128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner/* 228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner * x86 segmentation related helpers: 328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner * TSS, interrupts, system calls, jumps and call/task gates, descriptors 428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner * 528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner * Copyright (c) 2003 Fabrice Bellard 628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner * 728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner * This library is free software; you can redistribute it and/or 828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner * modify it under the terms of the GNU Lesser General Public 928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner * License as published by the Free Software Foundation; either 1028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner * version 2 of the License, or (at your option) any later version. 1128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner * 1228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner * This library is distributed in the hope that it will be useful, 1328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner * but WITHOUT ANY WARRANTY; without even the implied warranty of 1428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 1528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner * Lesser General Public License for more details. 1628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner * 1728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner * You should have received a copy of the GNU Lesser General Public 1828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner * License along with this library; if not, see <http://www.gnu.org/licenses/>. 1928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner */ 2028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 2128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#include "cpu.h" 2228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#include "qemu/log.h" 2328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#include "helper.h" 2428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 2528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#if !defined(CONFIG_USER_ONLY) 2628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#include "exec/softmmu_exec.h" 2728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif /* !defined(CONFIG_USER_ONLY) */ 2828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 2928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner//#define DEBUG_PCALL 3028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 3128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 3228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#ifdef DEBUG_PCALL 3328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner# define LOG_PCALL(...) qemu_log_mask(CPU_LOG_PCALL, ## __VA_ARGS__) 3428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner# define LOG_PCALL_STATE(env) \ 3528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner log_cpu_state_mask(CPU_LOG_PCALL, (env), X86_DUMP_CCOP) 3628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#else 3728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner# define LOG_PCALL(...) do { } while (0) 3828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner# define LOG_PCALL_STATE(env) do { } while (0) 3928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 4028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 4128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner/* return non zero if error */ 4228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnerstatic inline int load_segment(CPUX86State *env, 4328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t *e1_ptr, uint32_t *e2_ptr, 4428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int selector) 4528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 4628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner SegmentCache *dt; 4728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int index; 4828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner target_ulong ptr; 4928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 5028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (selector & 0x4) 5128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dt = &env->ldt; 5228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner else 5328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dt = &env->gdt; 5428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner index = selector & ~7; 5528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((index + 7) > dt->limit) 5628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner return -1; 5728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ptr = dt->base + index; 5828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner *e1_ptr = cpu_ldl_kernel(env, ptr); 5928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner *e2_ptr = cpu_ldl_kernel(env, ptr + 4); 6028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner return 0; 6128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 6228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 6328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnerstatic inline unsigned int get_seg_limit(uint32_t e1, uint32_t e2) 6428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 6528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner unsigned int limit; 6628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner limit = (e1 & 0xffff) | (e2 & 0x000f0000); 6728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (e2 & DESC_G_MASK) 6828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner limit = (limit << 12) | 0xfff; 6928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner return limit; 7028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 7128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 7228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnerstatic inline uint32_t get_seg_base(uint32_t e1, uint32_t e2) 7328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 7428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner return ((e1 >> 16) | ((e2 & 0xff) << 16) | (e2 & 0xff000000)); 7528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 7628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 7728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnerstatic inline void load_seg_cache_raw_dt(SegmentCache *sc, uint32_t e1, uint32_t e2) 7828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 7928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sc->base = get_seg_base(e1, e2); 8028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sc->limit = get_seg_limit(e1, e2); 8128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sc->flags = e2; 8228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 8328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 8428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner/* init the segment cache in vm86 mode. */ 8528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnerstatic inline void load_seg_vm(CPUX86State *env, int seg, int selector) 8628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 8728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner selector &= 0xffff; 8828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, seg, selector, 8928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner (selector << 4), 0xffff, 0); 9028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 9128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 9228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnerstatic inline void get_ss_esp_from_tss(CPUX86State *env, 9328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t *ss_ptr, 9428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t *esp_ptr, int dpl) 9528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 9628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int type, index, shift; 9728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 9828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#if 0 9928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner { 10028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int i; 10128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner printf("TR: base=%p limit=%x\n", env->tr.base, env->tr.limit); 10228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner for(i=0;i<env->tr.limit;i++) { 10328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner printf("%02x ", env->tr.base[i]); 10428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((i & 7) == 7) printf("\n"); 10528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 10628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner printf("\n"); 10728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 10828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 10928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 11028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(env->tr.flags & DESC_P_MASK)) 11128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_abort(env, "invalid tss"); 11228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner type = (env->tr.flags >> DESC_TYPE_SHIFT) & 0xf; 11328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((type & 7) != 1) 11428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_abort(env, "invalid tss type"); 11528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner shift = type >> 3; 11628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner index = (dpl * 4 + 2) << shift; 11728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (index + (4 << shift) - 1 > env->tr.limit) 11828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, env->tr.selector & 0xfffc); 11928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (shift == 0) { 12028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner *esp_ptr = cpu_lduw_kernel(env, env->tr.base + index); 12128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner *ss_ptr = cpu_lduw_kernel(env, env->tr.base + index + 2); 12228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 12328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner *esp_ptr = cpu_ldl_kernel(env, env->tr.base + index); 12428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner *ss_ptr = cpu_lduw_kernel(env, env->tr.base + index + 4); 12528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 12628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 12728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 12828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner/* XXX: merge with load_seg() */ 12928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnerstatic void tss_load_seg(CPUX86State *env, int seg_reg, int selector) 13028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 13128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t e1, e2; 13228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int rpl, dpl, cpl; 13328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 13428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((selector & 0xfffc) != 0) { 13528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (load_segment(env, &e1, &e2, selector) != 0) 13628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, selector & 0xfffc); 13728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_S_MASK)) 13828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, selector & 0xfffc); 13928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner rpl = selector & 3; 14028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dpl = (e2 >> DESC_DPL_SHIFT) & 3; 14128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpl = env->hflags & HF_CPL_MASK; 14228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (seg_reg == R_CS) { 14328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_CS_MASK)) 14428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, selector & 0xfffc); 14528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* XXX: is it correct ? */ 14628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dpl != rpl) 14728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, selector & 0xfffc); 14828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((e2 & DESC_C_MASK) && dpl > rpl) 14928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, selector & 0xfffc); 15028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else if (seg_reg == R_SS) { 15128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* SS must be writable data */ 15228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((e2 & DESC_CS_MASK) || !(e2 & DESC_W_MASK)) 15328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, selector & 0xfffc); 15428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dpl != cpl || dpl != rpl) 15528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, selector & 0xfffc); 15628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 15728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* not readable code */ 15828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((e2 & DESC_CS_MASK) && !(e2 & DESC_R_MASK)) 15928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, selector & 0xfffc); 16028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* if data or non conforming code, checks the rights */ 16128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (((e2 >> DESC_TYPE_SHIFT) & 0xf) < 12) { 16228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dpl < cpl || dpl < rpl) 16328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, selector & 0xfffc); 16428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 16528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 16628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_P_MASK)) 16728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0B_NOSEG, selector & 0xfffc); 16828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, seg_reg, selector, 16928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner get_seg_base(e1, e2), 17028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner get_seg_limit(e1, e2), 17128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e2); 17228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 17328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (seg_reg == R_SS || seg_reg == R_CS) 17428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, selector & 0xfffc); 17528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 17628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 17728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 17828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#define SWITCH_TSS_JMP 0 17928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#define SWITCH_TSS_IRET 1 18028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#define SWITCH_TSS_CALL 2 18128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 18228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner/* XXX: restore CPU state in registers (PowerPC case) */ 18328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnerstatic void switch_tss(CPUX86State *env, 18428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int tss_selector, 18528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t e1, uint32_t e2, int source, 18628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t next_eip) 18728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 18828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int tss_limit, tss_limit_max, type, old_tss_limit_max, old_type, v1, v2, i; 18928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner target_ulong tss_base; 19028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t new_regs[8], new_segs[6]; 19128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t new_eflags, new_eip, new_cr3, new_ldt; 19228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t old_eflags, eflags_mask; 19328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner SegmentCache *dt; 19428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int index; 19528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner target_ulong ptr; 19628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 19728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner type = (e2 >> DESC_TYPE_SHIFT) & 0xf; 19828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner LOG_PCALL("switch_tss: sel=0x%04x type=%d src=%d\n", tss_selector, type, source); 19928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 20028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* if task gate, we read the TSS segment and we load it */ 20128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (type == 5) { 20228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_P_MASK)) 20328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0B_NOSEG, tss_selector & 0xfffc); 20428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner tss_selector = e1 >> 16; 20528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (tss_selector & 4) 20628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, tss_selector & 0xfffc); 20728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (load_segment(env, &e1, &e2, tss_selector) != 0) 20828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, tss_selector & 0xfffc); 20928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (e2 & DESC_S_MASK) 21028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, tss_selector & 0xfffc); 21128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner type = (e2 >> DESC_TYPE_SHIFT) & 0xf; 21228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((type & 7) != 1) 21328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, tss_selector & 0xfffc); 21428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 21528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 21628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_P_MASK)) 21728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0B_NOSEG, tss_selector & 0xfffc); 21828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 21928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (type & 8) 22028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner tss_limit_max = 103; 22128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner else 22228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner tss_limit_max = 43; 22328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner tss_limit = get_seg_limit(e1, e2); 22428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner tss_base = get_seg_base(e1, e2); 22528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((tss_selector & 4) != 0 || 22628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner tss_limit < tss_limit_max) 22728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, tss_selector & 0xfffc); 22828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner old_type = (env->tr.flags >> DESC_TYPE_SHIFT) & 0xf; 22928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (old_type & 8) 23028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner old_tss_limit_max = 103; 23128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner else 23228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner old_tss_limit_max = 43; 23328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 23428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* read all the registers from the new TSS */ 23528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (type & 8) { 23628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* 32 bit */ 23728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_cr3 = cpu_ldl_kernel(env, tss_base + 0x1c); 23828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_eip = cpu_ldl_kernel(env, tss_base + 0x20); 23928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_eflags = cpu_ldl_kernel(env, tss_base + 0x24); 24028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner for(i = 0; i < 8; i++) 24128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_regs[i] = cpu_ldl_kernel(env, tss_base + (0x28 + i * 4)); 24228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner for(i = 0; i < 6; i++) 24328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_segs[i] = cpu_lduw_kernel(env, tss_base + (0x48 + i * 4)); 24428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_ldt = cpu_lduw_kernel(env, tss_base + 0x60); 24528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_ldl_kernel(env, tss_base + 0x64); 24628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 24728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* 16 bit */ 24828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_cr3 = 0; 24928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_eip = cpu_lduw_kernel(env, tss_base + 0x0e); 25028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_eflags = cpu_lduw_kernel(env, tss_base + 0x10); 25128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner for(i = 0; i < 8; i++) 25228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_regs[i] = cpu_lduw_kernel(env, tss_base + (0x12 + i * 2)) | 0xffff0000; 25328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner for(i = 0; i < 4; i++) 25428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_segs[i] = cpu_lduw_kernel(env, tss_base + (0x22 + i * 4)); 25528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_ldt = cpu_lduw_kernel(env, tss_base + 0x2a); 25628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_segs[R_FS] = 0; 25728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_segs[R_GS] = 0; 25828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 25928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 26028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* NOTE: we must avoid memory exceptions during the task switch, 26128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner so we make dummy accesses before */ 26228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* XXX: it can still fail in some cases, so a bigger hack is 26328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner necessary to valid the TLB after having done the accesses */ 26428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 26528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner v1 = cpu_ldub_kernel(env, env->tr.base); 26628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner v2 = cpu_ldub_kernel(env, env->tr.base + old_tss_limit_max); 26728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stb_kernel(env, env->tr.base, v1); 26828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stb_kernel(env, env->tr.base + old_tss_limit_max, v2); 26928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 27028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* clear busy bit (it is restartable) */ 27128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (source == SWITCH_TSS_JMP || source == SWITCH_TSS_IRET) { 27228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner target_ulong ptr; 27328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t e2; 27428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ptr = env->gdt.base + (env->tr.selector & ~7); 27528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e2 = cpu_ldl_kernel(env, ptr + 4); 27628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e2 &= ~DESC_TSS_BUSY_MASK; 27728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stl_kernel(env, ptr + 4, e2); 27828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 27928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner old_eflags = cpu_compute_eflags(env); 28028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (source == SWITCH_TSS_IRET) 28128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner old_eflags &= ~NT_MASK; 28228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 28328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* save the current state in the old TSS */ 28428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (type & 8) { 28528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* 32 bit */ 28628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stl_kernel(env, env->tr.base + 0x20, next_eip); 28728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stl_kernel(env, env->tr.base + 0x24, old_eflags); 28828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stl_kernel(env, env->tr.base + (0x28 + 0 * 4), EAX); 28928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stl_kernel(env, env->tr.base + (0x28 + 1 * 4), ECX); 29028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stl_kernel(env, env->tr.base + (0x28 + 2 * 4), EDX); 29128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stl_kernel(env, env->tr.base + (0x28 + 3 * 4), EBX); 29228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stl_kernel(env, env->tr.base + (0x28 + 4 * 4), ESP); 29328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stl_kernel(env, env->tr.base + (0x28 + 5 * 4), EBP); 29428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stl_kernel(env, env->tr.base + (0x28 + 6 * 4), ESI); 29528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stl_kernel(env, env->tr.base + (0x28 + 7 * 4), EDI); 29628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner for(i = 0; i < 6; i++) 29728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stw_kernel(env, env->tr.base + (0x48 + i * 4), env->segs[i].selector); 29828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 29928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* 16 bit */ 30028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stw_kernel(env, env->tr.base + 0x0e, next_eip); 30128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stw_kernel(env, env->tr.base + 0x10, old_eflags); 30228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stw_kernel(env, env->tr.base + (0x12 + 0 * 2), EAX); 30328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stw_kernel(env, env->tr.base + (0x12 + 1 * 2), ECX); 30428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stw_kernel(env, env->tr.base + (0x12 + 2 * 2), EDX); 30528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stw_kernel(env, env->tr.base + (0x12 + 3 * 2), EBX); 30628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stw_kernel(env, env->tr.base + (0x12 + 4 * 2), ESP); 30728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stw_kernel(env, env->tr.base + (0x12 + 5 * 2), EBP); 30828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stw_kernel(env, env->tr.base + (0x12 + 6 * 2), ESI); 30928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stw_kernel(env, env->tr.base + (0x12 + 7 * 2), EDI); 31028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner for(i = 0; i < 4; i++) 31128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stw_kernel(env, env->tr.base + (0x22 + i * 4), env->segs[i].selector); 31228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 31328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 31428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* now if an exception occurs, it will occurs in the next task 31528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner context */ 31628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 31728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (source == SWITCH_TSS_CALL) { 31828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stw_kernel(env, tss_base, env->tr.selector); 31928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_eflags |= NT_MASK; 32028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 32128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 32228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* set busy bit */ 32328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (source == SWITCH_TSS_JMP || source == SWITCH_TSS_CALL) { 32428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner target_ulong ptr; 32528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t e2; 32628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ptr = env->gdt.base + (tss_selector & ~7); 32728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e2 = cpu_ldl_kernel(env, ptr + 4); 32828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e2 |= DESC_TSS_BUSY_MASK; 32928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stl_kernel(env, ptr + 4, e2); 33028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 33128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 33228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* set the new CPU state */ 33328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* from this point, any exception which occurs can give problems */ 33428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->cr[0] |= CR0_TS_MASK; 33528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->hflags |= HF_TS_MASK; 33628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->tr.selector = tss_selector; 33728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->tr.base = tss_base; 33828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->tr.limit = tss_limit; 33928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->tr.flags = e2 & ~DESC_TSS_BUSY_MASK; 34028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 34128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((type & 8) && (env->cr[0] & CR0_PG_MASK)) { 34228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_update_cr3(env, new_cr3); 34328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 34428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 34528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* load all registers without an exception, then reload them with 34628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner possible exception */ 34728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->eip = new_eip; 34828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner eflags_mask = TF_MASK | AC_MASK | ID_MASK | 34928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner IF_MASK | IOPL_MASK | VM_MASK | RF_MASK | NT_MASK; 35028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(type & 8)) 35128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner eflags_mask &= 0xffff; 35228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_load_eflags(env, new_eflags, eflags_mask); 35328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* XXX: what to do in 16 bit case ? */ 35428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner EAX = new_regs[0]; 35528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ECX = new_regs[1]; 35628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner EDX = new_regs[2]; 35728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner EBX = new_regs[3]; 35828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ESP = new_regs[4]; 35928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner EBP = new_regs[5]; 36028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ESI = new_regs[6]; 36128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner EDI = new_regs[7]; 36228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (new_eflags & VM_MASK) { 36328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner for(i = 0; i < 6; i++) 36428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner load_seg_vm(env, i, new_segs[i]); 36528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* in vm86, CPL is always 3 */ 36628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_set_cpl(env, 3); 36728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 36828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* CPL is set the RPL of CS */ 36928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_set_cpl(env, new_segs[R_CS] & 3); 37028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* first just selectors as the rest may trigger exceptions */ 37128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner for(i = 0; i < 6; i++) 37228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, i, new_segs[i], 0, 0, 0); 37328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 37428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 37528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->ldt.selector = new_ldt & ~4; 37628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->ldt.base = 0; 37728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->ldt.limit = 0; 37828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->ldt.flags = 0; 37928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 38028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* load the LDT */ 38128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (new_ldt & 4) 38228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, new_ldt & 0xfffc); 38328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 38428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((new_ldt & 0xfffc) != 0) { 38528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dt = &env->gdt; 38628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner index = new_ldt & ~7; 38728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((index + 7) > dt->limit) 38828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, new_ldt & 0xfffc); 38928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ptr = dt->base + index; 39028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e1 = cpu_ldl_kernel(env, ptr); 39128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e2 = cpu_ldl_kernel(env, ptr + 4); 39228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((e2 & DESC_S_MASK) || ((e2 >> DESC_TYPE_SHIFT) & 0xf) != 2) 39328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, new_ldt & 0xfffc); 39428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_P_MASK)) 39528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, new_ldt & 0xfffc); 39628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner load_seg_cache_raw_dt(&env->ldt, e1, e2); 39728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 39828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 39928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* load the segments */ 40028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(new_eflags & VM_MASK)) { 40128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner tss_load_seg(env, R_CS, new_segs[R_CS]); 40228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner tss_load_seg(env, R_SS, new_segs[R_SS]); 40328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner tss_load_seg(env, R_ES, new_segs[R_ES]); 40428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner tss_load_seg(env, R_DS, new_segs[R_DS]); 40528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner tss_load_seg(env, R_FS, new_segs[R_FS]); 40628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner tss_load_seg(env, R_GS, new_segs[R_GS]); 40728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 40828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 40928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* check that EIP is in the CS segment limits */ 41028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (new_eip > env->segs[R_CS].limit) { 41128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* XXX: different exception if CALL ? */ 41228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, 0); 41328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 41428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 41528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#ifndef CONFIG_USER_ONLY 41628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* reset local breakpoints */ 41728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->dr[7] & 0x55) { 41828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner for (i = 0; i < 4; i++) { 41928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (hw_breakpoint_enabled(env->dr[7], i) == 0x1) 42028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner hw_breakpoint_remove(env, i); 42128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 42228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->dr[7] &= ~0x55; 42328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 42428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 42528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 42628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 42728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnerstatic inline unsigned int get_sp_mask(unsigned int e2) 42828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 42928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (e2 & DESC_B_MASK) 43028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner return 0xffffffff; 43128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner else 43228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner return 0xffff; 43328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 43428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 43528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnerstatic int exeption_has_error_code(int intno) 43628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 43728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner switch(intno) { 43828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 8: 43928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 10: 44028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 11: 44128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 12: 44228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 13: 44328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 14: 44428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 17: 44528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner return 1; 44628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 44728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner return 0; 44828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 44928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 45028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#ifdef TARGET_X86_64 45128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#define SET_ESP(val, sp_mask)\ 45228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnerdo {\ 45328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((sp_mask) == 0xffff)\ 45428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ESP = (ESP & ~0xffff) | ((val) & 0xffff);\ 45528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner else if ((sp_mask) == 0xffffffffLL)\ 45628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ESP = (uint32_t)(val);\ 45728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner else\ 45828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ESP = (val);\ 45928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} while (0) 46028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#else 46128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#define SET_ESP(val, sp_mask) ESP = (ESP & ~(sp_mask)) | ((val) & (sp_mask)) 46228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 46328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 46428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner/* in 64-bit machines, this can overflow. So this segment addition macro 46528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner * can be used to trim the value to 32-bit whenever needed */ 46628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#define SEG_ADDL(ssp, sp, sp_mask) ((uint32_t)((ssp) + (sp & (sp_mask)))) 46728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 46828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner/* XXX: add a is_user flag to have proper security support */ 46928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#define PUSHW(ssp, sp, sp_mask, val)\ 47028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{\ 47128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sp -= 2;\ 47228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stw_kernel(env, (ssp) + (sp & (sp_mask)), (val));\ 47328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 47428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 47528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#define PUSHL(ssp, sp, sp_mask, val)\ 47628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{\ 47728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sp -= 4;\ 47828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stl_kernel(env, SEG_ADDL(ssp, sp, sp_mask), (uint32_t)(val));\ 47928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 48028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 48128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#define POPW(ssp, sp, sp_mask, val)\ 48228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{\ 48328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner val = cpu_lduw_kernel(env, (ssp) + (sp & (sp_mask)));\ 48428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sp += 2;\ 48528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 48628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 48728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#define POPL(ssp, sp, sp_mask, val)\ 48828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{\ 48928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner val = (uint32_t)cpu_ldl_kernel(env, SEG_ADDL(ssp, sp, sp_mask));\ 49028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sp += 4;\ 49128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 49228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 49328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner/* protected mode interrupt */ 49428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnerstatic void do_interrupt_protected(CPUX86State *env, 49528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int intno, int is_int, int error_code, 49628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner unsigned int next_eip, int is_hw) 49728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 49828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner SegmentCache *dt; 49928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner target_ulong ptr, ssp; 50028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int type, dpl, selector, ss_dpl, cpl; 50128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int has_error_code, new_stack, shift; 50228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t e1, e2, offset, ss = 0, esp, ss_e1 = 0, ss_e2 = 0; 50328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t old_eip, sp_mask; 50428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 50528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner has_error_code = 0; 50628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!is_int && !is_hw) 50728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner has_error_code = exeption_has_error_code(intno); 50828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (is_int) 50928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner old_eip = next_eip; 51028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner else 51128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner old_eip = env->eip; 51228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 51328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dt = &env->idt; 51428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (intno * 8 + 7 > dt->limit) 51528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, intno * 8 + 2); 51628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ptr = dt->base + intno * 8; 51728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e1 = cpu_ldl_kernel(env, ptr); 51828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e2 = cpu_ldl_kernel(env, ptr + 4); 51928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* check gate type */ 52028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner type = (e2 >> DESC_TYPE_SHIFT) & 0x1f; 52128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner switch(type) { 52228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 5: /* task gate */ 52328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* must do that check here to return the correct error code */ 52428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_P_MASK)) 52528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0B_NOSEG, intno * 8 + 2); 52628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner switch_tss(env, intno * 8, e1, e2, SWITCH_TSS_CALL, old_eip); 52728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (has_error_code) { 52828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int type; 52928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t mask; 53028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* push the error code */ 53128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner type = (env->tr.flags >> DESC_TYPE_SHIFT) & 0xf; 53228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner shift = type >> 3; 53328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->segs[R_SS].flags & DESC_B_MASK) 53428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner mask = 0xffffffff; 53528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner else 53628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner mask = 0xffff; 53728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp = (ESP - (2 << shift)) & mask; 53828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ssp = env->segs[R_SS].base + esp; 53928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (shift) 54028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stl_kernel(env, ssp, error_code); 54128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner else 54228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stw_kernel(env, ssp, error_code); 54328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner SET_ESP(esp, mask); 54428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 54528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner return; 54628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 6: /* 286 interrupt gate */ 54728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 7: /* 286 trap gate */ 54828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 14: /* 386 interrupt gate */ 54928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 15: /* 386 trap gate */ 55028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner break; 55128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner default: 55228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, intno * 8 + 2); 55328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner break; 55428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 55528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dpl = (e2 >> DESC_DPL_SHIFT) & 3; 55628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpl = env->hflags & HF_CPL_MASK; 55728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* check privilege if software int */ 55828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (is_int && dpl < cpl) 55928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, intno * 8 + 2); 56028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* check valid bit */ 56128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_P_MASK)) 56228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0B_NOSEG, intno * 8 + 2); 56328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner selector = e1 >> 16; 56428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner offset = (e2 & 0xffff0000) | (e1 & 0x0000ffff); 56528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((selector & 0xfffc) == 0) 56628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, 0); 56728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 56828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (load_segment(env, &e1, &e2, selector) != 0) 56928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 57028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_S_MASK) || !(e2 & (DESC_CS_MASK))) 57128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 57228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dpl = (e2 >> DESC_DPL_SHIFT) & 3; 57328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dpl > cpl) 57428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 57528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_P_MASK)) 57628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0B_NOSEG, selector & 0xfffc); 57728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_C_MASK) && dpl < cpl) { 57828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* to inner privilege */ 57928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner get_ss_esp_from_tss(env, &ss, &esp, dpl); 58028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((ss & 0xfffc) == 0) 58128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, ss & 0xfffc); 58228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((ss & 3) != dpl) 58328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, ss & 0xfffc); 58428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (load_segment(env, &ss_e1, &ss_e2, ss) != 0) 58528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, ss & 0xfffc); 58628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ss_dpl = (ss_e2 >> DESC_DPL_SHIFT) & 3; 58728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (ss_dpl != dpl) 58828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, ss & 0xfffc); 58928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(ss_e2 & DESC_S_MASK) || 59028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner (ss_e2 & DESC_CS_MASK) || 59128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner !(ss_e2 & DESC_W_MASK)) 59228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, ss & 0xfffc); 59328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(ss_e2 & DESC_P_MASK)) 59428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, ss & 0xfffc); 59528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_stack = 1; 59628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sp_mask = get_sp_mask(ss_e2); 59728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ssp = get_seg_base(ss_e1, ss_e2); 59828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else if ((e2 & DESC_C_MASK) || dpl == cpl) { 59928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* to same privilege */ 60028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->eflags & VM_MASK) 60128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 60228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_stack = 0; 60328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sp_mask = get_sp_mask(env->segs[R_SS].flags); 60428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ssp = env->segs[R_SS].base; 60528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp = ESP; 60628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dpl = cpl; 60728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 60828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 60928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_stack = 0; /* avoid warning */ 61028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sp_mask = 0; /* avoid warning */ 61128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ssp = 0; /* avoid warning */ 61228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp = 0; /* avoid warning */ 61328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 61428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 61528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner shift = type >> 3; 61628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 61728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#if 0 61828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* XXX: check that enough room is available */ 61928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner push_size = 6 + (new_stack << 2) + (has_error_code << 1); 62028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->eflags & VM_MASK) 62128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner push_size += 8; 62228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner push_size <<= shift; 62328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 62428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (shift == 1) { 62528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (new_stack) { 62628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->eflags & VM_MASK) { 62728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHL(ssp, esp, sp_mask, env->segs[R_GS].selector); 62828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHL(ssp, esp, sp_mask, env->segs[R_FS].selector); 62928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHL(ssp, esp, sp_mask, env->segs[R_DS].selector); 63028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHL(ssp, esp, sp_mask, env->segs[R_ES].selector); 63128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 63228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHL(ssp, esp, sp_mask, env->segs[R_SS].selector); 63328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHL(ssp, esp, sp_mask, ESP); 63428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 63528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHL(ssp, esp, sp_mask, cpu_compute_eflags(env)); 63628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHL(ssp, esp, sp_mask, env->segs[R_CS].selector); 63728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHL(ssp, esp, sp_mask, old_eip); 63828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (has_error_code) { 63928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHL(ssp, esp, sp_mask, error_code); 64028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 64128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 64228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (new_stack) { 64328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->eflags & VM_MASK) { 64428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHW(ssp, esp, sp_mask, env->segs[R_GS].selector); 64528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHW(ssp, esp, sp_mask, env->segs[R_FS].selector); 64628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHW(ssp, esp, sp_mask, env->segs[R_DS].selector); 64728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHW(ssp, esp, sp_mask, env->segs[R_ES].selector); 64828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 64928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHW(ssp, esp, sp_mask, env->segs[R_SS].selector); 65028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHW(ssp, esp, sp_mask, ESP); 65128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 65228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHW(ssp, esp, sp_mask, cpu_compute_eflags(env)); 65328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHW(ssp, esp, sp_mask, env->segs[R_CS].selector); 65428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHW(ssp, esp, sp_mask, old_eip); 65528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (has_error_code) { 65628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHW(ssp, esp, sp_mask, error_code); 65728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 65828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 65928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 66028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (new_stack) { 66128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->eflags & VM_MASK) { 66228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_ES, 0, 0, 0, 0); 66328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_DS, 0, 0, 0, 0); 66428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_FS, 0, 0, 0, 0); 66528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_GS, 0, 0, 0, 0); 66628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 66728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ss = (ss & ~3) | dpl; 66828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_SS, ss, 66928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ssp, get_seg_limit(ss_e1, ss_e2), ss_e2); 67028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 67128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner SET_ESP(esp, sp_mask); 67228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 67328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner selector = (selector & ~3) | dpl; 67428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_CS, selector, 67528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner get_seg_base(e1, e2), 67628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner get_seg_limit(e1, e2), 67728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e2); 67828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_set_cpl(env, dpl); 67928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->eip = offset; 68028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 68128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* interrupt gate clear IF mask */ 68228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((type & 1) == 0) { 68328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->eflags &= ~IF_MASK; 68428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 68528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->eflags &= ~(TF_MASK | VM_MASK | RF_MASK | NT_MASK); 68628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 68728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 68828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#ifdef TARGET_X86_64 68928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 69028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#define PUSHQ(sp, val)\ 69128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{\ 69228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sp -= 8;\ 69328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stq_kernel(env, sp, (val));\ 69428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 69528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 69628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#define POPQ(sp, val)\ 69728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{\ 69828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner val = cpu_ldq_kernel(env, sp);\ 69928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sp += 8;\ 70028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 70128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 70228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnerstatic inline target_ulong get_rsp_from_tss(CPUX86State *env, int level) 70328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 70428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int index; 70528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 70628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#if 0 70728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner printf("TR: base=" TARGET_FMT_lx " limit=%x\n", 70828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->tr.base, env->tr.limit); 70928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 71028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 71128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(env->tr.flags & DESC_P_MASK)) 71228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_abort(env, "invalid tss"); 71328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner index = 8 * level + 4; 71428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((index + 7) > env->tr.limit) 71528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, env->tr.selector & 0xfffc); 71628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner return cpu_ldq_kernel(env, env->tr.base + index); 71728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 71828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 71928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner/* 64 bit interrupt */ 72028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnerstatic void do_interrupt64(CPUX86State *env, 72128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int intno, int is_int, int error_code, 72228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner target_ulong next_eip, int is_hw) 72328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 72428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner SegmentCache *dt; 72528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner target_ulong ptr; 72628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int type, dpl, selector, cpl, ist; 72728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int has_error_code, new_stack; 72828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t e1, e2, e3, ss; 72928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner target_ulong old_eip, esp, offset; 73028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 73128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner has_error_code = 0; 73228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!is_int && !is_hw) 73328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner has_error_code = exeption_has_error_code(intno); 73428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (is_int) 73528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner old_eip = next_eip; 73628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner else 73728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner old_eip = env->eip; 73828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 73928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dt = &env->idt; 74028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (intno * 16 + 15 > dt->limit) 74128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, intno * 16 + 2); 74228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ptr = dt->base + intno * 16; 74328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e1 = cpu_ldl_kernel(env, ptr); 74428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e2 = cpu_ldl_kernel(env, ptr + 4); 74528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e3 = cpu_ldl_kernel(env, ptr + 8); 74628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* check gate type */ 74728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner type = (e2 >> DESC_TYPE_SHIFT) & 0x1f; 74828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner switch(type) { 74928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 14: /* 386 interrupt gate */ 75028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 15: /* 386 trap gate */ 75128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner break; 75228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner default: 75328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, intno * 16 + 2); 75428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner break; 75528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 75628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dpl = (e2 >> DESC_DPL_SHIFT) & 3; 75728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpl = env->hflags & HF_CPL_MASK; 75828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* check privilege if software int */ 75928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (is_int && dpl < cpl) 76028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, intno * 16 + 2); 76128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* check valid bit */ 76228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_P_MASK)) 76328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0B_NOSEG, intno * 16 + 2); 76428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner selector = e1 >> 16; 76528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner offset = ((target_ulong)e3 << 32) | (e2 & 0xffff0000) | (e1 & 0x0000ffff); 76628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ist = e2 & 7; 76728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((selector & 0xfffc) == 0) 76828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, 0); 76928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 77028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (load_segment(env, &e1, &e2, selector) != 0) 77128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 77228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_S_MASK) || !(e2 & (DESC_CS_MASK))) 77328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 77428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dpl = (e2 >> DESC_DPL_SHIFT) & 3; 77528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dpl > cpl) 77628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 77728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_P_MASK)) 77828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0B_NOSEG, selector & 0xfffc); 77928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_L_MASK) || (e2 & DESC_B_MASK)) 78028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 78128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((!(e2 & DESC_C_MASK) && dpl < cpl) || ist != 0) { 78228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* to inner privilege */ 78328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (ist != 0) 78428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp = get_rsp_from_tss(env, ist + 3); 78528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner else 78628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp = get_rsp_from_tss(env, dpl); 78728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp &= ~0xfLL; /* align stack */ 78828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ss = 0; 78928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_stack = 1; 79028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else if ((e2 & DESC_C_MASK) || dpl == cpl) { 79128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* to same privilege */ 79228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->eflags & VM_MASK) 79328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 79428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_stack = 0; 79528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (ist != 0) 79628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp = get_rsp_from_tss(env, ist + 3); 79728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner else 79828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp = ESP; 79928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp &= ~0xfLL; /* align stack */ 80028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dpl = cpl; 80128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 80228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 80328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_stack = 0; /* avoid warning */ 80428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp = 0; /* avoid warning */ 80528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 80628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 80728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHQ(esp, env->segs[R_SS].selector); 80828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHQ(esp, ESP); 80928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHQ(esp, cpu_compute_eflags(env)); 81028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHQ(esp, env->segs[R_CS].selector); 81128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHQ(esp, old_eip); 81228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (has_error_code) { 81328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHQ(esp, error_code); 81428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 81528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 81628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (new_stack) { 81728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ss = 0 | dpl; 81828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_SS, ss, 0, 0, 0); 81928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 82028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ESP = esp; 82128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 82228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner selector = (selector & ~3) | dpl; 82328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_CS, selector, 82428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner get_seg_base(e1, e2), 82528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner get_seg_limit(e1, e2), 82628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e2); 82728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_set_cpl(env, dpl); 82828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->eip = offset; 82928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 83028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* interrupt gate clear IF mask */ 83128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((type & 1) == 0) { 83228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->eflags &= ~IF_MASK; 83328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 83428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->eflags &= ~(TF_MASK | VM_MASK | RF_MASK | NT_MASK); 83528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 83628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 83728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 83828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#ifdef TARGET_X86_64 83928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#if defined(CONFIG_USER_ONLY) 84028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnervoid helper_syscall(CPUX86State *env, int next_eip_addend) 84128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 84228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->exception_index = EXCP_SYSCALL; 84328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->exception_next_eip = env->eip + next_eip_addend; 84428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_loop_exit(env); 84528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 84628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#else 84728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnervoid helper_syscall(CPUX86State *env, int next_eip_addend) 84828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 84928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int selector; 85028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 85128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(env->efer & MSR_EFER_SCE)) { 85228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP06_ILLOP, 0); 85328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 85428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner selector = (env->star >> 32) & 0xffff; 85528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->hflags & HF_LMA_MASK) { 85628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int code64; 85728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 85828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ECX = env->eip + next_eip_addend; 85928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->regs[11] = cpu_compute_eflags(env); 86028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 86128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner code64 = env->hflags & HF_CS64_MASK; 86228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 86328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_set_cpl(env, 0); 86428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_CS, selector & 0xfffc, 86528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 0, 0xffffffff, 86628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_G_MASK | DESC_P_MASK | 86728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_S_MASK | 86828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK | DESC_L_MASK); 86928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_SS, (selector + 8) & 0xfffc, 87028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 0, 0xffffffff, 87128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | 87228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_S_MASK | 87328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_W_MASK | DESC_A_MASK); 87428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->eflags &= ~env->fmask; 87528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_load_eflags(env, env->eflags, 0); 87628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (code64) 87728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->eip = env->lstar; 87828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner else 87928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->eip = env->cstar; 88028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 88128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ECX = (uint32_t)(env->eip + next_eip_addend); 88228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 88328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_set_cpl(env, 0); 88428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_CS, selector & 0xfffc, 88528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 0, 0xffffffff, 88628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | 88728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_S_MASK | 88828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK); 88928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_SS, (selector + 8) & 0xfffc, 89028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 0, 0xffffffff, 89128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | 89228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_S_MASK | 89328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_W_MASK | DESC_A_MASK); 89428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->eflags &= ~(IF_MASK | RF_MASK | VM_MASK); 89528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->eip = (uint32_t)env->star; 89628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 89728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 89828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 89928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 90028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 90128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#ifdef TARGET_X86_64 90228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnervoid helper_sysret(CPUX86State *env, int dflag) 90328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 90428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int cpl, selector; 90528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 90628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(env->efer & MSR_EFER_SCE)) { 90728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP06_ILLOP, 0); 90828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 90928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpl = env->hflags & HF_CPL_MASK; 91028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(env->cr[0] & CR0_PE_MASK) || cpl != 0) { 91128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, 0); 91228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 91328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner selector = (env->star >> 48) & 0xffff; 91428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->hflags & HF_LMA_MASK) { 91528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dflag == 2) { 91628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_CS, (selector + 16) | 3, 91728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 0, 0xffffffff, 91828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_G_MASK | DESC_P_MASK | 91928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_S_MASK | (3 << DESC_DPL_SHIFT) | 92028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK | 92128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_L_MASK); 92228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->eip = ECX; 92328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 92428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_CS, selector | 3, 92528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 0, 0xffffffff, 92628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | 92728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_S_MASK | (3 << DESC_DPL_SHIFT) | 92828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK); 92928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->eip = (uint32_t)ECX; 93028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 93128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_SS, selector + 8, 93228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 0, 0xffffffff, 93328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | 93428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_S_MASK | (3 << DESC_DPL_SHIFT) | 93528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_W_MASK | DESC_A_MASK); 93628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_load_eflags(env, (uint32_t)(env->regs[11]), TF_MASK | AC_MASK | ID_MASK | 93728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner IF_MASK | IOPL_MASK | VM_MASK | RF_MASK | NT_MASK); 93828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_set_cpl(env, 3); 93928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 94028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_CS, selector | 3, 94128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 0, 0xffffffff, 94228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | 94328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_S_MASK | (3 << DESC_DPL_SHIFT) | 94428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK); 94528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->eip = (uint32_t)ECX; 94628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_SS, selector + 8, 94728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 0, 0xffffffff, 94828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | 94928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_S_MASK | (3 << DESC_DPL_SHIFT) | 95028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_W_MASK | DESC_A_MASK); 95128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->eflags |= IF_MASK; 95228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_set_cpl(env, 3); 95328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 95428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 95528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 95628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 95728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner/* real mode interrupt */ 95828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnerstatic void do_interrupt_real(CPUX86State *env, 95928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int intno, int is_int, int error_code, 96028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner unsigned int next_eip) 96128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 96228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner SegmentCache *dt; 96328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner target_ulong ptr, ssp; 96428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int selector; 96528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t offset, esp; 96628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t old_cs, old_eip; 96728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 96828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* real mode (simpler !) */ 96928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dt = &env->idt; 97028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (intno * 4 + 3 > dt->limit) 97128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, intno * 8 + 2); 97228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ptr = dt->base + intno * 4; 97328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner offset = cpu_lduw_kernel(env, ptr); 97428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner selector = cpu_lduw_kernel(env, ptr + 2); 97528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp = ESP; 97628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ssp = env->segs[R_SS].base; 97728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (is_int) 97828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner old_eip = next_eip; 97928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner else 98028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner old_eip = env->eip; 98128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner old_cs = env->segs[R_CS].selector; 98228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* XXX: use SS segment size ? */ 98328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHW(ssp, esp, 0xffff, cpu_compute_eflags(env)); 98428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHW(ssp, esp, 0xffff, old_cs); 98528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHW(ssp, esp, 0xffff, old_eip); 98628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 98728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* update processor state */ 98828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ESP = (ESP & ~0xffff) | (esp & 0xffff); 98928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->eip = offset; 99028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->segs[R_CS].selector = selector; 99128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->segs[R_CS].base = (selector << 4); 99228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->eflags &= ~(IF_MASK | TF_MASK | AC_MASK | RF_MASK); 99328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 99428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 99528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#if defined(CONFIG_USER_ONLY) 99628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner/* fake user mode interrupt */ 99728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnerstatic void do_interrupt_user(CPUX86State *env, 99828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int intno, int is_int, int error_code, 99928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner target_ulong next_eip) 100028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 100128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner SegmentCache *dt; 100228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner target_ulong ptr; 100328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int dpl, cpl, shift; 100428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t e2; 100528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 100628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dt = &env->idt; 100728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->hflags & HF_LMA_MASK) { 100828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner shift = 4; 100928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 101028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner shift = 3; 101128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 101228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ptr = dt->base + (intno << shift); 101328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e2 = cpu_ldl_kernel(env, ptr + 4); 101428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 101528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dpl = (e2 >> DESC_DPL_SHIFT) & 3; 101628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpl = env->hflags & HF_CPL_MASK; 101728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* check privilege if software int */ 101828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (is_int && dpl < cpl) 101928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, (intno << shift) + 2); 102028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 102128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* Since we emulate only user space, we cannot do more than 102228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner exiting the emulation with the suitable exception and error 102328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner code */ 102428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (is_int) 102528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner EIP = next_eip; 102628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 102728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 102828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#else 102928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 103028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnerstatic void handle_even_inj(CPUX86State *env, 103128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int intno, int is_int, int error_code, 103228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int is_hw, int rm) 103328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 103428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t event_inj = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.event_inj)); 103528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(event_inj & SVM_EVTINJ_VALID)) { 103628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int type; 103728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (is_int) 103828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner type = SVM_EVTINJ_TYPE_SOFT; 103928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner else 104028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner type = SVM_EVTINJ_TYPE_EXEPT; 104128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner event_inj = intno | type | SVM_EVTINJ_VALID; 104228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!rm && exeption_has_error_code(intno)) { 104328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner event_inj |= SVM_EVTINJ_VALID_ERR; 104428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner stl_phys(env->vm_vmcb + offsetof(struct vmcb, control.event_inj_err), error_code); 104528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 104628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner stl_phys(env->vm_vmcb + offsetof(struct vmcb, control.event_inj), event_inj); 104728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 104828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 104928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 105028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 105128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner/* 105228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner * Begin execution of an interruption. is_int is TRUE if coming from 105328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner * the int instruction. next_eip is the EIP value AFTER the interrupt 105428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner * instruction. It is only relevant if is_int is TRUE. 105528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner */ 105628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnerstatic void do_interrupt_all(CPUX86State *env, 105728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int intno, int is_int, int error_code, 105828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner target_ulong next_eip, int is_hw) 105928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 106028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (qemu_loglevel_mask(CPU_LOG_INT)) { 106128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((env->cr[0] & CR0_PE_MASK)) { 106228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner static int count; 106328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner qemu_log("%6d: v=%02x e=%04x i=%d cpl=%d IP=%04x:" TARGET_FMT_lx " pc=" TARGET_FMT_lx " SP=%04x:" TARGET_FMT_lx, 106428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner count, intno, error_code, is_int, 106528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->hflags & HF_CPL_MASK, 106628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->segs[R_CS].selector, EIP, 106728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner (int)env->segs[R_CS].base + EIP, 106828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->segs[R_SS].selector, ESP); 106928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (intno == 0x0e) { 107028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner qemu_log(" CR2=" TARGET_FMT_lx, env->cr[2]); 107128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 107228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner qemu_log(" EAX=" TARGET_FMT_lx, EAX); 107328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 107428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner qemu_log("\n"); 107528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner log_cpu_state(ENV_GET_CPU(env), X86_DUMP_CCOP); 107628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#if 0 107728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner { 107828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int i; 107928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint8_t *ptr; 108028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner qemu_log(" code="); 108128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ptr = env->segs[R_CS].base + env->eip; 108228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner for(i = 0; i < 16; i++) { 108328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner qemu_log(" %02x", ldub(ptr + i)); 108428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 108528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner qemu_log("\n"); 108628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 108728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 108828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner count++; 108928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 109028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 109128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->cr[0] & CR0_PE_MASK) { 109228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#if !defined(CONFIG_USER_ONLY) 109328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->hflags & HF_SVMI_MASK) 109428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner handle_even_inj(env, intno, is_int, error_code, is_hw, 0); 109528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 109628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#ifdef TARGET_X86_64 109728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->hflags & HF_LMA_MASK) { 109828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner do_interrupt64(env, intno, is_int, error_code, next_eip, is_hw); 109928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else 110028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 110128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner { 110228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner do_interrupt_protected(env, intno, is_int, error_code, next_eip, is_hw); 110328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 110428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 110528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#if !defined(CONFIG_USER_ONLY) 110628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->hflags & HF_SVMI_MASK) 110728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner handle_even_inj(env, intno, is_int, error_code, is_hw, 1); 110828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 110928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner do_interrupt_real(env, intno, is_int, error_code, next_eip); 111028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 111128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 111228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#if !defined(CONFIG_USER_ONLY) 111328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->hflags & HF_SVMI_MASK) { 111428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t event_inj = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.event_inj)); 111528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner stl_phys(env->vm_vmcb + offsetof(struct vmcb, control.event_inj), event_inj & ~SVM_EVTINJ_VALID); 111628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 111728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 111828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 111928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 112028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnervoid do_interrupt(CPUX86State *env) 112128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 112228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#if defined(CONFIG_USER_ONLY) 112328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* if user mode only, we simulate a fake exception 112428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner which will be handled outside the cpu execution 112528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner loop */ 112628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner do_interrupt_user(env, 112728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->exception_index, 112828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->exception_is_int, 112928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->error_code, 113028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->exception_next_eip); 113128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* successfully delivered */ 113228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->old_exception = -1; 113328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#else 113428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* simulate a real cpu exception. On i386, it can 113528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner trigger new exceptions, but we do not handle 113628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner double or triple faults yet. */ 113728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner do_interrupt_all(env, 113828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->exception_index, 113928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->exception_is_int, 114028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->error_code, 114128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->exception_next_eip, 0); 114228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* successfully delivered */ 114328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->old_exception = -1; 114428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 114528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 114628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 114728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnervoid do_interrupt_x86_hardirq(CPUX86State *env, int intno, int is_hw) 114828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 114928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner do_interrupt_all(env, intno, 0, 0, 0, is_hw); 115028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 115128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 115228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner/* This should come from sysemu.h - if we could include it here... */ 115328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnervoid qemu_system_reset_request(void); 115428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 115528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnervoid helper_enter_level(CPUX86State *env, 115628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int level, int data32, target_ulong t1) 115728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 115828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner target_ulong ssp; 115928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t esp_mask, esp, ebp; 116028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 116128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp_mask = get_sp_mask(env->segs[R_SS].flags); 116228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ssp = env->segs[R_SS].base; 116328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ebp = EBP; 116428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp = ESP; 116528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (data32) { 116628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* 32 bit */ 116728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp -= 4; 116828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner while (--level) { 116928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp -= 4; 117028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ebp -= 4; 117128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stl_data(env, ssp + (esp & esp_mask), 117228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_ldl_data(env, ssp + (ebp & esp_mask))); 117328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 117428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp -= 4; 117528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stl_data(env, ssp + (esp & esp_mask), t1); 117628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 117728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* 16 bit */ 117828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp -= 2; 117928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner while (--level) { 118028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp -= 2; 118128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ebp -= 2; 118228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stw_data(env, ssp + (esp & esp_mask), 118328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_lduw_data(env, ssp + (ebp & esp_mask))); 118428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 118528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp -= 2; 118628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stw_data(env, ssp + (esp & esp_mask), t1); 118728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 118828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 118928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 119028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#ifdef TARGET_X86_64 119128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnervoid helper_enter64_level(CPUX86State *env, 119228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int level, int data64, target_ulong t1) 119328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 119428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner target_ulong esp, ebp; 119528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ebp = EBP; 119628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp = ESP; 119728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 119828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (data64) { 119928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* 64 bit */ 120028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp -= 8; 120128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner while (--level) { 120228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp -= 8; 120328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ebp -= 8; 120428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stq_data(env, esp, cpu_ldq_data(env, ebp)); 120528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 120628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp -= 8; 120728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stq_data(env, esp, t1); 120828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 120928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* 16 bit */ 121028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp -= 2; 121128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner while (--level) { 121228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp -= 2; 121328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ebp -= 2; 121428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stw_data(env, esp, cpu_lduw_data(env, ebp)); 121528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 121628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp -= 2; 121728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stw_data(env, esp, t1); 121828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 121928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 122028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 122128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 122228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnervoid helper_lldt(CPUX86State *env, int selector) 122328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 122428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner SegmentCache *dt; 122528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t e1, e2; 122628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int index, entry_limit; 122728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner target_ulong ptr; 122828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 122928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner selector &= 0xffff; 123028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((selector & 0xfffc) == 0) { 123128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* XXX: NULL selector case: invalid LDT */ 123228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->ldt.base = 0; 123328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->ldt.limit = 0; 123428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 123528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (selector & 0x4) 123628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 123728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dt = &env->gdt; 123828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner index = selector & ~7; 123928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#ifdef TARGET_X86_64 124028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->hflags & HF_LMA_MASK) 124128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner entry_limit = 15; 124228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner else 124328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 124428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner entry_limit = 7; 124528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((index + entry_limit) > dt->limit) 124628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 124728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ptr = dt->base + index; 124828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e1 = cpu_ldl_kernel(env, ptr); 124928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e2 = cpu_ldl_kernel(env, ptr + 4); 125028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((e2 & DESC_S_MASK) || ((e2 >> DESC_TYPE_SHIFT) & 0xf) != 2) 125128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 125228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_P_MASK)) 125328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0B_NOSEG, selector & 0xfffc); 125428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#ifdef TARGET_X86_64 125528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->hflags & HF_LMA_MASK) { 125628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t e3; 125728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e3 = cpu_ldl_kernel(env, ptr + 8); 125828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner load_seg_cache_raw_dt(&env->ldt, e1, e2); 125928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->ldt.base |= (target_ulong)e3 << 32; 126028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else 126128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 126228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner { 126328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner load_seg_cache_raw_dt(&env->ldt, e1, e2); 126428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 126528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 126628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->ldt.selector = selector; 126728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 126828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 126928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnervoid helper_ltr(CPUX86State *env, int selector) 127028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 127128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner SegmentCache *dt; 127228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t e1, e2; 127328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int index, type, entry_limit; 127428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner target_ulong ptr; 127528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 127628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner selector &= 0xffff; 127728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((selector & 0xfffc) == 0) { 127828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* NULL selector case: invalid TR */ 127928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->tr.base = 0; 128028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->tr.limit = 0; 128128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->tr.flags = 0; 128228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 128328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (selector & 0x4) 128428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 128528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dt = &env->gdt; 128628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner index = selector & ~7; 128728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#ifdef TARGET_X86_64 128828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->hflags & HF_LMA_MASK) 128928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner entry_limit = 15; 129028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner else 129128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 129228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner entry_limit = 7; 129328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((index + entry_limit) > dt->limit) 129428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 129528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ptr = dt->base + index; 129628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e1 = cpu_ldl_kernel(env, ptr); 129728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e2 = cpu_ldl_kernel(env, ptr + 4); 129828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner type = (e2 >> DESC_TYPE_SHIFT) & 0xf; 129928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((e2 & DESC_S_MASK) || 130028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner (type != 1 && type != 9)) 130128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 130228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_P_MASK)) 130328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0B_NOSEG, selector & 0xfffc); 130428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#ifdef TARGET_X86_64 130528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->hflags & HF_LMA_MASK) { 130628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t e3, e4; 130728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e3 = cpu_ldl_kernel(env, ptr + 8); 130828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e4 = cpu_ldl_kernel(env, ptr + 12); 130928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((e4 >> DESC_TYPE_SHIFT) & 0xf) 131028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 131128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner load_seg_cache_raw_dt(&env->tr, e1, e2); 131228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->tr.base |= (target_ulong)e3 << 32; 131328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else 131428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 131528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner { 131628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner load_seg_cache_raw_dt(&env->tr, e1, e2); 131728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 131828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e2 |= DESC_TSS_BUSY_MASK; 131928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stl_kernel(env, ptr + 4, e2); 132028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 132128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->tr.selector = selector; 132228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 132328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 132428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner/* only works if protected mode and not VM86. seg_reg must be != R_CS */ 132528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnervoid helper_load_seg(CPUX86State *env, int seg_reg, int selector) 132628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 132728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t e1, e2; 132828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int cpl, dpl, rpl; 132928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner SegmentCache *dt; 133028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int index; 133128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner target_ulong ptr; 133228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 133328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner selector &= 0xffff; 133428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpl = env->hflags & HF_CPL_MASK; 133528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((selector & 0xfffc) == 0) { 133628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* null selector case */ 133728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (seg_reg == R_SS 133828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#ifdef TARGET_X86_64 133928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner && (!(env->hflags & HF_CS64_MASK) || cpl == 3) 134028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 134128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ) 134228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, 0); 134328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, seg_reg, selector, 0, 0, 0); 134428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 134528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 134628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (selector & 0x4) 134728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dt = &env->ldt; 134828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner else 134928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dt = &env->gdt; 135028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner index = selector & ~7; 135128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((index + 7) > dt->limit) 135228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 135328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ptr = dt->base + index; 135428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e1 = cpu_ldl_kernel(env, ptr); 135528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e2 = cpu_ldl_kernel(env, ptr + 4); 135628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 135728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_S_MASK)) 135828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 135928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner rpl = selector & 3; 136028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dpl = (e2 >> DESC_DPL_SHIFT) & 3; 136128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (seg_reg == R_SS) { 136228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* must be writable segment */ 136328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((e2 & DESC_CS_MASK) || !(e2 & DESC_W_MASK)) 136428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 136528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (rpl != cpl || dpl != cpl) 136628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 136728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 136828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* must be readable segment */ 136928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((e2 & (DESC_CS_MASK | DESC_R_MASK)) == DESC_CS_MASK) 137028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 137128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 137228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_CS_MASK) || !(e2 & DESC_C_MASK)) { 137328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* if not conforming code, test rights */ 137428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dpl < cpl || dpl < rpl) 137528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 137628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 137728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 137828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 137928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_P_MASK)) { 138028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (seg_reg == R_SS) 138128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0C_STACK, selector & 0xfffc); 138228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner else 138328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0B_NOSEG, selector & 0xfffc); 138428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 138528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 138628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* set the access bit if not already set */ 138728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_A_MASK)) { 138828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e2 |= DESC_A_MASK; 138928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_stl_kernel(env, ptr + 4, e2); 139028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 139128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 139228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, seg_reg, selector, 139328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner get_seg_base(e1, e2), 139428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner get_seg_limit(e1, e2), 139528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e2); 139628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#if 0 139728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner qemu_log("load_seg: sel=0x%04x base=0x%08lx limit=0x%08lx flags=%08x\n", 139828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner selector, (unsigned long)sc->base, sc->limit, sc->flags); 139928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 140028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 140128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 140228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 140328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner/* protected mode jump */ 140428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnervoid helper_ljmp_protected(CPUX86State *env, 140528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int new_cs, target_ulong new_eip, 140628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int next_eip_addend) 140728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 140828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int gate_cs, type; 140928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t e1, e2, cpl, dpl, rpl, limit; 141028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner target_ulong next_eip; 141128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 141228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((new_cs & 0xfffc) == 0) 141328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, 0); 141428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (load_segment(env, &e1, &e2, new_cs) != 0) 141528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); 141628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpl = env->hflags & HF_CPL_MASK; 141728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (e2 & DESC_S_MASK) { 141828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_CS_MASK)) 141928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); 142028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dpl = (e2 >> DESC_DPL_SHIFT) & 3; 142128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (e2 & DESC_C_MASK) { 142228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* conforming code segment */ 142328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dpl > cpl) 142428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); 142528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 142628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* non conforming code segment */ 142728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner rpl = new_cs & 3; 142828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (rpl > cpl) 142928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); 143028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dpl != cpl) 143128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); 143228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 143328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_P_MASK)) 143428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0B_NOSEG, new_cs & 0xfffc); 143528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner limit = get_seg_limit(e1, e2); 143628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (new_eip > limit && 143728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner !(env->hflags & HF_LMA_MASK) && !(e2 & DESC_L_MASK)) 143828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); 143928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_CS, (new_cs & 0xfffc) | cpl, 144028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner get_seg_base(e1, e2), limit, e2); 144128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner EIP = new_eip; 144228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 144328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* jump to call or task gate */ 144428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dpl = (e2 >> DESC_DPL_SHIFT) & 3; 144528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner rpl = new_cs & 3; 144628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpl = env->hflags & HF_CPL_MASK; 144728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner type = (e2 >> DESC_TYPE_SHIFT) & 0xf; 144828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner switch(type) { 144928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 1: /* 286 TSS */ 145028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 9: /* 386 TSS */ 145128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 5: /* task gate */ 145228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dpl < cpl || dpl < rpl) 145328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); 145428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner next_eip = env->eip + next_eip_addend; 145528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner switch_tss(env, new_cs, e1, e2, SWITCH_TSS_JMP, next_eip); 145628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner CC_OP = CC_OP_EFLAGS; 145728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner break; 145828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 4: /* 286 call gate */ 145928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 12: /* 386 call gate */ 146028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((dpl < cpl) || (dpl < rpl)) 146128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); 146228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_P_MASK)) 146328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0B_NOSEG, new_cs & 0xfffc); 146428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner gate_cs = e1 >> 16; 146528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_eip = (e1 & 0xffff); 146628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (type == 12) 146728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_eip |= (e2 & 0xffff0000); 146828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (load_segment(env, &e1, &e2, gate_cs) != 0) 146928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, gate_cs & 0xfffc); 147028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dpl = (e2 >> DESC_DPL_SHIFT) & 3; 147128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* must be code segment */ 147228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (((e2 & (DESC_S_MASK | DESC_CS_MASK)) != 147328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner (DESC_S_MASK | DESC_CS_MASK))) 147428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, gate_cs & 0xfffc); 147528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (((e2 & DESC_C_MASK) && (dpl > cpl)) || 147628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner (!(e2 & DESC_C_MASK) && (dpl != cpl))) 147728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, gate_cs & 0xfffc); 147828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_P_MASK)) 147928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, gate_cs & 0xfffc); 148028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner limit = get_seg_limit(e1, e2); 148128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (new_eip > limit) 148228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, 0); 148328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_CS, (gate_cs & 0xfffc) | cpl, 148428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner get_seg_base(e1, e2), limit, e2); 148528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner EIP = new_eip; 148628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner break; 148728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner default: 148828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); 148928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner break; 149028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 149128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 149228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 149328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 149428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner/* real mode call */ 149528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnervoid helper_lcall_real(CPUX86State *env, 149628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int new_cs, target_ulong new_eip1, 149728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int shift, int next_eip) 149828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 149928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int new_eip; 150028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t esp, esp_mask; 150128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner target_ulong ssp; 150228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 150328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_eip = new_eip1; 150428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp = ESP; 150528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner esp_mask = get_sp_mask(env->segs[R_SS].flags); 150628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ssp = env->segs[R_SS].base; 150728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (shift) { 150828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHL(ssp, esp, esp_mask, env->segs[R_CS].selector); 150928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHL(ssp, esp, esp_mask, next_eip); 151028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 151128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHW(ssp, esp, esp_mask, env->segs[R_CS].selector); 151228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHW(ssp, esp, esp_mask, next_eip); 151328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 151428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 151528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner SET_ESP(esp, esp_mask); 151628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->eip = new_eip; 151728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->segs[R_CS].selector = new_cs; 151828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->segs[R_CS].base = (new_cs << 4); 151928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 152028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 152128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner/* protected mode call */ 152228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnervoid helper_lcall_protected(CPUX86State *env, 152328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int new_cs, target_ulong new_eip, 152428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int shift, int next_eip_addend) 152528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 152628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int new_stack, i; 152728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t e1, e2, cpl, dpl, rpl, selector, offset, param_count; 152828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t ss = 0, ss_e1 = 0, ss_e2 = 0, sp, type, ss_dpl, sp_mask; 152928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t val, limit, old_sp_mask; 153028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner target_ulong ssp, old_ssp, next_eip; 153128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 153228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner next_eip = env->eip + next_eip_addend; 153328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner LOG_PCALL("lcall %04x:%08x s=%d\n", new_cs, (uint32_t)new_eip, shift); 153428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner LOG_PCALL_STATE(env); 153528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((new_cs & 0xfffc) == 0) 153628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, 0); 153728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (load_segment(env, &e1, &e2, new_cs) != 0) 153828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); 153928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpl = env->hflags & HF_CPL_MASK; 154028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner LOG_PCALL("desc=%08x:%08x\n", e1, e2); 154128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (e2 & DESC_S_MASK) { 154228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_CS_MASK)) 154328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); 154428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dpl = (e2 >> DESC_DPL_SHIFT) & 3; 154528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (e2 & DESC_C_MASK) { 154628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* conforming code segment */ 154728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dpl > cpl) 154828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); 154928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 155028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* non conforming code segment */ 155128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner rpl = new_cs & 3; 155228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (rpl > cpl) 155328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); 155428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dpl != cpl) 155528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); 155628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 155728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_P_MASK)) 155828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0B_NOSEG, new_cs & 0xfffc); 155928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 156028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#ifdef TARGET_X86_64 156128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* XXX: check 16/32 bit cases in long mode */ 156228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (shift == 2) { 156328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner target_ulong rsp; 156428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* 64 bit case */ 156528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner rsp = ESP; 156628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHQ(rsp, env->segs[R_CS].selector); 156728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHQ(rsp, next_eip); 156828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* from this point, not restartable */ 156928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ESP = rsp; 157028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_CS, (new_cs & 0xfffc) | cpl, 157128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner get_seg_base(e1, e2), 157228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner get_seg_limit(e1, e2), e2); 157328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner EIP = new_eip; 157428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else 157528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 157628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner { 157728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sp = ESP; 157828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sp_mask = get_sp_mask(env->segs[R_SS].flags); 157928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ssp = env->segs[R_SS].base; 158028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (shift) { 158128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHL(ssp, sp, sp_mask, env->segs[R_CS].selector); 158228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHL(ssp, sp, sp_mask, next_eip); 158328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 158428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHW(ssp, sp, sp_mask, env->segs[R_CS].selector); 158528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHW(ssp, sp, sp_mask, next_eip); 158628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 158728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 158828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner limit = get_seg_limit(e1, e2); 158928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (new_eip > limit) 159028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); 159128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* from this point, not restartable */ 159228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner SET_ESP(sp, sp_mask); 159328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_CS, (new_cs & 0xfffc) | cpl, 159428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner get_seg_base(e1, e2), limit, e2); 159528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner EIP = new_eip; 159628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 159728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 159828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* check gate type */ 159928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner type = (e2 >> DESC_TYPE_SHIFT) & 0x1f; 160028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dpl = (e2 >> DESC_DPL_SHIFT) & 3; 160128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner rpl = new_cs & 3; 160228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner switch(type) { 160328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 1: /* available 286 TSS */ 160428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 9: /* available 386 TSS */ 160528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 5: /* task gate */ 160628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dpl < cpl || dpl < rpl) 160728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); 160828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner switch_tss(env, new_cs, e1, e2, SWITCH_TSS_CALL, next_eip); 160928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner CC_OP = CC_OP_EFLAGS; 161028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner return; 161128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 4: /* 286 call gate */ 161228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 12: /* 386 call gate */ 161328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner break; 161428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner default: 161528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); 161628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner break; 161728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 161828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner shift = type >> 3; 161928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 162028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dpl < cpl || dpl < rpl) 162128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); 162228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* check valid bit */ 162328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_P_MASK)) 162428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0B_NOSEG, new_cs & 0xfffc); 162528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner selector = e1 >> 16; 162628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner offset = (e2 & 0xffff0000) | (e1 & 0x0000ffff); 162728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner param_count = e2 & 0x1f; 162828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((selector & 0xfffc) == 0) 162928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, 0); 163028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 163128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (load_segment(env, &e1, &e2, selector) != 0) 163228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 163328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_S_MASK) || !(e2 & (DESC_CS_MASK))) 163428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 163528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dpl = (e2 >> DESC_DPL_SHIFT) & 3; 163628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dpl > cpl) 163728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); 163828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_P_MASK)) 163928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0B_NOSEG, selector & 0xfffc); 164028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 164128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_C_MASK) && dpl < cpl) { 164228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* to inner privilege */ 164328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner get_ss_esp_from_tss(env, &ss, &sp, dpl); 164428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner LOG_PCALL("new ss:esp=%04x:%08x param_count=%d ESP=" TARGET_FMT_lx "\n", 164528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ss, sp, param_count, ESP); 164628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((ss & 0xfffc) == 0) 164728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, ss & 0xfffc); 164828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((ss & 3) != dpl) 164928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, ss & 0xfffc); 165028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (load_segment(env, &ss_e1, &ss_e2, ss) != 0) 165128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, ss & 0xfffc); 165228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ss_dpl = (ss_e2 >> DESC_DPL_SHIFT) & 3; 165328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (ss_dpl != dpl) 165428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, ss & 0xfffc); 165528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(ss_e2 & DESC_S_MASK) || 165628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner (ss_e2 & DESC_CS_MASK) || 165728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner !(ss_e2 & DESC_W_MASK)) 165828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, ss & 0xfffc); 165928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(ss_e2 & DESC_P_MASK)) 166028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, ss & 0xfffc); 166128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 166228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner // push_size = ((param_count * 2) + 8) << shift; 166328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 166428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner old_sp_mask = get_sp_mask(env->segs[R_SS].flags); 166528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner old_ssp = env->segs[R_SS].base; 166628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 166728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sp_mask = get_sp_mask(ss_e2); 166828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ssp = get_seg_base(ss_e1, ss_e2); 166928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (shift) { 167028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHL(ssp, sp, sp_mask, env->segs[R_SS].selector); 167128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHL(ssp, sp, sp_mask, ESP); 167228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner for(i = param_count - 1; i >= 0; i--) { 167328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner val = cpu_ldl_kernel(env, old_ssp + ((ESP + i * 4) & old_sp_mask)); 167428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHL(ssp, sp, sp_mask, val); 167528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 167628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 167728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHW(ssp, sp, sp_mask, env->segs[R_SS].selector); 167828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHW(ssp, sp, sp_mask, ESP); 167928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner for(i = param_count - 1; i >= 0; i--) { 168028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner val = cpu_lduw_kernel(env, old_ssp + ((ESP + i * 2) & old_sp_mask)); 168128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHW(ssp, sp, sp_mask, val); 168228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 168328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 168428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_stack = 1; 168528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 168628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* to same privilege */ 168728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sp = ESP; 168828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sp_mask = get_sp_mask(env->segs[R_SS].flags); 168928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ssp = env->segs[R_SS].base; 169028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner // push_size = (4 << shift); 169128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_stack = 0; 169228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 169328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 169428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (shift) { 169528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHL(ssp, sp, sp_mask, env->segs[R_CS].selector); 169628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHL(ssp, sp, sp_mask, next_eip); 169728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 169828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHW(ssp, sp, sp_mask, env->segs[R_CS].selector); 169928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner PUSHW(ssp, sp, sp_mask, next_eip); 170028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 170128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 170228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* from this point, not restartable */ 170328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 170428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (new_stack) { 170528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ss = (ss & ~3) | dpl; 170628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_SS, ss, 170728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ssp, 170828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner get_seg_limit(ss_e1, ss_e2), 170928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ss_e2); 171028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 171128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 171228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner selector = (selector & ~3) | dpl; 171328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_CS, selector, 171428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner get_seg_base(e1, e2), 171528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner get_seg_limit(e1, e2), 171628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e2); 171728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_set_cpl(env, dpl); 171828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner SET_ESP(sp, sp_mask); 171928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner EIP = offset; 172028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 172128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 172228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 172328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner/* real and vm86 mode iret */ 172428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnervoid helper_iret_real(CPUX86State *env, int shift) 172528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 172628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t sp, new_cs, new_eip, new_eflags, sp_mask; 172728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner target_ulong ssp; 172828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int eflags_mask; 172928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 173028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sp_mask = 0xffff; /* XXXX: use SS segment size ? */ 173128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sp = ESP; 173228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ssp = env->segs[R_SS].base; 173328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (shift == 1) { 173428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* 32 bits */ 173528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPL(ssp, sp, sp_mask, new_eip); 173628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPL(ssp, sp, sp_mask, new_cs); 173728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_cs &= 0xffff; 173828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPL(ssp, sp, sp_mask, new_eflags); 173928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 174028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* 16 bits */ 174128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPW(ssp, sp, sp_mask, new_eip); 174228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPW(ssp, sp, sp_mask, new_cs); 174328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPW(ssp, sp, sp_mask, new_eflags); 174428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 174528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ESP = (ESP & ~sp_mask) | (sp & sp_mask); 174628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->segs[R_CS].selector = new_cs; 174728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->segs[R_CS].base = (new_cs << 4); 174828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->eip = new_eip; 174928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->eflags & VM_MASK) 175028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner eflags_mask = TF_MASK | AC_MASK | ID_MASK | IF_MASK | RF_MASK | NT_MASK; 175128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner else 175228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner eflags_mask = TF_MASK | AC_MASK | ID_MASK | IF_MASK | IOPL_MASK | RF_MASK | NT_MASK; 175328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (shift == 0) 175428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner eflags_mask &= 0xffff; 175528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_load_eflags(env, new_eflags, eflags_mask); 175628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->hflags2 &= ~HF2_NMI_MASK; 175728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 175828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 175928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnerstatic inline void validate_seg(CPUX86State *env, int seg_reg, int cpl) 176028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 176128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int dpl; 176228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t e2; 176328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 176428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* XXX: on x86_64, we do not want to nullify FS and GS because 176528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner they may still contain a valid base. I would be interested to 176628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner know how a real x86_64 CPU behaves */ 176728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((seg_reg == R_FS || seg_reg == R_GS) && 176828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner (env->segs[seg_reg].selector & 0xfffc) == 0) 176928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner return; 177028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 177128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e2 = env->segs[seg_reg].flags; 177228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dpl = (e2 >> DESC_DPL_SHIFT) & 3; 177328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_CS_MASK) || !(e2 & DESC_C_MASK)) { 177428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* data or non conforming code segment */ 177528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dpl < cpl) { 177628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, seg_reg, 0, 0, 0, 0); 177728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 177828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 177928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 178028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 178128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner/* protected mode iret */ 178228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnerstatic inline void helper_ret_protected(CPUX86State *env, 178328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int shift, int is_iret, int addend) 178428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 178528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t new_cs, new_eflags, new_ss; 178628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t new_es, new_ds, new_fs, new_gs; 178728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t e1, e2, ss_e1, ss_e2; 178828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int cpl, dpl, rpl, eflags_mask, iopl; 178928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner target_ulong ssp, sp, new_eip, new_esp, sp_mask; 179028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 179128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#ifdef TARGET_X86_64 179228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (shift == 2) 179328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sp_mask = -1; 179428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner else 179528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 179628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sp_mask = get_sp_mask(env->segs[R_SS].flags); 179728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sp = ESP; 179828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ssp = env->segs[R_SS].base; 179928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_eflags = 0; /* avoid warning */ 180028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#ifdef TARGET_X86_64 180128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (shift == 2) { 180228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPQ(sp, new_eip); 180328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPQ(sp, new_cs); 180428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_cs &= 0xffff; 180528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (is_iret) { 180628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPQ(sp, new_eflags); 180728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 180828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else 180928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 181028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (shift == 1) { 181128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* 32 bits */ 181228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPL(ssp, sp, sp_mask, new_eip); 181328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPL(ssp, sp, sp_mask, new_cs); 181428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_cs &= 0xffff; 181528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (is_iret) { 181628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPL(ssp, sp, sp_mask, new_eflags); 181728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (new_eflags & VM_MASK) 181828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner goto return_to_vm86; 181928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 182028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 182128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* 16 bits */ 182228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPW(ssp, sp, sp_mask, new_eip); 182328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPW(ssp, sp, sp_mask, new_cs); 182428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (is_iret) 182528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPW(ssp, sp, sp_mask, new_eflags); 182628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 182728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner LOG_PCALL("lret new %04x:" TARGET_FMT_lx " s=%d addend=0x%x\n", 182828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_cs, new_eip, shift, addend); 182928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner LOG_PCALL_STATE(env); 183028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((new_cs & 0xfffc) == 0) 183128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); 183228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (load_segment(env, &e1, &e2, new_cs) != 0) 183328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); 183428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_S_MASK) || 183528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner !(e2 & DESC_CS_MASK)) 183628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); 183728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpl = env->hflags & HF_CPL_MASK; 183828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner rpl = new_cs & 3; 183928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (rpl < cpl) 184028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); 184128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dpl = (e2 >> DESC_DPL_SHIFT) & 3; 184228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (e2 & DESC_C_MASK) { 184328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dpl > rpl) 184428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); 184528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 184628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dpl != rpl) 184728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); 184828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 184928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_P_MASK)) 185028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0B_NOSEG, new_cs & 0xfffc); 185128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 185228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sp += addend; 185328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (rpl == cpl && (!(env->hflags & HF_CS64_MASK) || 185428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ((env->hflags & HF_CS64_MASK) && !is_iret))) { 185528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* return to same privilege level */ 185628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_CS, new_cs, 185728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner get_seg_base(e1, e2), 185828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner get_seg_limit(e1, e2), 185928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e2); 186028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 186128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* return to different privilege level */ 186228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#ifdef TARGET_X86_64 186328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (shift == 2) { 186428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPQ(sp, new_esp); 186528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPQ(sp, new_ss); 186628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_ss &= 0xffff; 186728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else 186828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 186928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (shift == 1) { 187028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* 32 bits */ 187128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPL(ssp, sp, sp_mask, new_esp); 187228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPL(ssp, sp, sp_mask, new_ss); 187328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_ss &= 0xffff; 187428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 187528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* 16 bits */ 187628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPW(ssp, sp, sp_mask, new_esp); 187728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPW(ssp, sp, sp_mask, new_ss); 187828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 187928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner LOG_PCALL("new ss:esp=%04x:" TARGET_FMT_lx "\n", 188028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner new_ss, new_esp); 188128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((new_ss & 0xfffc) == 0) { 188228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#ifdef TARGET_X86_64 188328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* NULL ss is allowed in long mode if cpl != 3*/ 188428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* XXX: test CS64 ? */ 188528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((env->hflags & HF_LMA_MASK) && rpl != 3) { 188628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_SS, new_ss, 188728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 0, 0xffffffff, 188828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | 188928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_S_MASK | (rpl << DESC_DPL_SHIFT) | 189028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_W_MASK | DESC_A_MASK); 189128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ss_e2 = DESC_B_MASK; /* XXX: should not be needed ? */ 189228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else 189328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 189428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner { 189528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, 0); 189628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 189728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 189828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((new_ss & 3) != rpl) 189928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_ss & 0xfffc); 190028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (load_segment(env, &ss_e1, &ss_e2, new_ss) != 0) 190128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_ss & 0xfffc); 190228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(ss_e2 & DESC_S_MASK) || 190328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner (ss_e2 & DESC_CS_MASK) || 190428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner !(ss_e2 & DESC_W_MASK)) 190528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_ss & 0xfffc); 190628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dpl = (ss_e2 >> DESC_DPL_SHIFT) & 3; 190728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dpl != rpl) 190828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, new_ss & 0xfffc); 190928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(ss_e2 & DESC_P_MASK)) 191028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0B_NOSEG, new_ss & 0xfffc); 191128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_SS, new_ss, 191228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner get_seg_base(ss_e1, ss_e2), 191328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner get_seg_limit(ss_e1, ss_e2), 191428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ss_e2); 191528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 191628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 191728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_CS, new_cs, 191828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner get_seg_base(e1, e2), 191928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner get_seg_limit(e1, e2), 192028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner e2); 192128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_set_cpl(env, rpl); 192228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sp = new_esp; 192328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#ifdef TARGET_X86_64 192428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->hflags & HF_CS64_MASK) 192528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sp_mask = -1; 192628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner else 192728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 192828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sp_mask = get_sp_mask(ss_e2); 192928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 193028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* validate data segments */ 193128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner validate_seg(env, R_ES, rpl); 193228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner validate_seg(env, R_DS, rpl); 193328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner validate_seg(env, R_FS, rpl); 193428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner validate_seg(env, R_GS, rpl); 193528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 193628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner sp += addend; 193728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 193828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner SET_ESP(sp, sp_mask); 193928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->eip = new_eip; 194028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (is_iret) { 194128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* NOTE: 'cpl' is the _old_ CPL */ 194228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner eflags_mask = TF_MASK | AC_MASK | ID_MASK | RF_MASK | NT_MASK; 194328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (cpl == 0) 194428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner eflags_mask |= IOPL_MASK; 194528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner iopl = (env->eflags >> IOPL_SHIFT) & 3; 194628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (cpl <= iopl) 194728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner eflags_mask |= IF_MASK; 194828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (shift == 0) 194928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner eflags_mask &= 0xffff; 195028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_load_eflags(env, new_eflags, eflags_mask); 195128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 195228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner return; 195328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 195428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner return_to_vm86: 195528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPL(ssp, sp, sp_mask, new_esp); 195628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPL(ssp, sp, sp_mask, new_ss); 195728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPL(ssp, sp, sp_mask, new_es); 195828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPL(ssp, sp, sp_mask, new_ds); 195928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPL(ssp, sp, sp_mask, new_fs); 196028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner POPL(ssp, sp, sp_mask, new_gs); 196128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 196228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* modify processor state */ 196328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_load_eflags(env, new_eflags, TF_MASK | AC_MASK | ID_MASK | 196428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner IF_MASK | IOPL_MASK | VM_MASK | NT_MASK | VIF_MASK | VIP_MASK); 196528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner load_seg_vm(env, R_CS, new_cs & 0xffff); 196628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_set_cpl(env, 3); 196728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner load_seg_vm(env, R_SS, new_ss & 0xffff); 196828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner load_seg_vm(env, R_ES, new_es & 0xffff); 196928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner load_seg_vm(env, R_DS, new_ds & 0xffff); 197028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner load_seg_vm(env, R_FS, new_fs & 0xffff); 197128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner load_seg_vm(env, R_GS, new_gs & 0xffff); 197228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 197328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->eip = new_eip & 0xffff; 197428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ESP = new_esp; 197528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 197628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 197728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnervoid helper_iret_protected(CPUX86State *env, int shift, int next_eip) 197828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 197928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int tss_selector, type; 198028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t e1, e2; 198128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 198228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* specific case for TSS */ 198328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->eflags & NT_MASK) { 198428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#ifdef TARGET_X86_64 198528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->hflags & HF_LMA_MASK) 198628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, 0); 198728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 198828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner tss_selector = cpu_lduw_kernel(env, env->tr.base + 0); 198928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (tss_selector & 4) 199028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, tss_selector & 0xfffc); 199128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (load_segment(env, &e1, &e2, tss_selector) != 0) 199228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, tss_selector & 0xfffc); 199328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner type = (e2 >> DESC_TYPE_SHIFT) & 0x17; 199428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* NOTE: we check both segment and busy TSS */ 199528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (type != 3) 199628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0A_TSS, tss_selector & 0xfffc); 199728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner switch_tss(env, tss_selector, e1, e2, SWITCH_TSS_IRET, next_eip); 199828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 199928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner helper_ret_protected(env, shift, 1, 0); 200028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 200128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->hflags2 &= ~HF2_NMI_MASK; 200228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 200328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 200428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnervoid helper_lret_protected(CPUX86State *env, int shift, int addend) 200528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 200628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner helper_ret_protected(env, shift, 0, addend); 200728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 200828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 200928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnervoid helper_sysenter(CPUX86State *env) 201028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 201128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->sysenter_cs == 0) { 201228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, 0); 201328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 201428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner env->eflags &= ~(VM_MASK | IF_MASK | RF_MASK); 201528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_set_cpl(env, 0); 201628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 201728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#ifdef TARGET_X86_64 201828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->hflags & HF_LMA_MASK) { 201928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_CS, env->sysenter_cs & 0xfffc, 202028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 0, 0xffffffff, 202128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | 202228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_S_MASK | 202328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK | DESC_L_MASK); 202428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else 202528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 202628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner { 202728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_CS, env->sysenter_cs & 0xfffc, 202828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 0, 0xffffffff, 202928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | 203028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_S_MASK | 203128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK); 203228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 203328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_SS, (env->sysenter_cs + 8) & 0xfffc, 203428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 0, 0xffffffff, 203528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | 203628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_S_MASK | 203728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_W_MASK | DESC_A_MASK); 203828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ESP = env->sysenter_esp; 203928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner EIP = env->sysenter_eip; 204028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 204128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 204228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnervoid helper_sysexit(CPUX86State *env, int dflag) 204328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 204428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int cpl; 204528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 204628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpl = env->hflags & HF_CPL_MASK; 204728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (env->sysenter_cs == 0 || cpl != 0) { 204828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner raise_exception_err(env, EXCP0D_GPF, 0); 204928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 205028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_set_cpl(env, 3); 205128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#ifdef TARGET_X86_64 205228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dflag == 2) { 205328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_CS, ((env->sysenter_cs + 32) & 0xfffc) | 3, 205428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 0, 0xffffffff, 205528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | 205628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_S_MASK | (3 << DESC_DPL_SHIFT) | 205728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK | DESC_L_MASK); 205828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_SS, ((env->sysenter_cs + 40) & 0xfffc) | 3, 205928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 0, 0xffffffff, 206028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | 206128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_S_MASK | (3 << DESC_DPL_SHIFT) | 206228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_W_MASK | DESC_A_MASK); 206328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else 206428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner#endif 206528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner { 206628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_CS, ((env->sysenter_cs + 16) & 0xfffc) | 3, 206728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 0, 0xffffffff, 206828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | 206928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_S_MASK | (3 << DESC_DPL_SHIFT) | 207028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK); 207128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpu_x86_load_seg_cache(env, R_SS, ((env->sysenter_cs + 24) & 0xfffc) | 3, 207228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 0, 0xffffffff, 207328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | 207428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_S_MASK | (3 << DESC_DPL_SHIFT) | 207528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner DESC_W_MASK | DESC_A_MASK); 207628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 207728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner ESP = ECX; 207828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner EIP = EDX; 207928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 208028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 208128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnertarget_ulong helper_lsl(CPUX86State *env, target_ulong selector1) 208228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 208328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner unsigned int limit; 208428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t e1, e2, eflags, selector; 208528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int rpl, dpl, cpl, type; 208628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 208728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner selector = selector1 & 0xffff; 208828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner eflags = helper_cc_compute_all(env, CC_OP); 208928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((selector & 0xfffc) == 0) 209028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner goto fail; 209128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (load_segment(env, &e1, &e2, selector) != 0) 209228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner goto fail; 209328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner rpl = selector & 3; 209428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dpl = (e2 >> DESC_DPL_SHIFT) & 3; 209528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpl = env->hflags & HF_CPL_MASK; 209628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (e2 & DESC_S_MASK) { 209728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((e2 & DESC_CS_MASK) && (e2 & DESC_C_MASK)) { 209828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* conforming */ 209928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 210028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dpl < cpl || dpl < rpl) 210128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner goto fail; 210228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 210328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 210428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner type = (e2 >> DESC_TYPE_SHIFT) & 0xf; 210528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner switch(type) { 210628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 1: 210728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 2: 210828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 3: 210928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 9: 211028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 11: 211128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner break; 211228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner default: 211328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner goto fail; 211428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 211528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dpl < cpl || dpl < rpl) { 211628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner fail: 211728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner CC_SRC = eflags & ~CC_Z; 211828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner return 0; 211928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 212028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 212128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner limit = get_seg_limit(e1, e2); 212228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner CC_SRC = eflags | CC_Z; 212328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner return limit; 212428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 212528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 212628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnertarget_ulong helper_lar(CPUX86State *env, target_ulong selector1) 212728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 212828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t e1, e2, eflags, selector; 212928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int rpl, dpl, cpl, type; 213028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 213128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner selector = selector1 & 0xffff; 213228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner eflags = helper_cc_compute_all(env, CC_OP); 213328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((selector & 0xfffc) == 0) 213428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner goto fail; 213528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (load_segment(env, &e1, &e2, selector) != 0) 213628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner goto fail; 213728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner rpl = selector & 3; 213828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dpl = (e2 >> DESC_DPL_SHIFT) & 3; 213928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpl = env->hflags & HF_CPL_MASK; 214028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (e2 & DESC_S_MASK) { 214128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((e2 & DESC_CS_MASK) && (e2 & DESC_C_MASK)) { 214228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner /* conforming */ 214328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 214428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dpl < cpl || dpl < rpl) 214528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner goto fail; 214628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 214728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 214828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner type = (e2 >> DESC_TYPE_SHIFT) & 0xf; 214928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner switch(type) { 215028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 1: 215128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 2: 215228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 3: 215328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 4: 215428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 5: 215528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 9: 215628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 11: 215728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner case 12: 215828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner break; 215928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner default: 216028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner goto fail; 216128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 216228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dpl < cpl || dpl < rpl) { 216328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner fail: 216428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner CC_SRC = eflags & ~CC_Z; 216528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner return 0; 216628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 216728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 216828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner CC_SRC = eflags | CC_Z; 216928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner return e2 & 0x00f0ff00; 217028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 217128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 217228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnervoid helper_verr(CPUX86State *env, target_ulong selector1) 217328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 217428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t e1, e2, eflags, selector; 217528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int rpl, dpl, cpl; 217628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 217728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner selector = selector1 & 0xffff; 217828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner eflags = helper_cc_compute_all(env, CC_OP); 217928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((selector & 0xfffc) == 0) 218028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner goto fail; 218128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (load_segment(env, &e1, &e2, selector) != 0) 218228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner goto fail; 218328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_S_MASK)) 218428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner goto fail; 218528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner rpl = selector & 3; 218628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dpl = (e2 >> DESC_DPL_SHIFT) & 3; 218728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpl = env->hflags & HF_CPL_MASK; 218828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (e2 & DESC_CS_MASK) { 218928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_R_MASK)) 219028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner goto fail; 219128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_C_MASK)) { 219228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dpl < cpl || dpl < rpl) 219328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner goto fail; 219428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 219528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 219628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dpl < cpl || dpl < rpl) { 219728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner fail: 219828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner CC_SRC = eflags & ~CC_Z; 219928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner return; 220028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 220128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 220228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner CC_SRC = eflags | CC_Z; 220328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 220428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 220528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turnervoid helper_verw(CPUX86State *env, target_ulong selector1) 220628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner{ 220728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner uint32_t e1, e2, eflags, selector; 220828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner int rpl, dpl, cpl; 220928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner 221028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner selector = selector1 & 0xffff; 221128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner eflags = helper_cc_compute_all(env, CC_OP); 221228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if ((selector & 0xfffc) == 0) 221328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner goto fail; 221428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (load_segment(env, &e1, &e2, selector) != 0) 221528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner goto fail; 221628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_S_MASK)) 221728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner goto fail; 221828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner rpl = selector & 3; 221928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner dpl = (e2 >> DESC_DPL_SHIFT) & 3; 222028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner cpl = env->hflags & HF_CPL_MASK; 222128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (e2 & DESC_CS_MASK) { 222228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner goto fail; 222328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } else { 222428f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (dpl < cpl || dpl < rpl) 222528f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner goto fail; 222628f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner if (!(e2 & DESC_W_MASK)) { 222728f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner fail: 222828f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner CC_SRC = eflags & ~CC_Z; 222928f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner return; 223028f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 223128f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner } 223228f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner CC_SRC = eflags | CC_Z; 223328f41828f754f73cf3b48aa6476f4a1856c96b92David 'Digit' Turner} 2234