emulate.c revision 544c6761bb05a1dd19a39cb9bed096273f9bdb36
1bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard/* 2bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * This program is free software; you can redistribute it and/or modify 3bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * it under the terms of the GNU General Public License, version 2, as 4bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * published by the Free Software Foundation. 5bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * 6bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * This program is distributed in the hope that it will be useful, 7bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * but WITHOUT ANY WARRANTY; without even the implied warranty of 8bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 9bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * GNU General Public License for more details. 10bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * 11bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * You should have received a copy of the GNU General Public License 12bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * along with this program; if not, write to the Free Software 13bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 14bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * 15bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * Copyright IBM Corp. 2007 16bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * 17bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * Authors: Hollis Blanchard <hollisb@us.ibm.com> 18bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard */ 19bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 20bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard#include <linux/jiffies.h> 21544c6761bb05a1dd19a39cb9bed096273f9bdb36Alexander Graf#include <linux/hrtimer.h> 22bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard#include <linux/types.h> 23bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard#include <linux/string.h> 24bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard#include <linux/kvm_host.h> 25bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 2675f74f0dbe086c239b4b0cc5ed75b903ea3e663fHollis Blanchard#include <asm/reg.h> 27bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard#include <asm/time.h> 28bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard#include <asm/byteorder.h> 29bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard#include <asm/kvm_ppc.h> 30c381a04313e7c0fb04246b1ff711e0b5726de6c0Hollis Blanchard#include <asm/disassemble.h> 3173e75b416ffcfa3a84952d8e389a0eca080f00e1Hollis Blanchard#include "timing.h" 3246f43c6ee022c3aeb9686b104234b9f27fac03c2Marcelo Tosatti#include "trace.h" 33bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 34cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_TRAP 3 35513579e3a391a3874c478a8493080822069976e8Alexander Graf#define OP_TRAP_64 2 36cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard 37cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_31_XOP_LWZX 23 38cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_31_XOP_LBZX 87 39cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_31_XOP_STWX 151 40cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_31_XOP_STBX 215 41cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_31_XOP_STBUX 247 42cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_31_XOP_LHZX 279 43cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_31_XOP_LHZUX 311 44cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_31_XOP_MFSPR 339 45cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_31_XOP_STHX 407 46cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_31_XOP_STHUX 439 47cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_31_XOP_MTSPR 467 48cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_31_XOP_DCBI 470 49cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_31_XOP_LWBRX 534 50cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_31_XOP_TLBSYNC 566 51cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_31_XOP_STWBRX 662 52cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_31_XOP_LHBRX 790 53cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_31_XOP_STHBRX 918 54cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard 55cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_LWZ 32 56cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_LWZU 33 57cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_LBZ 34 58cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_LBZU 35 59cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_STW 36 60cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_STWU 37 61cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_STB 38 62cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_STBU 39 63cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_LHZ 40 64cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_LHZU 41 65cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_STH 44 66cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard#define OP_STHU 45 67cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard 68513579e3a391a3874c478a8493080822069976e8Alexander Graf#ifdef CONFIG_PPC64 69513579e3a391a3874c478a8493080822069976e8Alexander Grafstatic int kvmppc_dec_enabled(struct kvm_vcpu *vcpu) 70513579e3a391a3874c478a8493080822069976e8Alexander Graf{ 71513579e3a391a3874c478a8493080822069976e8Alexander Graf return 1; 72513579e3a391a3874c478a8493080822069976e8Alexander Graf} 73513579e3a391a3874c478a8493080822069976e8Alexander Graf#else 74513579e3a391a3874c478a8493080822069976e8Alexander Grafstatic int kvmppc_dec_enabled(struct kvm_vcpu *vcpu) 75513579e3a391a3874c478a8493080822069976e8Alexander Graf{ 76513579e3a391a3874c478a8493080822069976e8Alexander Graf return vcpu->arch.tcr & TCR_DIE; 77513579e3a391a3874c478a8493080822069976e8Alexander Graf} 78513579e3a391a3874c478a8493080822069976e8Alexander Graf#endif 79513579e3a391a3874c478a8493080822069976e8Alexander Graf 8075f74f0dbe086c239b4b0cc5ed75b903ea3e663fHollis Blanchardvoid kvmppc_emulate_dec(struct kvm_vcpu *vcpu) 81bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard{ 82544c6761bb05a1dd19a39cb9bed096273f9bdb36Alexander Graf unsigned long dec_nsec; 839a7a9b09fee8487003df012d9af4b227b3661e4dAlexander Graf 84544c6761bb05a1dd19a39cb9bed096273f9bdb36Alexander Graf pr_debug("mtDEC: %x\n", vcpu->arch.dec); 85513579e3a391a3874c478a8493080822069976e8Alexander Graf#ifdef CONFIG_PPC64 86513579e3a391a3874c478a8493080822069976e8Alexander Graf /* POWER4+ triggers a dec interrupt if the value is < 0 */ 87513579e3a391a3874c478a8493080822069976e8Alexander Graf if (vcpu->arch.dec & 0x80000000) { 88544c6761bb05a1dd19a39cb9bed096273f9bdb36Alexander Graf hrtimer_try_to_cancel(&vcpu->arch.dec_timer); 89513579e3a391a3874c478a8493080822069976e8Alexander Graf kvmppc_core_queue_dec(vcpu); 90513579e3a391a3874c478a8493080822069976e8Alexander Graf return; 91513579e3a391a3874c478a8493080822069976e8Alexander Graf } 92513579e3a391a3874c478a8493080822069976e8Alexander Graf#endif 93513579e3a391a3874c478a8493080822069976e8Alexander Graf if (kvmppc_dec_enabled(vcpu)) { 94bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard /* The decrementer ticks at the same rate as the timebase, so 95bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * that's how we convert the guest DEC value to the number of 96bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * host ticks. */ 97bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 98544c6761bb05a1dd19a39cb9bed096273f9bdb36Alexander Graf hrtimer_try_to_cancel(&vcpu->arch.dec_timer); 99544c6761bb05a1dd19a39cb9bed096273f9bdb36Alexander Graf dec_nsec = vcpu->arch.dec; 100544c6761bb05a1dd19a39cb9bed096273f9bdb36Alexander Graf dec_nsec *= 1000; 101544c6761bb05a1dd19a39cb9bed096273f9bdb36Alexander Graf dec_nsec /= tb_ticks_per_usec; 102544c6761bb05a1dd19a39cb9bed096273f9bdb36Alexander Graf hrtimer_start(&vcpu->arch.dec_timer, ktime_set(0, dec_nsec), 103544c6761bb05a1dd19a39cb9bed096273f9bdb36Alexander Graf HRTIMER_MODE_REL); 104513579e3a391a3874c478a8493080822069976e8Alexander Graf vcpu->arch.dec_jiffies = get_tb(); 105bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard } else { 106544c6761bb05a1dd19a39cb9bed096273f9bdb36Alexander Graf hrtimer_try_to_cancel(&vcpu->arch.dec_timer); 107bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard } 108bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard} 109bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 110bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard/* XXX to do: 111bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * lhax 112bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * lhaux 113bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * lswx 114bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * lswi 115bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * stswx 116bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * stswi 117bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * lha 118bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * lhau 119bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * lmw 120bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * stmw 121bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * 122bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * XXX is_bigendian should depend on MMU mapping or MSR[LE] 123bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard */ 12475f74f0dbe086c239b4b0cc5ed75b903ea3e663fHollis Blanchard/* XXX Should probably auto-generate instruction decoding for a particular core 12575f74f0dbe086c239b4b0cc5ed75b903ea3e663fHollis Blanchard * from opcode tables in the future. */ 126bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchardint kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu) 127bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard{ 128bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard u32 inst = vcpu->arch.last_inst; 129bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard u32 ea; 130bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard int ra; 131bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard int rb; 132bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard int rs; 133bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard int rt; 134bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard int sprn; 135bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard enum emulation_result emulated = EMULATE_DONE; 136bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard int advance = 1; 137bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 13873e75b416ffcfa3a84952d8e389a0eca080f00e1Hollis Blanchard /* this default type might be overwritten by subcategories */ 13973e75b416ffcfa3a84952d8e389a0eca080f00e1Hollis Blanchard kvmppc_set_exit_type(vcpu, EMULATED_INST_EXITS); 14073e75b416ffcfa3a84952d8e389a0eca080f00e1Hollis Blanchard 141513579e3a391a3874c478a8493080822069976e8Alexander Graf pr_debug(KERN_INFO "Emulating opcode %d / %d\n", get_op(inst), get_xop(inst)); 142513579e3a391a3874c478a8493080822069976e8Alexander Graf 143bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard switch (get_op(inst)) { 144cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_TRAP: 145513579e3a391a3874c478a8493080822069976e8Alexander Graf#ifdef CONFIG_PPC64 146513579e3a391a3874c478a8493080822069976e8Alexander Graf case OP_TRAP_64: 147513579e3a391a3874c478a8493080822069976e8Alexander Graf#else 148fcfdbd266a41d3e41d17666de410a24995fde03aHollis Blanchard vcpu->arch.esr |= ESR_PTR; 149513579e3a391a3874c478a8493080822069976e8Alexander Graf#endif 1509dd921cfea734409a931ccc6eafd7f09850311e9Hollis Blanchard kvmppc_core_queue_program(vcpu); 151bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard advance = 0; 152bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 153bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 154bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard case 31: 155bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard switch (get_xop(inst)) { 156bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 157cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_31_XOP_LWZX: 158ac3cd34e4eb9e3dccaec8e586c073ba2660b322fHollis Blanchard rt = get_rt(inst); 159ac3cd34e4eb9e3dccaec8e586c073ba2660b322fHollis Blanchard emulated = kvmppc_handle_load(run, vcpu, rt, 4, 1); 160ac3cd34e4eb9e3dccaec8e586c073ba2660b322fHollis Blanchard break; 161ac3cd34e4eb9e3dccaec8e586c073ba2660b322fHollis Blanchard 162cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_31_XOP_LBZX: 163bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rt = get_rt(inst); 164bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard emulated = kvmppc_handle_load(run, vcpu, rt, 1, 1); 165bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 166bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 167cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_31_XOP_STWX: 168ac3cd34e4eb9e3dccaec8e586c073ba2660b322fHollis Blanchard rs = get_rs(inst); 169ac3cd34e4eb9e3dccaec8e586c073ba2660b322fHollis Blanchard emulated = kvmppc_handle_store(run, vcpu, 170ac3cd34e4eb9e3dccaec8e586c073ba2660b322fHollis Blanchard vcpu->arch.gpr[rs], 171ac3cd34e4eb9e3dccaec8e586c073ba2660b322fHollis Blanchard 4, 1); 172ac3cd34e4eb9e3dccaec8e586c073ba2660b322fHollis Blanchard break; 173ac3cd34e4eb9e3dccaec8e586c073ba2660b322fHollis Blanchard 174cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_31_XOP_STBX: 175bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rs = get_rs(inst); 176bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard emulated = kvmppc_handle_store(run, vcpu, 177bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.gpr[rs], 178bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 1, 1); 179bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 180bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 181cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_31_XOP_STBUX: 182bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rs = get_rs(inst); 183bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard ra = get_ra(inst); 184bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rb = get_rb(inst); 185bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 186bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard ea = vcpu->arch.gpr[rb]; 187bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard if (ra) 188bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard ea += vcpu->arch.gpr[ra]; 189bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 190bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard emulated = kvmppc_handle_store(run, vcpu, 191bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.gpr[rs], 192bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 1, 1); 193bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.gpr[rs] = ea; 194bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 195bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 196cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_31_XOP_LHZX: 197bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rt = get_rt(inst); 198bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard emulated = kvmppc_handle_load(run, vcpu, rt, 2, 1); 199bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 200bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 201cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_31_XOP_LHZUX: 202bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rt = get_rt(inst); 203bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard ra = get_ra(inst); 204bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rb = get_rb(inst); 205bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 206bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard ea = vcpu->arch.gpr[rb]; 207bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard if (ra) 208bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard ea += vcpu->arch.gpr[ra]; 209bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 210bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard emulated = kvmppc_handle_load(run, vcpu, rt, 2, 1); 211bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.gpr[ra] = ea; 212bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 213bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 214cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_31_XOP_MFSPR: 215bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard sprn = get_sprn(inst); 216bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rt = get_rt(inst); 217bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 218bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard switch (sprn) { 219bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard case SPRN_SRR0: 220bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.gpr[rt] = vcpu->arch.srr0; break; 221bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard case SPRN_SRR1: 222bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.gpr[rt] = vcpu->arch.srr1; break; 223bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard case SPRN_PVR: 224513579e3a391a3874c478a8493080822069976e8Alexander Graf vcpu->arch.gpr[rt] = vcpu->arch.pvr; break; 22506579dd9c12f36ac575460a226d2020d84a0128bLiu Yu case SPRN_PIR: 226513579e3a391a3874c478a8493080822069976e8Alexander Graf vcpu->arch.gpr[rt] = vcpu->vcpu_id; break; 227513579e3a391a3874c478a8493080822069976e8Alexander Graf case SPRN_MSSSR0: 228513579e3a391a3874c478a8493080822069976e8Alexander Graf vcpu->arch.gpr[rt] = 0; break; 229bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 230bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard /* Note: mftb and TBRL/TBWL are user-accessible, so 231bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * the guest can always access the real TB anyways. 232bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * In fact, we probably will never see these traps. */ 233bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard case SPRN_TBWL: 234513579e3a391a3874c478a8493080822069976e8Alexander Graf vcpu->arch.gpr[rt] = get_tb() >> 32; break; 235bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard case SPRN_TBWU: 236513579e3a391a3874c478a8493080822069976e8Alexander Graf vcpu->arch.gpr[rt] = get_tb(); break; 237bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 238bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard case SPRN_SPRG0: 239bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.gpr[rt] = vcpu->arch.sprg0; break; 240bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard case SPRN_SPRG1: 241bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.gpr[rt] = vcpu->arch.sprg1; break; 242bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard case SPRN_SPRG2: 243bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.gpr[rt] = vcpu->arch.sprg2; break; 244bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard case SPRN_SPRG3: 245bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.gpr[rt] = vcpu->arch.sprg3; break; 246bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard /* Note: SPRG4-7 are user-readable, so we don't get 247bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * a trap. */ 248bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 2499a7a9b09fee8487003df012d9af4b227b3661e4dAlexander Graf case SPRN_DEC: 2509a7a9b09fee8487003df012d9af4b227b3661e4dAlexander Graf { 251513579e3a391a3874c478a8493080822069976e8Alexander Graf u64 jd = get_tb() - vcpu->arch.dec_jiffies; 2529a7a9b09fee8487003df012d9af4b227b3661e4dAlexander Graf vcpu->arch.gpr[rt] = vcpu->arch.dec - jd; 253513579e3a391a3874c478a8493080822069976e8Alexander Graf pr_debug(KERN_INFO "mfDEC: %x - %llx = %lx\n", vcpu->arch.dec, jd, vcpu->arch.gpr[rt]); 2549a7a9b09fee8487003df012d9af4b227b3661e4dAlexander Graf break; 2559a7a9b09fee8487003df012d9af4b227b3661e4dAlexander Graf } 256bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard default: 25775f74f0dbe086c239b4b0cc5ed75b903ea3e663fHollis Blanchard emulated = kvmppc_core_emulate_mfspr(vcpu, sprn, rt); 25875f74f0dbe086c239b4b0cc5ed75b903ea3e663fHollis Blanchard if (emulated == EMULATE_FAIL) { 25975f74f0dbe086c239b4b0cc5ed75b903ea3e663fHollis Blanchard printk("mfspr: unknown spr %x\n", sprn); 26075f74f0dbe086c239b4b0cc5ed75b903ea3e663fHollis Blanchard vcpu->arch.gpr[rt] = 0; 26175f74f0dbe086c239b4b0cc5ed75b903ea3e663fHollis Blanchard } 262bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 263bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard } 264bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 265bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 266cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_31_XOP_STHX: 267bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rs = get_rs(inst); 268bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard ra = get_ra(inst); 269bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rb = get_rb(inst); 270bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 271bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard emulated = kvmppc_handle_store(run, vcpu, 272bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.gpr[rs], 273bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 2, 1); 274bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 275bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 276cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_31_XOP_STHUX: 277bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rs = get_rs(inst); 278bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard ra = get_ra(inst); 279bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rb = get_rb(inst); 280bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 281bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard ea = vcpu->arch.gpr[rb]; 282bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard if (ra) 283bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard ea += vcpu->arch.gpr[ra]; 284bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 285bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard emulated = kvmppc_handle_store(run, vcpu, 286bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.gpr[rs], 287bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 2, 1); 288bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.gpr[ra] = ea; 289bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 290bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 291cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_31_XOP_MTSPR: 292bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard sprn = get_sprn(inst); 293bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rs = get_rs(inst); 294bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard switch (sprn) { 295bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard case SPRN_SRR0: 296bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.srr0 = vcpu->arch.gpr[rs]; break; 297bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard case SPRN_SRR1: 298bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.srr1 = vcpu->arch.gpr[rs]; break; 299bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 300bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard /* XXX We need to context-switch the timebase for 301bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * watchdog and FIT. */ 302bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard case SPRN_TBWL: break; 303bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard case SPRN_TBWU: break; 304bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 305513579e3a391a3874c478a8493080822069976e8Alexander Graf case SPRN_MSSSR0: break; 306513579e3a391a3874c478a8493080822069976e8Alexander Graf 307bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard case SPRN_DEC: 308bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.dec = vcpu->arch.gpr[rs]; 309bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard kvmppc_emulate_dec(vcpu); 310bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 311bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 312bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard case SPRN_SPRG0: 313bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.sprg0 = vcpu->arch.gpr[rs]; break; 314bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard case SPRN_SPRG1: 315bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.sprg1 = vcpu->arch.gpr[rs]; break; 316bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard case SPRN_SPRG2: 317bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.sprg2 = vcpu->arch.gpr[rs]; break; 318bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard case SPRN_SPRG3: 319bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.sprg3 = vcpu->arch.gpr[rs]; break; 320bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 321bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard default: 32275f74f0dbe086c239b4b0cc5ed75b903ea3e663fHollis Blanchard emulated = kvmppc_core_emulate_mtspr(vcpu, sprn, rs); 32375f74f0dbe086c239b4b0cc5ed75b903ea3e663fHollis Blanchard if (emulated == EMULATE_FAIL) 32475f74f0dbe086c239b4b0cc5ed75b903ea3e663fHollis Blanchard printk("mtspr: unknown spr %x\n", sprn); 325bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 326bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard } 327bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 328bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 329cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_31_XOP_DCBI: 330bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard /* Do nothing. The guest is performing dcbi because 331bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * hardware DMA is not snooped by the dcache, but 332bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * emulated DMA either goes through the dcache as 333bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * normal writes, or the host kernel has handled dcache 334bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard * coherence. */ 335bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 336bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 337cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_31_XOP_LWBRX: 338bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rt = get_rt(inst); 339bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard emulated = kvmppc_handle_load(run, vcpu, rt, 4, 0); 340bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 341bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 342cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_31_XOP_TLBSYNC: 343bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 344bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 345cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_31_XOP_STWBRX: 346bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rs = get_rs(inst); 347bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard ra = get_ra(inst); 348bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rb = get_rb(inst); 349bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 350bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard emulated = kvmppc_handle_store(run, vcpu, 351bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.gpr[rs], 352bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 4, 0); 353bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 354bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 355cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_31_XOP_LHBRX: 356bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rt = get_rt(inst); 357bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard emulated = kvmppc_handle_load(run, vcpu, rt, 2, 0); 358bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 359bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 360cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_31_XOP_STHBRX: 361bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rs = get_rs(inst); 362bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard ra = get_ra(inst); 363bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rb = get_rb(inst); 364bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 365bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard emulated = kvmppc_handle_store(run, vcpu, 366bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.gpr[rs], 367bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 2, 0); 368bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 369bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 370bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard default: 37175f74f0dbe086c239b4b0cc5ed75b903ea3e663fHollis Blanchard /* Attempt core-specific emulation below. */ 372bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard emulated = EMULATE_FAIL; 373bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard } 374bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 375bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 376cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_LWZ: 377bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rt = get_rt(inst); 378bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard emulated = kvmppc_handle_load(run, vcpu, rt, 4, 1); 379bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 380bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 381cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_LWZU: 382bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard ra = get_ra(inst); 383bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rt = get_rt(inst); 384bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard emulated = kvmppc_handle_load(run, vcpu, rt, 4, 1); 385bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.gpr[ra] = vcpu->arch.paddr_accessed; 386bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 387bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 388cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_LBZ: 389bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rt = get_rt(inst); 390bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard emulated = kvmppc_handle_load(run, vcpu, rt, 1, 1); 391bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 392bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 393cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_LBZU: 394bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard ra = get_ra(inst); 395bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rt = get_rt(inst); 396bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard emulated = kvmppc_handle_load(run, vcpu, rt, 1, 1); 397bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.gpr[ra] = vcpu->arch.paddr_accessed; 398bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 399bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 400cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_STW: 401bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rs = get_rs(inst); 402bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard emulated = kvmppc_handle_store(run, vcpu, vcpu->arch.gpr[rs], 403bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 4, 1); 404bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 405bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 406cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_STWU: 407bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard ra = get_ra(inst); 408bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rs = get_rs(inst); 409bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard emulated = kvmppc_handle_store(run, vcpu, vcpu->arch.gpr[rs], 410bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 4, 1); 411bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.gpr[ra] = vcpu->arch.paddr_accessed; 412bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 413bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 414cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_STB: 415bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rs = get_rs(inst); 416bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard emulated = kvmppc_handle_store(run, vcpu, vcpu->arch.gpr[rs], 417bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 1, 1); 418bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 419bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 420cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_STBU: 421bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard ra = get_ra(inst); 422bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rs = get_rs(inst); 423bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard emulated = kvmppc_handle_store(run, vcpu, vcpu->arch.gpr[rs], 424bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 1, 1); 425bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.gpr[ra] = vcpu->arch.paddr_accessed; 426bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 427bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 428cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_LHZ: 429bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rt = get_rt(inst); 430bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard emulated = kvmppc_handle_load(run, vcpu, rt, 2, 1); 431bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 432bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 433cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_LHZU: 434bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard ra = get_ra(inst); 435bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rt = get_rt(inst); 436bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard emulated = kvmppc_handle_load(run, vcpu, rt, 2, 1); 437bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.gpr[ra] = vcpu->arch.paddr_accessed; 438bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 439bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 440cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_STH: 441bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rs = get_rs(inst); 442bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard emulated = kvmppc_handle_store(run, vcpu, vcpu->arch.gpr[rs], 443bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 2, 1); 444bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 445bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 446cea5d8c9de669e30ed6d60930318376d5cc42e9eHollis Blanchard case OP_STHU: 447bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard ra = get_ra(inst); 448bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard rs = get_rs(inst); 449bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard emulated = kvmppc_handle_store(run, vcpu, vcpu->arch.gpr[rs], 450bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 2, 1); 451bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.gpr[ra] = vcpu->arch.paddr_accessed; 452bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard break; 453bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 454bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard default: 455bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard emulated = EMULATE_FAIL; 45675f74f0dbe086c239b4b0cc5ed75b903ea3e663fHollis Blanchard } 45775f74f0dbe086c239b4b0cc5ed75b903ea3e663fHollis Blanchard 45875f74f0dbe086c239b4b0cc5ed75b903ea3e663fHollis Blanchard if (emulated == EMULATE_FAIL) { 45975f74f0dbe086c239b4b0cc5ed75b903ea3e663fHollis Blanchard emulated = kvmppc_core_emulate_op(run, vcpu, inst, &advance); 46075f74f0dbe086c239b4b0cc5ed75b903ea3e663fHollis Blanchard if (emulated == EMULATE_FAIL) { 46175f74f0dbe086c239b4b0cc5ed75b903ea3e663fHollis Blanchard advance = 0; 46275f74f0dbe086c239b4b0cc5ed75b903ea3e663fHollis Blanchard printk(KERN_ERR "Couldn't emulate instruction 0x%08x " 46375f74f0dbe086c239b4b0cc5ed75b903ea3e663fHollis Blanchard "(op %d xop %d)\n", inst, get_op(inst), get_xop(inst)); 46475f74f0dbe086c239b4b0cc5ed75b903ea3e663fHollis Blanchard } 465bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard } 466bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 46746f43c6ee022c3aeb9686b104234b9f27fac03c2Marcelo Tosatti trace_kvm_ppc_instr(inst, vcpu->arch.pc, emulated); 4683b4bd7969f7b61a1ab455bff084ee4f0a2411055Christian Ehrhardt 469bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard if (advance) 470bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard vcpu->arch.pc += 4; /* Advance past emulated instruction. */ 471bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard 472bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard return emulated; 473bbf45ba57eaec56569918a8bab96ab653bd45ec1Hollis Blanchard} 474