kvm_ppc.h revision c77162dee7aff6ab5f075da9b60f649cbbeb86cc
1/* 2 * This program is free software; you can redistribute it and/or modify 3 * it under the terms of the GNU General Public License, version 2, as 4 * published by the Free Software Foundation. 5 * 6 * This program is distributed in the hope that it will be useful, 7 * but WITHOUT ANY WARRANTY; without even the implied warranty of 8 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 9 * GNU General Public License for more details. 10 * 11 * You should have received a copy of the GNU General Public License 12 * along with this program; if not, write to the Free Software 13 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 14 * 15 * Copyright IBM Corp. 2008 16 * 17 * Authors: Hollis Blanchard <hollisb@us.ibm.com> 18 */ 19 20#ifndef __POWERPC_KVM_PPC_H__ 21#define __POWERPC_KVM_PPC_H__ 22 23/* This file exists just so we can dereference kvm_vcpu, avoiding nested header 24 * dependencies. */ 25 26#include <linux/mutex.h> 27#include <linux/timer.h> 28#include <linux/types.h> 29#include <linux/kvm_types.h> 30#include <linux/kvm_host.h> 31#ifdef CONFIG_PPC_BOOK3S 32#include <asm/kvm_book3s.h> 33#else 34#include <asm/kvm_booke.h> 35#endif 36#ifdef CONFIG_KVM_BOOK3S_64_HANDLER 37#include <asm/paca.h> 38#endif 39 40enum emulation_result { 41 EMULATE_DONE, /* no further processing */ 42 EMULATE_DO_MMIO, /* kvm_run filled with MMIO request */ 43 EMULATE_DO_DCR, /* kvm_run filled with DCR request */ 44 EMULATE_FAIL, /* can't emulate this instruction */ 45 EMULATE_AGAIN, /* something went wrong. go again */ 46}; 47 48extern int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu); 49extern int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu); 50extern char kvmppc_handlers_start[]; 51extern unsigned long kvmppc_handler_len; 52extern void kvmppc_handler_highmem(void); 53 54extern void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu); 55extern int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu, 56 unsigned int rt, unsigned int bytes, 57 int is_bigendian); 58extern int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu, 59 unsigned int rt, unsigned int bytes, 60 int is_bigendian); 61extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu, 62 u64 val, unsigned int bytes, int is_bigendian); 63 64extern int kvmppc_emulate_instruction(struct kvm_run *run, 65 struct kvm_vcpu *vcpu); 66extern int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu); 67extern void kvmppc_emulate_dec(struct kvm_vcpu *vcpu); 68extern u32 kvmppc_get_dec(struct kvm_vcpu *vcpu, u64 tb); 69extern void kvmppc_decrementer_func(unsigned long data); 70extern int kvmppc_sanity_check(struct kvm_vcpu *vcpu); 71 72/* Core-specific hooks */ 73 74extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr, 75 unsigned int gtlb_idx); 76extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode); 77extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid); 78extern void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu); 79extern int kvmppc_mmu_init(struct kvm_vcpu *vcpu); 80extern int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr); 81extern int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr); 82extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index, 83 gva_t eaddr); 84extern void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu); 85extern void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu); 86 87extern struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, 88 unsigned int id); 89extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu); 90extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu); 91extern int kvmppc_core_check_processor_compat(void); 92extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu, 93 struct kvm_translation *tr); 94 95extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu); 96extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu); 97 98extern void kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu); 99extern int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu); 100extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags); 101extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu); 102extern void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu); 103extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu, 104 struct kvm_interrupt *irq); 105extern void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu, 106 struct kvm_interrupt *irq); 107 108extern int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, 109 unsigned int op, int *advance); 110extern int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs); 111extern int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt); 112 113extern int kvmppc_booke_init(void); 114extern void kvmppc_booke_exit(void); 115 116extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu); 117extern int kvmppc_kvm_pv(struct kvm_vcpu *vcpu); 118extern void kvmppc_map_magic(struct kvm_vcpu *vcpu); 119 120extern long kvmppc_alloc_hpt(struct kvm *kvm); 121extern void kvmppc_free_hpt(struct kvm *kvm); 122extern long kvmppc_prepare_vrma(struct kvm *kvm, 123 struct kvm_userspace_memory_region *mem); 124extern void kvmppc_map_vrma(struct kvm_vcpu *vcpu, 125 struct kvm_memory_slot *memslot); 126extern int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu); 127extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm, 128 struct kvm_create_spapr_tce *args); 129extern long kvm_vm_ioctl_allocate_rma(struct kvm *kvm, 130 struct kvm_allocate_rma *rma); 131extern struct kvmppc_rma_info *kvm_alloc_rma(void); 132extern void kvm_release_rma(struct kvmppc_rma_info *ri); 133extern int kvmppc_core_init_vm(struct kvm *kvm); 134extern void kvmppc_core_destroy_vm(struct kvm *kvm); 135extern int kvmppc_core_prepare_memory_region(struct kvm *kvm, 136 struct kvm_userspace_memory_region *mem); 137extern void kvmppc_core_commit_memory_region(struct kvm *kvm, 138 struct kvm_userspace_memory_region *mem); 139 140/* 141 * Cuts out inst bits with ordering according to spec. 142 * That means the leftmost bit is zero. All given bits are included. 143 */ 144static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb) 145{ 146 u32 r; 147 u32 mask; 148 149 BUG_ON(msb > lsb); 150 151 mask = (1 << (lsb - msb + 1)) - 1; 152 r = (inst >> (63 - lsb)) & mask; 153 154 return r; 155} 156 157/* 158 * Replaces inst bits with ordering according to spec. 159 */ 160static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value) 161{ 162 u32 r; 163 u32 mask; 164 165 BUG_ON(msb > lsb); 166 167 mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb); 168 r = (inst & ~mask) | ((value << (63 - lsb)) & mask); 169 170 return r; 171} 172 173void kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 174int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 175 176void kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 177int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 178 179void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid); 180 181#ifdef CONFIG_KVM_BOOK3S_64_HV 182static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr) 183{ 184 paca[cpu].kvm_hstate.xics_phys = addr; 185} 186 187extern void kvm_rma_init(void); 188 189#else 190static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr) 191{} 192 193static inline void kvm_rma_init(void) 194{} 195#endif 196 197int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu, 198 struct kvm_config_tlb *cfg); 199int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu *vcpu, 200 struct kvm_dirty_tlb *cfg); 201 202#endif /* __POWERPC_KVM_PPC_H__ */ 203