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 #endif 34 35 enum emulation_result { 36 EMULATE_DONE, /* no further processing */ 37 EMULATE_DO_MMIO, /* kvm_run filled with MMIO request */ 38 EMULATE_DO_DCR, /* kvm_run filled with DCR request */ 39 EMULATE_FAIL, /* can't emulate this instruction */ 40 }; 41 42 extern int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu); 43 extern char kvmppc_handlers_start[]; 44 extern unsigned long kvmppc_handler_len; 45 extern void kvmppc_handler_highmem(void); 46 47 extern void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu); 48 extern int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu, 49 unsigned int rt, unsigned int bytes, 50 int is_bigendian); 51 extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu, 52 u32 val, unsigned int bytes, int is_bigendian); 53 54 extern int kvmppc_emulate_instruction(struct kvm_run *run, 55 struct kvm_vcpu *vcpu); 56 extern int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu); 57 extern void kvmppc_emulate_dec(struct kvm_vcpu *vcpu); 58 59 /* Core-specific hooks */ 60 61 extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr, 62 unsigned int gtlb_idx); 63 extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode); 64 extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid); 65 extern void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu); 66 extern int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr); 67 extern int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr); 68 extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index, 69 gva_t eaddr); 70 extern void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu); 71 extern void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu); 72 73 extern struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, 74 unsigned int id); 75 extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu); 76 extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu); 77 extern int kvmppc_core_check_processor_compat(void); 78 extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu, 79 struct kvm_translation *tr); 80 81 extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu); 82 extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu); 83 84 extern void kvmppc_core_deliver_interrupts(struct kvm_vcpu *vcpu); 85 extern int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu); 86 extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags); 87 extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu); 88 extern void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu); 89 extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu, 90 struct kvm_interrupt *irq); 91 92 extern int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, 93 unsigned int op, int *advance); 94 extern int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs); 95 extern int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt); 96 97 extern int kvmppc_booke_init(void); 98 extern void kvmppc_booke_exit(void); 99 100 extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu); 101 102 #ifdef CONFIG_PPC_BOOK3S 103 104 /* We assume we're always acting on the current vcpu */ 105 106 static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val) 107 { 108 if ( num < 14 ) { 109 get_paca()->shadow_vcpu.gpr[num] = val; 110 to_book3s(vcpu)->shadow_vcpu.gpr[num] = val; 111 } else 112 vcpu->arch.gpr[num] = val; 113 } 114 115 static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num) 116 { 117 if ( num < 14 ) 118 return get_paca()->shadow_vcpu.gpr[num]; 119 else 120 return vcpu->arch.gpr[num]; 121 } 122 123 static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val) 124 { 125 get_paca()->shadow_vcpu.cr = val; 126 to_book3s(vcpu)->shadow_vcpu.cr = val; 127 } 128 129 static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu) 130 { 131 return get_paca()->shadow_vcpu.cr; 132 } 133 134 static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val) 135 { 136 get_paca()->shadow_vcpu.xer = val; 137 to_book3s(vcpu)->shadow_vcpu.xer = val; 138 } 139 140 static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu) 141 { 142 return get_paca()->shadow_vcpu.xer; 143 } 144 145 #else 146 147 static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val) 148 { 149 vcpu->arch.gpr[num] = val; 150 } 151 152 static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num) 153 { 154 return vcpu->arch.gpr[num]; 155 } 156 157 static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val) 158 { 159 vcpu->arch.cr = val; 160 } 161 162 static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu) 163 { 164 return vcpu->arch.cr; 165 } 166 167 static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val) 168 { 169 vcpu->arch.xer = val; 170 } 171 172 static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu) 173 { 174 return vcpu->arch.xer; 175 } 176 177 #endif 178 179 #endif /* __POWERPC_KVM_PPC_H__ */ 180