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 SUSE Linux Products GmbH 2009 16 * 17 * Authors: Alexander Graf <agraf@suse.de> 18 */ 19 20 #ifndef __ASM_KVM_BOOK3S_H__ 21 #define __ASM_KVM_BOOK3S_H__ 22 23 #include <linux/types.h> 24 #include <linux/kvm_host.h> 25 #include <asm/kvm_book3s_asm.h> 26 27 struct kvmppc_slb { 28 u64 esid; 29 u64 vsid; 30 u64 orige; 31 u64 origv; 32 bool valid : 1; 33 bool Ks : 1; 34 bool Kp : 1; 35 bool nx : 1; 36 bool large : 1; /* PTEs are 16MB */ 37 bool tb : 1; /* 1TB segment */ 38 bool class : 1; 39 }; 40 41 struct kvmppc_bat { 42 u64 raw; 43 u32 bepi; 44 u32 bepi_mask; 45 u32 brpn; 46 u8 wimg; 47 u8 pp; 48 bool vs : 1; 49 bool vp : 1; 50 }; 51 52 struct kvmppc_sid_map { 53 u64 guest_vsid; 54 u64 guest_esid; 55 u64 host_vsid; 56 bool valid : 1; 57 }; 58 59 #define SID_MAP_BITS 9 60 #define SID_MAP_NUM (1 << SID_MAP_BITS) 61 #define SID_MAP_MASK (SID_MAP_NUM - 1) 62 63 #ifdef CONFIG_PPC_BOOK3S_64 64 #define SID_CONTEXTS 1 65 #else 66 #define SID_CONTEXTS 128 67 #define VSID_POOL_SIZE (SID_CONTEXTS * 16) 68 #endif 69 70 struct kvmppc_vcpu_book3s { 71 struct kvm_vcpu vcpu; 72 struct kvmppc_book3s_shadow_vcpu *shadow_vcpu; 73 struct kvmppc_sid_map sid_map[SID_MAP_NUM]; 74 struct kvmppc_slb slb[64]; 75 struct { 76 u64 esid; 77 u64 vsid; 78 } slb_shadow[64]; 79 u8 slb_shadow_max; 80 struct kvmppc_bat ibat[8]; 81 struct kvmppc_bat dbat[8]; 82 u64 hid[6]; 83 u64 gqr[8]; 84 int slb_nr; 85 u64 sdr1; 86 u64 hior; 87 u64 msr_mask; 88 u64 vsid_next; 89 #ifdef CONFIG_PPC_BOOK3S_32 90 u32 vsid_pool[VSID_POOL_SIZE]; 91 #else 92 u64 vsid_first; 93 u64 vsid_max; 94 #endif 95 int context_id[SID_CONTEXTS]; 96 ulong prog_flags; /* flags to inject when giving a 700 trap */ 97 }; 98 99 #define CONTEXT_HOST 0 100 #define CONTEXT_GUEST 1 101 #define CONTEXT_GUEST_END 2 102 103 #define VSID_REAL 0x1fffffffffc00000ULL 104 #define VSID_BAT 0x1fffffffffb00000ULL 105 #define VSID_REAL_DR 0x2000000000000000ULL 106 #define VSID_REAL_IR 0x4000000000000000ULL 107 #define VSID_PR 0x8000000000000000ULL 108 109 extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask); 110 extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask); 111 extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end); 112 extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr); 113 extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu); 114 extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu); 115 extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte); 116 extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr); 117 extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu); 118 119 extern void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte); 120 extern struct hpte_cache *kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu); 121 extern void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu); 122 extern int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu); 123 extern void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte); 124 extern int kvmppc_mmu_hpte_sysinit(void); 125 extern void kvmppc_mmu_hpte_sysexit(void); 126 127 extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data); 128 extern int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data); 129 extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec); 130 extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat, 131 bool upper, u32 val); 132 extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr); 133 extern int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu); 134 extern pfn_t kvmppc_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn); 135 136 extern ulong kvmppc_trampoline_lowmem; 137 extern ulong kvmppc_trampoline_enter; 138 extern void kvmppc_rmcall(ulong srr0, ulong srr1); 139 extern void kvmppc_load_up_fpu(void); 140 extern void kvmppc_load_up_altivec(void); 141 extern void kvmppc_load_up_vsx(void); 142 extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst); 143 extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst); 144 145 static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu) 146 { 147 return container_of(vcpu, struct kvmppc_vcpu_book3s, vcpu); 148 } 149 150 static inline ulong dsisr(void) 151 { 152 ulong r; 153 asm ( "mfdsisr %0 " : "=r" (r) ); 154 return r; 155 } 156 157 extern void kvm_return_point(void); 158 static inline struct kvmppc_book3s_shadow_vcpu *to_svcpu(struct kvm_vcpu *vcpu); 159 160 static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val) 161 { 162 if ( num < 14 ) { 163 to_svcpu(vcpu)->gpr[num] = val; 164 to_book3s(vcpu)->shadow_vcpu->gpr[num] = val; 165 } else 166 vcpu->arch.gpr[num] = val; 167 } 168 169 static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num) 170 { 171 if ( num < 14 ) 172 return to_svcpu(vcpu)->gpr[num]; 173 else 174 return vcpu->arch.gpr[num]; 175 } 176 177 static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val) 178 { 179 to_svcpu(vcpu)->cr = val; 180 to_book3s(vcpu)->shadow_vcpu->cr = val; 181 } 182 183 static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu) 184 { 185 return to_svcpu(vcpu)->cr; 186 } 187 188 static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val) 189 { 190 to_svcpu(vcpu)->xer = val; 191 to_book3s(vcpu)->shadow_vcpu->xer = val; 192 } 193 194 static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu) 195 { 196 return to_svcpu(vcpu)->xer; 197 } 198 199 static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val) 200 { 201 to_svcpu(vcpu)->ctr = val; 202 } 203 204 static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu) 205 { 206 return to_svcpu(vcpu)->ctr; 207 } 208 209 static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val) 210 { 211 to_svcpu(vcpu)->lr = val; 212 } 213 214 static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu) 215 { 216 return to_svcpu(vcpu)->lr; 217 } 218 219 static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val) 220 { 221 to_svcpu(vcpu)->pc = val; 222 } 223 224 static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu) 225 { 226 return to_svcpu(vcpu)->pc; 227 } 228 229 static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu) 230 { 231 ulong pc = kvmppc_get_pc(vcpu); 232 struct kvmppc_book3s_shadow_vcpu *svcpu = to_svcpu(vcpu); 233 234 /* Load the instruction manually if it failed to do so in the 235 * exit path */ 236 if (svcpu->last_inst == KVM_INST_FETCH_FAILED) 237 kvmppc_ld(vcpu, &pc, sizeof(u32), &svcpu->last_inst, false); 238 239 return svcpu->last_inst; 240 } 241 242 static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu) 243 { 244 return to_svcpu(vcpu)->fault_dar; 245 } 246 247 /* Magic register values loaded into r3 and r4 before the 'sc' assembly 248 * instruction for the OSI hypercalls */ 249 #define OSI_SC_MAGIC_R3 0x113724FA 250 #define OSI_SC_MAGIC_R4 0x77810F9B 251 252 #define INS_DCBZ 0x7c0007ec 253 254 /* Also add subarch specific defines */ 255 256 #ifdef CONFIG_PPC_BOOK3S_32 257 #include <asm/kvm_book3s_32.h> 258 #else 259 #include <asm/kvm_book3s_64.h> 260 #endif 261 262 #endif /* __ASM_KVM_BOOK3S_H__ */ 263