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_bat { 28 u64 raw; 29 u32 bepi; 30 u32 bepi_mask; 31 u32 brpn; 32 u8 wimg; 33 u8 pp; 34 bool vs : 1; 35 bool vp : 1; 36 }; 37 38 struct kvmppc_sid_map { 39 u64 guest_vsid; 40 u64 guest_esid; 41 u64 host_vsid; 42 bool valid : 1; 43 }; 44 45 #define SID_MAP_BITS 9 46 #define SID_MAP_NUM (1 << SID_MAP_BITS) 47 #define SID_MAP_MASK (SID_MAP_NUM - 1) 48 49 #ifdef CONFIG_PPC_BOOK3S_64 50 #define SID_CONTEXTS 1 51 #else 52 #define SID_CONTEXTS 128 53 #define VSID_POOL_SIZE (SID_CONTEXTS * 16) 54 #endif 55 56 struct hpte_cache { 57 struct hlist_node list_pte; 58 struct hlist_node list_pte_long; 59 struct hlist_node list_vpte; 60 struct hlist_node list_vpte_long; 61 struct rcu_head rcu_head; 62 u64 host_va; 63 u64 pfn; 64 ulong slot; 65 struct kvmppc_pte pte; 66 }; 67 68 struct kvmppc_vcpu_book3s { 69 struct kvm_vcpu vcpu; 70 struct kvmppc_book3s_shadow_vcpu *shadow_vcpu; 71 struct kvmppc_sid_map sid_map[SID_MAP_NUM]; 72 struct { 73 u64 esid; 74 u64 vsid; 75 } slb_shadow[64]; 76 u8 slb_shadow_max; 77 struct kvmppc_bat ibat[8]; 78 struct kvmppc_bat dbat[8]; 79 u64 hid[6]; 80 u64 gqr[8]; 81 u64 sdr1; 82 u64 hior; 83 u64 msr_mask; 84 u64 vsid_next; 85 #ifdef CONFIG_PPC_BOOK3S_32 86 u32 vsid_pool[VSID_POOL_SIZE]; 87 #else 88 u64 vsid_first; 89 u64 vsid_max; 90 #endif 91 int context_id[SID_CONTEXTS]; 92 93 struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE]; 94 struct hlist_head hpte_hash_pte_long[HPTEG_HASH_NUM_PTE_LONG]; 95 struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE]; 96 struct hlist_head hpte_hash_vpte_long[HPTEG_HASH_NUM_VPTE_LONG]; 97 int hpte_cache_count; 98 spinlock_t mmu_lock; 99 }; 100 101 #define CONTEXT_HOST 0 102 #define CONTEXT_GUEST 1 103 #define CONTEXT_GUEST_END 2 104 105 #define VSID_REAL 0x1fffffffffc00000ULL 106 #define VSID_BAT 0x1fffffffffb00000ULL 107 #define VSID_REAL_DR 0x2000000000000000ULL 108 #define VSID_REAL_IR 0x4000000000000000ULL 109 #define VSID_PR 0x8000000000000000ULL 110 111 extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask); 112 extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask); 113 extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end); 114 extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr); 115 extern void kvmppc_set_pvr(struct kvm_vcpu *vcpu, u32 pvr); 116 extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu); 117 extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu); 118 extern void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu); 119 extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte); 120 extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr); 121 extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu); 122 123 extern void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte); 124 extern struct hpte_cache *kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu); 125 extern void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu); 126 extern int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu); 127 extern void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte); 128 extern int kvmppc_mmu_hpte_sysinit(void); 129 extern void kvmppc_mmu_hpte_sysexit(void); 130 extern int kvmppc_mmu_hv_init(void); 131 132 extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data); 133 extern int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data); 134 extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec); 135 extern void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags); 136 extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat, 137 bool upper, u32 val); 138 extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr); 139 extern int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu); 140 extern pfn_t kvmppc_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn); 141 142 extern void kvmppc_entry_trampoline(void); 143 extern void kvmppc_hv_entry_trampoline(void); 144 extern void kvmppc_load_up_fpu(void); 145 extern void kvmppc_load_up_altivec(void); 146 extern void kvmppc_load_up_vsx(void); 147 extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst); 148 extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst); 149 extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd); 150 151 static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu) 152 { 153 return container_of(vcpu, struct kvmppc_vcpu_book3s, vcpu); 154 } 155 156 extern void kvm_return_point(void); 157 158 /* Also add subarch specific defines */ 159 160 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER 161 #include <asm/kvm_book3s_32.h> 162 #endif 163 #ifdef CONFIG_KVM_BOOK3S_64_HANDLER 164 #include <asm/kvm_book3s_64.h> 165 #endif 166 167 #ifdef CONFIG_KVM_BOOK3S_PR 168 169 static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu) 170 { 171 return to_book3s(vcpu)->hior; 172 } 173 174 static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu, 175 unsigned long pending_now, unsigned long old_pending) 176 { 177 if (pending_now) 178 vcpu->arch.shared->int_pending = 1; 179 else if (old_pending) 180 vcpu->arch.shared->int_pending = 0; 181 } 182 183 static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val) 184 { 185 if ( num < 14 ) { 186 to_svcpu(vcpu)->gpr[num] = val; 187 to_book3s(vcpu)->shadow_vcpu->gpr[num] = val; 188 } else 189 vcpu->arch.gpr[num] = val; 190 } 191 192 static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num) 193 { 194 if ( num < 14 ) 195 return to_svcpu(vcpu)->gpr[num]; 196 else 197 return vcpu->arch.gpr[num]; 198 } 199 200 static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val) 201 { 202 to_svcpu(vcpu)->cr = val; 203 to_book3s(vcpu)->shadow_vcpu->cr = val; 204 } 205 206 static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu) 207 { 208 return to_svcpu(vcpu)->cr; 209 } 210 211 static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val) 212 { 213 to_svcpu(vcpu)->xer = val; 214 to_book3s(vcpu)->shadow_vcpu->xer = val; 215 } 216 217 static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu) 218 { 219 return to_svcpu(vcpu)->xer; 220 } 221 222 static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val) 223 { 224 to_svcpu(vcpu)->ctr = val; 225 } 226 227 static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu) 228 { 229 return to_svcpu(vcpu)->ctr; 230 } 231 232 static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val) 233 { 234 to_svcpu(vcpu)->lr = val; 235 } 236 237 static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu) 238 { 239 return to_svcpu(vcpu)->lr; 240 } 241 242 static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val) 243 { 244 to_svcpu(vcpu)->pc = val; 245 } 246 247 static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu) 248 { 249 return to_svcpu(vcpu)->pc; 250 } 251 252 static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu) 253 { 254 ulong pc = kvmppc_get_pc(vcpu); 255 struct kvmppc_book3s_shadow_vcpu *svcpu = to_svcpu(vcpu); 256 257 /* Load the instruction manually if it failed to do so in the 258 * exit path */ 259 if (svcpu->last_inst == KVM_INST_FETCH_FAILED) 260 kvmppc_ld(vcpu, &pc, sizeof(u32), &svcpu->last_inst, false); 261 262 return svcpu->last_inst; 263 } 264 265 static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu) 266 { 267 return to_svcpu(vcpu)->fault_dar; 268 } 269 270 static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu) 271 { 272 ulong crit_raw = vcpu->arch.shared->critical; 273 ulong crit_r1 = kvmppc_get_gpr(vcpu, 1); 274 bool crit; 275 276 /* Truncate crit indicators in 32 bit mode */ 277 if (!(vcpu->arch.shared->msr & MSR_SF)) { 278 crit_raw &= 0xffffffff; 279 crit_r1 &= 0xffffffff; 280 } 281 282 /* Critical section when crit == r1 */ 283 crit = (crit_raw == crit_r1); 284 /* ... and we're in supervisor mode */ 285 crit = crit && !(vcpu->arch.shared->msr & MSR_PR); 286 287 return crit; 288 } 289 #else /* CONFIG_KVM_BOOK3S_PR */ 290 291 static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu) 292 { 293 return 0; 294 } 295 296 static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu, 297 unsigned long pending_now, unsigned long old_pending) 298 { 299 } 300 301 static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val) 302 { 303 vcpu->arch.gpr[num] = val; 304 } 305 306 static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num) 307 { 308 return vcpu->arch.gpr[num]; 309 } 310 311 static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val) 312 { 313 vcpu->arch.cr = val; 314 } 315 316 static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu) 317 { 318 return vcpu->arch.cr; 319 } 320 321 static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val) 322 { 323 vcpu->arch.xer = val; 324 } 325 326 static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu) 327 { 328 return vcpu->arch.xer; 329 } 330 331 static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val) 332 { 333 vcpu->arch.ctr = val; 334 } 335 336 static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu) 337 { 338 return vcpu->arch.ctr; 339 } 340 341 static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val) 342 { 343 vcpu->arch.lr = val; 344 } 345 346 static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu) 347 { 348 return vcpu->arch.lr; 349 } 350 351 static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val) 352 { 353 vcpu->arch.pc = val; 354 } 355 356 static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu) 357 { 358 return vcpu->arch.pc; 359 } 360 361 static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu) 362 { 363 ulong pc = kvmppc_get_pc(vcpu); 364 365 /* Load the instruction manually if it failed to do so in the 366 * exit path */ 367 if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED) 368 kvmppc_ld(vcpu, &pc, sizeof(u32), &vcpu->arch.last_inst, false); 369 370 return vcpu->arch.last_inst; 371 } 372 373 static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu) 374 { 375 return vcpu->arch.fault_dar; 376 } 377 378 static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu) 379 { 380 return false; 381 } 382 #endif 383 384 /* Magic register values loaded into r3 and r4 before the 'sc' assembly 385 * instruction for the OSI hypercalls */ 386 #define OSI_SC_MAGIC_R3 0x113724FA 387 #define OSI_SC_MAGIC_R4 0x77810F9B 388 389 #define INS_DCBZ 0x7c0007ec 390 391 #endif /* __ASM_KVM_BOOK3S_H__ */ 392