1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * 4 * Copyright IBM Corp. 2008 5 * 6 * Authors: Hollis Blanchard <hollisb@us.ibm.com> 7 */ 8 9 #ifndef __POWERPC_KVM_PPC_H__ 10 #define __POWERPC_KVM_PPC_H__ 11 12 /* This file exists just so we can dereference kvm_vcpu, avoiding nested header 13 * dependencies. */ 14 15 #include <linux/mutex.h> 16 #include <linux/timer.h> 17 #include <linux/types.h> 18 #include <linux/kvm_types.h> 19 #include <linux/kvm_host.h> 20 #include <linux/bug.h> 21 #ifdef CONFIG_PPC_BOOK3S 22 #include <asm/kvm_book3s.h> 23 #else 24 #include <asm/kvm_booke.h> 25 #endif 26 #ifdef CONFIG_KVM_BOOK3S_64_HANDLER 27 #include <asm/paca.h> 28 #include <asm/xive.h> 29 #include <asm/cpu_has_feature.h> 30 #endif 31 32 /* 33 * KVMPPC_INST_SW_BREAKPOINT is debug Instruction 34 * for supporting software breakpoint. 35 */ 36 #define KVMPPC_INST_SW_BREAKPOINT 0x00dddd00 37 38 enum emulation_result { 39 EMULATE_DONE, /* no further processing */ 40 EMULATE_DO_MMIO, /* kvm_run filled with MMIO request */ 41 EMULATE_FAIL, /* can't emulate this instruction */ 42 EMULATE_AGAIN, /* something went wrong. go again */ 43 EMULATE_EXIT_USER, /* emulation requires exit to user-space */ 44 }; 45 46 enum instruction_fetch_type { 47 INST_GENERIC, 48 INST_SC, /* system call */ 49 }; 50 51 enum xlate_instdata { 52 XLATE_INST, /* translate instruction address */ 53 XLATE_DATA /* translate data address */ 54 }; 55 56 enum xlate_readwrite { 57 XLATE_READ, /* check for read permissions */ 58 XLATE_WRITE /* check for write permissions */ 59 }; 60 61 extern int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu); 62 extern int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu); 63 extern void kvmppc_handler_highmem(void); 64 65 extern void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu); 66 extern int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu, 67 unsigned int rt, unsigned int bytes, 68 int is_default_endian); 69 extern int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu, 70 unsigned int rt, unsigned int bytes, 71 int is_default_endian); 72 extern int kvmppc_handle_vsx_load(struct kvm_run *run, struct kvm_vcpu *vcpu, 73 unsigned int rt, unsigned int bytes, 74 int is_default_endian, int mmio_sign_extend); 75 extern int kvmppc_handle_vmx_load(struct kvm_run *run, struct kvm_vcpu *vcpu, 76 unsigned int rt, unsigned int bytes, int is_default_endian); 77 extern int kvmppc_handle_vmx_store(struct kvm_run *run, struct kvm_vcpu *vcpu, 78 unsigned int rs, unsigned int bytes, int is_default_endian); 79 extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu, 80 u64 val, unsigned int bytes, 81 int is_default_endian); 82 extern int kvmppc_handle_vsx_store(struct kvm_run *run, struct kvm_vcpu *vcpu, 83 int rs, unsigned int bytes, 84 int is_default_endian); 85 86 extern int kvmppc_load_last_inst(struct kvm_vcpu *vcpu, 87 enum instruction_fetch_type type, u32 *inst); 88 89 extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, 90 bool data); 91 extern int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, 92 bool data); 93 extern int kvmppc_emulate_instruction(struct kvm_run *run, 94 struct kvm_vcpu *vcpu); 95 extern int kvmppc_emulate_loadstore(struct kvm_vcpu *vcpu); 96 extern int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu); 97 extern void kvmppc_emulate_dec(struct kvm_vcpu *vcpu); 98 extern u32 kvmppc_get_dec(struct kvm_vcpu *vcpu, u64 tb); 99 extern void kvmppc_decrementer_func(struct kvm_vcpu *vcpu); 100 extern int kvmppc_sanity_check(struct kvm_vcpu *vcpu); 101 extern int kvmppc_subarch_vcpu_init(struct kvm_vcpu *vcpu); 102 extern void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu *vcpu); 103 104 /* Core-specific hooks */ 105 106 extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr, 107 unsigned int gtlb_idx); 108 extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode); 109 extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid); 110 extern void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu); 111 extern int kvmppc_mmu_init(struct kvm_vcpu *vcpu); 112 extern int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr); 113 extern int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr); 114 extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index, 115 gva_t eaddr); 116 extern void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu); 117 extern void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu); 118 extern int kvmppc_xlate(struct kvm_vcpu *vcpu, ulong eaddr, 119 enum xlate_instdata xlid, enum xlate_readwrite xlrw, 120 struct kvmppc_pte *pte); 121 122 extern struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, 123 unsigned int id); 124 extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu); 125 extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu); 126 extern int kvmppc_core_check_processor_compat(void); 127 extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu, 128 struct kvm_translation *tr); 129 130 extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu); 131 extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu); 132 133 extern int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu); 134 extern int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu); 135 extern void kvmppc_core_queue_machine_check(struct kvm_vcpu *vcpu, ulong flags); 136 extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags); 137 extern void kvmppc_core_queue_fpunavail(struct kvm_vcpu *vcpu); 138 extern void kvmppc_core_queue_vec_unavail(struct kvm_vcpu *vcpu); 139 extern void kvmppc_core_queue_vsx_unavail(struct kvm_vcpu *vcpu); 140 extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu); 141 extern void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu); 142 extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu, 143 struct kvm_interrupt *irq); 144 extern void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu); 145 extern void kvmppc_core_queue_dtlb_miss(struct kvm_vcpu *vcpu, ulong dear_flags, 146 ulong esr_flags); 147 extern void kvmppc_core_queue_data_storage(struct kvm_vcpu *vcpu, 148 ulong dear_flags, 149 ulong esr_flags); 150 extern void kvmppc_core_queue_itlb_miss(struct kvm_vcpu *vcpu); 151 extern void kvmppc_core_queue_inst_storage(struct kvm_vcpu *vcpu, 152 ulong esr_flags); 153 extern void kvmppc_core_flush_tlb(struct kvm_vcpu *vcpu); 154 extern int kvmppc_core_check_requests(struct kvm_vcpu *vcpu); 155 156 extern int kvmppc_booke_init(void); 157 extern void kvmppc_booke_exit(void); 158 159 extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu); 160 extern int kvmppc_kvm_pv(struct kvm_vcpu *vcpu); 161 extern void kvmppc_map_magic(struct kvm_vcpu *vcpu); 162 163 extern int kvmppc_allocate_hpt(struct kvm_hpt_info *info, u32 order); 164 extern void kvmppc_set_hpt(struct kvm *kvm, struct kvm_hpt_info *info); 165 extern long kvmppc_alloc_reset_hpt(struct kvm *kvm, int order); 166 extern void kvmppc_free_hpt(struct kvm_hpt_info *info); 167 extern void kvmppc_rmap_reset(struct kvm *kvm); 168 extern long kvmppc_prepare_vrma(struct kvm *kvm, 169 struct kvm_userspace_memory_region *mem); 170 extern void kvmppc_map_vrma(struct kvm_vcpu *vcpu, 171 struct kvm_memory_slot *memslot, unsigned long porder); 172 extern int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu); 173 extern long kvm_spapr_tce_attach_iommu_group(struct kvm *kvm, int tablefd, 174 struct iommu_group *grp); 175 extern void kvm_spapr_tce_release_iommu_group(struct kvm *kvm, 176 struct iommu_group *grp); 177 extern int kvmppc_switch_mmu_to_hpt(struct kvm *kvm); 178 extern int kvmppc_switch_mmu_to_radix(struct kvm *kvm); 179 extern void kvmppc_setup_partition_table(struct kvm *kvm); 180 181 extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm, 182 struct kvm_create_spapr_tce_64 *args); 183 extern struct kvmppc_spapr_tce_table *kvmppc_find_table( 184 struct kvm *kvm, unsigned long liobn); 185 #define kvmppc_ioba_validate(stt, ioba, npages) \ 186 (iommu_tce_check_ioba((stt)->page_shift, (stt)->offset, \ 187 (stt)->size, (ioba), (npages)) ? \ 188 H_PARAMETER : H_SUCCESS) 189 extern long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn, 190 unsigned long ioba, unsigned long tce); 191 extern long kvmppc_h_put_tce_indirect(struct kvm_vcpu *vcpu, 192 unsigned long liobn, unsigned long ioba, 193 unsigned long tce_list, unsigned long npages); 194 extern long kvmppc_h_stuff_tce(struct kvm_vcpu *vcpu, 195 unsigned long liobn, unsigned long ioba, 196 unsigned long tce_value, unsigned long npages); 197 extern long kvmppc_h_get_tce(struct kvm_vcpu *vcpu, unsigned long liobn, 198 unsigned long ioba); 199 extern struct page *kvm_alloc_hpt_cma(unsigned long nr_pages); 200 extern void kvm_free_hpt_cma(struct page *page, unsigned long nr_pages); 201 extern int kvmppc_core_init_vm(struct kvm *kvm); 202 extern void kvmppc_core_destroy_vm(struct kvm *kvm); 203 extern void kvmppc_core_free_memslot(struct kvm *kvm, 204 struct kvm_memory_slot *free, 205 struct kvm_memory_slot *dont); 206 extern int kvmppc_core_create_memslot(struct kvm *kvm, 207 struct kvm_memory_slot *slot, 208 unsigned long npages); 209 extern int kvmppc_core_prepare_memory_region(struct kvm *kvm, 210 struct kvm_memory_slot *memslot, 211 const struct kvm_userspace_memory_region *mem); 212 extern void kvmppc_core_commit_memory_region(struct kvm *kvm, 213 const struct kvm_userspace_memory_region *mem, 214 const struct kvm_memory_slot *old, 215 const struct kvm_memory_slot *new, 216 enum kvm_mr_change change); 217 extern int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm, 218 struct kvm_ppc_smmu_info *info); 219 extern void kvmppc_core_flush_memslot(struct kvm *kvm, 220 struct kvm_memory_slot *memslot); 221 222 extern int kvmppc_bookehv_init(void); 223 extern void kvmppc_bookehv_exit(void); 224 225 extern int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu); 226 227 extern int kvm_vm_ioctl_get_htab_fd(struct kvm *kvm, struct kvm_get_htab_fd *); 228 extern long kvm_vm_ioctl_resize_hpt_prepare(struct kvm *kvm, 229 struct kvm_ppc_resize_hpt *rhpt); 230 extern long kvm_vm_ioctl_resize_hpt_commit(struct kvm *kvm, 231 struct kvm_ppc_resize_hpt *rhpt); 232 233 int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq); 234 235 extern int kvm_vm_ioctl_rtas_define_token(struct kvm *kvm, void __user *argp); 236 extern int kvmppc_rtas_hcall(struct kvm_vcpu *vcpu); 237 extern void kvmppc_rtas_tokens_free(struct kvm *kvm); 238 239 extern int kvmppc_xics_set_xive(struct kvm *kvm, u32 irq, u32 server, 240 u32 priority); 241 extern int kvmppc_xics_get_xive(struct kvm *kvm, u32 irq, u32 *server, 242 u32 *priority); 243 extern int kvmppc_xics_int_on(struct kvm *kvm, u32 irq); 244 extern int kvmppc_xics_int_off(struct kvm *kvm, u32 irq); 245 246 void kvmppc_core_dequeue_debug(struct kvm_vcpu *vcpu); 247 void kvmppc_core_queue_debug(struct kvm_vcpu *vcpu); 248 249 union kvmppc_one_reg { 250 u32 wval; 251 u64 dval; 252 vector128 vval; 253 u64 vsxval[2]; 254 u32 vsx32val[4]; 255 u16 vsx16val[8]; 256 u8 vsx8val[16]; 257 struct { 258 u64 addr; 259 u64 length; 260 } vpaval; 261 u64 xive_timaval[2]; 262 }; 263 264 struct kvmppc_ops { 265 struct module *owner; 266 int (*get_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 267 int (*set_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 268 int (*get_one_reg)(struct kvm_vcpu *vcpu, u64 id, 269 union kvmppc_one_reg *val); 270 int (*set_one_reg)(struct kvm_vcpu *vcpu, u64 id, 271 union kvmppc_one_reg *val); 272 void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu); 273 void (*vcpu_put)(struct kvm_vcpu *vcpu); 274 void (*inject_interrupt)(struct kvm_vcpu *vcpu, int vec, u64 srr1_flags); 275 void (*set_msr)(struct kvm_vcpu *vcpu, u64 msr); 276 int (*vcpu_run)(struct kvm_run *run, struct kvm_vcpu *vcpu); 277 struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned int id); 278 void (*vcpu_free)(struct kvm_vcpu *vcpu); 279 int (*check_requests)(struct kvm_vcpu *vcpu); 280 int (*get_dirty_log)(struct kvm *kvm, struct kvm_dirty_log *log); 281 void (*flush_memslot)(struct kvm *kvm, struct kvm_memory_slot *memslot); 282 int (*prepare_memory_region)(struct kvm *kvm, 283 struct kvm_memory_slot *memslot, 284 const struct kvm_userspace_memory_region *mem); 285 void (*commit_memory_region)(struct kvm *kvm, 286 const struct kvm_userspace_memory_region *mem, 287 const struct kvm_memory_slot *old, 288 const struct kvm_memory_slot *new, 289 enum kvm_mr_change change); 290 int (*unmap_hva_range)(struct kvm *kvm, unsigned long start, 291 unsigned long end); 292 int (*age_hva)(struct kvm *kvm, unsigned long start, unsigned long end); 293 int (*test_age_hva)(struct kvm *kvm, unsigned long hva); 294 void (*set_spte_hva)(struct kvm *kvm, unsigned long hva, pte_t pte); 295 void (*mmu_destroy)(struct kvm_vcpu *vcpu); 296 void (*free_memslot)(struct kvm_memory_slot *free, 297 struct kvm_memory_slot *dont); 298 int (*create_memslot)(struct kvm_memory_slot *slot, 299 unsigned long npages); 300 int (*init_vm)(struct kvm *kvm); 301 void (*destroy_vm)(struct kvm *kvm); 302 int (*get_smmu_info)(struct kvm *kvm, struct kvm_ppc_smmu_info *info); 303 int (*emulate_op)(struct kvm_run *run, struct kvm_vcpu *vcpu, 304 unsigned int inst, int *advance); 305 int (*emulate_mtspr)(struct kvm_vcpu *vcpu, int sprn, ulong spr_val); 306 int (*emulate_mfspr)(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val); 307 void (*fast_vcpu_kick)(struct kvm_vcpu *vcpu); 308 long (*arch_vm_ioctl)(struct file *filp, unsigned int ioctl, 309 unsigned long arg); 310 int (*hcall_implemented)(unsigned long hcall); 311 int (*irq_bypass_add_producer)(struct irq_bypass_consumer *, 312 struct irq_bypass_producer *); 313 void (*irq_bypass_del_producer)(struct irq_bypass_consumer *, 314 struct irq_bypass_producer *); 315 int (*configure_mmu)(struct kvm *kvm, struct kvm_ppc_mmuv3_cfg *cfg); 316 int (*get_rmmu_info)(struct kvm *kvm, struct kvm_ppc_rmmu_info *info); 317 int (*set_smt_mode)(struct kvm *kvm, unsigned long mode, 318 unsigned long flags); 319 void (*giveup_ext)(struct kvm_vcpu *vcpu, ulong msr); 320 int (*enable_nested)(struct kvm *kvm); 321 int (*load_from_eaddr)(struct kvm_vcpu *vcpu, ulong *eaddr, void *ptr, 322 int size); 323 int (*store_to_eaddr)(struct kvm_vcpu *vcpu, ulong *eaddr, void *ptr, 324 int size); 325 int (*svm_off)(struct kvm *kvm); 326 }; 327 328 extern struct kvmppc_ops *kvmppc_hv_ops; 329 extern struct kvmppc_ops *kvmppc_pr_ops; 330 331 static inline int kvmppc_get_last_inst(struct kvm_vcpu *vcpu, 332 enum instruction_fetch_type type, u32 *inst) 333 { 334 int ret = EMULATE_DONE; 335 u32 fetched_inst; 336 337 /* Load the instruction manually if it failed to do so in the 338 * exit path */ 339 if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED) 340 ret = kvmppc_load_last_inst(vcpu, type, &vcpu->arch.last_inst); 341 342 /* Write fetch_failed unswapped if the fetch failed */ 343 if (ret == EMULATE_DONE) 344 fetched_inst = kvmppc_need_byteswap(vcpu) ? 345 swab32(vcpu->arch.last_inst) : 346 vcpu->arch.last_inst; 347 else 348 fetched_inst = vcpu->arch.last_inst; 349 350 *inst = fetched_inst; 351 return ret; 352 } 353 354 static inline bool is_kvmppc_hv_enabled(struct kvm *kvm) 355 { 356 return kvm->arch.kvm_ops == kvmppc_hv_ops; 357 } 358 359 extern int kvmppc_hwrng_present(void); 360 361 /* 362 * Cuts out inst bits with ordering according to spec. 363 * That means the leftmost bit is zero. All given bits are included. 364 */ 365 static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb) 366 { 367 u32 r; 368 u32 mask; 369 370 BUG_ON(msb > lsb); 371 372 mask = (1 << (lsb - msb + 1)) - 1; 373 r = (inst >> (63 - lsb)) & mask; 374 375 return r; 376 } 377 378 /* 379 * Replaces inst bits with ordering according to spec. 380 */ 381 static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value) 382 { 383 u32 r; 384 u32 mask; 385 386 BUG_ON(msb > lsb); 387 388 mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb); 389 r = (inst & ~mask) | ((value << (63 - lsb)) & mask); 390 391 return r; 392 } 393 394 #define one_reg_size(id) \ 395 (1ul << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT)) 396 397 #define get_reg_val(id, reg) ({ \ 398 union kvmppc_one_reg __u; \ 399 switch (one_reg_size(id)) { \ 400 case 4: __u.wval = (reg); break; \ 401 case 8: __u.dval = (reg); break; \ 402 default: BUG(); \ 403 } \ 404 __u; \ 405 }) 406 407 408 #define set_reg_val(id, val) ({ \ 409 u64 __v; \ 410 switch (one_reg_size(id)) { \ 411 case 4: __v = (val).wval; break; \ 412 case 8: __v = (val).dval; break; \ 413 default: BUG(); \ 414 } \ 415 __v; \ 416 }) 417 418 int kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 419 int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 420 421 int kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 422 int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 423 424 int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg); 425 int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg); 426 int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *); 427 int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *); 428 429 void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid); 430 431 struct openpic; 432 433 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 434 extern void kvm_cma_reserve(void) __init; 435 static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr) 436 { 437 paca_ptrs[cpu]->kvm_hstate.xics_phys = (void __iomem *)addr; 438 } 439 440 static inline void kvmppc_set_xive_tima(int cpu, 441 unsigned long phys_addr, 442 void __iomem *virt_addr) 443 { 444 paca_ptrs[cpu]->kvm_hstate.xive_tima_phys = (void __iomem *)phys_addr; 445 paca_ptrs[cpu]->kvm_hstate.xive_tima_virt = virt_addr; 446 } 447 448 static inline u32 kvmppc_get_xics_latch(void) 449 { 450 u32 xirr; 451 452 xirr = get_paca()->kvm_hstate.saved_xirr; 453 get_paca()->kvm_hstate.saved_xirr = 0; 454 return xirr; 455 } 456 457 /* 458 * To avoid the need to unnecessarily exit fully to the host kernel, an IPI to 459 * a CPU thread that's running/napping inside of a guest is by default regarded 460 * as a request to wake the CPU (if needed) and continue execution within the 461 * guest, potentially to process new state like externally-generated 462 * interrupts or IPIs sent from within the guest itself (e.g. H_PROD/H_IPI). 463 * 464 * To force an exit to the host kernel, kvmppc_set_host_ipi() must be called 465 * prior to issuing the IPI to set the corresponding 'host_ipi' flag in the 466 * target CPU's PACA. To avoid unnecessary exits to the host, this flag should 467 * be immediately cleared via kvmppc_clear_host_ipi() by the IPI handler on 468 * the receiving side prior to processing the IPI work. 469 * 470 * NOTE: 471 * 472 * We currently issue an smp_mb() at the beginning of kvmppc_set_host_ipi(). 473 * This is to guard against sequences such as the following: 474 * 475 * CPU 476 * X: smp_muxed_ipi_set_message(): 477 * X: smp_mb() 478 * X: message[RESCHEDULE] = 1 479 * X: doorbell_global_ipi(42): 480 * X: kvmppc_set_host_ipi(42) 481 * X: ppc_msgsnd_sync()/smp_mb() 482 * X: ppc_msgsnd() -> 42 483 * 42: doorbell_exception(): // from CPU X 484 * 42: ppc_msgsync() 485 * 105: smp_muxed_ipi_set_message(): 486 * 105: smb_mb() 487 * // STORE DEFERRED DUE TO RE-ORDERING 488 * --105: message[CALL_FUNCTION] = 1 489 * | 105: doorbell_global_ipi(42): 490 * | 105: kvmppc_set_host_ipi(42) 491 * | 42: kvmppc_clear_host_ipi(42) 492 * | 42: smp_ipi_demux_relaxed() 493 * | 42: // returns to executing guest 494 * | // RE-ORDERED STORE COMPLETES 495 * ->105: message[CALL_FUNCTION] = 1 496 * 105: ppc_msgsnd_sync()/smp_mb() 497 * 105: ppc_msgsnd() -> 42 498 * 42: local_paca->kvm_hstate.host_ipi == 0 // IPI ignored 499 * 105: // hangs waiting on 42 to process messages/call_single_queue 500 * 501 * We also issue an smp_mb() at the end of kvmppc_clear_host_ipi(). This is 502 * to guard against sequences such as the following (as well as to create 503 * a read-side pairing with the barrier in kvmppc_set_host_ipi()): 504 * 505 * CPU 506 * X: smp_muxed_ipi_set_message(): 507 * X: smp_mb() 508 * X: message[RESCHEDULE] = 1 509 * X: doorbell_global_ipi(42): 510 * X: kvmppc_set_host_ipi(42) 511 * X: ppc_msgsnd_sync()/smp_mb() 512 * X: ppc_msgsnd() -> 42 513 * 42: doorbell_exception(): // from CPU X 514 * 42: ppc_msgsync() 515 * // STORE DEFERRED DUE TO RE-ORDERING 516 * -- 42: kvmppc_clear_host_ipi(42) 517 * | 42: smp_ipi_demux_relaxed() 518 * | 105: smp_muxed_ipi_set_message(): 519 * | 105: smb_mb() 520 * | 105: message[CALL_FUNCTION] = 1 521 * | 105: doorbell_global_ipi(42): 522 * | 105: kvmppc_set_host_ipi(42) 523 * | // RE-ORDERED STORE COMPLETES 524 * -> 42: kvmppc_clear_host_ipi(42) 525 * 42: // returns to executing guest 526 * 105: ppc_msgsnd_sync()/smp_mb() 527 * 105: ppc_msgsnd() -> 42 528 * 42: local_paca->kvm_hstate.host_ipi == 0 // IPI ignored 529 * 105: // hangs waiting on 42 to process messages/call_single_queue 530 */ 531 static inline void kvmppc_set_host_ipi(int cpu) 532 { 533 /* 534 * order stores of IPI messages vs. setting of host_ipi flag 535 * 536 * pairs with the barrier in kvmppc_clear_host_ipi() 537 */ 538 smp_mb(); 539 paca_ptrs[cpu]->kvm_hstate.host_ipi = 1; 540 } 541 542 static inline void kvmppc_clear_host_ipi(int cpu) 543 { 544 paca_ptrs[cpu]->kvm_hstate.host_ipi = 0; 545 /* 546 * order clearing of host_ipi flag vs. processing of IPI messages 547 * 548 * pairs with the barrier in kvmppc_set_host_ipi() 549 */ 550 smp_mb(); 551 } 552 553 static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu) 554 { 555 vcpu->kvm->arch.kvm_ops->fast_vcpu_kick(vcpu); 556 } 557 558 extern void kvm_hv_vm_activated(void); 559 extern void kvm_hv_vm_deactivated(void); 560 extern bool kvm_hv_mode_active(void); 561 562 extern void kvmppc_check_need_tlb_flush(struct kvm *kvm, int pcpu, 563 struct kvm_nested_guest *nested); 564 565 #else 566 static inline void __init kvm_cma_reserve(void) 567 {} 568 569 static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr) 570 {} 571 572 static inline void kvmppc_set_xive_tima(int cpu, 573 unsigned long phys_addr, 574 void __iomem *virt_addr) 575 {} 576 577 static inline u32 kvmppc_get_xics_latch(void) 578 { 579 return 0; 580 } 581 582 static inline void kvmppc_set_host_ipi(int cpu) 583 {} 584 585 static inline void kvmppc_clear_host_ipi(int cpu) 586 {} 587 588 static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu) 589 { 590 kvm_vcpu_kick(vcpu); 591 } 592 593 static inline bool kvm_hv_mode_active(void) { return false; } 594 595 #endif 596 597 #ifdef CONFIG_KVM_XICS 598 static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu) 599 { 600 return vcpu->arch.irq_type == KVMPPC_IRQ_XICS; 601 } 602 603 static inline struct kvmppc_passthru_irqmap *kvmppc_get_passthru_irqmap( 604 struct kvm *kvm) 605 { 606 if (kvm && kvm_irq_bypass) 607 return kvm->arch.pimap; 608 return NULL; 609 } 610 611 extern void kvmppc_alloc_host_rm_ops(void); 612 extern void kvmppc_free_host_rm_ops(void); 613 extern void kvmppc_free_pimap(struct kvm *kvm); 614 extern int kvmppc_xics_rm_complete(struct kvm_vcpu *vcpu, u32 hcall); 615 extern void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu); 616 extern int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd); 617 extern u64 kvmppc_xics_get_icp(struct kvm_vcpu *vcpu); 618 extern int kvmppc_xics_set_icp(struct kvm_vcpu *vcpu, u64 icpval); 619 extern int kvmppc_xics_connect_vcpu(struct kvm_device *dev, 620 struct kvm_vcpu *vcpu, u32 cpu); 621 extern void kvmppc_xics_ipi_action(void); 622 extern void kvmppc_xics_set_mapped(struct kvm *kvm, unsigned long guest_irq, 623 unsigned long host_irq); 624 extern void kvmppc_xics_clr_mapped(struct kvm *kvm, unsigned long guest_irq, 625 unsigned long host_irq); 626 extern long kvmppc_deliver_irq_passthru(struct kvm_vcpu *vcpu, __be32 xirr, 627 struct kvmppc_irq_map *irq_map, 628 struct kvmppc_passthru_irqmap *pimap, 629 bool *again); 630 631 extern int kvmppc_xics_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, 632 int level, bool line_status); 633 634 extern int h_ipi_redirect; 635 #else 636 static inline struct kvmppc_passthru_irqmap *kvmppc_get_passthru_irqmap( 637 struct kvm *kvm) 638 { return NULL; } 639 static inline void kvmppc_alloc_host_rm_ops(void) {}; 640 static inline void kvmppc_free_host_rm_ops(void) {}; 641 static inline void kvmppc_free_pimap(struct kvm *kvm) {}; 642 static inline int kvmppc_xics_rm_complete(struct kvm_vcpu *vcpu, u32 hcall) 643 { return 0; } 644 static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu) 645 { return 0; } 646 static inline void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu) { } 647 static inline int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd) 648 { return 0; } 649 #endif 650 651 #ifdef CONFIG_KVM_XIVE 652 /* 653 * Below the first "xive" is the "eXternal Interrupt Virtualization Engine" 654 * ie. P9 new interrupt controller, while the second "xive" is the legacy 655 * "eXternal Interrupt Vector Entry" which is the configuration of an 656 * interrupt on the "xics" interrupt controller on P8 and earlier. Those 657 * two function consume or produce a legacy "XIVE" state from the 658 * new "XIVE" interrupt controller. 659 */ 660 extern int kvmppc_xive_set_xive(struct kvm *kvm, u32 irq, u32 server, 661 u32 priority); 662 extern int kvmppc_xive_get_xive(struct kvm *kvm, u32 irq, u32 *server, 663 u32 *priority); 664 extern int kvmppc_xive_int_on(struct kvm *kvm, u32 irq); 665 extern int kvmppc_xive_int_off(struct kvm *kvm, u32 irq); 666 extern void kvmppc_xive_init_module(void); 667 extern void kvmppc_xive_exit_module(void); 668 669 extern int kvmppc_xive_connect_vcpu(struct kvm_device *dev, 670 struct kvm_vcpu *vcpu, u32 cpu); 671 extern void kvmppc_xive_cleanup_vcpu(struct kvm_vcpu *vcpu); 672 extern int kvmppc_xive_set_mapped(struct kvm *kvm, unsigned long guest_irq, 673 struct irq_desc *host_desc); 674 extern int kvmppc_xive_clr_mapped(struct kvm *kvm, unsigned long guest_irq, 675 struct irq_desc *host_desc); 676 extern u64 kvmppc_xive_get_icp(struct kvm_vcpu *vcpu); 677 extern int kvmppc_xive_set_icp(struct kvm_vcpu *vcpu, u64 icpval); 678 679 extern int kvmppc_xive_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, 680 int level, bool line_status); 681 extern void kvmppc_xive_push_vcpu(struct kvm_vcpu *vcpu); 682 683 static inline int kvmppc_xive_enabled(struct kvm_vcpu *vcpu) 684 { 685 return vcpu->arch.irq_type == KVMPPC_IRQ_XIVE; 686 } 687 688 extern int kvmppc_xive_native_connect_vcpu(struct kvm_device *dev, 689 struct kvm_vcpu *vcpu, u32 cpu); 690 extern void kvmppc_xive_native_cleanup_vcpu(struct kvm_vcpu *vcpu); 691 extern void kvmppc_xive_native_init_module(void); 692 extern void kvmppc_xive_native_exit_module(void); 693 extern int kvmppc_xive_native_get_vp(struct kvm_vcpu *vcpu, 694 union kvmppc_one_reg *val); 695 extern int kvmppc_xive_native_set_vp(struct kvm_vcpu *vcpu, 696 union kvmppc_one_reg *val); 697 extern bool kvmppc_xive_native_supported(void); 698 699 #else 700 static inline int kvmppc_xive_set_xive(struct kvm *kvm, u32 irq, u32 server, 701 u32 priority) { return -1; } 702 static inline int kvmppc_xive_get_xive(struct kvm *kvm, u32 irq, u32 *server, 703 u32 *priority) { return -1; } 704 static inline int kvmppc_xive_int_on(struct kvm *kvm, u32 irq) { return -1; } 705 static inline int kvmppc_xive_int_off(struct kvm *kvm, u32 irq) { return -1; } 706 static inline void kvmppc_xive_init_module(void) { } 707 static inline void kvmppc_xive_exit_module(void) { } 708 709 static inline int kvmppc_xive_connect_vcpu(struct kvm_device *dev, 710 struct kvm_vcpu *vcpu, u32 cpu) { return -EBUSY; } 711 static inline void kvmppc_xive_cleanup_vcpu(struct kvm_vcpu *vcpu) { } 712 static inline int kvmppc_xive_set_mapped(struct kvm *kvm, unsigned long guest_irq, 713 struct irq_desc *host_desc) { return -ENODEV; } 714 static inline int kvmppc_xive_clr_mapped(struct kvm *kvm, unsigned long guest_irq, 715 struct irq_desc *host_desc) { return -ENODEV; } 716 static inline u64 kvmppc_xive_get_icp(struct kvm_vcpu *vcpu) { return 0; } 717 static inline int kvmppc_xive_set_icp(struct kvm_vcpu *vcpu, u64 icpval) { return -ENOENT; } 718 719 static inline int kvmppc_xive_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, 720 int level, bool line_status) { return -ENODEV; } 721 static inline void kvmppc_xive_push_vcpu(struct kvm_vcpu *vcpu) { } 722 723 static inline int kvmppc_xive_enabled(struct kvm_vcpu *vcpu) 724 { return 0; } 725 static inline int kvmppc_xive_native_connect_vcpu(struct kvm_device *dev, 726 struct kvm_vcpu *vcpu, u32 cpu) { return -EBUSY; } 727 static inline void kvmppc_xive_native_cleanup_vcpu(struct kvm_vcpu *vcpu) { } 728 static inline void kvmppc_xive_native_init_module(void) { } 729 static inline void kvmppc_xive_native_exit_module(void) { } 730 static inline int kvmppc_xive_native_get_vp(struct kvm_vcpu *vcpu, 731 union kvmppc_one_reg *val) 732 { return 0; } 733 static inline int kvmppc_xive_native_set_vp(struct kvm_vcpu *vcpu, 734 union kvmppc_one_reg *val) 735 { return -ENOENT; } 736 737 #endif /* CONFIG_KVM_XIVE */ 738 739 #if defined(CONFIG_PPC_POWERNV) && defined(CONFIG_KVM_BOOK3S_64_HANDLER) 740 static inline bool xics_on_xive(void) 741 { 742 return xive_enabled() && cpu_has_feature(CPU_FTR_HVMODE); 743 } 744 #else 745 static inline bool xics_on_xive(void) 746 { 747 return false; 748 } 749 #endif 750 751 /* 752 * Prototypes for functions called only from assembler code. 753 * Having prototypes reduces sparse errors. 754 */ 755 long kvmppc_rm_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn, 756 unsigned long ioba, unsigned long tce); 757 long kvmppc_rm_h_put_tce_indirect(struct kvm_vcpu *vcpu, 758 unsigned long liobn, unsigned long ioba, 759 unsigned long tce_list, unsigned long npages); 760 long kvmppc_rm_h_stuff_tce(struct kvm_vcpu *vcpu, 761 unsigned long liobn, unsigned long ioba, 762 unsigned long tce_value, unsigned long npages); 763 long int kvmppc_rm_h_confer(struct kvm_vcpu *vcpu, int target, 764 unsigned int yield_count); 765 long kvmppc_h_random(struct kvm_vcpu *vcpu); 766 void kvmhv_commence_exit(int trap); 767 void kvmppc_realmode_machine_check(struct kvm_vcpu *vcpu); 768 void kvmppc_subcore_enter_guest(void); 769 void kvmppc_subcore_exit_guest(void); 770 long kvmppc_realmode_hmi_handler(void); 771 long kvmppc_h_enter(struct kvm_vcpu *vcpu, unsigned long flags, 772 long pte_index, unsigned long pteh, unsigned long ptel); 773 long kvmppc_h_remove(struct kvm_vcpu *vcpu, unsigned long flags, 774 unsigned long pte_index, unsigned long avpn); 775 long kvmppc_h_bulk_remove(struct kvm_vcpu *vcpu); 776 long kvmppc_h_protect(struct kvm_vcpu *vcpu, unsigned long flags, 777 unsigned long pte_index, unsigned long avpn, 778 unsigned long va); 779 long kvmppc_h_read(struct kvm_vcpu *vcpu, unsigned long flags, 780 unsigned long pte_index); 781 long kvmppc_h_clear_ref(struct kvm_vcpu *vcpu, unsigned long flags, 782 unsigned long pte_index); 783 long kvmppc_h_clear_mod(struct kvm_vcpu *vcpu, unsigned long flags, 784 unsigned long pte_index); 785 long kvmppc_rm_h_page_init(struct kvm_vcpu *vcpu, unsigned long flags, 786 unsigned long dest, unsigned long src); 787 long kvmppc_hpte_hv_fault(struct kvm_vcpu *vcpu, unsigned long addr, 788 unsigned long slb_v, unsigned int status, bool data); 789 unsigned long kvmppc_rm_h_xirr(struct kvm_vcpu *vcpu); 790 unsigned long kvmppc_rm_h_xirr_x(struct kvm_vcpu *vcpu); 791 unsigned long kvmppc_rm_h_ipoll(struct kvm_vcpu *vcpu, unsigned long server); 792 int kvmppc_rm_h_ipi(struct kvm_vcpu *vcpu, unsigned long server, 793 unsigned long mfrr); 794 int kvmppc_rm_h_cppr(struct kvm_vcpu *vcpu, unsigned long cppr); 795 int kvmppc_rm_h_eoi(struct kvm_vcpu *vcpu, unsigned long xirr); 796 void kvmppc_guest_entry_inject_int(struct kvm_vcpu *vcpu); 797 798 /* 799 * Host-side operations we want to set up while running in real 800 * mode in the guest operating on the xics. 801 * Currently only VCPU wakeup is supported. 802 */ 803 804 union kvmppc_rm_state { 805 unsigned long raw; 806 struct { 807 u32 in_host; 808 u32 rm_action; 809 }; 810 }; 811 812 struct kvmppc_host_rm_core { 813 union kvmppc_rm_state rm_state; 814 void *rm_data; 815 char pad[112]; 816 }; 817 818 struct kvmppc_host_rm_ops { 819 struct kvmppc_host_rm_core *rm_core; 820 void (*vcpu_kick)(struct kvm_vcpu *vcpu); 821 }; 822 823 extern struct kvmppc_host_rm_ops *kvmppc_host_rm_ops_hv; 824 825 static inline unsigned long kvmppc_get_epr(struct kvm_vcpu *vcpu) 826 { 827 #ifdef CONFIG_KVM_BOOKE_HV 828 return mfspr(SPRN_GEPR); 829 #elif defined(CONFIG_BOOKE) 830 return vcpu->arch.epr; 831 #else 832 return 0; 833 #endif 834 } 835 836 static inline void kvmppc_set_epr(struct kvm_vcpu *vcpu, u32 epr) 837 { 838 #ifdef CONFIG_KVM_BOOKE_HV 839 mtspr(SPRN_GEPR, epr); 840 #elif defined(CONFIG_BOOKE) 841 vcpu->arch.epr = epr; 842 #endif 843 } 844 845 #ifdef CONFIG_KVM_MPIC 846 847 void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu); 848 int kvmppc_mpic_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu, 849 u32 cpu); 850 void kvmppc_mpic_disconnect_vcpu(struct openpic *opp, struct kvm_vcpu *vcpu); 851 852 #else 853 854 static inline void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu) 855 { 856 } 857 858 static inline int kvmppc_mpic_connect_vcpu(struct kvm_device *dev, 859 struct kvm_vcpu *vcpu, u32 cpu) 860 { 861 return -EINVAL; 862 } 863 864 static inline void kvmppc_mpic_disconnect_vcpu(struct openpic *opp, 865 struct kvm_vcpu *vcpu) 866 { 867 } 868 869 #endif /* CONFIG_KVM_MPIC */ 870 871 int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu, 872 struct kvm_config_tlb *cfg); 873 int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu *vcpu, 874 struct kvm_dirty_tlb *cfg); 875 876 long kvmppc_alloc_lpid(void); 877 void kvmppc_claim_lpid(long lpid); 878 void kvmppc_free_lpid(long lpid); 879 void kvmppc_init_lpid(unsigned long nr_lpids); 880 881 static inline void kvmppc_mmu_flush_icache(kvm_pfn_t pfn) 882 { 883 struct page *page; 884 /* 885 * We can only access pages that the kernel maps 886 * as memory. Bail out for unmapped ones. 887 */ 888 if (!pfn_valid(pfn)) 889 return; 890 891 /* Clear i-cache for new pages */ 892 page = pfn_to_page(pfn); 893 if (!test_bit(PG_arch_1, &page->flags)) { 894 flush_dcache_icache_page(page); 895 set_bit(PG_arch_1, &page->flags); 896 } 897 } 898 899 /* 900 * Shared struct helpers. The shared struct can be little or big endian, 901 * depending on the guest endianness. So expose helpers to all of them. 902 */ 903 static inline bool kvmppc_shared_big_endian(struct kvm_vcpu *vcpu) 904 { 905 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE) 906 /* Only Book3S_64 PR supports bi-endian for now */ 907 return vcpu->arch.shared_big_endian; 908 #elif defined(CONFIG_PPC_BOOK3S_64) && defined(__LITTLE_ENDIAN__) 909 /* Book3s_64 HV on little endian is always little endian */ 910 return false; 911 #else 912 return true; 913 #endif 914 } 915 916 #define SPRNG_WRAPPER_GET(reg, bookehv_spr) \ 917 static inline ulong kvmppc_get_##reg(struct kvm_vcpu *vcpu) \ 918 { \ 919 return mfspr(bookehv_spr); \ 920 } \ 921 922 #define SPRNG_WRAPPER_SET(reg, bookehv_spr) \ 923 static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, ulong val) \ 924 { \ 925 mtspr(bookehv_spr, val); \ 926 } \ 927 928 #define SHARED_WRAPPER_GET(reg, size) \ 929 static inline u##size kvmppc_get_##reg(struct kvm_vcpu *vcpu) \ 930 { \ 931 if (kvmppc_shared_big_endian(vcpu)) \ 932 return be##size##_to_cpu(vcpu->arch.shared->reg); \ 933 else \ 934 return le##size##_to_cpu(vcpu->arch.shared->reg); \ 935 } \ 936 937 #define SHARED_WRAPPER_SET(reg, size) \ 938 static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, u##size val) \ 939 { \ 940 if (kvmppc_shared_big_endian(vcpu)) \ 941 vcpu->arch.shared->reg = cpu_to_be##size(val); \ 942 else \ 943 vcpu->arch.shared->reg = cpu_to_le##size(val); \ 944 } \ 945 946 #define SHARED_WRAPPER(reg, size) \ 947 SHARED_WRAPPER_GET(reg, size) \ 948 SHARED_WRAPPER_SET(reg, size) \ 949 950 #define SPRNG_WRAPPER(reg, bookehv_spr) \ 951 SPRNG_WRAPPER_GET(reg, bookehv_spr) \ 952 SPRNG_WRAPPER_SET(reg, bookehv_spr) \ 953 954 #ifdef CONFIG_KVM_BOOKE_HV 955 956 #define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \ 957 SPRNG_WRAPPER(reg, bookehv_spr) \ 958 959 #else 960 961 #define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \ 962 SHARED_WRAPPER(reg, size) \ 963 964 #endif 965 966 SHARED_WRAPPER(critical, 64) 967 SHARED_SPRNG_WRAPPER(sprg0, 64, SPRN_GSPRG0) 968 SHARED_SPRNG_WRAPPER(sprg1, 64, SPRN_GSPRG1) 969 SHARED_SPRNG_WRAPPER(sprg2, 64, SPRN_GSPRG2) 970 SHARED_SPRNG_WRAPPER(sprg3, 64, SPRN_GSPRG3) 971 SHARED_SPRNG_WRAPPER(srr0, 64, SPRN_GSRR0) 972 SHARED_SPRNG_WRAPPER(srr1, 64, SPRN_GSRR1) 973 SHARED_SPRNG_WRAPPER(dar, 64, SPRN_GDEAR) 974 SHARED_SPRNG_WRAPPER(esr, 64, SPRN_GESR) 975 SHARED_WRAPPER_GET(msr, 64) 976 static inline void kvmppc_set_msr_fast(struct kvm_vcpu *vcpu, u64 val) 977 { 978 if (kvmppc_shared_big_endian(vcpu)) 979 vcpu->arch.shared->msr = cpu_to_be64(val); 980 else 981 vcpu->arch.shared->msr = cpu_to_le64(val); 982 } 983 SHARED_WRAPPER(dsisr, 32) 984 SHARED_WRAPPER(int_pending, 32) 985 SHARED_WRAPPER(sprg4, 64) 986 SHARED_WRAPPER(sprg5, 64) 987 SHARED_WRAPPER(sprg6, 64) 988 SHARED_WRAPPER(sprg7, 64) 989 990 static inline u32 kvmppc_get_sr(struct kvm_vcpu *vcpu, int nr) 991 { 992 if (kvmppc_shared_big_endian(vcpu)) 993 return be32_to_cpu(vcpu->arch.shared->sr[nr]); 994 else 995 return le32_to_cpu(vcpu->arch.shared->sr[nr]); 996 } 997 998 static inline void kvmppc_set_sr(struct kvm_vcpu *vcpu, int nr, u32 val) 999 { 1000 if (kvmppc_shared_big_endian(vcpu)) 1001 vcpu->arch.shared->sr[nr] = cpu_to_be32(val); 1002 else 1003 vcpu->arch.shared->sr[nr] = cpu_to_le32(val); 1004 } 1005 1006 /* 1007 * Please call after prepare_to_enter. This function puts the lazy ee and irq 1008 * disabled tracking state back to normal mode, without actually enabling 1009 * interrupts. 1010 */ 1011 static inline void kvmppc_fix_ee_before_entry(void) 1012 { 1013 trace_hardirqs_on(); 1014 1015 #ifdef CONFIG_PPC64 1016 /* 1017 * To avoid races, the caller must have gone directly from having 1018 * interrupts fully-enabled to hard-disabled. 1019 */ 1020 WARN_ON(local_paca->irq_happened != PACA_IRQ_HARD_DIS); 1021 1022 /* Only need to enable IRQs by hard enabling them after this */ 1023 local_paca->irq_happened = 0; 1024 irq_soft_mask_set(IRQS_ENABLED); 1025 #endif 1026 } 1027 1028 static inline ulong kvmppc_get_ea_indexed(struct kvm_vcpu *vcpu, int ra, int rb) 1029 { 1030 ulong ea; 1031 ulong msr_64bit = 0; 1032 1033 ea = kvmppc_get_gpr(vcpu, rb); 1034 if (ra) 1035 ea += kvmppc_get_gpr(vcpu, ra); 1036 1037 #if defined(CONFIG_PPC_BOOK3E_64) 1038 msr_64bit = MSR_CM; 1039 #elif defined(CONFIG_PPC_BOOK3S_64) 1040 msr_64bit = MSR_SF; 1041 #endif 1042 1043 if (!(kvmppc_get_msr(vcpu) & msr_64bit)) 1044 ea = (uint32_t)ea; 1045 1046 return ea; 1047 } 1048 1049 extern void xics_wake_cpu(int cpu); 1050 1051 #endif /* __POWERPC_KVM_PPC_H__ */ 1052