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