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_vcpu *vcpu); 62 extern int __kvmppc_vcpu_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_vcpu *vcpu, 67 unsigned int rt, unsigned int bytes, 68 int is_default_endian); 69 extern int kvmppc_handle_loads(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_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_vcpu *vcpu, 76 unsigned int rt, unsigned int bytes, int is_default_endian); 77 extern int kvmppc_handle_vmx_store(struct kvm_vcpu *vcpu, 78 unsigned int rs, unsigned int bytes, int is_default_endian); 79 extern int kvmppc_handle_store(struct kvm_vcpu *vcpu, 80 u64 val, unsigned int bytes, 81 int is_default_endian); 82 extern int kvmppc_handle_vsx_store(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_vcpu *vcpu); 94 extern int kvmppc_emulate_loadstore(struct kvm_vcpu *vcpu); 95 extern int kvmppc_emulate_mmio(struct kvm_vcpu *vcpu); 96 extern void kvmppc_emulate_dec(struct kvm_vcpu *vcpu); 97 extern u32 kvmppc_get_dec(struct kvm_vcpu *vcpu, u64 tb); 98 extern void kvmppc_decrementer_func(struct kvm_vcpu *vcpu); 99 extern int kvmppc_sanity_check(struct kvm_vcpu *vcpu); 100 extern int kvmppc_subarch_vcpu_init(struct kvm_vcpu *vcpu); 101 extern void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu *vcpu); 102 103 /* Core-specific hooks */ 104 105 extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr, 106 unsigned int gtlb_idx); 107 extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid); 108 extern int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr); 109 extern int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr); 110 extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index, 111 gva_t eaddr); 112 extern void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu); 113 extern void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu); 114 extern int kvmppc_xlate(struct kvm_vcpu *vcpu, ulong eaddr, 115 enum xlate_instdata xlid, enum xlate_readwrite xlrw, 116 struct kvmppc_pte *pte); 117 118 extern int kvmppc_core_vcpu_create(struct kvm_vcpu *vcpu); 119 extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu); 120 extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu); 121 extern int kvmppc_core_check_processor_compat(void); 122 extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu, 123 struct kvm_translation *tr); 124 125 extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu); 126 extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu); 127 128 extern int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu); 129 extern int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu); 130 extern void kvmppc_core_queue_machine_check(struct kvm_vcpu *vcpu, ulong flags); 131 extern void kvmppc_core_queue_syscall(struct kvm_vcpu *vcpu); 132 extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags); 133 extern void kvmppc_core_queue_fpunavail(struct kvm_vcpu *vcpu); 134 extern void kvmppc_core_queue_vec_unavail(struct kvm_vcpu *vcpu); 135 extern void kvmppc_core_queue_vsx_unavail(struct kvm_vcpu *vcpu); 136 extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu); 137 extern void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu); 138 extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu, 139 struct kvm_interrupt *irq); 140 extern void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu); 141 extern void kvmppc_core_queue_dtlb_miss(struct kvm_vcpu *vcpu, ulong dear_flags, 142 ulong esr_flags); 143 extern void kvmppc_core_queue_data_storage(struct kvm_vcpu *vcpu, 144 ulong dear_flags, 145 ulong esr_flags); 146 extern void kvmppc_core_queue_itlb_miss(struct kvm_vcpu *vcpu); 147 extern void kvmppc_core_queue_inst_storage(struct kvm_vcpu *vcpu, 148 ulong esr_flags); 149 extern void kvmppc_core_flush_tlb(struct kvm_vcpu *vcpu); 150 extern int kvmppc_core_check_requests(struct kvm_vcpu *vcpu); 151 152 extern int kvmppc_booke_init(void); 153 extern void kvmppc_booke_exit(void); 154 155 extern int kvmppc_kvm_pv(struct kvm_vcpu *vcpu); 156 extern void kvmppc_map_magic(struct kvm_vcpu *vcpu); 157 158 extern int kvmppc_allocate_hpt(struct kvm_hpt_info *info, u32 order); 159 extern void kvmppc_set_hpt(struct kvm *kvm, struct kvm_hpt_info *info); 160 extern long kvmppc_alloc_reset_hpt(struct kvm *kvm, int order); 161 extern void kvmppc_free_hpt(struct kvm_hpt_info *info); 162 extern void kvmppc_rmap_reset(struct kvm *kvm); 163 extern void kvmppc_map_vrma(struct kvm_vcpu *vcpu, 164 struct kvm_memory_slot *memslot, unsigned long porder); 165 extern int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu); 166 extern long kvm_spapr_tce_attach_iommu_group(struct kvm *kvm, int tablefd, 167 struct iommu_group *grp); 168 extern void kvm_spapr_tce_release_iommu_group(struct kvm *kvm, 169 struct iommu_group *grp); 170 extern int kvmppc_switch_mmu_to_hpt(struct kvm *kvm); 171 extern int kvmppc_switch_mmu_to_radix(struct kvm *kvm); 172 extern void kvmppc_setup_partition_table(struct kvm *kvm); 173 174 extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm, 175 struct kvm_create_spapr_tce_64 *args); 176 #define kvmppc_ioba_validate(stt, ioba, npages) \ 177 (iommu_tce_check_ioba((stt)->page_shift, (stt)->offset, \ 178 (stt)->size, (ioba), (npages)) ? \ 179 H_PARAMETER : H_SUCCESS) 180 extern long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn, 181 unsigned long ioba, unsigned long tce); 182 extern long kvmppc_h_put_tce_indirect(struct kvm_vcpu *vcpu, 183 unsigned long liobn, unsigned long ioba, 184 unsigned long tce_list, unsigned long npages); 185 extern long kvmppc_h_stuff_tce(struct kvm_vcpu *vcpu, 186 unsigned long liobn, unsigned long ioba, 187 unsigned long tce_value, unsigned long npages); 188 extern long kvmppc_h_get_tce(struct kvm_vcpu *vcpu, unsigned long liobn, 189 unsigned long ioba); 190 extern struct page *kvm_alloc_hpt_cma(unsigned long nr_pages); 191 extern void kvm_free_hpt_cma(struct page *page, unsigned long nr_pages); 192 extern int kvmppc_core_init_vm(struct kvm *kvm); 193 extern void kvmppc_core_destroy_vm(struct kvm *kvm); 194 extern void kvmppc_core_free_memslot(struct kvm *kvm, 195 struct kvm_memory_slot *slot); 196 extern int kvmppc_core_prepare_memory_region(struct kvm *kvm, 197 const struct kvm_memory_slot *old, 198 struct kvm_memory_slot *new, 199 enum kvm_mr_change change); 200 extern void kvmppc_core_commit_memory_region(struct kvm *kvm, 201 struct kvm_memory_slot *old, 202 const struct kvm_memory_slot *new, 203 enum kvm_mr_change change); 204 extern int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm, 205 struct kvm_ppc_smmu_info *info); 206 extern void kvmppc_core_flush_memslot(struct kvm *kvm, 207 struct kvm_memory_slot *memslot); 208 209 extern int kvmppc_bookehv_init(void); 210 extern void kvmppc_bookehv_exit(void); 211 212 extern int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu); 213 214 extern int kvm_vm_ioctl_get_htab_fd(struct kvm *kvm, struct kvm_get_htab_fd *); 215 extern long kvm_vm_ioctl_resize_hpt_prepare(struct kvm *kvm, 216 struct kvm_ppc_resize_hpt *rhpt); 217 extern long kvm_vm_ioctl_resize_hpt_commit(struct kvm *kvm, 218 struct kvm_ppc_resize_hpt *rhpt); 219 220 int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq); 221 222 extern int kvm_vm_ioctl_rtas_define_token(struct kvm *kvm, void __user *argp); 223 extern int kvmppc_rtas_hcall(struct kvm_vcpu *vcpu); 224 extern void kvmppc_rtas_tokens_free(struct kvm *kvm); 225 226 extern int kvmppc_xics_set_xive(struct kvm *kvm, u32 irq, u32 server, 227 u32 priority); 228 extern int kvmppc_xics_get_xive(struct kvm *kvm, u32 irq, u32 *server, 229 u32 *priority); 230 extern int kvmppc_xics_int_on(struct kvm *kvm, u32 irq); 231 extern int kvmppc_xics_int_off(struct kvm *kvm, u32 irq); 232 233 void kvmppc_core_dequeue_debug(struct kvm_vcpu *vcpu); 234 void kvmppc_core_queue_debug(struct kvm_vcpu *vcpu); 235 236 union kvmppc_one_reg { 237 u32 wval; 238 u64 dval; 239 vector128 vval; 240 u64 vsxval[2]; 241 u32 vsx32val[4]; 242 u16 vsx16val[8]; 243 u8 vsx8val[16]; 244 struct { 245 u64 addr; 246 u64 length; 247 } vpaval; 248 u64 xive_timaval[2]; 249 }; 250 251 struct kvmppc_ops { 252 struct module *owner; 253 int (*get_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 254 int (*set_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 255 int (*get_one_reg)(struct kvm_vcpu *vcpu, u64 id, 256 union kvmppc_one_reg *val); 257 int (*set_one_reg)(struct kvm_vcpu *vcpu, u64 id, 258 union kvmppc_one_reg *val); 259 void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu); 260 void (*vcpu_put)(struct kvm_vcpu *vcpu); 261 void (*inject_interrupt)(struct kvm_vcpu *vcpu, int vec, u64 srr1_flags); 262 void (*set_msr)(struct kvm_vcpu *vcpu, u64 msr); 263 int (*vcpu_run)(struct kvm_vcpu *vcpu); 264 int (*vcpu_create)(struct kvm_vcpu *vcpu); 265 void (*vcpu_free)(struct kvm_vcpu *vcpu); 266 int (*check_requests)(struct kvm_vcpu *vcpu); 267 int (*get_dirty_log)(struct kvm *kvm, struct kvm_dirty_log *log); 268 void (*flush_memslot)(struct kvm *kvm, struct kvm_memory_slot *memslot); 269 int (*prepare_memory_region)(struct kvm *kvm, 270 const struct kvm_memory_slot *old, 271 struct kvm_memory_slot *new, 272 enum kvm_mr_change change); 273 void (*commit_memory_region)(struct kvm *kvm, 274 struct kvm_memory_slot *old, 275 const struct kvm_memory_slot *new, 276 enum kvm_mr_change change); 277 bool (*unmap_gfn_range)(struct kvm *kvm, struct kvm_gfn_range *range); 278 bool (*age_gfn)(struct kvm *kvm, struct kvm_gfn_range *range); 279 bool (*test_age_gfn)(struct kvm *kvm, struct kvm_gfn_range *range); 280 bool (*set_spte_gfn)(struct kvm *kvm, struct kvm_gfn_range *range); 281 void (*free_memslot)(struct kvm_memory_slot *slot); 282 int (*init_vm)(struct kvm *kvm); 283 void (*destroy_vm)(struct kvm *kvm); 284 int (*get_smmu_info)(struct kvm *kvm, struct kvm_ppc_smmu_info *info); 285 int (*emulate_op)(struct kvm_vcpu *vcpu, 286 unsigned int inst, int *advance); 287 int (*emulate_mtspr)(struct kvm_vcpu *vcpu, int sprn, ulong spr_val); 288 int (*emulate_mfspr)(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val); 289 void (*fast_vcpu_kick)(struct kvm_vcpu *vcpu); 290 long (*arch_vm_ioctl)(struct file *filp, unsigned int ioctl, 291 unsigned long arg); 292 int (*hcall_implemented)(unsigned long hcall); 293 int (*irq_bypass_add_producer)(struct irq_bypass_consumer *, 294 struct irq_bypass_producer *); 295 void (*irq_bypass_del_producer)(struct irq_bypass_consumer *, 296 struct irq_bypass_producer *); 297 int (*configure_mmu)(struct kvm *kvm, struct kvm_ppc_mmuv3_cfg *cfg); 298 int (*get_rmmu_info)(struct kvm *kvm, struct kvm_ppc_rmmu_info *info); 299 int (*set_smt_mode)(struct kvm *kvm, unsigned long mode, 300 unsigned long flags); 301 void (*giveup_ext)(struct kvm_vcpu *vcpu, ulong msr); 302 int (*enable_nested)(struct kvm *kvm); 303 int (*load_from_eaddr)(struct kvm_vcpu *vcpu, ulong *eaddr, void *ptr, 304 int size); 305 int (*store_to_eaddr)(struct kvm_vcpu *vcpu, ulong *eaddr, void *ptr, 306 int size); 307 int (*enable_svm)(struct kvm *kvm); 308 int (*svm_off)(struct kvm *kvm); 309 int (*enable_dawr1)(struct kvm *kvm); 310 bool (*hash_v3_possible)(void); 311 int (*create_vm_debugfs)(struct kvm *kvm); 312 int (*create_vcpu_debugfs)(struct kvm_vcpu *vcpu, struct dentry *debugfs_dentry); 313 }; 314 315 extern struct kvmppc_ops *kvmppc_hv_ops; 316 extern struct kvmppc_ops *kvmppc_pr_ops; 317 318 static inline int kvmppc_get_last_inst(struct kvm_vcpu *vcpu, 319 enum instruction_fetch_type type, u32 *inst) 320 { 321 int ret = EMULATE_DONE; 322 u32 fetched_inst; 323 324 /* Load the instruction manually if it failed to do so in the 325 * exit path */ 326 if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED) 327 ret = kvmppc_load_last_inst(vcpu, type, &vcpu->arch.last_inst); 328 329 /* Write fetch_failed unswapped if the fetch failed */ 330 if (ret == EMULATE_DONE) 331 fetched_inst = kvmppc_need_byteswap(vcpu) ? 332 swab32(vcpu->arch.last_inst) : 333 vcpu->arch.last_inst; 334 else 335 fetched_inst = vcpu->arch.last_inst; 336 337 *inst = fetched_inst; 338 return ret; 339 } 340 341 static inline bool is_kvmppc_hv_enabled(struct kvm *kvm) 342 { 343 return kvm->arch.kvm_ops == kvmppc_hv_ops; 344 } 345 346 extern int kvmppc_hwrng_present(void); 347 348 /* 349 * Cuts out inst bits with ordering according to spec. 350 * That means the leftmost bit is zero. All given bits are included. 351 */ 352 static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb) 353 { 354 u32 r; 355 u32 mask; 356 357 BUG_ON(msb > lsb); 358 359 mask = (1 << (lsb - msb + 1)) - 1; 360 r = (inst >> (63 - lsb)) & mask; 361 362 return r; 363 } 364 365 /* 366 * Replaces inst bits with ordering according to spec. 367 */ 368 static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value) 369 { 370 u32 r; 371 u32 mask; 372 373 BUG_ON(msb > lsb); 374 375 mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb); 376 r = (inst & ~mask) | ((value << (63 - lsb)) & mask); 377 378 return r; 379 } 380 381 #define one_reg_size(id) \ 382 (1ul << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT)) 383 384 #define get_reg_val(id, reg) ({ \ 385 union kvmppc_one_reg __u; \ 386 switch (one_reg_size(id)) { \ 387 case 4: __u.wval = (reg); break; \ 388 case 8: __u.dval = (reg); break; \ 389 default: BUG(); \ 390 } \ 391 __u; \ 392 }) 393 394 395 #define set_reg_val(id, val) ({ \ 396 u64 __v; \ 397 switch (one_reg_size(id)) { \ 398 case 4: __v = (val).wval; break; \ 399 case 8: __v = (val).dval; break; \ 400 default: BUG(); \ 401 } \ 402 __v; \ 403 }) 404 405 int kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 406 int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 407 408 int kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 409 int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 410 411 int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg); 412 int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg); 413 int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *); 414 int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *); 415 416 void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid); 417 418 struct openpic; 419 420 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 421 extern void kvm_cma_reserve(void) __init; 422 static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr) 423 { 424 paca_ptrs[cpu]->kvm_hstate.xics_phys = (void __iomem *)addr; 425 } 426 427 static inline void kvmppc_set_xive_tima(int cpu, 428 unsigned long phys_addr, 429 void __iomem *virt_addr) 430 { 431 paca_ptrs[cpu]->kvm_hstate.xive_tima_phys = (void __iomem *)phys_addr; 432 paca_ptrs[cpu]->kvm_hstate.xive_tima_virt = virt_addr; 433 } 434 435 static inline u32 kvmppc_get_xics_latch(void) 436 { 437 u32 xirr; 438 439 xirr = get_paca()->kvm_hstate.saved_xirr; 440 get_paca()->kvm_hstate.saved_xirr = 0; 441 return xirr; 442 } 443 444 /* 445 * To avoid the need to unnecessarily exit fully to the host kernel, an IPI to 446 * a CPU thread that's running/napping inside of a guest is by default regarded 447 * as a request to wake the CPU (if needed) and continue execution within the 448 * guest, potentially to process new state like externally-generated 449 * interrupts or IPIs sent from within the guest itself (e.g. H_PROD/H_IPI). 450 * 451 * To force an exit to the host kernel, kvmppc_set_host_ipi() must be called 452 * prior to issuing the IPI to set the corresponding 'host_ipi' flag in the 453 * target CPU's PACA. To avoid unnecessary exits to the host, this flag should 454 * be immediately cleared via kvmppc_clear_host_ipi() by the IPI handler on 455 * the receiving side prior to processing the IPI work. 456 * 457 * NOTE: 458 * 459 * We currently issue an smp_mb() at the beginning of kvmppc_set_host_ipi(). 460 * This is to guard against sequences such as the following: 461 * 462 * CPU 463 * X: smp_muxed_ipi_set_message(): 464 * X: smp_mb() 465 * X: message[RESCHEDULE] = 1 466 * X: doorbell_global_ipi(42): 467 * X: kvmppc_set_host_ipi(42) 468 * X: ppc_msgsnd_sync()/smp_mb() 469 * X: ppc_msgsnd() -> 42 470 * 42: doorbell_exception(): // from CPU X 471 * 42: ppc_msgsync() 472 * 105: smp_muxed_ipi_set_message(): 473 * 105: smb_mb() 474 * // STORE DEFERRED DUE TO RE-ORDERING 475 * --105: message[CALL_FUNCTION] = 1 476 * | 105: doorbell_global_ipi(42): 477 * | 105: kvmppc_set_host_ipi(42) 478 * | 42: kvmppc_clear_host_ipi(42) 479 * | 42: smp_ipi_demux_relaxed() 480 * | 42: // returns to executing guest 481 * | // RE-ORDERED STORE COMPLETES 482 * ->105: message[CALL_FUNCTION] = 1 483 * 105: ppc_msgsnd_sync()/smp_mb() 484 * 105: ppc_msgsnd() -> 42 485 * 42: local_paca->kvm_hstate.host_ipi == 0 // IPI ignored 486 * 105: // hangs waiting on 42 to process messages/call_single_queue 487 * 488 * We also issue an smp_mb() at the end of kvmppc_clear_host_ipi(). This is 489 * to guard against sequences such as the following (as well as to create 490 * a read-side pairing with the barrier in kvmppc_set_host_ipi()): 491 * 492 * CPU 493 * X: smp_muxed_ipi_set_message(): 494 * X: smp_mb() 495 * X: message[RESCHEDULE] = 1 496 * X: doorbell_global_ipi(42): 497 * X: kvmppc_set_host_ipi(42) 498 * X: ppc_msgsnd_sync()/smp_mb() 499 * X: ppc_msgsnd() -> 42 500 * 42: doorbell_exception(): // from CPU X 501 * 42: ppc_msgsync() 502 * // STORE DEFERRED DUE TO RE-ORDERING 503 * -- 42: kvmppc_clear_host_ipi(42) 504 * | 42: smp_ipi_demux_relaxed() 505 * | 105: smp_muxed_ipi_set_message(): 506 * | 105: smb_mb() 507 * | 105: message[CALL_FUNCTION] = 1 508 * | 105: doorbell_global_ipi(42): 509 * | 105: kvmppc_set_host_ipi(42) 510 * | // RE-ORDERED STORE COMPLETES 511 * -> 42: kvmppc_clear_host_ipi(42) 512 * 42: // returns to executing guest 513 * 105: ppc_msgsnd_sync()/smp_mb() 514 * 105: ppc_msgsnd() -> 42 515 * 42: local_paca->kvm_hstate.host_ipi == 0 // IPI ignored 516 * 105: // hangs waiting on 42 to process messages/call_single_queue 517 */ 518 static inline void kvmppc_set_host_ipi(int cpu) 519 { 520 /* 521 * order stores of IPI messages vs. setting of host_ipi flag 522 * 523 * pairs with the barrier in kvmppc_clear_host_ipi() 524 */ 525 smp_mb(); 526 paca_ptrs[cpu]->kvm_hstate.host_ipi = 1; 527 } 528 529 static inline void kvmppc_clear_host_ipi(int cpu) 530 { 531 paca_ptrs[cpu]->kvm_hstate.host_ipi = 0; 532 /* 533 * order clearing of host_ipi flag vs. processing of IPI messages 534 * 535 * pairs with the barrier in kvmppc_set_host_ipi() 536 */ 537 smp_mb(); 538 } 539 540 static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu) 541 { 542 vcpu->kvm->arch.kvm_ops->fast_vcpu_kick(vcpu); 543 } 544 545 extern void kvm_hv_vm_activated(void); 546 extern void kvm_hv_vm_deactivated(void); 547 extern bool kvm_hv_mode_active(void); 548 549 extern void kvmppc_check_need_tlb_flush(struct kvm *kvm, int pcpu); 550 551 #else 552 static inline void __init kvm_cma_reserve(void) 553 {} 554 555 static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr) 556 {} 557 558 static inline void kvmppc_set_xive_tima(int cpu, 559 unsigned long phys_addr, 560 void __iomem *virt_addr) 561 {} 562 563 static inline u32 kvmppc_get_xics_latch(void) 564 { 565 return 0; 566 } 567 568 static inline void kvmppc_set_host_ipi(int cpu) 569 {} 570 571 static inline void kvmppc_clear_host_ipi(int cpu) 572 {} 573 574 static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu) 575 { 576 kvm_vcpu_kick(vcpu); 577 } 578 579 static inline bool kvm_hv_mode_active(void) { return false; } 580 581 #endif 582 583 #ifdef CONFIG_PPC_PSERIES 584 static inline bool kvmhv_on_pseries(void) 585 { 586 return !cpu_has_feature(CPU_FTR_HVMODE); 587 } 588 #else 589 static inline bool kvmhv_on_pseries(void) 590 { 591 return false; 592 } 593 #endif 594 595 #ifdef CONFIG_KVM_XICS 596 static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu) 597 { 598 return vcpu->arch.irq_type == KVMPPC_IRQ_XICS; 599 } 600 601 static inline struct kvmppc_passthru_irqmap *kvmppc_get_passthru_irqmap( 602 struct kvm *kvm) 603 { 604 if (kvm && kvm_irq_bypass) 605 return kvm->arch.pimap; 606 return NULL; 607 } 608 609 extern void kvmppc_alloc_host_rm_ops(void); 610 extern void kvmppc_free_host_rm_ops(void); 611 extern void kvmppc_free_pimap(struct kvm *kvm); 612 extern int kvmppc_xics_rm_complete(struct kvm_vcpu *vcpu, u32 hcall); 613 extern void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu); 614 extern int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd); 615 extern int kvmppc_xive_xics_hcall(struct kvm_vcpu *vcpu, u32 req); 616 extern u64 kvmppc_xics_get_icp(struct kvm_vcpu *vcpu); 617 extern int kvmppc_xics_set_icp(struct kvm_vcpu *vcpu, u64 icpval); 618 extern int kvmppc_xics_connect_vcpu(struct kvm_device *dev, 619 struct kvm_vcpu *vcpu, u32 cpu); 620 extern void kvmppc_xics_ipi_action(void); 621 extern void kvmppc_xics_set_mapped(struct kvm *kvm, unsigned long guest_irq, 622 unsigned long host_irq); 623 extern void kvmppc_xics_clr_mapped(struct kvm *kvm, unsigned long guest_irq, 624 unsigned long host_irq); 625 extern long kvmppc_deliver_irq_passthru(struct kvm_vcpu *vcpu, __be32 xirr, 626 struct kvmppc_irq_map *irq_map, 627 struct kvmppc_passthru_irqmap *pimap, 628 bool *again); 629 630 extern int kvmppc_xics_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, 631 int level, bool line_status); 632 633 extern int h_ipi_redirect; 634 #else 635 static inline struct kvmppc_passthru_irqmap *kvmppc_get_passthru_irqmap( 636 struct kvm *kvm) 637 { return NULL; } 638 static inline void kvmppc_alloc_host_rm_ops(void) {} 639 static inline void kvmppc_free_host_rm_ops(void) {} 640 static inline void kvmppc_free_pimap(struct kvm *kvm) {} 641 static inline int kvmppc_xics_rm_complete(struct kvm_vcpu *vcpu, u32 hcall) 642 { return 0; } 643 static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu) 644 { return 0; } 645 static inline void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu) { } 646 static inline int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd) 647 { return 0; } 648 static inline int kvmppc_xive_xics_hcall(struct kvm_vcpu *vcpu, u32 req) 649 { return 0; } 650 #endif 651 652 #ifdef CONFIG_KVM_XIVE 653 /* 654 * Below the first "xive" is the "eXternal Interrupt Virtualization Engine" 655 * ie. P9 new interrupt controller, while the second "xive" is the legacy 656 * "eXternal Interrupt Vector Entry" which is the configuration of an 657 * interrupt on the "xics" interrupt controller on P8 and earlier. Those 658 * two function consume or produce a legacy "XIVE" state from the 659 * new "XIVE" interrupt controller. 660 */ 661 extern int kvmppc_xive_set_xive(struct kvm *kvm, u32 irq, u32 server, 662 u32 priority); 663 extern int kvmppc_xive_get_xive(struct kvm *kvm, u32 irq, u32 *server, 664 u32 *priority); 665 extern int kvmppc_xive_int_on(struct kvm *kvm, u32 irq); 666 extern int kvmppc_xive_int_off(struct kvm *kvm, u32 irq); 667 668 extern int kvmppc_xive_connect_vcpu(struct kvm_device *dev, 669 struct kvm_vcpu *vcpu, u32 cpu); 670 extern void kvmppc_xive_cleanup_vcpu(struct kvm_vcpu *vcpu); 671 extern int kvmppc_xive_set_mapped(struct kvm *kvm, unsigned long guest_irq, 672 unsigned long host_irq); 673 extern int kvmppc_xive_clr_mapped(struct kvm *kvm, unsigned long guest_irq, 674 unsigned long host_irq); 675 extern u64 kvmppc_xive_get_icp(struct kvm_vcpu *vcpu); 676 extern int kvmppc_xive_set_icp(struct kvm_vcpu *vcpu, u64 icpval); 677 678 extern int kvmppc_xive_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, 679 int level, bool line_status); 680 extern void kvmppc_xive_push_vcpu(struct kvm_vcpu *vcpu); 681 extern void kvmppc_xive_pull_vcpu(struct kvm_vcpu *vcpu); 682 extern bool kvmppc_xive_rearm_escalation(struct kvm_vcpu *vcpu); 683 684 static inline int kvmppc_xive_enabled(struct kvm_vcpu *vcpu) 685 { 686 return vcpu->arch.irq_type == KVMPPC_IRQ_XIVE; 687 } 688 689 extern int kvmppc_xive_native_connect_vcpu(struct kvm_device *dev, 690 struct kvm_vcpu *vcpu, u32 cpu); 691 extern void kvmppc_xive_native_cleanup_vcpu(struct kvm_vcpu *vcpu); 692 extern int kvmppc_xive_native_get_vp(struct kvm_vcpu *vcpu, 693 union kvmppc_one_reg *val); 694 extern int kvmppc_xive_native_set_vp(struct kvm_vcpu *vcpu, 695 union kvmppc_one_reg *val); 696 extern bool kvmppc_xive_native_supported(void); 697 698 #else 699 static inline int kvmppc_xive_set_xive(struct kvm *kvm, u32 irq, u32 server, 700 u32 priority) { return -1; } 701 static inline int kvmppc_xive_get_xive(struct kvm *kvm, u32 irq, u32 *server, 702 u32 *priority) { return -1; } 703 static inline int kvmppc_xive_int_on(struct kvm *kvm, u32 irq) { return -1; } 704 static inline int kvmppc_xive_int_off(struct kvm *kvm, u32 irq) { return -1; } 705 706 static inline int kvmppc_xive_connect_vcpu(struct kvm_device *dev, 707 struct kvm_vcpu *vcpu, u32 cpu) { return -EBUSY; } 708 static inline void kvmppc_xive_cleanup_vcpu(struct kvm_vcpu *vcpu) { } 709 static inline int kvmppc_xive_set_mapped(struct kvm *kvm, unsigned long guest_irq, 710 struct irq_desc *host_desc) { return -ENODEV; } 711 static inline int kvmppc_xive_clr_mapped(struct kvm *kvm, unsigned long guest_irq, 712 struct irq_desc *host_desc) { return -ENODEV; } 713 static inline u64 kvmppc_xive_get_icp(struct kvm_vcpu *vcpu) { return 0; } 714 static inline int kvmppc_xive_set_icp(struct kvm_vcpu *vcpu, u64 icpval) { return -ENOENT; } 715 716 static inline int kvmppc_xive_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, 717 int level, bool line_status) { return -ENODEV; } 718 static inline void kvmppc_xive_push_vcpu(struct kvm_vcpu *vcpu) { } 719 static inline void kvmppc_xive_pull_vcpu(struct kvm_vcpu *vcpu) { } 720 static inline bool kvmppc_xive_rearm_escalation(struct kvm_vcpu *vcpu) { return true; } 721 722 static inline int kvmppc_xive_enabled(struct kvm_vcpu *vcpu) 723 { return 0; } 724 static inline int kvmppc_xive_native_connect_vcpu(struct kvm_device *dev, 725 struct kvm_vcpu *vcpu, u32 cpu) { return -EBUSY; } 726 static inline void kvmppc_xive_native_cleanup_vcpu(struct kvm_vcpu *vcpu) { } 727 static inline int kvmppc_xive_native_get_vp(struct kvm_vcpu *vcpu, 728 union kvmppc_one_reg *val) 729 { return 0; } 730 static inline int kvmppc_xive_native_set_vp(struct kvm_vcpu *vcpu, 731 union kvmppc_one_reg *val) 732 { return -ENOENT; } 733 734 #endif /* CONFIG_KVM_XIVE */ 735 736 #if defined(CONFIG_PPC_POWERNV) && defined(CONFIG_KVM_BOOK3S_64_HANDLER) 737 static inline bool xics_on_xive(void) 738 { 739 return xive_enabled() && cpu_has_feature(CPU_FTR_HVMODE); 740 } 741 #else 742 static inline bool xics_on_xive(void) 743 { 744 return false; 745 } 746 #endif 747 748 /* 749 * Prototypes for functions called only from assembler code. 750 * Having prototypes reduces sparse errors. 751 */ 752 long kvmppc_rm_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn, 753 unsigned long ioba, unsigned long tce); 754 long kvmppc_rm_h_put_tce_indirect(struct kvm_vcpu *vcpu, 755 unsigned long liobn, unsigned long ioba, 756 unsigned long tce_list, unsigned long npages); 757 long kvmppc_rm_h_stuff_tce(struct kvm_vcpu *vcpu, 758 unsigned long liobn, unsigned long ioba, 759 unsigned long tce_value, unsigned long npages); 760 long int kvmppc_rm_h_confer(struct kvm_vcpu *vcpu, int target, 761 unsigned int yield_count); 762 long kvmppc_rm_h_random(struct kvm_vcpu *vcpu); 763 void kvmhv_commence_exit(int trap); 764 void kvmppc_realmode_machine_check(struct kvm_vcpu *vcpu); 765 void kvmppc_subcore_enter_guest(void); 766 void kvmppc_subcore_exit_guest(void); 767 long kvmppc_realmode_hmi_handler(void); 768 long kvmppc_p9_realmode_hmi_handler(struct kvm_vcpu *vcpu); 769 long kvmppc_h_enter(struct kvm_vcpu *vcpu, unsigned long flags, 770 long pte_index, unsigned long pteh, unsigned long ptel); 771 long kvmppc_h_remove(struct kvm_vcpu *vcpu, unsigned long flags, 772 unsigned long pte_index, unsigned long avpn); 773 long kvmppc_h_bulk_remove(struct kvm_vcpu *vcpu); 774 long kvmppc_h_protect(struct kvm_vcpu *vcpu, unsigned long flags, 775 unsigned long pte_index, unsigned long avpn); 776 long kvmppc_h_read(struct kvm_vcpu *vcpu, unsigned long flags, 777 unsigned long pte_index); 778 long kvmppc_h_clear_ref(struct kvm_vcpu *vcpu, unsigned long flags, 779 unsigned long pte_index); 780 long kvmppc_h_clear_mod(struct kvm_vcpu *vcpu, unsigned long flags, 781 unsigned long pte_index); 782 long kvmppc_rm_h_page_init(struct kvm_vcpu *vcpu, unsigned long flags, 783 unsigned long dest, unsigned long src); 784 long kvmppc_hpte_hv_fault(struct kvm_vcpu *vcpu, unsigned long addr, 785 unsigned long slb_v, unsigned int status, bool data); 786 void kvmppc_guest_entry_inject_int(struct kvm_vcpu *vcpu); 787 788 /* 789 * Host-side operations we want to set up while running in real 790 * mode in the guest operating on the xics. 791 * Currently only VCPU wakeup is supported. 792 */ 793 794 union kvmppc_rm_state { 795 unsigned long raw; 796 struct { 797 u32 in_host; 798 u32 rm_action; 799 }; 800 }; 801 802 struct kvmppc_host_rm_core { 803 union kvmppc_rm_state rm_state; 804 void *rm_data; 805 char pad[112]; 806 }; 807 808 struct kvmppc_host_rm_ops { 809 struct kvmppc_host_rm_core *rm_core; 810 void (*vcpu_kick)(struct kvm_vcpu *vcpu); 811 }; 812 813 extern struct kvmppc_host_rm_ops *kvmppc_host_rm_ops_hv; 814 815 static inline unsigned long kvmppc_get_epr(struct kvm_vcpu *vcpu) 816 { 817 #ifdef CONFIG_KVM_BOOKE_HV 818 return mfspr(SPRN_GEPR); 819 #elif defined(CONFIG_BOOKE) 820 return vcpu->arch.epr; 821 #else 822 return 0; 823 #endif 824 } 825 826 static inline void kvmppc_set_epr(struct kvm_vcpu *vcpu, u32 epr) 827 { 828 #ifdef CONFIG_KVM_BOOKE_HV 829 mtspr(SPRN_GEPR, epr); 830 #elif defined(CONFIG_BOOKE) 831 vcpu->arch.epr = epr; 832 #endif 833 } 834 835 #ifdef CONFIG_KVM_MPIC 836 837 void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu); 838 int kvmppc_mpic_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu, 839 u32 cpu); 840 void kvmppc_mpic_disconnect_vcpu(struct openpic *opp, struct kvm_vcpu *vcpu); 841 842 #else 843 844 static inline void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu) 845 { 846 } 847 848 static inline int kvmppc_mpic_connect_vcpu(struct kvm_device *dev, 849 struct kvm_vcpu *vcpu, u32 cpu) 850 { 851 return -EINVAL; 852 } 853 854 static inline void kvmppc_mpic_disconnect_vcpu(struct openpic *opp, 855 struct kvm_vcpu *vcpu) 856 { 857 } 858 859 #endif /* CONFIG_KVM_MPIC */ 860 861 int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu, 862 struct kvm_config_tlb *cfg); 863 int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu *vcpu, 864 struct kvm_dirty_tlb *cfg); 865 866 long kvmppc_alloc_lpid(void); 867 void kvmppc_free_lpid(long lpid); 868 void kvmppc_init_lpid(unsigned long nr_lpids); 869 870 static inline void kvmppc_mmu_flush_icache(kvm_pfn_t pfn) 871 { 872 struct page *page; 873 /* 874 * We can only access pages that the kernel maps 875 * as memory. Bail out for unmapped ones. 876 */ 877 if (!pfn_valid(pfn)) 878 return; 879 880 /* Clear i-cache for new pages */ 881 page = pfn_to_page(pfn); 882 if (!test_bit(PG_dcache_clean, &page->flags)) { 883 flush_dcache_icache_page(page); 884 set_bit(PG_dcache_clean, &page->flags); 885 } 886 } 887 888 /* 889 * Shared struct helpers. The shared struct can be little or big endian, 890 * depending on the guest endianness. So expose helpers to all of them. 891 */ 892 static inline bool kvmppc_shared_big_endian(struct kvm_vcpu *vcpu) 893 { 894 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE) 895 /* Only Book3S_64 PR supports bi-endian for now */ 896 return vcpu->arch.shared_big_endian; 897 #elif defined(CONFIG_PPC_BOOK3S_64) && defined(__LITTLE_ENDIAN__) 898 /* Book3s_64 HV on little endian is always little endian */ 899 return false; 900 #else 901 return true; 902 #endif 903 } 904 905 #define SPRNG_WRAPPER_GET(reg, bookehv_spr) \ 906 static inline ulong kvmppc_get_##reg(struct kvm_vcpu *vcpu) \ 907 { \ 908 return mfspr(bookehv_spr); \ 909 } \ 910 911 #define SPRNG_WRAPPER_SET(reg, bookehv_spr) \ 912 static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, ulong val) \ 913 { \ 914 mtspr(bookehv_spr, val); \ 915 } \ 916 917 #define SHARED_WRAPPER_GET(reg, size) \ 918 static inline u##size kvmppc_get_##reg(struct kvm_vcpu *vcpu) \ 919 { \ 920 if (kvmppc_shared_big_endian(vcpu)) \ 921 return be##size##_to_cpu(vcpu->arch.shared->reg); \ 922 else \ 923 return le##size##_to_cpu(vcpu->arch.shared->reg); \ 924 } \ 925 926 #define SHARED_WRAPPER_SET(reg, size) \ 927 static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, u##size val) \ 928 { \ 929 if (kvmppc_shared_big_endian(vcpu)) \ 930 vcpu->arch.shared->reg = cpu_to_be##size(val); \ 931 else \ 932 vcpu->arch.shared->reg = cpu_to_le##size(val); \ 933 } \ 934 935 #define SHARED_WRAPPER(reg, size) \ 936 SHARED_WRAPPER_GET(reg, size) \ 937 SHARED_WRAPPER_SET(reg, size) \ 938 939 #define SPRNG_WRAPPER(reg, bookehv_spr) \ 940 SPRNG_WRAPPER_GET(reg, bookehv_spr) \ 941 SPRNG_WRAPPER_SET(reg, bookehv_spr) \ 942 943 #ifdef CONFIG_KVM_BOOKE_HV 944 945 #define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \ 946 SPRNG_WRAPPER(reg, bookehv_spr) \ 947 948 #else 949 950 #define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \ 951 SHARED_WRAPPER(reg, size) \ 952 953 #endif 954 955 SHARED_WRAPPER(critical, 64) 956 SHARED_SPRNG_WRAPPER(sprg0, 64, SPRN_GSPRG0) 957 SHARED_SPRNG_WRAPPER(sprg1, 64, SPRN_GSPRG1) 958 SHARED_SPRNG_WRAPPER(sprg2, 64, SPRN_GSPRG2) 959 SHARED_SPRNG_WRAPPER(sprg3, 64, SPRN_GSPRG3) 960 SHARED_SPRNG_WRAPPER(srr0, 64, SPRN_GSRR0) 961 SHARED_SPRNG_WRAPPER(srr1, 64, SPRN_GSRR1) 962 SHARED_SPRNG_WRAPPER(dar, 64, SPRN_GDEAR) 963 SHARED_SPRNG_WRAPPER(esr, 64, SPRN_GESR) 964 SHARED_WRAPPER_GET(msr, 64) 965 static inline void kvmppc_set_msr_fast(struct kvm_vcpu *vcpu, u64 val) 966 { 967 if (kvmppc_shared_big_endian(vcpu)) 968 vcpu->arch.shared->msr = cpu_to_be64(val); 969 else 970 vcpu->arch.shared->msr = cpu_to_le64(val); 971 } 972 SHARED_WRAPPER(dsisr, 32) 973 SHARED_WRAPPER(int_pending, 32) 974 SHARED_WRAPPER(sprg4, 64) 975 SHARED_WRAPPER(sprg5, 64) 976 SHARED_WRAPPER(sprg6, 64) 977 SHARED_WRAPPER(sprg7, 64) 978 979 static inline u32 kvmppc_get_sr(struct kvm_vcpu *vcpu, int nr) 980 { 981 if (kvmppc_shared_big_endian(vcpu)) 982 return be32_to_cpu(vcpu->arch.shared->sr[nr]); 983 else 984 return le32_to_cpu(vcpu->arch.shared->sr[nr]); 985 } 986 987 static inline void kvmppc_set_sr(struct kvm_vcpu *vcpu, int nr, u32 val) 988 { 989 if (kvmppc_shared_big_endian(vcpu)) 990 vcpu->arch.shared->sr[nr] = cpu_to_be32(val); 991 else 992 vcpu->arch.shared->sr[nr] = cpu_to_le32(val); 993 } 994 995 /* 996 * Please call after prepare_to_enter. This function puts the lazy ee and irq 997 * disabled tracking state back to normal mode, without actually enabling 998 * interrupts. 999 */ 1000 static inline void kvmppc_fix_ee_before_entry(void) 1001 { 1002 trace_hardirqs_on(); 1003 1004 #ifdef CONFIG_PPC64 1005 /* 1006 * To avoid races, the caller must have gone directly from having 1007 * interrupts fully-enabled to hard-disabled. 1008 */ 1009 WARN_ON(local_paca->irq_happened != PACA_IRQ_HARD_DIS); 1010 1011 /* Only need to enable IRQs by hard enabling them after this */ 1012 local_paca->irq_happened = 0; 1013 irq_soft_mask_set(IRQS_ENABLED); 1014 #endif 1015 } 1016 1017 static inline ulong kvmppc_get_ea_indexed(struct kvm_vcpu *vcpu, int ra, int rb) 1018 { 1019 ulong ea; 1020 ulong msr_64bit = 0; 1021 1022 ea = kvmppc_get_gpr(vcpu, rb); 1023 if (ra) 1024 ea += kvmppc_get_gpr(vcpu, ra); 1025 1026 #if defined(CONFIG_PPC_BOOK3E_64) 1027 msr_64bit = MSR_CM; 1028 #elif defined(CONFIG_PPC_BOOK3S_64) 1029 msr_64bit = MSR_SF; 1030 #endif 1031 1032 if (!(kvmppc_get_msr(vcpu) & msr_64bit)) 1033 ea = (uint32_t)ea; 1034 1035 return ea; 1036 } 1037 1038 extern void xics_wake_cpu(int cpu); 1039 1040 #endif /* __POWERPC_KVM_PPC_H__ */ 1041