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