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#include <asm/inst.h> 32 33/* 34 * KVMPPC_INST_SW_BREAKPOINT is debug Instruction 35 * for supporting software breakpoint. 36 */ 37#define KVMPPC_INST_SW_BREAKPOINT 0x00dddd00 38 39enum emulation_result { 40 EMULATE_DONE, /* no further processing */ 41 EMULATE_DO_MMIO, /* kvm_run filled with MMIO request */ 42 EMULATE_FAIL, /* can't emulate this instruction */ 43 EMULATE_AGAIN, /* something went wrong. go again */ 44 EMULATE_EXIT_USER, /* emulation requires exit to user-space */ 45}; 46 47enum instruction_fetch_type { 48 INST_GENERIC, 49 INST_SC, /* system call */ 50}; 51 52enum xlate_instdata { 53 XLATE_INST, /* translate instruction address */ 54 XLATE_DATA /* translate data address */ 55}; 56 57enum xlate_readwrite { 58 XLATE_READ, /* check for read permissions */ 59 XLATE_WRITE /* check for write permissions */ 60}; 61 62extern int kvmppc_vcpu_run(struct kvm_vcpu *vcpu); 63extern int __kvmppc_vcpu_run(struct kvm_vcpu *vcpu); 64extern void kvmppc_handler_highmem(void); 65 66extern void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu); 67extern int kvmppc_handle_load(struct kvm_vcpu *vcpu, 68 unsigned int rt, unsigned int bytes, 69 int is_default_endian); 70extern int kvmppc_handle_loads(struct kvm_vcpu *vcpu, 71 unsigned int rt, unsigned int bytes, 72 int is_default_endian); 73extern int kvmppc_handle_vsx_load(struct kvm_vcpu *vcpu, 74 unsigned int rt, unsigned int bytes, 75 int is_default_endian, int mmio_sign_extend); 76extern int kvmppc_handle_vmx_load(struct kvm_vcpu *vcpu, 77 unsigned int rt, unsigned int bytes, int is_default_endian); 78extern int kvmppc_handle_vmx_store(struct kvm_vcpu *vcpu, 79 unsigned int rs, unsigned int bytes, int is_default_endian); 80extern int kvmppc_handle_store(struct kvm_vcpu *vcpu, 81 u64 val, unsigned int bytes, 82 int is_default_endian); 83extern int kvmppc_handle_vsx_store(struct kvm_vcpu *vcpu, 84 int rs, unsigned int bytes, 85 int is_default_endian); 86 87extern int kvmppc_load_last_inst(struct kvm_vcpu *vcpu, 88 enum instruction_fetch_type type, 89 unsigned long *inst); 90 91extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, 92 bool data); 93extern int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, 94 bool data); 95extern int kvmppc_emulate_instruction(struct kvm_vcpu *vcpu); 96extern int kvmppc_emulate_loadstore(struct kvm_vcpu *vcpu); 97extern int kvmppc_emulate_mmio(struct kvm_vcpu *vcpu); 98extern void kvmppc_emulate_dec(struct kvm_vcpu *vcpu); 99extern u32 kvmppc_get_dec(struct kvm_vcpu *vcpu, u64 tb); 100extern void kvmppc_decrementer_func(struct kvm_vcpu *vcpu); 101extern int kvmppc_sanity_check(struct kvm_vcpu *vcpu); 102extern int kvmppc_subarch_vcpu_init(struct kvm_vcpu *vcpu); 103extern void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu *vcpu); 104 105/* Core-specific hooks */ 106 107extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr, 108 unsigned int gtlb_idx); 109extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid); 110extern int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr); 111extern int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr); 112extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index, 113 gva_t eaddr); 114extern void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu); 115extern void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu); 116extern int kvmppc_xlate(struct kvm_vcpu *vcpu, ulong eaddr, 117 enum xlate_instdata xlid, enum xlate_readwrite xlrw, 118 struct kvmppc_pte *pte); 119 120extern int kvmppc_core_vcpu_create(struct kvm_vcpu *vcpu); 121extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu); 122extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu); 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); 131 132extern void kvmppc_core_queue_machine_check(struct kvm_vcpu *vcpu, 133 ulong srr1_flags); 134extern void kvmppc_core_queue_syscall(struct kvm_vcpu *vcpu); 135extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, 136 ulong srr1_flags); 137extern void kvmppc_core_queue_fpunavail(struct kvm_vcpu *vcpu, 138 ulong srr1_flags); 139extern void kvmppc_core_queue_vec_unavail(struct kvm_vcpu *vcpu, 140 ulong srr1_flags); 141extern void kvmppc_core_queue_vsx_unavail(struct kvm_vcpu *vcpu, 142 ulong srr1_flags); 143extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu); 144extern void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu); 145extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu, 146 struct kvm_interrupt *irq); 147extern void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu); 148extern void kvmppc_core_queue_dtlb_miss(struct kvm_vcpu *vcpu, 149 ulong dear_flags, 150 ulong esr_flags); 151extern void kvmppc_core_queue_data_storage(struct kvm_vcpu *vcpu, 152 ulong srr1_flags, 153 ulong dar, 154 ulong dsisr); 155extern void kvmppc_core_queue_itlb_miss(struct kvm_vcpu *vcpu); 156extern void kvmppc_core_queue_inst_storage(struct kvm_vcpu *vcpu, 157 ulong srr1_flags); 158 159extern void kvmppc_core_flush_tlb(struct kvm_vcpu *vcpu); 160extern int kvmppc_core_check_requests(struct kvm_vcpu *vcpu); 161 162extern int kvmppc_booke_init(void); 163extern void kvmppc_booke_exit(void); 164 165extern int kvmppc_kvm_pv(struct kvm_vcpu *vcpu); 166extern void kvmppc_map_magic(struct kvm_vcpu *vcpu); 167 168extern int kvmppc_allocate_hpt(struct kvm_hpt_info *info, u32 order); 169extern void kvmppc_set_hpt(struct kvm *kvm, struct kvm_hpt_info *info); 170extern int kvmppc_alloc_reset_hpt(struct kvm *kvm, int order); 171extern void kvmppc_free_hpt(struct kvm_hpt_info *info); 172extern void kvmppc_rmap_reset(struct kvm *kvm); 173extern void kvmppc_map_vrma(struct kvm_vcpu *vcpu, 174 struct kvm_memory_slot *memslot, unsigned long porder); 175extern int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu); 176extern long kvm_spapr_tce_attach_iommu_group(struct kvm *kvm, int tablefd, 177 struct iommu_group *grp); 178extern void kvm_spapr_tce_release_iommu_group(struct kvm *kvm, 179 struct iommu_group *grp); 180extern int kvmppc_switch_mmu_to_hpt(struct kvm *kvm); 181extern int kvmppc_switch_mmu_to_radix(struct kvm *kvm); 182extern void kvmppc_setup_partition_table(struct kvm *kvm); 183 184extern int kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm, 185 struct kvm_create_spapr_tce_64 *args); 186#define kvmppc_ioba_validate(stt, ioba, npages) \ 187 (iommu_tce_check_ioba((stt)->page_shift, (stt)->offset, \ 188 (stt)->size, (ioba), (npages)) ? \ 189 H_PARAMETER : H_SUCCESS) 190extern long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn, 191 unsigned long ioba, unsigned long tce); 192extern long kvmppc_h_put_tce_indirect(struct kvm_vcpu *vcpu, 193 unsigned long liobn, unsigned long ioba, 194 unsigned long tce_list, unsigned long npages); 195extern long kvmppc_h_stuff_tce(struct kvm_vcpu *vcpu, 196 unsigned long liobn, unsigned long ioba, 197 unsigned long tce_value, unsigned long npages); 198extern long kvmppc_h_get_tce(struct kvm_vcpu *vcpu, unsigned long liobn, 199 unsigned long ioba); 200extern struct page *kvm_alloc_hpt_cma(unsigned long nr_pages); 201extern void kvm_free_hpt_cma(struct page *page, unsigned long nr_pages); 202extern int kvmppc_core_init_vm(struct kvm *kvm); 203extern void kvmppc_core_destroy_vm(struct kvm *kvm); 204extern void kvmppc_core_free_memslot(struct kvm *kvm, 205 struct kvm_memory_slot *slot); 206extern int kvmppc_core_prepare_memory_region(struct kvm *kvm, 207 const struct kvm_memory_slot *old, 208 struct kvm_memory_slot *new, 209 enum kvm_mr_change change); 210extern void kvmppc_core_commit_memory_region(struct kvm *kvm, 211 struct kvm_memory_slot *old, 212 const struct kvm_memory_slot *new, 213 enum kvm_mr_change change); 214extern int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm, 215 struct kvm_ppc_smmu_info *info); 216extern void kvmppc_core_flush_memslot(struct kvm *kvm, 217 struct kvm_memory_slot *memslot); 218 219extern int kvmppc_bookehv_init(void); 220extern void kvmppc_bookehv_exit(void); 221 222extern int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu); 223 224extern int kvm_vm_ioctl_get_htab_fd(struct kvm *kvm, struct kvm_get_htab_fd *); 225extern int kvm_vm_ioctl_resize_hpt_prepare(struct kvm *kvm, 226 struct kvm_ppc_resize_hpt *rhpt); 227extern int kvm_vm_ioctl_resize_hpt_commit(struct kvm *kvm, 228 struct kvm_ppc_resize_hpt *rhpt); 229 230int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq); 231 232extern int kvm_vm_ioctl_rtas_define_token(struct kvm *kvm, void __user *argp); 233extern int kvmppc_rtas_hcall(struct kvm_vcpu *vcpu); 234extern void kvmppc_rtas_tokens_free(struct kvm *kvm); 235 236extern int kvmppc_xics_set_xive(struct kvm *kvm, u32 irq, u32 server, 237 u32 priority); 238extern int kvmppc_xics_get_xive(struct kvm *kvm, u32 irq, u32 *server, 239 u32 *priority); 240extern int kvmppc_xics_int_on(struct kvm *kvm, u32 irq); 241extern int kvmppc_xics_int_off(struct kvm *kvm, u32 irq); 242 243void kvmppc_core_dequeue_debug(struct kvm_vcpu *vcpu); 244void kvmppc_core_queue_debug(struct kvm_vcpu *vcpu); 245 246union kvmppc_one_reg { 247 u32 wval; 248 u64 dval; 249 vector128 vval; 250 u64 vsxval[2]; 251 u32 vsx32val[4]; 252 u16 vsx16val[8]; 253 u8 vsx8val[16]; 254 struct { 255 u64 addr; 256 u64 length; 257 } vpaval; 258 u64 xive_timaval[2]; 259}; 260 261struct kvmppc_ops { 262 struct module *owner; 263 int (*get_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 264 int (*set_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 265 int (*get_one_reg)(struct kvm_vcpu *vcpu, u64 id, 266 union kvmppc_one_reg *val); 267 int (*set_one_reg)(struct kvm_vcpu *vcpu, u64 id, 268 union kvmppc_one_reg *val); 269 void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu); 270 void (*vcpu_put)(struct kvm_vcpu *vcpu); 271 void (*inject_interrupt)(struct kvm_vcpu *vcpu, int vec, u64 srr1_flags); 272 void (*set_msr)(struct kvm_vcpu *vcpu, u64 msr); 273 int (*vcpu_run)(struct kvm_vcpu *vcpu); 274 int (*vcpu_create)(struct kvm_vcpu *vcpu); 275 void (*vcpu_free)(struct kvm_vcpu *vcpu); 276 int (*check_requests)(struct kvm_vcpu *vcpu); 277 int (*get_dirty_log)(struct kvm *kvm, struct kvm_dirty_log *log); 278 void (*flush_memslot)(struct kvm *kvm, struct kvm_memory_slot *memslot); 279 int (*prepare_memory_region)(struct kvm *kvm, 280 const struct kvm_memory_slot *old, 281 struct kvm_memory_slot *new, 282 enum kvm_mr_change change); 283 void (*commit_memory_region)(struct kvm *kvm, 284 struct kvm_memory_slot *old, 285 const struct kvm_memory_slot *new, 286 enum kvm_mr_change change); 287 bool (*unmap_gfn_range)(struct kvm *kvm, struct kvm_gfn_range *range); 288 bool (*age_gfn)(struct kvm *kvm, struct kvm_gfn_range *range); 289 bool (*test_age_gfn)(struct kvm *kvm, struct kvm_gfn_range *range); 290 bool (*set_spte_gfn)(struct kvm *kvm, struct kvm_gfn_range *range); 291 void (*free_memslot)(struct kvm_memory_slot *slot); 292 int (*init_vm)(struct kvm *kvm); 293 void (*destroy_vm)(struct kvm *kvm); 294 int (*get_smmu_info)(struct kvm *kvm, struct kvm_ppc_smmu_info *info); 295 int (*emulate_op)(struct kvm_vcpu *vcpu, 296 unsigned int inst, int *advance); 297 int (*emulate_mtspr)(struct kvm_vcpu *vcpu, int sprn, ulong spr_val); 298 int (*emulate_mfspr)(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val); 299 void (*fast_vcpu_kick)(struct kvm_vcpu *vcpu); 300 int (*arch_vm_ioctl)(struct file *filp, unsigned int ioctl, 301 unsigned long arg); 302 int (*hcall_implemented)(unsigned long hcall); 303 int (*irq_bypass_add_producer)(struct irq_bypass_consumer *, 304 struct irq_bypass_producer *); 305 void (*irq_bypass_del_producer)(struct irq_bypass_consumer *, 306 struct irq_bypass_producer *); 307 int (*configure_mmu)(struct kvm *kvm, struct kvm_ppc_mmuv3_cfg *cfg); 308 int (*get_rmmu_info)(struct kvm *kvm, struct kvm_ppc_rmmu_info *info); 309 int (*set_smt_mode)(struct kvm *kvm, unsigned long mode, 310 unsigned long flags); 311 void (*giveup_ext)(struct kvm_vcpu *vcpu, ulong msr); 312 int (*enable_nested)(struct kvm *kvm); 313 int (*load_from_eaddr)(struct kvm_vcpu *vcpu, ulong *eaddr, void *ptr, 314 int size); 315 int (*store_to_eaddr)(struct kvm_vcpu *vcpu, ulong *eaddr, void *ptr, 316 int size); 317 int (*enable_svm)(struct kvm *kvm); 318 int (*svm_off)(struct kvm *kvm); 319 int (*enable_dawr1)(struct kvm *kvm); 320 bool (*hash_v3_possible)(void); 321 int (*create_vm_debugfs)(struct kvm *kvm); 322 int (*create_vcpu_debugfs)(struct kvm_vcpu *vcpu, struct dentry *debugfs_dentry); 323}; 324 325extern struct kvmppc_ops *kvmppc_hv_ops; 326extern struct kvmppc_ops *kvmppc_pr_ops; 327 328static inline int kvmppc_get_last_inst(struct kvm_vcpu *vcpu, 329 enum instruction_fetch_type type, ppc_inst_t *inst) 330{ 331 int ret = EMULATE_DONE; 332 u32 fetched_inst; 333 334 /* Load the instruction manually if it failed to do so in the 335 * exit path */ 336 if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED) 337 ret = kvmppc_load_last_inst(vcpu, type, &vcpu->arch.last_inst); 338 339 /* Write fetch_failed unswapped if the fetch failed */ 340 if (ret != EMULATE_DONE) { 341 *inst = ppc_inst(KVM_INST_FETCH_FAILED); 342 return ret; 343 } 344 345#ifdef CONFIG_PPC64 346 /* Is this a prefixed instruction? */ 347 if ((vcpu->arch.last_inst >> 32) != 0) { 348 u32 prefix = vcpu->arch.last_inst >> 32; 349 u32 suffix = vcpu->arch.last_inst; 350 if (kvmppc_need_byteswap(vcpu)) { 351 prefix = swab32(prefix); 352 suffix = swab32(suffix); 353 } 354 *inst = ppc_inst_prefix(prefix, suffix); 355 return EMULATE_DONE; 356 } 357#endif 358 359 fetched_inst = kvmppc_need_byteswap(vcpu) ? 360 swab32(vcpu->arch.last_inst) : 361 vcpu->arch.last_inst; 362 *inst = ppc_inst(fetched_inst); 363 return EMULATE_DONE; 364} 365 366static inline bool is_kvmppc_hv_enabled(struct kvm *kvm) 367{ 368 return kvm->arch.kvm_ops == kvmppc_hv_ops; 369} 370 371extern int kvmppc_hwrng_present(void); 372 373/* 374 * Cuts out inst bits with ordering according to spec. 375 * That means the leftmost bit is zero. All given bits are included. 376 */ 377static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb) 378{ 379 u32 r; 380 u32 mask; 381 382 BUG_ON(msb > lsb); 383 384 mask = (1 << (lsb - msb + 1)) - 1; 385 r = (inst >> (63 - lsb)) & mask; 386 387 return r; 388} 389 390/* 391 * Replaces inst bits with ordering according to spec. 392 */ 393static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value) 394{ 395 u32 r; 396 u32 mask; 397 398 BUG_ON(msb > lsb); 399 400 mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb); 401 r = (inst & ~mask) | ((value << (63 - lsb)) & mask); 402 403 return r; 404} 405 406#define one_reg_size(id) \ 407 (1ul << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT)) 408 409#define get_reg_val(id, reg) ({ \ 410 union kvmppc_one_reg __u; \ 411 switch (one_reg_size(id)) { \ 412 case 4: __u.wval = (reg); break; \ 413 case 8: __u.dval = (reg); break; \ 414 default: BUG(); \ 415 } \ 416 __u; \ 417}) 418 419 420#define set_reg_val(id, val) ({ \ 421 u64 __v; \ 422 switch (one_reg_size(id)) { \ 423 case 4: __v = (val).wval; break; \ 424 case 8: __v = (val).dval; break; \ 425 default: BUG(); \ 426 } \ 427 __v; \ 428}) 429 430int kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 431int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 432 433int kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 434int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); 435 436int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg); 437int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg); 438int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *); 439int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *); 440 441void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid); 442 443struct openpic; 444 445#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 446extern void kvm_cma_reserve(void) __init; 447static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr) 448{ 449 paca_ptrs[cpu]->kvm_hstate.xics_phys = (void __iomem *)addr; 450} 451 452static inline void kvmppc_set_xive_tima(int cpu, 453 unsigned long phys_addr, 454 void __iomem *virt_addr) 455{ 456 paca_ptrs[cpu]->kvm_hstate.xive_tima_phys = (void __iomem *)phys_addr; 457 paca_ptrs[cpu]->kvm_hstate.xive_tima_virt = virt_addr; 458} 459 460static inline u32 kvmppc_get_xics_latch(void) 461{ 462 u32 xirr; 463 464 xirr = get_paca()->kvm_hstate.saved_xirr; 465 get_paca()->kvm_hstate.saved_xirr = 0; 466 return xirr; 467} 468 469/* 470 * To avoid the need to unnecessarily exit fully to the host kernel, an IPI to 471 * a CPU thread that's running/napping inside of a guest is by default regarded 472 * as a request to wake the CPU (if needed) and continue execution within the 473 * guest, potentially to process new state like externally-generated 474 * interrupts or IPIs sent from within the guest itself (e.g. H_PROD/H_IPI). 475 * 476 * To force an exit to the host kernel, kvmppc_set_host_ipi() must be called 477 * prior to issuing the IPI to set the corresponding 'host_ipi' flag in the 478 * target CPU's PACA. To avoid unnecessary exits to the host, this flag should 479 * be immediately cleared via kvmppc_clear_host_ipi() by the IPI handler on 480 * the receiving side prior to processing the IPI work. 481 * 482 * NOTE: 483 * 484 * We currently issue an smp_mb() at the beginning of kvmppc_set_host_ipi(). 485 * This is to guard against sequences such as the following: 486 * 487 * CPU 488 * X: smp_muxed_ipi_set_message(): 489 * X: smp_mb() 490 * X: message[RESCHEDULE] = 1 491 * X: doorbell_global_ipi(42): 492 * X: kvmppc_set_host_ipi(42) 493 * X: ppc_msgsnd_sync()/smp_mb() 494 * X: ppc_msgsnd() -> 42 495 * 42: doorbell_exception(): // from CPU X 496 * 42: ppc_msgsync() 497 * 105: smp_muxed_ipi_set_message(): 498 * 105: smb_mb() 499 * // STORE DEFERRED DUE TO RE-ORDERING 500 * --105: message[CALL_FUNCTION] = 1 501 * | 105: doorbell_global_ipi(42): 502 * | 105: kvmppc_set_host_ipi(42) 503 * | 42: kvmppc_clear_host_ipi(42) 504 * | 42: smp_ipi_demux_relaxed() 505 * | 42: // returns to executing guest 506 * | // RE-ORDERED STORE COMPLETES 507 * ->105: message[CALL_FUNCTION] = 1 508 * 105: ppc_msgsnd_sync()/smp_mb() 509 * 105: ppc_msgsnd() -> 42 510 * 42: local_paca->kvm_hstate.host_ipi == 0 // IPI ignored 511 * 105: // hangs waiting on 42 to process messages/call_single_queue 512 * 513 * We also issue an smp_mb() at the end of kvmppc_clear_host_ipi(). This is 514 * to guard against sequences such as the following (as well as to create 515 * a read-side pairing with the barrier in kvmppc_set_host_ipi()): 516 * 517 * CPU 518 * X: smp_muxed_ipi_set_message(): 519 * X: smp_mb() 520 * X: message[RESCHEDULE] = 1 521 * X: doorbell_global_ipi(42): 522 * X: kvmppc_set_host_ipi(42) 523 * X: ppc_msgsnd_sync()/smp_mb() 524 * X: ppc_msgsnd() -> 42 525 * 42: doorbell_exception(): // from CPU X 526 * 42: ppc_msgsync() 527 * // STORE DEFERRED DUE TO RE-ORDERING 528 * -- 42: kvmppc_clear_host_ipi(42) 529 * | 42: smp_ipi_demux_relaxed() 530 * | 105: smp_muxed_ipi_set_message(): 531 * | 105: smb_mb() 532 * | 105: message[CALL_FUNCTION] = 1 533 * | 105: doorbell_global_ipi(42): 534 * | 105: kvmppc_set_host_ipi(42) 535 * | // RE-ORDERED STORE COMPLETES 536 * -> 42: kvmppc_clear_host_ipi(42) 537 * 42: // returns to executing guest 538 * 105: ppc_msgsnd_sync()/smp_mb() 539 * 105: ppc_msgsnd() -> 42 540 * 42: local_paca->kvm_hstate.host_ipi == 0 // IPI ignored 541 * 105: // hangs waiting on 42 to process messages/call_single_queue 542 */ 543static inline void kvmppc_set_host_ipi(int cpu) 544{ 545 /* 546 * order stores of IPI messages vs. setting of host_ipi flag 547 * 548 * pairs with the barrier in kvmppc_clear_host_ipi() 549 */ 550 smp_mb(); 551 WRITE_ONCE(paca_ptrs[cpu]->kvm_hstate.host_ipi, 1); 552} 553 554static inline void kvmppc_clear_host_ipi(int cpu) 555{ 556 WRITE_ONCE(paca_ptrs[cpu]->kvm_hstate.host_ipi, 0); 557 /* 558 * order clearing of host_ipi flag vs. processing of IPI messages 559 * 560 * pairs with the barrier in kvmppc_set_host_ipi() 561 */ 562 smp_mb(); 563} 564 565static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu) 566{ 567 vcpu->kvm->arch.kvm_ops->fast_vcpu_kick(vcpu); 568} 569 570extern void kvm_hv_vm_activated(void); 571extern void kvm_hv_vm_deactivated(void); 572extern bool kvm_hv_mode_active(void); 573 574extern void kvmppc_check_need_tlb_flush(struct kvm *kvm, int pcpu); 575 576#else 577static inline void __init kvm_cma_reserve(void) 578{} 579 580static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr) 581{} 582 583static inline void kvmppc_set_xive_tima(int cpu, 584 unsigned long phys_addr, 585 void __iomem *virt_addr) 586{} 587 588static inline u32 kvmppc_get_xics_latch(void) 589{ 590 return 0; 591} 592 593static inline void kvmppc_set_host_ipi(int cpu) 594{} 595 596static inline void kvmppc_clear_host_ipi(int cpu) 597{} 598 599static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu) 600{ 601 kvm_vcpu_kick(vcpu); 602} 603 604static inline bool kvm_hv_mode_active(void) { return false; } 605 606#endif 607 608#ifdef CONFIG_PPC_PSERIES 609static inline bool kvmhv_on_pseries(void) 610{ 611 return !cpu_has_feature(CPU_FTR_HVMODE); 612} 613#else 614static inline bool kvmhv_on_pseries(void) 615{ 616 return false; 617} 618 619#endif 620 621#ifndef CONFIG_PPC_BOOK3S 622 623static inline bool kvmhv_is_nestedv2(void) 624{ 625 return false; 626} 627 628static inline bool kvmhv_is_nestedv1(void) 629{ 630 return false; 631} 632 633static inline int kvmhv_nestedv2_reload_ptregs(struct kvm_vcpu *vcpu, 634 struct pt_regs *regs) 635{ 636 return 0; 637} 638static inline int kvmhv_nestedv2_mark_dirty_ptregs(struct kvm_vcpu *vcpu, 639 struct pt_regs *regs) 640{ 641 return 0; 642} 643 644static inline int kvmhv_nestedv2_mark_dirty(struct kvm_vcpu *vcpu, u16 iden) 645{ 646 return 0; 647} 648 649static inline int kvmhv_nestedv2_cached_reload(struct kvm_vcpu *vcpu, u16 iden) 650{ 651 return 0; 652} 653 654#endif 655 656#ifdef CONFIG_KVM_XICS 657static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu) 658{ 659 return vcpu->arch.irq_type == KVMPPC_IRQ_XICS; 660} 661 662static inline struct kvmppc_passthru_irqmap *kvmppc_get_passthru_irqmap( 663 struct kvm *kvm) 664{ 665 if (kvm && kvm_irq_bypass) 666 return kvm->arch.pimap; 667 return NULL; 668} 669 670extern void kvmppc_alloc_host_rm_ops(void); 671extern void kvmppc_free_host_rm_ops(void); 672extern void kvmppc_free_pimap(struct kvm *kvm); 673extern int kvmppc_xics_rm_complete(struct kvm_vcpu *vcpu, u32 hcall); 674extern void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu); 675extern int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd); 676extern int kvmppc_xive_xics_hcall(struct kvm_vcpu *vcpu, u32 req); 677extern u64 kvmppc_xics_get_icp(struct kvm_vcpu *vcpu); 678extern int kvmppc_xics_set_icp(struct kvm_vcpu *vcpu, u64 icpval); 679extern int kvmppc_xics_connect_vcpu(struct kvm_device *dev, 680 struct kvm_vcpu *vcpu, u32 cpu); 681extern void kvmppc_xics_ipi_action(void); 682extern void kvmppc_xics_set_mapped(struct kvm *kvm, unsigned long guest_irq, 683 unsigned long host_irq); 684extern void kvmppc_xics_clr_mapped(struct kvm *kvm, unsigned long guest_irq, 685 unsigned long host_irq); 686extern long kvmppc_deliver_irq_passthru(struct kvm_vcpu *vcpu, __be32 xirr, 687 struct kvmppc_irq_map *irq_map, 688 struct kvmppc_passthru_irqmap *pimap, 689 bool *again); 690 691extern int kvmppc_xics_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, 692 int level, bool line_status); 693 694extern int h_ipi_redirect; 695#else 696static inline struct kvmppc_passthru_irqmap *kvmppc_get_passthru_irqmap( 697 struct kvm *kvm) 698 { return NULL; } 699static inline void kvmppc_alloc_host_rm_ops(void) {} 700static inline void kvmppc_free_host_rm_ops(void) {} 701static inline void kvmppc_free_pimap(struct kvm *kvm) {} 702static inline int kvmppc_xics_rm_complete(struct kvm_vcpu *vcpu, u32 hcall) 703 { return 0; } 704static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu) 705 { return 0; } 706static inline void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu) { } 707static inline int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd) 708 { return 0; } 709static inline int kvmppc_xive_xics_hcall(struct kvm_vcpu *vcpu, u32 req) 710 { return 0; } 711#endif 712 713#ifdef CONFIG_KVM_XIVE 714/* 715 * Below the first "xive" is the "eXternal Interrupt Virtualization Engine" 716 * ie. P9 new interrupt controller, while the second "xive" is the legacy 717 * "eXternal Interrupt Vector Entry" which is the configuration of an 718 * interrupt on the "xics" interrupt controller on P8 and earlier. Those 719 * two function consume or produce a legacy "XIVE" state from the 720 * new "XIVE" interrupt controller. 721 */ 722extern int kvmppc_xive_set_xive(struct kvm *kvm, u32 irq, u32 server, 723 u32 priority); 724extern int kvmppc_xive_get_xive(struct kvm *kvm, u32 irq, u32 *server, 725 u32 *priority); 726extern int kvmppc_xive_int_on(struct kvm *kvm, u32 irq); 727extern int kvmppc_xive_int_off(struct kvm *kvm, u32 irq); 728 729extern int kvmppc_xive_connect_vcpu(struct kvm_device *dev, 730 struct kvm_vcpu *vcpu, u32 cpu); 731extern void kvmppc_xive_cleanup_vcpu(struct kvm_vcpu *vcpu); 732extern int kvmppc_xive_set_mapped(struct kvm *kvm, unsigned long guest_irq, 733 unsigned long host_irq); 734extern int kvmppc_xive_clr_mapped(struct kvm *kvm, unsigned long guest_irq, 735 unsigned long host_irq); 736extern u64 kvmppc_xive_get_icp(struct kvm_vcpu *vcpu); 737extern int kvmppc_xive_set_icp(struct kvm_vcpu *vcpu, u64 icpval); 738 739extern int kvmppc_xive_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, 740 int level, bool line_status); 741extern void kvmppc_xive_push_vcpu(struct kvm_vcpu *vcpu); 742extern void kvmppc_xive_pull_vcpu(struct kvm_vcpu *vcpu); 743extern bool kvmppc_xive_rearm_escalation(struct kvm_vcpu *vcpu); 744 745static inline int kvmppc_xive_enabled(struct kvm_vcpu *vcpu) 746{ 747 return vcpu->arch.irq_type == KVMPPC_IRQ_XIVE; 748} 749 750extern int kvmppc_xive_native_connect_vcpu(struct kvm_device *dev, 751 struct kvm_vcpu *vcpu, u32 cpu); 752extern void kvmppc_xive_native_cleanup_vcpu(struct kvm_vcpu *vcpu); 753extern int kvmppc_xive_native_get_vp(struct kvm_vcpu *vcpu, 754 union kvmppc_one_reg *val); 755extern int kvmppc_xive_native_set_vp(struct kvm_vcpu *vcpu, 756 union kvmppc_one_reg *val); 757extern bool kvmppc_xive_native_supported(void); 758 759#else 760static inline int kvmppc_xive_set_xive(struct kvm *kvm, u32 irq, u32 server, 761 u32 priority) { return -1; } 762static inline int kvmppc_xive_get_xive(struct kvm *kvm, u32 irq, u32 *server, 763 u32 *priority) { return -1; } 764static inline int kvmppc_xive_int_on(struct kvm *kvm, u32 irq) { return -1; } 765static inline int kvmppc_xive_int_off(struct kvm *kvm, u32 irq) { return -1; } 766 767static inline int kvmppc_xive_connect_vcpu(struct kvm_device *dev, 768 struct kvm_vcpu *vcpu, u32 cpu) { return -EBUSY; } 769static inline void kvmppc_xive_cleanup_vcpu(struct kvm_vcpu *vcpu) { } 770static inline int kvmppc_xive_set_mapped(struct kvm *kvm, unsigned long guest_irq, 771 struct irq_desc *host_desc) { return -ENODEV; } 772static inline int kvmppc_xive_clr_mapped(struct kvm *kvm, unsigned long guest_irq, 773 struct irq_desc *host_desc) { return -ENODEV; } 774static inline u64 kvmppc_xive_get_icp(struct kvm_vcpu *vcpu) { return 0; } 775static inline int kvmppc_xive_set_icp(struct kvm_vcpu *vcpu, u64 icpval) { return -ENOENT; } 776 777static inline int kvmppc_xive_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, 778 int level, bool line_status) { return -ENODEV; } 779static inline void kvmppc_xive_push_vcpu(struct kvm_vcpu *vcpu) { } 780static inline void kvmppc_xive_pull_vcpu(struct kvm_vcpu *vcpu) { } 781static inline bool kvmppc_xive_rearm_escalation(struct kvm_vcpu *vcpu) { return true; } 782 783static inline int kvmppc_xive_enabled(struct kvm_vcpu *vcpu) 784 { return 0; } 785static inline int kvmppc_xive_native_connect_vcpu(struct kvm_device *dev, 786 struct kvm_vcpu *vcpu, u32 cpu) { return -EBUSY; } 787static inline void kvmppc_xive_native_cleanup_vcpu(struct kvm_vcpu *vcpu) { } 788static inline int kvmppc_xive_native_get_vp(struct kvm_vcpu *vcpu, 789 union kvmppc_one_reg *val) 790{ return 0; } 791static inline int kvmppc_xive_native_set_vp(struct kvm_vcpu *vcpu, 792 union kvmppc_one_reg *val) 793{ return -ENOENT; } 794 795#endif /* CONFIG_KVM_XIVE */ 796 797#if defined(CONFIG_PPC_POWERNV) && defined(CONFIG_KVM_BOOK3S_64_HANDLER) 798static inline bool xics_on_xive(void) 799{ 800 return xive_enabled() && cpu_has_feature(CPU_FTR_HVMODE); 801} 802#else 803static inline bool xics_on_xive(void) 804{ 805 return false; 806} 807#endif 808 809/* 810 * Prototypes for functions called only from assembler code. 811 * Having prototypes reduces sparse errors. 812 */ 813long kvmppc_rm_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn, 814 unsigned long ioba, unsigned long tce); 815long kvmppc_rm_h_put_tce_indirect(struct kvm_vcpu *vcpu, 816 unsigned long liobn, unsigned long ioba, 817 unsigned long tce_list, unsigned long npages); 818long kvmppc_rm_h_stuff_tce(struct kvm_vcpu *vcpu, 819 unsigned long liobn, unsigned long ioba, 820 unsigned long tce_value, unsigned long npages); 821long int kvmppc_rm_h_confer(struct kvm_vcpu *vcpu, int target, 822 unsigned int yield_count); 823long kvmppc_rm_h_random(struct kvm_vcpu *vcpu); 824void kvmhv_commence_exit(int trap); 825void kvmppc_realmode_machine_check(struct kvm_vcpu *vcpu); 826void kvmppc_subcore_enter_guest(void); 827void kvmppc_subcore_exit_guest(void); 828long kvmppc_realmode_hmi_handler(void); 829long kvmppc_p9_realmode_hmi_handler(struct kvm_vcpu *vcpu); 830long kvmppc_h_enter(struct kvm_vcpu *vcpu, unsigned long flags, 831 long pte_index, unsigned long pteh, unsigned long ptel); 832long kvmppc_h_remove(struct kvm_vcpu *vcpu, unsigned long flags, 833 unsigned long pte_index, unsigned long avpn); 834long kvmppc_h_bulk_remove(struct kvm_vcpu *vcpu); 835long kvmppc_h_protect(struct kvm_vcpu *vcpu, unsigned long flags, 836 unsigned long pte_index, unsigned long avpn); 837long kvmppc_h_read(struct kvm_vcpu *vcpu, unsigned long flags, 838 unsigned long pte_index); 839long kvmppc_h_clear_ref(struct kvm_vcpu *vcpu, unsigned long flags, 840 unsigned long pte_index); 841long kvmppc_h_clear_mod(struct kvm_vcpu *vcpu, unsigned long flags, 842 unsigned long pte_index); 843long kvmppc_rm_h_page_init(struct kvm_vcpu *vcpu, unsigned long flags, 844 unsigned long dest, unsigned long src); 845long kvmppc_hpte_hv_fault(struct kvm_vcpu *vcpu, unsigned long addr, 846 unsigned long slb_v, unsigned int status, bool data); 847void kvmppc_guest_entry_inject_int(struct kvm_vcpu *vcpu); 848 849/* 850 * Host-side operations we want to set up while running in real 851 * mode in the guest operating on the xics. 852 * Currently only VCPU wakeup is supported. 853 */ 854 855union kvmppc_rm_state { 856 unsigned long raw; 857 struct { 858 u32 in_host; 859 u32 rm_action; 860 }; 861}; 862 863struct kvmppc_host_rm_core { 864 union kvmppc_rm_state rm_state; 865 void *rm_data; 866 char pad[112]; 867}; 868 869struct kvmppc_host_rm_ops { 870 struct kvmppc_host_rm_core *rm_core; 871 void (*vcpu_kick)(struct kvm_vcpu *vcpu); 872}; 873 874extern struct kvmppc_host_rm_ops *kvmppc_host_rm_ops_hv; 875 876static inline unsigned long kvmppc_get_epr(struct kvm_vcpu *vcpu) 877{ 878#ifdef CONFIG_KVM_BOOKE_HV 879 return mfspr(SPRN_GEPR); 880#elif defined(CONFIG_BOOKE) 881 return vcpu->arch.epr; 882#else 883 return 0; 884#endif 885} 886 887static inline void kvmppc_set_epr(struct kvm_vcpu *vcpu, u32 epr) 888{ 889#ifdef CONFIG_KVM_BOOKE_HV 890 mtspr(SPRN_GEPR, epr); 891#elif defined(CONFIG_BOOKE) 892 vcpu->arch.epr = epr; 893#endif 894} 895 896#ifdef CONFIG_KVM_MPIC 897 898void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu); 899int kvmppc_mpic_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu, 900 u32 cpu); 901void kvmppc_mpic_disconnect_vcpu(struct openpic *opp, struct kvm_vcpu *vcpu); 902 903#else 904 905static inline void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu) 906{ 907} 908 909static inline int kvmppc_mpic_connect_vcpu(struct kvm_device *dev, 910 struct kvm_vcpu *vcpu, u32 cpu) 911{ 912 return -EINVAL; 913} 914 915static inline void kvmppc_mpic_disconnect_vcpu(struct openpic *opp, 916 struct kvm_vcpu *vcpu) 917{ 918} 919 920#endif /* CONFIG_KVM_MPIC */ 921 922int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu, 923 struct kvm_config_tlb *cfg); 924int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu *vcpu, 925 struct kvm_dirty_tlb *cfg); 926 927long kvmppc_alloc_lpid(void); 928void kvmppc_free_lpid(long lpid); 929void kvmppc_init_lpid(unsigned long nr_lpids); 930 931static inline void kvmppc_mmu_flush_icache(kvm_pfn_t pfn) 932{ 933 struct folio *folio; 934 /* 935 * We can only access pages that the kernel maps 936 * as memory. Bail out for unmapped ones. 937 */ 938 if (!pfn_valid(pfn)) 939 return; 940 941 /* Clear i-cache for new pages */ 942 folio = page_folio(pfn_to_page(pfn)); 943 if (!test_bit(PG_dcache_clean, &folio->flags)) { 944 flush_dcache_icache_folio(folio); 945 set_bit(PG_dcache_clean, &folio->flags); 946 } 947} 948 949/* 950 * Shared struct helpers. The shared struct can be little or big endian, 951 * depending on the guest endianness. So expose helpers to all of them. 952 */ 953static inline bool kvmppc_shared_big_endian(struct kvm_vcpu *vcpu) 954{ 955#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE) 956 /* Only Book3S_64 PR supports bi-endian for now */ 957 return vcpu->arch.shared_big_endian; 958#elif defined(CONFIG_PPC_BOOK3S_64) && defined(__LITTLE_ENDIAN__) 959 /* Book3s_64 HV on little endian is always little endian */ 960 return false; 961#else 962 return true; 963#endif 964} 965 966#define KVMPPC_BOOKE_HV_SPRNG_ACCESSOR_GET(reg, bookehv_spr) \ 967static inline ulong kvmppc_get_##reg(struct kvm_vcpu *vcpu) \ 968{ \ 969 return mfspr(bookehv_spr); \ 970} \ 971 972#define KVMPPC_BOOKE_HV_SPRNG_ACCESSOR_SET(reg, bookehv_spr) \ 973static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, ulong val) \ 974{ \ 975 mtspr(bookehv_spr, val); \ 976} \ 977 978#define KVMPPC_VCPU_SHARED_REGS_ACCESSOR_GET(reg, size, iden) \ 979static inline u##size kvmppc_get_##reg(struct kvm_vcpu *vcpu) \ 980{ \ 981 if (iden) \ 982 WARN_ON(kvmhv_nestedv2_cached_reload(vcpu, iden) < 0); \ 983 if (kvmppc_shared_big_endian(vcpu)) \ 984 return be##size##_to_cpu((__be##size __force)vcpu->arch.shared->reg); \ 985 else \ 986 return le##size##_to_cpu((__le##size __force)vcpu->arch.shared->reg); \ 987} \ 988 989#define KVMPPC_VCPU_SHARED_REGS_ACCESSOR_SET(reg, size, iden) \ 990static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, u##size val) \ 991{ \ 992 if (kvmppc_shared_big_endian(vcpu)) \ 993 vcpu->arch.shared->reg = (u##size __force)cpu_to_be##size(val); \ 994 else \ 995 vcpu->arch.shared->reg = (u##size __force)cpu_to_le##size(val); \ 996 \ 997 if (iden) \ 998 kvmhv_nestedv2_mark_dirty(vcpu, iden); \ 999} \ 1000 1001#define KVMPPC_VCPU_SHARED_REGS_ACCESSOR(reg, size, iden) \ 1002 KVMPPC_VCPU_SHARED_REGS_ACCESSOR_GET(reg, size, iden) \ 1003 KVMPPC_VCPU_SHARED_REGS_ACCESSOR_SET(reg, size, iden) \ 1004 1005#define KVMPPC_BOOKE_HV_SPRNG_ACCESSOR(reg, bookehv_spr) \ 1006 KVMPPC_BOOKE_HV_SPRNG_ACCESSOR_GET(reg, bookehv_spr) \ 1007 KVMPPC_BOOKE_HV_SPRNG_ACCESSOR_SET(reg, bookehv_spr) \ 1008 1009#ifdef CONFIG_KVM_BOOKE_HV 1010 1011#define KVMPPC_BOOKE_HV_SPRNG_OR_VCPU_SHARED_REGS_ACCESSOR(reg, size, bookehv_spr, iden) \ 1012 KVMPPC_BOOKE_HV_SPRNG_ACCESSOR(reg, bookehv_spr) \ 1013 1014#else 1015 1016#define KVMPPC_BOOKE_HV_SPRNG_OR_VCPU_SHARED_REGS_ACCESSOR(reg, size, bookehv_spr, iden) \ 1017 KVMPPC_VCPU_SHARED_REGS_ACCESSOR(reg, size, iden) \ 1018 1019#endif 1020 1021KVMPPC_VCPU_SHARED_REGS_ACCESSOR(critical, 64, 0) 1022KVMPPC_BOOKE_HV_SPRNG_OR_VCPU_SHARED_REGS_ACCESSOR(sprg0, 64, SPRN_GSPRG0, KVMPPC_GSID_SPRG0) 1023KVMPPC_BOOKE_HV_SPRNG_OR_VCPU_SHARED_REGS_ACCESSOR(sprg1, 64, SPRN_GSPRG1, KVMPPC_GSID_SPRG1) 1024KVMPPC_BOOKE_HV_SPRNG_OR_VCPU_SHARED_REGS_ACCESSOR(sprg2, 64, SPRN_GSPRG2, KVMPPC_GSID_SPRG2) 1025KVMPPC_BOOKE_HV_SPRNG_OR_VCPU_SHARED_REGS_ACCESSOR(sprg3, 64, SPRN_GSPRG3, KVMPPC_GSID_SPRG3) 1026KVMPPC_BOOKE_HV_SPRNG_OR_VCPU_SHARED_REGS_ACCESSOR(srr0, 64, SPRN_GSRR0, KVMPPC_GSID_SRR0) 1027KVMPPC_BOOKE_HV_SPRNG_OR_VCPU_SHARED_REGS_ACCESSOR(srr1, 64, SPRN_GSRR1, KVMPPC_GSID_SRR1) 1028KVMPPC_BOOKE_HV_SPRNG_OR_VCPU_SHARED_REGS_ACCESSOR(dar, 64, SPRN_GDEAR, KVMPPC_GSID_DAR) 1029KVMPPC_BOOKE_HV_SPRNG_OR_VCPU_SHARED_REGS_ACCESSOR(esr, 64, SPRN_GESR, 0) 1030KVMPPC_VCPU_SHARED_REGS_ACCESSOR_GET(msr, 64, KVMPPC_GSID_MSR) 1031static inline void kvmppc_set_msr_fast(struct kvm_vcpu *vcpu, u64 val) 1032{ 1033 if (kvmppc_shared_big_endian(vcpu)) 1034 vcpu->arch.shared->msr = cpu_to_be64(val); 1035 else 1036 vcpu->arch.shared->msr = cpu_to_le64(val); 1037 kvmhv_nestedv2_mark_dirty(vcpu, KVMPPC_GSID_MSR); 1038} 1039KVMPPC_VCPU_SHARED_REGS_ACCESSOR(dsisr, 32, KVMPPC_GSID_DSISR) 1040KVMPPC_VCPU_SHARED_REGS_ACCESSOR(int_pending, 32, 0) 1041KVMPPC_VCPU_SHARED_REGS_ACCESSOR(sprg4, 64, 0) 1042KVMPPC_VCPU_SHARED_REGS_ACCESSOR(sprg5, 64, 0) 1043KVMPPC_VCPU_SHARED_REGS_ACCESSOR(sprg6, 64, 0) 1044KVMPPC_VCPU_SHARED_REGS_ACCESSOR(sprg7, 64, 0) 1045 1046static inline u32 kvmppc_get_sr(struct kvm_vcpu *vcpu, int nr) 1047{ 1048 if (kvmppc_shared_big_endian(vcpu)) 1049 return be32_to_cpu(vcpu->arch.shared->sr[nr]); 1050 else 1051 return le32_to_cpu(vcpu->arch.shared->sr[nr]); 1052} 1053 1054static inline void kvmppc_set_sr(struct kvm_vcpu *vcpu, int nr, u32 val) 1055{ 1056 if (kvmppc_shared_big_endian(vcpu)) 1057 vcpu->arch.shared->sr[nr] = cpu_to_be32(val); 1058 else 1059 vcpu->arch.shared->sr[nr] = cpu_to_le32(val); 1060} 1061 1062/* 1063 * Please call after prepare_to_enter. This function puts the lazy ee and irq 1064 * disabled tracking state back to normal mode, without actually enabling 1065 * interrupts. 1066 */ 1067static inline void kvmppc_fix_ee_before_entry(void) 1068{ 1069 trace_hardirqs_on(); 1070 1071#ifdef CONFIG_PPC64 1072 /* 1073 * To avoid races, the caller must have gone directly from having 1074 * interrupts fully-enabled to hard-disabled. 1075 */ 1076 WARN_ON(local_paca->irq_happened != PACA_IRQ_HARD_DIS); 1077 1078 /* Only need to enable IRQs by hard enabling them after this */ 1079 local_paca->irq_happened = 0; 1080 irq_soft_mask_set(IRQS_ENABLED); 1081#endif 1082} 1083 1084static inline void kvmppc_fix_ee_after_exit(void) 1085{ 1086#ifdef CONFIG_PPC64 1087 /* Only need to enable IRQs by hard enabling them after this */ 1088 local_paca->irq_happened = PACA_IRQ_HARD_DIS; 1089 irq_soft_mask_set(IRQS_ALL_DISABLED); 1090#endif 1091 1092 trace_hardirqs_off(); 1093} 1094 1095 1096static inline ulong kvmppc_get_ea_indexed(struct kvm_vcpu *vcpu, int ra, int rb) 1097{ 1098 ulong ea; 1099 ulong msr_64bit = 0; 1100 1101 ea = kvmppc_get_gpr(vcpu, rb); 1102 if (ra) 1103 ea += kvmppc_get_gpr(vcpu, ra); 1104 1105#if defined(CONFIG_PPC_BOOK3E_64) 1106 msr_64bit = MSR_CM; 1107#elif defined(CONFIG_PPC_BOOK3S_64) 1108 msr_64bit = MSR_SF; 1109#endif 1110 1111 if (!(kvmppc_get_msr(vcpu) & msr_64bit)) 1112 ea = (uint32_t)ea; 1113 1114 return ea; 1115} 1116 1117extern void xics_wake_cpu(int cpu); 1118 1119#endif /* __POWERPC_KVM_PPC_H__ */ 1120