1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * 4 * Copyright IBM Corp. 2007 5 * 6 * Authors: Hollis Blanchard <hollisb@us.ibm.com> 7 */ 8 9 #ifndef __POWERPC_KVM_HOST_H__ 10 #define __POWERPC_KVM_HOST_H__ 11 12 #include <linux/mutex.h> 13 #include <linux/hrtimer.h> 14 #include <linux/interrupt.h> 15 #include <linux/types.h> 16 #include <linux/kvm_types.h> 17 #include <linux/threads.h> 18 #include <linux/spinlock.h> 19 #include <linux/kvm_para.h> 20 #include <linux/list.h> 21 #include <linux/atomic.h> 22 #include <asm/kvm_asm.h> 23 #include <asm/processor.h> 24 #include <asm/page.h> 25 #include <asm/cacheflush.h> 26 #include <asm/hvcall.h> 27 #include <asm/mce.h> 28 #include <asm/guest-state-buffer.h> 29 30 #define __KVM_HAVE_ARCH_VCPU_DEBUGFS 31 32 #define KVM_MAX_VCPUS NR_CPUS 33 #define KVM_MAX_VCORES NR_CPUS 34 35 #include <asm/cputhreads.h> 36 37 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 38 #include <asm/kvm_book3s_asm.h> /* for MAX_SMT_THREADS */ 39 #define KVM_MAX_VCPU_IDS (MAX_SMT_THREADS * KVM_MAX_VCORES) 40 41 /* 42 * Limit the nested partition table to 4096 entries (because that's what 43 * hardware supports). Both guest and host use this value. 44 */ 45 #define KVM_MAX_NESTED_GUESTS_SHIFT 12 46 47 #else 48 #define KVM_MAX_VCPU_IDS KVM_MAX_VCPUS 49 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */ 50 51 #define __KVM_HAVE_ARCH_INTC_INITIALIZED 52 53 #define KVM_HALT_POLL_NS_DEFAULT 10000 /* 10 us */ 54 55 /* These values are internal and can be increased later */ 56 #define KVM_NR_IRQCHIPS 1 57 #define KVM_IRQCHIP_NUM_PINS 256 58 59 /* PPC-specific vcpu->requests bit members */ 60 #define KVM_REQ_WATCHDOG KVM_ARCH_REQ(0) 61 #define KVM_REQ_EPR_EXIT KVM_ARCH_REQ(1) 62 #define KVM_REQ_PENDING_TIMER KVM_ARCH_REQ(2) 63 64 #include <linux/mmu_notifier.h> 65 66 #define HPTEG_CACHE_NUM (1 << 15) 67 #define HPTEG_HASH_BITS_PTE 13 68 #define HPTEG_HASH_BITS_PTE_LONG 12 69 #define HPTEG_HASH_BITS_VPTE 13 70 #define HPTEG_HASH_BITS_VPTE_LONG 5 71 #define HPTEG_HASH_BITS_VPTE_64K 11 72 #define HPTEG_HASH_NUM_PTE (1 << HPTEG_HASH_BITS_PTE) 73 #define HPTEG_HASH_NUM_PTE_LONG (1 << HPTEG_HASH_BITS_PTE_LONG) 74 #define HPTEG_HASH_NUM_VPTE (1 << HPTEG_HASH_BITS_VPTE) 75 #define HPTEG_HASH_NUM_VPTE_LONG (1 << HPTEG_HASH_BITS_VPTE_LONG) 76 #define HPTEG_HASH_NUM_VPTE_64K (1 << HPTEG_HASH_BITS_VPTE_64K) 77 78 /* Physical Address Mask - allowed range of real mode RAM access */ 79 #define KVM_PAM 0x0fffffffffffffffULL 80 81 struct lppaca; 82 struct slb_shadow; 83 struct dtl_entry; 84 85 struct kvmppc_vcpu_book3s; 86 struct kvmppc_book3s_shadow_vcpu; 87 struct kvm_nested_guest; 88 89 struct kvm_vm_stat { 90 struct kvm_vm_stat_generic generic; 91 u64 num_2M_pages; 92 u64 num_1G_pages; 93 }; 94 95 struct kvm_vcpu_stat { 96 struct kvm_vcpu_stat_generic generic; 97 u64 sum_exits; 98 u64 mmio_exits; 99 u64 signal_exits; 100 u64 light_exits; 101 /* Account for special types of light exits: */ 102 u64 itlb_real_miss_exits; 103 u64 itlb_virt_miss_exits; 104 u64 dtlb_real_miss_exits; 105 u64 dtlb_virt_miss_exits; 106 u64 syscall_exits; 107 u64 isi_exits; 108 u64 dsi_exits; 109 u64 emulated_inst_exits; 110 u64 dec_exits; 111 u64 ext_intr_exits; 112 u64 halt_successful_wait; 113 u64 dbell_exits; 114 u64 gdbell_exits; 115 u64 ld; 116 u64 st; 117 #ifdef CONFIG_PPC_BOOK3S 118 u64 pf_storage; 119 u64 pf_instruc; 120 u64 sp_storage; 121 u64 sp_instruc; 122 u64 queue_intr; 123 u64 ld_slow; 124 u64 st_slow; 125 #endif 126 u64 pthru_all; 127 u64 pthru_host; 128 u64 pthru_bad_aff; 129 }; 130 131 enum kvm_exit_types { 132 MMIO_EXITS, 133 SIGNAL_EXITS, 134 ITLB_REAL_MISS_EXITS, 135 ITLB_VIRT_MISS_EXITS, 136 DTLB_REAL_MISS_EXITS, 137 DTLB_VIRT_MISS_EXITS, 138 SYSCALL_EXITS, 139 ISI_EXITS, 140 DSI_EXITS, 141 EMULATED_INST_EXITS, 142 EMULATED_MTMSRWE_EXITS, 143 EMULATED_WRTEE_EXITS, 144 EMULATED_MTSPR_EXITS, 145 EMULATED_MFSPR_EXITS, 146 EMULATED_MTMSR_EXITS, 147 EMULATED_MFMSR_EXITS, 148 EMULATED_TLBSX_EXITS, 149 EMULATED_TLBWE_EXITS, 150 EMULATED_RFI_EXITS, 151 EMULATED_RFCI_EXITS, 152 EMULATED_RFDI_EXITS, 153 DEC_EXITS, 154 EXT_INTR_EXITS, 155 HALT_WAKEUP, 156 USR_PR_INST, 157 FP_UNAVAIL, 158 DEBUG_EXITS, 159 TIMEINGUEST, 160 DBELL_EXITS, 161 GDBELL_EXITS, 162 __NUMBER_OF_KVM_EXIT_TYPES 163 }; 164 165 /* allow access to big endian 32bit upper/lower parts and 64bit var */ 166 struct kvmppc_exit_timing { 167 union { 168 u64 tv64; 169 struct { 170 u32 tbu, tbl; 171 } tv32; 172 }; 173 }; 174 175 struct kvmppc_pginfo { 176 unsigned long pfn; 177 atomic_t refcnt; 178 }; 179 180 struct kvmppc_spapr_tce_iommu_table { 181 struct rcu_head rcu; 182 struct list_head next; 183 struct iommu_table *tbl; 184 struct kref kref; 185 }; 186 187 #define TCES_PER_PAGE (PAGE_SIZE / sizeof(u64)) 188 189 struct kvmppc_spapr_tce_table { 190 struct list_head list; 191 struct kvm *kvm; 192 u64 liobn; 193 struct rcu_head rcu; 194 u32 page_shift; 195 u64 offset; /* in pages */ 196 u64 size; /* window size in pages */ 197 struct list_head iommu_tables; 198 struct mutex alloc_lock; 199 struct page *pages[]; 200 }; 201 202 /* XICS components, defined in book3s_xics.c */ 203 struct kvmppc_xics; 204 struct kvmppc_icp; 205 extern struct kvm_device_ops kvm_xics_ops; 206 207 /* XIVE components, defined in book3s_xive.c */ 208 struct kvmppc_xive; 209 struct kvmppc_xive_vcpu; 210 extern struct kvm_device_ops kvm_xive_ops; 211 extern struct kvm_device_ops kvm_xive_native_ops; 212 213 struct kvmppc_passthru_irqmap; 214 215 /* 216 * The reverse mapping array has one entry for each HPTE, 217 * which stores the guest's view of the second word of the HPTE 218 * (including the guest physical address of the mapping), 219 * plus forward and backward pointers in a doubly-linked ring 220 * of HPTEs that map the same host page. The pointers in this 221 * ring are 32-bit HPTE indexes, to save space. 222 */ 223 struct revmap_entry { 224 unsigned long guest_rpte; 225 unsigned int forw, back; 226 }; 227 228 /* 229 * The rmap array of size number of guest pages is allocated for each memslot. 230 * This array is used to store usage specific information about the guest page. 231 * Below are the encodings of the various possible usage types. 232 */ 233 /* Free bits which can be used to define a new usage */ 234 #define KVMPPC_RMAP_TYPE_MASK 0xff00000000000000 235 #define KVMPPC_RMAP_NESTED 0xc000000000000000 /* Nested rmap array */ 236 #define KVMPPC_RMAP_HPT 0x0100000000000000 /* HPT guest */ 237 238 /* 239 * rmap usage definition for a hash page table (hpt) guest: 240 * 0x0000080000000000 Lock bit 241 * 0x0000018000000000 RC bits 242 * 0x0000000100000000 Present bit 243 * 0x00000000ffffffff HPT index bits 244 * The bottom 32 bits are the index in the guest HPT of a HPTE that points to 245 * the page. 246 */ 247 #define KVMPPC_RMAP_LOCK_BIT 43 248 #define KVMPPC_RMAP_RC_SHIFT 32 249 #define KVMPPC_RMAP_REFERENCED (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT) 250 #define KVMPPC_RMAP_PRESENT 0x100000000ul 251 #define KVMPPC_RMAP_INDEX 0xfffffffful 252 253 struct kvm_arch_memory_slot { 254 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 255 unsigned long *rmap; 256 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */ 257 }; 258 259 struct kvm_hpt_info { 260 /* Host virtual (linear mapping) address of guest HPT */ 261 unsigned long virt; 262 /* Array of reverse mapping entries for each guest HPTE */ 263 struct revmap_entry *rev; 264 /* Guest HPT size is 2**(order) bytes */ 265 u32 order; 266 /* 1 if HPT allocated with CMA, 0 otherwise */ 267 int cma; 268 }; 269 270 struct kvm_resize_hpt; 271 272 /* Flag values for kvm_arch.secure_guest */ 273 #define KVMPPC_SECURE_INIT_START 0x1 /* H_SVM_INIT_START has been called */ 274 #define KVMPPC_SECURE_INIT_DONE 0x2 /* H_SVM_INIT_DONE completed */ 275 #define KVMPPC_SECURE_INIT_ABORT 0x4 /* H_SVM_INIT_ABORT issued */ 276 277 struct kvm_arch { 278 u64 lpid; 279 unsigned int smt_mode; /* # vcpus per virtual core */ 280 unsigned int emul_smt_mode; /* emualted SMT mode, on P9 */ 281 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 282 unsigned int tlb_sets; 283 struct kvm_hpt_info hpt; 284 atomic64_t mmio_update; 285 unsigned int host_lpid; 286 unsigned long host_lpcr; 287 unsigned long sdr1; 288 unsigned long host_sdr1; 289 unsigned long lpcr; 290 unsigned long vrma_slb_v; 291 int mmu_ready; 292 atomic_t vcpus_running; 293 u32 online_vcores; 294 atomic_t hpte_mod_interest; 295 cpumask_t need_tlb_flush; 296 u8 radix; 297 u8 fwnmi_enabled; 298 u8 secure_guest; 299 u8 svm_enabled; 300 bool nested_enable; 301 bool dawr1_enabled; 302 pgd_t *pgtable; 303 u64 process_table; 304 struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */ 305 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */ 306 #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE 307 struct mutex hpt_mutex; 308 #endif 309 #ifdef CONFIG_PPC_BOOK3S_64 310 struct list_head spapr_tce_tables; 311 struct list_head rtas_tokens; 312 struct mutex rtas_token_lock; 313 DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1); 314 #endif 315 #ifdef CONFIG_KVM_MPIC 316 struct openpic *mpic; 317 #endif 318 #ifdef CONFIG_KVM_XICS 319 struct kvmppc_xics *xics; 320 struct kvmppc_xics *xics_device; 321 struct kvmppc_xive *xive; /* Current XIVE device in use */ 322 struct { 323 struct kvmppc_xive *native; 324 struct kvmppc_xive *xics_on_xive; 325 } xive_devices; 326 struct kvmppc_passthru_irqmap *pimap; 327 #endif 328 struct kvmppc_ops *kvm_ops; 329 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 330 struct mutex uvmem_lock; 331 struct list_head uvmem_pfns; 332 struct mutex mmu_setup_lock; /* nests inside vcpu mutexes */ 333 u64 l1_ptcr; 334 struct idr kvm_nested_guest_idr; 335 /* This array can grow quite large, keep it at the end */ 336 struct kvmppc_vcore *vcores[KVM_MAX_VCORES]; 337 #endif 338 }; 339 340 #define VCORE_ENTRY_MAP(vc) ((vc)->entry_exit_map & 0xff) 341 #define VCORE_EXIT_MAP(vc) ((vc)->entry_exit_map >> 8) 342 #define VCORE_IS_EXITING(vc) (VCORE_EXIT_MAP(vc) != 0) 343 344 /* This bit is used when a vcore exit is triggered from outside the vcore */ 345 #define VCORE_EXIT_REQ 0x10000 346 347 /* 348 * Values for vcore_state. 349 * Note that these are arranged such that lower values 350 * (< VCORE_SLEEPING) don't require stolen time accounting 351 * on load/unload, and higher values do. 352 */ 353 #define VCORE_INACTIVE 0 354 #define VCORE_PREEMPT 1 355 #define VCORE_PIGGYBACK 2 356 #define VCORE_SLEEPING 3 357 #define VCORE_RUNNING 4 358 #define VCORE_EXITING 5 359 #define VCORE_POLLING 6 360 361 /* 362 * Struct used to manage memory for a virtual processor area 363 * registered by a PAPR guest. There are three types of area 364 * that a guest can register. 365 */ 366 struct kvmppc_vpa { 367 unsigned long gpa; /* Current guest phys addr */ 368 void *pinned_addr; /* Address in kernel linear mapping */ 369 void *pinned_end; /* End of region */ 370 unsigned long next_gpa; /* Guest phys addr for update */ 371 unsigned long len; /* Number of bytes required */ 372 u8 update_pending; /* 1 => update pinned_addr from next_gpa */ 373 bool dirty; /* true => area has been modified by kernel */ 374 }; 375 376 struct kvmppc_pte { 377 ulong eaddr; 378 u64 vpage; 379 ulong raddr; 380 bool may_read : 1; 381 bool may_write : 1; 382 bool may_execute : 1; 383 unsigned long wimg; 384 unsigned long rc; 385 u8 page_size; /* MMU_PAGE_xxx */ 386 u8 page_shift; 387 }; 388 389 struct kvmppc_mmu { 390 /* book3s_64 only */ 391 void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs); 392 u64 (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr); 393 u64 (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr); 394 int (*slbfee)(struct kvm_vcpu *vcpu, gva_t eaddr, ulong *ret_slb); 395 void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr); 396 void (*slbia)(struct kvm_vcpu *vcpu); 397 /* book3s */ 398 void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value); 399 u32 (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum); 400 int (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr, 401 struct kvmppc_pte *pte, bool data, bool iswrite); 402 void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large); 403 int (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid); 404 u64 (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data); 405 bool (*is_dcbz32)(struct kvm_vcpu *vcpu); 406 }; 407 408 struct kvmppc_slb { 409 u64 esid; 410 u64 vsid; 411 u64 orige; 412 u64 origv; 413 bool valid : 1; 414 bool Ks : 1; 415 bool Kp : 1; 416 bool nx : 1; 417 bool large : 1; /* PTEs are 16MB */ 418 bool tb : 1; /* 1TB segment */ 419 bool class : 1; 420 u8 base_page_size; /* MMU_PAGE_xxx */ 421 }; 422 423 /* Struct used to accumulate timing information in HV real mode code */ 424 struct kvmhv_tb_accumulator { 425 u64 seqcount; /* used to synchronize access, also count * 2 */ 426 u64 tb_total; /* total time in timebase ticks */ 427 u64 tb_min; /* min time */ 428 u64 tb_max; /* max time */ 429 }; 430 431 #ifdef CONFIG_PPC_BOOK3S_64 432 struct kvmppc_irq_map { 433 u32 r_hwirq; 434 u32 v_hwirq; 435 struct irq_desc *desc; 436 }; 437 438 #define KVMPPC_PIRQ_MAPPED 1024 439 struct kvmppc_passthru_irqmap { 440 int n_mapped; 441 struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED]; 442 }; 443 #endif 444 445 # ifdef CONFIG_PPC_E500 446 #define KVMPPC_BOOKE_IAC_NUM 2 447 #define KVMPPC_BOOKE_DAC_NUM 2 448 # else 449 #define KVMPPC_BOOKE_IAC_NUM 4 450 #define KVMPPC_BOOKE_DAC_NUM 2 451 # endif 452 #define KVMPPC_BOOKE_MAX_IAC 4 453 #define KVMPPC_BOOKE_MAX_DAC 2 454 455 /* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */ 456 #define KVMPPC_EPR_NONE 0 /* EPR not supported */ 457 #define KVMPPC_EPR_USER 1 /* exit to userspace to fill EPR */ 458 #define KVMPPC_EPR_KERNEL 2 /* in-kernel irqchip */ 459 460 #define KVMPPC_IRQ_DEFAULT 0 461 #define KVMPPC_IRQ_MPIC 1 462 #define KVMPPC_IRQ_XICS 2 /* Includes a XIVE option */ 463 #define KVMPPC_IRQ_XIVE 3 /* XIVE native exploitation mode */ 464 465 #define MMIO_HPTE_CACHE_SIZE 4 466 467 struct mmio_hpte_cache_entry { 468 unsigned long hpte_v; 469 unsigned long hpte_r; 470 unsigned long rpte; 471 unsigned long pte_index; 472 unsigned long eaddr; 473 unsigned long slb_v; 474 long mmio_update; 475 unsigned int slb_base_pshift; 476 }; 477 478 struct mmio_hpte_cache { 479 struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE]; 480 unsigned int index; 481 }; 482 483 #define KVMPPC_VSX_COPY_NONE 0 484 #define KVMPPC_VSX_COPY_WORD 1 485 #define KVMPPC_VSX_COPY_DWORD 2 486 #define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP 3 487 #define KVMPPC_VSX_COPY_WORD_LOAD_DUMP 4 488 489 #define KVMPPC_VMX_COPY_BYTE 8 490 #define KVMPPC_VMX_COPY_HWORD 9 491 #define KVMPPC_VMX_COPY_WORD 10 492 #define KVMPPC_VMX_COPY_DWORD 11 493 494 struct openpic; 495 496 /* W0 and W1 of a XIVE thread management context */ 497 union xive_tma_w01 { 498 struct { 499 u8 nsr; 500 u8 cppr; 501 u8 ipb; 502 u8 lsmfb; 503 u8 ack; 504 u8 inc; 505 u8 age; 506 u8 pipr; 507 }; 508 __be64 w01; 509 }; 510 511 /* Nestedv2 H_GUEST_RUN_VCPU configuration */ 512 struct kvmhv_nestedv2_config { 513 struct kvmppc_gs_buff_info vcpu_run_output_cfg; 514 struct kvmppc_gs_buff_info vcpu_run_input_cfg; 515 u64 vcpu_run_output_size; 516 }; 517 518 /* Nestedv2 L1<->L0 communication state */ 519 struct kvmhv_nestedv2_io { 520 struct kvmhv_nestedv2_config cfg; 521 struct kvmppc_gs_buff *vcpu_run_output; 522 struct kvmppc_gs_buff *vcpu_run_input; 523 struct kvmppc_gs_msg *vcpu_message; 524 struct kvmppc_gs_msg *vcore_message; 525 struct kvmppc_gs_bitmap valids; 526 }; 527 528 struct kvm_vcpu_arch { 529 ulong host_stack; 530 u32 host_pid; 531 #ifdef CONFIG_PPC_BOOK3S 532 struct kvmppc_slb slb[64]; 533 int slb_max; /* 1 + index of last valid entry in slb[] */ 534 int slb_nr; /* total number of entries in SLB */ 535 struct kvmppc_mmu mmu; 536 struct kvmppc_vcpu_book3s *book3s; 537 #endif 538 #ifdef CONFIG_PPC_BOOK3S_32 539 struct kvmppc_book3s_shadow_vcpu *shadow_vcpu; 540 #endif 541 542 /* 543 * This is passed along to the HV via H_ENTER_NESTED. Align to 544 * prevent it crossing a real 4K page. 545 */ 546 struct pt_regs regs __aligned(512); 547 548 struct thread_fp_state fp; 549 550 #ifdef CONFIG_SPE 551 ulong evr[32]; 552 ulong spefscr; 553 ulong host_spefscr; 554 u64 acc; 555 #endif 556 #ifdef CONFIG_ALTIVEC 557 struct thread_vr_state vr; 558 #endif 559 560 #ifdef CONFIG_KVM_BOOKE_HV 561 u32 host_mas4; 562 u32 host_mas6; 563 u32 shadow_epcr; 564 u32 shadow_msrp; 565 u32 eplc; 566 u32 epsc; 567 u32 oldpir; 568 #endif 569 570 #if defined(CONFIG_BOOKE) 571 #if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT) 572 u32 epcr; 573 #endif 574 #endif 575 576 #ifdef CONFIG_PPC_BOOK3S 577 /* For Gekko paired singles */ 578 u32 qpr[32]; 579 #endif 580 581 #ifdef CONFIG_PPC_BOOK3S 582 ulong tar; 583 #endif 584 585 #ifdef CONFIG_PPC_BOOK3S 586 ulong hflags; 587 ulong guest_owned_ext; 588 ulong purr; 589 ulong spurr; 590 ulong ic; 591 ulong dscr; 592 ulong amr; 593 ulong uamor; 594 ulong iamr; 595 u32 ctrl; 596 u32 dabrx; 597 ulong dabr; 598 ulong dawr0; 599 ulong dawrx0; 600 ulong dawr1; 601 ulong dawrx1; 602 ulong ciabr; 603 ulong cfar; 604 ulong ppr; 605 u32 pspb; 606 u8 load_ebb; 607 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM 608 u8 load_tm; 609 #endif 610 ulong fscr; 611 ulong shadow_fscr; 612 ulong ebbhr; 613 ulong ebbrr; 614 ulong bescr; 615 ulong csigr; 616 ulong tacr; 617 ulong tcscr; 618 ulong acop; 619 ulong wort; 620 ulong tid; 621 ulong psscr; 622 ulong hfscr; 623 ulong shadow_srr1; 624 #endif 625 u32 vrsave; /* also USPRG0 */ 626 u32 mmucr; 627 /* shadow_msr is unused for BookE HV */ 628 ulong shadow_msr; 629 ulong csrr0; 630 ulong csrr1; 631 ulong dsrr0; 632 ulong dsrr1; 633 ulong mcsrr0; 634 ulong mcsrr1; 635 ulong mcsr; 636 ulong dec; 637 #ifdef CONFIG_BOOKE 638 u32 decar; 639 #endif 640 /* Time base value when we entered the guest */ 641 u64 entry_tb; 642 u64 entry_vtb; 643 u64 entry_ic; 644 u32 tcr; 645 ulong tsr; /* we need to perform set/clr_bits() which requires ulong */ 646 u32 ivor[64]; 647 ulong ivpr; 648 u32 pvr; 649 650 u32 shadow_pid; 651 u32 shadow_pid1; 652 u32 pid; 653 u32 swap_pid; 654 655 u32 ccr0; 656 u32 ccr1; 657 u32 dbsr; 658 659 u64 mmcr[4]; /* MMCR0, MMCR1, MMCR2, MMCR3 */ 660 u64 mmcra; 661 u64 mmcrs; 662 u32 pmc[8]; 663 u32 spmc[2]; 664 u64 siar; 665 u64 sdar; 666 u64 sier[3]; 667 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM 668 u64 tfhar; 669 u64 texasr; 670 u64 tfiar; 671 u64 orig_texasr; 672 673 u32 cr_tm; 674 u64 xer_tm; 675 u64 lr_tm; 676 u64 ctr_tm; 677 u64 amr_tm; 678 u64 ppr_tm; 679 u64 dscr_tm; 680 u64 tar_tm; 681 682 ulong gpr_tm[32]; 683 684 struct thread_fp_state fp_tm; 685 686 struct thread_vr_state vr_tm; 687 u32 vrsave_tm; /* also USPRG0 */ 688 #endif 689 690 #ifdef CONFIG_KVM_EXIT_TIMING 691 struct mutex exit_timing_lock; 692 struct kvmppc_exit_timing timing_exit; 693 struct kvmppc_exit_timing timing_last_enter; 694 u32 last_exit_type; 695 u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES]; 696 u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 697 u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 698 u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 699 u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 700 u64 timing_last_exit; 701 #endif 702 703 #ifdef CONFIG_PPC_BOOK3S 704 ulong fault_dar; 705 u32 fault_dsisr; 706 unsigned long intr_msr; 707 /* 708 * POWER9 and later: fault_gpa contains the guest real address of page 709 * fault for a radix guest, or segment descriptor (equivalent to result 710 * from slbmfev of SLB entry that translated the EA) for hash guests. 711 */ 712 ulong fault_gpa; 713 #endif 714 715 #ifdef CONFIG_BOOKE 716 ulong fault_dear; 717 ulong fault_esr; 718 ulong queued_dear; 719 ulong queued_esr; 720 spinlock_t wdt_lock; 721 struct timer_list wdt_timer; 722 u32 tlbcfg[4]; 723 u32 tlbps[4]; 724 u32 mmucfg; 725 u32 eptcfg; 726 u32 epr; 727 u64 sprg9; 728 u32 pwrmgtcr0; 729 u32 crit_save; 730 /* guest debug registers*/ 731 struct debug_reg dbg_reg; 732 #endif 733 gpa_t paddr_accessed; 734 gva_t vaddr_accessed; 735 pgd_t *pgdir; 736 737 u16 io_gpr; /* GPR used as IO source/target */ 738 u8 mmio_host_swabbed; 739 u8 mmio_sign_extend; 740 /* conversion between single and double precision */ 741 u8 mmio_sp64_extend; 742 /* 743 * Number of simulations for vsx. 744 * If we use 2*8bytes to simulate 1*16bytes, 745 * then the number should be 2 and 746 * mmio_copy_type=KVMPPC_VSX_COPY_DWORD. 747 * If we use 4*4bytes to simulate 1*16bytes, 748 * the number should be 4 and 749 * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD. 750 */ 751 u8 mmio_vsx_copy_nums; 752 u8 mmio_vsx_offset; 753 u8 mmio_vmx_copy_nums; 754 u8 mmio_vmx_offset; 755 u8 mmio_copy_type; 756 u8 osi_needed; 757 u8 osi_enabled; 758 u8 papr_enabled; 759 u8 watchdog_enabled; 760 u8 sane; 761 u8 cpu_type; 762 u8 hcall_needed; 763 u8 epr_flags; /* KVMPPC_EPR_xxx */ 764 u8 epr_needed; 765 u8 external_oneshot; /* clear external irq after delivery */ 766 767 u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */ 768 769 struct hrtimer dec_timer; 770 u64 dec_jiffies; 771 u64 dec_expires; /* Relative to guest timebase. */ 772 unsigned long pending_exceptions; 773 u8 ceded; 774 u8 prodded; 775 u8 doorbell_request; 776 u8 irq_pending; /* Used by XIVE to signal pending guest irqs */ 777 unsigned long last_inst; 778 779 struct rcuwait wait; 780 struct rcuwait *waitp; 781 struct kvmppc_vcore *vcore; 782 int ret; 783 int trap; 784 int state; 785 int ptid; 786 int thread_cpu; 787 int prev_cpu; 788 bool timer_running; 789 wait_queue_head_t cpu_run; 790 struct machine_check_event mce_evt; /* Valid if trap == 0x200 */ 791 792 struct kvm_vcpu_arch_shared *shared; 793 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE) 794 bool shared_big_endian; 795 #endif 796 unsigned long magic_page_pa; /* phys addr to map the magic page to */ 797 unsigned long magic_page_ea; /* effect. addr to map the magic page to */ 798 bool disable_kernel_nx; 799 800 int irq_type; /* one of KVM_IRQ_* */ 801 int irq_cpu_id; 802 struct openpic *mpic; /* KVM_IRQ_MPIC */ 803 #ifdef CONFIG_KVM_XICS 804 struct kvmppc_icp *icp; /* XICS presentation controller */ 805 struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */ 806 __be32 xive_cam_word; /* Cooked W2 in proper endian with valid bit */ 807 u8 xive_pushed; /* Is the VP pushed on the physical CPU ? */ 808 u8 xive_esc_on; /* Is the escalation irq enabled ? */ 809 union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */ 810 u64 xive_esc_raddr; /* Escalation interrupt ESB real addr */ 811 u64 xive_esc_vaddr; /* Escalation interrupt ESB virt addr */ 812 #endif 813 814 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 815 struct kvm_vcpu_arch_shared shregs; 816 817 struct mmio_hpte_cache mmio_cache; 818 unsigned long pgfault_addr; 819 long pgfault_index; 820 unsigned long pgfault_hpte[2]; 821 struct mmio_hpte_cache_entry *pgfault_cache; 822 823 struct task_struct *run_task; 824 825 spinlock_t vpa_update_lock; 826 struct kvmppc_vpa vpa; 827 struct kvmppc_vpa dtl; 828 struct dtl_entry *dtl_ptr; 829 unsigned long dtl_index; 830 u64 stolen_logged; 831 struct kvmppc_vpa slb_shadow; 832 833 spinlock_t tbacct_lock; 834 u64 busy_stolen; 835 u64 busy_preempt; 836 837 u64 emul_inst; 838 839 u32 online; 840 841 u64 hfscr_permitted; /* A mask of permitted HFSCR facilities */ 842 843 /* For support of nested guests */ 844 struct kvm_nested_guest *nested; 845 u64 nested_hfscr; /* HFSCR that the L1 requested for the nested guest */ 846 u32 nested_vcpu_id; 847 gpa_t nested_io_gpr; 848 /* For nested APIv2 guests*/ 849 struct kvmhv_nestedv2_io nestedv2_io; 850 #endif 851 852 #ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING 853 struct kvmhv_tb_accumulator *cur_activity; /* What we're timing */ 854 u64 cur_tb_start; /* when it started */ 855 #ifdef CONFIG_KVM_BOOK3S_HV_P9_TIMING 856 struct kvmhv_tb_accumulator vcpu_entry; 857 struct kvmhv_tb_accumulator vcpu_exit; 858 struct kvmhv_tb_accumulator in_guest; 859 struct kvmhv_tb_accumulator hcall; 860 struct kvmhv_tb_accumulator pg_fault; 861 struct kvmhv_tb_accumulator guest_entry; 862 struct kvmhv_tb_accumulator guest_exit; 863 #else 864 struct kvmhv_tb_accumulator rm_entry; /* real-mode entry code */ 865 struct kvmhv_tb_accumulator rm_intr; /* real-mode intr handling */ 866 struct kvmhv_tb_accumulator rm_exit; /* real-mode exit code */ 867 struct kvmhv_tb_accumulator guest_time; /* guest execution */ 868 struct kvmhv_tb_accumulator cede_time; /* time napping inside guest */ 869 #endif 870 #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */ 871 }; 872 873 #define VCPU_FPR(vcpu, i) (vcpu)->arch.fp.fpr[i][TS_FPROFFSET] 874 #define VCPU_VSX_FPR(vcpu, i, j) ((vcpu)->arch.fp.fpr[i][j]) 875 #define VCPU_VSX_VR(vcpu, i) ((vcpu)->arch.vr.vr[i]) 876 877 /* Values for vcpu->arch.state */ 878 #define KVMPPC_VCPU_NOTREADY 0 879 #define KVMPPC_VCPU_RUNNABLE 1 880 #define KVMPPC_VCPU_BUSY_IN_HOST 2 881 882 /* Values for vcpu->arch.io_gpr */ 883 #define KVM_MMIO_REG_MASK 0x003f 884 #define KVM_MMIO_REG_EXT_MASK 0xffc0 885 #define KVM_MMIO_REG_GPR 0x0000 886 #define KVM_MMIO_REG_FPR 0x0040 887 #define KVM_MMIO_REG_QPR 0x0080 888 #define KVM_MMIO_REG_FQPR 0x00c0 889 #define KVM_MMIO_REG_VSX 0x0100 890 #define KVM_MMIO_REG_VMX 0x0180 891 #define KVM_MMIO_REG_NESTED_GPR 0xffc0 892 893 894 #define __KVM_HAVE_ARCH_WQP 895 #define __KVM_HAVE_CREATE_DEVICE 896 897 static inline void kvm_arch_sync_events(struct kvm *kvm) {} 898 static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {} 899 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {} 900 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {} 901 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {} 902 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {} 903 904 #endif /* __POWERPC_KVM_HOST_H__ */ 905