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 29 #define KVM_MAX_VCPUS NR_CPUS 30 #define KVM_MAX_VCORES NR_CPUS 31 #define KVM_USER_MEM_SLOTS 512 32 33 #include <asm/cputhreads.h> 34 35 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 36 #include <asm/kvm_book3s_asm.h> /* for MAX_SMT_THREADS */ 37 #define KVM_MAX_VCPU_ID (MAX_SMT_THREADS * KVM_MAX_VCORES) 38 #define KVM_MAX_NESTED_GUESTS KVMPPC_NR_LPIDS 39 40 #else 41 #define KVM_MAX_VCPU_ID KVM_MAX_VCPUS 42 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */ 43 44 #define __KVM_HAVE_ARCH_INTC_INITIALIZED 45 46 #define KVM_HALT_POLL_NS_DEFAULT 10000 /* 10 us */ 47 48 /* These values are internal and can be increased later */ 49 #define KVM_NR_IRQCHIPS 1 50 #define KVM_IRQCHIP_NUM_PINS 256 51 52 /* PPC-specific vcpu->requests bit members */ 53 #define KVM_REQ_WATCHDOG KVM_ARCH_REQ(0) 54 #define KVM_REQ_EPR_EXIT KVM_ARCH_REQ(1) 55 56 #include <linux/mmu_notifier.h> 57 58 #define KVM_ARCH_WANT_MMU_NOTIFIER 59 60 extern int kvm_unmap_hva_range(struct kvm *kvm, 61 unsigned long start, unsigned long end, 62 unsigned flags); 63 extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end); 64 extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva); 65 extern int kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte); 66 67 #define HPTEG_CACHE_NUM (1 << 15) 68 #define HPTEG_HASH_BITS_PTE 13 69 #define HPTEG_HASH_BITS_PTE_LONG 12 70 #define HPTEG_HASH_BITS_VPTE 13 71 #define HPTEG_HASH_BITS_VPTE_LONG 5 72 #define HPTEG_HASH_BITS_VPTE_64K 11 73 #define HPTEG_HASH_NUM_PTE (1 << HPTEG_HASH_BITS_PTE) 74 #define HPTEG_HASH_NUM_PTE_LONG (1 << HPTEG_HASH_BITS_PTE_LONG) 75 #define HPTEG_HASH_NUM_VPTE (1 << HPTEG_HASH_BITS_VPTE) 76 #define HPTEG_HASH_NUM_VPTE_LONG (1 << HPTEG_HASH_BITS_VPTE_LONG) 77 #define HPTEG_HASH_NUM_VPTE_64K (1 << HPTEG_HASH_BITS_VPTE_64K) 78 79 /* Physical Address Mask - allowed range of real mode RAM access */ 80 #define KVM_PAM 0x0fffffffffffffffULL 81 82 struct lppaca; 83 struct slb_shadow; 84 struct dtl_entry; 85 86 struct kvmppc_vcpu_book3s; 87 struct kvmppc_book3s_shadow_vcpu; 88 struct kvm_nested_guest; 89 90 struct kvm_vm_stat { 91 ulong remote_tlb_flush; 92 ulong num_2M_pages; 93 ulong num_1G_pages; 94 }; 95 96 struct kvm_vcpu_stat { 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_poll_success_ns; 113 u64 halt_poll_fail_ns; 114 u64 halt_wait_ns; 115 u64 halt_successful_poll; 116 u64 halt_attempted_poll; 117 u64 halt_successful_wait; 118 u64 halt_poll_invalid; 119 u64 halt_wakeup; 120 u64 dbell_exits; 121 u64 gdbell_exits; 122 u64 ld; 123 u64 st; 124 #ifdef CONFIG_PPC_BOOK3S 125 u64 pf_storage; 126 u64 pf_instruc; 127 u64 sp_storage; 128 u64 sp_instruc; 129 u64 queue_intr; 130 u64 ld_slow; 131 u64 st_slow; 132 #endif 133 u64 pthru_all; 134 u64 pthru_host; 135 u64 pthru_bad_aff; 136 }; 137 138 enum kvm_exit_types { 139 MMIO_EXITS, 140 SIGNAL_EXITS, 141 ITLB_REAL_MISS_EXITS, 142 ITLB_VIRT_MISS_EXITS, 143 DTLB_REAL_MISS_EXITS, 144 DTLB_VIRT_MISS_EXITS, 145 SYSCALL_EXITS, 146 ISI_EXITS, 147 DSI_EXITS, 148 EMULATED_INST_EXITS, 149 EMULATED_MTMSRWE_EXITS, 150 EMULATED_WRTEE_EXITS, 151 EMULATED_MTSPR_EXITS, 152 EMULATED_MFSPR_EXITS, 153 EMULATED_MTMSR_EXITS, 154 EMULATED_MFMSR_EXITS, 155 EMULATED_TLBSX_EXITS, 156 EMULATED_TLBWE_EXITS, 157 EMULATED_RFI_EXITS, 158 EMULATED_RFCI_EXITS, 159 EMULATED_RFDI_EXITS, 160 DEC_EXITS, 161 EXT_INTR_EXITS, 162 HALT_WAKEUP, 163 USR_PR_INST, 164 FP_UNAVAIL, 165 DEBUG_EXITS, 166 TIMEINGUEST, 167 DBELL_EXITS, 168 GDBELL_EXITS, 169 __NUMBER_OF_KVM_EXIT_TYPES 170 }; 171 172 /* allow access to big endian 32bit upper/lower parts and 64bit var */ 173 struct kvmppc_exit_timing { 174 union { 175 u64 tv64; 176 struct { 177 u32 tbu, tbl; 178 } tv32; 179 }; 180 }; 181 182 struct kvmppc_pginfo { 183 unsigned long pfn; 184 atomic_t refcnt; 185 }; 186 187 struct kvmppc_spapr_tce_iommu_table { 188 struct rcu_head rcu; 189 struct list_head next; 190 struct iommu_table *tbl; 191 struct kref kref; 192 }; 193 194 #define TCES_PER_PAGE (PAGE_SIZE / sizeof(u64)) 195 196 struct kvmppc_spapr_tce_table { 197 struct list_head list; 198 struct kvm *kvm; 199 u64 liobn; 200 struct rcu_head rcu; 201 u32 page_shift; 202 u64 offset; /* in pages */ 203 u64 size; /* window size in pages */ 204 struct list_head iommu_tables; 205 struct mutex alloc_lock; 206 struct page *pages[0]; 207 }; 208 209 /* XICS components, defined in book3s_xics.c */ 210 struct kvmppc_xics; 211 struct kvmppc_icp; 212 extern struct kvm_device_ops kvm_xics_ops; 213 214 /* XIVE components, defined in book3s_xive.c */ 215 struct kvmppc_xive; 216 struct kvmppc_xive_vcpu; 217 extern struct kvm_device_ops kvm_xive_ops; 218 extern struct kvm_device_ops kvm_xive_native_ops; 219 220 struct kvmppc_passthru_irqmap; 221 222 /* 223 * The reverse mapping array has one entry for each HPTE, 224 * which stores the guest's view of the second word of the HPTE 225 * (including the guest physical address of the mapping), 226 * plus forward and backward pointers in a doubly-linked ring 227 * of HPTEs that map the same host page. The pointers in this 228 * ring are 32-bit HPTE indexes, to save space. 229 */ 230 struct revmap_entry { 231 unsigned long guest_rpte; 232 unsigned int forw, back; 233 }; 234 235 /* 236 * The rmap array of size number of guest pages is allocated for each memslot. 237 * This array is used to store usage specific information about the guest page. 238 * Below are the encodings of the various possible usage types. 239 */ 240 /* Free bits which can be used to define a new usage */ 241 #define KVMPPC_RMAP_TYPE_MASK 0xff00000000000000 242 #define KVMPPC_RMAP_NESTED 0xc000000000000000 /* Nested rmap array */ 243 #define KVMPPC_RMAP_HPT 0x0100000000000000 /* HPT guest */ 244 245 /* 246 * rmap usage definition for a hash page table (hpt) guest: 247 * 0x0000080000000000 Lock bit 248 * 0x0000018000000000 RC bits 249 * 0x0000000100000000 Present bit 250 * 0x00000000ffffffff HPT index bits 251 * The bottom 32 bits are the index in the guest HPT of a HPTE that points to 252 * the page. 253 */ 254 #define KVMPPC_RMAP_LOCK_BIT 43 255 #define KVMPPC_RMAP_RC_SHIFT 32 256 #define KVMPPC_RMAP_REFERENCED (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT) 257 #define KVMPPC_RMAP_PRESENT 0x100000000ul 258 #define KVMPPC_RMAP_INDEX 0xfffffffful 259 260 struct kvm_arch_memory_slot { 261 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 262 unsigned long *rmap; 263 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */ 264 }; 265 266 struct kvm_hpt_info { 267 /* Host virtual (linear mapping) address of guest HPT */ 268 unsigned long virt; 269 /* Array of reverse mapping entries for each guest HPTE */ 270 struct revmap_entry *rev; 271 /* Guest HPT size is 2**(order) bytes */ 272 u32 order; 273 /* 1 if HPT allocated with CMA, 0 otherwise */ 274 int cma; 275 }; 276 277 struct kvm_resize_hpt; 278 279 /* Flag values for kvm_arch.secure_guest */ 280 #define KVMPPC_SECURE_INIT_START 0x1 /* H_SVM_INIT_START has been called */ 281 #define KVMPPC_SECURE_INIT_DONE 0x2 /* H_SVM_INIT_DONE completed */ 282 #define KVMPPC_SECURE_INIT_ABORT 0x4 /* H_SVM_INIT_ABORT issued */ 283 284 struct kvm_arch { 285 unsigned int lpid; 286 unsigned int smt_mode; /* # vcpus per virtual core */ 287 unsigned int emul_smt_mode; /* emualted SMT mode, on P9 */ 288 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 289 unsigned int tlb_sets; 290 struct kvm_hpt_info hpt; 291 atomic64_t mmio_update; 292 unsigned int host_lpid; 293 unsigned long host_lpcr; 294 unsigned long sdr1; 295 unsigned long host_sdr1; 296 unsigned long lpcr; 297 unsigned long vrma_slb_v; 298 int mmu_ready; 299 atomic_t vcpus_running; 300 u32 online_vcores; 301 atomic_t hpte_mod_interest; 302 cpumask_t need_tlb_flush; 303 cpumask_t cpu_in_guest; 304 u8 radix; 305 u8 fwnmi_enabled; 306 u8 secure_guest; 307 u8 svm_enabled; 308 bool threads_indep; 309 bool nested_enable; 310 pgd_t *pgtable; 311 u64 process_table; 312 struct dentry *debugfs_dir; 313 struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */ 314 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */ 315 #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE 316 struct mutex hpt_mutex; 317 #endif 318 #ifdef CONFIG_PPC_BOOK3S_64 319 struct list_head spapr_tce_tables; 320 struct list_head rtas_tokens; 321 struct mutex rtas_token_lock; 322 DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1); 323 #endif 324 #ifdef CONFIG_KVM_MPIC 325 struct openpic *mpic; 326 #endif 327 #ifdef CONFIG_KVM_XICS 328 struct kvmppc_xics *xics; 329 struct kvmppc_xics *xics_device; 330 struct kvmppc_xive *xive; /* Current XIVE device in use */ 331 struct { 332 struct kvmppc_xive *native; 333 struct kvmppc_xive *xics_on_xive; 334 } xive_devices; 335 struct kvmppc_passthru_irqmap *pimap; 336 #endif 337 struct kvmppc_ops *kvm_ops; 338 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 339 struct mutex uvmem_lock; 340 struct list_head uvmem_pfns; 341 struct mutex mmu_setup_lock; /* nests inside vcpu mutexes */ 342 u64 l1_ptcr; 343 int max_nested_lpid; 344 struct kvm_nested_guest *nested_guests[KVM_MAX_NESTED_GUESTS]; 345 /* This array can grow quite large, keep it at the end */ 346 struct kvmppc_vcore *vcores[KVM_MAX_VCORES]; 347 #endif 348 }; 349 350 #define VCORE_ENTRY_MAP(vc) ((vc)->entry_exit_map & 0xff) 351 #define VCORE_EXIT_MAP(vc) ((vc)->entry_exit_map >> 8) 352 #define VCORE_IS_EXITING(vc) (VCORE_EXIT_MAP(vc) != 0) 353 354 /* This bit is used when a vcore exit is triggered from outside the vcore */ 355 #define VCORE_EXIT_REQ 0x10000 356 357 /* 358 * Values for vcore_state. 359 * Note that these are arranged such that lower values 360 * (< VCORE_SLEEPING) don't require stolen time accounting 361 * on load/unload, and higher values do. 362 */ 363 #define VCORE_INACTIVE 0 364 #define VCORE_PREEMPT 1 365 #define VCORE_PIGGYBACK 2 366 #define VCORE_SLEEPING 3 367 #define VCORE_RUNNING 4 368 #define VCORE_EXITING 5 369 #define VCORE_POLLING 6 370 371 /* 372 * Struct used to manage memory for a virtual processor area 373 * registered by a PAPR guest. There are three types of area 374 * that a guest can register. 375 */ 376 struct kvmppc_vpa { 377 unsigned long gpa; /* Current guest phys addr */ 378 void *pinned_addr; /* Address in kernel linear mapping */ 379 void *pinned_end; /* End of region */ 380 unsigned long next_gpa; /* Guest phys addr for update */ 381 unsigned long len; /* Number of bytes required */ 382 u8 update_pending; /* 1 => update pinned_addr from next_gpa */ 383 bool dirty; /* true => area has been modified by kernel */ 384 }; 385 386 struct kvmppc_pte { 387 ulong eaddr; 388 u64 vpage; 389 ulong raddr; 390 bool may_read : 1; 391 bool may_write : 1; 392 bool may_execute : 1; 393 unsigned long wimg; 394 unsigned long rc; 395 u8 page_size; /* MMU_PAGE_xxx */ 396 u8 page_shift; 397 }; 398 399 struct kvmppc_mmu { 400 /* book3s_64 only */ 401 void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs); 402 u64 (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr); 403 u64 (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr); 404 int (*slbfee)(struct kvm_vcpu *vcpu, gva_t eaddr, ulong *ret_slb); 405 void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr); 406 void (*slbia)(struct kvm_vcpu *vcpu); 407 /* book3s */ 408 void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value); 409 u32 (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum); 410 int (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr, 411 struct kvmppc_pte *pte, bool data, bool iswrite); 412 void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large); 413 int (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid); 414 u64 (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data); 415 bool (*is_dcbz32)(struct kvm_vcpu *vcpu); 416 }; 417 418 struct kvmppc_slb { 419 u64 esid; 420 u64 vsid; 421 u64 orige; 422 u64 origv; 423 bool valid : 1; 424 bool Ks : 1; 425 bool Kp : 1; 426 bool nx : 1; 427 bool large : 1; /* PTEs are 16MB */ 428 bool tb : 1; /* 1TB segment */ 429 bool class : 1; 430 u8 base_page_size; /* MMU_PAGE_xxx */ 431 }; 432 433 /* Struct used to accumulate timing information in HV real mode code */ 434 struct kvmhv_tb_accumulator { 435 u64 seqcount; /* used to synchronize access, also count * 2 */ 436 u64 tb_total; /* total time in timebase ticks */ 437 u64 tb_min; /* min time */ 438 u64 tb_max; /* max time */ 439 }; 440 441 #ifdef CONFIG_PPC_BOOK3S_64 442 struct kvmppc_irq_map { 443 u32 r_hwirq; 444 u32 v_hwirq; 445 struct irq_desc *desc; 446 }; 447 448 #define KVMPPC_PIRQ_MAPPED 1024 449 struct kvmppc_passthru_irqmap { 450 int n_mapped; 451 struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED]; 452 }; 453 #endif 454 455 # ifdef CONFIG_PPC_FSL_BOOK3E 456 #define KVMPPC_BOOKE_IAC_NUM 2 457 #define KVMPPC_BOOKE_DAC_NUM 2 458 # else 459 #define KVMPPC_BOOKE_IAC_NUM 4 460 #define KVMPPC_BOOKE_DAC_NUM 2 461 # endif 462 #define KVMPPC_BOOKE_MAX_IAC 4 463 #define KVMPPC_BOOKE_MAX_DAC 2 464 465 /* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */ 466 #define KVMPPC_EPR_NONE 0 /* EPR not supported */ 467 #define KVMPPC_EPR_USER 1 /* exit to userspace to fill EPR */ 468 #define KVMPPC_EPR_KERNEL 2 /* in-kernel irqchip */ 469 470 #define KVMPPC_IRQ_DEFAULT 0 471 #define KVMPPC_IRQ_MPIC 1 472 #define KVMPPC_IRQ_XICS 2 /* Includes a XIVE option */ 473 #define KVMPPC_IRQ_XIVE 3 /* XIVE native exploitation mode */ 474 475 #define MMIO_HPTE_CACHE_SIZE 4 476 477 struct mmio_hpte_cache_entry { 478 unsigned long hpte_v; 479 unsigned long hpte_r; 480 unsigned long rpte; 481 unsigned long pte_index; 482 unsigned long eaddr; 483 unsigned long slb_v; 484 long mmio_update; 485 unsigned int slb_base_pshift; 486 }; 487 488 struct mmio_hpte_cache { 489 struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE]; 490 unsigned int index; 491 }; 492 493 #define KVMPPC_VSX_COPY_NONE 0 494 #define KVMPPC_VSX_COPY_WORD 1 495 #define KVMPPC_VSX_COPY_DWORD 2 496 #define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP 3 497 #define KVMPPC_VSX_COPY_WORD_LOAD_DUMP 4 498 499 #define KVMPPC_VMX_COPY_BYTE 8 500 #define KVMPPC_VMX_COPY_HWORD 9 501 #define KVMPPC_VMX_COPY_WORD 10 502 #define KVMPPC_VMX_COPY_DWORD 11 503 504 struct openpic; 505 506 /* W0 and W1 of a XIVE thread management context */ 507 union xive_tma_w01 { 508 struct { 509 u8 nsr; 510 u8 cppr; 511 u8 ipb; 512 u8 lsmfb; 513 u8 ack; 514 u8 inc; 515 u8 age; 516 u8 pipr; 517 }; 518 __be64 w01; 519 }; 520 521 struct kvm_vcpu_arch { 522 ulong host_stack; 523 u32 host_pid; 524 #ifdef CONFIG_PPC_BOOK3S 525 struct kvmppc_slb slb[64]; 526 int slb_max; /* 1 + index of last valid entry in slb[] */ 527 int slb_nr; /* total number of entries in SLB */ 528 struct kvmppc_mmu mmu; 529 struct kvmppc_vcpu_book3s *book3s; 530 #endif 531 #ifdef CONFIG_PPC_BOOK3S_32 532 struct kvmppc_book3s_shadow_vcpu *shadow_vcpu; 533 #endif 534 535 struct pt_regs regs; 536 537 struct thread_fp_state fp; 538 539 #ifdef CONFIG_SPE 540 ulong evr[32]; 541 ulong spefscr; 542 ulong host_spefscr; 543 u64 acc; 544 #endif 545 #ifdef CONFIG_ALTIVEC 546 struct thread_vr_state vr; 547 #endif 548 549 #ifdef CONFIG_KVM_BOOKE_HV 550 u32 host_mas4; 551 u32 host_mas6; 552 u32 shadow_epcr; 553 u32 shadow_msrp; 554 u32 eplc; 555 u32 epsc; 556 u32 oldpir; 557 #endif 558 559 #if defined(CONFIG_BOOKE) 560 #if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT) 561 u32 epcr; 562 #endif 563 #endif 564 565 #ifdef CONFIG_PPC_BOOK3S 566 /* For Gekko paired singles */ 567 u32 qpr[32]; 568 #endif 569 570 #ifdef CONFIG_PPC_BOOK3S 571 ulong tar; 572 #endif 573 574 #ifdef CONFIG_PPC_BOOK3S 575 ulong hflags; 576 ulong guest_owned_ext; 577 ulong purr; 578 ulong spurr; 579 ulong ic; 580 ulong dscr; 581 ulong amr; 582 ulong uamor; 583 ulong iamr; 584 u32 ctrl; 585 u32 dabrx; 586 ulong dabr; 587 ulong dawr; 588 ulong dawrx; 589 ulong ciabr; 590 ulong cfar; 591 ulong ppr; 592 u32 pspb; 593 ulong fscr; 594 ulong shadow_fscr; 595 ulong ebbhr; 596 ulong ebbrr; 597 ulong bescr; 598 ulong csigr; 599 ulong tacr; 600 ulong tcscr; 601 ulong acop; 602 ulong wort; 603 ulong tid; 604 ulong psscr; 605 ulong hfscr; 606 ulong shadow_srr1; 607 #endif 608 u32 vrsave; /* also USPRG0 */ 609 u32 mmucr; 610 /* shadow_msr is unused for BookE HV */ 611 ulong shadow_msr; 612 ulong csrr0; 613 ulong csrr1; 614 ulong dsrr0; 615 ulong dsrr1; 616 ulong mcsrr0; 617 ulong mcsrr1; 618 ulong mcsr; 619 ulong dec; 620 #ifdef CONFIG_BOOKE 621 u32 decar; 622 #endif 623 /* Time base value when we entered the guest */ 624 u64 entry_tb; 625 u64 entry_vtb; 626 u64 entry_ic; 627 u32 tcr; 628 ulong tsr; /* we need to perform set/clr_bits() which requires ulong */ 629 u32 ivor[64]; 630 ulong ivpr; 631 u32 pvr; 632 633 u32 shadow_pid; 634 u32 shadow_pid1; 635 u32 pid; 636 u32 swap_pid; 637 638 u32 ccr0; 639 u32 ccr1; 640 u32 dbsr; 641 642 u64 mmcr[4]; /* MMCR0, MMCR1, MMCR2, MMCR3 */ 643 u64 mmcra; 644 u64 mmcrs; 645 u32 pmc[8]; 646 u32 spmc[2]; 647 u64 siar; 648 u64 sdar; 649 u64 sier[3]; 650 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM 651 u64 tfhar; 652 u64 texasr; 653 u64 tfiar; 654 u64 orig_texasr; 655 656 u32 cr_tm; 657 u64 xer_tm; 658 u64 lr_tm; 659 u64 ctr_tm; 660 u64 amr_tm; 661 u64 ppr_tm; 662 u64 dscr_tm; 663 u64 tar_tm; 664 665 ulong gpr_tm[32]; 666 667 struct thread_fp_state fp_tm; 668 669 struct thread_vr_state vr_tm; 670 u32 vrsave_tm; /* also USPRG0 */ 671 #endif 672 673 #ifdef CONFIG_KVM_EXIT_TIMING 674 struct mutex exit_timing_lock; 675 struct kvmppc_exit_timing timing_exit; 676 struct kvmppc_exit_timing timing_last_enter; 677 u32 last_exit_type; 678 u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES]; 679 u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 680 u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 681 u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 682 u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 683 u64 timing_last_exit; 684 struct dentry *debugfs_exit_timing; 685 #endif 686 687 #ifdef CONFIG_PPC_BOOK3S 688 ulong fault_dar; 689 u32 fault_dsisr; 690 unsigned long intr_msr; 691 ulong fault_gpa; /* guest real address of page fault (POWER9) */ 692 #endif 693 694 #ifdef CONFIG_BOOKE 695 ulong fault_dear; 696 ulong fault_esr; 697 ulong queued_dear; 698 ulong queued_esr; 699 spinlock_t wdt_lock; 700 struct timer_list wdt_timer; 701 u32 tlbcfg[4]; 702 u32 tlbps[4]; 703 u32 mmucfg; 704 u32 eptcfg; 705 u32 epr; 706 u64 sprg9; 707 u32 pwrmgtcr0; 708 u32 crit_save; 709 /* guest debug registers*/ 710 struct debug_reg dbg_reg; 711 #endif 712 gpa_t paddr_accessed; 713 gva_t vaddr_accessed; 714 pgd_t *pgdir; 715 716 u16 io_gpr; /* GPR used as IO source/target */ 717 u8 mmio_host_swabbed; 718 u8 mmio_sign_extend; 719 /* conversion between single and double precision */ 720 u8 mmio_sp64_extend; 721 /* 722 * Number of simulations for vsx. 723 * If we use 2*8bytes to simulate 1*16bytes, 724 * then the number should be 2 and 725 * mmio_copy_type=KVMPPC_VSX_COPY_DWORD. 726 * If we use 4*4bytes to simulate 1*16bytes, 727 * the number should be 4 and 728 * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD. 729 */ 730 u8 mmio_vsx_copy_nums; 731 u8 mmio_vsx_offset; 732 u8 mmio_vmx_copy_nums; 733 u8 mmio_vmx_offset; 734 u8 mmio_copy_type; 735 u8 osi_needed; 736 u8 osi_enabled; 737 u8 papr_enabled; 738 u8 watchdog_enabled; 739 u8 sane; 740 u8 cpu_type; 741 u8 hcall_needed; 742 u8 epr_flags; /* KVMPPC_EPR_xxx */ 743 u8 epr_needed; 744 u8 external_oneshot; /* clear external irq after delivery */ 745 746 u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */ 747 748 struct hrtimer dec_timer; 749 u64 dec_jiffies; 750 u64 dec_expires; 751 unsigned long pending_exceptions; 752 u8 ceded; 753 u8 prodded; 754 u8 doorbell_request; 755 u8 irq_pending; /* Used by XIVE to signal pending guest irqs */ 756 u32 last_inst; 757 758 struct rcuwait *waitp; 759 struct kvmppc_vcore *vcore; 760 int ret; 761 int trap; 762 int state; 763 int ptid; 764 int thread_cpu; 765 int prev_cpu; 766 bool timer_running; 767 wait_queue_head_t cpu_run; 768 struct machine_check_event mce_evt; /* Valid if trap == 0x200 */ 769 770 struct kvm_vcpu_arch_shared *shared; 771 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE) 772 bool shared_big_endian; 773 #endif 774 unsigned long magic_page_pa; /* phys addr to map the magic page to */ 775 unsigned long magic_page_ea; /* effect. addr to map the magic page to */ 776 bool disable_kernel_nx; 777 778 int irq_type; /* one of KVM_IRQ_* */ 779 int irq_cpu_id; 780 struct openpic *mpic; /* KVM_IRQ_MPIC */ 781 #ifdef CONFIG_KVM_XICS 782 struct kvmppc_icp *icp; /* XICS presentation controller */ 783 struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */ 784 __be32 xive_cam_word; /* Cooked W2 in proper endian with valid bit */ 785 u8 xive_pushed; /* Is the VP pushed on the physical CPU ? */ 786 u8 xive_esc_on; /* Is the escalation irq enabled ? */ 787 union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */ 788 u64 xive_esc_raddr; /* Escalation interrupt ESB real addr */ 789 u64 xive_esc_vaddr; /* Escalation interrupt ESB virt addr */ 790 #endif 791 792 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 793 struct kvm_vcpu_arch_shared shregs; 794 795 struct mmio_hpte_cache mmio_cache; 796 unsigned long pgfault_addr; 797 long pgfault_index; 798 unsigned long pgfault_hpte[2]; 799 struct mmio_hpte_cache_entry *pgfault_cache; 800 801 struct task_struct *run_task; 802 803 spinlock_t vpa_update_lock; 804 struct kvmppc_vpa vpa; 805 struct kvmppc_vpa dtl; 806 struct dtl_entry *dtl_ptr; 807 unsigned long dtl_index; 808 u64 stolen_logged; 809 struct kvmppc_vpa slb_shadow; 810 811 spinlock_t tbacct_lock; 812 u64 busy_stolen; 813 u64 busy_preempt; 814 815 u32 emul_inst; 816 817 u32 online; 818 819 /* For support of nested guests */ 820 struct kvm_nested_guest *nested; 821 u32 nested_vcpu_id; 822 gpa_t nested_io_gpr; 823 #endif 824 825 #ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING 826 struct kvmhv_tb_accumulator *cur_activity; /* What we're timing */ 827 u64 cur_tb_start; /* when it started */ 828 struct kvmhv_tb_accumulator rm_entry; /* real-mode entry code */ 829 struct kvmhv_tb_accumulator rm_intr; /* real-mode intr handling */ 830 struct kvmhv_tb_accumulator rm_exit; /* real-mode exit code */ 831 struct kvmhv_tb_accumulator guest_time; /* guest execution */ 832 struct kvmhv_tb_accumulator cede_time; /* time napping inside guest */ 833 834 struct dentry *debugfs_dir; 835 #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */ 836 }; 837 838 #define VCPU_FPR(vcpu, i) (vcpu)->arch.fp.fpr[i][TS_FPROFFSET] 839 #define VCPU_VSX_FPR(vcpu, i, j) ((vcpu)->arch.fp.fpr[i][j]) 840 #define VCPU_VSX_VR(vcpu, i) ((vcpu)->arch.vr.vr[i]) 841 842 /* Values for vcpu->arch.state */ 843 #define KVMPPC_VCPU_NOTREADY 0 844 #define KVMPPC_VCPU_RUNNABLE 1 845 #define KVMPPC_VCPU_BUSY_IN_HOST 2 846 847 /* Values for vcpu->arch.io_gpr */ 848 #define KVM_MMIO_REG_MASK 0x003f 849 #define KVM_MMIO_REG_EXT_MASK 0xffc0 850 #define KVM_MMIO_REG_GPR 0x0000 851 #define KVM_MMIO_REG_FPR 0x0040 852 #define KVM_MMIO_REG_QPR 0x0080 853 #define KVM_MMIO_REG_FQPR 0x00c0 854 #define KVM_MMIO_REG_VSX 0x0100 855 #define KVM_MMIO_REG_VMX 0x0180 856 #define KVM_MMIO_REG_NESTED_GPR 0xffc0 857 858 859 #define __KVM_HAVE_ARCH_WQP 860 #define __KVM_HAVE_CREATE_DEVICE 861 862 static inline void kvm_arch_hardware_disable(void) {} 863 static inline void kvm_arch_hardware_unsetup(void) {} 864 static inline void kvm_arch_sync_events(struct kvm *kvm) {} 865 static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {} 866 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {} 867 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {} 868 static inline void kvm_arch_exit(void) {} 869 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {} 870 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {} 871 static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {} 872 873 #endif /* __POWERPC_KVM_HOST_H__ */ 874