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 KVM_ARCH_WANT_MMU_NOTIFIER 67 68 #define HPTEG_CACHE_NUM (1 << 15) 69 #define HPTEG_HASH_BITS_PTE 13 70 #define HPTEG_HASH_BITS_PTE_LONG 12 71 #define HPTEG_HASH_BITS_VPTE 13 72 #define HPTEG_HASH_BITS_VPTE_LONG 5 73 #define HPTEG_HASH_BITS_VPTE_64K 11 74 #define HPTEG_HASH_NUM_PTE (1 << HPTEG_HASH_BITS_PTE) 75 #define HPTEG_HASH_NUM_PTE_LONG (1 << HPTEG_HASH_BITS_PTE_LONG) 76 #define HPTEG_HASH_NUM_VPTE (1 << HPTEG_HASH_BITS_VPTE) 77 #define HPTEG_HASH_NUM_VPTE_LONG (1 << HPTEG_HASH_BITS_VPTE_LONG) 78 #define HPTEG_HASH_NUM_VPTE_64K (1 << HPTEG_HASH_BITS_VPTE_64K) 79 80 /* Physical Address Mask - allowed range of real mode RAM access */ 81 #define KVM_PAM 0x0fffffffffffffffULL 82 83 struct lppaca; 84 struct slb_shadow; 85 struct dtl_entry; 86 87 struct kvmppc_vcpu_book3s; 88 struct kvmppc_book3s_shadow_vcpu; 89 struct kvm_nested_guest; 90 91 struct kvm_vm_stat { 92 struct kvm_vm_stat_generic generic; 93 u64 num_2M_pages; 94 u64 num_1G_pages; 95 }; 96 97 struct kvm_vcpu_stat { 98 struct kvm_vcpu_stat_generic generic; 99 u64 sum_exits; 100 u64 mmio_exits; 101 u64 signal_exits; 102 u64 light_exits; 103 /* Account for special types of light exits: */ 104 u64 itlb_real_miss_exits; 105 u64 itlb_virt_miss_exits; 106 u64 dtlb_real_miss_exits; 107 u64 dtlb_virt_miss_exits; 108 u64 syscall_exits; 109 u64 isi_exits; 110 u64 dsi_exits; 111 u64 emulated_inst_exits; 112 u64 dec_exits; 113 u64 ext_intr_exits; 114 u64 halt_successful_wait; 115 u64 dbell_exits; 116 u64 gdbell_exits; 117 u64 ld; 118 u64 st; 119 #ifdef CONFIG_PPC_BOOK3S 120 u64 pf_storage; 121 u64 pf_instruc; 122 u64 sp_storage; 123 u64 sp_instruc; 124 u64 queue_intr; 125 u64 ld_slow; 126 u64 st_slow; 127 #endif 128 u64 pthru_all; 129 u64 pthru_host; 130 u64 pthru_bad_aff; 131 }; 132 133 enum kvm_exit_types { 134 MMIO_EXITS, 135 SIGNAL_EXITS, 136 ITLB_REAL_MISS_EXITS, 137 ITLB_VIRT_MISS_EXITS, 138 DTLB_REAL_MISS_EXITS, 139 DTLB_VIRT_MISS_EXITS, 140 SYSCALL_EXITS, 141 ISI_EXITS, 142 DSI_EXITS, 143 EMULATED_INST_EXITS, 144 EMULATED_MTMSRWE_EXITS, 145 EMULATED_WRTEE_EXITS, 146 EMULATED_MTSPR_EXITS, 147 EMULATED_MFSPR_EXITS, 148 EMULATED_MTMSR_EXITS, 149 EMULATED_MFMSR_EXITS, 150 EMULATED_TLBSX_EXITS, 151 EMULATED_TLBWE_EXITS, 152 EMULATED_RFI_EXITS, 153 EMULATED_RFCI_EXITS, 154 EMULATED_RFDI_EXITS, 155 DEC_EXITS, 156 EXT_INTR_EXITS, 157 HALT_WAKEUP, 158 USR_PR_INST, 159 FP_UNAVAIL, 160 DEBUG_EXITS, 161 TIMEINGUEST, 162 DBELL_EXITS, 163 GDBELL_EXITS, 164 __NUMBER_OF_KVM_EXIT_TYPES 165 }; 166 167 /* allow access to big endian 32bit upper/lower parts and 64bit var */ 168 struct kvmppc_exit_timing { 169 union { 170 u64 tv64; 171 struct { 172 u32 tbu, tbl; 173 } tv32; 174 }; 175 }; 176 177 struct kvmppc_pginfo { 178 unsigned long pfn; 179 atomic_t refcnt; 180 }; 181 182 struct kvmppc_spapr_tce_iommu_table { 183 struct rcu_head rcu; 184 struct list_head next; 185 struct iommu_table *tbl; 186 struct kref kref; 187 }; 188 189 #define TCES_PER_PAGE (PAGE_SIZE / sizeof(u64)) 190 191 struct kvmppc_spapr_tce_table { 192 struct list_head list; 193 struct kvm *kvm; 194 u64 liobn; 195 struct rcu_head rcu; 196 u32 page_shift; 197 u64 offset; /* in pages */ 198 u64 size; /* window size in pages */ 199 struct list_head iommu_tables; 200 struct mutex alloc_lock; 201 struct page *pages[]; 202 }; 203 204 /* XICS components, defined in book3s_xics.c */ 205 struct kvmppc_xics; 206 struct kvmppc_icp; 207 extern struct kvm_device_ops kvm_xics_ops; 208 209 /* XIVE components, defined in book3s_xive.c */ 210 struct kvmppc_xive; 211 struct kvmppc_xive_vcpu; 212 extern struct kvm_device_ops kvm_xive_ops; 213 extern struct kvm_device_ops kvm_xive_native_ops; 214 215 struct kvmppc_passthru_irqmap; 216 217 /* 218 * The reverse mapping array has one entry for each HPTE, 219 * which stores the guest's view of the second word of the HPTE 220 * (including the guest physical address of the mapping), 221 * plus forward and backward pointers in a doubly-linked ring 222 * of HPTEs that map the same host page. The pointers in this 223 * ring are 32-bit HPTE indexes, to save space. 224 */ 225 struct revmap_entry { 226 unsigned long guest_rpte; 227 unsigned int forw, back; 228 }; 229 230 /* 231 * The rmap array of size number of guest pages is allocated for each memslot. 232 * This array is used to store usage specific information about the guest page. 233 * Below are the encodings of the various possible usage types. 234 */ 235 /* Free bits which can be used to define a new usage */ 236 #define KVMPPC_RMAP_TYPE_MASK 0xff00000000000000 237 #define KVMPPC_RMAP_NESTED 0xc000000000000000 /* Nested rmap array */ 238 #define KVMPPC_RMAP_HPT 0x0100000000000000 /* HPT guest */ 239 240 /* 241 * rmap usage definition for a hash page table (hpt) guest: 242 * 0x0000080000000000 Lock bit 243 * 0x0000018000000000 RC bits 244 * 0x0000000100000000 Present bit 245 * 0x00000000ffffffff HPT index bits 246 * The bottom 32 bits are the index in the guest HPT of a HPTE that points to 247 * the page. 248 */ 249 #define KVMPPC_RMAP_LOCK_BIT 43 250 #define KVMPPC_RMAP_RC_SHIFT 32 251 #define KVMPPC_RMAP_REFERENCED (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT) 252 #define KVMPPC_RMAP_PRESENT 0x100000000ul 253 #define KVMPPC_RMAP_INDEX 0xfffffffful 254 255 struct kvm_arch_memory_slot { 256 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 257 unsigned long *rmap; 258 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */ 259 }; 260 261 struct kvm_hpt_info { 262 /* Host virtual (linear mapping) address of guest HPT */ 263 unsigned long virt; 264 /* Array of reverse mapping entries for each guest HPTE */ 265 struct revmap_entry *rev; 266 /* Guest HPT size is 2**(order) bytes */ 267 u32 order; 268 /* 1 if HPT allocated with CMA, 0 otherwise */ 269 int cma; 270 }; 271 272 struct kvm_resize_hpt; 273 274 /* Flag values for kvm_arch.secure_guest */ 275 #define KVMPPC_SECURE_INIT_START 0x1 /* H_SVM_INIT_START has been called */ 276 #define KVMPPC_SECURE_INIT_DONE 0x2 /* H_SVM_INIT_DONE completed */ 277 #define KVMPPC_SECURE_INIT_ABORT 0x4 /* H_SVM_INIT_ABORT issued */ 278 279 struct kvm_arch { 280 u64 lpid; 281 unsigned int smt_mode; /* # vcpus per virtual core */ 282 unsigned int emul_smt_mode; /* emualted SMT mode, on P9 */ 283 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 284 unsigned int tlb_sets; 285 struct kvm_hpt_info hpt; 286 atomic64_t mmio_update; 287 unsigned int host_lpid; 288 unsigned long host_lpcr; 289 unsigned long sdr1; 290 unsigned long host_sdr1; 291 unsigned long lpcr; 292 unsigned long vrma_slb_v; 293 int mmu_ready; 294 atomic_t vcpus_running; 295 u32 online_vcores; 296 atomic_t hpte_mod_interest; 297 cpumask_t need_tlb_flush; 298 u8 radix; 299 u8 fwnmi_enabled; 300 u8 secure_guest; 301 u8 svm_enabled; 302 bool nested_enable; 303 bool dawr1_enabled; 304 pgd_t *pgtable; 305 u64 process_table; 306 struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */ 307 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */ 308 #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE 309 struct mutex hpt_mutex; 310 #endif 311 #ifdef CONFIG_PPC_BOOK3S_64 312 struct list_head spapr_tce_tables; 313 struct list_head rtas_tokens; 314 struct mutex rtas_token_lock; 315 DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1); 316 #endif 317 #ifdef CONFIG_KVM_MPIC 318 struct openpic *mpic; 319 #endif 320 #ifdef CONFIG_KVM_XICS 321 struct kvmppc_xics *xics; 322 struct kvmppc_xics *xics_device; 323 struct kvmppc_xive *xive; /* Current XIVE device in use */ 324 struct { 325 struct kvmppc_xive *native; 326 struct kvmppc_xive *xics_on_xive; 327 } xive_devices; 328 struct kvmppc_passthru_irqmap *pimap; 329 #endif 330 struct kvmppc_ops *kvm_ops; 331 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 332 struct mutex uvmem_lock; 333 struct list_head uvmem_pfns; 334 struct mutex mmu_setup_lock; /* nests inside vcpu mutexes */ 335 u64 l1_ptcr; 336 struct idr kvm_nested_guest_idr; 337 /* This array can grow quite large, keep it at the end */ 338 struct kvmppc_vcore *vcores[KVM_MAX_VCORES]; 339 #endif 340 }; 341 342 #define VCORE_ENTRY_MAP(vc) ((vc)->entry_exit_map & 0xff) 343 #define VCORE_EXIT_MAP(vc) ((vc)->entry_exit_map >> 8) 344 #define VCORE_IS_EXITING(vc) (VCORE_EXIT_MAP(vc) != 0) 345 346 /* This bit is used when a vcore exit is triggered from outside the vcore */ 347 #define VCORE_EXIT_REQ 0x10000 348 349 /* 350 * Values for vcore_state. 351 * Note that these are arranged such that lower values 352 * (< VCORE_SLEEPING) don't require stolen time accounting 353 * on load/unload, and higher values do. 354 */ 355 #define VCORE_INACTIVE 0 356 #define VCORE_PREEMPT 1 357 #define VCORE_PIGGYBACK 2 358 #define VCORE_SLEEPING 3 359 #define VCORE_RUNNING 4 360 #define VCORE_EXITING 5 361 #define VCORE_POLLING 6 362 363 /* 364 * Struct used to manage memory for a virtual processor area 365 * registered by a PAPR guest. There are three types of area 366 * that a guest can register. 367 */ 368 struct kvmppc_vpa { 369 unsigned long gpa; /* Current guest phys addr */ 370 void *pinned_addr; /* Address in kernel linear mapping */ 371 void *pinned_end; /* End of region */ 372 unsigned long next_gpa; /* Guest phys addr for update */ 373 unsigned long len; /* Number of bytes required */ 374 u8 update_pending; /* 1 => update pinned_addr from next_gpa */ 375 bool dirty; /* true => area has been modified by kernel */ 376 }; 377 378 struct kvmppc_pte { 379 ulong eaddr; 380 u64 vpage; 381 ulong raddr; 382 bool may_read : 1; 383 bool may_write : 1; 384 bool may_execute : 1; 385 unsigned long wimg; 386 unsigned long rc; 387 u8 page_size; /* MMU_PAGE_xxx */ 388 u8 page_shift; 389 }; 390 391 struct kvmppc_mmu { 392 /* book3s_64 only */ 393 void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs); 394 u64 (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr); 395 u64 (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr); 396 int (*slbfee)(struct kvm_vcpu *vcpu, gva_t eaddr, ulong *ret_slb); 397 void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr); 398 void (*slbia)(struct kvm_vcpu *vcpu); 399 /* book3s */ 400 void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value); 401 u32 (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum); 402 int (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr, 403 struct kvmppc_pte *pte, bool data, bool iswrite); 404 void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large); 405 int (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid); 406 u64 (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data); 407 bool (*is_dcbz32)(struct kvm_vcpu *vcpu); 408 }; 409 410 struct kvmppc_slb { 411 u64 esid; 412 u64 vsid; 413 u64 orige; 414 u64 origv; 415 bool valid : 1; 416 bool Ks : 1; 417 bool Kp : 1; 418 bool nx : 1; 419 bool large : 1; /* PTEs are 16MB */ 420 bool tb : 1; /* 1TB segment */ 421 bool class : 1; 422 u8 base_page_size; /* MMU_PAGE_xxx */ 423 }; 424 425 /* Struct used to accumulate timing information in HV real mode code */ 426 struct kvmhv_tb_accumulator { 427 u64 seqcount; /* used to synchronize access, also count * 2 */ 428 u64 tb_total; /* total time in timebase ticks */ 429 u64 tb_min; /* min time */ 430 u64 tb_max; /* max time */ 431 }; 432 433 #ifdef CONFIG_PPC_BOOK3S_64 434 struct kvmppc_irq_map { 435 u32 r_hwirq; 436 u32 v_hwirq; 437 struct irq_desc *desc; 438 }; 439 440 #define KVMPPC_PIRQ_MAPPED 1024 441 struct kvmppc_passthru_irqmap { 442 int n_mapped; 443 struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED]; 444 }; 445 #endif 446 447 # ifdef CONFIG_PPC_E500 448 #define KVMPPC_BOOKE_IAC_NUM 2 449 #define KVMPPC_BOOKE_DAC_NUM 2 450 # else 451 #define KVMPPC_BOOKE_IAC_NUM 4 452 #define KVMPPC_BOOKE_DAC_NUM 2 453 # endif 454 #define KVMPPC_BOOKE_MAX_IAC 4 455 #define KVMPPC_BOOKE_MAX_DAC 2 456 457 /* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */ 458 #define KVMPPC_EPR_NONE 0 /* EPR not supported */ 459 #define KVMPPC_EPR_USER 1 /* exit to userspace to fill EPR */ 460 #define KVMPPC_EPR_KERNEL 2 /* in-kernel irqchip */ 461 462 #define KVMPPC_IRQ_DEFAULT 0 463 #define KVMPPC_IRQ_MPIC 1 464 #define KVMPPC_IRQ_XICS 2 /* Includes a XIVE option */ 465 #define KVMPPC_IRQ_XIVE 3 /* XIVE native exploitation mode */ 466 467 #define MMIO_HPTE_CACHE_SIZE 4 468 469 struct mmio_hpte_cache_entry { 470 unsigned long hpte_v; 471 unsigned long hpte_r; 472 unsigned long rpte; 473 unsigned long pte_index; 474 unsigned long eaddr; 475 unsigned long slb_v; 476 long mmio_update; 477 unsigned int slb_base_pshift; 478 }; 479 480 struct mmio_hpte_cache { 481 struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE]; 482 unsigned int index; 483 }; 484 485 #define KVMPPC_VSX_COPY_NONE 0 486 #define KVMPPC_VSX_COPY_WORD 1 487 #define KVMPPC_VSX_COPY_DWORD 2 488 #define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP 3 489 #define KVMPPC_VSX_COPY_WORD_LOAD_DUMP 4 490 491 #define KVMPPC_VMX_COPY_BYTE 8 492 #define KVMPPC_VMX_COPY_HWORD 9 493 #define KVMPPC_VMX_COPY_WORD 10 494 #define KVMPPC_VMX_COPY_DWORD 11 495 496 struct openpic; 497 498 /* W0 and W1 of a XIVE thread management context */ 499 union xive_tma_w01 { 500 struct { 501 u8 nsr; 502 u8 cppr; 503 u8 ipb; 504 u8 lsmfb; 505 u8 ack; 506 u8 inc; 507 u8 age; 508 u8 pipr; 509 }; 510 __be64 w01; 511 }; 512 513 /* Nestedv2 H_GUEST_RUN_VCPU configuration */ 514 struct kvmhv_nestedv2_config { 515 struct kvmppc_gs_buff_info vcpu_run_output_cfg; 516 struct kvmppc_gs_buff_info vcpu_run_input_cfg; 517 u64 vcpu_run_output_size; 518 }; 519 520 /* Nestedv2 L1<->L0 communication state */ 521 struct kvmhv_nestedv2_io { 522 struct kvmhv_nestedv2_config cfg; 523 struct kvmppc_gs_buff *vcpu_run_output; 524 struct kvmppc_gs_buff *vcpu_run_input; 525 struct kvmppc_gs_msg *vcpu_message; 526 struct kvmppc_gs_msg *vcore_message; 527 struct kvmppc_gs_bitmap valids; 528 }; 529 530 struct kvm_vcpu_arch { 531 ulong host_stack; 532 u32 host_pid; 533 #ifdef CONFIG_PPC_BOOK3S 534 struct kvmppc_slb slb[64]; 535 int slb_max; /* 1 + index of last valid entry in slb[] */ 536 int slb_nr; /* total number of entries in SLB */ 537 struct kvmppc_mmu mmu; 538 struct kvmppc_vcpu_book3s *book3s; 539 #endif 540 #ifdef CONFIG_PPC_BOOK3S_32 541 struct kvmppc_book3s_shadow_vcpu *shadow_vcpu; 542 #endif 543 544 /* 545 * This is passed along to the HV via H_ENTER_NESTED. Align to 546 * prevent it crossing a real 4K page. 547 */ 548 struct pt_regs regs __aligned(512); 549 550 struct thread_fp_state fp; 551 552 #ifdef CONFIG_SPE 553 ulong evr[32]; 554 ulong spefscr; 555 ulong host_spefscr; 556 u64 acc; 557 #endif 558 #ifdef CONFIG_ALTIVEC 559 struct thread_vr_state vr; 560 #endif 561 562 #ifdef CONFIG_KVM_BOOKE_HV 563 u32 host_mas4; 564 u32 host_mas6; 565 u32 shadow_epcr; 566 u32 shadow_msrp; 567 u32 eplc; 568 u32 epsc; 569 u32 oldpir; 570 #endif 571 572 #if defined(CONFIG_BOOKE) 573 #if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT) 574 u32 epcr; 575 #endif 576 #endif 577 578 #ifdef CONFIG_PPC_BOOK3S 579 /* For Gekko paired singles */ 580 u32 qpr[32]; 581 #endif 582 583 #ifdef CONFIG_PPC_BOOK3S 584 ulong tar; 585 #endif 586 587 #ifdef CONFIG_PPC_BOOK3S 588 ulong hflags; 589 ulong guest_owned_ext; 590 ulong purr; 591 ulong spurr; 592 ulong ic; 593 ulong dscr; 594 ulong amr; 595 ulong uamor; 596 ulong iamr; 597 u32 ctrl; 598 u32 dabrx; 599 ulong dabr; 600 ulong dawr0; 601 ulong dawrx0; 602 ulong dawr1; 603 ulong dawrx1; 604 ulong ciabr; 605 ulong cfar; 606 ulong ppr; 607 u32 pspb; 608 u8 load_ebb; 609 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM 610 u8 load_tm; 611 #endif 612 ulong fscr; 613 ulong shadow_fscr; 614 ulong ebbhr; 615 ulong ebbrr; 616 ulong bescr; 617 ulong csigr; 618 ulong tacr; 619 ulong tcscr; 620 ulong acop; 621 ulong wort; 622 ulong tid; 623 ulong psscr; 624 ulong hfscr; 625 ulong shadow_srr1; 626 #endif 627 u32 vrsave; /* also USPRG0 */ 628 u32 mmucr; 629 /* shadow_msr is unused for BookE HV */ 630 ulong shadow_msr; 631 ulong csrr0; 632 ulong csrr1; 633 ulong dsrr0; 634 ulong dsrr1; 635 ulong mcsrr0; 636 ulong mcsrr1; 637 ulong mcsr; 638 ulong dec; 639 #ifdef CONFIG_BOOKE 640 u32 decar; 641 #endif 642 /* Time base value when we entered the guest */ 643 u64 entry_tb; 644 u64 entry_vtb; 645 u64 entry_ic; 646 u32 tcr; 647 ulong tsr; /* we need to perform set/clr_bits() which requires ulong */ 648 u32 ivor[64]; 649 ulong ivpr; 650 u32 pvr; 651 652 u32 shadow_pid; 653 u32 shadow_pid1; 654 u32 pid; 655 u32 swap_pid; 656 657 u32 ccr0; 658 u32 ccr1; 659 u32 dbsr; 660 661 u64 mmcr[4]; /* MMCR0, MMCR1, MMCR2, MMCR3 */ 662 u64 mmcra; 663 u64 mmcrs; 664 u32 pmc[8]; 665 u32 spmc[2]; 666 u64 siar; 667 u64 sdar; 668 u64 sier[3]; 669 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM 670 u64 tfhar; 671 u64 texasr; 672 u64 tfiar; 673 u64 orig_texasr; 674 675 u32 cr_tm; 676 u64 xer_tm; 677 u64 lr_tm; 678 u64 ctr_tm; 679 u64 amr_tm; 680 u64 ppr_tm; 681 u64 dscr_tm; 682 u64 tar_tm; 683 684 ulong gpr_tm[32]; 685 686 struct thread_fp_state fp_tm; 687 688 struct thread_vr_state vr_tm; 689 u32 vrsave_tm; /* also USPRG0 */ 690 #endif 691 692 #ifdef CONFIG_KVM_EXIT_TIMING 693 struct mutex exit_timing_lock; 694 struct kvmppc_exit_timing timing_exit; 695 struct kvmppc_exit_timing timing_last_enter; 696 u32 last_exit_type; 697 u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES]; 698 u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 699 u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 700 u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 701 u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 702 u64 timing_last_exit; 703 #endif 704 705 #ifdef CONFIG_PPC_BOOK3S 706 ulong fault_dar; 707 u32 fault_dsisr; 708 unsigned long intr_msr; 709 /* 710 * POWER9 and later: fault_gpa contains the guest real address of page 711 * fault for a radix guest, or segment descriptor (equivalent to result 712 * from slbmfev of SLB entry that translated the EA) for hash guests. 713 */ 714 ulong fault_gpa; 715 #endif 716 717 #ifdef CONFIG_BOOKE 718 ulong fault_dear; 719 ulong fault_esr; 720 ulong queued_dear; 721 ulong queued_esr; 722 spinlock_t wdt_lock; 723 struct timer_list wdt_timer; 724 u32 tlbcfg[4]; 725 u32 tlbps[4]; 726 u32 mmucfg; 727 u32 eptcfg; 728 u32 epr; 729 u64 sprg9; 730 u32 pwrmgtcr0; 731 u32 crit_save; 732 /* guest debug registers*/ 733 struct debug_reg dbg_reg; 734 #endif 735 gpa_t paddr_accessed; 736 gva_t vaddr_accessed; 737 pgd_t *pgdir; 738 739 u16 io_gpr; /* GPR used as IO source/target */ 740 u8 mmio_host_swabbed; 741 u8 mmio_sign_extend; 742 /* conversion between single and double precision */ 743 u8 mmio_sp64_extend; 744 /* 745 * Number of simulations for vsx. 746 * If we use 2*8bytes to simulate 1*16bytes, 747 * then the number should be 2 and 748 * mmio_copy_type=KVMPPC_VSX_COPY_DWORD. 749 * If we use 4*4bytes to simulate 1*16bytes, 750 * the number should be 4 and 751 * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD. 752 */ 753 u8 mmio_vsx_copy_nums; 754 u8 mmio_vsx_offset; 755 u8 mmio_vmx_copy_nums; 756 u8 mmio_vmx_offset; 757 u8 mmio_copy_type; 758 u8 osi_needed; 759 u8 osi_enabled; 760 u8 papr_enabled; 761 u8 watchdog_enabled; 762 u8 sane; 763 u8 cpu_type; 764 u8 hcall_needed; 765 u8 epr_flags; /* KVMPPC_EPR_xxx */ 766 u8 epr_needed; 767 u8 external_oneshot; /* clear external irq after delivery */ 768 769 u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */ 770 771 struct hrtimer dec_timer; 772 u64 dec_jiffies; 773 u64 dec_expires; /* Relative to guest timebase. */ 774 unsigned long pending_exceptions; 775 u8 ceded; 776 u8 prodded; 777 u8 doorbell_request; 778 u8 irq_pending; /* Used by XIVE to signal pending guest irqs */ 779 unsigned long last_inst; 780 781 struct rcuwait wait; 782 struct rcuwait *waitp; 783 struct kvmppc_vcore *vcore; 784 int ret; 785 int trap; 786 int state; 787 int ptid; 788 int thread_cpu; 789 int prev_cpu; 790 bool timer_running; 791 wait_queue_head_t cpu_run; 792 struct machine_check_event mce_evt; /* Valid if trap == 0x200 */ 793 794 struct kvm_vcpu_arch_shared *shared; 795 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE) 796 bool shared_big_endian; 797 #endif 798 unsigned long magic_page_pa; /* phys addr to map the magic page to */ 799 unsigned long magic_page_ea; /* effect. addr to map the magic page to */ 800 bool disable_kernel_nx; 801 802 int irq_type; /* one of KVM_IRQ_* */ 803 int irq_cpu_id; 804 struct openpic *mpic; /* KVM_IRQ_MPIC */ 805 #ifdef CONFIG_KVM_XICS 806 struct kvmppc_icp *icp; /* XICS presentation controller */ 807 struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */ 808 __be32 xive_cam_word; /* Cooked W2 in proper endian with valid bit */ 809 u8 xive_pushed; /* Is the VP pushed on the physical CPU ? */ 810 u8 xive_esc_on; /* Is the escalation irq enabled ? */ 811 union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */ 812 u64 xive_esc_raddr; /* Escalation interrupt ESB real addr */ 813 u64 xive_esc_vaddr; /* Escalation interrupt ESB virt addr */ 814 #endif 815 816 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 817 struct kvm_vcpu_arch_shared shregs; 818 819 struct mmio_hpte_cache mmio_cache; 820 unsigned long pgfault_addr; 821 long pgfault_index; 822 unsigned long pgfault_hpte[2]; 823 struct mmio_hpte_cache_entry *pgfault_cache; 824 825 struct task_struct *run_task; 826 827 spinlock_t vpa_update_lock; 828 struct kvmppc_vpa vpa; 829 struct kvmppc_vpa dtl; 830 struct dtl_entry *dtl_ptr; 831 unsigned long dtl_index; 832 u64 stolen_logged; 833 struct kvmppc_vpa slb_shadow; 834 835 spinlock_t tbacct_lock; 836 u64 busy_stolen; 837 u64 busy_preempt; 838 839 u64 emul_inst; 840 841 u32 online; 842 843 u64 hfscr_permitted; /* A mask of permitted HFSCR facilities */ 844 845 /* For support of nested guests */ 846 struct kvm_nested_guest *nested; 847 u64 nested_hfscr; /* HFSCR that the L1 requested for the nested guest */ 848 u32 nested_vcpu_id; 849 gpa_t nested_io_gpr; 850 /* For nested APIv2 guests*/ 851 struct kvmhv_nestedv2_io nestedv2_io; 852 #endif 853 854 #ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING 855 struct kvmhv_tb_accumulator *cur_activity; /* What we're timing */ 856 u64 cur_tb_start; /* when it started */ 857 #ifdef CONFIG_KVM_BOOK3S_HV_P9_TIMING 858 struct kvmhv_tb_accumulator vcpu_entry; 859 struct kvmhv_tb_accumulator vcpu_exit; 860 struct kvmhv_tb_accumulator in_guest; 861 struct kvmhv_tb_accumulator hcall; 862 struct kvmhv_tb_accumulator pg_fault; 863 struct kvmhv_tb_accumulator guest_entry; 864 struct kvmhv_tb_accumulator guest_exit; 865 #else 866 struct kvmhv_tb_accumulator rm_entry; /* real-mode entry code */ 867 struct kvmhv_tb_accumulator rm_intr; /* real-mode intr handling */ 868 struct kvmhv_tb_accumulator rm_exit; /* real-mode exit code */ 869 struct kvmhv_tb_accumulator guest_time; /* guest execution */ 870 struct kvmhv_tb_accumulator cede_time; /* time napping inside guest */ 871 #endif 872 #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */ 873 }; 874 875 #define VCPU_FPR(vcpu, i) (vcpu)->arch.fp.fpr[i][TS_FPROFFSET] 876 #define VCPU_VSX_FPR(vcpu, i, j) ((vcpu)->arch.fp.fpr[i][j]) 877 #define VCPU_VSX_VR(vcpu, i) ((vcpu)->arch.vr.vr[i]) 878 879 /* Values for vcpu->arch.state */ 880 #define KVMPPC_VCPU_NOTREADY 0 881 #define KVMPPC_VCPU_RUNNABLE 1 882 #define KVMPPC_VCPU_BUSY_IN_HOST 2 883 884 /* Values for vcpu->arch.io_gpr */ 885 #define KVM_MMIO_REG_MASK 0x003f 886 #define KVM_MMIO_REG_EXT_MASK 0xffc0 887 #define KVM_MMIO_REG_GPR 0x0000 888 #define KVM_MMIO_REG_FPR 0x0040 889 #define KVM_MMIO_REG_QPR 0x0080 890 #define KVM_MMIO_REG_FQPR 0x00c0 891 #define KVM_MMIO_REG_VSX 0x0100 892 #define KVM_MMIO_REG_VMX 0x0180 893 #define KVM_MMIO_REG_NESTED_GPR 0xffc0 894 895 896 #define __KVM_HAVE_ARCH_WQP 897 #define __KVM_HAVE_CREATE_DEVICE 898 899 static inline void kvm_arch_sync_events(struct kvm *kvm) {} 900 static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {} 901 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {} 902 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {} 903 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {} 904 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {} 905 906 #endif /* __POWERPC_KVM_HOST_H__ */ 907