arch/powerpc/include/asm/kvm_host.h

   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
  32 #include <asm/cputhreads.h>
  33
  34 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
  35 #include <asm/kvm_book3s_asm.h>         /* for MAX_SMT_THREADS */
  36 #define KVM_MAX_VCPU_ID         (MAX_SMT_THREADS * KVM_MAX_VCORES)
  37 #define KVM_MAX_NESTED_GUESTS   KVMPPC_NR_LPIDS
  38
  39 #else
  40 #define KVM_MAX_VCPU_ID         KVM_MAX_VCPUS
  41 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
  42
  43 #define __KVM_HAVE_ARCH_INTC_INITIALIZED
  44
  45 #define KVM_HALT_POLL_NS_DEFAULT 10000  /* 10 us */
  46
  47 /* These values are internal and can be increased later */
  48 #define KVM_NR_IRQCHIPS          1
  49 #define KVM_IRQCHIP_NUM_PINS     256
  50
  51 /* PPC-specific vcpu->requests bit members */
  52 #define KVM_REQ_WATCHDOG        KVM_ARCH_REQ(0)
  53 #define KVM_REQ_EPR_EXIT        KVM_ARCH_REQ(1)
  54 #define KVM_REQ_PENDING_TIMER   KVM_ARCH_REQ(2)
  55
  56 #include <linux/mmu_notifier.h>
  57
  58 #define KVM_ARCH_WANT_MMU_NOTIFIER
  59
  60 #define HPTEG_CACHE_NUM                 (1 << 15)
  61 #define HPTEG_HASH_BITS_PTE             13
  62 #define HPTEG_HASH_BITS_PTE_LONG        12
  63 #define HPTEG_HASH_BITS_VPTE            13
  64 #define HPTEG_HASH_BITS_VPTE_LONG       5
  65 #define HPTEG_HASH_BITS_VPTE_64K        11
  66 #define HPTEG_HASH_NUM_PTE              (1 << HPTEG_HASH_BITS_PTE)
  67 #define HPTEG_HASH_NUM_PTE_LONG         (1 << HPTEG_HASH_BITS_PTE_LONG)
  68 #define HPTEG_HASH_NUM_VPTE             (1 << HPTEG_HASH_BITS_VPTE)
  69 #define HPTEG_HASH_NUM_VPTE_LONG        (1 << HPTEG_HASH_BITS_VPTE_LONG)
  70 #define HPTEG_HASH_NUM_VPTE_64K         (1 << HPTEG_HASH_BITS_VPTE_64K)
  71
  72 /* Physical Address Mask - allowed range of real mode RAM access */
  73 #define KVM_PAM                 0x0fffffffffffffffULL
  74
  75 struct lppaca;
  76 struct slb_shadow;
  77 struct dtl_entry;
  78
  79 struct kvmppc_vcpu_book3s;
  80 struct kvmppc_book3s_shadow_vcpu;
  81 struct kvm_nested_guest;
  82
  83 struct kvm_vm_stat {
  84         struct kvm_vm_stat_generic generic;
  85         u64 num_2M_pages;
  86         u64 num_1G_pages;
  87 };
  88
  89 struct kvm_vcpu_stat {
  90         struct kvm_vcpu_stat_generic generic;
  91         u64 sum_exits;
  92         u64 mmio_exits;
  93         u64 signal_exits;
  94         u64 light_exits;
  95         /* Account for special types of light exits: */
  96         u64 itlb_real_miss_exits;
  97         u64 itlb_virt_miss_exits;
  98         u64 dtlb_real_miss_exits;
  99         u64 dtlb_virt_miss_exits;
 100         u64 syscall_exits;
 101         u64 isi_exits;
 102         u64 dsi_exits;
 103         u64 emulated_inst_exits;
 104         u64 dec_exits;
 105         u64 ext_intr_exits;
 106         u64 halt_successful_wait;
 107         u64 dbell_exits;
 108         u64 gdbell_exits;
 109         u64 ld;
 110         u64 st;
 111 #ifdef CONFIG_PPC_BOOK3S
 112         u64 pf_storage;
 113         u64 pf_instruc;
 114         u64 sp_storage;
 115         u64 sp_instruc;
 116         u64 queue_intr;
 117         u64 ld_slow;
 118         u64 st_slow;
 119 #endif
 120         u64 pthru_all;
 121         u64 pthru_host;
 122         u64 pthru_bad_aff;
 123 };
 124
 125 enum kvm_exit_types {
 126         MMIO_EXITS,
 127         SIGNAL_EXITS,
 128         ITLB_REAL_MISS_EXITS,
 129         ITLB_VIRT_MISS_EXITS,
 130         DTLB_REAL_MISS_EXITS,
 131         DTLB_VIRT_MISS_EXITS,
 132         SYSCALL_EXITS,
 133         ISI_EXITS,
 134         DSI_EXITS,
 135         EMULATED_INST_EXITS,
 136         EMULATED_MTMSRWE_EXITS,
 137         EMULATED_WRTEE_EXITS,
 138         EMULATED_MTSPR_EXITS,
 139         EMULATED_MFSPR_EXITS,
 140         EMULATED_MTMSR_EXITS,
 141         EMULATED_MFMSR_EXITS,
 142         EMULATED_TLBSX_EXITS,
 143         EMULATED_TLBWE_EXITS,
 144         EMULATED_RFI_EXITS,
 145         EMULATED_RFCI_EXITS,
 146         EMULATED_RFDI_EXITS,
 147         DEC_EXITS,
 148         EXT_INTR_EXITS,
 149         HALT_WAKEUP,
 150         USR_PR_INST,
 151         FP_UNAVAIL,
 152         DEBUG_EXITS,
 153         TIMEINGUEST,
 154         DBELL_EXITS,
 155         GDBELL_EXITS,
 156         __NUMBER_OF_KVM_EXIT_TYPES
 157 };
 158
 159 /* allow access to big endian 32bit upper/lower parts and 64bit var */
 160 struct kvmppc_exit_timing {
 161         union {
 162                 u64 tv64;
 163                 struct {
 164                         u32 tbu, tbl;
 165                 } tv32;
 166         };
 167 };
 168
 169 struct kvmppc_pginfo {
 170         unsigned long pfn;
 171         atomic_t refcnt;
 172 };
 173
 174 struct kvmppc_spapr_tce_iommu_table {
 175         struct rcu_head rcu;
 176         struct list_head next;
 177         struct iommu_table *tbl;
 178         struct kref kref;
 179 };
 180
 181 #define TCES_PER_PAGE   (PAGE_SIZE / sizeof(u64))
 182
 183 struct kvmppc_spapr_tce_table {
 184         struct list_head list;
 185         struct kvm *kvm;
 186         u64 liobn;
 187         struct rcu_head rcu;
 188         u32 page_shift;
 189         u64 offset;             /* in pages */
 190         u64 size;               /* window size in pages */
 191         struct list_head iommu_tables;
 192         struct mutex alloc_lock;
 193         struct page *pages[0];
 194 };
 195
 196 /* XICS components, defined in book3s_xics.c */
 197 struct kvmppc_xics;
 198 struct kvmppc_icp;
 199 extern struct kvm_device_ops kvm_xics_ops;
 200
 201 /* XIVE components, defined in book3s_xive.c */
 202 struct kvmppc_xive;
 203 struct kvmppc_xive_vcpu;
 204 extern struct kvm_device_ops kvm_xive_ops;
 205 extern struct kvm_device_ops kvm_xive_native_ops;
 206
 207 struct kvmppc_passthru_irqmap;
 208
 209 /*
 210  * The reverse mapping array has one entry for each HPTE,
 211  * which stores the guest's view of the second word of the HPTE
 212  * (including the guest physical address of the mapping),
 213  * plus forward and backward pointers in a doubly-linked ring
 214  * of HPTEs that map the same host page.  The pointers in this
 215  * ring are 32-bit HPTE indexes, to save space.
 216  */
 217 struct revmap_entry {
 218         unsigned long guest_rpte;
 219         unsigned int forw, back;
 220 };
 221
 222 /*
 223  * The rmap array of size number of guest pages is allocated for each memslot.
 224  * This array is used to store usage specific information about the guest page.
 225  * Below are the encodings of the various possible usage types.
 226  */
 227 /* Free bits which can be used to define a new usage */
 228 #define KVMPPC_RMAP_TYPE_MASK   0xff00000000000000
 229 #define KVMPPC_RMAP_NESTED      0xc000000000000000      /* Nested rmap array */
 230 #define KVMPPC_RMAP_HPT         0x0100000000000000      /* HPT guest */
 231
 232 /*
 233  * rmap usage definition for a hash page table (hpt) guest:
 234  * 0x0000080000000000   Lock bit
 235  * 0x0000018000000000   RC bits
 236  * 0x0000000100000000   Present bit
 237  * 0x00000000ffffffff   HPT index bits
 238  * The bottom 32 bits are the index in the guest HPT of a HPTE that points to
 239  * the page.
 240  */
 241 #define KVMPPC_RMAP_LOCK_BIT    43
 242 #define KVMPPC_RMAP_RC_SHIFT    32
 243 #define KVMPPC_RMAP_REFERENCED  (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
 244 #define KVMPPC_RMAP_PRESENT     0x100000000ul
 245 #define KVMPPC_RMAP_INDEX       0xfffffffful
 246
 247 struct kvm_arch_memory_slot {
 248 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 249         unsigned long *rmap;
 250 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 251 };
 252
 253 struct kvm_hpt_info {
 254         /* Host virtual (linear mapping) address of guest HPT */
 255         unsigned long virt;
 256         /* Array of reverse mapping entries for each guest HPTE */
 257         struct revmap_entry *rev;
 258         /* Guest HPT size is 2**(order) bytes */
 259         u32 order;
 260         /* 1 if HPT allocated with CMA, 0 otherwise */
 261         int cma;
 262 };
 263
 264 struct kvm_resize_hpt;
 265
 266 /* Flag values for kvm_arch.secure_guest */
 267 #define KVMPPC_SECURE_INIT_START 0x1 /* H_SVM_INIT_START has been called */
 268 #define KVMPPC_SECURE_INIT_DONE  0x2 /* H_SVM_INIT_DONE completed */
 269 #define KVMPPC_SECURE_INIT_ABORT 0x4 /* H_SVM_INIT_ABORT issued */
 270
 271 struct kvm_arch {
 272         unsigned int lpid;
 273         unsigned int smt_mode;          /* # vcpus per virtual core */
 274         unsigned int emul_smt_mode;     /* emualted SMT mode, on P9 */
 275 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 276         unsigned int tlb_sets;
 277         struct kvm_hpt_info hpt;
 278         atomic64_t mmio_update;
 279         unsigned int host_lpid;
 280         unsigned long host_lpcr;
 281         unsigned long sdr1;
 282         unsigned long host_sdr1;
 283         unsigned long lpcr;
 284         unsigned long vrma_slb_v;
 285         int mmu_ready;
 286         atomic_t vcpus_running;
 287         u32 online_vcores;
 288         atomic_t hpte_mod_interest;
 289         cpumask_t need_tlb_flush;
 290         cpumask_t cpu_in_guest;
 291         u8 radix;
 292         u8 fwnmi_enabled;
 293         u8 secure_guest;
 294         u8 svm_enabled;
 295         bool nested_enable;
 296         bool dawr1_enabled;
 297         pgd_t *pgtable;
 298         u64 process_table;
 299         struct dentry *debugfs_dir;
 300         struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */
 301 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 302 #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 303         struct mutex hpt_mutex;
 304 #endif
 305 #ifdef CONFIG_PPC_BOOK3S_64
 306         struct list_head spapr_tce_tables;
 307         struct list_head rtas_tokens;
 308         struct mutex rtas_token_lock;
 309         DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
 310 #endif
 311 #ifdef CONFIG_KVM_MPIC
 312         struct openpic *mpic;
 313 #endif
 314 #ifdef CONFIG_KVM_XICS
 315         struct kvmppc_xics *xics;
 316         struct kvmppc_xics *xics_device;
 317         struct kvmppc_xive *xive;    /* Current XIVE device in use */
 318         struct {
 319                 struct kvmppc_xive *native;
 320                 struct kvmppc_xive *xics_on_xive;
 321         } xive_devices;
 322         struct kvmppc_passthru_irqmap *pimap;
 323 #endif
 324         struct kvmppc_ops *kvm_ops;
 325 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 326         struct mutex uvmem_lock;
 327         struct list_head uvmem_pfns;
 328         struct mutex mmu_setup_lock;    /* nests inside vcpu mutexes */
 329         u64 l1_ptcr;
 330         int max_nested_lpid;
 331         struct kvm_nested_guest *nested_guests[KVM_MAX_NESTED_GUESTS];
 332         /* This array can grow quite large, keep it at the end */
 333         struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
 334 #endif
 335 };
 336
 337 #define VCORE_ENTRY_MAP(vc)     ((vc)->entry_exit_map & 0xff)
 338 #define VCORE_EXIT_MAP(vc)      ((vc)->entry_exit_map >> 8)
 339 #define VCORE_IS_EXITING(vc)    (VCORE_EXIT_MAP(vc) != 0)
 340
 341 /* This bit is used when a vcore exit is triggered from outside the vcore */
 342 #define VCORE_EXIT_REQ          0x10000
 343
 344 /*
 345  * Values for vcore_state.
 346  * Note that these are arranged such that lower values
 347  * (< VCORE_SLEEPING) don't require stolen time accounting
 348  * on load/unload, and higher values do.
 349  */
 350 #define VCORE_INACTIVE  0
 351 #define VCORE_PREEMPT   1
 352 #define VCORE_PIGGYBACK 2
 353 #define VCORE_SLEEPING  3
 354 #define VCORE_RUNNING   4
 355 #define VCORE_EXITING   5
 356 #define VCORE_POLLING   6
 357
 358 /*
 359  * Struct used to manage memory for a virtual processor area
 360  * registered by a PAPR guest.  There are three types of area
 361  * that a guest can register.
 362  */
 363 struct kvmppc_vpa {
 364         unsigned long gpa;      /* Current guest phys addr */
 365         void *pinned_addr;      /* Address in kernel linear mapping */
 366         void *pinned_end;       /* End of region */
 367         unsigned long next_gpa; /* Guest phys addr for update */
 368         unsigned long len;      /* Number of bytes required */
 369         u8 update_pending;      /* 1 => update pinned_addr from next_gpa */
 370         bool dirty;             /* true => area has been modified by kernel */
 371 };
 372
 373 struct kvmppc_pte {
 374         ulong eaddr;
 375         u64 vpage;
 376         ulong raddr;
 377         bool may_read           : 1;
 378         bool may_write          : 1;
 379         bool may_execute        : 1;
 380         unsigned long wimg;
 381         unsigned long rc;
 382         u8 page_size;           /* MMU_PAGE_xxx */
 383         u8 page_shift;
 384 };
 385
 386 struct kvmppc_mmu {
 387         /* book3s_64 only */
 388         void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
 389         u64  (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
 390         u64  (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
 391         int  (*slbfee)(struct kvm_vcpu *vcpu, gva_t eaddr, ulong *ret_slb);
 392         void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
 393         void (*slbia)(struct kvm_vcpu *vcpu);
 394         /* book3s */
 395         void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
 396         u32  (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
 397         int  (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
 398                       struct kvmppc_pte *pte, bool data, bool iswrite);
 399         void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
 400         int  (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
 401         u64  (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
 402         bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
 403 };
 404
 405 struct kvmppc_slb {
 406         u64 esid;
 407         u64 vsid;
 408         u64 orige;
 409         u64 origv;
 410         bool valid      : 1;
 411         bool Ks         : 1;
 412         bool Kp         : 1;
 413         bool nx         : 1;
 414         bool large      : 1;    /* PTEs are 16MB */
 415         bool tb         : 1;    /* 1TB segment */
 416         bool class      : 1;
 417         u8 base_page_size;      /* MMU_PAGE_xxx */
 418 };
 419
 420 /* Struct used to accumulate timing information in HV real mode code */
 421 struct kvmhv_tb_accumulator {
 422         u64     seqcount;       /* used to synchronize access, also count * 2 */
 423         u64     tb_total;       /* total time in timebase ticks */
 424         u64     tb_min;         /* min time */
 425         u64     tb_max;         /* max time */
 426 };
 427
 428 #ifdef CONFIG_PPC_BOOK3S_64
 429 struct kvmppc_irq_map {
 430         u32     r_hwirq;
 431         u32     v_hwirq;
 432         struct irq_desc *desc;
 433 };
 434
 435 #define KVMPPC_PIRQ_MAPPED      1024
 436 struct kvmppc_passthru_irqmap {
 437         int n_mapped;
 438         struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED];
 439 };
 440 #endif
 441
 442 # ifdef CONFIG_PPC_FSL_BOOK3E
 443 #define KVMPPC_BOOKE_IAC_NUM    2
 444 #define KVMPPC_BOOKE_DAC_NUM    2
 445 # else
 446 #define KVMPPC_BOOKE_IAC_NUM    4
 447 #define KVMPPC_BOOKE_DAC_NUM    2
 448 # endif
 449 #define KVMPPC_BOOKE_MAX_IAC    4
 450 #define KVMPPC_BOOKE_MAX_DAC    2
 451
 452 /* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
 453 #define KVMPPC_EPR_NONE         0 /* EPR not supported */
 454 #define KVMPPC_EPR_USER         1 /* exit to userspace to fill EPR */
 455 #define KVMPPC_EPR_KERNEL       2 /* in-kernel irqchip */
 456
 457 #define KVMPPC_IRQ_DEFAULT      0
 458 #define KVMPPC_IRQ_MPIC         1
 459 #define KVMPPC_IRQ_XICS         2 /* Includes a XIVE option */
 460 #define KVMPPC_IRQ_XIVE         3 /* XIVE native exploitation mode */
 461
 462 #define MMIO_HPTE_CACHE_SIZE    4
 463
 464 struct mmio_hpte_cache_entry {
 465         unsigned long hpte_v;
 466         unsigned long hpte_r;
 467         unsigned long rpte;
 468         unsigned long pte_index;
 469         unsigned long eaddr;
 470         unsigned long slb_v;
 471         long mmio_update;
 472         unsigned int slb_base_pshift;
 473 };
 474
 475 struct mmio_hpte_cache {
 476         struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE];
 477         unsigned int index;
 478 };
 479
 480 #define KVMPPC_VSX_COPY_NONE            0
 481 #define KVMPPC_VSX_COPY_WORD            1
 482 #define KVMPPC_VSX_COPY_DWORD           2
 483 #define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP 3
 484 #define KVMPPC_VSX_COPY_WORD_LOAD_DUMP  4
 485
 486 #define KVMPPC_VMX_COPY_BYTE            8
 487 #define KVMPPC_VMX_COPY_HWORD           9
 488 #define KVMPPC_VMX_COPY_WORD            10
 489 #define KVMPPC_VMX_COPY_DWORD           11
 490
 491 struct openpic;
 492
 493 /* W0 and W1 of a XIVE thread management context */
 494 union xive_tma_w01 {
 495         struct {
 496                 u8      nsr;
 497                 u8      cppr;
 498                 u8      ipb;
 499                 u8      lsmfb;
 500                 u8      ack;
 501                 u8      inc;
 502                 u8      age;
 503                 u8      pipr;
 504         };
 505         __be64 w01;
 506 };
 507
 508 struct kvm_vcpu_arch {
 509         ulong host_stack;
 510         u32 host_pid;
 511 #ifdef CONFIG_PPC_BOOK3S
 512         struct kvmppc_slb slb[64];
 513         int slb_max;            /* 1 + index of last valid entry in slb[] */
 514         int slb_nr;             /* total number of entries in SLB */
 515         struct kvmppc_mmu mmu;
 516         struct kvmppc_vcpu_book3s *book3s;
 517 #endif
 518 #ifdef CONFIG_PPC_BOOK3S_32
 519         struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
 520 #endif
 521
 522         struct pt_regs regs;
 523
 524         struct thread_fp_state fp;
 525
 526 #ifdef CONFIG_SPE
 527         ulong evr[32];
 528         ulong spefscr;
 529         ulong host_spefscr;
 530         u64 acc;
 531 #endif
 532 #ifdef CONFIG_ALTIVEC
 533         struct thread_vr_state vr;
 534 #endif
 535
 536 #ifdef CONFIG_KVM_BOOKE_HV
 537         u32 host_mas4;
 538         u32 host_mas6;
 539         u32 shadow_epcr;
 540         u32 shadow_msrp;
 541         u32 eplc;
 542         u32 epsc;
 543         u32 oldpir;
 544 #endif
 545
 546 #if defined(CONFIG_BOOKE)
 547 #if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
 548         u32 epcr;
 549 #endif
 550 #endif
 551
 552 #ifdef CONFIG_PPC_BOOK3S
 553         /* For Gekko paired singles */
 554         u32 qpr[32];
 555 #endif
 556
 557 #ifdef CONFIG_PPC_BOOK3S
 558         ulong tar;
 559 #endif
 560
 561 #ifdef CONFIG_PPC_BOOK3S
 562         ulong hflags;
 563         ulong guest_owned_ext;
 564         ulong purr;
 565         ulong spurr;
 566         ulong ic;
 567         ulong dscr;
 568         ulong amr;
 569         ulong uamor;
 570         ulong iamr;
 571         u32 ctrl;
 572         u32 dabrx;
 573         ulong dabr;
 574         ulong dawr0;
 575         ulong dawrx0;
 576         ulong dawr1;
 577         ulong dawrx1;
 578         ulong ciabr;
 579         ulong cfar;
 580         ulong ppr;
 581         u32 pspb;
 582         ulong fscr;
 583         ulong shadow_fscr;
 584         ulong ebbhr;
 585         ulong ebbrr;
 586         ulong bescr;
 587         ulong csigr;
 588         ulong tacr;
 589         ulong tcscr;
 590         ulong acop;
 591         ulong wort;
 592         ulong tid;
 593         ulong psscr;
 594         ulong hfscr;
 595         ulong shadow_srr1;
 596 #endif
 597         u32 vrsave; /* also USPRG0 */
 598         u32 mmucr;
 599         /* shadow_msr is unused for BookE HV */
 600         ulong shadow_msr;
 601         ulong csrr0;
 602         ulong csrr1;
 603         ulong dsrr0;
 604         ulong dsrr1;
 605         ulong mcsrr0;
 606         ulong mcsrr1;
 607         ulong mcsr;
 608         ulong dec;
 609 #ifdef CONFIG_BOOKE
 610         u32 decar;
 611 #endif
 612         /* Time base value when we entered the guest */
 613         u64 entry_tb;
 614         u64 entry_vtb;
 615         u64 entry_ic;
 616         u32 tcr;
 617         ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
 618         u32 ivor[64];
 619         ulong ivpr;
 620         u32 pvr;
 621
 622         u32 shadow_pid;
 623         u32 shadow_pid1;
 624         u32 pid;
 625         u32 swap_pid;
 626
 627         u32 ccr0;
 628         u32 ccr1;
 629         u32 dbsr;
 630
 631         u64 mmcr[4];    /* MMCR0, MMCR1, MMCR2, MMCR3 */
 632         u64 mmcra;
 633         u64 mmcrs;
 634         u32 pmc[8];
 635         u32 spmc[2];
 636         u64 siar;
 637         u64 sdar;
 638         u64 sier[3];
 639 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 640         u64 tfhar;
 641         u64 texasr;
 642         u64 tfiar;
 643         u64 orig_texasr;
 644
 645         u32 cr_tm;
 646         u64 xer_tm;
 647         u64 lr_tm;
 648         u64 ctr_tm;
 649         u64 amr_tm;
 650         u64 ppr_tm;
 651         u64 dscr_tm;
 652         u64 tar_tm;
 653
 654         ulong gpr_tm[32];
 655
 656         struct thread_fp_state fp_tm;
 657
 658         struct thread_vr_state vr_tm;
 659         u32 vrsave_tm; /* also USPRG0 */
 660 #endif
 661
 662 #ifdef CONFIG_KVM_EXIT_TIMING
 663         struct mutex exit_timing_lock;
 664         struct kvmppc_exit_timing timing_exit;
 665         struct kvmppc_exit_timing timing_last_enter;
 666         u32 last_exit_type;
 667         u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
 668         u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 669         u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 670         u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 671         u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 672         u64 timing_last_exit;
 673         struct dentry *debugfs_exit_timing;
 674 #endif
 675
 676 #ifdef CONFIG_PPC_BOOK3S
 677         ulong fault_dar;
 678         u32 fault_dsisr;
 679         unsigned long intr_msr;
 680         /*
 681          * POWER9 and later: fault_gpa contains the guest real address of page
 682          * fault for a radix guest, or segment descriptor (equivalent to result
 683          * from slbmfev of SLB entry that translated the EA) for hash guests.
 684          */
 685         ulong fault_gpa;
 686 #endif
 687
 688 #ifdef CONFIG_BOOKE
 689         ulong fault_dear;
 690         ulong fault_esr;
 691         ulong queued_dear;
 692         ulong queued_esr;
 693         spinlock_t wdt_lock;
 694         struct timer_list wdt_timer;
 695         u32 tlbcfg[4];
 696         u32 tlbps[4];
 697         u32 mmucfg;
 698         u32 eptcfg;
 699         u32 epr;
 700         u64 sprg9;
 701         u32 pwrmgtcr0;
 702         u32 crit_save;
 703         /* guest debug registers*/
 704         struct debug_reg dbg_reg;
 705 #endif
 706         gpa_t paddr_accessed;
 707         gva_t vaddr_accessed;
 708         pgd_t *pgdir;
 709
 710         u16 io_gpr; /* GPR used as IO source/target */
 711         u8 mmio_host_swabbed;
 712         u8 mmio_sign_extend;
 713         /* conversion between single and double precision */
 714         u8 mmio_sp64_extend;
 715         /*
 716          * Number of simulations for vsx.
 717          * If we use 2*8bytes to simulate 1*16bytes,
 718          * then the number should be 2 and
 719          * mmio_copy_type=KVMPPC_VSX_COPY_DWORD.
 720          * If we use 4*4bytes to simulate 1*16bytes,
 721          * the number should be 4 and
 722          * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD.
 723          */
 724         u8 mmio_vsx_copy_nums;
 725         u8 mmio_vsx_offset;
 726         u8 mmio_vmx_copy_nums;
 727         u8 mmio_vmx_offset;
 728         u8 mmio_copy_type;
 729         u8 osi_needed;
 730         u8 osi_enabled;
 731         u8 papr_enabled;
 732         u8 watchdog_enabled;
 733         u8 sane;
 734         u8 cpu_type;
 735         u8 hcall_needed;
 736         u8 epr_flags; /* KVMPPC_EPR_xxx */
 737         u8 epr_needed;
 738         u8 external_oneshot;    /* clear external irq after delivery */
 739
 740         u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
 741
 742         struct hrtimer dec_timer;
 743         u64 dec_jiffies;
 744         u64 dec_expires;
 745         unsigned long pending_exceptions;
 746         u8 ceded;
 747         u8 prodded;
 748         u8 doorbell_request;
 749         u8 irq_pending; /* Used by XIVE to signal pending guest irqs */
 750         u32 last_inst;
 751
 752         struct rcuwait *waitp;
 753         struct kvmppc_vcore *vcore;
 754         int ret;
 755         int trap;
 756         int state;
 757         int ptid;
 758         int thread_cpu;
 759         int prev_cpu;
 760         bool timer_running;
 761         wait_queue_head_t cpu_run;
 762         struct machine_check_event mce_evt; /* Valid if trap == 0x200 */
 763
 764         struct kvm_vcpu_arch_shared *shared;
 765 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
 766         bool shared_big_endian;
 767 #endif
 768         unsigned long magic_page_pa; /* phys addr to map the magic page to */
 769         unsigned long magic_page_ea; /* effect. addr to map the magic page to */
 770         bool disable_kernel_nx;
 771
 772         int irq_type;           /* one of KVM_IRQ_* */
 773         int irq_cpu_id;
 774         struct openpic *mpic;   /* KVM_IRQ_MPIC */
 775 #ifdef CONFIG_KVM_XICS
 776         struct kvmppc_icp *icp; /* XICS presentation controller */
 777         struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */
 778         __be32 xive_cam_word;    /* Cooked W2 in proper endian with valid bit */
 779         u8 xive_pushed;          /* Is the VP pushed on the physical CPU ? */
 780         u8 xive_esc_on;          /* Is the escalation irq enabled ? */
 781         union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */
 782         u64 xive_esc_raddr;      /* Escalation interrupt ESB real addr */
 783         u64 xive_esc_vaddr;      /* Escalation interrupt ESB virt addr */
 784 #endif
 785
 786 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 787         struct kvm_vcpu_arch_shared shregs;
 788
 789         struct mmio_hpte_cache mmio_cache;
 790         unsigned long pgfault_addr;
 791         long pgfault_index;
 792         unsigned long pgfault_hpte[2];
 793         struct mmio_hpte_cache_entry *pgfault_cache;
 794
 795         struct task_struct *run_task;
 796
 797         spinlock_t vpa_update_lock;
 798         struct kvmppc_vpa vpa;
 799         struct kvmppc_vpa dtl;
 800         struct dtl_entry *dtl_ptr;
 801         unsigned long dtl_index;
 802         u64 stolen_logged;
 803         struct kvmppc_vpa slb_shadow;
 804
 805         spinlock_t tbacct_lock;
 806         u64 busy_stolen;
 807         u64 busy_preempt;
 808
 809         u32 emul_inst;
 810
 811         u32 online;
 812
 813         u64 hfscr_permitted;    /* A mask of permitted HFSCR facilities */
 814
 815         /* For support of nested guests */
 816         struct kvm_nested_guest *nested;
 817         u32 nested_vcpu_id;
 818         gpa_t nested_io_gpr;
 819 #endif
 820
 821 #ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
 822         struct kvmhv_tb_accumulator *cur_activity;      /* What we're timing */
 823         u64     cur_tb_start;                   /* when it started */
 824         struct kvmhv_tb_accumulator rm_entry;   /* real-mode entry code */
 825         struct kvmhv_tb_accumulator rm_intr;    /* real-mode intr handling */
 826         struct kvmhv_tb_accumulator rm_exit;    /* real-mode exit code */
 827         struct kvmhv_tb_accumulator guest_time; /* guest execution */
 828         struct kvmhv_tb_accumulator cede_time;  /* time napping inside guest */
 829
 830         struct dentry *debugfs_dir;
 831 #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
 832 };
 833
 834 #define VCPU_FPR(vcpu, i)       (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
 835 #define VCPU_VSX_FPR(vcpu, i, j)        ((vcpu)->arch.fp.fpr[i][j])
 836 #define VCPU_VSX_VR(vcpu, i)            ((vcpu)->arch.vr.vr[i])
 837
 838 /* Values for vcpu->arch.state */
 839 #define KVMPPC_VCPU_NOTREADY            0
 840 #define KVMPPC_VCPU_RUNNABLE            1
 841 #define KVMPPC_VCPU_BUSY_IN_HOST        2
 842
 843 /* Values for vcpu->arch.io_gpr */
 844 #define KVM_MMIO_REG_MASK       0x003f
 845 #define KVM_MMIO_REG_EXT_MASK   0xffc0
 846 #define KVM_MMIO_REG_GPR        0x0000
 847 #define KVM_MMIO_REG_FPR        0x0040
 848 #define KVM_MMIO_REG_QPR        0x0080
 849 #define KVM_MMIO_REG_FQPR       0x00c0
 850 #define KVM_MMIO_REG_VSX        0x0100
 851 #define KVM_MMIO_REG_VMX        0x0180
 852 #define KVM_MMIO_REG_NESTED_GPR 0xffc0
 853
 854
 855 #define __KVM_HAVE_ARCH_WQP
 856 #define __KVM_HAVE_CREATE_DEVICE
 857
 858 static inline void kvm_arch_hardware_disable(void) {}
 859 static inline void kvm_arch_hardware_unsetup(void) {}
 860 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
 861 static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}
 862 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
 863 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
 864 static inline void kvm_arch_exit(void) {}
 865 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
 866 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
 867 static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
 868
 869 #endif /* __POWERPC_KVM_HOST_H__ */