LXR linux/arch/powerpc/include/asm/kvm

   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
  60extern int kvm_unmap_hva_range(struct kvm *kvm,
  61                               unsigned long start, unsigned long end,
  62                               unsigned flags);
  63extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
  64extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
  65extern 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
  82struct lppaca;
  83struct slb_shadow;
  84struct dtl_entry;
  85
  86struct kvmppc_vcpu_book3s;
  87struct kvmppc_book3s_shadow_vcpu;
  88struct kvm_nested_guest;
  89
  90struct kvm_vm_stat {
  91        ulong remote_tlb_flush;
  92        ulong num_2M_pages;
  93        ulong num_1G_pages;
  94};
  95
  96struct 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
 138enum 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 */
 173struct kvmppc_exit_timing {
 174        union {
 175                u64 tv64;
 176                struct {
 177                        u32 tbu, tbl;
 178                } tv32;
 179        };
 180};
 181
 182struct kvmppc_pginfo {
 183        unsigned long pfn;
 184        atomic_t refcnt;
 185};
 186
 187struct 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
 196struct 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 */
 210struct kvmppc_xics;
 211struct kvmppc_icp;
 212extern struct kvm_device_ops kvm_xics_ops;
 213
 214/* XIVE components, defined in book3s_xive.c */
 215struct kvmppc_xive;
 216struct kvmppc_xive_vcpu;
 217extern struct kvm_device_ops kvm_xive_ops;
 218extern struct kvm_device_ops kvm_xive_native_ops;
 219
 220struct 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 */
 230struct 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
 260struct kvm_arch_memory_slot {
 261#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 262        unsigned long *rmap;
 263#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 264};
 265
 266struct 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
 277struct 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
 284struct 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_xive *xive;    /* Current XIVE device in use */
 330        struct {
 331                struct kvmppc_xive *native;
 332                struct kvmppc_xive *xics_on_xive;
 333        } xive_devices;
 334        struct kvmppc_passthru_irqmap *pimap;
 335#endif
 336        struct kvmppc_ops *kvm_ops;
 337#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 338        struct mutex uvmem_lock;
 339        struct list_head uvmem_pfns;
 340        struct mutex mmu_setup_lock;    /* nests inside vcpu mutexes */
 341        u64 l1_ptcr;
 342        int max_nested_lpid;
 343        struct kvm_nested_guest *nested_guests[KVM_MAX_NESTED_GUESTS];
 344        /* This array can grow quite large, keep it at the end */
 345        struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
 346#endif
 347};
 348
 349#define VCORE_ENTRY_MAP(vc)     ((vc)->entry_exit_map & 0xff)
 350#define VCORE_EXIT_MAP(vc)      ((vc)->entry_exit_map >> 8)
 351#define VCORE_IS_EXITING(vc)    (VCORE_EXIT_MAP(vc) != 0)
 352
 353/* This bit is used when a vcore exit is triggered from outside the vcore */
 354#define VCORE_EXIT_REQ          0x10000
 355
 356/*
 357 * Values for vcore_state.
 358 * Note that these are arranged such that lower values
 359 * (< VCORE_SLEEPING) don't require stolen time accounting
 360 * on load/unload, and higher values do.
 361 */
 362#define VCORE_INACTIVE  0
 363#define VCORE_PREEMPT   1
 364#define VCORE_PIGGYBACK 2
 365#define VCORE_SLEEPING  3
 366#define VCORE_RUNNING   4
 367#define VCORE_EXITING   5
 368#define VCORE_POLLING   6
 369
 370/*
 371 * Struct used to manage memory for a virtual processor area
 372 * registered by a PAPR guest.  There are three types of area
 373 * that a guest can register.
 374 */
 375struct kvmppc_vpa {
 376        unsigned long gpa;      /* Current guest phys addr */
 377        void *pinned_addr;      /* Address in kernel linear mapping */
 378        void *pinned_end;       /* End of region */
 379        unsigned long next_gpa; /* Guest phys addr for update */
 380        unsigned long len;      /* Number of bytes required */
 381        u8 update_pending;      /* 1 => update pinned_addr from next_gpa */
 382        bool dirty;             /* true => area has been modified by kernel */
 383};
 384
 385struct kvmppc_pte {
 386        ulong eaddr;
 387        u64 vpage;
 388        ulong raddr;
 389        bool may_read           : 1;
 390        bool may_write          : 1;
 391        bool may_execute        : 1;
 392        unsigned long wimg;
 393        unsigned long rc;
 394        u8 page_size;           /* MMU_PAGE_xxx */
 395        u8 page_shift;
 396};
 397
 398struct kvmppc_mmu {
 399        /* book3s_64 only */
 400        void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
 401        u64  (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
 402        u64  (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
 403        int  (*slbfee)(struct kvm_vcpu *vcpu, gva_t eaddr, ulong *ret_slb);
 404        void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
 405        void (*slbia)(struct kvm_vcpu *vcpu);
 406        /* book3s */
 407        void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
 408        u32  (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
 409        int  (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
 410                      struct kvmppc_pte *pte, bool data, bool iswrite);
 411        void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
 412        int  (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
 413        u64  (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
 414        bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
 415};
 416
 417struct kvmppc_slb {
 418        u64 esid;
 419        u64 vsid;
 420        u64 orige;
 421        u64 origv;
 422        bool valid      : 1;
 423        bool Ks         : 1;
 424        bool Kp         : 1;
 425        bool nx         : 1;
 426        bool large      : 1;    /* PTEs are 16MB */
 427        bool tb         : 1;    /* 1TB segment */
 428        bool class      : 1;
 429        u8 base_page_size;      /* MMU_PAGE_xxx */
 430};
 431
 432/* Struct used to accumulate timing information in HV real mode code */
 433struct kvmhv_tb_accumulator {
 434        u64     seqcount;       /* used to synchronize access, also count * 2 */
 435        u64     tb_total;       /* total time in timebase ticks */
 436        u64     tb_min;         /* min time */
 437        u64     tb_max;         /* max time */
 438};
 439
 440#ifdef CONFIG_PPC_BOOK3S_64
 441struct kvmppc_irq_map {
 442        u32     r_hwirq;
 443        u32     v_hwirq;
 444        struct irq_desc *desc;
 445};
 446
 447#define KVMPPC_PIRQ_MAPPED      1024
 448struct kvmppc_passthru_irqmap {
 449        int n_mapped;
 450        struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED];
 451};
 452#endif
 453
 454# ifdef CONFIG_PPC_FSL_BOOK3E
 455#define KVMPPC_BOOKE_IAC_NUM    2
 456#define KVMPPC_BOOKE_DAC_NUM    2
 457# else
 458#define KVMPPC_BOOKE_IAC_NUM    4
 459#define KVMPPC_BOOKE_DAC_NUM    2
 460# endif
 461#define KVMPPC_BOOKE_MAX_IAC    4
 462#define KVMPPC_BOOKE_MAX_DAC    2
 463
 464/* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
 465#define KVMPPC_EPR_NONE         0 /* EPR not supported */
 466#define KVMPPC_EPR_USER         1 /* exit to userspace to fill EPR */
 467#define KVMPPC_EPR_KERNEL       2 /* in-kernel irqchip */
 468
 469#define KVMPPC_IRQ_DEFAULT      0
 470#define KVMPPC_IRQ_MPIC         1
 471#define KVMPPC_IRQ_XICS         2 /* Includes a XIVE option */
 472#define KVMPPC_IRQ_XIVE         3 /* XIVE native exploitation mode */
 473
 474#define MMIO_HPTE_CACHE_SIZE    4
 475
 476struct mmio_hpte_cache_entry {
 477        unsigned long hpte_v;
 478        unsigned long hpte_r;
 479        unsigned long rpte;
 480        unsigned long pte_index;
 481        unsigned long eaddr;
 482        unsigned long slb_v;
 483        long mmio_update;
 484        unsigned int slb_base_pshift;
 485};
 486
 487struct mmio_hpte_cache {
 488        struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE];
 489        unsigned int index;
 490};
 491
 492#define KVMPPC_VSX_COPY_NONE            0
 493#define KVMPPC_VSX_COPY_WORD            1
 494#define KVMPPC_VSX_COPY_DWORD           2
 495#define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP 3
 496#define KVMPPC_VSX_COPY_WORD_LOAD_DUMP  4
 497
 498#define KVMPPC_VMX_COPY_BYTE            8
 499#define KVMPPC_VMX_COPY_HWORD           9
 500#define KVMPPC_VMX_COPY_WORD            10
 501#define KVMPPC_VMX_COPY_DWORD           11
 502
 503struct openpic;
 504
 505/* W0 and W1 of a XIVE thread management context */
 506union xive_tma_w01 {
 507        struct {
 508                u8      nsr;
 509                u8      cppr;
 510                u8      ipb;
 511                u8      lsmfb;
 512                u8      ack;
 513                u8      inc;
 514                u8      age;
 515                u8      pipr;
 516        };
 517        __be64 w01;
 518};
 519
 520struct kvm_vcpu_arch {
 521        ulong host_stack;
 522        u32 host_pid;
 523#ifdef CONFIG_PPC_BOOK3S
 524        struct kvmppc_slb slb[64];
 525        int slb_max;            /* 1 + index of last valid entry in slb[] */
 526        int slb_nr;             /* total number of entries in SLB */
 527        struct kvmppc_mmu mmu;
 528        struct kvmppc_vcpu_book3s *book3s;
 529#endif
 530#ifdef CONFIG_PPC_BOOK3S_32
 531        struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
 532#endif
 533
 534        struct pt_regs regs;
 535
 536        struct thread_fp_state fp;
 537
 538#ifdef CONFIG_SPE
 539        ulong evr[32];
 540        ulong spefscr;
 541        ulong host_spefscr;
 542        u64 acc;
 543#endif
 544#ifdef CONFIG_ALTIVEC
 545        struct thread_vr_state vr;
 546#endif
 547
 548#ifdef CONFIG_KVM_BOOKE_HV
 549        u32 host_mas4;
 550        u32 host_mas6;
 551        u32 shadow_epcr;
 552        u32 shadow_msrp;
 553        u32 eplc;
 554        u32 epsc;
 555        u32 oldpir;
 556#endif
 557
 558#if defined(CONFIG_BOOKE)
 559#if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
 560        u32 epcr;
 561#endif
 562#endif
 563
 564#ifdef CONFIG_PPC_BOOK3S
 565        /* For Gekko paired singles */
 566        u32 qpr[32];
 567#endif
 568
 569#ifdef CONFIG_PPC_BOOK3S
 570        ulong tar;
 571#endif
 572
 573#ifdef CONFIG_PPC_BOOK3S
 574        ulong hflags;
 575        ulong guest_owned_ext;
 576        ulong purr;
 577        ulong spurr;
 578        ulong ic;
 579        ulong dscr;
 580        ulong amr;
 581        ulong uamor;
 582        ulong iamr;
 583        u32 ctrl;
 584        u32 dabrx;
 585        ulong dabr;
 586        ulong dawr;
 587        ulong dawrx;
 588        ulong ciabr;
 589        ulong cfar;
 590        ulong ppr;
 591        u32 pspb;
 592        ulong fscr;
 593        ulong shadow_fscr;
 594        ulong ebbhr;
 595        ulong ebbrr;
 596        ulong bescr;
 597        ulong csigr;
 598        ulong tacr;
 599        ulong tcscr;
 600        ulong acop;
 601        ulong wort;
 602        ulong tid;
 603        ulong psscr;
 604        ulong hfscr;
 605        ulong shadow_srr1;
 606#endif
 607        u32 vrsave; /* also USPRG0 */
 608        u32 mmucr;
 609        /* shadow_msr is unused for BookE HV */
 610        ulong shadow_msr;
 611        ulong csrr0;
 612        ulong csrr1;
 613        ulong dsrr0;
 614        ulong dsrr1;
 615        ulong mcsrr0;
 616        ulong mcsrr1;
 617        ulong mcsr;
 618        ulong dec;
 619#ifdef CONFIG_BOOKE
 620        u32 decar;
 621#endif
 622        /* Time base value when we entered the guest */
 623        u64 entry_tb;
 624        u64 entry_vtb;
 625        u64 entry_ic;
 626        u32 tcr;
 627        ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
 628        u32 ivor[64];
 629        ulong ivpr;
 630        u32 pvr;
 631
 632        u32 shadow_pid;
 633        u32 shadow_pid1;
 634        u32 pid;
 635        u32 swap_pid;
 636
 637        u32 ccr0;
 638        u32 ccr1;
 639        u32 dbsr;
 640
 641        u64 mmcr[4];    /* MMCR0, MMCR1, MMCR2, MMCR3 */
 642        u64 mmcra;
 643        u64 mmcrs;
 644        u32 pmc[8];
 645        u32 spmc[2];
 646        u64 siar;
 647        u64 sdar;
 648        u64 sier[3];
 649#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 650        u64 tfhar;
 651        u64 texasr;
 652        u64 tfiar;
 653        u64 orig_texasr;
 654
 655        u32 cr_tm;
 656        u64 xer_tm;
 657        u64 lr_tm;
 658        u64 ctr_tm;
 659        u64 amr_tm;
 660        u64 ppr_tm;
 661        u64 dscr_tm;
 662        u64 tar_tm;
 663
 664        ulong gpr_tm[32];
 665
 666        struct thread_fp_state fp_tm;
 667
 668        struct thread_vr_state vr_tm;
 669        u32 vrsave_tm; /* also USPRG0 */
 670#endif
 671
 672#ifdef CONFIG_KVM_EXIT_TIMING
 673        struct mutex exit_timing_lock;
 674        struct kvmppc_exit_timing timing_exit;
 675        struct kvmppc_exit_timing timing_last_enter;
 676        u32 last_exit_type;
 677        u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
 678        u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 679        u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 680        u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 681        u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 682        u64 timing_last_exit;
 683        struct dentry *debugfs_exit_timing;
 684#endif
 685
 686#ifdef CONFIG_PPC_BOOK3S
 687        ulong fault_dar;
 688        u32 fault_dsisr;
 689        unsigned long intr_msr;
 690        ulong fault_gpa;        /* guest real address of page fault (POWER9) */
 691#endif
 692
 693#ifdef CONFIG_BOOKE
 694        ulong fault_dear;
 695        ulong fault_esr;
 696        ulong queued_dear;
 697        ulong queued_esr;
 698        spinlock_t wdt_lock;
 699        struct timer_list wdt_timer;
 700        u32 tlbcfg[4];
 701        u32 tlbps[4];
 702        u32 mmucfg;
 703        u32 eptcfg;
 704        u32 epr;
 705        u64 sprg9;
 706        u32 pwrmgtcr0;
 707        u32 crit_save;
 708        /* guest debug registers*/
 709        struct debug_reg dbg_reg;
 710#endif
 711        gpa_t paddr_accessed;
 712        gva_t vaddr_accessed;
 713        pgd_t *pgdir;
 714
 715        u16 io_gpr; /* GPR used as IO source/target */
 716        u8 mmio_host_swabbed;
 717        u8 mmio_sign_extend;
 718        /* conversion between single and double precision */
 719        u8 mmio_sp64_extend;
 720        /*
 721         * Number of simulations for vsx.
 722         * If we use 2*8bytes to simulate 1*16bytes,
 723         * then the number should be 2 and
 724         * mmio_copy_type=KVMPPC_VSX_COPY_DWORD.
 725         * If we use 4*4bytes to simulate 1*16bytes,
 726         * the number should be 4 and
 727         * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD.
 728         */
 729        u8 mmio_vsx_copy_nums;
 730        u8 mmio_vsx_offset;
 731        u8 mmio_vmx_copy_nums;
 732        u8 mmio_vmx_offset;
 733        u8 mmio_copy_type;
 734        u8 osi_needed;
 735        u8 osi_enabled;
 736        u8 papr_enabled;
 737        u8 watchdog_enabled;
 738        u8 sane;
 739        u8 cpu_type;
 740        u8 hcall_needed;
 741        u8 epr_flags; /* KVMPPC_EPR_xxx */
 742        u8 epr_needed;
 743        u8 external_oneshot;    /* clear external irq after delivery */
 744
 745        u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
 746
 747        struct hrtimer dec_timer;
 748        u64 dec_jiffies;
 749        u64 dec_expires;
 750        unsigned long pending_exceptions;
 751        u8 ceded;
 752        u8 prodded;
 753        u8 doorbell_request;
 754        u8 irq_pending; /* Used by XIVE to signal pending guest irqs */
 755        u32 last_inst;
 756
 757        struct rcuwait *waitp;
 758        struct kvmppc_vcore *vcore;
 759        int ret;
 760        int trap;
 761        int state;
 762        int ptid;
 763        int thread_cpu;
 764        int prev_cpu;
 765        bool timer_running;
 766        wait_queue_head_t cpu_run;
 767        struct machine_check_event mce_evt; /* Valid if trap == 0x200 */
 768
 769        struct kvm_vcpu_arch_shared *shared;
 770#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
 771        bool shared_big_endian;
 772#endif
 773        unsigned long magic_page_pa; /* phys addr to map the magic page to */
 774        unsigned long magic_page_ea; /* effect. addr to map the magic page to */
 775        bool disable_kernel_nx;
 776
 777        int irq_type;           /* one of KVM_IRQ_* */
 778        int irq_cpu_id;
 779        struct openpic *mpic;   /* KVM_IRQ_MPIC */
 780#ifdef CONFIG_KVM_XICS
 781        struct kvmppc_icp *icp; /* XICS presentation controller */
 782        struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */
 783        __be32 xive_cam_word;    /* Cooked W2 in proper endian with valid bit */
 784        u8 xive_pushed;          /* Is the VP pushed on the physical CPU ? */
 785        u8 xive_esc_on;          /* Is the escalation irq enabled ? */
 786        union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */
 787        u64 xive_esc_raddr;      /* Escalation interrupt ESB real addr */
 788        u64 xive_esc_vaddr;      /* Escalation interrupt ESB virt addr */
 789#endif
 790
 791#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 792        struct kvm_vcpu_arch_shared shregs;
 793
 794        struct mmio_hpte_cache mmio_cache;
 795        unsigned long pgfault_addr;
 796        long pgfault_index;
 797        unsigned long pgfault_hpte[2];
 798        struct mmio_hpte_cache_entry *pgfault_cache;
 799
 800        struct task_struct *run_task;
 801
 802        spinlock_t vpa_update_lock;
 803        struct kvmppc_vpa vpa;
 804        struct kvmppc_vpa dtl;
 805        struct dtl_entry *dtl_ptr;
 806        unsigned long dtl_index;
 807        u64 stolen_logged;
 808        struct kvmppc_vpa slb_shadow;
 809
 810        spinlock_t tbacct_lock;
 811        u64 busy_stolen;
 812        u64 busy_preempt;
 813
 814        u32 emul_inst;
 815
 816        u32 online;
 817
 818        /* For support of nested guests */
 819        struct kvm_nested_guest *nested;
 820        u32 nested_vcpu_id;
 821        gpa_t nested_io_gpr;
 822#endif
 823
 824#ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
 825        struct kvmhv_tb_accumulator *cur_activity;      /* What we're timing */
 826        u64     cur_tb_start;                   /* when it started */
 827        struct kvmhv_tb_accumulator rm_entry;   /* real-mode entry code */
 828        struct kvmhv_tb_accumulator rm_intr;    /* real-mode intr handling */
 829        struct kvmhv_tb_accumulator rm_exit;    /* real-mode exit code */
 830        struct kvmhv_tb_accumulator guest_time; /* guest execution */
 831        struct kvmhv_tb_accumulator cede_time;  /* time napping inside guest */
 832
 833        struct dentry *debugfs_dir;
 834#endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
 835};
 836
 837#define VCPU_FPR(vcpu, i)       (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
 838#define VCPU_VSX_FPR(vcpu, i, j)        ((vcpu)->arch.fp.fpr[i][j])
 839#define VCPU_VSX_VR(vcpu, i)            ((vcpu)->arch.vr.vr[i])
 840
 841/* Values for vcpu->arch.state */
 842#define KVMPPC_VCPU_NOTREADY            0
 843#define KVMPPC_VCPU_RUNNABLE            1
 844#define KVMPPC_VCPU_BUSY_IN_HOST        2
 845
 846/* Values for vcpu->arch.io_gpr */
 847#define KVM_MMIO_REG_MASK       0x003f
 848#define KVM_MMIO_REG_EXT_MASK   0xffc0
 849#define KVM_MMIO_REG_GPR        0x0000
 850#define KVM_MMIO_REG_FPR        0x0040
 851#define KVM_MMIO_REG_QPR        0x0080
 852#define KVM_MMIO_REG_FQPR       0x00c0
 853#define KVM_MMIO_REG_VSX        0x0100
 854#define KVM_MMIO_REG_VMX        0x0180
 855#define KVM_MMIO_REG_NESTED_GPR 0xffc0
 856
 857
 858#define __KVM_HAVE_ARCH_WQP
 859#define __KVM_HAVE_CREATE_DEVICE
 860
 861static inline void kvm_arch_hardware_disable(void) {}
 862static inline void kvm_arch_hardware_unsetup(void) {}
 863static inline void kvm_arch_sync_events(struct kvm *kvm) {}
 864static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}
 865static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
 866static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
 867static inline void kvm_arch_exit(void) {}
 868static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
 869static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
 870static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
 871
 872#endif /* __POWERPC_KVM_HOST_H__ */
 873