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