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
 278struct kvm_arch {
 279        unsigned int lpid;
 280        unsigned int smt_mode;          /* # vcpus per virtual core */
 281        unsigned int emul_smt_mode;     /* emualted SMT mode, on P9 */
 282#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 283        unsigned int tlb_sets;
 284        struct kvm_hpt_info hpt;
 285        atomic64_t mmio_update;
 286        unsigned int host_lpid;
 287        unsigned long host_lpcr;
 288        unsigned long sdr1;
 289        unsigned long host_sdr1;
 290        unsigned long lpcr;
 291        unsigned long vrma_slb_v;
 292        int mmu_ready;
 293        atomic_t vcpus_running;
 294        u32 online_vcores;
 295        atomic_t hpte_mod_interest;
 296        cpumask_t need_tlb_flush;
 297        cpumask_t cpu_in_guest;
 298        u8 radix;
 299        u8 fwnmi_enabled;
 300        u8 secure_guest;
 301        bool threads_indep;
 302        bool nested_enable;
 303        pgd_t *pgtable;
 304        u64 process_table;
 305        struct dentry *debugfs_dir;
 306        struct dentry *htab_dentry;
 307        struct dentry *radix_dentry;
 308        struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */
 309#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 310#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 311        struct mutex hpt_mutex;
 312#endif
 313#ifdef CONFIG_PPC_BOOK3S_64
 314        struct list_head spapr_tce_tables;
 315        struct list_head rtas_tokens;
 316        struct mutex rtas_token_lock;
 317        DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
 318#endif
 319#ifdef CONFIG_KVM_MPIC
 320        struct openpic *mpic;
 321#endif
 322#ifdef CONFIG_KVM_XICS
 323        struct kvmppc_xics *xics;
 324        struct kvmppc_xive *xive;    /* Current XIVE device in use */
 325        struct {
 326                struct kvmppc_xive *native;
 327                struct kvmppc_xive *xics_on_xive;
 328        } xive_devices;
 329        struct kvmppc_passthru_irqmap *pimap;
 330#endif
 331        struct kvmppc_ops *kvm_ops;
 332#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 333        struct mutex mmu_setup_lock;    /* nests inside vcpu mutexes */
 334        u64 l1_ptcr;
 335        int max_nested_lpid;
 336        struct kvm_nested_guest *nested_guests[KVM_MAX_NESTED_GUESTS];
 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 */
 368struct 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
 378struct 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
 391struct 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 (*reset_msr)(struct kvm_vcpu *vcpu);
 405        void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
 406        int  (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
 407        u64  (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
 408        bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
 409};
 410
 411struct kvmppc_slb {
 412        u64 esid;
 413        u64 vsid;
 414        u64 orige;
 415        u64 origv;
 416        bool valid      : 1;
 417        bool Ks         : 1;
 418        bool Kp         : 1;
 419        bool nx         : 1;
 420        bool large      : 1;    /* PTEs are 16MB */
 421        bool tb         : 1;    /* 1TB segment */
 422        bool class      : 1;
 423        u8 base_page_size;      /* MMU_PAGE_xxx */
 424};
 425
 426/* Struct used to accumulate timing information in HV real mode code */
 427struct kvmhv_tb_accumulator {
 428        u64     seqcount;       /* used to synchronize access, also count * 2 */
 429        u64     tb_total;       /* total time in timebase ticks */
 430        u64     tb_min;         /* min time */
 431        u64     tb_max;         /* max time */
 432};
 433
 434#ifdef CONFIG_PPC_BOOK3S_64
 435struct kvmppc_irq_map {
 436        u32     r_hwirq;
 437        u32     v_hwirq;
 438        struct irq_desc *desc;
 439};
 440
 441#define KVMPPC_PIRQ_MAPPED      1024
 442struct kvmppc_passthru_irqmap {
 443        int n_mapped;
 444        struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED];
 445};
 446#endif
 447
 448# ifdef CONFIG_PPC_FSL_BOOK3E
 449#define KVMPPC_BOOKE_IAC_NUM    2
 450#define KVMPPC_BOOKE_DAC_NUM    2
 451# else
 452#define KVMPPC_BOOKE_IAC_NUM    4
 453#define KVMPPC_BOOKE_DAC_NUM    2
 454# endif
 455#define KVMPPC_BOOKE_MAX_IAC    4
 456#define KVMPPC_BOOKE_MAX_DAC    2
 457
 458/* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
 459#define KVMPPC_EPR_NONE         0 /* EPR not supported */
 460#define KVMPPC_EPR_USER         1 /* exit to userspace to fill EPR */
 461#define KVMPPC_EPR_KERNEL       2 /* in-kernel irqchip */
 462
 463#define KVMPPC_IRQ_DEFAULT      0
 464#define KVMPPC_IRQ_MPIC         1
 465#define KVMPPC_IRQ_XICS         2 /* Includes a XIVE option */
 466#define KVMPPC_IRQ_XIVE         3 /* XIVE native exploitation mode */
 467
 468#define MMIO_HPTE_CACHE_SIZE    4
 469
 470struct mmio_hpte_cache_entry {
 471        unsigned long hpte_v;
 472        unsigned long hpte_r;
 473        unsigned long rpte;
 474        unsigned long pte_index;
 475        unsigned long eaddr;
 476        unsigned long slb_v;
 477        long mmio_update;
 478        unsigned int slb_base_pshift;
 479};
 480
 481struct mmio_hpte_cache {
 482        struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE];
 483        unsigned int index;
 484};
 485
 486#define KVMPPC_VSX_COPY_NONE            0
 487#define KVMPPC_VSX_COPY_WORD            1
 488#define KVMPPC_VSX_COPY_DWORD           2
 489#define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP 3
 490#define KVMPPC_VSX_COPY_WORD_LOAD_DUMP  4
 491
 492#define KVMPPC_VMX_COPY_BYTE            8
 493#define KVMPPC_VMX_COPY_HWORD           9
 494#define KVMPPC_VMX_COPY_WORD            10
 495#define KVMPPC_VMX_COPY_DWORD           11
 496
 497struct openpic;
 498
 499/* W0 and W1 of a XIVE thread management context */
 500union xive_tma_w01 {
 501        struct {
 502                u8      nsr;
 503                u8      cppr;
 504                u8      ipb;
 505                u8      lsmfb;
 506                u8      ack;
 507                u8      inc;
 508                u8      age;
 509                u8      pipr;
 510        };
 511        __be64 w01;
 512};
 513
 514struct kvm_vcpu_arch {
 515        ulong host_stack;
 516        u32 host_pid;
 517#ifdef CONFIG_PPC_BOOK3S
 518        struct kvmppc_slb slb[64];
 519        int slb_max;            /* 1 + index of last valid entry in slb[] */
 520        int slb_nr;             /* total number of entries in SLB */
 521        struct kvmppc_mmu mmu;
 522        struct kvmppc_vcpu_book3s *book3s;
 523#endif
 524#ifdef CONFIG_PPC_BOOK3S_32
 525        struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
 526#endif
 527
 528        struct pt_regs regs;
 529
 530        struct thread_fp_state fp;
 531
 532#ifdef CONFIG_SPE
 533        ulong evr[32];
 534        ulong spefscr;
 535        ulong host_spefscr;
 536        u64 acc;
 537#endif
 538#ifdef CONFIG_ALTIVEC
 539        struct thread_vr_state vr;
 540#endif
 541
 542#ifdef CONFIG_KVM_BOOKE_HV
 543        u32 host_mas4;
 544        u32 host_mas6;
 545        u32 shadow_epcr;
 546        u32 shadow_msrp;
 547        u32 eplc;
 548        u32 epsc;
 549        u32 oldpir;
 550#endif
 551
 552#if defined(CONFIG_BOOKE)
 553#if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
 554        u32 epcr;
 555#endif
 556#endif
 557
 558#ifdef CONFIG_PPC_BOOK3S
 559        /* For Gekko paired singles */
 560        u32 qpr[32];
 561#endif
 562
 563#ifdef CONFIG_PPC_BOOK3S
 564        ulong tar;
 565#endif
 566
 567#ifdef CONFIG_PPC_BOOK3S
 568        ulong hflags;
 569        ulong guest_owned_ext;
 570        ulong purr;
 571        ulong spurr;
 572        ulong ic;
 573        ulong dscr;
 574        ulong amr;
 575        ulong uamor;
 576        ulong iamr;
 577        u32 ctrl;
 578        u32 dabrx;
 579        ulong dabr;
 580        ulong dawr;
 581        ulong dawrx;
 582        ulong ciabr;
 583        ulong cfar;
 584        ulong ppr;
 585        u32 pspb;
 586        ulong fscr;
 587        ulong shadow_fscr;
 588        ulong ebbhr;
 589        ulong ebbrr;
 590        ulong bescr;
 591        ulong csigr;
 592        ulong tacr;
 593        ulong tcscr;
 594        ulong acop;
 595        ulong wort;
 596        ulong tid;
 597        ulong psscr;
 598        ulong hfscr;
 599        ulong shadow_srr1;
 600#endif
 601        u32 vrsave; /* also USPRG0 */
 602        u32 mmucr;
 603        /* shadow_msr is unused for BookE HV */
 604        ulong shadow_msr;
 605        ulong csrr0;
 606        ulong csrr1;
 607        ulong dsrr0;
 608        ulong dsrr1;
 609        ulong mcsrr0;
 610        ulong mcsrr1;
 611        ulong mcsr;
 612        ulong dec;
 613#ifdef CONFIG_BOOKE
 614        u32 decar;
 615#endif
 616        /* Time base value when we entered the guest */
 617        u64 entry_tb;
 618        u64 entry_vtb;
 619        u64 entry_ic;
 620        u32 tcr;
 621        ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
 622        u32 ivor[64];
 623        ulong ivpr;
 624        u32 pvr;
 625
 626        u32 shadow_pid;
 627        u32 shadow_pid1;
 628        u32 pid;
 629        u32 swap_pid;
 630
 631        u32 ccr0;
 632        u32 ccr1;
 633        u32 dbsr;
 634
 635        u64 mmcr[5];
 636        u32 pmc[8];
 637        u32 spmc[2];
 638        u64 siar;
 639        u64 sdar;
 640        u64 sier;
 641#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 642        u64 tfhar;
 643        u64 texasr;
 644        u64 tfiar;
 645        u64 orig_texasr;
 646
 647        u32 cr_tm;
 648        u64 xer_tm;
 649        u64 lr_tm;
 650        u64 ctr_tm;
 651        u64 amr_tm;
 652        u64 ppr_tm;
 653        u64 dscr_tm;
 654        u64 tar_tm;
 655
 656        ulong gpr_tm[32];
 657
 658        struct thread_fp_state fp_tm;
 659
 660        struct thread_vr_state vr_tm;
 661        u32 vrsave_tm; /* also USPRG0 */
 662#endif
 663
 664#ifdef CONFIG_KVM_EXIT_TIMING
 665        struct mutex exit_timing_lock;
 666        struct kvmppc_exit_timing timing_exit;
 667        struct kvmppc_exit_timing timing_last_enter;
 668        u32 last_exit_type;
 669        u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
 670        u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 671        u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 672        u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 673        u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 674        u64 timing_last_exit;
 675        struct dentry *debugfs_exit_timing;
 676#endif
 677
 678#ifdef CONFIG_PPC_BOOK3S
 679        ulong fault_dar;
 680        u32 fault_dsisr;
 681        unsigned long intr_msr;
 682        ulong fault_gpa;        /* guest real address of page fault (POWER9) */
 683#endif
 684
 685#ifdef CONFIG_BOOKE
 686        ulong fault_dear;
 687        ulong fault_esr;
 688        ulong queued_dear;
 689        ulong queued_esr;
 690        spinlock_t wdt_lock;
 691        struct timer_list wdt_timer;
 692        u32 tlbcfg[4];
 693        u32 tlbps[4];
 694        u32 mmucfg;
 695        u32 eptcfg;
 696        u32 epr;
 697        u64 sprg9;
 698        u32 pwrmgtcr0;
 699        u32 crit_save;
 700        /* guest debug registers*/
 701        struct debug_reg dbg_reg;
 702#endif
 703        gpa_t paddr_accessed;
 704        gva_t vaddr_accessed;
 705        pgd_t *pgdir;
 706
 707        u16 io_gpr; /* GPR used as IO source/target */
 708        u8 mmio_host_swabbed;
 709        u8 mmio_sign_extend;
 710        /* conversion between single and double precision */
 711        u8 mmio_sp64_extend;
 712        /*
 713         * Number of simulations for vsx.
 714         * If we use 2*8bytes to simulate 1*16bytes,
 715         * then the number should be 2 and
 716         * mmio_copy_type=KVMPPC_VSX_COPY_DWORD.
 717         * If we use 4*4bytes to simulate 1*16bytes,
 718         * the number should be 4 and
 719         * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD.
 720         */
 721        u8 mmio_vsx_copy_nums;
 722        u8 mmio_vsx_offset;
 723        u8 mmio_vmx_copy_nums;
 724        u8 mmio_vmx_offset;
 725        u8 mmio_copy_type;
 726        u8 osi_needed;
 727        u8 osi_enabled;
 728        u8 papr_enabled;
 729        u8 watchdog_enabled;
 730        u8 sane;
 731        u8 cpu_type;
 732        u8 hcall_needed;
 733        u8 epr_flags; /* KVMPPC_EPR_xxx */
 734        u8 epr_needed;
 735        u8 external_oneshot;    /* clear external irq after delivery */
 736
 737        u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
 738
 739        struct hrtimer dec_timer;
 740        u64 dec_jiffies;
 741        u64 dec_expires;
 742        unsigned long pending_exceptions;
 743        u8 ceded;
 744        u8 prodded;
 745        u8 doorbell_request;
 746        u8 irq_pending; /* Used by XIVE to signal pending guest irqs */
 747        u32 last_inst;
 748
 749        struct swait_queue_head *wqp;
 750        struct kvmppc_vcore *vcore;
 751        int ret;
 752        int trap;
 753        int state;
 754        int ptid;
 755        int thread_cpu;
 756        int prev_cpu;
 757        bool timer_running;
 758        wait_queue_head_t cpu_run;
 759        struct machine_check_event mce_evt; /* Valid if trap == 0x200 */
 760
 761        struct kvm_vcpu_arch_shared *shared;
 762#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
 763        bool shared_big_endian;
 764#endif
 765        unsigned long magic_page_pa; /* phys addr to map the magic page to */
 766        unsigned long magic_page_ea; /* effect. addr to map the magic page to */
 767        bool disable_kernel_nx;
 768
 769        int irq_type;           /* one of KVM_IRQ_* */
 770        int irq_cpu_id;
 771        struct openpic *mpic;   /* KVM_IRQ_MPIC */
 772#ifdef CONFIG_KVM_XICS
 773        struct kvmppc_icp *icp; /* XICS presentation controller */
 774        struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */
 775        __be32 xive_cam_word;    /* Cooked W2 in proper endian with valid bit */
 776        u8 xive_pushed;          /* Is the VP pushed on the physical CPU ? */
 777        u8 xive_esc_on;          /* Is the escalation irq enabled ? */
 778        union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */
 779        u64 xive_esc_raddr;      /* Escalation interrupt ESB real addr */
 780        u64 xive_esc_vaddr;      /* Escalation interrupt ESB virt addr */
 781#endif
 782
 783#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 784        struct kvm_vcpu_arch_shared shregs;
 785
 786        struct mmio_hpte_cache mmio_cache;
 787        unsigned long pgfault_addr;
 788        long pgfault_index;
 789        unsigned long pgfault_hpte[2];
 790        struct mmio_hpte_cache_entry *pgfault_cache;
 791
 792        struct task_struct *run_task;
 793        struct kvm_run *kvm_run;
 794
 795        spinlock_t vpa_update_lock;
 796        struct kvmppc_vpa vpa;
 797        struct kvmppc_vpa dtl;
 798        struct dtl_entry *dtl_ptr;
 799        unsigned long dtl_index;
 800        u64 stolen_logged;
 801        struct kvmppc_vpa slb_shadow;
 802
 803        spinlock_t tbacct_lock;
 804        u64 busy_stolen;
 805        u64 busy_preempt;
 806
 807        u32 emul_inst;
 808
 809        u32 online;
 810
 811        /* For support of nested guests */
 812        struct kvm_nested_guest *nested;
 813        u32 nested_vcpu_id;
 814        gpa_t nested_io_gpr;
 815#endif
 816
 817#ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
 818        struct kvmhv_tb_accumulator *cur_activity;      /* What we're timing */
 819        u64     cur_tb_start;                   /* when it started */
 820        struct kvmhv_tb_accumulator rm_entry;   /* real-mode entry code */
 821        struct kvmhv_tb_accumulator rm_intr;    /* real-mode intr handling */
 822        struct kvmhv_tb_accumulator rm_exit;    /* real-mode exit code */
 823        struct kvmhv_tb_accumulator guest_time; /* guest execution */
 824        struct kvmhv_tb_accumulator cede_time;  /* time napping inside guest */
 825
 826        struct dentry *debugfs_dir;
 827        struct dentry *debugfs_timings;
 828#endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
 829};
 830
 831#define VCPU_FPR(vcpu, i)       (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
 832#define VCPU_VSX_FPR(vcpu, i, j)        ((vcpu)->arch.fp.fpr[i][j])
 833#define VCPU_VSX_VR(vcpu, i)            ((vcpu)->arch.vr.vr[i])
 834
 835/* Values for vcpu->arch.state */
 836#define KVMPPC_VCPU_NOTREADY            0
 837#define KVMPPC_VCPU_RUNNABLE            1
 838#define KVMPPC_VCPU_BUSY_IN_HOST        2
 839
 840/* Values for vcpu->arch.io_gpr */
 841#define KVM_MMIO_REG_MASK       0x003f
 842#define KVM_MMIO_REG_EXT_MASK   0xffc0
 843#define KVM_MMIO_REG_GPR        0x0000
 844#define KVM_MMIO_REG_FPR        0x0040
 845#define KVM_MMIO_REG_QPR        0x0080
 846#define KVM_MMIO_REG_FQPR       0x00c0
 847#define KVM_MMIO_REG_VSX        0x0100
 848#define KVM_MMIO_REG_VMX        0x0180
 849#define KVM_MMIO_REG_NESTED_GPR 0xffc0
 850
 851
 852#define __KVM_HAVE_ARCH_WQP
 853#define __KVM_HAVE_CREATE_DEVICE
 854
 855static inline void kvm_arch_hardware_disable(void) {}
 856static inline void kvm_arch_hardware_unsetup(void) {}
 857static inline void kvm_arch_sync_events(struct kvm *kvm) {}
 858static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}
 859static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
 860static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
 861static inline void kvm_arch_exit(void) {}
 862static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
 863static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
 864static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
 865
 866#endif /* __POWERPC_KVM_HOST_H__ */
 867