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

   1/*
   2 * This program is free software; you can redistribute it and/or modify
   3 * it under the terms of the GNU General Public License, version 2, as
   4 * published by the Free Software Foundation.
   5 *
   6 * This program is distributed in the hope that it will be useful,
   7 * but WITHOUT ANY WARRANTY; without even the implied warranty of
   8 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   9 * GNU General Public License for more details.
  10 *
  11 * You should have received a copy of the GNU General Public License
  12 * along with this program; if not, write to the Free Software
  13 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  14 *
  15 * Copyright IBM Corp. 2007
  16 *
  17 * Authors: Hollis Blanchard <hollisb@us.ibm.com>
  18 */
  19
  20#ifndef __POWERPC_KVM_HOST_H__
  21#define __POWERPC_KVM_HOST_H__
  22
  23#include <linux/mutex.h>
  24#include <linux/hrtimer.h>
  25#include <linux/interrupt.h>
  26#include <linux/types.h>
  27#include <linux/kvm_types.h>
  28#include <linux/threads.h>
  29#include <linux/spinlock.h>
  30#include <linux/kvm_para.h>
  31#include <linux/list.h>
  32#include <linux/atomic.h>
  33#include <asm/kvm_asm.h>
  34#include <asm/processor.h>
  35#include <asm/page.h>
  36#include <asm/cacheflush.h>
  37#include <asm/hvcall.h>
  38#include <asm/mce.h>
  39
  40#define KVM_MAX_VCPUS           NR_CPUS
  41#define KVM_MAX_VCORES          NR_CPUS
  42#define KVM_USER_MEM_SLOTS      512
  43
  44#include <asm/cputhreads.h>
  45#define KVM_MAX_VCPU_ID                (threads_per_subcore * KVM_MAX_VCORES)
  46
  47#define __KVM_HAVE_ARCH_INTC_INITIALIZED
  48
  49#define KVM_HALT_POLL_NS_DEFAULT 10000  /* 10 us */
  50
  51/* These values are internal and can be increased later */
  52#define KVM_NR_IRQCHIPS          1
  53#define KVM_IRQCHIP_NUM_PINS     256
  54
  55/* PPC-specific vcpu->requests bit members */
  56#define KVM_REQ_WATCHDOG        KVM_ARCH_REQ(0)
  57#define KVM_REQ_EPR_EXIT        KVM_ARCH_REQ(1)
  58
  59#include <linux/mmu_notifier.h>
  60
  61#define KVM_ARCH_WANT_MMU_NOTIFIER
  62
  63extern int kvm_unmap_hva_range(struct kvm *kvm,
  64                               unsigned long start, unsigned long end);
  65extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
  66extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
  67extern void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
  68
  69#define HPTEG_CACHE_NUM                 (1 << 15)
  70#define HPTEG_HASH_BITS_PTE             13
  71#define HPTEG_HASH_BITS_PTE_LONG        12
  72#define HPTEG_HASH_BITS_VPTE            13
  73#define HPTEG_HASH_BITS_VPTE_LONG       5
  74#define HPTEG_HASH_BITS_VPTE_64K        11
  75#define HPTEG_HASH_NUM_PTE              (1 << HPTEG_HASH_BITS_PTE)
  76#define HPTEG_HASH_NUM_PTE_LONG         (1 << HPTEG_HASH_BITS_PTE_LONG)
  77#define HPTEG_HASH_NUM_VPTE             (1 << HPTEG_HASH_BITS_VPTE)
  78#define HPTEG_HASH_NUM_VPTE_LONG        (1 << HPTEG_HASH_BITS_VPTE_LONG)
  79#define HPTEG_HASH_NUM_VPTE_64K         (1 << HPTEG_HASH_BITS_VPTE_64K)
  80
  81/* Physical Address Mask - allowed range of real mode RAM access */
  82#define KVM_PAM                 0x0fffffffffffffffULL
  83
  84struct lppaca;
  85struct slb_shadow;
  86struct dtl_entry;
  87
  88struct kvmppc_vcpu_book3s;
  89struct kvmppc_book3s_shadow_vcpu;
  90
  91struct kvm_vm_stat {
  92        ulong remote_tlb_flush;
  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
 193struct kvmppc_spapr_tce_table {
 194        struct list_head list;
 195        struct kvm *kvm;
 196        u64 liobn;
 197        struct rcu_head rcu;
 198        u32 page_shift;
 199        u64 offset;             /* in pages */
 200        u64 size;               /* window size in pages */
 201        struct list_head iommu_tables;
 202        struct page *pages[0];
 203};
 204
 205/* XICS components, defined in book3s_xics.c */
 206struct kvmppc_xics;
 207struct kvmppc_icp;
 208extern struct kvm_device_ops kvm_xics_ops;
 209
 210/* XIVE components, defined in book3s_xive.c */
 211struct kvmppc_xive;
 212struct kvmppc_xive_vcpu;
 213extern struct kvm_device_ops kvm_xive_ops;
 214
 215struct kvmppc_passthru_irqmap;
 216
 217/*
 218 * The reverse mapping array has one entry for each HPTE,
 219 * which stores the guest's view of the second word of the HPTE
 220 * (including the guest physical address of the mapping),
 221 * plus forward and backward pointers in a doubly-linked ring
 222 * of HPTEs that map the same host page.  The pointers in this
 223 * ring are 32-bit HPTE indexes, to save space.
 224 */
 225struct revmap_entry {
 226        unsigned long guest_rpte;
 227        unsigned int forw, back;
 228};
 229
 230/*
 231 * We use the top bit of each memslot->arch.rmap entry as a lock bit,
 232 * and bit 32 as a present flag.  The bottom 32 bits are the
 233 * index in the guest HPT of a HPTE that points to the page.
 234 */
 235#define KVMPPC_RMAP_LOCK_BIT    63
 236#define KVMPPC_RMAP_RC_SHIFT    32
 237#define KVMPPC_RMAP_REFERENCED  (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
 238#define KVMPPC_RMAP_PRESENT     0x100000000ul
 239#define KVMPPC_RMAP_INDEX       0xfffffffful
 240
 241struct kvm_arch_memory_slot {
 242#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 243        unsigned long *rmap;
 244#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 245};
 246
 247struct kvm_hpt_info {
 248        /* Host virtual (linear mapping) address of guest HPT */
 249        unsigned long virt;
 250        /* Array of reverse mapping entries for each guest HPTE */
 251        struct revmap_entry *rev;
 252        /* Guest HPT size is 2**(order) bytes */
 253        u32 order;
 254        /* 1 if HPT allocated with CMA, 0 otherwise */
 255        int cma;
 256};
 257
 258struct kvm_resize_hpt;
 259
 260struct kvm_arch {
 261        unsigned int lpid;
 262        unsigned int smt_mode;          /* # vcpus per virtual core */
 263        unsigned int emul_smt_mode;     /* emualted SMT mode, on P9 */
 264#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 265        unsigned int tlb_sets;
 266        struct kvm_hpt_info hpt;
 267        atomic64_t mmio_update;
 268        unsigned int host_lpid;
 269        unsigned long host_lpcr;
 270        unsigned long sdr1;
 271        unsigned long host_sdr1;
 272        unsigned long lpcr;
 273        unsigned long vrma_slb_v;
 274        int mmu_ready;
 275        atomic_t vcpus_running;
 276        u32 online_vcores;
 277        atomic_t hpte_mod_interest;
 278        cpumask_t need_tlb_flush;
 279        cpumask_t cpu_in_guest;
 280        u8 radix;
 281        u8 fwnmi_enabled;
 282        bool threads_indep;
 283        pgd_t *pgtable;
 284        u64 process_table;
 285        struct dentry *debugfs_dir;
 286        struct dentry *htab_dentry;
 287        struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */
 288#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 289#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 290        struct mutex hpt_mutex;
 291#endif
 292#ifdef CONFIG_PPC_BOOK3S_64
 293        struct list_head spapr_tce_tables;
 294        struct list_head rtas_tokens;
 295        DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
 296#endif
 297#ifdef CONFIG_KVM_MPIC
 298        struct openpic *mpic;
 299#endif
 300#ifdef CONFIG_KVM_XICS
 301        struct kvmppc_xics *xics;
 302        struct kvmppc_xive *xive;
 303        struct kvmppc_passthru_irqmap *pimap;
 304#endif
 305        struct kvmppc_ops *kvm_ops;
 306#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 307        /* This array can grow quite large, keep it at the end */
 308        struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
 309#endif
 310};
 311
 312#define VCORE_ENTRY_MAP(vc)     ((vc)->entry_exit_map & 0xff)
 313#define VCORE_EXIT_MAP(vc)      ((vc)->entry_exit_map >> 8)
 314#define VCORE_IS_EXITING(vc)    (VCORE_EXIT_MAP(vc) != 0)
 315
 316/* This bit is used when a vcore exit is triggered from outside the vcore */
 317#define VCORE_EXIT_REQ          0x10000
 318
 319/*
 320 * Values for vcore_state.
 321 * Note that these are arranged such that lower values
 322 * (< VCORE_SLEEPING) don't require stolen time accounting
 323 * on load/unload, and higher values do.
 324 */
 325#define VCORE_INACTIVE  0
 326#define VCORE_PREEMPT   1
 327#define VCORE_PIGGYBACK 2
 328#define VCORE_SLEEPING  3
 329#define VCORE_RUNNING   4
 330#define VCORE_EXITING   5
 331#define VCORE_POLLING   6
 332
 333/*
 334 * Struct used to manage memory for a virtual processor area
 335 * registered by a PAPR guest.  There are three types of area
 336 * that a guest can register.
 337 */
 338struct kvmppc_vpa {
 339        unsigned long gpa;      /* Current guest phys addr */
 340        void *pinned_addr;      /* Address in kernel linear mapping */
 341        void *pinned_end;       /* End of region */
 342        unsigned long next_gpa; /* Guest phys addr for update */
 343        unsigned long len;      /* Number of bytes required */
 344        u8 update_pending;      /* 1 => update pinned_addr from next_gpa */
 345        bool dirty;             /* true => area has been modified by kernel */
 346};
 347
 348struct kvmppc_pte {
 349        ulong eaddr;
 350        u64 vpage;
 351        ulong raddr;
 352        bool may_read           : 1;
 353        bool may_write          : 1;
 354        bool may_execute        : 1;
 355        unsigned long wimg;
 356        u8 page_size;           /* MMU_PAGE_xxx */
 357};
 358
 359struct kvmppc_mmu {
 360        /* book3s_64 only */
 361        void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
 362        u64  (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
 363        u64  (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
 364        void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
 365        void (*slbia)(struct kvm_vcpu *vcpu);
 366        /* book3s */
 367        void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
 368        u32  (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
 369        int  (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
 370                      struct kvmppc_pte *pte, bool data, bool iswrite);
 371        void (*reset_msr)(struct kvm_vcpu *vcpu);
 372        void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
 373        int  (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
 374        u64  (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
 375        bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
 376};
 377
 378struct kvmppc_slb {
 379        u64 esid;
 380        u64 vsid;
 381        u64 orige;
 382        u64 origv;
 383        bool valid      : 1;
 384        bool Ks         : 1;
 385        bool Kp         : 1;
 386        bool nx         : 1;
 387        bool large      : 1;    /* PTEs are 16MB */
 388        bool tb         : 1;    /* 1TB segment */
 389        bool class      : 1;
 390        u8 base_page_size;      /* MMU_PAGE_xxx */
 391};
 392
 393/* Struct used to accumulate timing information in HV real mode code */
 394struct kvmhv_tb_accumulator {
 395        u64     seqcount;       /* used to synchronize access, also count * 2 */
 396        u64     tb_total;       /* total time in timebase ticks */
 397        u64     tb_min;         /* min time */
 398        u64     tb_max;         /* max time */
 399};
 400
 401#ifdef CONFIG_PPC_BOOK3S_64
 402struct kvmppc_irq_map {
 403        u32     r_hwirq;
 404        u32     v_hwirq;
 405        struct irq_desc *desc;
 406};
 407
 408#define KVMPPC_PIRQ_MAPPED      1024
 409struct kvmppc_passthru_irqmap {
 410        int n_mapped;
 411        struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED];
 412};
 413#endif
 414
 415# ifdef CONFIG_PPC_FSL_BOOK3E
 416#define KVMPPC_BOOKE_IAC_NUM    2
 417#define KVMPPC_BOOKE_DAC_NUM    2
 418# else
 419#define KVMPPC_BOOKE_IAC_NUM    4
 420#define KVMPPC_BOOKE_DAC_NUM    2
 421# endif
 422#define KVMPPC_BOOKE_MAX_IAC    4
 423#define KVMPPC_BOOKE_MAX_DAC    2
 424
 425/* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
 426#define KVMPPC_EPR_NONE         0 /* EPR not supported */
 427#define KVMPPC_EPR_USER         1 /* exit to userspace to fill EPR */
 428#define KVMPPC_EPR_KERNEL       2 /* in-kernel irqchip */
 429
 430#define KVMPPC_IRQ_DEFAULT      0
 431#define KVMPPC_IRQ_MPIC         1
 432#define KVMPPC_IRQ_XICS         2 /* Includes a XIVE option */
 433
 434#define MMIO_HPTE_CACHE_SIZE    4
 435
 436struct mmio_hpte_cache_entry {
 437        unsigned long hpte_v;
 438        unsigned long hpte_r;
 439        unsigned long rpte;
 440        unsigned long pte_index;
 441        unsigned long eaddr;
 442        unsigned long slb_v;
 443        long mmio_update;
 444        unsigned int slb_base_pshift;
 445};
 446
 447struct mmio_hpte_cache {
 448        struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE];
 449        unsigned int index;
 450};
 451
 452#define KVMPPC_VSX_COPY_NONE            0
 453#define KVMPPC_VSX_COPY_WORD            1
 454#define KVMPPC_VSX_COPY_DWORD           2
 455#define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP 3
 456#define KVMPPC_VSX_COPY_WORD_LOAD_DUMP  4
 457
 458#define KVMPPC_VMX_COPY_BYTE            8
 459#define KVMPPC_VMX_COPY_HWORD           9
 460#define KVMPPC_VMX_COPY_WORD            10
 461#define KVMPPC_VMX_COPY_DWORD           11
 462
 463struct openpic;
 464
 465/* W0 and W1 of a XIVE thread management context */
 466union xive_tma_w01 {
 467        struct {
 468                u8      nsr;
 469                u8      cppr;
 470                u8      ipb;
 471                u8      lsmfb;
 472                u8      ack;
 473                u8      inc;
 474                u8      age;
 475                u8      pipr;
 476        };
 477        __be64 w01;
 478};
 479
 480struct kvm_vcpu_arch {
 481        ulong host_stack;
 482        u32 host_pid;
 483#ifdef CONFIG_PPC_BOOK3S
 484        struct kvmppc_slb slb[64];
 485        int slb_max;            /* 1 + index of last valid entry in slb[] */
 486        int slb_nr;             /* total number of entries in SLB */
 487        struct kvmppc_mmu mmu;
 488        struct kvmppc_vcpu_book3s *book3s;
 489#endif
 490#ifdef CONFIG_PPC_BOOK3S_32
 491        struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
 492#endif
 493
 494        struct pt_regs regs;
 495
 496        struct thread_fp_state fp;
 497
 498#ifdef CONFIG_SPE
 499        ulong evr[32];
 500        ulong spefscr;
 501        ulong host_spefscr;
 502        u64 acc;
 503#endif
 504#ifdef CONFIG_ALTIVEC
 505        struct thread_vr_state vr;
 506#endif
 507
 508#ifdef CONFIG_KVM_BOOKE_HV
 509        u32 host_mas4;
 510        u32 host_mas6;
 511        u32 shadow_epcr;
 512        u32 shadow_msrp;
 513        u32 eplc;
 514        u32 epsc;
 515        u32 oldpir;
 516#endif
 517
 518#if defined(CONFIG_BOOKE)
 519#if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
 520        u32 epcr;
 521#endif
 522#endif
 523
 524#ifdef CONFIG_PPC_BOOK3S
 525        /* For Gekko paired singles */
 526        u32 qpr[32];
 527#endif
 528
 529#ifdef CONFIG_PPC_BOOK3S
 530        ulong tar;
 531#endif
 532
 533        u32 cr;
 534
 535#ifdef CONFIG_PPC_BOOK3S
 536        ulong hflags;
 537        ulong guest_owned_ext;
 538        ulong purr;
 539        ulong spurr;
 540        ulong ic;
 541        ulong dscr;
 542        ulong amr;
 543        ulong uamor;
 544        ulong iamr;
 545        u32 ctrl;
 546        u32 dabrx;
 547        ulong dabr;
 548        ulong dawr;
 549        ulong dawrx;
 550        ulong ciabr;
 551        ulong cfar;
 552        ulong ppr;
 553        u32 pspb;
 554        ulong fscr;
 555        ulong shadow_fscr;
 556        ulong ebbhr;
 557        ulong ebbrr;
 558        ulong bescr;
 559        ulong csigr;
 560        ulong tacr;
 561        ulong tcscr;
 562        ulong acop;
 563        ulong wort;
 564        ulong tid;
 565        ulong psscr;
 566        ulong hfscr;
 567        ulong shadow_srr1;
 568#endif
 569        u32 vrsave; /* also USPRG0 */
 570        u32 mmucr;
 571        /* shadow_msr is unused for BookE HV */
 572        ulong shadow_msr;
 573        ulong csrr0;
 574        ulong csrr1;
 575        ulong dsrr0;
 576        ulong dsrr1;
 577        ulong mcsrr0;
 578        ulong mcsrr1;
 579        ulong mcsr;
 580        ulong dec;
 581#ifdef CONFIG_BOOKE
 582        u32 decar;
 583#endif
 584        /* Time base value when we entered the guest */
 585        u64 entry_tb;
 586        u64 entry_vtb;
 587        u64 entry_ic;
 588        u32 tcr;
 589        ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
 590        u32 ivor[64];
 591        ulong ivpr;
 592        u32 pvr;
 593
 594        u32 shadow_pid;
 595        u32 shadow_pid1;
 596        u32 pid;
 597        u32 swap_pid;
 598
 599        u32 ccr0;
 600        u32 ccr1;
 601        u32 dbsr;
 602
 603        u64 mmcr[5];
 604        u32 pmc[8];
 605        u32 spmc[2];
 606        u64 siar;
 607        u64 sdar;
 608        u64 sier;
 609#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 610        u64 tfhar;
 611        u64 texasr;
 612        u64 tfiar;
 613        u64 orig_texasr;
 614
 615        u32 cr_tm;
 616        u64 xer_tm;
 617        u64 lr_tm;
 618        u64 ctr_tm;
 619        u64 amr_tm;
 620        u64 ppr_tm;
 621        u64 dscr_tm;
 622        u64 tar_tm;
 623
 624        ulong gpr_tm[32];
 625
 626        struct thread_fp_state fp_tm;
 627
 628        struct thread_vr_state vr_tm;
 629        u32 vrsave_tm; /* also USPRG0 */
 630#endif
 631
 632#ifdef CONFIG_KVM_EXIT_TIMING
 633        struct mutex exit_timing_lock;
 634        struct kvmppc_exit_timing timing_exit;
 635        struct kvmppc_exit_timing timing_last_enter;
 636        u32 last_exit_type;
 637        u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
 638        u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 639        u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 640        u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 641        u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 642        u64 timing_last_exit;
 643        struct dentry *debugfs_exit_timing;
 644#endif
 645
 646#ifdef CONFIG_PPC_BOOK3S
 647        ulong fault_dar;
 648        u32 fault_dsisr;
 649        unsigned long intr_msr;
 650        ulong fault_gpa;        /* guest real address of page fault (POWER9) */
 651#endif
 652
 653#ifdef CONFIG_BOOKE
 654        ulong fault_dear;
 655        ulong fault_esr;
 656        ulong queued_dear;
 657        ulong queued_esr;
 658        spinlock_t wdt_lock;
 659        struct timer_list wdt_timer;
 660        u32 tlbcfg[4];
 661        u32 tlbps[4];
 662        u32 mmucfg;
 663        u32 eptcfg;
 664        u32 epr;
 665        u64 sprg9;
 666        u32 pwrmgtcr0;
 667        u32 crit_save;
 668        /* guest debug registers*/
 669        struct debug_reg dbg_reg;
 670#endif
 671        gpa_t paddr_accessed;
 672        gva_t vaddr_accessed;
 673        pgd_t *pgdir;
 674
 675        u8 io_gpr; /* GPR used as IO source/target */
 676        u8 mmio_host_swabbed;
 677        u8 mmio_sign_extend;
 678        /* conversion between single and double precision */
 679        u8 mmio_sp64_extend;
 680        /*
 681         * Number of simulations for vsx.
 682         * If we use 2*8bytes to simulate 1*16bytes,
 683         * then the number should be 2 and
 684         * mmio_copy_type=KVMPPC_VSX_COPY_DWORD.
 685         * If we use 4*4bytes to simulate 1*16bytes,
 686         * the number should be 4 and
 687         * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD.
 688         */
 689        u8 mmio_vsx_copy_nums;
 690        u8 mmio_vsx_offset;
 691        u8 mmio_vsx_tx_sx_enabled;
 692        u8 mmio_vmx_copy_nums;
 693        u8 mmio_vmx_offset;
 694        u8 mmio_copy_type;
 695        u8 osi_needed;
 696        u8 osi_enabled;
 697        u8 papr_enabled;
 698        u8 watchdog_enabled;
 699        u8 sane;
 700        u8 cpu_type;
 701        u8 hcall_needed;
 702        u8 epr_flags; /* KVMPPC_EPR_xxx */
 703        u8 epr_needed;
 704
 705        u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
 706
 707        struct hrtimer dec_timer;
 708        u64 dec_jiffies;
 709        u64 dec_expires;
 710        unsigned long pending_exceptions;
 711        u8 ceded;
 712        u8 prodded;
 713        u8 doorbell_request;
 714        u8 irq_pending; /* Used by XIVE to signal pending guest irqs */
 715        u32 last_inst;
 716
 717        struct swait_queue_head *wqp;
 718        struct kvmppc_vcore *vcore;
 719        int ret;
 720        int trap;
 721        int state;
 722        int ptid;
 723        int thread_cpu;
 724        int prev_cpu;
 725        bool timer_running;
 726        wait_queue_head_t cpu_run;
 727        struct machine_check_event mce_evt; /* Valid if trap == 0x200 */
 728
 729        struct kvm_vcpu_arch_shared *shared;
 730#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
 731        bool shared_big_endian;
 732#endif
 733        unsigned long magic_page_pa; /* phys addr to map the magic page to */
 734        unsigned long magic_page_ea; /* effect. addr to map the magic page to */
 735        bool disable_kernel_nx;
 736
 737        int irq_type;           /* one of KVM_IRQ_* */
 738        int irq_cpu_id;
 739        struct openpic *mpic;   /* KVM_IRQ_MPIC */
 740#ifdef CONFIG_KVM_XICS
 741        struct kvmppc_icp *icp; /* XICS presentation controller */
 742        struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */
 743        __be32 xive_cam_word;    /* Cooked W2 in proper endian with valid bit */
 744        u8 xive_pushed;          /* Is the VP pushed on the physical CPU ? */
 745        u8 xive_esc_on;          /* Is the escalation irq enabled ? */
 746        union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */
 747        u64 xive_esc_raddr;      /* Escalation interrupt ESB real addr */
 748        u64 xive_esc_vaddr;      /* Escalation interrupt ESB virt addr */
 749#endif
 750
 751#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 752        struct kvm_vcpu_arch_shared shregs;
 753
 754        struct mmio_hpte_cache mmio_cache;
 755        unsigned long pgfault_addr;
 756        long pgfault_index;
 757        unsigned long pgfault_hpte[2];
 758        struct mmio_hpte_cache_entry *pgfault_cache;
 759
 760        struct task_struct *run_task;
 761        struct kvm_run *kvm_run;
 762
 763        spinlock_t vpa_update_lock;
 764        struct kvmppc_vpa vpa;
 765        struct kvmppc_vpa dtl;
 766        struct dtl_entry *dtl_ptr;
 767        unsigned long dtl_index;
 768        u64 stolen_logged;
 769        struct kvmppc_vpa slb_shadow;
 770
 771        spinlock_t tbacct_lock;
 772        u64 busy_stolen;
 773        u64 busy_preempt;
 774
 775        u32 emul_inst;
 776
 777        u32 online;
 778#endif
 779
 780#ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
 781        struct kvmhv_tb_accumulator *cur_activity;      /* What we're timing */
 782        u64     cur_tb_start;                   /* when it started */
 783        struct kvmhv_tb_accumulator rm_entry;   /* real-mode entry code */
 784        struct kvmhv_tb_accumulator rm_intr;    /* real-mode intr handling */
 785        struct kvmhv_tb_accumulator rm_exit;    /* real-mode exit code */
 786        struct kvmhv_tb_accumulator guest_time; /* guest execution */
 787        struct kvmhv_tb_accumulator cede_time;  /* time napping inside guest */
 788
 789        struct dentry *debugfs_dir;
 790        struct dentry *debugfs_timings;
 791#endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
 792};
 793
 794#define VCPU_FPR(vcpu, i)       (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
 795#define VCPU_VSX_FPR(vcpu, i, j)        ((vcpu)->arch.fp.fpr[i][j])
 796#define VCPU_VSX_VR(vcpu, i)            ((vcpu)->arch.vr.vr[i])
 797
 798/* Values for vcpu->arch.state */
 799#define KVMPPC_VCPU_NOTREADY            0
 800#define KVMPPC_VCPU_RUNNABLE            1
 801#define KVMPPC_VCPU_BUSY_IN_HOST        2
 802
 803/* Values for vcpu->arch.io_gpr */
 804#define KVM_MMIO_REG_MASK       0x001f
 805#define KVM_MMIO_REG_EXT_MASK   0xffe0
 806#define KVM_MMIO_REG_GPR        0x0000
 807#define KVM_MMIO_REG_FPR        0x0020
 808#define KVM_MMIO_REG_QPR        0x0040
 809#define KVM_MMIO_REG_FQPR       0x0060
 810#define KVM_MMIO_REG_VSX        0x0080
 811#define KVM_MMIO_REG_VMX        0x00c0
 812
 813#define __KVM_HAVE_ARCH_WQP
 814#define __KVM_HAVE_CREATE_DEVICE
 815
 816static inline void kvm_arch_hardware_disable(void) {}
 817static inline void kvm_arch_hardware_unsetup(void) {}
 818static inline void kvm_arch_sync_events(struct kvm *kvm) {}
 819static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {}
 820static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
 821static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
 822static inline void kvm_arch_exit(void) {}
 823static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
 824static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
 825static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
 826
 827#endif /* __POWERPC_KVM_HOST_H__ */
 828