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
  39#define KVM_MAX_VCPUS           NR_CPUS
  40#define KVM_MAX_VCORES          NR_CPUS
  41#define KVM_USER_MEM_SLOTS      512
  42
  43#ifdef CONFIG_KVM_MMIO
  44#define KVM_COALESCED_MMIO_PAGE_OFFSET 1
  45#endif
  46#define KVM_HALT_POLL_NS_DEFAULT 500000
  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           8
  54#define KVM_REQ_EPR_EXIT           9
  55
  56#include <linux/mmu_notifier.h>
  57
  58#define KVM_ARCH_WANT_MMU_NOTIFIER
  59
  60extern int kvm_unmap_hva(struct kvm *kvm, unsigned long hva);
  61extern int kvm_unmap_hva_range(struct kvm *kvm,
  62                               unsigned long start, unsigned long end);
  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 void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
  66
  67static inline void kvm_arch_mmu_notifier_invalidate_page(struct kvm *kvm,
  68                                                         unsigned long address)
  69{
  70}
  71
  72#define HPTEG_CACHE_NUM                 (1 << 15)
  73#define HPTEG_HASH_BITS_PTE             13
  74#define HPTEG_HASH_BITS_PTE_LONG        12
  75#define HPTEG_HASH_BITS_VPTE            13
  76#define HPTEG_HASH_BITS_VPTE_LONG       5
  77#define HPTEG_HASH_BITS_VPTE_64K        11
  78#define HPTEG_HASH_NUM_PTE              (1 << HPTEG_HASH_BITS_PTE)
  79#define HPTEG_HASH_NUM_PTE_LONG         (1 << HPTEG_HASH_BITS_PTE_LONG)
  80#define HPTEG_HASH_NUM_VPTE             (1 << HPTEG_HASH_BITS_VPTE)
  81#define HPTEG_HASH_NUM_VPTE_LONG        (1 << HPTEG_HASH_BITS_VPTE_LONG)
  82#define HPTEG_HASH_NUM_VPTE_64K         (1 << HPTEG_HASH_BITS_VPTE_64K)
  83
  84/* Physical Address Mask - allowed range of real mode RAM access */
  85#define KVM_PAM                 0x0fffffffffffffffULL
  86
  87struct lppaca;
  88struct slb_shadow;
  89struct dtl_entry;
  90
  91struct kvmppc_vcpu_book3s;
  92struct kvmppc_book3s_shadow_vcpu;
  93
  94struct kvm_vm_stat {
  95        u32 remote_tlb_flush;
  96};
  97
  98struct kvm_vcpu_stat {
  99        u32 sum_exits;
 100        u32 mmio_exits;
 101        u32 signal_exits;
 102        u32 light_exits;
 103        /* Account for special types of light exits: */
 104        u32 itlb_real_miss_exits;
 105        u32 itlb_virt_miss_exits;
 106        u32 dtlb_real_miss_exits;
 107        u32 dtlb_virt_miss_exits;
 108        u32 syscall_exits;
 109        u32 isi_exits;
 110        u32 dsi_exits;
 111        u32 emulated_inst_exits;
 112        u32 dec_exits;
 113        u32 ext_intr_exits;
 114        u32 halt_successful_poll;
 115        u32 halt_attempted_poll;
 116        u32 halt_wakeup;
 117        u32 dbell_exits;
 118        u32 gdbell_exits;
 119        u32 ld;
 120        u32 st;
 121#ifdef CONFIG_PPC_BOOK3S
 122        u32 pf_storage;
 123        u32 pf_instruc;
 124        u32 sp_storage;
 125        u32 sp_instruc;
 126        u32 queue_intr;
 127        u32 ld_slow;
 128        u32 st_slow;
 129#endif
 130};
 131
 132enum kvm_exit_types {
 133        MMIO_EXITS,
 134        SIGNAL_EXITS,
 135        ITLB_REAL_MISS_EXITS,
 136        ITLB_VIRT_MISS_EXITS,
 137        DTLB_REAL_MISS_EXITS,
 138        DTLB_VIRT_MISS_EXITS,
 139        SYSCALL_EXITS,
 140        ISI_EXITS,
 141        DSI_EXITS,
 142        EMULATED_INST_EXITS,
 143        EMULATED_MTMSRWE_EXITS,
 144        EMULATED_WRTEE_EXITS,
 145        EMULATED_MTSPR_EXITS,
 146        EMULATED_MFSPR_EXITS,
 147        EMULATED_MTMSR_EXITS,
 148        EMULATED_MFMSR_EXITS,
 149        EMULATED_TLBSX_EXITS,
 150        EMULATED_TLBWE_EXITS,
 151        EMULATED_RFI_EXITS,
 152        EMULATED_RFCI_EXITS,
 153        EMULATED_RFDI_EXITS,
 154        DEC_EXITS,
 155        EXT_INTR_EXITS,
 156        HALT_WAKEUP,
 157        USR_PR_INST,
 158        FP_UNAVAIL,
 159        DEBUG_EXITS,
 160        TIMEINGUEST,
 161        DBELL_EXITS,
 162        GDBELL_EXITS,
 163        __NUMBER_OF_KVM_EXIT_TYPES
 164};
 165
 166/* allow access to big endian 32bit upper/lower parts and 64bit var */
 167struct kvmppc_exit_timing {
 168        union {
 169                u64 tv64;
 170                struct {
 171                        u32 tbu, tbl;
 172                } tv32;
 173        };
 174};
 175
 176struct kvmppc_pginfo {
 177        unsigned long pfn;
 178        atomic_t refcnt;
 179};
 180
 181struct kvmppc_spapr_tce_table {
 182        struct list_head list;
 183        struct kvm *kvm;
 184        u64 liobn;
 185        u32 window_size;
 186        struct page *pages[0];
 187};
 188
 189/* XICS components, defined in book3s_xics.c */
 190struct kvmppc_xics;
 191struct kvmppc_icp;
 192
 193/*
 194 * The reverse mapping array has one entry for each HPTE,
 195 * which stores the guest's view of the second word of the HPTE
 196 * (including the guest physical address of the mapping),
 197 * plus forward and backward pointers in a doubly-linked ring
 198 * of HPTEs that map the same host page.  The pointers in this
 199 * ring are 32-bit HPTE indexes, to save space.
 200 */
 201struct revmap_entry {
 202        unsigned long guest_rpte;
 203        unsigned int forw, back;
 204};
 205
 206/*
 207 * We use the top bit of each memslot->arch.rmap entry as a lock bit,
 208 * and bit 32 as a present flag.  The bottom 32 bits are the
 209 * index in the guest HPT of a HPTE that points to the page.
 210 */
 211#define KVMPPC_RMAP_LOCK_BIT    63
 212#define KVMPPC_RMAP_RC_SHIFT    32
 213#define KVMPPC_RMAP_CHG_SHIFT   48
 214#define KVMPPC_RMAP_REFERENCED  (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
 215#define KVMPPC_RMAP_CHANGED     (HPTE_R_C << KVMPPC_RMAP_RC_SHIFT)
 216#define KVMPPC_RMAP_CHG_ORDER   (0x3ful << KVMPPC_RMAP_CHG_SHIFT)
 217#define KVMPPC_RMAP_PRESENT     0x100000000ul
 218#define KVMPPC_RMAP_INDEX       0xfffffffful
 219
 220struct kvm_arch_memory_slot {
 221#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 222        unsigned long *rmap;
 223#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 224};
 225
 226struct kvm_arch {
 227        unsigned int lpid;
 228#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 229        unsigned long hpt_virt;
 230        struct revmap_entry *revmap;
 231        unsigned int host_lpid;
 232        unsigned long host_lpcr;
 233        unsigned long sdr1;
 234        unsigned long host_sdr1;
 235        int tlbie_lock;
 236        unsigned long lpcr;
 237        unsigned long vrma_slb_v;
 238        int hpte_setup_done;
 239        u32 hpt_order;
 240        atomic_t vcpus_running;
 241        u32 online_vcores;
 242        unsigned long hpt_npte;
 243        unsigned long hpt_mask;
 244        atomic_t hpte_mod_interest;
 245        cpumask_t need_tlb_flush;
 246        int hpt_cma_alloc;
 247        struct dentry *debugfs_dir;
 248        struct dentry *htab_dentry;
 249#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 250#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 251        struct mutex hpt_mutex;
 252#endif
 253#ifdef CONFIG_PPC_BOOK3S_64
 254        struct list_head spapr_tce_tables;
 255        struct list_head rtas_tokens;
 256        DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
 257#endif
 258#ifdef CONFIG_KVM_MPIC
 259        struct openpic *mpic;
 260#endif
 261#ifdef CONFIG_KVM_XICS
 262        struct kvmppc_xics *xics;
 263#endif
 264        struct kvmppc_ops *kvm_ops;
 265#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 266        /* This array can grow quite large, keep it at the end */
 267        struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
 268#endif
 269};
 270
 271/*
 272 * Struct for a virtual core.
 273 * Note: entry_exit_map combines a bitmap of threads that have entered
 274 * in the bottom 8 bits and a bitmap of threads that have exited in the
 275 * next 8 bits.  This is so that we can atomically set the entry bit
 276 * iff the exit map is 0 without taking a lock.
 277 */
 278struct kvmppc_vcore {
 279        int n_runnable;
 280        int num_threads;
 281        int entry_exit_map;
 282        int napping_threads;
 283        int first_vcpuid;
 284        u16 pcpu;
 285        u16 last_cpu;
 286        u8 vcore_state;
 287        u8 in_guest;
 288        struct kvmppc_vcore *master_vcore;
 289        struct list_head runnable_threads;
 290        struct list_head preempt_list;
 291        spinlock_t lock;
 292        wait_queue_head_t wq;
 293        spinlock_t stoltb_lock; /* protects stolen_tb and preempt_tb */
 294        u64 stolen_tb;
 295        u64 preempt_tb;
 296        struct kvm_vcpu *runner;
 297        struct kvm *kvm;
 298        u64 tb_offset;          /* guest timebase - host timebase */
 299        ulong lpcr;
 300        u32 arch_compat;
 301        ulong pcr;
 302        ulong dpdes;            /* doorbell state (POWER8) */
 303        ulong conferring_threads;
 304};
 305
 306#define VCORE_ENTRY_MAP(vc)     ((vc)->entry_exit_map & 0xff)
 307#define VCORE_EXIT_MAP(vc)      ((vc)->entry_exit_map >> 8)
 308#define VCORE_IS_EXITING(vc)    (VCORE_EXIT_MAP(vc) != 0)
 309
 310/* This bit is used when a vcore exit is triggered from outside the vcore */
 311#define VCORE_EXIT_REQ          0x10000
 312
 313/*
 314 * Values for vcore_state.
 315 * Note that these are arranged such that lower values
 316 * (< VCORE_SLEEPING) don't require stolen time accounting
 317 * on load/unload, and higher values do.
 318 */
 319#define VCORE_INACTIVE  0
 320#define VCORE_PREEMPT   1
 321#define VCORE_PIGGYBACK 2
 322#define VCORE_SLEEPING  3
 323#define VCORE_RUNNING   4
 324#define VCORE_EXITING   5
 325
 326/*
 327 * Struct used to manage memory for a virtual processor area
 328 * registered by a PAPR guest.  There are three types of area
 329 * that a guest can register.
 330 */
 331struct kvmppc_vpa {
 332        unsigned long gpa;      /* Current guest phys addr */
 333        void *pinned_addr;      /* Address in kernel linear mapping */
 334        void *pinned_end;       /* End of region */
 335        unsigned long next_gpa; /* Guest phys addr for update */
 336        unsigned long len;      /* Number of bytes required */
 337        u8 update_pending;      /* 1 => update pinned_addr from next_gpa */
 338        bool dirty;             /* true => area has been modified by kernel */
 339};
 340
 341struct kvmppc_pte {
 342        ulong eaddr;
 343        u64 vpage;
 344        ulong raddr;
 345        bool may_read           : 1;
 346        bool may_write          : 1;
 347        bool may_execute        : 1;
 348        u8 page_size;           /* MMU_PAGE_xxx */
 349};
 350
 351struct kvmppc_mmu {
 352        /* book3s_64 only */
 353        void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
 354        u64  (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
 355        u64  (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
 356        void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
 357        void (*slbia)(struct kvm_vcpu *vcpu);
 358        /* book3s */
 359        void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
 360        u32  (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
 361        int  (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
 362                      struct kvmppc_pte *pte, bool data, bool iswrite);
 363        void (*reset_msr)(struct kvm_vcpu *vcpu);
 364        void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
 365        int  (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
 366        u64  (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
 367        bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
 368};
 369
 370struct kvmppc_slb {
 371        u64 esid;
 372        u64 vsid;
 373        u64 orige;
 374        u64 origv;
 375        bool valid      : 1;
 376        bool Ks         : 1;
 377        bool Kp         : 1;
 378        bool nx         : 1;
 379        bool large      : 1;    /* PTEs are 16MB */
 380        bool tb         : 1;    /* 1TB segment */
 381        bool class      : 1;
 382        u8 base_page_size;      /* MMU_PAGE_xxx */
 383};
 384
 385/* Struct used to accumulate timing information in HV real mode code */
 386struct kvmhv_tb_accumulator {
 387        u64     seqcount;       /* used to synchronize access, also count * 2 */
 388        u64     tb_total;       /* total time in timebase ticks */
 389        u64     tb_min;         /* min time */
 390        u64     tb_max;         /* max time */
 391};
 392
 393# ifdef CONFIG_PPC_FSL_BOOK3E
 394#define KVMPPC_BOOKE_IAC_NUM    2
 395#define KVMPPC_BOOKE_DAC_NUM    2
 396# else
 397#define KVMPPC_BOOKE_IAC_NUM    4
 398#define KVMPPC_BOOKE_DAC_NUM    2
 399# endif
 400#define KVMPPC_BOOKE_MAX_IAC    4
 401#define KVMPPC_BOOKE_MAX_DAC    2
 402
 403/* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
 404#define KVMPPC_EPR_NONE         0 /* EPR not supported */
 405#define KVMPPC_EPR_USER         1 /* exit to userspace to fill EPR */
 406#define KVMPPC_EPR_KERNEL       2 /* in-kernel irqchip */
 407
 408#define KVMPPC_IRQ_DEFAULT      0
 409#define KVMPPC_IRQ_MPIC         1
 410#define KVMPPC_IRQ_XICS         2
 411
 412struct openpic;
 413
 414struct kvm_vcpu_arch {
 415        ulong host_stack;
 416        u32 host_pid;
 417#ifdef CONFIG_PPC_BOOK3S
 418        struct kvmppc_slb slb[64];
 419        int slb_max;            /* 1 + index of last valid entry in slb[] */
 420        int slb_nr;             /* total number of entries in SLB */
 421        struct kvmppc_mmu mmu;
 422        struct kvmppc_vcpu_book3s *book3s;
 423#endif
 424#ifdef CONFIG_PPC_BOOK3S_32
 425        struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
 426#endif
 427
 428        ulong gpr[32];
 429
 430        struct thread_fp_state fp;
 431
 432#ifdef CONFIG_SPE
 433        ulong evr[32];
 434        ulong spefscr;
 435        ulong host_spefscr;
 436        u64 acc;
 437#endif
 438#ifdef CONFIG_ALTIVEC
 439        struct thread_vr_state vr;
 440#endif
 441
 442#ifdef CONFIG_KVM_BOOKE_HV
 443        u32 host_mas4;
 444        u32 host_mas6;
 445        u32 shadow_epcr;
 446        u32 shadow_msrp;
 447        u32 eplc;
 448        u32 epsc;
 449        u32 oldpir;
 450#endif
 451
 452#if defined(CONFIG_BOOKE)
 453#if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
 454        u32 epcr;
 455#endif
 456#endif
 457
 458#ifdef CONFIG_PPC_BOOK3S
 459        /* For Gekko paired singles */
 460        u32 qpr[32];
 461#endif
 462
 463        ulong pc;
 464        ulong ctr;
 465        ulong lr;
 466#ifdef CONFIG_PPC_BOOK3S
 467        ulong tar;
 468#endif
 469
 470        ulong xer;
 471        u32 cr;
 472
 473#ifdef CONFIG_PPC_BOOK3S
 474        ulong hflags;
 475        ulong guest_owned_ext;
 476        ulong purr;
 477        ulong spurr;
 478        ulong ic;
 479        ulong vtb;
 480        ulong dscr;
 481        ulong amr;
 482        ulong uamor;
 483        ulong iamr;
 484        u32 ctrl;
 485        u32 dabrx;
 486        ulong dabr;
 487        ulong dawr;
 488        ulong dawrx;
 489        ulong ciabr;
 490        ulong cfar;
 491        ulong ppr;
 492        u32 pspb;
 493        ulong fscr;
 494        ulong shadow_fscr;
 495        ulong ebbhr;
 496        ulong ebbrr;
 497        ulong bescr;
 498        ulong csigr;
 499        ulong tacr;
 500        ulong tcscr;
 501        ulong acop;
 502        ulong wort;
 503        ulong shadow_srr1;
 504#endif
 505        u32 vrsave; /* also USPRG0 */
 506        u32 mmucr;
 507        /* shadow_msr is unused for BookE HV */
 508        ulong shadow_msr;
 509        ulong csrr0;
 510        ulong csrr1;
 511        ulong dsrr0;
 512        ulong dsrr1;
 513        ulong mcsrr0;
 514        ulong mcsrr1;
 515        ulong mcsr;
 516        u32 dec;
 517#ifdef CONFIG_BOOKE
 518        u32 decar;
 519#endif
 520        /* Time base value when we entered the guest */
 521        u64 entry_tb;
 522        u64 entry_vtb;
 523        u64 entry_ic;
 524        u32 tcr;
 525        ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
 526        u32 ivor[64];
 527        ulong ivpr;
 528        u32 pvr;
 529
 530        u32 shadow_pid;
 531        u32 shadow_pid1;
 532        u32 pid;
 533        u32 swap_pid;
 534
 535        u32 ccr0;
 536        u32 ccr1;
 537        u32 dbsr;
 538
 539        u64 mmcr[5];
 540        u32 pmc[8];
 541        u32 spmc[2];
 542        u64 siar;
 543        u64 sdar;
 544        u64 sier;
 545#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 546        u64 tfhar;
 547        u64 texasr;
 548        u64 tfiar;
 549
 550        u32 cr_tm;
 551        u64 lr_tm;
 552        u64 ctr_tm;
 553        u64 amr_tm;
 554        u64 ppr_tm;
 555        u64 dscr_tm;
 556        u64 tar_tm;
 557
 558        ulong gpr_tm[32];
 559
 560        struct thread_fp_state fp_tm;
 561
 562        struct thread_vr_state vr_tm;
 563        u32 vrsave_tm; /* also USPRG0 */
 564
 565#endif
 566
 567#ifdef CONFIG_KVM_EXIT_TIMING
 568        struct mutex exit_timing_lock;
 569        struct kvmppc_exit_timing timing_exit;
 570        struct kvmppc_exit_timing timing_last_enter;
 571        u32 last_exit_type;
 572        u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
 573        u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 574        u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 575        u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 576        u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 577        u64 timing_last_exit;
 578        struct dentry *debugfs_exit_timing;
 579#endif
 580
 581#ifdef CONFIG_PPC_BOOK3S
 582        ulong fault_dar;
 583        u32 fault_dsisr;
 584        unsigned long intr_msr;
 585#endif
 586
 587#ifdef CONFIG_BOOKE
 588        ulong fault_dear;
 589        ulong fault_esr;
 590        ulong queued_dear;
 591        ulong queued_esr;
 592        spinlock_t wdt_lock;
 593        struct timer_list wdt_timer;
 594        u32 tlbcfg[4];
 595        u32 tlbps[4];
 596        u32 mmucfg;
 597        u32 eptcfg;
 598        u32 epr;
 599        u64 sprg9;
 600        u32 pwrmgtcr0;
 601        u32 crit_save;
 602        /* guest debug registers*/
 603        struct debug_reg dbg_reg;
 604#endif
 605        gpa_t paddr_accessed;
 606        gva_t vaddr_accessed;
 607        pgd_t *pgdir;
 608
 609        u8 io_gpr; /* GPR used as IO source/target */
 610        u8 mmio_host_swabbed;
 611        u8 mmio_sign_extend;
 612        u8 osi_needed;
 613        u8 osi_enabled;
 614        u8 papr_enabled;
 615        u8 watchdog_enabled;
 616        u8 sane;
 617        u8 cpu_type;
 618        u8 hcall_needed;
 619        u8 epr_flags; /* KVMPPC_EPR_xxx */
 620        u8 epr_needed;
 621
 622        u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
 623
 624        struct hrtimer dec_timer;
 625        u64 dec_jiffies;
 626        u64 dec_expires;
 627        unsigned long pending_exceptions;
 628        u8 ceded;
 629        u8 prodded;
 630        u32 last_inst;
 631
 632        wait_queue_head_t *wqp;
 633        struct kvmppc_vcore *vcore;
 634        int ret;
 635        int trap;
 636        int state;
 637        int ptid;
 638        int thread_cpu;
 639        bool timer_running;
 640        wait_queue_head_t cpu_run;
 641
 642        struct kvm_vcpu_arch_shared *shared;
 643#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
 644        bool shared_big_endian;
 645#endif
 646        unsigned long magic_page_pa; /* phys addr to map the magic page to */
 647        unsigned long magic_page_ea; /* effect. addr to map the magic page to */
 648        bool disable_kernel_nx;
 649
 650        int irq_type;           /* one of KVM_IRQ_* */
 651        int irq_cpu_id;
 652        struct openpic *mpic;   /* KVM_IRQ_MPIC */
 653#ifdef CONFIG_KVM_XICS
 654        struct kvmppc_icp *icp; /* XICS presentation controller */
 655#endif
 656
 657#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 658        struct kvm_vcpu_arch_shared shregs;
 659
 660        unsigned long pgfault_addr;
 661        long pgfault_index;
 662        unsigned long pgfault_hpte[2];
 663
 664        struct list_head run_list;
 665        struct task_struct *run_task;
 666        struct kvm_run *kvm_run;
 667
 668        spinlock_t vpa_update_lock;
 669        struct kvmppc_vpa vpa;
 670        struct kvmppc_vpa dtl;
 671        struct dtl_entry *dtl_ptr;
 672        unsigned long dtl_index;
 673        u64 stolen_logged;
 674        struct kvmppc_vpa slb_shadow;
 675
 676        spinlock_t tbacct_lock;
 677        u64 busy_stolen;
 678        u64 busy_preempt;
 679
 680        u32 emul_inst;
 681#endif
 682
 683#ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
 684        struct kvmhv_tb_accumulator *cur_activity;      /* What we're timing */
 685        u64     cur_tb_start;                   /* when it started */
 686        struct kvmhv_tb_accumulator rm_entry;   /* real-mode entry code */
 687        struct kvmhv_tb_accumulator rm_intr;    /* real-mode intr handling */
 688        struct kvmhv_tb_accumulator rm_exit;    /* real-mode exit code */
 689        struct kvmhv_tb_accumulator guest_time; /* guest execution */
 690        struct kvmhv_tb_accumulator cede_time;  /* time napping inside guest */
 691
 692        struct dentry *debugfs_dir;
 693        struct dentry *debugfs_timings;
 694#endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
 695};
 696
 697#define VCPU_FPR(vcpu, i)       (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
 698
 699/* Values for vcpu->arch.state */
 700#define KVMPPC_VCPU_NOTREADY            0
 701#define KVMPPC_VCPU_RUNNABLE            1
 702#define KVMPPC_VCPU_BUSY_IN_HOST        2
 703
 704/* Values for vcpu->arch.io_gpr */
 705#define KVM_MMIO_REG_MASK       0x001f
 706#define KVM_MMIO_REG_EXT_MASK   0xffe0
 707#define KVM_MMIO_REG_GPR        0x0000
 708#define KVM_MMIO_REG_FPR        0x0020
 709#define KVM_MMIO_REG_QPR        0x0040
 710#define KVM_MMIO_REG_FQPR       0x0060
 711
 712#define __KVM_HAVE_ARCH_WQP
 713#define __KVM_HAVE_CREATE_DEVICE
 714
 715static inline void kvm_arch_hardware_disable(void) {}
 716static inline void kvm_arch_hardware_unsetup(void) {}
 717static inline void kvm_arch_sync_events(struct kvm *kvm) {}
 718static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {}
 719static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
 720static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
 721static inline void kvm_arch_exit(void) {}
 722static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
 723static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
 724
 725#endif /* __POWERPC_KVM_HOST_H__ */
 726