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#include <asm/cputhreads.h>
  44#define KVM_MAX_VCPU_ID                (threads_per_subcore * KVM_MAX_VCORES)
  45
  46#define __KVM_HAVE_ARCH_INTC_INITIALIZED
  47
  48#ifdef CONFIG_KVM_MMIO
  49#define KVM_COALESCED_MMIO_PAGE_OFFSET 1
  50#endif
  51#define KVM_HALT_POLL_NS_DEFAULT 10000  /* 10 us */
  52
  53/* These values are internal and can be increased later */
  54#define KVM_NR_IRQCHIPS          1
  55#define KVM_IRQCHIP_NUM_PINS     256
  56
  57/* PPC-specific vcpu->requests bit members */
  58#define KVM_REQ_WATCHDOG           8
  59#define KVM_REQ_EPR_EXIT           9
  60
  61#include <linux/mmu_notifier.h>
  62
  63#define KVM_ARCH_WANT_MMU_NOTIFIER
  64
  65extern int kvm_unmap_hva(struct kvm *kvm, unsigned long hva);
  66extern int kvm_unmap_hva_range(struct kvm *kvm,
  67                               unsigned long start, unsigned long end);
  68extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
  69extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
  70extern void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
  71
  72static inline void kvm_arch_mmu_notifier_invalidate_page(struct kvm *kvm,
  73                                                         unsigned long address)
  74{
  75}
  76
  77#define HPTEG_CACHE_NUM                 (1 << 15)
  78#define HPTEG_HASH_BITS_PTE             13
  79#define HPTEG_HASH_BITS_PTE_LONG        12
  80#define HPTEG_HASH_BITS_VPTE            13
  81#define HPTEG_HASH_BITS_VPTE_LONG       5
  82#define HPTEG_HASH_BITS_VPTE_64K        11
  83#define HPTEG_HASH_NUM_PTE              (1 << HPTEG_HASH_BITS_PTE)
  84#define HPTEG_HASH_NUM_PTE_LONG         (1 << HPTEG_HASH_BITS_PTE_LONG)
  85#define HPTEG_HASH_NUM_VPTE             (1 << HPTEG_HASH_BITS_VPTE)
  86#define HPTEG_HASH_NUM_VPTE_LONG        (1 << HPTEG_HASH_BITS_VPTE_LONG)
  87#define HPTEG_HASH_NUM_VPTE_64K         (1 << HPTEG_HASH_BITS_VPTE_64K)
  88
  89/* Physical Address Mask - allowed range of real mode RAM access */
  90#define KVM_PAM                 0x0fffffffffffffffULL
  91
  92struct lppaca;
  93struct slb_shadow;
  94struct dtl_entry;
  95
  96struct kvmppc_vcpu_book3s;
  97struct kvmppc_book3s_shadow_vcpu;
  98
  99struct kvm_vm_stat {
 100        ulong remote_tlb_flush;
 101};
 102
 103struct kvm_vcpu_stat {
 104        u64 sum_exits;
 105        u64 mmio_exits;
 106        u64 signal_exits;
 107        u64 light_exits;
 108        /* Account for special types of light exits: */
 109        u64 itlb_real_miss_exits;
 110        u64 itlb_virt_miss_exits;
 111        u64 dtlb_real_miss_exits;
 112        u64 dtlb_virt_miss_exits;
 113        u64 syscall_exits;
 114        u64 isi_exits;
 115        u64 dsi_exits;
 116        u64 emulated_inst_exits;
 117        u64 dec_exits;
 118        u64 ext_intr_exits;
 119        u64 halt_poll_success_ns;
 120        u64 halt_poll_fail_ns;
 121        u64 halt_wait_ns;
 122        u64 halt_successful_poll;
 123        u64 halt_attempted_poll;
 124        u64 halt_successful_wait;
 125        u64 halt_poll_invalid;
 126        u64 halt_wakeup;
 127        u64 dbell_exits;
 128        u64 gdbell_exits;
 129        u64 ld;
 130        u64 st;
 131#ifdef CONFIG_PPC_BOOK3S
 132        u64 pf_storage;
 133        u64 pf_instruc;
 134        u64 sp_storage;
 135        u64 sp_instruc;
 136        u64 queue_intr;
 137        u64 ld_slow;
 138        u64 st_slow;
 139#endif
 140        u64 pthru_all;
 141        u64 pthru_host;
 142        u64 pthru_bad_aff;
 143};
 144
 145enum kvm_exit_types {
 146        MMIO_EXITS,
 147        SIGNAL_EXITS,
 148        ITLB_REAL_MISS_EXITS,
 149        ITLB_VIRT_MISS_EXITS,
 150        DTLB_REAL_MISS_EXITS,
 151        DTLB_VIRT_MISS_EXITS,
 152        SYSCALL_EXITS,
 153        ISI_EXITS,
 154        DSI_EXITS,
 155        EMULATED_INST_EXITS,
 156        EMULATED_MTMSRWE_EXITS,
 157        EMULATED_WRTEE_EXITS,
 158        EMULATED_MTSPR_EXITS,
 159        EMULATED_MFSPR_EXITS,
 160        EMULATED_MTMSR_EXITS,
 161        EMULATED_MFMSR_EXITS,
 162        EMULATED_TLBSX_EXITS,
 163        EMULATED_TLBWE_EXITS,
 164        EMULATED_RFI_EXITS,
 165        EMULATED_RFCI_EXITS,
 166        EMULATED_RFDI_EXITS,
 167        DEC_EXITS,
 168        EXT_INTR_EXITS,
 169        HALT_WAKEUP,
 170        USR_PR_INST,
 171        FP_UNAVAIL,
 172        DEBUG_EXITS,
 173        TIMEINGUEST,
 174        DBELL_EXITS,
 175        GDBELL_EXITS,
 176        __NUMBER_OF_KVM_EXIT_TYPES
 177};
 178
 179/* allow access to big endian 32bit upper/lower parts and 64bit var */
 180struct kvmppc_exit_timing {
 181        union {
 182                u64 tv64;
 183                struct {
 184                        u32 tbu, tbl;
 185                } tv32;
 186        };
 187};
 188
 189struct kvmppc_pginfo {
 190        unsigned long pfn;
 191        atomic_t refcnt;
 192};
 193
 194struct kvmppc_spapr_tce_table {
 195        struct list_head list;
 196        struct kvm *kvm;
 197        u64 liobn;
 198        struct rcu_head rcu;
 199        u32 page_shift;
 200        u64 offset;             /* in pages */
 201        u64 size;               /* window size in pages */
 202        struct page *pages[0];
 203};
 204
 205/* XICS components, defined in book3s_xics.c */
 206struct kvmppc_xics;
 207struct kvmppc_icp;
 208
 209struct kvmppc_passthru_irqmap;
 210
 211/*
 212 * The reverse mapping array has one entry for each HPTE,
 213 * which stores the guest's view of the second word of the HPTE
 214 * (including the guest physical address of the mapping),
 215 * plus forward and backward pointers in a doubly-linked ring
 216 * of HPTEs that map the same host page.  The pointers in this
 217 * ring are 32-bit HPTE indexes, to save space.
 218 */
 219struct revmap_entry {
 220        unsigned long guest_rpte;
 221        unsigned int forw, back;
 222};
 223
 224/*
 225 * We use the top bit of each memslot->arch.rmap entry as a lock bit,
 226 * and bit 32 as a present flag.  The bottom 32 bits are the
 227 * index in the guest HPT of a HPTE that points to the page.
 228 */
 229#define KVMPPC_RMAP_LOCK_BIT    63
 230#define KVMPPC_RMAP_RC_SHIFT    32
 231#define KVMPPC_RMAP_CHG_SHIFT   48
 232#define KVMPPC_RMAP_REFERENCED  (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
 233#define KVMPPC_RMAP_CHANGED     (HPTE_R_C << KVMPPC_RMAP_RC_SHIFT)
 234#define KVMPPC_RMAP_CHG_ORDER   (0x3ful << KVMPPC_RMAP_CHG_SHIFT)
 235#define KVMPPC_RMAP_PRESENT     0x100000000ul
 236#define KVMPPC_RMAP_INDEX       0xfffffffful
 237
 238struct kvm_arch_memory_slot {
 239#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 240        unsigned long *rmap;
 241#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 242};
 243
 244struct kvm_hpt_info {
 245        /* Host virtual (linear mapping) address of guest HPT */
 246        unsigned long virt;
 247        /* Array of reverse mapping entries for each guest HPTE */
 248        struct revmap_entry *rev;
 249        /* Guest HPT size is 2**(order) bytes */
 250        u32 order;
 251        /* 1 if HPT allocated with CMA, 0 otherwise */
 252        int cma;
 253};
 254
 255struct kvm_resize_hpt;
 256
 257struct kvm_arch {
 258        unsigned int lpid;
 259#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 260        unsigned int tlb_sets;
 261        struct kvm_hpt_info hpt;
 262        atomic64_t mmio_update;
 263        unsigned int host_lpid;
 264        unsigned long host_lpcr;
 265        unsigned long sdr1;
 266        unsigned long host_sdr1;
 267        int tlbie_lock;
 268        unsigned long lpcr;
 269        unsigned long vrma_slb_v;
 270        int hpte_setup_done;
 271        atomic_t vcpus_running;
 272        u32 online_vcores;
 273        atomic_t hpte_mod_interest;
 274        cpumask_t need_tlb_flush;
 275        cpumask_t cpu_in_guest;
 276        u8 radix;
 277        pgd_t *pgtable;
 278        u64 process_table;
 279        struct dentry *debugfs_dir;
 280        struct dentry *htab_dentry;
 281        struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */
 282#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 283#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 284        struct mutex hpt_mutex;
 285#endif
 286#ifdef CONFIG_PPC_BOOK3S_64
 287        struct list_head spapr_tce_tables;
 288        struct list_head rtas_tokens;
 289        DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
 290#endif
 291#ifdef CONFIG_KVM_MPIC
 292        struct openpic *mpic;
 293#endif
 294#ifdef CONFIG_KVM_XICS
 295        struct kvmppc_xics *xics;
 296        struct kvmppc_passthru_irqmap *pimap;
 297#endif
 298        struct kvmppc_ops *kvm_ops;
 299#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 300        /* This array can grow quite large, keep it at the end */
 301        struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
 302#endif
 303};
 304
 305#define VCORE_ENTRY_MAP(vc)     ((vc)->entry_exit_map & 0xff)
 306#define VCORE_EXIT_MAP(vc)      ((vc)->entry_exit_map >> 8)
 307#define VCORE_IS_EXITING(vc)    (VCORE_EXIT_MAP(vc) != 0)
 308
 309/* This bit is used when a vcore exit is triggered from outside the vcore */
 310#define VCORE_EXIT_REQ          0x10000
 311
 312/*
 313 * Values for vcore_state.
 314 * Note that these are arranged such that lower values
 315 * (< VCORE_SLEEPING) don't require stolen time accounting
 316 * on load/unload, and higher values do.
 317 */
 318#define VCORE_INACTIVE  0
 319#define VCORE_PREEMPT   1
 320#define VCORE_PIGGYBACK 2
 321#define VCORE_SLEEPING  3
 322#define VCORE_RUNNING   4
 323#define VCORE_EXITING   5
 324#define VCORE_POLLING   6
 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_BOOK3S_64
 394struct kvmppc_irq_map {
 395        u32     r_hwirq;
 396        u32     v_hwirq;
 397        struct irq_desc *desc;
 398};
 399
 400#define KVMPPC_PIRQ_MAPPED      1024
 401struct kvmppc_passthru_irqmap {
 402        int n_mapped;
 403        struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED];
 404};
 405#endif
 406
 407# ifdef CONFIG_PPC_FSL_BOOK3E
 408#define KVMPPC_BOOKE_IAC_NUM    2
 409#define KVMPPC_BOOKE_DAC_NUM    2
 410# else
 411#define KVMPPC_BOOKE_IAC_NUM    4
 412#define KVMPPC_BOOKE_DAC_NUM    2
 413# endif
 414#define KVMPPC_BOOKE_MAX_IAC    4
 415#define KVMPPC_BOOKE_MAX_DAC    2
 416
 417/* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
 418#define KVMPPC_EPR_NONE         0 /* EPR not supported */
 419#define KVMPPC_EPR_USER         1 /* exit to userspace to fill EPR */
 420#define KVMPPC_EPR_KERNEL       2 /* in-kernel irqchip */
 421
 422#define KVMPPC_IRQ_DEFAULT      0
 423#define KVMPPC_IRQ_MPIC         1
 424#define KVMPPC_IRQ_XICS         2
 425
 426#define MMIO_HPTE_CACHE_SIZE    4
 427
 428struct mmio_hpte_cache_entry {
 429        unsigned long hpte_v;
 430        unsigned long hpte_r;
 431        unsigned long rpte;
 432        unsigned long pte_index;
 433        unsigned long eaddr;
 434        unsigned long slb_v;
 435        long mmio_update;
 436        unsigned int slb_base_pshift;
 437};
 438
 439struct mmio_hpte_cache {
 440        struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE];
 441        unsigned int index;
 442};
 443
 444struct openpic;
 445
 446struct kvm_vcpu_arch {
 447        ulong host_stack;
 448        u32 host_pid;
 449#ifdef CONFIG_PPC_BOOK3S
 450        struct kvmppc_slb slb[64];
 451        int slb_max;            /* 1 + index of last valid entry in slb[] */
 452        int slb_nr;             /* total number of entries in SLB */
 453        struct kvmppc_mmu mmu;
 454        struct kvmppc_vcpu_book3s *book3s;
 455#endif
 456#ifdef CONFIG_PPC_BOOK3S_32
 457        struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
 458#endif
 459
 460        ulong gpr[32];
 461
 462        struct thread_fp_state fp;
 463
 464#ifdef CONFIG_SPE
 465        ulong evr[32];
 466        ulong spefscr;
 467        ulong host_spefscr;
 468        u64 acc;
 469#endif
 470#ifdef CONFIG_ALTIVEC
 471        struct thread_vr_state vr;
 472#endif
 473
 474#ifdef CONFIG_KVM_BOOKE_HV
 475        u32 host_mas4;
 476        u32 host_mas6;
 477        u32 shadow_epcr;
 478        u32 shadow_msrp;
 479        u32 eplc;
 480        u32 epsc;
 481        u32 oldpir;
 482#endif
 483
 484#if defined(CONFIG_BOOKE)
 485#if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
 486        u32 epcr;
 487#endif
 488#endif
 489
 490#ifdef CONFIG_PPC_BOOK3S
 491        /* For Gekko paired singles */
 492        u32 qpr[32];
 493#endif
 494
 495        ulong pc;
 496        ulong ctr;
 497        ulong lr;
 498#ifdef CONFIG_PPC_BOOK3S
 499        ulong tar;
 500#endif
 501
 502        ulong xer;
 503        u32 cr;
 504
 505#ifdef CONFIG_PPC_BOOK3S
 506        ulong hflags;
 507        ulong guest_owned_ext;
 508        ulong purr;
 509        ulong spurr;
 510        ulong ic;
 511        ulong dscr;
 512        ulong amr;
 513        ulong uamor;
 514        ulong iamr;
 515        u32 ctrl;
 516        u32 dabrx;
 517        ulong dabr;
 518        ulong dawr;
 519        ulong dawrx;
 520        ulong ciabr;
 521        ulong cfar;
 522        ulong ppr;
 523        u32 pspb;
 524        ulong fscr;
 525        ulong shadow_fscr;
 526        ulong ebbhr;
 527        ulong ebbrr;
 528        ulong bescr;
 529        ulong csigr;
 530        ulong tacr;
 531        ulong tcscr;
 532        ulong acop;
 533        ulong wort;
 534        ulong tid;
 535        ulong psscr;
 536        ulong shadow_srr1;
 537#endif
 538        u32 vrsave; /* also USPRG0 */
 539        u32 mmucr;
 540        /* shadow_msr is unused for BookE HV */
 541        ulong shadow_msr;
 542        ulong csrr0;
 543        ulong csrr1;
 544        ulong dsrr0;
 545        ulong dsrr1;
 546        ulong mcsrr0;
 547        ulong mcsrr1;
 548        ulong mcsr;
 549        u32 dec;
 550#ifdef CONFIG_BOOKE
 551        u32 decar;
 552#endif
 553        /* Time base value when we entered the guest */
 554        u64 entry_tb;
 555        u64 entry_vtb;
 556        u64 entry_ic;
 557        u32 tcr;
 558        ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
 559        u32 ivor[64];
 560        ulong ivpr;
 561        u32 pvr;
 562
 563        u32 shadow_pid;
 564        u32 shadow_pid1;
 565        u32 pid;
 566        u32 swap_pid;
 567
 568        u32 ccr0;
 569        u32 ccr1;
 570        u32 dbsr;
 571
 572        u64 mmcr[5];
 573        u32 pmc[8];
 574        u32 spmc[2];
 575        u64 siar;
 576        u64 sdar;
 577        u64 sier;
 578#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 579        u64 tfhar;
 580        u64 texasr;
 581        u64 tfiar;
 582
 583        u32 cr_tm;
 584        u64 xer_tm;
 585        u64 lr_tm;
 586        u64 ctr_tm;
 587        u64 amr_tm;
 588        u64 ppr_tm;
 589        u64 dscr_tm;
 590        u64 tar_tm;
 591
 592        ulong gpr_tm[32];
 593
 594        struct thread_fp_state fp_tm;
 595
 596        struct thread_vr_state vr_tm;
 597        u32 vrsave_tm; /* also USPRG0 */
 598
 599#endif
 600
 601#ifdef CONFIG_KVM_EXIT_TIMING
 602        struct mutex exit_timing_lock;
 603        struct kvmppc_exit_timing timing_exit;
 604        struct kvmppc_exit_timing timing_last_enter;
 605        u32 last_exit_type;
 606        u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
 607        u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 608        u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 609        u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 610        u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 611        u64 timing_last_exit;
 612        struct dentry *debugfs_exit_timing;
 613#endif
 614
 615#ifdef CONFIG_PPC_BOOK3S
 616        ulong fault_dar;
 617        u32 fault_dsisr;
 618        unsigned long intr_msr;
 619        ulong fault_gpa;        /* guest real address of page fault (POWER9) */
 620#endif
 621
 622#ifdef CONFIG_BOOKE
 623        ulong fault_dear;
 624        ulong fault_esr;
 625        ulong queued_dear;
 626        ulong queued_esr;
 627        spinlock_t wdt_lock;
 628        struct timer_list wdt_timer;
 629        u32 tlbcfg[4];
 630        u32 tlbps[4];
 631        u32 mmucfg;
 632        u32 eptcfg;
 633        u32 epr;
 634        u64 sprg9;
 635        u32 pwrmgtcr0;
 636        u32 crit_save;
 637        /* guest debug registers*/
 638        struct debug_reg dbg_reg;
 639#endif
 640        gpa_t paddr_accessed;
 641        gva_t vaddr_accessed;
 642        pgd_t *pgdir;
 643
 644        u8 io_gpr; /* GPR used as IO source/target */
 645        u8 mmio_host_swabbed;
 646        u8 mmio_sign_extend;
 647        u8 osi_needed;
 648        u8 osi_enabled;
 649        u8 papr_enabled;
 650        u8 watchdog_enabled;
 651        u8 sane;
 652        u8 cpu_type;
 653        u8 hcall_needed;
 654        u8 epr_flags; /* KVMPPC_EPR_xxx */
 655        u8 epr_needed;
 656
 657        u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
 658
 659        struct hrtimer dec_timer;
 660        u64 dec_jiffies;
 661        u64 dec_expires;
 662        unsigned long pending_exceptions;
 663        u8 ceded;
 664        u8 prodded;
 665        u32 last_inst;
 666
 667        struct swait_queue_head *wqp;
 668        struct kvmppc_vcore *vcore;
 669        int ret;
 670        int trap;
 671        int state;
 672        int ptid;
 673        int thread_cpu;
 674        int prev_cpu;
 675        bool timer_running;
 676        wait_queue_head_t cpu_run;
 677
 678        struct kvm_vcpu_arch_shared *shared;
 679#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
 680        bool shared_big_endian;
 681#endif
 682        unsigned long magic_page_pa; /* phys addr to map the magic page to */
 683        unsigned long magic_page_ea; /* effect. addr to map the magic page to */
 684        bool disable_kernel_nx;
 685
 686        int irq_type;           /* one of KVM_IRQ_* */
 687        int irq_cpu_id;
 688        struct openpic *mpic;   /* KVM_IRQ_MPIC */
 689#ifdef CONFIG_KVM_XICS
 690        struct kvmppc_icp *icp; /* XICS presentation controller */
 691#endif
 692
 693#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 694        struct kvm_vcpu_arch_shared shregs;
 695
 696        struct mmio_hpte_cache mmio_cache;
 697        unsigned long pgfault_addr;
 698        long pgfault_index;
 699        unsigned long pgfault_hpte[2];
 700        struct mmio_hpte_cache_entry *pgfault_cache;
 701
 702        struct task_struct *run_task;
 703        struct kvm_run *kvm_run;
 704
 705        spinlock_t vpa_update_lock;
 706        struct kvmppc_vpa vpa;
 707        struct kvmppc_vpa dtl;
 708        struct dtl_entry *dtl_ptr;
 709        unsigned long dtl_index;
 710        u64 stolen_logged;
 711        struct kvmppc_vpa slb_shadow;
 712
 713        spinlock_t tbacct_lock;
 714        u64 busy_stolen;
 715        u64 busy_preempt;
 716
 717        u32 emul_inst;
 718#endif
 719
 720#ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
 721        struct kvmhv_tb_accumulator *cur_activity;      /* What we're timing */
 722        u64     cur_tb_start;                   /* when it started */
 723        struct kvmhv_tb_accumulator rm_entry;   /* real-mode entry code */
 724        struct kvmhv_tb_accumulator rm_intr;    /* real-mode intr handling */
 725        struct kvmhv_tb_accumulator rm_exit;    /* real-mode exit code */
 726        struct kvmhv_tb_accumulator guest_time; /* guest execution */
 727        struct kvmhv_tb_accumulator cede_time;  /* time napping inside guest */
 728
 729        struct dentry *debugfs_dir;
 730        struct dentry *debugfs_timings;
 731#endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
 732};
 733
 734#define VCPU_FPR(vcpu, i)       (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
 735
 736/* Values for vcpu->arch.state */
 737#define KVMPPC_VCPU_NOTREADY            0
 738#define KVMPPC_VCPU_RUNNABLE            1
 739#define KVMPPC_VCPU_BUSY_IN_HOST        2
 740
 741/* Values for vcpu->arch.io_gpr */
 742#define KVM_MMIO_REG_MASK       0x001f
 743#define KVM_MMIO_REG_EXT_MASK   0xffe0
 744#define KVM_MMIO_REG_GPR        0x0000
 745#define KVM_MMIO_REG_FPR        0x0020
 746#define KVM_MMIO_REG_QPR        0x0040
 747#define KVM_MMIO_REG_FQPR       0x0060
 748
 749#define __KVM_HAVE_ARCH_WQP
 750#define __KVM_HAVE_CREATE_DEVICE
 751
 752static inline void kvm_arch_hardware_disable(void) {}
 753static inline void kvm_arch_hardware_unsetup(void) {}
 754static inline void kvm_arch_sync_events(struct kvm *kvm) {}
 755static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {}
 756static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
 757static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
 758static inline void kvm_arch_exit(void) {}
 759static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
 760static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
 761static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
 762
 763#endif /* __POWERPC_KVM_HOST_H__ */
 764