arch/powerpc/include/asm/kvm_host.h

   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 500000
  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
  65 extern int kvm_unmap_hva(struct kvm *kvm, unsigned long hva);
  66 extern int kvm_unmap_hva_range(struct kvm *kvm,
  67                                unsigned long start, unsigned long end);
  68 extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
  69 extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
  70 extern void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
  71
  72 static 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
  92 struct lppaca;
  93 struct slb_shadow;
  94 struct dtl_entry;
  95
  96 struct kvmppc_vcpu_book3s;
  97 struct kvmppc_book3s_shadow_vcpu;
  98
  99 struct kvm_vm_stat {
 100         ulong remote_tlb_flush;
 101 };
 102
 103 struct 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_successful_poll;
 120         u64 halt_attempted_poll;
 121         u64 halt_poll_invalid;
 122         u64 halt_wakeup;
 123         u64 dbell_exits;
 124         u64 gdbell_exits;
 125         u64 ld;
 126         u64 st;
 127 #ifdef CONFIG_PPC_BOOK3S
 128         u64 pf_storage;
 129         u64 pf_instruc;
 130         u64 sp_storage;
 131         u64 sp_instruc;
 132         u64 queue_intr;
 133         u64 ld_slow;
 134         u64 st_slow;
 135 #endif
 136 };
 137
 138 enum kvm_exit_types {
 139         MMIO_EXITS,
 140         SIGNAL_EXITS,
 141         ITLB_REAL_MISS_EXITS,
 142         ITLB_VIRT_MISS_EXITS,
 143         DTLB_REAL_MISS_EXITS,
 144         DTLB_VIRT_MISS_EXITS,
 145         SYSCALL_EXITS,
 146         ISI_EXITS,
 147         DSI_EXITS,
 148         EMULATED_INST_EXITS,
 149         EMULATED_MTMSRWE_EXITS,
 150         EMULATED_WRTEE_EXITS,
 151         EMULATED_MTSPR_EXITS,
 152         EMULATED_MFSPR_EXITS,
 153         EMULATED_MTMSR_EXITS,
 154         EMULATED_MFMSR_EXITS,
 155         EMULATED_TLBSX_EXITS,
 156         EMULATED_TLBWE_EXITS,
 157         EMULATED_RFI_EXITS,
 158         EMULATED_RFCI_EXITS,
 159         EMULATED_RFDI_EXITS,
 160         DEC_EXITS,
 161         EXT_INTR_EXITS,
 162         HALT_WAKEUP,
 163         USR_PR_INST,
 164         FP_UNAVAIL,
 165         DEBUG_EXITS,
 166         TIMEINGUEST,
 167         DBELL_EXITS,
 168         GDBELL_EXITS,
 169         __NUMBER_OF_KVM_EXIT_TYPES
 170 };
 171
 172 /* allow access to big endian 32bit upper/lower parts and 64bit var */
 173 struct kvmppc_exit_timing {
 174         union {
 175                 u64 tv64;
 176                 struct {
 177                         u32 tbu, tbl;
 178                 } tv32;
 179         };
 180 };
 181
 182 struct kvmppc_pginfo {
 183         unsigned long pfn;
 184         atomic_t refcnt;
 185 };
 186
 187 struct kvmppc_spapr_tce_table {
 188         struct list_head list;
 189         struct kvm *kvm;
 190         u64 liobn;
 191         struct rcu_head rcu;
 192         u32 page_shift;
 193         u64 offset;             /* in pages */
 194         u64 size;               /* window size in pages */
 195         struct page *pages[0];
 196 };
 197
 198 /* XICS components, defined in book3s_xics.c */
 199 struct kvmppc_xics;
 200 struct kvmppc_icp;
 201
 202 /*
 203  * The reverse mapping array has one entry for each HPTE,
 204  * which stores the guest's view of the second word of the HPTE
 205  * (including the guest physical address of the mapping),
 206  * plus forward and backward pointers in a doubly-linked ring
 207  * of HPTEs that map the same host page.  The pointers in this
 208  * ring are 32-bit HPTE indexes, to save space.
 209  */
 210 struct revmap_entry {
 211         unsigned long guest_rpte;
 212         unsigned int forw, back;
 213 };
 214
 215 /*
 216  * We use the top bit of each memslot->arch.rmap entry as a lock bit,
 217  * and bit 32 as a present flag.  The bottom 32 bits are the
 218  * index in the guest HPT of a HPTE that points to the page.
 219  */
 220 #define KVMPPC_RMAP_LOCK_BIT    63
 221 #define KVMPPC_RMAP_RC_SHIFT    32
 222 #define KVMPPC_RMAP_CHG_SHIFT   48
 223 #define KVMPPC_RMAP_REFERENCED  (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
 224 #define KVMPPC_RMAP_CHANGED     (HPTE_R_C << KVMPPC_RMAP_RC_SHIFT)
 225 #define KVMPPC_RMAP_CHG_ORDER   (0x3ful << KVMPPC_RMAP_CHG_SHIFT)
 226 #define KVMPPC_RMAP_PRESENT     0x100000000ul
 227 #define KVMPPC_RMAP_INDEX       0xfffffffful
 228
 229 struct kvm_arch_memory_slot {
 230 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 231         unsigned long *rmap;
 232 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 233 };
 234
 235 struct kvm_arch {
 236         unsigned int lpid;
 237 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 238         unsigned long hpt_virt;
 239         struct revmap_entry *revmap;
 240         unsigned int host_lpid;
 241         unsigned long host_lpcr;
 242         unsigned long sdr1;
 243         unsigned long host_sdr1;
 244         int tlbie_lock;
 245         unsigned long lpcr;
 246         unsigned long vrma_slb_v;
 247         int hpte_setup_done;
 248         u32 hpt_order;
 249         atomic_t vcpus_running;
 250         u32 online_vcores;
 251         unsigned long hpt_npte;
 252         unsigned long hpt_mask;
 253         atomic_t hpte_mod_interest;
 254         cpumask_t need_tlb_flush;
 255         int hpt_cma_alloc;
 256         struct dentry *debugfs_dir;
 257         struct dentry *htab_dentry;
 258 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 259 #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 260         struct mutex hpt_mutex;
 261 #endif
 262 #ifdef CONFIG_PPC_BOOK3S_64
 263         struct list_head spapr_tce_tables;
 264         struct list_head rtas_tokens;
 265         DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
 266 #endif
 267 #ifdef CONFIG_KVM_MPIC
 268         struct openpic *mpic;
 269 #endif
 270 #ifdef CONFIG_KVM_XICS
 271         struct kvmppc_xics *xics;
 272 #endif
 273         struct kvmppc_ops *kvm_ops;
 274 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 275         /* This array can grow quite large, keep it at the end */
 276         struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
 277 #endif
 278 };
 279
 280 #define VCORE_ENTRY_MAP(vc)     ((vc)->entry_exit_map & 0xff)
 281 #define VCORE_EXIT_MAP(vc)      ((vc)->entry_exit_map >> 8)
 282 #define VCORE_IS_EXITING(vc)    (VCORE_EXIT_MAP(vc) != 0)
 283
 284 /* This bit is used when a vcore exit is triggered from outside the vcore */
 285 #define VCORE_EXIT_REQ          0x10000
 286
 287 /*
 288  * Values for vcore_state.
 289  * Note that these are arranged such that lower values
 290  * (< VCORE_SLEEPING) don't require stolen time accounting
 291  * on load/unload, and higher values do.
 292  */
 293 #define VCORE_INACTIVE  0
 294 #define VCORE_PREEMPT   1
 295 #define VCORE_PIGGYBACK 2
 296 #define VCORE_SLEEPING  3
 297 #define VCORE_RUNNING   4
 298 #define VCORE_EXITING   5
 299 #define VCORE_POLLING   6
 300
 301 /*
 302  * Struct used to manage memory for a virtual processor area
 303  * registered by a PAPR guest.  There are three types of area
 304  * that a guest can register.
 305  */
 306 struct kvmppc_vpa {
 307         unsigned long gpa;      /* Current guest phys addr */
 308         void *pinned_addr;      /* Address in kernel linear mapping */
 309         void *pinned_end;       /* End of region */
 310         unsigned long next_gpa; /* Guest phys addr for update */
 311         unsigned long len;      /* Number of bytes required */
 312         u8 update_pending;      /* 1 => update pinned_addr from next_gpa */
 313         bool dirty;             /* true => area has been modified by kernel */
 314 };
 315
 316 struct kvmppc_pte {
 317         ulong eaddr;
 318         u64 vpage;
 319         ulong raddr;
 320         bool may_read           : 1;
 321         bool may_write          : 1;
 322         bool may_execute        : 1;
 323         u8 page_size;           /* MMU_PAGE_xxx */
 324 };
 325
 326 struct kvmppc_mmu {
 327         /* book3s_64 only */
 328         void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
 329         u64  (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
 330         u64  (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
 331         void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
 332         void (*slbia)(struct kvm_vcpu *vcpu);
 333         /* book3s */
 334         void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
 335         u32  (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
 336         int  (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
 337                       struct kvmppc_pte *pte, bool data, bool iswrite);
 338         void (*reset_msr)(struct kvm_vcpu *vcpu);
 339         void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
 340         int  (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
 341         u64  (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
 342         bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
 343 };
 344
 345 struct kvmppc_slb {
 346         u64 esid;
 347         u64 vsid;
 348         u64 orige;
 349         u64 origv;
 350         bool valid      : 1;
 351         bool Ks         : 1;
 352         bool Kp         : 1;
 353         bool nx         : 1;
 354         bool large      : 1;    /* PTEs are 16MB */
 355         bool tb         : 1;    /* 1TB segment */
 356         bool class      : 1;
 357         u8 base_page_size;      /* MMU_PAGE_xxx */
 358 };
 359
 360 /* Struct used to accumulate timing information in HV real mode code */
 361 struct kvmhv_tb_accumulator {
 362         u64     seqcount;       /* used to synchronize access, also count * 2 */
 363         u64     tb_total;       /* total time in timebase ticks */
 364         u64     tb_min;         /* min time */
 365         u64     tb_max;         /* max time */
 366 };
 367
 368 # ifdef CONFIG_PPC_FSL_BOOK3E
 369 #define KVMPPC_BOOKE_IAC_NUM    2
 370 #define KVMPPC_BOOKE_DAC_NUM    2
 371 # else
 372 #define KVMPPC_BOOKE_IAC_NUM    4
 373 #define KVMPPC_BOOKE_DAC_NUM    2
 374 # endif
 375 #define KVMPPC_BOOKE_MAX_IAC    4
 376 #define KVMPPC_BOOKE_MAX_DAC    2
 377
 378 /* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
 379 #define KVMPPC_EPR_NONE         0 /* EPR not supported */
 380 #define KVMPPC_EPR_USER         1 /* exit to userspace to fill EPR */
 381 #define KVMPPC_EPR_KERNEL       2 /* in-kernel irqchip */
 382
 383 #define KVMPPC_IRQ_DEFAULT      0
 384 #define KVMPPC_IRQ_MPIC         1
 385 #define KVMPPC_IRQ_XICS         2
 386
 387 struct openpic;
 388
 389 struct kvm_vcpu_arch {
 390         ulong host_stack;
 391         u32 host_pid;
 392 #ifdef CONFIG_PPC_BOOK3S
 393         struct kvmppc_slb slb[64];
 394         int slb_max;            /* 1 + index of last valid entry in slb[] */
 395         int slb_nr;             /* total number of entries in SLB */
 396         struct kvmppc_mmu mmu;
 397         struct kvmppc_vcpu_book3s *book3s;
 398 #endif
 399 #ifdef CONFIG_PPC_BOOK3S_32
 400         struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
 401 #endif
 402
 403         ulong gpr[32];
 404
 405         struct thread_fp_state fp;
 406
 407 #ifdef CONFIG_SPE
 408         ulong evr[32];
 409         ulong spefscr;
 410         ulong host_spefscr;
 411         u64 acc;
 412 #endif
 413 #ifdef CONFIG_ALTIVEC
 414         struct thread_vr_state vr;
 415 #endif
 416
 417 #ifdef CONFIG_KVM_BOOKE_HV
 418         u32 host_mas4;
 419         u32 host_mas6;
 420         u32 shadow_epcr;
 421         u32 shadow_msrp;
 422         u32 eplc;
 423         u32 epsc;
 424         u32 oldpir;
 425 #endif
 426
 427 #if defined(CONFIG_BOOKE)
 428 #if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
 429         u32 epcr;
 430 #endif
 431 #endif
 432
 433 #ifdef CONFIG_PPC_BOOK3S
 434         /* For Gekko paired singles */
 435         u32 qpr[32];
 436 #endif
 437
 438         ulong pc;
 439         ulong ctr;
 440         ulong lr;
 441 #ifdef CONFIG_PPC_BOOK3S
 442         ulong tar;
 443 #endif
 444
 445         ulong xer;
 446         u32 cr;
 447
 448 #ifdef CONFIG_PPC_BOOK3S
 449         ulong hflags;
 450         ulong guest_owned_ext;
 451         ulong purr;
 452         ulong spurr;
 453         ulong ic;
 454         ulong vtb;
 455         ulong dscr;
 456         ulong amr;
 457         ulong uamor;
 458         ulong iamr;
 459         u32 ctrl;
 460         u32 dabrx;
 461         ulong dabr;
 462         ulong dawr;
 463         ulong dawrx;
 464         ulong ciabr;
 465         ulong cfar;
 466         ulong ppr;
 467         u32 pspb;
 468         ulong fscr;
 469         ulong shadow_fscr;
 470         ulong ebbhr;
 471         ulong ebbrr;
 472         ulong bescr;
 473         ulong csigr;
 474         ulong tacr;
 475         ulong tcscr;
 476         ulong acop;
 477         ulong wort;
 478         ulong shadow_srr1;
 479 #endif
 480         u32 vrsave; /* also USPRG0 */
 481         u32 mmucr;
 482         /* shadow_msr is unused for BookE HV */
 483         ulong shadow_msr;
 484         ulong csrr0;
 485         ulong csrr1;
 486         ulong dsrr0;
 487         ulong dsrr1;
 488         ulong mcsrr0;
 489         ulong mcsrr1;
 490         ulong mcsr;
 491         u32 dec;
 492 #ifdef CONFIG_BOOKE
 493         u32 decar;
 494 #endif
 495         /* Time base value when we entered the guest */
 496         u64 entry_tb;
 497         u64 entry_vtb;
 498         u64 entry_ic;
 499         u32 tcr;
 500         ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
 501         u32 ivor[64];
 502         ulong ivpr;
 503         u32 pvr;
 504
 505         u32 shadow_pid;
 506         u32 shadow_pid1;
 507         u32 pid;
 508         u32 swap_pid;
 509
 510         u32 ccr0;
 511         u32 ccr1;
 512         u32 dbsr;
 513
 514         u64 mmcr[5];
 515         u32 pmc[8];
 516         u32 spmc[2];
 517         u64 siar;
 518         u64 sdar;
 519         u64 sier;
 520 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 521         u64 tfhar;
 522         u64 texasr;
 523         u64 tfiar;
 524
 525         u32 cr_tm;
 526         u64 lr_tm;
 527         u64 ctr_tm;
 528         u64 amr_tm;
 529         u64 ppr_tm;
 530         u64 dscr_tm;
 531         u64 tar_tm;
 532
 533         ulong gpr_tm[32];
 534
 535         struct thread_fp_state fp_tm;
 536
 537         struct thread_vr_state vr_tm;
 538         u32 vrsave_tm; /* also USPRG0 */
 539
 540 #endif
 541
 542 #ifdef CONFIG_KVM_EXIT_TIMING
 543         struct mutex exit_timing_lock;
 544         struct kvmppc_exit_timing timing_exit;
 545         struct kvmppc_exit_timing timing_last_enter;
 546         u32 last_exit_type;
 547         u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
 548         u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 549         u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 550         u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 551         u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 552         u64 timing_last_exit;
 553         struct dentry *debugfs_exit_timing;
 554 #endif
 555
 556 #ifdef CONFIG_PPC_BOOK3S
 557         ulong fault_dar;
 558         u32 fault_dsisr;
 559         unsigned long intr_msr;
 560 #endif
 561
 562 #ifdef CONFIG_BOOKE
 563         ulong fault_dear;
 564         ulong fault_esr;
 565         ulong queued_dear;
 566         ulong queued_esr;
 567         spinlock_t wdt_lock;
 568         struct timer_list wdt_timer;
 569         u32 tlbcfg[4];
 570         u32 tlbps[4];
 571         u32 mmucfg;
 572         u32 eptcfg;
 573         u32 epr;
 574         u64 sprg9;
 575         u32 pwrmgtcr0;
 576         u32 crit_save;
 577         /* guest debug registers*/
 578         struct debug_reg dbg_reg;
 579 #endif
 580         gpa_t paddr_accessed;
 581         gva_t vaddr_accessed;
 582         pgd_t *pgdir;
 583
 584         u8 io_gpr; /* GPR used as IO source/target */
 585         u8 mmio_host_swabbed;
 586         u8 mmio_sign_extend;
 587         u8 osi_needed;
 588         u8 osi_enabled;
 589         u8 papr_enabled;
 590         u8 watchdog_enabled;
 591         u8 sane;
 592         u8 cpu_type;
 593         u8 hcall_needed;
 594         u8 epr_flags; /* KVMPPC_EPR_xxx */
 595         u8 epr_needed;
 596
 597         u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
 598
 599         struct hrtimer dec_timer;
 600         u64 dec_jiffies;
 601         u64 dec_expires;
 602         unsigned long pending_exceptions;
 603         u8 ceded;
 604         u8 prodded;
 605         u32 last_inst;
 606
 607         struct swait_queue_head *wqp;
 608         struct kvmppc_vcore *vcore;
 609         int ret;
 610         int trap;
 611         int state;
 612         int ptid;
 613         int thread_cpu;
 614         bool timer_running;
 615         wait_queue_head_t cpu_run;
 616
 617         struct kvm_vcpu_arch_shared *shared;
 618 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
 619         bool shared_big_endian;
 620 #endif
 621         unsigned long magic_page_pa; /* phys addr to map the magic page to */
 622         unsigned long magic_page_ea; /* effect. addr to map the magic page to */
 623         bool disable_kernel_nx;
 624
 625         int irq_type;           /* one of KVM_IRQ_* */
 626         int irq_cpu_id;
 627         struct openpic *mpic;   /* KVM_IRQ_MPIC */
 628 #ifdef CONFIG_KVM_XICS
 629         struct kvmppc_icp *icp; /* XICS presentation controller */
 630 #endif
 631
 632 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 633         struct kvm_vcpu_arch_shared shregs;
 634
 635         unsigned long pgfault_addr;
 636         long pgfault_index;
 637         unsigned long pgfault_hpte[2];
 638
 639         struct task_struct *run_task;
 640         struct kvm_run *kvm_run;
 641
 642         spinlock_t vpa_update_lock;
 643         struct kvmppc_vpa vpa;
 644         struct kvmppc_vpa dtl;
 645         struct dtl_entry *dtl_ptr;
 646         unsigned long dtl_index;
 647         u64 stolen_logged;
 648         struct kvmppc_vpa slb_shadow;
 649
 650         spinlock_t tbacct_lock;
 651         u64 busy_stolen;
 652         u64 busy_preempt;
 653
 654         u32 emul_inst;
 655 #endif
 656
 657 #ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
 658         struct kvmhv_tb_accumulator *cur_activity;      /* What we're timing */
 659         u64     cur_tb_start;                   /* when it started */
 660         struct kvmhv_tb_accumulator rm_entry;   /* real-mode entry code */
 661         struct kvmhv_tb_accumulator rm_intr;    /* real-mode intr handling */
 662         struct kvmhv_tb_accumulator rm_exit;    /* real-mode exit code */
 663         struct kvmhv_tb_accumulator guest_time; /* guest execution */
 664         struct kvmhv_tb_accumulator cede_time;  /* time napping inside guest */
 665
 666         struct dentry *debugfs_dir;
 667         struct dentry *debugfs_timings;
 668 #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
 669 };
 670
 671 #define VCPU_FPR(vcpu, i)       (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
 672
 673 /* Values for vcpu->arch.state */
 674 #define KVMPPC_VCPU_NOTREADY            0
 675 #define KVMPPC_VCPU_RUNNABLE            1
 676 #define KVMPPC_VCPU_BUSY_IN_HOST        2
 677
 678 /* Values for vcpu->arch.io_gpr */
 679 #define KVM_MMIO_REG_MASK       0x001f
 680 #define KVM_MMIO_REG_EXT_MASK   0xffe0
 681 #define KVM_MMIO_REG_GPR        0x0000
 682 #define KVM_MMIO_REG_FPR        0x0020
 683 #define KVM_MMIO_REG_QPR        0x0040
 684 #define KVM_MMIO_REG_FQPR       0x0060
 685
 686 #define __KVM_HAVE_ARCH_WQP
 687 #define __KVM_HAVE_CREATE_DEVICE
 688
 689 static inline void kvm_arch_hardware_disable(void) {}
 690 static inline void kvm_arch_hardware_unsetup(void) {}
 691 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
 692 static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {}
 693 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
 694 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
 695 static inline void kvm_arch_exit(void) {}
 696 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
 697 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
 698 static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
 699
 700 #endif /* __POWERPC_KVM_HOST_H__ */