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 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
  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_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
 145 enum 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 */
 180 struct kvmppc_exit_timing {
 181         union {
 182                 u64 tv64;
 183                 struct {
 184                         u32 tbu, tbl;
 185                 } tv32;
 186         };
 187 };
 188
 189 struct kvmppc_pginfo {
 190         unsigned long pfn;
 191         atomic_t refcnt;
 192 };
 193
 194 struct 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 */
 206 struct kvmppc_xics;
 207 struct kvmppc_icp;
 208
 209 struct 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  */
 219 struct 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
 238 struct kvm_arch_memory_slot {
 239 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 240         unsigned long *rmap;
 241 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 242 };
 243
 244 struct 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
 255 struct kvm_resize_hpt;
 256
 257 struct 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  */
 331 struct 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
 341 struct 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
 351 struct 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
 370 struct 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 */
 386 struct 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
 394 struct kvmppc_irq_map {
 395         u32     r_hwirq;
 396         u32     v_hwirq;
 397         struct irq_desc *desc;
 398 };
 399
 400 #define KVMPPC_PIRQ_MAPPED      1024
 401 struct 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
 428 struct 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
 439 struct mmio_hpte_cache {
 440         struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE];
 441         unsigned int index;
 442 };
 443
 444 struct openpic;
 445
 446 struct 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
 752 static inline void kvm_arch_hardware_disable(void) {}
 753 static inline void kvm_arch_hardware_unsetup(void) {}
 754 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
 755 static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {}
 756 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
 757 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
 758 static inline void kvm_arch_exit(void) {}
 759 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
 760 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
 761 static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
 762
 763 #endif /* __POWERPC_KVM_HOST_H__ */