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_arch {
 245         unsigned int lpid;
 246 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 247         unsigned int tlb_sets;
 248         unsigned long hpt_virt;
 249         struct revmap_entry *revmap;
 250         atomic64_t mmio_update;
 251         unsigned int host_lpid;
 252         unsigned long host_lpcr;
 253         unsigned long sdr1;
 254         unsigned long host_sdr1;
 255         int tlbie_lock;
 256         unsigned long lpcr;
 257         unsigned long vrma_slb_v;
 258         int hpte_setup_done;
 259         u32 hpt_order;
 260         atomic_t vcpus_running;
 261         u32 online_vcores;
 262         unsigned long hpt_npte;
 263         unsigned long hpt_mask;
 264         atomic_t hpte_mod_interest;
 265         cpumask_t need_tlb_flush;
 266         cpumask_t cpu_in_guest;
 267         int hpt_cma_alloc;
 268         u8 radix;
 269         pgd_t *pgtable;
 270         u64 process_table;
 271         struct dentry *debugfs_dir;
 272         struct dentry *htab_dentry;
 273 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 274 #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 275         struct mutex hpt_mutex;
 276 #endif
 277 #ifdef CONFIG_PPC_BOOK3S_64
 278         struct list_head spapr_tce_tables;
 279         struct list_head rtas_tokens;
 280         DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
 281 #endif
 282 #ifdef CONFIG_KVM_MPIC
 283         struct openpic *mpic;
 284 #endif
 285 #ifdef CONFIG_KVM_XICS
 286         struct kvmppc_xics *xics;
 287         struct kvmppc_passthru_irqmap *pimap;
 288 #endif
 289         struct kvmppc_ops *kvm_ops;
 290 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 291         /* This array can grow quite large, keep it at the end */
 292         struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
 293 #endif
 294 };
 295
 296 #define VCORE_ENTRY_MAP(vc)     ((vc)->entry_exit_map & 0xff)
 297 #define VCORE_EXIT_MAP(vc)      ((vc)->entry_exit_map >> 8)
 298 #define VCORE_IS_EXITING(vc)    (VCORE_EXIT_MAP(vc) != 0)
 299
 300 /* This bit is used when a vcore exit is triggered from outside the vcore */
 301 #define VCORE_EXIT_REQ          0x10000
 302
 303 /*
 304  * Values for vcore_state.
 305  * Note that these are arranged such that lower values
 306  * (< VCORE_SLEEPING) don't require stolen time accounting
 307  * on load/unload, and higher values do.
 308  */
 309 #define VCORE_INACTIVE  0
 310 #define VCORE_PREEMPT   1
 311 #define VCORE_PIGGYBACK 2
 312 #define VCORE_SLEEPING  3
 313 #define VCORE_RUNNING   4
 314 #define VCORE_EXITING   5
 315 #define VCORE_POLLING   6
 316
 317 /*
 318  * Struct used to manage memory for a virtual processor area
 319  * registered by a PAPR guest.  There are three types of area
 320  * that a guest can register.
 321  */
 322 struct kvmppc_vpa {
 323         unsigned long gpa;      /* Current guest phys addr */
 324         void *pinned_addr;      /* Address in kernel linear mapping */
 325         void *pinned_end;       /* End of region */
 326         unsigned long next_gpa; /* Guest phys addr for update */
 327         unsigned long len;      /* Number of bytes required */
 328         u8 update_pending;      /* 1 => update pinned_addr from next_gpa */
 329         bool dirty;             /* true => area has been modified by kernel */
 330 };
 331
 332 struct kvmppc_pte {
 333         ulong eaddr;
 334         u64 vpage;
 335         ulong raddr;
 336         bool may_read           : 1;
 337         bool may_write          : 1;
 338         bool may_execute        : 1;
 339         u8 page_size;           /* MMU_PAGE_xxx */
 340 };
 341
 342 struct kvmppc_mmu {
 343         /* book3s_64 only */
 344         void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
 345         u64  (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
 346         u64  (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
 347         void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
 348         void (*slbia)(struct kvm_vcpu *vcpu);
 349         /* book3s */
 350         void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
 351         u32  (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
 352         int  (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
 353                       struct kvmppc_pte *pte, bool data, bool iswrite);
 354         void (*reset_msr)(struct kvm_vcpu *vcpu);
 355         void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
 356         int  (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
 357         u64  (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
 358         bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
 359 };
 360
 361 struct kvmppc_slb {
 362         u64 esid;
 363         u64 vsid;
 364         u64 orige;
 365         u64 origv;
 366         bool valid      : 1;
 367         bool Ks         : 1;
 368         bool Kp         : 1;
 369         bool nx         : 1;
 370         bool large      : 1;    /* PTEs are 16MB */
 371         bool tb         : 1;    /* 1TB segment */
 372         bool class      : 1;
 373         u8 base_page_size;      /* MMU_PAGE_xxx */
 374 };
 375
 376 /* Struct used to accumulate timing information in HV real mode code */
 377 struct kvmhv_tb_accumulator {
 378         u64     seqcount;       /* used to synchronize access, also count * 2 */
 379         u64     tb_total;       /* total time in timebase ticks */
 380         u64     tb_min;         /* min time */
 381         u64     tb_max;         /* max time */
 382 };
 383
 384 #ifdef CONFIG_PPC_BOOK3S_64
 385 struct kvmppc_irq_map {
 386         u32     r_hwirq;
 387         u32     v_hwirq;
 388         struct irq_desc *desc;
 389 };
 390
 391 #define KVMPPC_PIRQ_MAPPED      1024
 392 struct kvmppc_passthru_irqmap {
 393         int n_mapped;
 394         struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED];
 395 };
 396 #endif
 397
 398 # ifdef CONFIG_PPC_FSL_BOOK3E
 399 #define KVMPPC_BOOKE_IAC_NUM    2
 400 #define KVMPPC_BOOKE_DAC_NUM    2
 401 # else
 402 #define KVMPPC_BOOKE_IAC_NUM    4
 403 #define KVMPPC_BOOKE_DAC_NUM    2
 404 # endif
 405 #define KVMPPC_BOOKE_MAX_IAC    4
 406 #define KVMPPC_BOOKE_MAX_DAC    2
 407
 408 /* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
 409 #define KVMPPC_EPR_NONE         0 /* EPR not supported */
 410 #define KVMPPC_EPR_USER         1 /* exit to userspace to fill EPR */
 411 #define KVMPPC_EPR_KERNEL       2 /* in-kernel irqchip */
 412
 413 #define KVMPPC_IRQ_DEFAULT      0
 414 #define KVMPPC_IRQ_MPIC         1
 415 #define KVMPPC_IRQ_XICS         2
 416
 417 #define MMIO_HPTE_CACHE_SIZE    4
 418
 419 struct mmio_hpte_cache_entry {
 420         unsigned long hpte_v;
 421         unsigned long hpte_r;
 422         unsigned long rpte;
 423         unsigned long pte_index;
 424         unsigned long eaddr;
 425         unsigned long slb_v;
 426         long mmio_update;
 427         unsigned int slb_base_pshift;
 428 };
 429
 430 struct mmio_hpte_cache {
 431         struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE];
 432         unsigned int index;
 433 };
 434
 435 struct openpic;
 436
 437 struct kvm_vcpu_arch {
 438         ulong host_stack;
 439         u32 host_pid;
 440 #ifdef CONFIG_PPC_BOOK3S
 441         struct kvmppc_slb slb[64];
 442         int slb_max;            /* 1 + index of last valid entry in slb[] */
 443         int slb_nr;             /* total number of entries in SLB */
 444         struct kvmppc_mmu mmu;
 445         struct kvmppc_vcpu_book3s *book3s;
 446 #endif
 447 #ifdef CONFIG_PPC_BOOK3S_32
 448         struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
 449 #endif
 450
 451         ulong gpr[32];
 452
 453         struct thread_fp_state fp;
 454
 455 #ifdef CONFIG_SPE
 456         ulong evr[32];
 457         ulong spefscr;
 458         ulong host_spefscr;
 459         u64 acc;
 460 #endif
 461 #ifdef CONFIG_ALTIVEC
 462         struct thread_vr_state vr;
 463 #endif
 464
 465 #ifdef CONFIG_KVM_BOOKE_HV
 466         u32 host_mas4;
 467         u32 host_mas6;
 468         u32 shadow_epcr;
 469         u32 shadow_msrp;
 470         u32 eplc;
 471         u32 epsc;
 472         u32 oldpir;
 473 #endif
 474
 475 #if defined(CONFIG_BOOKE)
 476 #if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
 477         u32 epcr;
 478 #endif
 479 #endif
 480
 481 #ifdef CONFIG_PPC_BOOK3S
 482         /* For Gekko paired singles */
 483         u32 qpr[32];
 484 #endif
 485
 486         ulong pc;
 487         ulong ctr;
 488         ulong lr;
 489 #ifdef CONFIG_PPC_BOOK3S
 490         ulong tar;
 491 #endif
 492
 493         ulong xer;
 494         u32 cr;
 495
 496 #ifdef CONFIG_PPC_BOOK3S
 497         ulong hflags;
 498         ulong guest_owned_ext;
 499         ulong purr;
 500         ulong spurr;
 501         ulong ic;
 502         ulong dscr;
 503         ulong amr;
 504         ulong uamor;
 505         ulong iamr;
 506         u32 ctrl;
 507         u32 dabrx;
 508         ulong dabr;
 509         ulong dawr;
 510         ulong dawrx;
 511         ulong ciabr;
 512         ulong cfar;
 513         ulong ppr;
 514         u32 pspb;
 515         ulong fscr;
 516         ulong shadow_fscr;
 517         ulong ebbhr;
 518         ulong ebbrr;
 519         ulong bescr;
 520         ulong csigr;
 521         ulong tacr;
 522         ulong tcscr;
 523         ulong acop;
 524         ulong wort;
 525         ulong tid;
 526         ulong psscr;
 527         ulong shadow_srr1;
 528 #endif
 529         u32 vrsave; /* also USPRG0 */
 530         u32 mmucr;
 531         /* shadow_msr is unused for BookE HV */
 532         ulong shadow_msr;
 533         ulong csrr0;
 534         ulong csrr1;
 535         ulong dsrr0;
 536         ulong dsrr1;
 537         ulong mcsrr0;
 538         ulong mcsrr1;
 539         ulong mcsr;
 540         u32 dec;
 541 #ifdef CONFIG_BOOKE
 542         u32 decar;
 543 #endif
 544         /* Time base value when we entered the guest */
 545         u64 entry_tb;
 546         u64 entry_vtb;
 547         u64 entry_ic;
 548         u32 tcr;
 549         ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
 550         u32 ivor[64];
 551         ulong ivpr;
 552         u32 pvr;
 553
 554         u32 shadow_pid;
 555         u32 shadow_pid1;
 556         u32 pid;
 557         u32 swap_pid;
 558
 559         u32 ccr0;
 560         u32 ccr1;
 561         u32 dbsr;
 562
 563         u64 mmcr[5];
 564         u32 pmc[8];
 565         u32 spmc[2];
 566         u64 siar;
 567         u64 sdar;
 568         u64 sier;
 569 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 570         u64 tfhar;
 571         u64 texasr;
 572         u64 tfiar;
 573
 574         u32 cr_tm;
 575         u64 xer_tm;
 576         u64 lr_tm;
 577         u64 ctr_tm;
 578         u64 amr_tm;
 579         u64 ppr_tm;
 580         u64 dscr_tm;
 581         u64 tar_tm;
 582
 583         ulong gpr_tm[32];
 584
 585         struct thread_fp_state fp_tm;
 586
 587         struct thread_vr_state vr_tm;
 588         u32 vrsave_tm; /* also USPRG0 */
 589
 590 #endif
 591
 592 #ifdef CONFIG_KVM_EXIT_TIMING
 593         struct mutex exit_timing_lock;
 594         struct kvmppc_exit_timing timing_exit;
 595         struct kvmppc_exit_timing timing_last_enter;
 596         u32 last_exit_type;
 597         u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
 598         u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 599         u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 600         u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 601         u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 602         u64 timing_last_exit;
 603         struct dentry *debugfs_exit_timing;
 604 #endif
 605
 606 #ifdef CONFIG_PPC_BOOK3S
 607         ulong fault_dar;
 608         u32 fault_dsisr;
 609         unsigned long intr_msr;
 610         ulong fault_gpa;        /* guest real address of page fault (POWER9) */
 611 #endif
 612
 613 #ifdef CONFIG_BOOKE
 614         ulong fault_dear;
 615         ulong fault_esr;
 616         ulong queued_dear;
 617         ulong queued_esr;
 618         spinlock_t wdt_lock;
 619         struct timer_list wdt_timer;
 620         u32 tlbcfg[4];
 621         u32 tlbps[4];
 622         u32 mmucfg;
 623         u32 eptcfg;
 624         u32 epr;
 625         u64 sprg9;
 626         u32 pwrmgtcr0;
 627         u32 crit_save;
 628         /* guest debug registers*/
 629         struct debug_reg dbg_reg;
 630 #endif
 631         gpa_t paddr_accessed;
 632         gva_t vaddr_accessed;
 633         pgd_t *pgdir;
 634
 635         u8 io_gpr; /* GPR used as IO source/target */
 636         u8 mmio_host_swabbed;
 637         u8 mmio_sign_extend;
 638         u8 osi_needed;
 639         u8 osi_enabled;
 640         u8 papr_enabled;
 641         u8 watchdog_enabled;
 642         u8 sane;
 643         u8 cpu_type;
 644         u8 hcall_needed;
 645         u8 epr_flags; /* KVMPPC_EPR_xxx */
 646         u8 epr_needed;
 647
 648         u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
 649
 650         struct hrtimer dec_timer;
 651         u64 dec_jiffies;
 652         u64 dec_expires;
 653         unsigned long pending_exceptions;
 654         u8 ceded;
 655         u8 prodded;
 656         u32 last_inst;
 657
 658         struct swait_queue_head *wqp;
 659         struct kvmppc_vcore *vcore;
 660         int ret;
 661         int trap;
 662         int state;
 663         int ptid;
 664         int thread_cpu;
 665         int prev_cpu;
 666         bool timer_running;
 667         wait_queue_head_t cpu_run;
 668
 669         struct kvm_vcpu_arch_shared *shared;
 670 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
 671         bool shared_big_endian;
 672 #endif
 673         unsigned long magic_page_pa; /* phys addr to map the magic page to */
 674         unsigned long magic_page_ea; /* effect. addr to map the magic page to */
 675         bool disable_kernel_nx;
 676
 677         int irq_type;           /* one of KVM_IRQ_* */
 678         int irq_cpu_id;
 679         struct openpic *mpic;   /* KVM_IRQ_MPIC */
 680 #ifdef CONFIG_KVM_XICS
 681         struct kvmppc_icp *icp; /* XICS presentation controller */
 682 #endif
 683
 684 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 685         struct kvm_vcpu_arch_shared shregs;
 686
 687         struct mmio_hpte_cache mmio_cache;
 688         unsigned long pgfault_addr;
 689         long pgfault_index;
 690         unsigned long pgfault_hpte[2];
 691         struct mmio_hpte_cache_entry *pgfault_cache;
 692
 693         struct task_struct *run_task;
 694         struct kvm_run *kvm_run;
 695
 696         spinlock_t vpa_update_lock;
 697         struct kvmppc_vpa vpa;
 698         struct kvmppc_vpa dtl;
 699         struct dtl_entry *dtl_ptr;
 700         unsigned long dtl_index;
 701         u64 stolen_logged;
 702         struct kvmppc_vpa slb_shadow;
 703
 704         spinlock_t tbacct_lock;
 705         u64 busy_stolen;
 706         u64 busy_preempt;
 707
 708         u32 emul_inst;
 709 #endif
 710
 711 #ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
 712         struct kvmhv_tb_accumulator *cur_activity;      /* What we're timing */
 713         u64     cur_tb_start;                   /* when it started */
 714         struct kvmhv_tb_accumulator rm_entry;   /* real-mode entry code */
 715         struct kvmhv_tb_accumulator rm_intr;    /* real-mode intr handling */
 716         struct kvmhv_tb_accumulator rm_exit;    /* real-mode exit code */
 717         struct kvmhv_tb_accumulator guest_time; /* guest execution */
 718         struct kvmhv_tb_accumulator cede_time;  /* time napping inside guest */
 719
 720         struct dentry *debugfs_dir;
 721         struct dentry *debugfs_timings;
 722 #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
 723 };
 724
 725 #define VCPU_FPR(vcpu, i)       (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
 726
 727 /* Values for vcpu->arch.state */
 728 #define KVMPPC_VCPU_NOTREADY            0
 729 #define KVMPPC_VCPU_RUNNABLE            1
 730 #define KVMPPC_VCPU_BUSY_IN_HOST        2
 731
 732 /* Values for vcpu->arch.io_gpr */
 733 #define KVM_MMIO_REG_MASK       0x001f
 734 #define KVM_MMIO_REG_EXT_MASK   0xffe0
 735 #define KVM_MMIO_REG_GPR        0x0000
 736 #define KVM_MMIO_REG_FPR        0x0020
 737 #define KVM_MMIO_REG_QPR        0x0040
 738 #define KVM_MMIO_REG_FQPR       0x0060
 739
 740 #define __KVM_HAVE_ARCH_WQP
 741 #define __KVM_HAVE_CREATE_DEVICE
 742
 743 static inline void kvm_arch_hardware_disable(void) {}
 744 static inline void kvm_arch_hardware_unsetup(void) {}
 745 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
 746 static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {}
 747 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
 748 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
 749 static inline void kvm_arch_exit(void) {}
 750 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
 751 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
 752 static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
 753
 754 #endif /* __POWERPC_KVM_HOST_H__ */