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 #ifdef CONFIG_KVM_MMIO
  44 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1
  45 #endif
  46 #define KVM_HALT_POLL_NS_DEFAULT 500000
  47
  48 /* These values are internal and can be increased later */
  49 #define KVM_NR_IRQCHIPS          1
  50 #define KVM_IRQCHIP_NUM_PINS     256
  51
  52 /* PPC-specific vcpu->requests bit members */
  53 #define KVM_REQ_WATCHDOG           8
  54 #define KVM_REQ_EPR_EXIT           9
  55
  56 #include <linux/mmu_notifier.h>
  57
  58 #define KVM_ARCH_WANT_MMU_NOTIFIER
  59
  60 extern int kvm_unmap_hva(struct kvm *kvm, unsigned long hva);
  61 extern int kvm_unmap_hva_range(struct kvm *kvm,
  62                                unsigned long start, unsigned long end);
  63 extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
  64 extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
  65 extern void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
  66
  67 static inline void kvm_arch_mmu_notifier_invalidate_page(struct kvm *kvm,
  68                                                          unsigned long address)
  69 {
  70 }
  71
  72 #define HPTEG_CACHE_NUM                 (1 << 15)
  73 #define HPTEG_HASH_BITS_PTE             13
  74 #define HPTEG_HASH_BITS_PTE_LONG        12
  75 #define HPTEG_HASH_BITS_VPTE            13
  76 #define HPTEG_HASH_BITS_VPTE_LONG       5
  77 #define HPTEG_HASH_BITS_VPTE_64K        11
  78 #define HPTEG_HASH_NUM_PTE              (1 << HPTEG_HASH_BITS_PTE)
  79 #define HPTEG_HASH_NUM_PTE_LONG         (1 << HPTEG_HASH_BITS_PTE_LONG)
  80 #define HPTEG_HASH_NUM_VPTE             (1 << HPTEG_HASH_BITS_VPTE)
  81 #define HPTEG_HASH_NUM_VPTE_LONG        (1 << HPTEG_HASH_BITS_VPTE_LONG)
  82 #define HPTEG_HASH_NUM_VPTE_64K         (1 << HPTEG_HASH_BITS_VPTE_64K)
  83
  84 /* Physical Address Mask - allowed range of real mode RAM access */
  85 #define KVM_PAM                 0x0fffffffffffffffULL
  86
  87 struct lppaca;
  88 struct slb_shadow;
  89 struct dtl_entry;
  90
  91 struct kvmppc_vcpu_book3s;
  92 struct kvmppc_book3s_shadow_vcpu;
  93
  94 struct kvm_vm_stat {
  95         u32 remote_tlb_flush;
  96 };
  97
  98 struct kvm_vcpu_stat {
  99         u32 sum_exits;
 100         u32 mmio_exits;
 101         u32 signal_exits;
 102         u32 light_exits;
 103         /* Account for special types of light exits: */
 104         u32 itlb_real_miss_exits;
 105         u32 itlb_virt_miss_exits;
 106         u32 dtlb_real_miss_exits;
 107         u32 dtlb_virt_miss_exits;
 108         u32 syscall_exits;
 109         u32 isi_exits;
 110         u32 dsi_exits;
 111         u32 emulated_inst_exits;
 112         u32 dec_exits;
 113         u32 ext_intr_exits;
 114         u32 halt_successful_poll;
 115         u32 halt_attempted_poll;
 116         u32 halt_wakeup;
 117         u32 dbell_exits;
 118         u32 gdbell_exits;
 119         u32 ld;
 120         u32 st;
 121 #ifdef CONFIG_PPC_BOOK3S
 122         u32 pf_storage;
 123         u32 pf_instruc;
 124         u32 sp_storage;
 125         u32 sp_instruc;
 126         u32 queue_intr;
 127         u32 ld_slow;
 128         u32 st_slow;
 129 #endif
 130 };
 131
 132 enum kvm_exit_types {
 133         MMIO_EXITS,
 134         SIGNAL_EXITS,
 135         ITLB_REAL_MISS_EXITS,
 136         ITLB_VIRT_MISS_EXITS,
 137         DTLB_REAL_MISS_EXITS,
 138         DTLB_VIRT_MISS_EXITS,
 139         SYSCALL_EXITS,
 140         ISI_EXITS,
 141         DSI_EXITS,
 142         EMULATED_INST_EXITS,
 143         EMULATED_MTMSRWE_EXITS,
 144         EMULATED_WRTEE_EXITS,
 145         EMULATED_MTSPR_EXITS,
 146         EMULATED_MFSPR_EXITS,
 147         EMULATED_MTMSR_EXITS,
 148         EMULATED_MFMSR_EXITS,
 149         EMULATED_TLBSX_EXITS,
 150         EMULATED_TLBWE_EXITS,
 151         EMULATED_RFI_EXITS,
 152         EMULATED_RFCI_EXITS,
 153         EMULATED_RFDI_EXITS,
 154         DEC_EXITS,
 155         EXT_INTR_EXITS,
 156         HALT_WAKEUP,
 157         USR_PR_INST,
 158         FP_UNAVAIL,
 159         DEBUG_EXITS,
 160         TIMEINGUEST,
 161         DBELL_EXITS,
 162         GDBELL_EXITS,
 163         __NUMBER_OF_KVM_EXIT_TYPES
 164 };
 165
 166 /* allow access to big endian 32bit upper/lower parts and 64bit var */
 167 struct kvmppc_exit_timing {
 168         union {
 169                 u64 tv64;
 170                 struct {
 171                         u32 tbu, tbl;
 172                 } tv32;
 173         };
 174 };
 175
 176 struct kvmppc_pginfo {
 177         unsigned long pfn;
 178         atomic_t refcnt;
 179 };
 180
 181 struct kvmppc_spapr_tce_table {
 182         struct list_head list;
 183         struct kvm *kvm;
 184         u64 liobn;
 185         struct rcu_head rcu;
 186         u32 page_shift;
 187         u64 offset;             /* in pages */
 188         u64 size;               /* window size in pages */
 189         struct page *pages[0];
 190 };
 191
 192 /* XICS components, defined in book3s_xics.c */
 193 struct kvmppc_xics;
 194 struct kvmppc_icp;
 195
 196 /*
 197  * The reverse mapping array has one entry for each HPTE,
 198  * which stores the guest's view of the second word of the HPTE
 199  * (including the guest physical address of the mapping),
 200  * plus forward and backward pointers in a doubly-linked ring
 201  * of HPTEs that map the same host page.  The pointers in this
 202  * ring are 32-bit HPTE indexes, to save space.
 203  */
 204 struct revmap_entry {
 205         unsigned long guest_rpte;
 206         unsigned int forw, back;
 207 };
 208
 209 /*
 210  * We use the top bit of each memslot->arch.rmap entry as a lock bit,
 211  * and bit 32 as a present flag.  The bottom 32 bits are the
 212  * index in the guest HPT of a HPTE that points to the page.
 213  */
 214 #define KVMPPC_RMAP_LOCK_BIT    63
 215 #define KVMPPC_RMAP_RC_SHIFT    32
 216 #define KVMPPC_RMAP_CHG_SHIFT   48
 217 #define KVMPPC_RMAP_REFERENCED  (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
 218 #define KVMPPC_RMAP_CHANGED     (HPTE_R_C << KVMPPC_RMAP_RC_SHIFT)
 219 #define KVMPPC_RMAP_CHG_ORDER   (0x3ful << KVMPPC_RMAP_CHG_SHIFT)
 220 #define KVMPPC_RMAP_PRESENT     0x100000000ul
 221 #define KVMPPC_RMAP_INDEX       0xfffffffful
 222
 223 struct kvm_arch_memory_slot {
 224 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 225         unsigned long *rmap;
 226 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 227 };
 228
 229 struct kvm_arch {
 230         unsigned int lpid;
 231 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 232         unsigned long hpt_virt;
 233         struct revmap_entry *revmap;
 234         unsigned int host_lpid;
 235         unsigned long host_lpcr;
 236         unsigned long sdr1;
 237         unsigned long host_sdr1;
 238         int tlbie_lock;
 239         unsigned long lpcr;
 240         unsigned long vrma_slb_v;
 241         int hpte_setup_done;
 242         u32 hpt_order;
 243         atomic_t vcpus_running;
 244         u32 online_vcores;
 245         unsigned long hpt_npte;
 246         unsigned long hpt_mask;
 247         atomic_t hpte_mod_interest;
 248         cpumask_t need_tlb_flush;
 249         int hpt_cma_alloc;
 250         struct dentry *debugfs_dir;
 251         struct dentry *htab_dentry;
 252 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 253 #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 254         struct mutex hpt_mutex;
 255 #endif
 256 #ifdef CONFIG_PPC_BOOK3S_64
 257         struct list_head spapr_tce_tables;
 258         struct list_head rtas_tokens;
 259         DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
 260 #endif
 261 #ifdef CONFIG_KVM_MPIC
 262         struct openpic *mpic;
 263 #endif
 264 #ifdef CONFIG_KVM_XICS
 265         struct kvmppc_xics *xics;
 266 #endif
 267         struct kvmppc_ops *kvm_ops;
 268 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 269         /* This array can grow quite large, keep it at the end */
 270         struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
 271 #endif
 272 };
 273
 274 /*
 275  * Struct for a virtual core.
 276  * Note: entry_exit_map combines a bitmap of threads that have entered
 277  * in the bottom 8 bits and a bitmap of threads that have exited in the
 278  * next 8 bits.  This is so that we can atomically set the entry bit
 279  * iff the exit map is 0 without taking a lock.
 280  */
 281 struct kvmppc_vcore {
 282         int n_runnable;
 283         int num_threads;
 284         int entry_exit_map;
 285         int napping_threads;
 286         int first_vcpuid;
 287         u16 pcpu;
 288         u16 last_cpu;
 289         u8 vcore_state;
 290         u8 in_guest;
 291         struct kvmppc_vcore *master_vcore;
 292         struct list_head runnable_threads;
 293         struct list_head preempt_list;
 294         spinlock_t lock;
 295         struct swait_queue_head wq;
 296         spinlock_t stoltb_lock; /* protects stolen_tb and preempt_tb */
 297         u64 stolen_tb;
 298         u64 preempt_tb;
 299         struct kvm_vcpu *runner;
 300         struct kvm *kvm;
 301         u64 tb_offset;          /* guest timebase - host timebase */
 302         ulong lpcr;
 303         u32 arch_compat;
 304         ulong pcr;
 305         ulong dpdes;            /* doorbell state (POWER8) */
 306         ulong conferring_threads;
 307 };
 308
 309 #define VCORE_ENTRY_MAP(vc)     ((vc)->entry_exit_map & 0xff)
 310 #define VCORE_EXIT_MAP(vc)      ((vc)->entry_exit_map >> 8)
 311 #define VCORE_IS_EXITING(vc)    (VCORE_EXIT_MAP(vc) != 0)
 312
 313 /* This bit is used when a vcore exit is triggered from outside the vcore */
 314 #define VCORE_EXIT_REQ          0x10000
 315
 316 /*
 317  * Values for vcore_state.
 318  * Note that these are arranged such that lower values
 319  * (< VCORE_SLEEPING) don't require stolen time accounting
 320  * on load/unload, and higher values do.
 321  */
 322 #define VCORE_INACTIVE  0
 323 #define VCORE_PREEMPT   1
 324 #define VCORE_PIGGYBACK 2
 325 #define VCORE_SLEEPING  3
 326 #define VCORE_RUNNING   4
 327 #define VCORE_EXITING   5
 328
 329 /*
 330  * Struct used to manage memory for a virtual processor area
 331  * registered by a PAPR guest.  There are three types of area
 332  * that a guest can register.
 333  */
 334 struct kvmppc_vpa {
 335         unsigned long gpa;      /* Current guest phys addr */
 336         void *pinned_addr;      /* Address in kernel linear mapping */
 337         void *pinned_end;       /* End of region */
 338         unsigned long next_gpa; /* Guest phys addr for update */
 339         unsigned long len;      /* Number of bytes required */
 340         u8 update_pending;      /* 1 => update pinned_addr from next_gpa */
 341         bool dirty;             /* true => area has been modified by kernel */
 342 };
 343
 344 struct kvmppc_pte {
 345         ulong eaddr;
 346         u64 vpage;
 347         ulong raddr;
 348         bool may_read           : 1;
 349         bool may_write          : 1;
 350         bool may_execute        : 1;
 351         u8 page_size;           /* MMU_PAGE_xxx */
 352 };
 353
 354 struct kvmppc_mmu {
 355         /* book3s_64 only */
 356         void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
 357         u64  (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
 358         u64  (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
 359         void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
 360         void (*slbia)(struct kvm_vcpu *vcpu);
 361         /* book3s */
 362         void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
 363         u32  (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
 364         int  (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
 365                       struct kvmppc_pte *pte, bool data, bool iswrite);
 366         void (*reset_msr)(struct kvm_vcpu *vcpu);
 367         void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
 368         int  (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
 369         u64  (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
 370         bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
 371 };
 372
 373 struct kvmppc_slb {
 374         u64 esid;
 375         u64 vsid;
 376         u64 orige;
 377         u64 origv;
 378         bool valid      : 1;
 379         bool Ks         : 1;
 380         bool Kp         : 1;
 381         bool nx         : 1;
 382         bool large      : 1;    /* PTEs are 16MB */
 383         bool tb         : 1;    /* 1TB segment */
 384         bool class      : 1;
 385         u8 base_page_size;      /* MMU_PAGE_xxx */
 386 };
 387
 388 /* Struct used to accumulate timing information in HV real mode code */
 389 struct kvmhv_tb_accumulator {
 390         u64     seqcount;       /* used to synchronize access, also count * 2 */
 391         u64     tb_total;       /* total time in timebase ticks */
 392         u64     tb_min;         /* min time */
 393         u64     tb_max;         /* max time */
 394 };
 395
 396 # ifdef CONFIG_PPC_FSL_BOOK3E
 397 #define KVMPPC_BOOKE_IAC_NUM    2
 398 #define KVMPPC_BOOKE_DAC_NUM    2
 399 # else
 400 #define KVMPPC_BOOKE_IAC_NUM    4
 401 #define KVMPPC_BOOKE_DAC_NUM    2
 402 # endif
 403 #define KVMPPC_BOOKE_MAX_IAC    4
 404 #define KVMPPC_BOOKE_MAX_DAC    2
 405
 406 /* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
 407 #define KVMPPC_EPR_NONE         0 /* EPR not supported */
 408 #define KVMPPC_EPR_USER         1 /* exit to userspace to fill EPR */
 409 #define KVMPPC_EPR_KERNEL       2 /* in-kernel irqchip */
 410
 411 #define KVMPPC_IRQ_DEFAULT      0
 412 #define KVMPPC_IRQ_MPIC         1
 413 #define KVMPPC_IRQ_XICS         2
 414
 415 struct openpic;
 416
 417 struct kvm_vcpu_arch {
 418         ulong host_stack;
 419         u32 host_pid;
 420 #ifdef CONFIG_PPC_BOOK3S
 421         struct kvmppc_slb slb[64];
 422         int slb_max;            /* 1 + index of last valid entry in slb[] */
 423         int slb_nr;             /* total number of entries in SLB */
 424         struct kvmppc_mmu mmu;
 425         struct kvmppc_vcpu_book3s *book3s;
 426 #endif
 427 #ifdef CONFIG_PPC_BOOK3S_32
 428         struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
 429 #endif
 430
 431         ulong gpr[32];
 432
 433         struct thread_fp_state fp;
 434
 435 #ifdef CONFIG_SPE
 436         ulong evr[32];
 437         ulong spefscr;
 438         ulong host_spefscr;
 439         u64 acc;
 440 #endif
 441 #ifdef CONFIG_ALTIVEC
 442         struct thread_vr_state vr;
 443 #endif
 444
 445 #ifdef CONFIG_KVM_BOOKE_HV
 446         u32 host_mas4;
 447         u32 host_mas6;
 448         u32 shadow_epcr;
 449         u32 shadow_msrp;
 450         u32 eplc;
 451         u32 epsc;
 452         u32 oldpir;
 453 #endif
 454
 455 #if defined(CONFIG_BOOKE)
 456 #if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
 457         u32 epcr;
 458 #endif
 459 #endif
 460
 461 #ifdef CONFIG_PPC_BOOK3S
 462         /* For Gekko paired singles */
 463         u32 qpr[32];
 464 #endif
 465
 466         ulong pc;
 467         ulong ctr;
 468         ulong lr;
 469 #ifdef CONFIG_PPC_BOOK3S
 470         ulong tar;
 471 #endif
 472
 473         ulong xer;
 474         u32 cr;
 475
 476 #ifdef CONFIG_PPC_BOOK3S
 477         ulong hflags;
 478         ulong guest_owned_ext;
 479         ulong purr;
 480         ulong spurr;
 481         ulong ic;
 482         ulong vtb;
 483         ulong dscr;
 484         ulong amr;
 485         ulong uamor;
 486         ulong iamr;
 487         u32 ctrl;
 488         u32 dabrx;
 489         ulong dabr;
 490         ulong dawr;
 491         ulong dawrx;
 492         ulong ciabr;
 493         ulong cfar;
 494         ulong ppr;
 495         u32 pspb;
 496         ulong fscr;
 497         ulong shadow_fscr;
 498         ulong ebbhr;
 499         ulong ebbrr;
 500         ulong bescr;
 501         ulong csigr;
 502         ulong tacr;
 503         ulong tcscr;
 504         ulong acop;
 505         ulong wort;
 506         ulong shadow_srr1;
 507 #endif
 508         u32 vrsave; /* also USPRG0 */
 509         u32 mmucr;
 510         /* shadow_msr is unused for BookE HV */
 511         ulong shadow_msr;
 512         ulong csrr0;
 513         ulong csrr1;
 514         ulong dsrr0;
 515         ulong dsrr1;
 516         ulong mcsrr0;
 517         ulong mcsrr1;
 518         ulong mcsr;
 519         u32 dec;
 520 #ifdef CONFIG_BOOKE
 521         u32 decar;
 522 #endif
 523         /* Time base value when we entered the guest */
 524         u64 entry_tb;
 525         u64 entry_vtb;
 526         u64 entry_ic;
 527         u32 tcr;
 528         ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
 529         u32 ivor[64];
 530         ulong ivpr;
 531         u32 pvr;
 532
 533         u32 shadow_pid;
 534         u32 shadow_pid1;
 535         u32 pid;
 536         u32 swap_pid;
 537
 538         u32 ccr0;
 539         u32 ccr1;
 540         u32 dbsr;
 541
 542         u64 mmcr[5];
 543         u32 pmc[8];
 544         u32 spmc[2];
 545         u64 siar;
 546         u64 sdar;
 547         u64 sier;
 548 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 549         u64 tfhar;
 550         u64 texasr;
 551         u64 tfiar;
 552
 553         u32 cr_tm;
 554         u64 lr_tm;
 555         u64 ctr_tm;
 556         u64 amr_tm;
 557         u64 ppr_tm;
 558         u64 dscr_tm;
 559         u64 tar_tm;
 560
 561         ulong gpr_tm[32];
 562
 563         struct thread_fp_state fp_tm;
 564
 565         struct thread_vr_state vr_tm;
 566         u32 vrsave_tm; /* also USPRG0 */
 567
 568 #endif
 569
 570 #ifdef CONFIG_KVM_EXIT_TIMING
 571         struct mutex exit_timing_lock;
 572         struct kvmppc_exit_timing timing_exit;
 573         struct kvmppc_exit_timing timing_last_enter;
 574         u32 last_exit_type;
 575         u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
 576         u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 577         u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 578         u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 579         u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 580         u64 timing_last_exit;
 581         struct dentry *debugfs_exit_timing;
 582 #endif
 583
 584 #ifdef CONFIG_PPC_BOOK3S
 585         ulong fault_dar;
 586         u32 fault_dsisr;
 587         unsigned long intr_msr;
 588 #endif
 589
 590 #ifdef CONFIG_BOOKE
 591         ulong fault_dear;
 592         ulong fault_esr;
 593         ulong queued_dear;
 594         ulong queued_esr;
 595         spinlock_t wdt_lock;
 596         struct timer_list wdt_timer;
 597         u32 tlbcfg[4];
 598         u32 tlbps[4];
 599         u32 mmucfg;
 600         u32 eptcfg;
 601         u32 epr;
 602         u64 sprg9;
 603         u32 pwrmgtcr0;
 604         u32 crit_save;
 605         /* guest debug registers*/
 606         struct debug_reg dbg_reg;
 607 #endif
 608         gpa_t paddr_accessed;
 609         gva_t vaddr_accessed;
 610         pgd_t *pgdir;
 611
 612         u8 io_gpr; /* GPR used as IO source/target */
 613         u8 mmio_host_swabbed;
 614         u8 mmio_sign_extend;
 615         u8 osi_needed;
 616         u8 osi_enabled;
 617         u8 papr_enabled;
 618         u8 watchdog_enabled;
 619         u8 sane;
 620         u8 cpu_type;
 621         u8 hcall_needed;
 622         u8 epr_flags; /* KVMPPC_EPR_xxx */
 623         u8 epr_needed;
 624
 625         u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
 626
 627         struct hrtimer dec_timer;
 628         u64 dec_jiffies;
 629         u64 dec_expires;
 630         unsigned long pending_exceptions;
 631         u8 ceded;
 632         u8 prodded;
 633         u32 last_inst;
 634
 635         struct swait_queue_head *wqp;
 636         struct kvmppc_vcore *vcore;
 637         int ret;
 638         int trap;
 639         int state;
 640         int ptid;
 641         int thread_cpu;
 642         bool timer_running;
 643         wait_queue_head_t cpu_run;
 644
 645         struct kvm_vcpu_arch_shared *shared;
 646 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
 647         bool shared_big_endian;
 648 #endif
 649         unsigned long magic_page_pa; /* phys addr to map the magic page to */
 650         unsigned long magic_page_ea; /* effect. addr to map the magic page to */
 651         bool disable_kernel_nx;
 652
 653         int irq_type;           /* one of KVM_IRQ_* */
 654         int irq_cpu_id;
 655         struct openpic *mpic;   /* KVM_IRQ_MPIC */
 656 #ifdef CONFIG_KVM_XICS
 657         struct kvmppc_icp *icp; /* XICS presentation controller */
 658 #endif
 659
 660 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 661         struct kvm_vcpu_arch_shared shregs;
 662
 663         unsigned long pgfault_addr;
 664         long pgfault_index;
 665         unsigned long pgfault_hpte[2];
 666
 667         struct list_head run_list;
 668         struct task_struct *run_task;
 669         struct kvm_run *kvm_run;
 670
 671         spinlock_t vpa_update_lock;
 672         struct kvmppc_vpa vpa;
 673         struct kvmppc_vpa dtl;
 674         struct dtl_entry *dtl_ptr;
 675         unsigned long dtl_index;
 676         u64 stolen_logged;
 677         struct kvmppc_vpa slb_shadow;
 678
 679         spinlock_t tbacct_lock;
 680         u64 busy_stolen;
 681         u64 busy_preempt;
 682
 683         u32 emul_inst;
 684 #endif
 685
 686 #ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
 687         struct kvmhv_tb_accumulator *cur_activity;      /* What we're timing */
 688         u64     cur_tb_start;                   /* when it started */
 689         struct kvmhv_tb_accumulator rm_entry;   /* real-mode entry code */
 690         struct kvmhv_tb_accumulator rm_intr;    /* real-mode intr handling */
 691         struct kvmhv_tb_accumulator rm_exit;    /* real-mode exit code */
 692         struct kvmhv_tb_accumulator guest_time; /* guest execution */
 693         struct kvmhv_tb_accumulator cede_time;  /* time napping inside guest */
 694
 695         struct dentry *debugfs_dir;
 696         struct dentry *debugfs_timings;
 697 #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
 698 };
 699
 700 #define VCPU_FPR(vcpu, i)       (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
 701
 702 /* Values for vcpu->arch.state */
 703 #define KVMPPC_VCPU_NOTREADY            0
 704 #define KVMPPC_VCPU_RUNNABLE            1
 705 #define KVMPPC_VCPU_BUSY_IN_HOST        2
 706
 707 /* Values for vcpu->arch.io_gpr */
 708 #define KVM_MMIO_REG_MASK       0x001f
 709 #define KVM_MMIO_REG_EXT_MASK   0xffe0
 710 #define KVM_MMIO_REG_GPR        0x0000
 711 #define KVM_MMIO_REG_FPR        0x0020
 712 #define KVM_MMIO_REG_QPR        0x0040
 713 #define KVM_MMIO_REG_FQPR       0x0060
 714
 715 #define __KVM_HAVE_ARCH_WQP
 716 #define __KVM_HAVE_CREATE_DEVICE
 717
 718 static inline void kvm_arch_hardware_disable(void) {}
 719 static inline void kvm_arch_hardware_unsetup(void) {}
 720 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
 721 static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {}
 722 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
 723 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
 724 static inline void kvm_arch_exit(void) {}
 725 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
 726 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
 727
 728 #endif /* __POWERPC_KVM_HOST_H__ */