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 32
  42 #define KVM_MEM_SLOTS_NUM KVM_USER_MEM_SLOTS
  43
  44 #ifdef CONFIG_KVM_MMIO
  45 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1
  46 #endif
  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 #include <linux/mmu_notifier.h>
  53
  54 #define KVM_ARCH_WANT_MMU_NOTIFIER
  55
  56 extern int kvm_unmap_hva(struct kvm *kvm, unsigned long hva);
  57 extern int kvm_unmap_hva_range(struct kvm *kvm,
  58                                unsigned long start, unsigned long end);
  59 extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
  60 extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
  61 extern void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
  62
  63 static inline void kvm_arch_mmu_notifier_invalidate_page(struct kvm *kvm,
  64                                                          unsigned long address)
  65 {
  66 }
  67
  68 #define HPTEG_CACHE_NUM                 (1 << 15)
  69 #define HPTEG_HASH_BITS_PTE             13
  70 #define HPTEG_HASH_BITS_PTE_LONG        12
  71 #define HPTEG_HASH_BITS_VPTE            13
  72 #define HPTEG_HASH_BITS_VPTE_LONG       5
  73 #define HPTEG_HASH_BITS_VPTE_64K        11
  74 #define HPTEG_HASH_NUM_PTE              (1 << HPTEG_HASH_BITS_PTE)
  75 #define HPTEG_HASH_NUM_PTE_LONG         (1 << HPTEG_HASH_BITS_PTE_LONG)
  76 #define HPTEG_HASH_NUM_VPTE             (1 << HPTEG_HASH_BITS_VPTE)
  77 #define HPTEG_HASH_NUM_VPTE_LONG        (1 << HPTEG_HASH_BITS_VPTE_LONG)
  78 #define HPTEG_HASH_NUM_VPTE_64K         (1 << HPTEG_HASH_BITS_VPTE_64K)
  79
  80 /* Physical Address Mask - allowed range of real mode RAM access */
  81 #define KVM_PAM                 0x0fffffffffffffffULL
  82
  83 struct lppaca;
  84 struct slb_shadow;
  85 struct dtl_entry;
  86
  87 struct kvmppc_vcpu_book3s;
  88 struct kvmppc_book3s_shadow_vcpu;
  89
  90 struct kvm_vm_stat {
  91         u32 remote_tlb_flush;
  92 };
  93
  94 struct kvm_vcpu_stat {
  95         u32 sum_exits;
  96         u32 mmio_exits;
  97         u32 signal_exits;
  98         u32 light_exits;
  99         /* Account for special types of light exits: */
 100         u32 itlb_real_miss_exits;
 101         u32 itlb_virt_miss_exits;
 102         u32 dtlb_real_miss_exits;
 103         u32 dtlb_virt_miss_exits;
 104         u32 syscall_exits;
 105         u32 isi_exits;
 106         u32 dsi_exits;
 107         u32 emulated_inst_exits;
 108         u32 dec_exits;
 109         u32 ext_intr_exits;
 110         u32 halt_successful_poll;
 111         u32 halt_wakeup;
 112         u32 dbell_exits;
 113         u32 gdbell_exits;
 114         u32 ld;
 115         u32 st;
 116 #ifdef CONFIG_PPC_BOOK3S
 117         u32 pf_storage;
 118         u32 pf_instruc;
 119         u32 sp_storage;
 120         u32 sp_instruc;
 121         u32 queue_intr;
 122         u32 ld_slow;
 123         u32 st_slow;
 124 #endif
 125 };
 126
 127 enum kvm_exit_types {
 128         MMIO_EXITS,
 129         SIGNAL_EXITS,
 130         ITLB_REAL_MISS_EXITS,
 131         ITLB_VIRT_MISS_EXITS,
 132         DTLB_REAL_MISS_EXITS,
 133         DTLB_VIRT_MISS_EXITS,
 134         SYSCALL_EXITS,
 135         ISI_EXITS,
 136         DSI_EXITS,
 137         EMULATED_INST_EXITS,
 138         EMULATED_MTMSRWE_EXITS,
 139         EMULATED_WRTEE_EXITS,
 140         EMULATED_MTSPR_EXITS,
 141         EMULATED_MFSPR_EXITS,
 142         EMULATED_MTMSR_EXITS,
 143         EMULATED_MFMSR_EXITS,
 144         EMULATED_TLBSX_EXITS,
 145         EMULATED_TLBWE_EXITS,
 146         EMULATED_RFI_EXITS,
 147         EMULATED_RFCI_EXITS,
 148         EMULATED_RFDI_EXITS,
 149         DEC_EXITS,
 150         EXT_INTR_EXITS,
 151         HALT_WAKEUP,
 152         USR_PR_INST,
 153         FP_UNAVAIL,
 154         DEBUG_EXITS,
 155         TIMEINGUEST,
 156         DBELL_EXITS,
 157         GDBELL_EXITS,
 158         __NUMBER_OF_KVM_EXIT_TYPES
 159 };
 160
 161 /* allow access to big endian 32bit upper/lower parts and 64bit var */
 162 struct kvmppc_exit_timing {
 163         union {
 164                 u64 tv64;
 165                 struct {
 166                         u32 tbu, tbl;
 167                 } tv32;
 168         };
 169 };
 170
 171 struct kvmppc_pginfo {
 172         unsigned long pfn;
 173         atomic_t refcnt;
 174 };
 175
 176 struct kvmppc_spapr_tce_table {
 177         struct list_head list;
 178         struct kvm *kvm;
 179         u64 liobn;
 180         u32 window_size;
 181         struct page *pages[0];
 182 };
 183
 184 /* XICS components, defined in book3s_xics.c */
 185 struct kvmppc_xics;
 186 struct kvmppc_icp;
 187
 188 /*
 189  * The reverse mapping array has one entry for each HPTE,
 190  * which stores the guest's view of the second word of the HPTE
 191  * (including the guest physical address of the mapping),
 192  * plus forward and backward pointers in a doubly-linked ring
 193  * of HPTEs that map the same host page.  The pointers in this
 194  * ring are 32-bit HPTE indexes, to save space.
 195  */
 196 struct revmap_entry {
 197         unsigned long guest_rpte;
 198         unsigned int forw, back;
 199 };
 200
 201 /*
 202  * We use the top bit of each memslot->arch.rmap entry as a lock bit,
 203  * and bit 32 as a present flag.  The bottom 32 bits are the
 204  * index in the guest HPT of a HPTE that points to the page.
 205  */
 206 #define KVMPPC_RMAP_LOCK_BIT    63
 207 #define KVMPPC_RMAP_RC_SHIFT    32
 208 #define KVMPPC_RMAP_CHG_SHIFT   48
 209 #define KVMPPC_RMAP_REFERENCED  (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
 210 #define KVMPPC_RMAP_CHANGED     (HPTE_R_C << KVMPPC_RMAP_RC_SHIFT)
 211 #define KVMPPC_RMAP_CHG_ORDER   (0x3ful << KVMPPC_RMAP_CHG_SHIFT)
 212 #define KVMPPC_RMAP_PRESENT     0x100000000ul
 213 #define KVMPPC_RMAP_INDEX       0xfffffffful
 214
 215 struct kvm_arch_memory_slot {
 216 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 217         unsigned long *rmap;
 218 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 219 };
 220
 221 struct kvm_arch {
 222         unsigned int lpid;
 223 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 224         unsigned long hpt_virt;
 225         struct revmap_entry *revmap;
 226         unsigned int host_lpid;
 227         unsigned long host_lpcr;
 228         unsigned long sdr1;
 229         unsigned long host_sdr1;
 230         int tlbie_lock;
 231         unsigned long lpcr;
 232         unsigned long vrma_slb_v;
 233         int hpte_setup_done;
 234         u32 hpt_order;
 235         atomic_t vcpus_running;
 236         u32 online_vcores;
 237         unsigned long hpt_npte;
 238         unsigned long hpt_mask;
 239         atomic_t hpte_mod_interest;
 240         cpumask_t need_tlb_flush;
 241         int hpt_cma_alloc;
 242         struct dentry *debugfs_dir;
 243         struct dentry *htab_dentry;
 244 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 245 #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 246         struct mutex hpt_mutex;
 247 #endif
 248 #ifdef CONFIG_PPC_BOOK3S_64
 249         struct list_head spapr_tce_tables;
 250         struct list_head rtas_tokens;
 251         DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
 252 #endif
 253 #ifdef CONFIG_KVM_MPIC
 254         struct openpic *mpic;
 255 #endif
 256 #ifdef CONFIG_KVM_XICS
 257         struct kvmppc_xics *xics;
 258 #endif
 259         struct kvmppc_ops *kvm_ops;
 260 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 261         /* This array can grow quite large, keep it at the end */
 262         struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
 263 #endif
 264 };
 265
 266 /*
 267  * Struct for a virtual core.
 268  * Note: entry_exit_map combines a bitmap of threads that have entered
 269  * in the bottom 8 bits and a bitmap of threads that have exited in the
 270  * next 8 bits.  This is so that we can atomically set the entry bit
 271  * iff the exit map is 0 without taking a lock.
 272  */
 273 struct kvmppc_vcore {
 274         int n_runnable;
 275         int num_threads;
 276         int entry_exit_map;
 277         int napping_threads;
 278         int first_vcpuid;
 279         u16 pcpu;
 280         u16 last_cpu;
 281         u8 vcore_state;
 282         u8 in_guest;
 283         struct kvmppc_vcore *master_vcore;
 284         struct list_head runnable_threads;
 285         struct list_head preempt_list;
 286         spinlock_t lock;
 287         wait_queue_head_t wq;
 288         spinlock_t stoltb_lock; /* protects stolen_tb and preempt_tb */
 289         u64 stolen_tb;
 290         u64 preempt_tb;
 291         struct kvm_vcpu *runner;
 292         struct kvm *kvm;
 293         u64 tb_offset;          /* guest timebase - host timebase */
 294         ulong lpcr;
 295         u32 arch_compat;
 296         ulong pcr;
 297         ulong dpdes;            /* doorbell state (POWER8) */
 298         void *mpp_buffer; /* Micro Partition Prefetch buffer */
 299         bool mpp_buffer_is_valid;
 300         ulong conferring_threads;
 301 };
 302
 303 #define VCORE_ENTRY_MAP(vc)     ((vc)->entry_exit_map & 0xff)
 304 #define VCORE_EXIT_MAP(vc)      ((vc)->entry_exit_map >> 8)
 305 #define VCORE_IS_EXITING(vc)    (VCORE_EXIT_MAP(vc) != 0)
 306
 307 /* This bit is used when a vcore exit is triggered from outside the vcore */
 308 #define VCORE_EXIT_REQ          0x10000
 309
 310 /*
 311  * Values for vcore_state.
 312  * Note that these are arranged such that lower values
 313  * (< VCORE_SLEEPING) don't require stolen time accounting
 314  * on load/unload, and higher values do.
 315  */
 316 #define VCORE_INACTIVE  0
 317 #define VCORE_PREEMPT   1
 318 #define VCORE_PIGGYBACK 2
 319 #define VCORE_SLEEPING  3
 320 #define VCORE_RUNNING   4
 321 #define VCORE_EXITING   5
 322
 323 /*
 324  * Struct used to manage memory for a virtual processor area
 325  * registered by a PAPR guest.  There are three types of area
 326  * that a guest can register.
 327  */
 328 struct kvmppc_vpa {
 329         unsigned long gpa;      /* Current guest phys addr */
 330         void *pinned_addr;      /* Address in kernel linear mapping */
 331         void *pinned_end;       /* End of region */
 332         unsigned long next_gpa; /* Guest phys addr for update */
 333         unsigned long len;      /* Number of bytes required */
 334         u8 update_pending;      /* 1 => update pinned_addr from next_gpa */
 335         bool dirty;             /* true => area has been modified by kernel */
 336 };
 337
 338 struct kvmppc_pte {
 339         ulong eaddr;
 340         u64 vpage;
 341         ulong raddr;
 342         bool may_read           : 1;
 343         bool may_write          : 1;
 344         bool may_execute        : 1;
 345         u8 page_size;           /* MMU_PAGE_xxx */
 346 };
 347
 348 struct kvmppc_mmu {
 349         /* book3s_64 only */
 350         void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
 351         u64  (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
 352         u64  (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
 353         void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
 354         void (*slbia)(struct kvm_vcpu *vcpu);
 355         /* book3s */
 356         void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
 357         u32  (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
 358         int  (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
 359                       struct kvmppc_pte *pte, bool data, bool iswrite);
 360         void (*reset_msr)(struct kvm_vcpu *vcpu);
 361         void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
 362         int  (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
 363         u64  (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
 364         bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
 365 };
 366
 367 struct kvmppc_slb {
 368         u64 esid;
 369         u64 vsid;
 370         u64 orige;
 371         u64 origv;
 372         bool valid      : 1;
 373         bool Ks         : 1;
 374         bool Kp         : 1;
 375         bool nx         : 1;
 376         bool large      : 1;    /* PTEs are 16MB */
 377         bool tb         : 1;    /* 1TB segment */
 378         bool class      : 1;
 379         u8 base_page_size;      /* MMU_PAGE_xxx */
 380 };
 381
 382 /* Struct used to accumulate timing information in HV real mode code */
 383 struct kvmhv_tb_accumulator {
 384         u64     seqcount;       /* used to synchronize access, also count * 2 */
 385         u64     tb_total;       /* total time in timebase ticks */
 386         u64     tb_min;         /* min time */
 387         u64     tb_max;         /* max time */
 388 };
 389
 390 # ifdef CONFIG_PPC_FSL_BOOK3E
 391 #define KVMPPC_BOOKE_IAC_NUM    2
 392 #define KVMPPC_BOOKE_DAC_NUM    2
 393 # else
 394 #define KVMPPC_BOOKE_IAC_NUM    4
 395 #define KVMPPC_BOOKE_DAC_NUM    2
 396 # endif
 397 #define KVMPPC_BOOKE_MAX_IAC    4
 398 #define KVMPPC_BOOKE_MAX_DAC    2
 399
 400 /* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
 401 #define KVMPPC_EPR_NONE         0 /* EPR not supported */
 402 #define KVMPPC_EPR_USER         1 /* exit to userspace to fill EPR */
 403 #define KVMPPC_EPR_KERNEL       2 /* in-kernel irqchip */
 404
 405 #define KVMPPC_IRQ_DEFAULT      0
 406 #define KVMPPC_IRQ_MPIC         1
 407 #define KVMPPC_IRQ_XICS         2
 408
 409 struct openpic;
 410
 411 struct kvm_vcpu_arch {
 412         ulong host_stack;
 413         u32 host_pid;
 414 #ifdef CONFIG_PPC_BOOK3S
 415         struct kvmppc_slb slb[64];
 416         int slb_max;            /* 1 + index of last valid entry in slb[] */
 417         int slb_nr;             /* total number of entries in SLB */
 418         struct kvmppc_mmu mmu;
 419         struct kvmppc_vcpu_book3s *book3s;
 420 #endif
 421 #ifdef CONFIG_PPC_BOOK3S_32
 422         struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
 423 #endif
 424
 425         ulong gpr[32];
 426
 427         struct thread_fp_state fp;
 428
 429 #ifdef CONFIG_SPE
 430         ulong evr[32];
 431         ulong spefscr;
 432         ulong host_spefscr;
 433         u64 acc;
 434 #endif
 435 #ifdef CONFIG_ALTIVEC
 436         struct thread_vr_state vr;
 437 #endif
 438
 439 #ifdef CONFIG_KVM_BOOKE_HV
 440         u32 host_mas4;
 441         u32 host_mas6;
 442         u32 shadow_epcr;
 443         u32 shadow_msrp;
 444         u32 eplc;
 445         u32 epsc;
 446         u32 oldpir;
 447 #endif
 448
 449 #if defined(CONFIG_BOOKE)
 450 #if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
 451         u32 epcr;
 452 #endif
 453 #endif
 454
 455 #ifdef CONFIG_PPC_BOOK3S
 456         /* For Gekko paired singles */
 457         u32 qpr[32];
 458 #endif
 459
 460         ulong pc;
 461         ulong ctr;
 462         ulong lr;
 463 #ifdef CONFIG_PPC_BOOK3S
 464         ulong tar;
 465 #endif
 466
 467         ulong xer;
 468         u32 cr;
 469
 470 #ifdef CONFIG_PPC_BOOK3S
 471         ulong hflags;
 472         ulong guest_owned_ext;
 473         ulong purr;
 474         ulong spurr;
 475         ulong ic;
 476         ulong vtb;
 477         ulong dscr;
 478         ulong amr;
 479         ulong uamor;
 480         ulong iamr;
 481         u32 ctrl;
 482         u32 dabrx;
 483         ulong dabr;
 484         ulong dawr;
 485         ulong dawrx;
 486         ulong ciabr;
 487         ulong cfar;
 488         ulong ppr;
 489         u32 pspb;
 490         ulong fscr;
 491         ulong shadow_fscr;
 492         ulong ebbhr;
 493         ulong ebbrr;
 494         ulong bescr;
 495         ulong csigr;
 496         ulong tacr;
 497         ulong tcscr;
 498         ulong acop;
 499         ulong wort;
 500         ulong shadow_srr1;
 501 #endif
 502         u32 vrsave; /* also USPRG0 */
 503         u32 mmucr;
 504         /* shadow_msr is unused for BookE HV */
 505         ulong shadow_msr;
 506         ulong csrr0;
 507         ulong csrr1;
 508         ulong dsrr0;
 509         ulong dsrr1;
 510         ulong mcsrr0;
 511         ulong mcsrr1;
 512         ulong mcsr;
 513         u32 dec;
 514 #ifdef CONFIG_BOOKE
 515         u32 decar;
 516 #endif
 517         /* Time base value when we entered the guest */
 518         u64 entry_tb;
 519         u64 entry_vtb;
 520         u64 entry_ic;
 521         u32 tcr;
 522         ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
 523         u32 ivor[64];
 524         ulong ivpr;
 525         u32 pvr;
 526
 527         u32 shadow_pid;
 528         u32 shadow_pid1;
 529         u32 pid;
 530         u32 swap_pid;
 531
 532         u32 ccr0;
 533         u32 ccr1;
 534         u32 dbsr;
 535
 536         u64 mmcr[5];
 537         u32 pmc[8];
 538         u32 spmc[2];
 539         u64 siar;
 540         u64 sdar;
 541         u64 sier;
 542 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 543         u64 tfhar;
 544         u64 texasr;
 545         u64 tfiar;
 546
 547         u32 cr_tm;
 548         u64 lr_tm;
 549         u64 ctr_tm;
 550         u64 amr_tm;
 551         u64 ppr_tm;
 552         u64 dscr_tm;
 553         u64 tar_tm;
 554
 555         ulong gpr_tm[32];
 556
 557         struct thread_fp_state fp_tm;
 558
 559         struct thread_vr_state vr_tm;
 560         u32 vrsave_tm; /* also USPRG0 */
 561
 562 #endif
 563
 564 #ifdef CONFIG_KVM_EXIT_TIMING
 565         struct mutex exit_timing_lock;
 566         struct kvmppc_exit_timing timing_exit;
 567         struct kvmppc_exit_timing timing_last_enter;
 568         u32 last_exit_type;
 569         u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
 570         u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 571         u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 572         u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 573         u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 574         u64 timing_last_exit;
 575         struct dentry *debugfs_exit_timing;
 576 #endif
 577
 578 #ifdef CONFIG_PPC_BOOK3S
 579         ulong fault_dar;
 580         u32 fault_dsisr;
 581         unsigned long intr_msr;
 582 #endif
 583
 584 #ifdef CONFIG_BOOKE
 585         ulong fault_dear;
 586         ulong fault_esr;
 587         ulong queued_dear;
 588         ulong queued_esr;
 589         spinlock_t wdt_lock;
 590         struct timer_list wdt_timer;
 591         u32 tlbcfg[4];
 592         u32 tlbps[4];
 593         u32 mmucfg;
 594         u32 eptcfg;
 595         u32 epr;
 596         u64 sprg9;
 597         u32 pwrmgtcr0;
 598         u32 crit_save;
 599         /* guest debug registers*/
 600         struct debug_reg dbg_reg;
 601 #endif
 602         gpa_t paddr_accessed;
 603         gva_t vaddr_accessed;
 604         pgd_t *pgdir;
 605
 606         u8 io_gpr; /* GPR used as IO source/target */
 607         u8 mmio_host_swabbed;
 608         u8 mmio_sign_extend;
 609         u8 osi_needed;
 610         u8 osi_enabled;
 611         u8 papr_enabled;
 612         u8 watchdog_enabled;
 613         u8 sane;
 614         u8 cpu_type;
 615         u8 hcall_needed;
 616         u8 epr_flags; /* KVMPPC_EPR_xxx */
 617         u8 epr_needed;
 618
 619         u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
 620
 621         struct hrtimer dec_timer;
 622         u64 dec_jiffies;
 623         u64 dec_expires;
 624         unsigned long pending_exceptions;
 625         u8 ceded;
 626         u8 prodded;
 627         u32 last_inst;
 628
 629         wait_queue_head_t *wqp;
 630         struct kvmppc_vcore *vcore;
 631         int ret;
 632         int trap;
 633         int state;
 634         int ptid;
 635         int thread_cpu;
 636         bool timer_running;
 637         wait_queue_head_t cpu_run;
 638
 639         struct kvm_vcpu_arch_shared *shared;
 640 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
 641         bool shared_big_endian;
 642 #endif
 643         unsigned long magic_page_pa; /* phys addr to map the magic page to */
 644         unsigned long magic_page_ea; /* effect. addr to map the magic page to */
 645         bool disable_kernel_nx;
 646
 647         int irq_type;           /* one of KVM_IRQ_* */
 648         int irq_cpu_id;
 649         struct openpic *mpic;   /* KVM_IRQ_MPIC */
 650 #ifdef CONFIG_KVM_XICS
 651         struct kvmppc_icp *icp; /* XICS presentation controller */
 652 #endif
 653
 654 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 655         struct kvm_vcpu_arch_shared shregs;
 656
 657         unsigned long pgfault_addr;
 658         long pgfault_index;
 659         unsigned long pgfault_hpte[2];
 660
 661         struct list_head run_list;
 662         struct task_struct *run_task;
 663         struct kvm_run *kvm_run;
 664
 665         spinlock_t vpa_update_lock;
 666         struct kvmppc_vpa vpa;
 667         struct kvmppc_vpa dtl;
 668         struct dtl_entry *dtl_ptr;
 669         unsigned long dtl_index;
 670         u64 stolen_logged;
 671         struct kvmppc_vpa slb_shadow;
 672
 673         spinlock_t tbacct_lock;
 674         u64 busy_stolen;
 675         u64 busy_preempt;
 676
 677         u32 emul_inst;
 678 #endif
 679
 680 #ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
 681         struct kvmhv_tb_accumulator *cur_activity;      /* What we're timing */
 682         u64     cur_tb_start;                   /* when it started */
 683         struct kvmhv_tb_accumulator rm_entry;   /* real-mode entry code */
 684         struct kvmhv_tb_accumulator rm_intr;    /* real-mode intr handling */
 685         struct kvmhv_tb_accumulator rm_exit;    /* real-mode exit code */
 686         struct kvmhv_tb_accumulator guest_time; /* guest execution */
 687         struct kvmhv_tb_accumulator cede_time;  /* time napping inside guest */
 688
 689         struct dentry *debugfs_dir;
 690         struct dentry *debugfs_timings;
 691 #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
 692 };
 693
 694 #define VCPU_FPR(vcpu, i)       (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
 695
 696 /* Values for vcpu->arch.state */
 697 #define KVMPPC_VCPU_NOTREADY            0
 698 #define KVMPPC_VCPU_RUNNABLE            1
 699 #define KVMPPC_VCPU_BUSY_IN_HOST        2
 700
 701 /* Values for vcpu->arch.io_gpr */
 702 #define KVM_MMIO_REG_MASK       0x001f
 703 #define KVM_MMIO_REG_EXT_MASK   0xffe0
 704 #define KVM_MMIO_REG_GPR        0x0000
 705 #define KVM_MMIO_REG_FPR        0x0020
 706 #define KVM_MMIO_REG_QPR        0x0040
 707 #define KVM_MMIO_REG_FQPR       0x0060
 708
 709 #define __KVM_HAVE_ARCH_WQP
 710 #define __KVM_HAVE_CREATE_DEVICE
 711
 712 static inline void kvm_arch_hardware_disable(void) {}
 713 static inline void kvm_arch_hardware_unsetup(void) {}
 714 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
 715 static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {}
 716 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
 717 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
 718 static inline void kvm_arch_exit(void) {}
 719
 720 #endif /* __POWERPC_KVM_HOST_H__ */