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 #include <asm/mce.h>
  39
  40 #define KVM_MAX_VCPUS           NR_CPUS
  41 #define KVM_MAX_VCORES          NR_CPUS
  42 #define KVM_USER_MEM_SLOTS      512
  43
  44 #include <asm/cputhreads.h>
  45 #define KVM_MAX_VCPU_ID                (threads_per_subcore * KVM_MAX_VCORES)
  46
  47 #define __KVM_HAVE_ARCH_INTC_INITIALIZED
  48
  49 #define KVM_HALT_POLL_NS_DEFAULT 10000  /* 10 us */
  50
  51 /* These values are internal and can be increased later */
  52 #define KVM_NR_IRQCHIPS          1
  53 #define KVM_IRQCHIP_NUM_PINS     256
  54
  55 /* PPC-specific vcpu->requests bit members */
  56 #define KVM_REQ_WATCHDOG        KVM_ARCH_REQ(0)
  57 #define KVM_REQ_EPR_EXIT        KVM_ARCH_REQ(1)
  58
  59 #include <linux/mmu_notifier.h>
  60
  61 #define KVM_ARCH_WANT_MMU_NOTIFIER
  62
  63 extern int kvm_unmap_hva_range(struct kvm *kvm,
  64                                unsigned long start, unsigned long end);
  65 extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
  66 extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
  67 extern void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
  68
  69 #define HPTEG_CACHE_NUM                 (1 << 15)
  70 #define HPTEG_HASH_BITS_PTE             13
  71 #define HPTEG_HASH_BITS_PTE_LONG        12
  72 #define HPTEG_HASH_BITS_VPTE            13
  73 #define HPTEG_HASH_BITS_VPTE_LONG       5
  74 #define HPTEG_HASH_BITS_VPTE_64K        11
  75 #define HPTEG_HASH_NUM_PTE              (1 << HPTEG_HASH_BITS_PTE)
  76 #define HPTEG_HASH_NUM_PTE_LONG         (1 << HPTEG_HASH_BITS_PTE_LONG)
  77 #define HPTEG_HASH_NUM_VPTE             (1 << HPTEG_HASH_BITS_VPTE)
  78 #define HPTEG_HASH_NUM_VPTE_LONG        (1 << HPTEG_HASH_BITS_VPTE_LONG)
  79 #define HPTEG_HASH_NUM_VPTE_64K         (1 << HPTEG_HASH_BITS_VPTE_64K)
  80
  81 /* Physical Address Mask - allowed range of real mode RAM access */
  82 #define KVM_PAM                 0x0fffffffffffffffULL
  83
  84 struct lppaca;
  85 struct slb_shadow;
  86 struct dtl_entry;
  87
  88 struct kvmppc_vcpu_book3s;
  89 struct kvmppc_book3s_shadow_vcpu;
  90
  91 struct kvm_vm_stat {
  92         ulong remote_tlb_flush;
  93 };
  94
  95 struct kvm_vcpu_stat {
  96         u64 sum_exits;
  97         u64 mmio_exits;
  98         u64 signal_exits;
  99         u64 light_exits;
 100         /* Account for special types of light exits: */
 101         u64 itlb_real_miss_exits;
 102         u64 itlb_virt_miss_exits;
 103         u64 dtlb_real_miss_exits;
 104         u64 dtlb_virt_miss_exits;
 105         u64 syscall_exits;
 106         u64 isi_exits;
 107         u64 dsi_exits;
 108         u64 emulated_inst_exits;
 109         u64 dec_exits;
 110         u64 ext_intr_exits;
 111         u64 halt_poll_success_ns;
 112         u64 halt_poll_fail_ns;
 113         u64 halt_wait_ns;
 114         u64 halt_successful_poll;
 115         u64 halt_attempted_poll;
 116         u64 halt_successful_wait;
 117         u64 halt_poll_invalid;
 118         u64 halt_wakeup;
 119         u64 dbell_exits;
 120         u64 gdbell_exits;
 121         u64 ld;
 122         u64 st;
 123 #ifdef CONFIG_PPC_BOOK3S
 124         u64 pf_storage;
 125         u64 pf_instruc;
 126         u64 sp_storage;
 127         u64 sp_instruc;
 128         u64 queue_intr;
 129         u64 ld_slow;
 130         u64 st_slow;
 131 #endif
 132         u64 pthru_all;
 133         u64 pthru_host;
 134         u64 pthru_bad_aff;
 135 };
 136
 137 enum kvm_exit_types {
 138         MMIO_EXITS,
 139         SIGNAL_EXITS,
 140         ITLB_REAL_MISS_EXITS,
 141         ITLB_VIRT_MISS_EXITS,
 142         DTLB_REAL_MISS_EXITS,
 143         DTLB_VIRT_MISS_EXITS,
 144         SYSCALL_EXITS,
 145         ISI_EXITS,
 146         DSI_EXITS,
 147         EMULATED_INST_EXITS,
 148         EMULATED_MTMSRWE_EXITS,
 149         EMULATED_WRTEE_EXITS,
 150         EMULATED_MTSPR_EXITS,
 151         EMULATED_MFSPR_EXITS,
 152         EMULATED_MTMSR_EXITS,
 153         EMULATED_MFMSR_EXITS,
 154         EMULATED_TLBSX_EXITS,
 155         EMULATED_TLBWE_EXITS,
 156         EMULATED_RFI_EXITS,
 157         EMULATED_RFCI_EXITS,
 158         EMULATED_RFDI_EXITS,
 159         DEC_EXITS,
 160         EXT_INTR_EXITS,
 161         HALT_WAKEUP,
 162         USR_PR_INST,
 163         FP_UNAVAIL,
 164         DEBUG_EXITS,
 165         TIMEINGUEST,
 166         DBELL_EXITS,
 167         GDBELL_EXITS,
 168         __NUMBER_OF_KVM_EXIT_TYPES
 169 };
 170
 171 /* allow access to big endian 32bit upper/lower parts and 64bit var */
 172 struct kvmppc_exit_timing {
 173         union {
 174                 u64 tv64;
 175                 struct {
 176                         u32 tbu, tbl;
 177                 } tv32;
 178         };
 179 };
 180
 181 struct kvmppc_pginfo {
 182         unsigned long pfn;
 183         atomic_t refcnt;
 184 };
 185
 186 struct kvmppc_spapr_tce_iommu_table {
 187         struct rcu_head rcu;
 188         struct list_head next;
 189         struct iommu_table *tbl;
 190         struct kref kref;
 191 };
 192
 193 struct kvmppc_spapr_tce_table {
 194         struct list_head list;
 195         struct kvm *kvm;
 196         u64 liobn;
 197         struct rcu_head rcu;
 198         u32 page_shift;
 199         u64 offset;             /* in pages */
 200         u64 size;               /* window size in pages */
 201         struct list_head iommu_tables;
 202         struct page *pages[0];
 203 };
 204
 205 /* XICS components, defined in book3s_xics.c */
 206 struct kvmppc_xics;
 207 struct kvmppc_icp;
 208 extern struct kvm_device_ops kvm_xics_ops;
 209
 210 /* XIVE components, defined in book3s_xive.c */
 211 struct kvmppc_xive;
 212 struct kvmppc_xive_vcpu;
 213 extern struct kvm_device_ops kvm_xive_ops;
 214
 215 struct kvmppc_passthru_irqmap;
 216
 217 /*
 218  * The reverse mapping array has one entry for each HPTE,
 219  * which stores the guest's view of the second word of the HPTE
 220  * (including the guest physical address of the mapping),
 221  * plus forward and backward pointers in a doubly-linked ring
 222  * of HPTEs that map the same host page.  The pointers in this
 223  * ring are 32-bit HPTE indexes, to save space.
 224  */
 225 struct revmap_entry {
 226         unsigned long guest_rpte;
 227         unsigned int forw, back;
 228 };
 229
 230 /*
 231  * We use the top bit of each memslot->arch.rmap entry as a lock bit,
 232  * and bit 32 as a present flag.  The bottom 32 bits are the
 233  * index in the guest HPT of a HPTE that points to the page.
 234  */
 235 #define KVMPPC_RMAP_LOCK_BIT    63
 236 #define KVMPPC_RMAP_RC_SHIFT    32
 237 #define KVMPPC_RMAP_REFERENCED  (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
 238 #define KVMPPC_RMAP_PRESENT     0x100000000ul
 239 #define KVMPPC_RMAP_INDEX       0xfffffffful
 240
 241 struct kvm_arch_memory_slot {
 242 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 243         unsigned long *rmap;
 244 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 245 };
 246
 247 struct kvm_hpt_info {
 248         /* Host virtual (linear mapping) address of guest HPT */
 249         unsigned long virt;
 250         /* Array of reverse mapping entries for each guest HPTE */
 251         struct revmap_entry *rev;
 252         /* Guest HPT size is 2**(order) bytes */
 253         u32 order;
 254         /* 1 if HPT allocated with CMA, 0 otherwise */
 255         int cma;
 256 };
 257
 258 struct kvm_resize_hpt;
 259
 260 struct kvm_arch {
 261         unsigned int lpid;
 262         unsigned int smt_mode;          /* # vcpus per virtual core */
 263         unsigned int emul_smt_mode;     /* emualted SMT mode, on P9 */
 264 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 265         unsigned int tlb_sets;
 266         struct kvm_hpt_info hpt;
 267         atomic64_t mmio_update;
 268         unsigned int host_lpid;
 269         unsigned long host_lpcr;
 270         unsigned long sdr1;
 271         unsigned long host_sdr1;
 272         int tlbie_lock;
 273         unsigned long lpcr;
 274         unsigned long vrma_slb_v;
 275         int mmu_ready;
 276         atomic_t vcpus_running;
 277         u32 online_vcores;
 278         atomic_t hpte_mod_interest;
 279         cpumask_t need_tlb_flush;
 280         cpumask_t cpu_in_guest;
 281         u8 radix;
 282         u8 fwnmi_enabled;
 283         bool threads_indep;
 284         pgd_t *pgtable;
 285         u64 process_table;
 286         struct dentry *debugfs_dir;
 287         struct dentry *htab_dentry;
 288         struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */
 289 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 290 #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 291         struct mutex hpt_mutex;
 292 #endif
 293 #ifdef CONFIG_PPC_BOOK3S_64
 294         struct list_head spapr_tce_tables;
 295         struct list_head rtas_tokens;
 296         DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
 297 #endif
 298 #ifdef CONFIG_KVM_MPIC
 299         struct openpic *mpic;
 300 #endif
 301 #ifdef CONFIG_KVM_XICS
 302         struct kvmppc_xics *xics;
 303         struct kvmppc_xive *xive;
 304         struct kvmppc_passthru_irqmap *pimap;
 305 #endif
 306         struct kvmppc_ops *kvm_ops;
 307 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 308         /* This array can grow quite large, keep it at the end */
 309         struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
 310 #endif
 311 };
 312
 313 #define VCORE_ENTRY_MAP(vc)     ((vc)->entry_exit_map & 0xff)
 314 #define VCORE_EXIT_MAP(vc)      ((vc)->entry_exit_map >> 8)
 315 #define VCORE_IS_EXITING(vc)    (VCORE_EXIT_MAP(vc) != 0)
 316
 317 /* This bit is used when a vcore exit is triggered from outside the vcore */
 318 #define VCORE_EXIT_REQ          0x10000
 319
 320 /*
 321  * Values for vcore_state.
 322  * Note that these are arranged such that lower values
 323  * (< VCORE_SLEEPING) don't require stolen time accounting
 324  * on load/unload, and higher values do.
 325  */
 326 #define VCORE_INACTIVE  0
 327 #define VCORE_PREEMPT   1
 328 #define VCORE_PIGGYBACK 2
 329 #define VCORE_SLEEPING  3
 330 #define VCORE_RUNNING   4
 331 #define VCORE_EXITING   5
 332 #define VCORE_POLLING   6
 333
 334 /*
 335  * Struct used to manage memory for a virtual processor area
 336  * registered by a PAPR guest.  There are three types of area
 337  * that a guest can register.
 338  */
 339 struct kvmppc_vpa {
 340         unsigned long gpa;      /* Current guest phys addr */
 341         void *pinned_addr;      /* Address in kernel linear mapping */
 342         void *pinned_end;       /* End of region */
 343         unsigned long next_gpa; /* Guest phys addr for update */
 344         unsigned long len;      /* Number of bytes required */
 345         u8 update_pending;      /* 1 => update pinned_addr from next_gpa */
 346         bool dirty;             /* true => area has been modified by kernel */
 347 };
 348
 349 struct kvmppc_pte {
 350         ulong eaddr;
 351         u64 vpage;
 352         ulong raddr;
 353         bool may_read           : 1;
 354         bool may_write          : 1;
 355         bool may_execute        : 1;
 356         unsigned long wimg;
 357         u8 page_size;           /* MMU_PAGE_xxx */
 358 };
 359
 360 struct kvmppc_mmu {
 361         /* book3s_64 only */
 362         void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
 363         u64  (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
 364         u64  (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
 365         void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
 366         void (*slbia)(struct kvm_vcpu *vcpu);
 367         /* book3s */
 368         void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
 369         u32  (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
 370         int  (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
 371                       struct kvmppc_pte *pte, bool data, bool iswrite);
 372         void (*reset_msr)(struct kvm_vcpu *vcpu);
 373         void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
 374         int  (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
 375         u64  (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
 376         bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
 377 };
 378
 379 struct kvmppc_slb {
 380         u64 esid;
 381         u64 vsid;
 382         u64 orige;
 383         u64 origv;
 384         bool valid      : 1;
 385         bool Ks         : 1;
 386         bool Kp         : 1;
 387         bool nx         : 1;
 388         bool large      : 1;    /* PTEs are 16MB */
 389         bool tb         : 1;    /* 1TB segment */
 390         bool class      : 1;
 391         u8 base_page_size;      /* MMU_PAGE_xxx */
 392 };
 393
 394 /* Struct used to accumulate timing information in HV real mode code */
 395 struct kvmhv_tb_accumulator {
 396         u64     seqcount;       /* used to synchronize access, also count * 2 */
 397         u64     tb_total;       /* total time in timebase ticks */
 398         u64     tb_min;         /* min time */
 399         u64     tb_max;         /* max time */
 400 };
 401
 402 #ifdef CONFIG_PPC_BOOK3S_64
 403 struct kvmppc_irq_map {
 404         u32     r_hwirq;
 405         u32     v_hwirq;
 406         struct irq_desc *desc;
 407 };
 408
 409 #define KVMPPC_PIRQ_MAPPED      1024
 410 struct kvmppc_passthru_irqmap {
 411         int n_mapped;
 412         struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED];
 413 };
 414 #endif
 415
 416 # ifdef CONFIG_PPC_FSL_BOOK3E
 417 #define KVMPPC_BOOKE_IAC_NUM    2
 418 #define KVMPPC_BOOKE_DAC_NUM    2
 419 # else
 420 #define KVMPPC_BOOKE_IAC_NUM    4
 421 #define KVMPPC_BOOKE_DAC_NUM    2
 422 # endif
 423 #define KVMPPC_BOOKE_MAX_IAC    4
 424 #define KVMPPC_BOOKE_MAX_DAC    2
 425
 426 /* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
 427 #define KVMPPC_EPR_NONE         0 /* EPR not supported */
 428 #define KVMPPC_EPR_USER         1 /* exit to userspace to fill EPR */
 429 #define KVMPPC_EPR_KERNEL       2 /* in-kernel irqchip */
 430
 431 #define KVMPPC_IRQ_DEFAULT      0
 432 #define KVMPPC_IRQ_MPIC         1
 433 #define KVMPPC_IRQ_XICS         2 /* Includes a XIVE option */
 434
 435 #define MMIO_HPTE_CACHE_SIZE    4
 436
 437 struct mmio_hpte_cache_entry {
 438         unsigned long hpte_v;
 439         unsigned long hpte_r;
 440         unsigned long rpte;
 441         unsigned long pte_index;
 442         unsigned long eaddr;
 443         unsigned long slb_v;
 444         long mmio_update;
 445         unsigned int slb_base_pshift;
 446 };
 447
 448 struct mmio_hpte_cache {
 449         struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE];
 450         unsigned int index;
 451 };
 452
 453 #define KVMPPC_VSX_COPY_NONE            0
 454 #define KVMPPC_VSX_COPY_WORD            1
 455 #define KVMPPC_VSX_COPY_DWORD           2
 456 #define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP 3
 457
 458 struct openpic;
 459
 460 /* W0 and W1 of a XIVE thread management context */
 461 union xive_tma_w01 {
 462         struct {
 463                 u8      nsr;
 464                 u8      cppr;
 465                 u8      ipb;
 466                 u8      lsmfb;
 467                 u8      ack;
 468                 u8      inc;
 469                 u8      age;
 470                 u8      pipr;
 471         };
 472         __be64 w01;
 473 };
 474
 475 struct kvm_vcpu_arch {
 476         ulong host_stack;
 477         u32 host_pid;
 478 #ifdef CONFIG_PPC_BOOK3S
 479         struct kvmppc_slb slb[64];
 480         int slb_max;            /* 1 + index of last valid entry in slb[] */
 481         int slb_nr;             /* total number of entries in SLB */
 482         struct kvmppc_mmu mmu;
 483         struct kvmppc_vcpu_book3s *book3s;
 484 #endif
 485 #ifdef CONFIG_PPC_BOOK3S_32
 486         struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
 487 #endif
 488
 489         ulong gpr[32];
 490
 491         struct thread_fp_state fp;
 492
 493 #ifdef CONFIG_SPE
 494         ulong evr[32];
 495         ulong spefscr;
 496         ulong host_spefscr;
 497         u64 acc;
 498 #endif
 499 #ifdef CONFIG_ALTIVEC
 500         struct thread_vr_state vr;
 501 #endif
 502
 503 #ifdef CONFIG_KVM_BOOKE_HV
 504         u32 host_mas4;
 505         u32 host_mas6;
 506         u32 shadow_epcr;
 507         u32 shadow_msrp;
 508         u32 eplc;
 509         u32 epsc;
 510         u32 oldpir;
 511 #endif
 512
 513 #if defined(CONFIG_BOOKE)
 514 #if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
 515         u32 epcr;
 516 #endif
 517 #endif
 518
 519 #ifdef CONFIG_PPC_BOOK3S
 520         /* For Gekko paired singles */
 521         u32 qpr[32];
 522 #endif
 523
 524         ulong pc;
 525         ulong ctr;
 526         ulong lr;
 527 #ifdef CONFIG_PPC_BOOK3S
 528         ulong tar;
 529 #endif
 530
 531         ulong xer;
 532         u32 cr;
 533
 534 #ifdef CONFIG_PPC_BOOK3S
 535         ulong hflags;
 536         ulong guest_owned_ext;
 537         ulong purr;
 538         ulong spurr;
 539         ulong ic;
 540         ulong dscr;
 541         ulong amr;
 542         ulong uamor;
 543         ulong iamr;
 544         u32 ctrl;
 545         u32 dabrx;
 546         ulong dabr;
 547         ulong dawr;
 548         ulong dawrx;
 549         ulong ciabr;
 550         ulong cfar;
 551         ulong ppr;
 552         u32 pspb;
 553         ulong fscr;
 554         ulong shadow_fscr;
 555         ulong ebbhr;
 556         ulong ebbrr;
 557         ulong bescr;
 558         ulong csigr;
 559         ulong tacr;
 560         ulong tcscr;
 561         ulong acop;
 562         ulong wort;
 563         ulong tid;
 564         ulong psscr;
 565         ulong hfscr;
 566         ulong shadow_srr1;
 567 #endif
 568         u32 vrsave; /* also USPRG0 */
 569         u32 mmucr;
 570         /* shadow_msr is unused for BookE HV */
 571         ulong shadow_msr;
 572         ulong csrr0;
 573         ulong csrr1;
 574         ulong dsrr0;
 575         ulong dsrr1;
 576         ulong mcsrr0;
 577         ulong mcsrr1;
 578         ulong mcsr;
 579         ulong dec;
 580 #ifdef CONFIG_BOOKE
 581         u32 decar;
 582 #endif
 583         /* Time base value when we entered the guest */
 584         u64 entry_tb;
 585         u64 entry_vtb;
 586         u64 entry_ic;
 587         u32 tcr;
 588         ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
 589         u32 ivor[64];
 590         ulong ivpr;
 591         u32 pvr;
 592
 593         u32 shadow_pid;
 594         u32 shadow_pid1;
 595         u32 pid;
 596         u32 swap_pid;
 597
 598         u32 ccr0;
 599         u32 ccr1;
 600         u32 dbsr;
 601
 602         u64 mmcr[5];
 603         u32 pmc[8];
 604         u32 spmc[2];
 605         u64 siar;
 606         u64 sdar;
 607         u64 sier;
 608 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 609         u64 tfhar;
 610         u64 texasr;
 611         u64 tfiar;
 612         u64 orig_texasr;
 613
 614         u32 cr_tm;
 615         u64 xer_tm;
 616         u64 lr_tm;
 617         u64 ctr_tm;
 618         u64 amr_tm;
 619         u64 ppr_tm;
 620         u64 dscr_tm;
 621         u64 tar_tm;
 622
 623         ulong gpr_tm[32];
 624
 625         struct thread_fp_state fp_tm;
 626
 627         struct thread_vr_state vr_tm;
 628         u32 vrsave_tm; /* also USPRG0 */
 629
 630 #endif
 631
 632 #ifdef CONFIG_KVM_EXIT_TIMING
 633         struct mutex exit_timing_lock;
 634         struct kvmppc_exit_timing timing_exit;
 635         struct kvmppc_exit_timing timing_last_enter;
 636         u32 last_exit_type;
 637         u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
 638         u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 639         u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 640         u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 641         u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 642         u64 timing_last_exit;
 643         struct dentry *debugfs_exit_timing;
 644 #endif
 645
 646 #ifdef CONFIG_PPC_BOOK3S
 647         ulong fault_dar;
 648         u32 fault_dsisr;
 649         unsigned long intr_msr;
 650         ulong fault_gpa;        /* guest real address of page fault (POWER9) */
 651 #endif
 652
 653 #ifdef CONFIG_BOOKE
 654         ulong fault_dear;
 655         ulong fault_esr;
 656         ulong queued_dear;
 657         ulong queued_esr;
 658         spinlock_t wdt_lock;
 659         struct timer_list wdt_timer;
 660         u32 tlbcfg[4];
 661         u32 tlbps[4];
 662         u32 mmucfg;
 663         u32 eptcfg;
 664         u32 epr;
 665         u64 sprg9;
 666         u32 pwrmgtcr0;
 667         u32 crit_save;
 668         /* guest debug registers*/
 669         struct debug_reg dbg_reg;
 670 #endif
 671         gpa_t paddr_accessed;
 672         gva_t vaddr_accessed;
 673         pgd_t *pgdir;
 674
 675         u8 io_gpr; /* GPR used as IO source/target */
 676         u8 mmio_host_swabbed;
 677         u8 mmio_sign_extend;
 678         /* conversion between single and double precision */
 679         u8 mmio_sp64_extend;
 680         /*
 681          * Number of simulations for vsx.
 682          * If we use 2*8bytes to simulate 1*16bytes,
 683          * then the number should be 2 and
 684          * mmio_vsx_copy_type=KVMPPC_VSX_COPY_DWORD.
 685          * If we use 4*4bytes to simulate 1*16bytes,
 686          * the number should be 4 and
 687          * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD.
 688          */
 689         u8 mmio_vsx_copy_nums;
 690         u8 mmio_vsx_offset;
 691         u8 mmio_vsx_copy_type;
 692         u8 mmio_vsx_tx_sx_enabled;
 693         u8 mmio_vmx_copy_nums;
 694         u8 osi_needed;
 695         u8 osi_enabled;
 696         u8 papr_enabled;
 697         u8 watchdog_enabled;
 698         u8 sane;
 699         u8 cpu_type;
 700         u8 hcall_needed;
 701         u8 epr_flags; /* KVMPPC_EPR_xxx */
 702         u8 epr_needed;
 703
 704         u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
 705
 706         struct hrtimer dec_timer;
 707         u64 dec_jiffies;
 708         u64 dec_expires;
 709         unsigned long pending_exceptions;
 710         u8 ceded;
 711         u8 prodded;
 712         u8 doorbell_request;
 713         u8 irq_pending; /* Used by XIVE to signal pending guest irqs */
 714         u32 last_inst;
 715
 716         struct swait_queue_head *wqp;
 717         struct kvmppc_vcore *vcore;
 718         int ret;
 719         int trap;
 720         int state;
 721         int ptid;
 722         int thread_cpu;
 723         int prev_cpu;
 724         bool timer_running;
 725         wait_queue_head_t cpu_run;
 726         struct machine_check_event mce_evt; /* Valid if trap == 0x200 */
 727
 728         struct kvm_vcpu_arch_shared *shared;
 729 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
 730         bool shared_big_endian;
 731 #endif
 732         unsigned long magic_page_pa; /* phys addr to map the magic page to */
 733         unsigned long magic_page_ea; /* effect. addr to map the magic page to */
 734         bool disable_kernel_nx;
 735
 736         int irq_type;           /* one of KVM_IRQ_* */
 737         int irq_cpu_id;
 738         struct openpic *mpic;   /* KVM_IRQ_MPIC */
 739 #ifdef CONFIG_KVM_XICS
 740         struct kvmppc_icp *icp; /* XICS presentation controller */
 741         struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */
 742         __be32 xive_cam_word;    /* Cooked W2 in proper endian with valid bit */
 743         u8 xive_pushed;          /* Is the VP pushed on the physical CPU ? */
 744         u8 xive_esc_on;          /* Is the escalation irq enabled ? */
 745         union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */
 746         u64 xive_esc_raddr;      /* Escalation interrupt ESB real addr */
 747         u64 xive_esc_vaddr;      /* Escalation interrupt ESB virt addr */
 748 #endif
 749
 750 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 751         struct kvm_vcpu_arch_shared shregs;
 752
 753         struct mmio_hpte_cache mmio_cache;
 754         unsigned long pgfault_addr;
 755         long pgfault_index;
 756         unsigned long pgfault_hpte[2];
 757         struct mmio_hpte_cache_entry *pgfault_cache;
 758
 759         struct task_struct *run_task;
 760         struct kvm_run *kvm_run;
 761
 762         spinlock_t vpa_update_lock;
 763         struct kvmppc_vpa vpa;
 764         struct kvmppc_vpa dtl;
 765         struct dtl_entry *dtl_ptr;
 766         unsigned long dtl_index;
 767         u64 stolen_logged;
 768         struct kvmppc_vpa slb_shadow;
 769
 770         spinlock_t tbacct_lock;
 771         u64 busy_stolen;
 772         u64 busy_preempt;
 773
 774         u32 emul_inst;
 775 #endif
 776
 777 #ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
 778         struct kvmhv_tb_accumulator *cur_activity;      /* What we're timing */
 779         u64     cur_tb_start;                   /* when it started */
 780         struct kvmhv_tb_accumulator rm_entry;   /* real-mode entry code */
 781         struct kvmhv_tb_accumulator rm_intr;    /* real-mode intr handling */
 782         struct kvmhv_tb_accumulator rm_exit;    /* real-mode exit code */
 783         struct kvmhv_tb_accumulator guest_time; /* guest execution */
 784         struct kvmhv_tb_accumulator cede_time;  /* time napping inside guest */
 785
 786         struct dentry *debugfs_dir;
 787         struct dentry *debugfs_timings;
 788 #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
 789 };
 790
 791 #define VCPU_FPR(vcpu, i)       (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
 792 #define VCPU_VSX_FPR(vcpu, i, j)        ((vcpu)->arch.fp.fpr[i][j])
 793 #define VCPU_VSX_VR(vcpu, i)            ((vcpu)->arch.vr.vr[i])
 794
 795 /* Values for vcpu->arch.state */
 796 #define KVMPPC_VCPU_NOTREADY            0
 797 #define KVMPPC_VCPU_RUNNABLE            1
 798 #define KVMPPC_VCPU_BUSY_IN_HOST        2
 799
 800 /* Values for vcpu->arch.io_gpr */
 801 #define KVM_MMIO_REG_MASK       0x001f
 802 #define KVM_MMIO_REG_EXT_MASK   0xffe0
 803 #define KVM_MMIO_REG_GPR        0x0000
 804 #define KVM_MMIO_REG_FPR        0x0020
 805 #define KVM_MMIO_REG_QPR        0x0040
 806 #define KVM_MMIO_REG_FQPR       0x0060
 807 #define KVM_MMIO_REG_VSX        0x0080
 808 #define KVM_MMIO_REG_VMX        0x00c0
 809
 810 #define __KVM_HAVE_ARCH_WQP
 811 #define __KVM_HAVE_CREATE_DEVICE
 812
 813 static inline void kvm_arch_hardware_disable(void) {}
 814 static inline void kvm_arch_hardware_unsetup(void) {}
 815 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
 816 static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {}
 817 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
 818 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
 819 static inline void kvm_arch_exit(void) {}
 820 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
 821 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
 822 static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
 823
 824 #endif /* __POWERPC_KVM_HOST_H__ */