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(struct kvm *kvm, unsigned long hva);
  64 extern int kvm_unmap_hva_range(struct kvm *kvm,
  65                                unsigned long start, unsigned long end);
  66 extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
  67 extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
  68 extern void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
  69
  70 #define HPTEG_CACHE_NUM                 (1 << 15)
  71 #define HPTEG_HASH_BITS_PTE             13
  72 #define HPTEG_HASH_BITS_PTE_LONG        12
  73 #define HPTEG_HASH_BITS_VPTE            13
  74 #define HPTEG_HASH_BITS_VPTE_LONG       5
  75 #define HPTEG_HASH_BITS_VPTE_64K        11
  76 #define HPTEG_HASH_NUM_PTE              (1 << HPTEG_HASH_BITS_PTE)
  77 #define HPTEG_HASH_NUM_PTE_LONG         (1 << HPTEG_HASH_BITS_PTE_LONG)
  78 #define HPTEG_HASH_NUM_VPTE             (1 << HPTEG_HASH_BITS_VPTE)
  79 #define HPTEG_HASH_NUM_VPTE_LONG        (1 << HPTEG_HASH_BITS_VPTE_LONG)
  80 #define HPTEG_HASH_NUM_VPTE_64K         (1 << HPTEG_HASH_BITS_VPTE_64K)
  81
  82 /* Physical Address Mask - allowed range of real mode RAM access */
  83 #define KVM_PAM                 0x0fffffffffffffffULL
  84
  85 struct lppaca;
  86 struct slb_shadow;
  87 struct dtl_entry;
  88
  89 struct kvmppc_vcpu_book3s;
  90 struct kvmppc_book3s_shadow_vcpu;
  91
  92 struct kvm_vm_stat {
  93         ulong remote_tlb_flush;
  94 };
  95
  96 struct kvm_vcpu_stat {
  97         u64 sum_exits;
  98         u64 mmio_exits;
  99         u64 signal_exits;
 100         u64 light_exits;
 101         /* Account for special types of light exits: */
 102         u64 itlb_real_miss_exits;
 103         u64 itlb_virt_miss_exits;
 104         u64 dtlb_real_miss_exits;
 105         u64 dtlb_virt_miss_exits;
 106         u64 syscall_exits;
 107         u64 isi_exits;
 108         u64 dsi_exits;
 109         u64 emulated_inst_exits;
 110         u64 dec_exits;
 111         u64 ext_intr_exits;
 112         u64 halt_poll_success_ns;
 113         u64 halt_poll_fail_ns;
 114         u64 halt_wait_ns;
 115         u64 halt_successful_poll;
 116         u64 halt_attempted_poll;
 117         u64 halt_successful_wait;
 118         u64 halt_poll_invalid;
 119         u64 halt_wakeup;
 120         u64 dbell_exits;
 121         u64 gdbell_exits;
 122         u64 ld;
 123         u64 st;
 124 #ifdef CONFIG_PPC_BOOK3S
 125         u64 pf_storage;
 126         u64 pf_instruc;
 127         u64 sp_storage;
 128         u64 sp_instruc;
 129         u64 queue_intr;
 130         u64 ld_slow;
 131         u64 st_slow;
 132 #endif
 133         u64 pthru_all;
 134         u64 pthru_host;
 135         u64 pthru_bad_aff;
 136 };
 137
 138 enum kvm_exit_types {
 139         MMIO_EXITS,
 140         SIGNAL_EXITS,
 141         ITLB_REAL_MISS_EXITS,
 142         ITLB_VIRT_MISS_EXITS,
 143         DTLB_REAL_MISS_EXITS,
 144         DTLB_VIRT_MISS_EXITS,
 145         SYSCALL_EXITS,
 146         ISI_EXITS,
 147         DSI_EXITS,
 148         EMULATED_INST_EXITS,
 149         EMULATED_MTMSRWE_EXITS,
 150         EMULATED_WRTEE_EXITS,
 151         EMULATED_MTSPR_EXITS,
 152         EMULATED_MFSPR_EXITS,
 153         EMULATED_MTMSR_EXITS,
 154         EMULATED_MFMSR_EXITS,
 155         EMULATED_TLBSX_EXITS,
 156         EMULATED_TLBWE_EXITS,
 157         EMULATED_RFI_EXITS,
 158         EMULATED_RFCI_EXITS,
 159         EMULATED_RFDI_EXITS,
 160         DEC_EXITS,
 161         EXT_INTR_EXITS,
 162         HALT_WAKEUP,
 163         USR_PR_INST,
 164         FP_UNAVAIL,
 165         DEBUG_EXITS,
 166         TIMEINGUEST,
 167         DBELL_EXITS,
 168         GDBELL_EXITS,
 169         __NUMBER_OF_KVM_EXIT_TYPES
 170 };
 171
 172 /* allow access to big endian 32bit upper/lower parts and 64bit var */
 173 struct kvmppc_exit_timing {
 174         union {
 175                 u64 tv64;
 176                 struct {
 177                         u32 tbu, tbl;
 178                 } tv32;
 179         };
 180 };
 181
 182 struct kvmppc_pginfo {
 183         unsigned long pfn;
 184         atomic_t refcnt;
 185 };
 186
 187 struct kvmppc_spapr_tce_iommu_table {
 188         struct rcu_head rcu;
 189         struct list_head next;
 190         struct iommu_table *tbl;
 191         struct kref kref;
 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 list_head iommu_tables;
 203         struct page *pages[0];
 204 };
 205
 206 /* XICS components, defined in book3s_xics.c */
 207 struct kvmppc_xics;
 208 struct kvmppc_icp;
 209 extern struct kvm_device_ops kvm_xics_ops;
 210
 211 /* XIVE components, defined in book3s_xive.c */
 212 struct kvmppc_xive;
 213 struct kvmppc_xive_vcpu;
 214 extern struct kvm_device_ops kvm_xive_ops;
 215
 216 struct kvmppc_passthru_irqmap;
 217
 218 /*
 219  * The reverse mapping array has one entry for each HPTE,
 220  * which stores the guest's view of the second word of the HPTE
 221  * (including the guest physical address of the mapping),
 222  * plus forward and backward pointers in a doubly-linked ring
 223  * of HPTEs that map the same host page.  The pointers in this
 224  * ring are 32-bit HPTE indexes, to save space.
 225  */
 226 struct revmap_entry {
 227         unsigned long guest_rpte;
 228         unsigned int forw, back;
 229 };
 230
 231 /*
 232  * We use the top bit of each memslot->arch.rmap entry as a lock bit,
 233  * and bit 32 as a present flag.  The bottom 32 bits are the
 234  * index in the guest HPT of a HPTE that points to the page.
 235  */
 236 #define KVMPPC_RMAP_LOCK_BIT    63
 237 #define KVMPPC_RMAP_RC_SHIFT    32
 238 #define KVMPPC_RMAP_CHG_SHIFT   48
 239 #define KVMPPC_RMAP_REFERENCED  (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
 240 #define KVMPPC_RMAP_CHANGED     (HPTE_R_C << KVMPPC_RMAP_RC_SHIFT)
 241 #define KVMPPC_RMAP_CHG_ORDER   (0x3ful << KVMPPC_RMAP_CHG_SHIFT)
 242 #define KVMPPC_RMAP_PRESENT     0x100000000ul
 243 #define KVMPPC_RMAP_INDEX       0xfffffffful
 244
 245 struct kvm_arch_memory_slot {
 246 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 247         unsigned long *rmap;
 248 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 249 };
 250
 251 struct kvm_hpt_info {
 252         /* Host virtual (linear mapping) address of guest HPT */
 253         unsigned long virt;
 254         /* Array of reverse mapping entries for each guest HPTE */
 255         struct revmap_entry *rev;
 256         /* Guest HPT size is 2**(order) bytes */
 257         u32 order;
 258         /* 1 if HPT allocated with CMA, 0 otherwise */
 259         int cma;
 260 };
 261
 262 struct kvm_resize_hpt;
 263
 264 struct kvm_arch {
 265         unsigned int lpid;
 266         unsigned int smt_mode;          /* # vcpus per virtual core */
 267         unsigned int emul_smt_mode;     /* emualted SMT mode, on P9 */
 268 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 269         unsigned int tlb_sets;
 270         struct kvm_hpt_info hpt;
 271         atomic64_t mmio_update;
 272         unsigned int host_lpid;
 273         unsigned long host_lpcr;
 274         unsigned long sdr1;
 275         unsigned long host_sdr1;
 276         int tlbie_lock;
 277         unsigned long lpcr;
 278         unsigned long vrma_slb_v;
 279         int hpte_setup_done;
 280         atomic_t vcpus_running;
 281         u32 online_vcores;
 282         atomic_t hpte_mod_interest;
 283         cpumask_t need_tlb_flush;
 284         cpumask_t cpu_in_guest;
 285         u8 radix;
 286         u8 fwnmi_enabled;
 287         pgd_t *pgtable;
 288         u64 process_table;
 289         struct dentry *debugfs_dir;
 290         struct dentry *htab_dentry;
 291         struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */
 292 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 293 #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 294         struct mutex hpt_mutex;
 295 #endif
 296 #ifdef CONFIG_PPC_BOOK3S_64
 297         struct list_head spapr_tce_tables;
 298         struct list_head rtas_tokens;
 299         DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
 300 #endif
 301 #ifdef CONFIG_KVM_MPIC
 302         struct openpic *mpic;
 303 #endif
 304 #ifdef CONFIG_KVM_XICS
 305         struct kvmppc_xics *xics;
 306         struct kvmppc_xive *xive;
 307         struct kvmppc_passthru_irqmap *pimap;
 308 #endif
 309         struct kvmppc_ops *kvm_ops;
 310 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 311         /* This array can grow quite large, keep it at the end */
 312         struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
 313 #endif
 314 };
 315
 316 #define VCORE_ENTRY_MAP(vc)     ((vc)->entry_exit_map & 0xff)
 317 #define VCORE_EXIT_MAP(vc)      ((vc)->entry_exit_map >> 8)
 318 #define VCORE_IS_EXITING(vc)    (VCORE_EXIT_MAP(vc) != 0)
 319
 320 /* This bit is used when a vcore exit is triggered from outside the vcore */
 321 #define VCORE_EXIT_REQ          0x10000
 322
 323 /*
 324  * Values for vcore_state.
 325  * Note that these are arranged such that lower values
 326  * (< VCORE_SLEEPING) don't require stolen time accounting
 327  * on load/unload, and higher values do.
 328  */
 329 #define VCORE_INACTIVE  0
 330 #define VCORE_PREEMPT   1
 331 #define VCORE_PIGGYBACK 2
 332 #define VCORE_SLEEPING  3
 333 #define VCORE_RUNNING   4
 334 #define VCORE_EXITING   5
 335 #define VCORE_POLLING   6
 336
 337 /*
 338  * Struct used to manage memory for a virtual processor area
 339  * registered by a PAPR guest.  There are three types of area
 340  * that a guest can register.
 341  */
 342 struct kvmppc_vpa {
 343         unsigned long gpa;      /* Current guest phys addr */
 344         void *pinned_addr;      /* Address in kernel linear mapping */
 345         void *pinned_end;       /* End of region */
 346         unsigned long next_gpa; /* Guest phys addr for update */
 347         unsigned long len;      /* Number of bytes required */
 348         u8 update_pending;      /* 1 => update pinned_addr from next_gpa */
 349         bool dirty;             /* true => area has been modified by kernel */
 350 };
 351
 352 struct kvmppc_pte {
 353         ulong eaddr;
 354         u64 vpage;
 355         ulong raddr;
 356         bool may_read           : 1;
 357         bool may_write          : 1;
 358         bool may_execute        : 1;
 359         unsigned long wimg;
 360         u8 page_size;           /* MMU_PAGE_xxx */
 361 };
 362
 363 struct kvmppc_mmu {
 364         /* book3s_64 only */
 365         void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
 366         u64  (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
 367         u64  (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
 368         void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
 369         void (*slbia)(struct kvm_vcpu *vcpu);
 370         /* book3s */
 371         void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
 372         u32  (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
 373         int  (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
 374                       struct kvmppc_pte *pte, bool data, bool iswrite);
 375         void (*reset_msr)(struct kvm_vcpu *vcpu);
 376         void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
 377         int  (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
 378         u64  (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
 379         bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
 380 };
 381
 382 struct kvmppc_slb {
 383         u64 esid;
 384         u64 vsid;
 385         u64 orige;
 386         u64 origv;
 387         bool valid      : 1;
 388         bool Ks         : 1;
 389         bool Kp         : 1;
 390         bool nx         : 1;
 391         bool large      : 1;    /* PTEs are 16MB */
 392         bool tb         : 1;    /* 1TB segment */
 393         bool class      : 1;
 394         u8 base_page_size;      /* MMU_PAGE_xxx */
 395 };
 396
 397 /* Struct used to accumulate timing information in HV real mode code */
 398 struct kvmhv_tb_accumulator {
 399         u64     seqcount;       /* used to synchronize access, also count * 2 */
 400         u64     tb_total;       /* total time in timebase ticks */
 401         u64     tb_min;         /* min time */
 402         u64     tb_max;         /* max time */
 403 };
 404
 405 #ifdef CONFIG_PPC_BOOK3S_64
 406 struct kvmppc_irq_map {
 407         u32     r_hwirq;
 408         u32     v_hwirq;
 409         struct irq_desc *desc;
 410 };
 411
 412 #define KVMPPC_PIRQ_MAPPED      1024
 413 struct kvmppc_passthru_irqmap {
 414         int n_mapped;
 415         struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED];
 416 };
 417 #endif
 418
 419 # ifdef CONFIG_PPC_FSL_BOOK3E
 420 #define KVMPPC_BOOKE_IAC_NUM    2
 421 #define KVMPPC_BOOKE_DAC_NUM    2
 422 # else
 423 #define KVMPPC_BOOKE_IAC_NUM    4
 424 #define KVMPPC_BOOKE_DAC_NUM    2
 425 # endif
 426 #define KVMPPC_BOOKE_MAX_IAC    4
 427 #define KVMPPC_BOOKE_MAX_DAC    2
 428
 429 /* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
 430 #define KVMPPC_EPR_NONE         0 /* EPR not supported */
 431 #define KVMPPC_EPR_USER         1 /* exit to userspace to fill EPR */
 432 #define KVMPPC_EPR_KERNEL       2 /* in-kernel irqchip */
 433
 434 #define KVMPPC_IRQ_DEFAULT      0
 435 #define KVMPPC_IRQ_MPIC         1
 436 #define KVMPPC_IRQ_XICS         2 /* Includes a XIVE option */
 437
 438 #define MMIO_HPTE_CACHE_SIZE    4
 439
 440 struct mmio_hpte_cache_entry {
 441         unsigned long hpte_v;
 442         unsigned long hpte_r;
 443         unsigned long rpte;
 444         unsigned long pte_index;
 445         unsigned long eaddr;
 446         unsigned long slb_v;
 447         long mmio_update;
 448         unsigned int slb_base_pshift;
 449 };
 450
 451 struct mmio_hpte_cache {
 452         struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE];
 453         unsigned int index;
 454 };
 455
 456 #define KVMPPC_VSX_COPY_NONE            0
 457 #define KVMPPC_VSX_COPY_WORD            1
 458 #define KVMPPC_VSX_COPY_DWORD           2
 459 #define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP 3
 460
 461 struct openpic;
 462
 463 /* W0 and W1 of a XIVE thread management context */
 464 union xive_tma_w01 {
 465         struct {
 466                 u8      nsr;
 467                 u8      cppr;
 468                 u8      ipb;
 469                 u8      lsmfb;
 470                 u8      ack;
 471                 u8      inc;
 472                 u8      age;
 473                 u8      pipr;
 474         };
 475         __be64 w01;
 476 };
 477
 478 struct kvm_vcpu_arch {
 479         ulong host_stack;
 480         u32 host_pid;
 481 #ifdef CONFIG_PPC_BOOK3S
 482         struct kvmppc_slb slb[64];
 483         int slb_max;            /* 1 + index of last valid entry in slb[] */
 484         int slb_nr;             /* total number of entries in SLB */
 485         struct kvmppc_mmu mmu;
 486         struct kvmppc_vcpu_book3s *book3s;
 487 #endif
 488 #ifdef CONFIG_PPC_BOOK3S_32
 489         struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
 490 #endif
 491
 492         ulong gpr[32];
 493
 494         struct thread_fp_state fp;
 495
 496 #ifdef CONFIG_SPE
 497         ulong evr[32];
 498         ulong spefscr;
 499         ulong host_spefscr;
 500         u64 acc;
 501 #endif
 502 #ifdef CONFIG_ALTIVEC
 503         struct thread_vr_state vr;
 504 #endif
 505
 506 #ifdef CONFIG_KVM_BOOKE_HV
 507         u32 host_mas4;
 508         u32 host_mas6;
 509         u32 shadow_epcr;
 510         u32 shadow_msrp;
 511         u32 eplc;
 512         u32 epsc;
 513         u32 oldpir;
 514 #endif
 515
 516 #if defined(CONFIG_BOOKE)
 517 #if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
 518         u32 epcr;
 519 #endif
 520 #endif
 521
 522 #ifdef CONFIG_PPC_BOOK3S
 523         /* For Gekko paired singles */
 524         u32 qpr[32];
 525 #endif
 526
 527         ulong pc;
 528         ulong ctr;
 529         ulong lr;
 530 #ifdef CONFIG_PPC_BOOK3S
 531         ulong tar;
 532 #endif
 533
 534         ulong xer;
 535         u32 cr;
 536
 537 #ifdef CONFIG_PPC_BOOK3S
 538         ulong hflags;
 539         ulong guest_owned_ext;
 540         ulong purr;
 541         ulong spurr;
 542         ulong ic;
 543         ulong dscr;
 544         ulong amr;
 545         ulong uamor;
 546         ulong iamr;
 547         u32 ctrl;
 548         u32 dabrx;
 549         ulong dabr;
 550         ulong dawr;
 551         ulong dawrx;
 552         ulong ciabr;
 553         ulong cfar;
 554         ulong ppr;
 555         u32 pspb;
 556         ulong fscr;
 557         ulong shadow_fscr;
 558         ulong ebbhr;
 559         ulong ebbrr;
 560         ulong bescr;
 561         ulong csigr;
 562         ulong tacr;
 563         ulong tcscr;
 564         ulong acop;
 565         ulong wort;
 566         ulong tid;
 567         ulong psscr;
 568         ulong hfscr;
 569         ulong shadow_srr1;
 570 #endif
 571         u32 vrsave; /* also USPRG0 */
 572         u32 mmucr;
 573         /* shadow_msr is unused for BookE HV */
 574         ulong shadow_msr;
 575         ulong csrr0;
 576         ulong csrr1;
 577         ulong dsrr0;
 578         ulong dsrr1;
 579         ulong mcsrr0;
 580         ulong mcsrr1;
 581         ulong mcsr;
 582         ulong dec;
 583 #ifdef CONFIG_BOOKE
 584         u32 decar;
 585 #endif
 586         /* Time base value when we entered the guest */
 587         u64 entry_tb;
 588         u64 entry_vtb;
 589         u64 entry_ic;
 590         u32 tcr;
 591         ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
 592         u32 ivor[64];
 593         ulong ivpr;
 594         u32 pvr;
 595
 596         u32 shadow_pid;
 597         u32 shadow_pid1;
 598         u32 pid;
 599         u32 swap_pid;
 600
 601         u32 ccr0;
 602         u32 ccr1;
 603         u32 dbsr;
 604
 605         u64 mmcr[5];
 606         u32 pmc[8];
 607         u32 spmc[2];
 608         u64 siar;
 609         u64 sdar;
 610         u64 sier;
 611 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 612         u64 tfhar;
 613         u64 texasr;
 614         u64 tfiar;
 615
 616         u32 cr_tm;
 617         u64 xer_tm;
 618         u64 lr_tm;
 619         u64 ctr_tm;
 620         u64 amr_tm;
 621         u64 ppr_tm;
 622         u64 dscr_tm;
 623         u64 tar_tm;
 624
 625         ulong gpr_tm[32];
 626
 627         struct thread_fp_state fp_tm;
 628
 629         struct thread_vr_state vr_tm;
 630         u32 vrsave_tm; /* also USPRG0 */
 631
 632 #endif
 633
 634 #ifdef CONFIG_KVM_EXIT_TIMING
 635         struct mutex exit_timing_lock;
 636         struct kvmppc_exit_timing timing_exit;
 637         struct kvmppc_exit_timing timing_last_enter;
 638         u32 last_exit_type;
 639         u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
 640         u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 641         u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 642         u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 643         u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 644         u64 timing_last_exit;
 645         struct dentry *debugfs_exit_timing;
 646 #endif
 647
 648 #ifdef CONFIG_PPC_BOOK3S
 649         ulong fault_dar;
 650         u32 fault_dsisr;
 651         unsigned long intr_msr;
 652         ulong fault_gpa;        /* guest real address of page fault (POWER9) */
 653 #endif
 654
 655 #ifdef CONFIG_BOOKE
 656         ulong fault_dear;
 657         ulong fault_esr;
 658         ulong queued_dear;
 659         ulong queued_esr;
 660         spinlock_t wdt_lock;
 661         struct timer_list wdt_timer;
 662         u32 tlbcfg[4];
 663         u32 tlbps[4];
 664         u32 mmucfg;
 665         u32 eptcfg;
 666         u32 epr;
 667         u64 sprg9;
 668         u32 pwrmgtcr0;
 669         u32 crit_save;
 670         /* guest debug registers*/
 671         struct debug_reg dbg_reg;
 672 #endif
 673         gpa_t paddr_accessed;
 674         gva_t vaddr_accessed;
 675         pgd_t *pgdir;
 676
 677         u8 io_gpr; /* GPR used as IO source/target */
 678         u8 mmio_host_swabbed;
 679         u8 mmio_sign_extend;
 680         /* conversion between single and double precision */
 681         u8 mmio_sp64_extend;
 682         /*
 683          * Number of simulations for vsx.
 684          * If we use 2*8bytes to simulate 1*16bytes,
 685          * then the number should be 2 and
 686          * mmio_vsx_copy_type=KVMPPC_VSX_COPY_DWORD.
 687          * If we use 4*4bytes to simulate 1*16bytes,
 688          * the number should be 4 and
 689          * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD.
 690          */
 691         u8 mmio_vsx_copy_nums;
 692         u8 mmio_vsx_offset;
 693         u8 mmio_vsx_copy_type;
 694         u8 mmio_vsx_tx_sx_enabled;
 695         u8 osi_needed;
 696         u8 osi_enabled;
 697         u8 papr_enabled;
 698         u8 watchdog_enabled;
 699         u8 sane;
 700         u8 cpu_type;
 701         u8 hcall_needed;
 702         u8 epr_flags; /* KVMPPC_EPR_xxx */
 703         u8 epr_needed;
 704
 705         u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
 706
 707         struct hrtimer dec_timer;
 708         u64 dec_jiffies;
 709         u64 dec_expires;
 710         unsigned long pending_exceptions;
 711         u8 ceded;
 712         u8 prodded;
 713         u8 doorbell_request;
 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         u32 xive_pushed;         /* Is the VP pushed on the physical CPU ? */
 744         union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */
 745 #endif
 746
 747 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 748         struct kvm_vcpu_arch_shared shregs;
 749
 750         struct mmio_hpte_cache mmio_cache;
 751         unsigned long pgfault_addr;
 752         long pgfault_index;
 753         unsigned long pgfault_hpte[2];
 754         struct mmio_hpte_cache_entry *pgfault_cache;
 755
 756         struct task_struct *run_task;
 757         struct kvm_run *kvm_run;
 758
 759         spinlock_t vpa_update_lock;
 760         struct kvmppc_vpa vpa;
 761         struct kvmppc_vpa dtl;
 762         struct dtl_entry *dtl_ptr;
 763         unsigned long dtl_index;
 764         u64 stolen_logged;
 765         struct kvmppc_vpa slb_shadow;
 766
 767         spinlock_t tbacct_lock;
 768         u64 busy_stolen;
 769         u64 busy_preempt;
 770
 771         u32 emul_inst;
 772 #endif
 773
 774 #ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
 775         struct kvmhv_tb_accumulator *cur_activity;      /* What we're timing */
 776         u64     cur_tb_start;                   /* when it started */
 777         struct kvmhv_tb_accumulator rm_entry;   /* real-mode entry code */
 778         struct kvmhv_tb_accumulator rm_intr;    /* real-mode intr handling */
 779         struct kvmhv_tb_accumulator rm_exit;    /* real-mode exit code */
 780         struct kvmhv_tb_accumulator guest_time; /* guest execution */
 781         struct kvmhv_tb_accumulator cede_time;  /* time napping inside guest */
 782
 783         struct dentry *debugfs_dir;
 784         struct dentry *debugfs_timings;
 785 #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
 786 };
 787
 788 #define VCPU_FPR(vcpu, i)       (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
 789 #define VCPU_VSX_FPR(vcpu, i, j)        ((vcpu)->arch.fp.fpr[i][j])
 790 #define VCPU_VSX_VR(vcpu, i)            ((vcpu)->arch.vr.vr[i])
 791
 792 /* Values for vcpu->arch.state */
 793 #define KVMPPC_VCPU_NOTREADY            0
 794 #define KVMPPC_VCPU_RUNNABLE            1
 795 #define KVMPPC_VCPU_BUSY_IN_HOST        2
 796
 797 /* Values for vcpu->arch.io_gpr */
 798 #define KVM_MMIO_REG_MASK       0x001f
 799 #define KVM_MMIO_REG_EXT_MASK   0xffe0
 800 #define KVM_MMIO_REG_GPR        0x0000
 801 #define KVM_MMIO_REG_FPR        0x0020
 802 #define KVM_MMIO_REG_QPR        0x0040
 803 #define KVM_MMIO_REG_FQPR       0x0060
 804 #define KVM_MMIO_REG_VSX        0x0080
 805
 806 #define __KVM_HAVE_ARCH_WQP
 807 #define __KVM_HAVE_CREATE_DEVICE
 808
 809 static inline void kvm_arch_hardware_disable(void) {}
 810 static inline void kvm_arch_hardware_unsetup(void) {}
 811 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
 812 static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {}
 813 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
 814 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
 815 static inline void kvm_arch_exit(void) {}
 816 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
 817 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
 818 static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
 819
 820 #endif /* __POWERPC_KVM_HOST_H__ */