LXR linux/arch/powerpc/include/asm/kvm

   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
  46#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
  47#include <asm/kvm_book3s_asm.h>         /* for MAX_SMT_THREADS */
  48#define KVM_MAX_VCPU_ID         (MAX_SMT_THREADS * KVM_MAX_VCORES)
  49#define KVM_MAX_NESTED_GUESTS   KVMPPC_NR_LPIDS
  50
  51#else
  52#define KVM_MAX_VCPU_ID         KVM_MAX_VCPUS
  53#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
  54
  55#define __KVM_HAVE_ARCH_INTC_INITIALIZED
  56
  57#define KVM_HALT_POLL_NS_DEFAULT 10000  /* 10 us */
  58
  59/* These values are internal and can be increased later */
  60#define KVM_NR_IRQCHIPS          1
  61#define KVM_IRQCHIP_NUM_PINS     256
  62
  63/* PPC-specific vcpu->requests bit members */
  64#define KVM_REQ_WATCHDOG        KVM_ARCH_REQ(0)
  65#define KVM_REQ_EPR_EXIT        KVM_ARCH_REQ(1)
  66
  67#include <linux/mmu_notifier.h>
  68
  69#define KVM_ARCH_WANT_MMU_NOTIFIER
  70
  71extern int kvm_unmap_hva_range(struct kvm *kvm,
  72                               unsigned long start, unsigned long end);
  73extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
  74extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
  75extern int kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
  76
  77#define HPTEG_CACHE_NUM                 (1 << 15)
  78#define HPTEG_HASH_BITS_PTE             13
  79#define HPTEG_HASH_BITS_PTE_LONG        12
  80#define HPTEG_HASH_BITS_VPTE            13
  81#define HPTEG_HASH_BITS_VPTE_LONG       5
  82#define HPTEG_HASH_BITS_VPTE_64K        11
  83#define HPTEG_HASH_NUM_PTE              (1 << HPTEG_HASH_BITS_PTE)
  84#define HPTEG_HASH_NUM_PTE_LONG         (1 << HPTEG_HASH_BITS_PTE_LONG)
  85#define HPTEG_HASH_NUM_VPTE             (1 << HPTEG_HASH_BITS_VPTE)
  86#define HPTEG_HASH_NUM_VPTE_LONG        (1 << HPTEG_HASH_BITS_VPTE_LONG)
  87#define HPTEG_HASH_NUM_VPTE_64K         (1 << HPTEG_HASH_BITS_VPTE_64K)
  88
  89/* Physical Address Mask - allowed range of real mode RAM access */
  90#define KVM_PAM                 0x0fffffffffffffffULL
  91
  92struct lppaca;
  93struct slb_shadow;
  94struct dtl_entry;
  95
  96struct kvmppc_vcpu_book3s;
  97struct kvmppc_book3s_shadow_vcpu;
  98struct kvm_nested_guest;
  99
 100struct kvm_vm_stat {
 101        ulong remote_tlb_flush;
 102        ulong num_2M_pages;
 103        ulong num_1G_pages;
 104};
 105
 106struct kvm_vcpu_stat {
 107        u64 sum_exits;
 108        u64 mmio_exits;
 109        u64 signal_exits;
 110        u64 light_exits;
 111        /* Account for special types of light exits: */
 112        u64 itlb_real_miss_exits;
 113        u64 itlb_virt_miss_exits;
 114        u64 dtlb_real_miss_exits;
 115        u64 dtlb_virt_miss_exits;
 116        u64 syscall_exits;
 117        u64 isi_exits;
 118        u64 dsi_exits;
 119        u64 emulated_inst_exits;
 120        u64 dec_exits;
 121        u64 ext_intr_exits;
 122        u64 halt_poll_success_ns;
 123        u64 halt_poll_fail_ns;
 124        u64 halt_wait_ns;
 125        u64 halt_successful_poll;
 126        u64 halt_attempted_poll;
 127        u64 halt_successful_wait;
 128        u64 halt_poll_invalid;
 129        u64 halt_wakeup;
 130        u64 dbell_exits;
 131        u64 gdbell_exits;
 132        u64 ld;
 133        u64 st;
 134#ifdef CONFIG_PPC_BOOK3S
 135        u64 pf_storage;
 136        u64 pf_instruc;
 137        u64 sp_storage;
 138        u64 sp_instruc;
 139        u64 queue_intr;
 140        u64 ld_slow;
 141        u64 st_slow;
 142#endif
 143        u64 pthru_all;
 144        u64 pthru_host;
 145        u64 pthru_bad_aff;
 146};
 147
 148enum kvm_exit_types {
 149        MMIO_EXITS,
 150        SIGNAL_EXITS,
 151        ITLB_REAL_MISS_EXITS,
 152        ITLB_VIRT_MISS_EXITS,
 153        DTLB_REAL_MISS_EXITS,
 154        DTLB_VIRT_MISS_EXITS,
 155        SYSCALL_EXITS,
 156        ISI_EXITS,
 157        DSI_EXITS,
 158        EMULATED_INST_EXITS,
 159        EMULATED_MTMSRWE_EXITS,
 160        EMULATED_WRTEE_EXITS,
 161        EMULATED_MTSPR_EXITS,
 162        EMULATED_MFSPR_EXITS,
 163        EMULATED_MTMSR_EXITS,
 164        EMULATED_MFMSR_EXITS,
 165        EMULATED_TLBSX_EXITS,
 166        EMULATED_TLBWE_EXITS,
 167        EMULATED_RFI_EXITS,
 168        EMULATED_RFCI_EXITS,
 169        EMULATED_RFDI_EXITS,
 170        DEC_EXITS,
 171        EXT_INTR_EXITS,
 172        HALT_WAKEUP,
 173        USR_PR_INST,
 174        FP_UNAVAIL,
 175        DEBUG_EXITS,
 176        TIMEINGUEST,
 177        DBELL_EXITS,
 178        GDBELL_EXITS,
 179        __NUMBER_OF_KVM_EXIT_TYPES
 180};
 181
 182/* allow access to big endian 32bit upper/lower parts and 64bit var */
 183struct kvmppc_exit_timing {
 184        union {
 185                u64 tv64;
 186                struct {
 187                        u32 tbu, tbl;
 188                } tv32;
 189        };
 190};
 191
 192struct kvmppc_pginfo {
 193        unsigned long pfn;
 194        atomic_t refcnt;
 195};
 196
 197struct kvmppc_spapr_tce_iommu_table {
 198        struct rcu_head rcu;
 199        struct list_head next;
 200        struct iommu_table *tbl;
 201        struct kref kref;
 202};
 203
 204#define TCES_PER_PAGE   (PAGE_SIZE / sizeof(u64))
 205
 206struct kvmppc_spapr_tce_table {
 207        struct list_head list;
 208        struct kvm *kvm;
 209        u64 liobn;
 210        struct rcu_head rcu;
 211        u32 page_shift;
 212        u64 offset;             /* in pages */
 213        u64 size;               /* window size in pages */
 214        struct list_head iommu_tables;
 215        struct mutex alloc_lock;
 216        struct page *pages[0];
 217};
 218
 219/* XICS components, defined in book3s_xics.c */
 220struct kvmppc_xics;
 221struct kvmppc_icp;
 222extern struct kvm_device_ops kvm_xics_ops;
 223
 224/* XIVE components, defined in book3s_xive.c */
 225struct kvmppc_xive;
 226struct kvmppc_xive_vcpu;
 227extern struct kvm_device_ops kvm_xive_ops;
 228extern struct kvm_device_ops kvm_xive_native_ops;
 229
 230struct kvmppc_passthru_irqmap;
 231
 232/*
 233 * The reverse mapping array has one entry for each HPTE,
 234 * which stores the guest's view of the second word of the HPTE
 235 * (including the guest physical address of the mapping),
 236 * plus forward and backward pointers in a doubly-linked ring
 237 * of HPTEs that map the same host page.  The pointers in this
 238 * ring are 32-bit HPTE indexes, to save space.
 239 */
 240struct revmap_entry {
 241        unsigned long guest_rpte;
 242        unsigned int forw, back;
 243};
 244
 245/*
 246 * We use the top bit of each memslot->arch.rmap entry as a lock bit,
 247 * and bit 32 as a present flag.  The bottom 32 bits are the
 248 * index in the guest HPT of a HPTE that points to the page.
 249 */
 250#define KVMPPC_RMAP_LOCK_BIT    63
 251#define KVMPPC_RMAP_RC_SHIFT    32
 252#define KVMPPC_RMAP_REFERENCED  (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
 253#define KVMPPC_RMAP_PRESENT     0x100000000ul
 254#define KVMPPC_RMAP_INDEX       0xfffffffful
 255
 256struct kvm_arch_memory_slot {
 257#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 258        unsigned long *rmap;
 259#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 260};
 261
 262struct kvm_hpt_info {
 263        /* Host virtual (linear mapping) address of guest HPT */
 264        unsigned long virt;
 265        /* Array of reverse mapping entries for each guest HPTE */
 266        struct revmap_entry *rev;
 267        /* Guest HPT size is 2**(order) bytes */
 268        u32 order;
 269        /* 1 if HPT allocated with CMA, 0 otherwise */
 270        int cma;
 271};
 272
 273struct kvm_resize_hpt;
 274
 275struct kvm_arch {
 276        unsigned int lpid;
 277        unsigned int smt_mode;          /* # vcpus per virtual core */
 278        unsigned int emul_smt_mode;     /* emualted SMT mode, on P9 */
 279#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 280        unsigned int tlb_sets;
 281        struct kvm_hpt_info hpt;
 282        atomic64_t mmio_update;
 283        unsigned int host_lpid;
 284        unsigned long host_lpcr;
 285        unsigned long sdr1;
 286        unsigned long host_sdr1;
 287        unsigned long lpcr;
 288        unsigned long vrma_slb_v;
 289        int mmu_ready;
 290        atomic_t vcpus_running;
 291        u32 online_vcores;
 292        atomic_t hpte_mod_interest;
 293        cpumask_t need_tlb_flush;
 294        cpumask_t cpu_in_guest;
 295        u8 radix;
 296        u8 fwnmi_enabled;
 297        bool threads_indep;
 298        bool nested_enable;
 299        pgd_t *pgtable;
 300        u64 process_table;
 301        struct dentry *debugfs_dir;
 302        struct dentry *htab_dentry;
 303        struct dentry *radix_dentry;
 304        struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */
 305#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 306#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 307        struct mutex hpt_mutex;
 308#endif
 309#ifdef CONFIG_PPC_BOOK3S_64
 310        struct list_head spapr_tce_tables;
 311        struct list_head rtas_tokens;
 312        struct mutex rtas_token_lock;
 313        DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
 314#endif
 315#ifdef CONFIG_KVM_MPIC
 316        struct openpic *mpic;
 317#endif
 318#ifdef CONFIG_KVM_XICS
 319        struct kvmppc_xics *xics;
 320        struct kvmppc_xive *xive;    /* Current XIVE device in use */
 321        struct {
 322                struct kvmppc_xive *native;
 323                struct kvmppc_xive *xics_on_xive;
 324        } xive_devices;
 325        struct kvmppc_passthru_irqmap *pimap;
 326#endif
 327        struct kvmppc_ops *kvm_ops;
 328#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 329        struct mutex mmu_setup_lock;    /* nests inside vcpu mutexes */
 330        u64 l1_ptcr;
 331        int max_nested_lpid;
 332        struct kvm_nested_guest *nested_guests[KVM_MAX_NESTED_GUESTS];
 333        /* This array can grow quite large, keep it at the end */
 334        struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
 335#endif
 336};
 337
 338#define VCORE_ENTRY_MAP(vc)     ((vc)->entry_exit_map & 0xff)
 339#define VCORE_EXIT_MAP(vc)      ((vc)->entry_exit_map >> 8)
 340#define VCORE_IS_EXITING(vc)    (VCORE_EXIT_MAP(vc) != 0)
 341
 342/* This bit is used when a vcore exit is triggered from outside the vcore */
 343#define VCORE_EXIT_REQ          0x10000
 344
 345/*
 346 * Values for vcore_state.
 347 * Note that these are arranged such that lower values
 348 * (< VCORE_SLEEPING) don't require stolen time accounting
 349 * on load/unload, and higher values do.
 350 */
 351#define VCORE_INACTIVE  0
 352#define VCORE_PREEMPT   1
 353#define VCORE_PIGGYBACK 2
 354#define VCORE_SLEEPING  3
 355#define VCORE_RUNNING   4
 356#define VCORE_EXITING   5
 357#define VCORE_POLLING   6
 358
 359/*
 360 * Struct used to manage memory for a virtual processor area
 361 * registered by a PAPR guest.  There are three types of area
 362 * that a guest can register.
 363 */
 364struct kvmppc_vpa {
 365        unsigned long gpa;      /* Current guest phys addr */
 366        void *pinned_addr;      /* Address in kernel linear mapping */
 367        void *pinned_end;       /* End of region */
 368        unsigned long next_gpa; /* Guest phys addr for update */
 369        unsigned long len;      /* Number of bytes required */
 370        u8 update_pending;      /* 1 => update pinned_addr from next_gpa */
 371        bool dirty;             /* true => area has been modified by kernel */
 372};
 373
 374struct kvmppc_pte {
 375        ulong eaddr;
 376        u64 vpage;
 377        ulong raddr;
 378        bool may_read           : 1;
 379        bool may_write          : 1;
 380        bool may_execute        : 1;
 381        unsigned long wimg;
 382        unsigned long rc;
 383        u8 page_size;           /* MMU_PAGE_xxx */
 384        u8 page_shift;
 385};
 386
 387struct kvmppc_mmu {
 388        /* book3s_64 only */
 389        void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
 390        u64  (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
 391        u64  (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
 392        int  (*slbfee)(struct kvm_vcpu *vcpu, gva_t eaddr, ulong *ret_slb);
 393        void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
 394        void (*slbia)(struct kvm_vcpu *vcpu);
 395        /* book3s */
 396        void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
 397        u32  (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
 398        int  (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
 399                      struct kvmppc_pte *pte, bool data, bool iswrite);
 400        void (*reset_msr)(struct kvm_vcpu *vcpu);
 401        void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
 402        int  (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
 403        u64  (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
 404        bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
 405};
 406
 407struct kvmppc_slb {
 408        u64 esid;
 409        u64 vsid;
 410        u64 orige;
 411        u64 origv;
 412        bool valid      : 1;
 413        bool Ks         : 1;
 414        bool Kp         : 1;
 415        bool nx         : 1;
 416        bool large      : 1;    /* PTEs are 16MB */
 417        bool tb         : 1;    /* 1TB segment */
 418        bool class      : 1;
 419        u8 base_page_size;      /* MMU_PAGE_xxx */
 420};
 421
 422/* Struct used to accumulate timing information in HV real mode code */
 423struct kvmhv_tb_accumulator {
 424        u64     seqcount;       /* used to synchronize access, also count * 2 */
 425        u64     tb_total;       /* total time in timebase ticks */
 426        u64     tb_min;         /* min time */
 427        u64     tb_max;         /* max time */
 428};
 429
 430#ifdef CONFIG_PPC_BOOK3S_64
 431struct kvmppc_irq_map {
 432        u32     r_hwirq;
 433        u32     v_hwirq;
 434        struct irq_desc *desc;
 435};
 436
 437#define KVMPPC_PIRQ_MAPPED      1024
 438struct kvmppc_passthru_irqmap {
 439        int n_mapped;
 440        struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED];
 441};
 442#endif
 443
 444# ifdef CONFIG_PPC_FSL_BOOK3E
 445#define KVMPPC_BOOKE_IAC_NUM    2
 446#define KVMPPC_BOOKE_DAC_NUM    2
 447# else
 448#define KVMPPC_BOOKE_IAC_NUM    4
 449#define KVMPPC_BOOKE_DAC_NUM    2
 450# endif
 451#define KVMPPC_BOOKE_MAX_IAC    4
 452#define KVMPPC_BOOKE_MAX_DAC    2
 453
 454/* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
 455#define KVMPPC_EPR_NONE         0 /* EPR not supported */
 456#define KVMPPC_EPR_USER         1 /* exit to userspace to fill EPR */
 457#define KVMPPC_EPR_KERNEL       2 /* in-kernel irqchip */
 458
 459#define KVMPPC_IRQ_DEFAULT      0
 460#define KVMPPC_IRQ_MPIC         1
 461#define KVMPPC_IRQ_XICS         2 /* Includes a XIVE option */
 462#define KVMPPC_IRQ_XIVE         3 /* XIVE native exploitation mode */
 463
 464#define MMIO_HPTE_CACHE_SIZE    4
 465
 466struct mmio_hpte_cache_entry {
 467        unsigned long hpte_v;
 468        unsigned long hpte_r;
 469        unsigned long rpte;
 470        unsigned long pte_index;
 471        unsigned long eaddr;
 472        unsigned long slb_v;
 473        long mmio_update;
 474        unsigned int slb_base_pshift;
 475};
 476
 477struct mmio_hpte_cache {
 478        struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE];
 479        unsigned int index;
 480};
 481
 482#define KVMPPC_VSX_COPY_NONE            0
 483#define KVMPPC_VSX_COPY_WORD            1
 484#define KVMPPC_VSX_COPY_DWORD           2
 485#define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP 3
 486#define KVMPPC_VSX_COPY_WORD_LOAD_DUMP  4
 487
 488#define KVMPPC_VMX_COPY_BYTE            8
 489#define KVMPPC_VMX_COPY_HWORD           9
 490#define KVMPPC_VMX_COPY_WORD            10
 491#define KVMPPC_VMX_COPY_DWORD           11
 492
 493struct openpic;
 494
 495/* W0 and W1 of a XIVE thread management context */
 496union xive_tma_w01 {
 497        struct {
 498                u8      nsr;
 499                u8      cppr;
 500                u8      ipb;
 501                u8      lsmfb;
 502                u8      ack;
 503                u8      inc;
 504                u8      age;
 505                u8      pipr;
 506        };
 507        __be64 w01;
 508};
 509
 510struct kvm_vcpu_arch {
 511        ulong host_stack;
 512        u32 host_pid;
 513#ifdef CONFIG_PPC_BOOK3S
 514        struct kvmppc_slb slb[64];
 515        int slb_max;            /* 1 + index of last valid entry in slb[] */
 516        int slb_nr;             /* total number of entries in SLB */
 517        struct kvmppc_mmu mmu;
 518        struct kvmppc_vcpu_book3s *book3s;
 519#endif
 520#ifdef CONFIG_PPC_BOOK3S_32
 521        struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
 522#endif
 523
 524        struct pt_regs regs;
 525
 526        struct thread_fp_state fp;
 527
 528#ifdef CONFIG_SPE
 529        ulong evr[32];
 530        ulong spefscr;
 531        ulong host_spefscr;
 532        u64 acc;
 533#endif
 534#ifdef CONFIG_ALTIVEC
 535        struct thread_vr_state vr;
 536#endif
 537
 538#ifdef CONFIG_KVM_BOOKE_HV
 539        u32 host_mas4;
 540        u32 host_mas6;
 541        u32 shadow_epcr;
 542        u32 shadow_msrp;
 543        u32 eplc;
 544        u32 epsc;
 545        u32 oldpir;
 546#endif
 547
 548#if defined(CONFIG_BOOKE)
 549#if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
 550        u32 epcr;
 551#endif
 552#endif
 553
 554#ifdef CONFIG_PPC_BOOK3S
 555        /* For Gekko paired singles */
 556        u32 qpr[32];
 557#endif
 558
 559#ifdef CONFIG_PPC_BOOK3S
 560        ulong tar;
 561#endif
 562
 563#ifdef CONFIG_PPC_BOOK3S
 564        ulong hflags;
 565        ulong guest_owned_ext;
 566        ulong purr;
 567        ulong spurr;
 568        ulong ic;
 569        ulong dscr;
 570        ulong amr;
 571        ulong uamor;
 572        ulong iamr;
 573        u32 ctrl;
 574        u32 dabrx;
 575        ulong dabr;
 576        ulong dawr;
 577        ulong dawrx;
 578        ulong ciabr;
 579        ulong cfar;
 580        ulong ppr;
 581        u32 pspb;
 582        ulong fscr;
 583        ulong shadow_fscr;
 584        ulong ebbhr;
 585        ulong ebbrr;
 586        ulong bescr;
 587        ulong csigr;
 588        ulong tacr;
 589        ulong tcscr;
 590        ulong acop;
 591        ulong wort;
 592        ulong tid;
 593        ulong psscr;
 594        ulong hfscr;
 595        ulong shadow_srr1;
 596#endif
 597        u32 vrsave; /* also USPRG0 */
 598        u32 mmucr;
 599        /* shadow_msr is unused for BookE HV */
 600        ulong shadow_msr;
 601        ulong csrr0;
 602        ulong csrr1;
 603        ulong dsrr0;
 604        ulong dsrr1;
 605        ulong mcsrr0;
 606        ulong mcsrr1;
 607        ulong mcsr;
 608        ulong dec;
 609#ifdef CONFIG_BOOKE
 610        u32 decar;
 611#endif
 612        /* Time base value when we entered the guest */
 613        u64 entry_tb;
 614        u64 entry_vtb;
 615        u64 entry_ic;
 616        u32 tcr;
 617        ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
 618        u32 ivor[64];
 619        ulong ivpr;
 620        u32 pvr;
 621
 622        u32 shadow_pid;
 623        u32 shadow_pid1;
 624        u32 pid;
 625        u32 swap_pid;
 626
 627        u32 ccr0;
 628        u32 ccr1;
 629        u32 dbsr;
 630
 631        u64 mmcr[5];
 632        u32 pmc[8];
 633        u32 spmc[2];
 634        u64 siar;
 635        u64 sdar;
 636        u64 sier;
 637#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 638        u64 tfhar;
 639        u64 texasr;
 640        u64 tfiar;
 641        u64 orig_texasr;
 642
 643        u32 cr_tm;
 644        u64 xer_tm;
 645        u64 lr_tm;
 646        u64 ctr_tm;
 647        u64 amr_tm;
 648        u64 ppr_tm;
 649        u64 dscr_tm;
 650        u64 tar_tm;
 651
 652        ulong gpr_tm[32];
 653
 654        struct thread_fp_state fp_tm;
 655
 656        struct thread_vr_state vr_tm;
 657        u32 vrsave_tm; /* also USPRG0 */
 658#endif
 659
 660#ifdef CONFIG_KVM_EXIT_TIMING
 661        struct mutex exit_timing_lock;
 662        struct kvmppc_exit_timing timing_exit;
 663        struct kvmppc_exit_timing timing_last_enter;
 664        u32 last_exit_type;
 665        u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
 666        u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 667        u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 668        u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 669        u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 670        u64 timing_last_exit;
 671        struct dentry *debugfs_exit_timing;
 672#endif
 673
 674#ifdef CONFIG_PPC_BOOK3S
 675        ulong fault_dar;
 676        u32 fault_dsisr;
 677        unsigned long intr_msr;
 678        ulong fault_gpa;        /* guest real address of page fault (POWER9) */
 679#endif
 680
 681#ifdef CONFIG_BOOKE
 682        ulong fault_dear;
 683        ulong fault_esr;
 684        ulong queued_dear;
 685        ulong queued_esr;
 686        spinlock_t wdt_lock;
 687        struct timer_list wdt_timer;
 688        u32 tlbcfg[4];
 689        u32 tlbps[4];
 690        u32 mmucfg;
 691        u32 eptcfg;
 692        u32 epr;
 693        u64 sprg9;
 694        u32 pwrmgtcr0;
 695        u32 crit_save;
 696        /* guest debug registers*/
 697        struct debug_reg dbg_reg;
 698#endif
 699        gpa_t paddr_accessed;
 700        gva_t vaddr_accessed;
 701        pgd_t *pgdir;
 702
 703        u16 io_gpr; /* GPR used as IO source/target */
 704        u8 mmio_host_swabbed;
 705        u8 mmio_sign_extend;
 706        /* conversion between single and double precision */
 707        u8 mmio_sp64_extend;
 708        /*
 709         * Number of simulations for vsx.
 710         * If we use 2*8bytes to simulate 1*16bytes,
 711         * then the number should be 2 and
 712         * mmio_copy_type=KVMPPC_VSX_COPY_DWORD.
 713         * If we use 4*4bytes to simulate 1*16bytes,
 714         * the number should be 4 and
 715         * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD.
 716         */
 717        u8 mmio_vsx_copy_nums;
 718        u8 mmio_vsx_offset;
 719        u8 mmio_vmx_copy_nums;
 720        u8 mmio_vmx_offset;
 721        u8 mmio_copy_type;
 722        u8 osi_needed;
 723        u8 osi_enabled;
 724        u8 papr_enabled;
 725        u8 watchdog_enabled;
 726        u8 sane;
 727        u8 cpu_type;
 728        u8 hcall_needed;
 729        u8 epr_flags; /* KVMPPC_EPR_xxx */
 730        u8 epr_needed;
 731        u8 external_oneshot;    /* clear external irq after delivery */
 732
 733        u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
 734
 735        struct hrtimer dec_timer;
 736        u64 dec_jiffies;
 737        u64 dec_expires;
 738        unsigned long pending_exceptions;
 739        u8 ceded;
 740        u8 prodded;
 741        u8 doorbell_request;
 742        u8 irq_pending; /* Used by XIVE to signal pending guest irqs */
 743        u32 last_inst;
 744
 745        struct swait_queue_head *wqp;
 746        struct kvmppc_vcore *vcore;
 747        int ret;
 748        int trap;
 749        int state;
 750        int ptid;
 751        int thread_cpu;
 752        int prev_cpu;
 753        bool timer_running;
 754        wait_queue_head_t cpu_run;
 755        struct machine_check_event mce_evt; /* Valid if trap == 0x200 */
 756
 757        struct kvm_vcpu_arch_shared *shared;
 758#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
 759        bool shared_big_endian;
 760#endif
 761        unsigned long magic_page_pa; /* phys addr to map the magic page to */
 762        unsigned long magic_page_ea; /* effect. addr to map the magic page to */
 763        bool disable_kernel_nx;
 764
 765        int irq_type;           /* one of KVM_IRQ_* */
 766        int irq_cpu_id;
 767        struct openpic *mpic;   /* KVM_IRQ_MPIC */
 768#ifdef CONFIG_KVM_XICS
 769        struct kvmppc_icp *icp; /* XICS presentation controller */
 770        struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */
 771        __be32 xive_cam_word;    /* Cooked W2 in proper endian with valid bit */
 772        u8 xive_pushed;          /* Is the VP pushed on the physical CPU ? */
 773        u8 xive_esc_on;          /* Is the escalation irq enabled ? */
 774        union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */
 775        u64 xive_esc_raddr;      /* Escalation interrupt ESB real addr */
 776        u64 xive_esc_vaddr;      /* Escalation interrupt ESB virt addr */
 777#endif
 778
 779#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 780        struct kvm_vcpu_arch_shared shregs;
 781
 782        struct mmio_hpte_cache mmio_cache;
 783        unsigned long pgfault_addr;
 784        long pgfault_index;
 785        unsigned long pgfault_hpte[2];
 786        struct mmio_hpte_cache_entry *pgfault_cache;
 787
 788        struct task_struct *run_task;
 789        struct kvm_run *kvm_run;
 790
 791        spinlock_t vpa_update_lock;
 792        struct kvmppc_vpa vpa;
 793        struct kvmppc_vpa dtl;
 794        struct dtl_entry *dtl_ptr;
 795        unsigned long dtl_index;
 796        u64 stolen_logged;
 797        struct kvmppc_vpa slb_shadow;
 798
 799        spinlock_t tbacct_lock;
 800        u64 busy_stolen;
 801        u64 busy_preempt;
 802
 803        u32 emul_inst;
 804
 805        u32 online;
 806
 807        /* For support of nested guests */
 808        struct kvm_nested_guest *nested;
 809        u32 nested_vcpu_id;
 810        gpa_t nested_io_gpr;
 811#endif
 812
 813#ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
 814        struct kvmhv_tb_accumulator *cur_activity;      /* What we're timing */
 815        u64     cur_tb_start;                   /* when it started */
 816        struct kvmhv_tb_accumulator rm_entry;   /* real-mode entry code */
 817        struct kvmhv_tb_accumulator rm_intr;    /* real-mode intr handling */
 818        struct kvmhv_tb_accumulator rm_exit;    /* real-mode exit code */
 819        struct kvmhv_tb_accumulator guest_time; /* guest execution */
 820        struct kvmhv_tb_accumulator cede_time;  /* time napping inside guest */
 821
 822        struct dentry *debugfs_dir;
 823        struct dentry *debugfs_timings;
 824#endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
 825};
 826
 827#define VCPU_FPR(vcpu, i)       (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
 828#define VCPU_VSX_FPR(vcpu, i, j)        ((vcpu)->arch.fp.fpr[i][j])
 829#define VCPU_VSX_VR(vcpu, i)            ((vcpu)->arch.vr.vr[i])
 830
 831/* Values for vcpu->arch.state */
 832#define KVMPPC_VCPU_NOTREADY            0
 833#define KVMPPC_VCPU_RUNNABLE            1
 834#define KVMPPC_VCPU_BUSY_IN_HOST        2
 835
 836/* Values for vcpu->arch.io_gpr */
 837#define KVM_MMIO_REG_MASK       0x003f
 838#define KVM_MMIO_REG_EXT_MASK   0xffc0
 839#define KVM_MMIO_REG_GPR        0x0000
 840#define KVM_MMIO_REG_FPR        0x0040
 841#define KVM_MMIO_REG_QPR        0x0080
 842#define KVM_MMIO_REG_FQPR       0x00c0
 843#define KVM_MMIO_REG_VSX        0x0100
 844#define KVM_MMIO_REG_VMX        0x0180
 845#define KVM_MMIO_REG_NESTED_GPR 0xffc0
 846
 847
 848#define __KVM_HAVE_ARCH_WQP
 849#define __KVM_HAVE_CREATE_DEVICE
 850
 851static inline void kvm_arch_hardware_disable(void) {}
 852static inline void kvm_arch_hardware_unsetup(void) {}
 853static inline void kvm_arch_sync_events(struct kvm *kvm) {}
 854static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}
 855static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
 856static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
 857static inline void kvm_arch_exit(void) {}
 858static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
 859static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
 860static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
 861
 862#endif /* __POWERPC_KVM_HOST_H__ */
 863