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