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

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 *
   4 * Copyright IBM Corp. 2007
   5 *
   6 * Authors: Hollis Blanchard <hollisb@us.ibm.com>
   7 */
   8
   9#ifndef __POWERPC_KVM_HOST_H__
  10#define __POWERPC_KVM_HOST_H__
  11
  12#include <linux/mutex.h>
  13#include <linux/hrtimer.h>
  14#include <linux/interrupt.h>
  15#include <linux/types.h>
  16#include <linux/kvm_types.h>
  17#include <linux/threads.h>
  18#include <linux/spinlock.h>
  19#include <linux/kvm_para.h>
  20#include <linux/list.h>
  21#include <linux/atomic.h>
  22#include <asm/kvm_asm.h>
  23#include <asm/processor.h>
  24#include <asm/page.h>
  25#include <asm/cacheflush.h>
  26#include <asm/hvcall.h>
  27#include <asm/mce.h>
  28
  29#define KVM_MAX_VCPUS           NR_CPUS
  30#define KVM_MAX_VCORES          NR_CPUS
  31
  32#include <asm/cputhreads.h>
  33
  34#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
  35#include <asm/kvm_book3s_asm.h>         /* for MAX_SMT_THREADS */
  36#define KVM_MAX_VCPU_ID         (MAX_SMT_THREADS * KVM_MAX_VCORES)
  37#define KVM_MAX_NESTED_GUESTS   KVMPPC_NR_LPIDS
  38
  39#else
  40#define KVM_MAX_VCPU_ID         KVM_MAX_VCPUS
  41#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
  42
  43#define __KVM_HAVE_ARCH_INTC_INITIALIZED
  44
  45#define KVM_HALT_POLL_NS_DEFAULT 10000  /* 10 us */
  46
  47/* These values are internal and can be increased later */
  48#define KVM_NR_IRQCHIPS          1
  49#define KVM_IRQCHIP_NUM_PINS     256
  50
  51/* PPC-specific vcpu->requests bit members */
  52#define KVM_REQ_WATCHDOG        KVM_ARCH_REQ(0)
  53#define KVM_REQ_EPR_EXIT        KVM_ARCH_REQ(1)
  54#define KVM_REQ_PENDING_TIMER   KVM_ARCH_REQ(2)
  55
  56#include <linux/mmu_notifier.h>
  57
  58#define KVM_ARCH_WANT_MMU_NOTIFIER
  59
  60#define HPTEG_CACHE_NUM                 (1 << 15)
  61#define HPTEG_HASH_BITS_PTE             13
  62#define HPTEG_HASH_BITS_PTE_LONG        12
  63#define HPTEG_HASH_BITS_VPTE            13
  64#define HPTEG_HASH_BITS_VPTE_LONG       5
  65#define HPTEG_HASH_BITS_VPTE_64K        11
  66#define HPTEG_HASH_NUM_PTE              (1 << HPTEG_HASH_BITS_PTE)
  67#define HPTEG_HASH_NUM_PTE_LONG         (1 << HPTEG_HASH_BITS_PTE_LONG)
  68#define HPTEG_HASH_NUM_VPTE             (1 << HPTEG_HASH_BITS_VPTE)
  69#define HPTEG_HASH_NUM_VPTE_LONG        (1 << HPTEG_HASH_BITS_VPTE_LONG)
  70#define HPTEG_HASH_NUM_VPTE_64K         (1 << HPTEG_HASH_BITS_VPTE_64K)
  71
  72/* Physical Address Mask - allowed range of real mode RAM access */
  73#define KVM_PAM                 0x0fffffffffffffffULL
  74
  75struct lppaca;
  76struct slb_shadow;
  77struct dtl_entry;
  78
  79struct kvmppc_vcpu_book3s;
  80struct kvmppc_book3s_shadow_vcpu;
  81struct kvm_nested_guest;
  82
  83struct kvm_vm_stat {
  84        struct kvm_vm_stat_generic generic;
  85        u64 num_2M_pages;
  86        u64 num_1G_pages;
  87};
  88
  89struct kvm_vcpu_stat {
  90        struct kvm_vcpu_stat_generic generic;
  91        u64 sum_exits;
  92        u64 mmio_exits;
  93        u64 signal_exits;
  94        u64 light_exits;
  95        /* Account for special types of light exits: */
  96        u64 itlb_real_miss_exits;
  97        u64 itlb_virt_miss_exits;
  98        u64 dtlb_real_miss_exits;
  99        u64 dtlb_virt_miss_exits;
 100        u64 syscall_exits;
 101        u64 isi_exits;
 102        u64 dsi_exits;
 103        u64 emulated_inst_exits;
 104        u64 dec_exits;
 105        u64 ext_intr_exits;
 106        u64 halt_wait_ns;
 107        u64 halt_successful_wait;
 108        u64 dbell_exits;
 109        u64 gdbell_exits;
 110        u64 ld;
 111        u64 st;
 112#ifdef CONFIG_PPC_BOOK3S
 113        u64 pf_storage;
 114        u64 pf_instruc;
 115        u64 sp_storage;
 116        u64 sp_instruc;
 117        u64 queue_intr;
 118        u64 ld_slow;
 119        u64 st_slow;
 120#endif
 121        u64 pthru_all;
 122        u64 pthru_host;
 123        u64 pthru_bad_aff;
 124};
 125
 126enum kvm_exit_types {
 127        MMIO_EXITS,
 128        SIGNAL_EXITS,
 129        ITLB_REAL_MISS_EXITS,
 130        ITLB_VIRT_MISS_EXITS,
 131        DTLB_REAL_MISS_EXITS,
 132        DTLB_VIRT_MISS_EXITS,
 133        SYSCALL_EXITS,
 134        ISI_EXITS,
 135        DSI_EXITS,
 136        EMULATED_INST_EXITS,
 137        EMULATED_MTMSRWE_EXITS,
 138        EMULATED_WRTEE_EXITS,
 139        EMULATED_MTSPR_EXITS,
 140        EMULATED_MFSPR_EXITS,
 141        EMULATED_MTMSR_EXITS,
 142        EMULATED_MFMSR_EXITS,
 143        EMULATED_TLBSX_EXITS,
 144        EMULATED_TLBWE_EXITS,
 145        EMULATED_RFI_EXITS,
 146        EMULATED_RFCI_EXITS,
 147        EMULATED_RFDI_EXITS,
 148        DEC_EXITS,
 149        EXT_INTR_EXITS,
 150        HALT_WAKEUP,
 151        USR_PR_INST,
 152        FP_UNAVAIL,
 153        DEBUG_EXITS,
 154        TIMEINGUEST,
 155        DBELL_EXITS,
 156        GDBELL_EXITS,
 157        __NUMBER_OF_KVM_EXIT_TYPES
 158};
 159
 160/* allow access to big endian 32bit upper/lower parts and 64bit var */
 161struct kvmppc_exit_timing {
 162        union {
 163                u64 tv64;
 164                struct {
 165                        u32 tbu, tbl;
 166                } tv32;
 167        };
 168};
 169
 170struct kvmppc_pginfo {
 171        unsigned long pfn;
 172        atomic_t refcnt;
 173};
 174
 175struct kvmppc_spapr_tce_iommu_table {
 176        struct rcu_head rcu;
 177        struct list_head next;
 178        struct iommu_table *tbl;
 179        struct kref kref;
 180};
 181
 182#define TCES_PER_PAGE   (PAGE_SIZE / sizeof(u64))
 183
 184struct kvmppc_spapr_tce_table {
 185        struct list_head list;
 186        struct kvm *kvm;
 187        u64 liobn;
 188        struct rcu_head rcu;
 189        u32 page_shift;
 190        u64 offset;             /* in pages */
 191        u64 size;               /* window size in pages */
 192        struct list_head iommu_tables;
 193        struct mutex alloc_lock;
 194        struct page *pages[0];
 195};
 196
 197/* XICS components, defined in book3s_xics.c */
 198struct kvmppc_xics;
 199struct kvmppc_icp;
 200extern struct kvm_device_ops kvm_xics_ops;
 201
 202/* XIVE components, defined in book3s_xive.c */
 203struct kvmppc_xive;
 204struct kvmppc_xive_vcpu;
 205extern struct kvm_device_ops kvm_xive_ops;
 206extern struct kvm_device_ops kvm_xive_native_ops;
 207
 208struct kvmppc_passthru_irqmap;
 209
 210/*
 211 * The reverse mapping array has one entry for each HPTE,
 212 * which stores the guest's view of the second word of the HPTE
 213 * (including the guest physical address of the mapping),
 214 * plus forward and backward pointers in a doubly-linked ring
 215 * of HPTEs that map the same host page.  The pointers in this
 216 * ring are 32-bit HPTE indexes, to save space.
 217 */
 218struct revmap_entry {
 219        unsigned long guest_rpte;
 220        unsigned int forw, back;
 221};
 222
 223/*
 224 * The rmap array of size number of guest pages is allocated for each memslot.
 225 * This array is used to store usage specific information about the guest page.
 226 * Below are the encodings of the various possible usage types.
 227 */
 228/* Free bits which can be used to define a new usage */
 229#define KVMPPC_RMAP_TYPE_MASK   0xff00000000000000
 230#define KVMPPC_RMAP_NESTED      0xc000000000000000      /* Nested rmap array */
 231#define KVMPPC_RMAP_HPT         0x0100000000000000      /* HPT guest */
 232
 233/*
 234 * rmap usage definition for a hash page table (hpt) guest:
 235 * 0x0000080000000000   Lock bit
 236 * 0x0000018000000000   RC bits
 237 * 0x0000000100000000   Present bit
 238 * 0x00000000ffffffff   HPT index bits
 239 * The bottom 32 bits are the index in the guest HPT of a HPTE that points to
 240 * the page.
 241 */
 242#define KVMPPC_RMAP_LOCK_BIT    43
 243#define KVMPPC_RMAP_RC_SHIFT    32
 244#define KVMPPC_RMAP_REFERENCED  (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
 245#define KVMPPC_RMAP_PRESENT     0x100000000ul
 246#define KVMPPC_RMAP_INDEX       0xfffffffful
 247
 248struct kvm_arch_memory_slot {
 249#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 250        unsigned long *rmap;
 251#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 252};
 253
 254struct kvm_hpt_info {
 255        /* Host virtual (linear mapping) address of guest HPT */
 256        unsigned long virt;
 257        /* Array of reverse mapping entries for each guest HPTE */
 258        struct revmap_entry *rev;
 259        /* Guest HPT size is 2**(order) bytes */
 260        u32 order;
 261        /* 1 if HPT allocated with CMA, 0 otherwise */
 262        int cma;
 263};
 264
 265struct kvm_resize_hpt;
 266
 267/* Flag values for kvm_arch.secure_guest */
 268#define KVMPPC_SECURE_INIT_START 0x1 /* H_SVM_INIT_START has been called */
 269#define KVMPPC_SECURE_INIT_DONE  0x2 /* H_SVM_INIT_DONE completed */
 270#define KVMPPC_SECURE_INIT_ABORT 0x4 /* H_SVM_INIT_ABORT issued */
 271
 272struct kvm_arch {
 273        unsigned int lpid;
 274        unsigned int smt_mode;          /* # vcpus per virtual core */
 275        unsigned int emul_smt_mode;     /* emualted SMT mode, on P9 */
 276#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 277        unsigned int tlb_sets;
 278        struct kvm_hpt_info hpt;
 279        atomic64_t mmio_update;
 280        unsigned int host_lpid;
 281        unsigned long host_lpcr;
 282        unsigned long sdr1;
 283        unsigned long host_sdr1;
 284        unsigned long lpcr;
 285        unsigned long vrma_slb_v;
 286        int mmu_ready;
 287        atomic_t vcpus_running;
 288        u32 online_vcores;
 289        atomic_t hpte_mod_interest;
 290        cpumask_t need_tlb_flush;
 291        cpumask_t cpu_in_guest;
 292        u8 radix;
 293        u8 fwnmi_enabled;
 294        u8 secure_guest;
 295        u8 svm_enabled;
 296        bool nested_enable;
 297        bool dawr1_enabled;
 298        pgd_t *pgtable;
 299        u64 process_table;
 300        struct dentry *debugfs_dir;
 301        struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */
 302#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 303#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 304        struct mutex hpt_mutex;
 305#endif
 306#ifdef CONFIG_PPC_BOOK3S_64
 307        struct list_head spapr_tce_tables;
 308        struct list_head rtas_tokens;
 309        struct mutex rtas_token_lock;
 310        DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
 311#endif
 312#ifdef CONFIG_KVM_MPIC
 313        struct openpic *mpic;
 314#endif
 315#ifdef CONFIG_KVM_XICS
 316        struct kvmppc_xics *xics;
 317        struct kvmppc_xics *xics_device;
 318        struct kvmppc_xive *xive;    /* Current XIVE device in use */
 319        struct {
 320                struct kvmppc_xive *native;
 321                struct kvmppc_xive *xics_on_xive;
 322        } xive_devices;
 323        struct kvmppc_passthru_irqmap *pimap;
 324#endif
 325        struct kvmppc_ops *kvm_ops;
 326#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 327        struct mutex uvmem_lock;
 328        struct list_head uvmem_pfns;
 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 (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
 401        int  (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
 402        u64  (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
 403        bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
 404};
 405
 406struct kvmppc_slb {
 407        u64 esid;
 408        u64 vsid;
 409        u64 orige;
 410        u64 origv;
 411        bool valid      : 1;
 412        bool Ks         : 1;
 413        bool Kp         : 1;
 414        bool nx         : 1;
 415        bool large      : 1;    /* PTEs are 16MB */
 416        bool tb         : 1;    /* 1TB segment */
 417        bool class      : 1;
 418        u8 base_page_size;      /* MMU_PAGE_xxx */
 419};
 420
 421/* Struct used to accumulate timing information in HV real mode code */
 422struct kvmhv_tb_accumulator {
 423        u64     seqcount;       /* used to synchronize access, also count * 2 */
 424        u64     tb_total;       /* total time in timebase ticks */
 425        u64     tb_min;         /* min time */
 426        u64     tb_max;         /* max time */
 427};
 428
 429#ifdef CONFIG_PPC_BOOK3S_64
 430struct kvmppc_irq_map {
 431        u32     r_hwirq;
 432        u32     v_hwirq;
 433        struct irq_desc *desc;
 434};
 435
 436#define KVMPPC_PIRQ_MAPPED      1024
 437struct kvmppc_passthru_irqmap {
 438        int n_mapped;
 439        struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED];
 440};
 441#endif
 442
 443# ifdef CONFIG_PPC_FSL_BOOK3E
 444#define KVMPPC_BOOKE_IAC_NUM    2
 445#define KVMPPC_BOOKE_DAC_NUM    2
 446# else
 447#define KVMPPC_BOOKE_IAC_NUM    4
 448#define KVMPPC_BOOKE_DAC_NUM    2
 449# endif
 450#define KVMPPC_BOOKE_MAX_IAC    4
 451#define KVMPPC_BOOKE_MAX_DAC    2
 452
 453/* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
 454#define KVMPPC_EPR_NONE         0 /* EPR not supported */
 455#define KVMPPC_EPR_USER         1 /* exit to userspace to fill EPR */
 456#define KVMPPC_EPR_KERNEL       2 /* in-kernel irqchip */
 457
 458#define KVMPPC_IRQ_DEFAULT      0
 459#define KVMPPC_IRQ_MPIC         1
 460#define KVMPPC_IRQ_XICS         2 /* Includes a XIVE option */
 461#define KVMPPC_IRQ_XIVE         3 /* XIVE native exploitation mode */
 462
 463#define MMIO_HPTE_CACHE_SIZE    4
 464
 465struct mmio_hpte_cache_entry {
 466        unsigned long hpte_v;
 467        unsigned long hpte_r;
 468        unsigned long rpte;
 469        unsigned long pte_index;
 470        unsigned long eaddr;
 471        unsigned long slb_v;
 472        long mmio_update;
 473        unsigned int slb_base_pshift;
 474};
 475
 476struct mmio_hpte_cache {
 477        struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE];
 478        unsigned int index;
 479};
 480
 481#define KVMPPC_VSX_COPY_NONE            0
 482#define KVMPPC_VSX_COPY_WORD            1
 483#define KVMPPC_VSX_COPY_DWORD           2
 484#define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP 3
 485#define KVMPPC_VSX_COPY_WORD_LOAD_DUMP  4
 486
 487#define KVMPPC_VMX_COPY_BYTE            8
 488#define KVMPPC_VMX_COPY_HWORD           9
 489#define KVMPPC_VMX_COPY_WORD            10
 490#define KVMPPC_VMX_COPY_DWORD           11
 491
 492struct openpic;
 493
 494/* W0 and W1 of a XIVE thread management context */
 495union xive_tma_w01 {
 496        struct {
 497                u8      nsr;
 498                u8      cppr;
 499                u8      ipb;
 500                u8      lsmfb;
 501                u8      ack;
 502                u8      inc;
 503                u8      age;
 504                u8      pipr;
 505        };
 506        __be64 w01;
 507};
 508
 509struct kvm_vcpu_arch {
 510        ulong host_stack;
 511        u32 host_pid;
 512#ifdef CONFIG_PPC_BOOK3S
 513        struct kvmppc_slb slb[64];
 514        int slb_max;            /* 1 + index of last valid entry in slb[] */
 515        int slb_nr;             /* total number of entries in SLB */
 516        struct kvmppc_mmu mmu;
 517        struct kvmppc_vcpu_book3s *book3s;
 518#endif
 519#ifdef CONFIG_PPC_BOOK3S_32
 520        struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
 521#endif
 522
 523        struct pt_regs regs;
 524
 525        struct thread_fp_state fp;
 526
 527#ifdef CONFIG_SPE
 528        ulong evr[32];
 529        ulong spefscr;
 530        ulong host_spefscr;
 531        u64 acc;
 532#endif
 533#ifdef CONFIG_ALTIVEC
 534        struct thread_vr_state vr;
 535#endif
 536
 537#ifdef CONFIG_KVM_BOOKE_HV
 538        u32 host_mas4;
 539        u32 host_mas6;
 540        u32 shadow_epcr;
 541        u32 shadow_msrp;
 542        u32 eplc;
 543        u32 epsc;
 544        u32 oldpir;
 545#endif
 546
 547#if defined(CONFIG_BOOKE)
 548#if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
 549        u32 epcr;
 550#endif
 551#endif
 552
 553#ifdef CONFIG_PPC_BOOK3S
 554        /* For Gekko paired singles */
 555        u32 qpr[32];
 556#endif
 557
 558#ifdef CONFIG_PPC_BOOK3S
 559        ulong tar;
 560#endif
 561
 562#ifdef CONFIG_PPC_BOOK3S
 563        ulong hflags;
 564        ulong guest_owned_ext;
 565        ulong purr;
 566        ulong spurr;
 567        ulong ic;
 568        ulong dscr;
 569        ulong amr;
 570        ulong uamor;
 571        ulong iamr;
 572        u32 ctrl;
 573        u32 dabrx;
 574        ulong dabr;
 575        ulong dawr0;
 576        ulong dawrx0;
 577        ulong dawr1;
 578        ulong dawrx1;
 579        ulong ciabr;
 580        ulong cfar;
 581        ulong ppr;
 582        u32 pspb;
 583        ulong fscr;
 584        ulong shadow_fscr;
 585        ulong ebbhr;
 586        ulong ebbrr;
 587        ulong bescr;
 588        ulong csigr;
 589        ulong tacr;
 590        ulong tcscr;
 591        ulong acop;
 592        ulong wort;
 593        ulong tid;
 594        ulong psscr;
 595        ulong hfscr;
 596        ulong shadow_srr1;
 597#endif
 598        u32 vrsave; /* also USPRG0 */
 599        u32 mmucr;
 600        /* shadow_msr is unused for BookE HV */
 601        ulong shadow_msr;
 602        ulong csrr0;
 603        ulong csrr1;
 604        ulong dsrr0;
 605        ulong dsrr1;
 606        ulong mcsrr0;
 607        ulong mcsrr1;
 608        ulong mcsr;
 609        ulong dec;
 610#ifdef CONFIG_BOOKE
 611        u32 decar;
 612#endif
 613        /* Time base value when we entered the guest */
 614        u64 entry_tb;
 615        u64 entry_vtb;
 616        u64 entry_ic;
 617        u32 tcr;
 618        ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
 619        u32 ivor[64];
 620        ulong ivpr;
 621        u32 pvr;
 622
 623        u32 shadow_pid;
 624        u32 shadow_pid1;
 625        u32 pid;
 626        u32 swap_pid;
 627
 628        u32 ccr0;
 629        u32 ccr1;
 630        u32 dbsr;
 631
 632        u64 mmcr[4];    /* MMCR0, MMCR1, MMCR2, MMCR3 */
 633        u64 mmcra;
 634        u64 mmcrs;
 635        u32 pmc[8];
 636        u32 spmc[2];
 637        u64 siar;
 638        u64 sdar;
 639        u64 sier[3];
 640#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 641        u64 tfhar;
 642        u64 texasr;
 643        u64 tfiar;
 644        u64 orig_texasr;
 645
 646        u32 cr_tm;
 647        u64 xer_tm;
 648        u64 lr_tm;
 649        u64 ctr_tm;
 650        u64 amr_tm;
 651        u64 ppr_tm;
 652        u64 dscr_tm;
 653        u64 tar_tm;
 654
 655        ulong gpr_tm[32];
 656
 657        struct thread_fp_state fp_tm;
 658
 659        struct thread_vr_state vr_tm;
 660        u32 vrsave_tm; /* also USPRG0 */
 661#endif
 662
 663#ifdef CONFIG_KVM_EXIT_TIMING
 664        struct mutex exit_timing_lock;
 665        struct kvmppc_exit_timing timing_exit;
 666        struct kvmppc_exit_timing timing_last_enter;
 667        u32 last_exit_type;
 668        u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
 669        u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 670        u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 671        u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 672        u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 673        u64 timing_last_exit;
 674        struct dentry *debugfs_exit_timing;
 675#endif
 676
 677#ifdef CONFIG_PPC_BOOK3S
 678        ulong fault_dar;
 679        u32 fault_dsisr;
 680        unsigned long intr_msr;
 681        /*
 682         * POWER9 and later: fault_gpa contains the guest real address of page
 683         * fault for a radix guest, or segment descriptor (equivalent to result
 684         * from slbmfev of SLB entry that translated the EA) for hash guests.
 685         */
 686        ulong fault_gpa;
 687#endif
 688
 689#ifdef CONFIG_BOOKE
 690        ulong fault_dear;
 691        ulong fault_esr;
 692        ulong queued_dear;
 693        ulong queued_esr;
 694        spinlock_t wdt_lock;
 695        struct timer_list wdt_timer;
 696        u32 tlbcfg[4];
 697        u32 tlbps[4];
 698        u32 mmucfg;
 699        u32 eptcfg;
 700        u32 epr;
 701        u64 sprg9;
 702        u32 pwrmgtcr0;
 703        u32 crit_save;
 704        /* guest debug registers*/
 705        struct debug_reg dbg_reg;
 706#endif
 707        gpa_t paddr_accessed;
 708        gva_t vaddr_accessed;
 709        pgd_t *pgdir;
 710
 711        u16 io_gpr; /* GPR used as IO source/target */
 712        u8 mmio_host_swabbed;
 713        u8 mmio_sign_extend;
 714        /* conversion between single and double precision */
 715        u8 mmio_sp64_extend;
 716        /*
 717         * Number of simulations for vsx.
 718         * If we use 2*8bytes to simulate 1*16bytes,
 719         * then the number should be 2 and
 720         * mmio_copy_type=KVMPPC_VSX_COPY_DWORD.
 721         * If we use 4*4bytes to simulate 1*16bytes,
 722         * the number should be 4 and
 723         * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD.
 724         */
 725        u8 mmio_vsx_copy_nums;
 726        u8 mmio_vsx_offset;
 727        u8 mmio_vmx_copy_nums;
 728        u8 mmio_vmx_offset;
 729        u8 mmio_copy_type;
 730        u8 osi_needed;
 731        u8 osi_enabled;
 732        u8 papr_enabled;
 733        u8 watchdog_enabled;
 734        u8 sane;
 735        u8 cpu_type;
 736        u8 hcall_needed;
 737        u8 epr_flags; /* KVMPPC_EPR_xxx */
 738        u8 epr_needed;
 739        u8 external_oneshot;    /* clear external irq after delivery */
 740
 741        u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
 742
 743        struct hrtimer dec_timer;
 744        u64 dec_jiffies;
 745        u64 dec_expires;
 746        unsigned long pending_exceptions;
 747        u8 ceded;
 748        u8 prodded;
 749        u8 doorbell_request;
 750        u8 irq_pending; /* Used by XIVE to signal pending guest irqs */
 751        u32 last_inst;
 752
 753        struct rcuwait *waitp;
 754        struct kvmppc_vcore *vcore;
 755        int ret;
 756        int trap;
 757        int state;
 758        int ptid;
 759        int thread_cpu;
 760        int prev_cpu;
 761        bool timer_running;
 762        wait_queue_head_t cpu_run;
 763        struct machine_check_event mce_evt; /* Valid if trap == 0x200 */
 764
 765        struct kvm_vcpu_arch_shared *shared;
 766#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
 767        bool shared_big_endian;
 768#endif
 769        unsigned long magic_page_pa; /* phys addr to map the magic page to */
 770        unsigned long magic_page_ea; /* effect. addr to map the magic page to */
 771        bool disable_kernel_nx;
 772
 773        int irq_type;           /* one of KVM_IRQ_* */
 774        int irq_cpu_id;
 775        struct openpic *mpic;   /* KVM_IRQ_MPIC */
 776#ifdef CONFIG_KVM_XICS
 777        struct kvmppc_icp *icp; /* XICS presentation controller */
 778        struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */
 779        __be32 xive_cam_word;    /* Cooked W2 in proper endian with valid bit */
 780        u8 xive_pushed;          /* Is the VP pushed on the physical CPU ? */
 781        u8 xive_esc_on;          /* Is the escalation irq enabled ? */
 782        union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */
 783        u64 xive_esc_raddr;      /* Escalation interrupt ESB real addr */
 784        u64 xive_esc_vaddr;      /* Escalation interrupt ESB virt addr */
 785#endif
 786
 787#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 788        struct kvm_vcpu_arch_shared shregs;
 789
 790        struct mmio_hpte_cache mmio_cache;
 791        unsigned long pgfault_addr;
 792        long pgfault_index;
 793        unsigned long pgfault_hpte[2];
 794        struct mmio_hpte_cache_entry *pgfault_cache;
 795
 796        struct task_struct *run_task;
 797
 798        spinlock_t vpa_update_lock;
 799        struct kvmppc_vpa vpa;
 800        struct kvmppc_vpa dtl;
 801        struct dtl_entry *dtl_ptr;
 802        unsigned long dtl_index;
 803        u64 stolen_logged;
 804        struct kvmppc_vpa slb_shadow;
 805
 806        spinlock_t tbacct_lock;
 807        u64 busy_stolen;
 808        u64 busy_preempt;
 809
 810        u32 emul_inst;
 811
 812        u32 online;
 813
 814        /* For support of nested guests */
 815        struct kvm_nested_guest *nested;
 816        u32 nested_vcpu_id;
 817        gpa_t nested_io_gpr;
 818#endif
 819
 820#ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
 821        struct kvmhv_tb_accumulator *cur_activity;      /* What we're timing */
 822        u64     cur_tb_start;                   /* when it started */
 823        struct kvmhv_tb_accumulator rm_entry;   /* real-mode entry code */
 824        struct kvmhv_tb_accumulator rm_intr;    /* real-mode intr handling */
 825        struct kvmhv_tb_accumulator rm_exit;    /* real-mode exit code */
 826        struct kvmhv_tb_accumulator guest_time; /* guest execution */
 827        struct kvmhv_tb_accumulator cede_time;  /* time napping inside guest */
 828
 829        struct dentry *debugfs_dir;
 830#endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
 831};
 832
 833#define VCPU_FPR(vcpu, i)       (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
 834#define VCPU_VSX_FPR(vcpu, i, j)        ((vcpu)->arch.fp.fpr[i][j])
 835#define VCPU_VSX_VR(vcpu, i)            ((vcpu)->arch.vr.vr[i])
 836
 837/* Values for vcpu->arch.state */
 838#define KVMPPC_VCPU_NOTREADY            0
 839#define KVMPPC_VCPU_RUNNABLE            1
 840#define KVMPPC_VCPU_BUSY_IN_HOST        2
 841
 842/* Values for vcpu->arch.io_gpr */
 843#define KVM_MMIO_REG_MASK       0x003f
 844#define KVM_MMIO_REG_EXT_MASK   0xffc0
 845#define KVM_MMIO_REG_GPR        0x0000
 846#define KVM_MMIO_REG_FPR        0x0040
 847#define KVM_MMIO_REG_QPR        0x0080
 848#define KVM_MMIO_REG_FQPR       0x00c0
 849#define KVM_MMIO_REG_VSX        0x0100
 850#define KVM_MMIO_REG_VMX        0x0180
 851#define KVM_MMIO_REG_NESTED_GPR 0xffc0
 852
 853
 854#define __KVM_HAVE_ARCH_WQP
 855#define __KVM_HAVE_CREATE_DEVICE
 856
 857static inline void kvm_arch_hardware_disable(void) {}
 858static inline void kvm_arch_hardware_unsetup(void) {}
 859static inline void kvm_arch_sync_events(struct kvm *kvm) {}
 860static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}
 861static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
 862static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
 863static inline void kvm_arch_exit(void) {}
 864static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
 865static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
 866static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
 867
 868#endif /* __POWERPC_KVM_HOST_H__ */
 869