arch/powerpc/include/asm/kvm_host.h

   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 #include <asm/guest-state-buffer.h>
  29
  30 #define __KVM_HAVE_ARCH_VCPU_DEBUGFS
  31
  32 #define KVM_MAX_VCPUS           NR_CPUS
  33 #define KVM_MAX_VCORES          NR_CPUS
  34
  35 #include <asm/cputhreads.h>
  36
  37 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
  38 #include <asm/kvm_book3s_asm.h>         /* for MAX_SMT_THREADS */
  39 #define KVM_MAX_VCPU_IDS        (MAX_SMT_THREADS * KVM_MAX_VCORES)
  40
  41 /*
  42  * Limit the nested partition table to 4096 entries (because that's what
  43  * hardware supports). Both guest and host use this value.
  44  */
  45 #define KVM_MAX_NESTED_GUESTS_SHIFT     12
  46
  47 #else
  48 #define KVM_MAX_VCPU_IDS        KVM_MAX_VCPUS
  49 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
  50
  51 #define __KVM_HAVE_ARCH_INTC_INITIALIZED
  52
  53 #define KVM_HALT_POLL_NS_DEFAULT 10000  /* 10 us */
  54
  55 /* These values are internal and can be increased later */
  56 #define KVM_NR_IRQCHIPS          1
  57 #define KVM_IRQCHIP_NUM_PINS     256
  58
  59 /* PPC-specific vcpu->requests bit members */
  60 #define KVM_REQ_WATCHDOG        KVM_ARCH_REQ(0)
  61 #define KVM_REQ_EPR_EXIT        KVM_ARCH_REQ(1)
  62 #define KVM_REQ_PENDING_TIMER   KVM_ARCH_REQ(2)
  63
  64 #include <linux/mmu_notifier.h>
  65
  66 #define HPTEG_CACHE_NUM                 (1 << 15)
  67 #define HPTEG_HASH_BITS_PTE             13
  68 #define HPTEG_HASH_BITS_PTE_LONG        12
  69 #define HPTEG_HASH_BITS_VPTE            13
  70 #define HPTEG_HASH_BITS_VPTE_LONG       5
  71 #define HPTEG_HASH_BITS_VPTE_64K        11
  72 #define HPTEG_HASH_NUM_PTE              (1 << HPTEG_HASH_BITS_PTE)
  73 #define HPTEG_HASH_NUM_PTE_LONG         (1 << HPTEG_HASH_BITS_PTE_LONG)
  74 #define HPTEG_HASH_NUM_VPTE             (1 << HPTEG_HASH_BITS_VPTE)
  75 #define HPTEG_HASH_NUM_VPTE_LONG        (1 << HPTEG_HASH_BITS_VPTE_LONG)
  76 #define HPTEG_HASH_NUM_VPTE_64K         (1 << HPTEG_HASH_BITS_VPTE_64K)
  77
  78 /* Physical Address Mask - allowed range of real mode RAM access */
  79 #define KVM_PAM                 0x0fffffffffffffffULL
  80
  81 struct lppaca;
  82 struct slb_shadow;
  83 struct dtl_entry;
  84
  85 struct kvmppc_vcpu_book3s;
  86 struct kvmppc_book3s_shadow_vcpu;
  87 struct kvm_nested_guest;
  88
  89 struct kvm_vm_stat {
  90         struct kvm_vm_stat_generic generic;
  91         u64 num_2M_pages;
  92         u64 num_1G_pages;
  93 };
  94
  95 struct kvm_vcpu_stat {
  96         struct kvm_vcpu_stat_generic generic;
  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_successful_wait;
 113         u64 dbell_exits;
 114         u64 gdbell_exits;
 115         u64 ld;
 116         u64 st;
 117 #ifdef CONFIG_PPC_BOOK3S
 118         u64 pf_storage;
 119         u64 pf_instruc;
 120         u64 sp_storage;
 121         u64 sp_instruc;
 122         u64 queue_intr;
 123         u64 ld_slow;
 124         u64 st_slow;
 125 #endif
 126         u64 pthru_all;
 127         u64 pthru_host;
 128         u64 pthru_bad_aff;
 129 };
 130
 131 enum kvm_exit_types {
 132         MMIO_EXITS,
 133         SIGNAL_EXITS,
 134         ITLB_REAL_MISS_EXITS,
 135         ITLB_VIRT_MISS_EXITS,
 136         DTLB_REAL_MISS_EXITS,
 137         DTLB_VIRT_MISS_EXITS,
 138         SYSCALL_EXITS,
 139         ISI_EXITS,
 140         DSI_EXITS,
 141         EMULATED_INST_EXITS,
 142         EMULATED_MTMSRWE_EXITS,
 143         EMULATED_WRTEE_EXITS,
 144         EMULATED_MTSPR_EXITS,
 145         EMULATED_MFSPR_EXITS,
 146         EMULATED_MTMSR_EXITS,
 147         EMULATED_MFMSR_EXITS,
 148         EMULATED_TLBSX_EXITS,
 149         EMULATED_TLBWE_EXITS,
 150         EMULATED_RFI_EXITS,
 151         EMULATED_RFCI_EXITS,
 152         EMULATED_RFDI_EXITS,
 153         DEC_EXITS,
 154         EXT_INTR_EXITS,
 155         HALT_WAKEUP,
 156         USR_PR_INST,
 157         FP_UNAVAIL,
 158         DEBUG_EXITS,
 159         TIMEINGUEST,
 160         DBELL_EXITS,
 161         GDBELL_EXITS,
 162         __NUMBER_OF_KVM_EXIT_TYPES
 163 };
 164
 165 /* allow access to big endian 32bit upper/lower parts and 64bit var */
 166 struct kvmppc_exit_timing {
 167         union {
 168                 u64 tv64;
 169                 struct {
 170                         u32 tbu, tbl;
 171                 } tv32;
 172         };
 173 };
 174
 175 struct kvmppc_pginfo {
 176         unsigned long pfn;
 177         atomic_t refcnt;
 178 };
 179
 180 struct kvmppc_spapr_tce_iommu_table {
 181         struct rcu_head rcu;
 182         struct list_head next;
 183         struct iommu_table *tbl;
 184         struct kref kref;
 185 };
 186
 187 #define TCES_PER_PAGE   (PAGE_SIZE / sizeof(u64))
 188
 189 struct kvmppc_spapr_tce_table {
 190         struct list_head list;
 191         struct kvm *kvm;
 192         u64 liobn;
 193         struct rcu_head rcu;
 194         u32 page_shift;
 195         u64 offset;             /* in pages */
 196         u64 size;               /* window size in pages */
 197         struct list_head iommu_tables;
 198         struct mutex alloc_lock;
 199         struct page *pages[];
 200 };
 201
 202 /* XICS components, defined in book3s_xics.c */
 203 struct kvmppc_xics;
 204 struct kvmppc_icp;
 205 extern struct kvm_device_ops kvm_xics_ops;
 206
 207 /* XIVE components, defined in book3s_xive.c */
 208 struct kvmppc_xive;
 209 struct kvmppc_xive_vcpu;
 210 extern struct kvm_device_ops kvm_xive_ops;
 211 extern struct kvm_device_ops kvm_xive_native_ops;
 212
 213 struct kvmppc_passthru_irqmap;
 214
 215 /*
 216  * The reverse mapping array has one entry for each HPTE,
 217  * which stores the guest's view of the second word of the HPTE
 218  * (including the guest physical address of the mapping),
 219  * plus forward and backward pointers in a doubly-linked ring
 220  * of HPTEs that map the same host page.  The pointers in this
 221  * ring are 32-bit HPTE indexes, to save space.
 222  */
 223 struct revmap_entry {
 224         unsigned long guest_rpte;
 225         unsigned int forw, back;
 226 };
 227
 228 /*
 229  * The rmap array of size number of guest pages is allocated for each memslot.
 230  * This array is used to store usage specific information about the guest page.
 231  * Below are the encodings of the various possible usage types.
 232  */
 233 /* Free bits which can be used to define a new usage */
 234 #define KVMPPC_RMAP_TYPE_MASK   0xff00000000000000
 235 #define KVMPPC_RMAP_NESTED      0xc000000000000000      /* Nested rmap array */
 236 #define KVMPPC_RMAP_HPT         0x0100000000000000      /* HPT guest */
 237
 238 /*
 239  * rmap usage definition for a hash page table (hpt) guest:
 240  * 0x0000080000000000   Lock bit
 241  * 0x0000018000000000   RC bits
 242  * 0x0000000100000000   Present bit
 243  * 0x00000000ffffffff   HPT index bits
 244  * The bottom 32 bits are the index in the guest HPT of a HPTE that points to
 245  * the page.
 246  */
 247 #define KVMPPC_RMAP_LOCK_BIT    43
 248 #define KVMPPC_RMAP_RC_SHIFT    32
 249 #define KVMPPC_RMAP_REFERENCED  (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
 250 #define KVMPPC_RMAP_PRESENT     0x100000000ul
 251 #define KVMPPC_RMAP_INDEX       0xfffffffful
 252
 253 struct kvm_arch_memory_slot {
 254 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 255         unsigned long *rmap;
 256 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 257 };
 258
 259 struct kvm_hpt_info {
 260         /* Host virtual (linear mapping) address of guest HPT */
 261         unsigned long virt;
 262         /* Array of reverse mapping entries for each guest HPTE */
 263         struct revmap_entry *rev;
 264         /* Guest HPT size is 2**(order) bytes */
 265         u32 order;
 266         /* 1 if HPT allocated with CMA, 0 otherwise */
 267         int cma;
 268 };
 269
 270 struct kvm_resize_hpt;
 271
 272 /* Flag values for kvm_arch.secure_guest */
 273 #define KVMPPC_SECURE_INIT_START 0x1 /* H_SVM_INIT_START has been called */
 274 #define KVMPPC_SECURE_INIT_DONE  0x2 /* H_SVM_INIT_DONE completed */
 275 #define KVMPPC_SECURE_INIT_ABORT 0x4 /* H_SVM_INIT_ABORT issued */
 276
 277 struct kvm_arch {
 278         u64 lpid;
 279         unsigned int smt_mode;          /* # vcpus per virtual core */
 280         unsigned int emul_smt_mode;     /* emualted SMT mode, on P9 */
 281 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 282         unsigned int tlb_sets;
 283         struct kvm_hpt_info hpt;
 284         atomic64_t mmio_update;
 285         unsigned int host_lpid;
 286         unsigned long host_lpcr;
 287         unsigned long sdr1;
 288         unsigned long host_sdr1;
 289         unsigned long lpcr;
 290         unsigned long vrma_slb_v;
 291         int mmu_ready;
 292         atomic_t vcpus_running;
 293         u32 online_vcores;
 294         atomic_t hpte_mod_interest;
 295         cpumask_t need_tlb_flush;
 296         u8 radix;
 297         u8 fwnmi_enabled;
 298         u8 secure_guest;
 299         u8 svm_enabled;
 300         bool nested_enable;
 301         bool dawr1_enabled;
 302         pgd_t *pgtable;
 303         u64 process_table;
 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_xics *xics_device;
 321         struct kvmppc_xive *xive;    /* Current XIVE device in use */
 322         struct {
 323                 struct kvmppc_xive *native;
 324                 struct kvmppc_xive *xics_on_xive;
 325         } xive_devices;
 326         struct kvmppc_passthru_irqmap *pimap;
 327 #endif
 328         struct kvmppc_ops *kvm_ops;
 329 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 330         struct mutex uvmem_lock;
 331         struct list_head uvmem_pfns;
 332         struct mutex mmu_setup_lock;    /* nests inside vcpu mutexes */
 333         u64 l1_ptcr;
 334         struct idr kvm_nested_guest_idr;
 335         /* This array can grow quite large, keep it at the end */
 336         struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
 337 #endif
 338 };
 339
 340 #define VCORE_ENTRY_MAP(vc)     ((vc)->entry_exit_map & 0xff)
 341 #define VCORE_EXIT_MAP(vc)      ((vc)->entry_exit_map >> 8)
 342 #define VCORE_IS_EXITING(vc)    (VCORE_EXIT_MAP(vc) != 0)
 343
 344 /* This bit is used when a vcore exit is triggered from outside the vcore */
 345 #define VCORE_EXIT_REQ          0x10000
 346
 347 /*
 348  * Values for vcore_state.
 349  * Note that these are arranged such that lower values
 350  * (< VCORE_SLEEPING) don't require stolen time accounting
 351  * on load/unload, and higher values do.
 352  */
 353 #define VCORE_INACTIVE  0
 354 #define VCORE_PREEMPT   1
 355 #define VCORE_PIGGYBACK 2
 356 #define VCORE_SLEEPING  3
 357 #define VCORE_RUNNING   4
 358 #define VCORE_EXITING   5
 359 #define VCORE_POLLING   6
 360
 361 /*
 362  * Struct used to manage memory for a virtual processor area
 363  * registered by a PAPR guest.  There are three types of area
 364  * that a guest can register.
 365  */
 366 struct kvmppc_vpa {
 367         unsigned long gpa;      /* Current guest phys addr */
 368         void *pinned_addr;      /* Address in kernel linear mapping */
 369         void *pinned_end;       /* End of region */
 370         unsigned long next_gpa; /* Guest phys addr for update */
 371         unsigned long len;      /* Number of bytes required */
 372         u8 update_pending;      /* 1 => update pinned_addr from next_gpa */
 373         bool dirty;             /* true => area has been modified by kernel */
 374 };
 375
 376 struct kvmppc_pte {
 377         ulong eaddr;
 378         u64 vpage;
 379         ulong raddr;
 380         bool may_read           : 1;
 381         bool may_write          : 1;
 382         bool may_execute        : 1;
 383         unsigned long wimg;
 384         unsigned long rc;
 385         u8 page_size;           /* MMU_PAGE_xxx */
 386         u8 page_shift;
 387 };
 388
 389 struct kvmppc_mmu {
 390         /* book3s_64 only */
 391         void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
 392         u64  (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
 393         u64  (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
 394         int  (*slbfee)(struct kvm_vcpu *vcpu, gva_t eaddr, ulong *ret_slb);
 395         void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
 396         void (*slbia)(struct kvm_vcpu *vcpu);
 397         /* book3s */
 398         void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
 399         u32  (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
 400         int  (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
 401                       struct kvmppc_pte *pte, bool data, bool iswrite);
 402         void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
 403         int  (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
 404         u64  (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
 405         bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
 406 };
 407
 408 struct kvmppc_slb {
 409         u64 esid;
 410         u64 vsid;
 411         u64 orige;
 412         u64 origv;
 413         bool valid      : 1;
 414         bool Ks         : 1;
 415         bool Kp         : 1;
 416         bool nx         : 1;
 417         bool large      : 1;    /* PTEs are 16MB */
 418         bool tb         : 1;    /* 1TB segment */
 419         bool class      : 1;
 420         u8 base_page_size;      /* MMU_PAGE_xxx */
 421 };
 422
 423 /* Struct used to accumulate timing information in HV real mode code */
 424 struct kvmhv_tb_accumulator {
 425         u64     seqcount;       /* used to synchronize access, also count * 2 */
 426         u64     tb_total;       /* total time in timebase ticks */
 427         u64     tb_min;         /* min time */
 428         u64     tb_max;         /* max time */
 429 };
 430
 431 #ifdef CONFIG_PPC_BOOK3S_64
 432 struct kvmppc_irq_map {
 433         u32     r_hwirq;
 434         u32     v_hwirq;
 435         struct irq_desc *desc;
 436 };
 437
 438 #define KVMPPC_PIRQ_MAPPED      1024
 439 struct kvmppc_passthru_irqmap {
 440         int n_mapped;
 441         struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED];
 442 };
 443 #endif
 444
 445 # ifdef CONFIG_PPC_E500
 446 #define KVMPPC_BOOKE_IAC_NUM    2
 447 #define KVMPPC_BOOKE_DAC_NUM    2
 448 # else
 449 #define KVMPPC_BOOKE_IAC_NUM    4
 450 #define KVMPPC_BOOKE_DAC_NUM    2
 451 # endif
 452 #define KVMPPC_BOOKE_MAX_IAC    4
 453 #define KVMPPC_BOOKE_MAX_DAC    2
 454
 455 /* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
 456 #define KVMPPC_EPR_NONE         0 /* EPR not supported */
 457 #define KVMPPC_EPR_USER         1 /* exit to userspace to fill EPR */
 458 #define KVMPPC_EPR_KERNEL       2 /* in-kernel irqchip */
 459
 460 #define KVMPPC_IRQ_DEFAULT      0
 461 #define KVMPPC_IRQ_MPIC         1
 462 #define KVMPPC_IRQ_XICS         2 /* Includes a XIVE option */
 463 #define KVMPPC_IRQ_XIVE         3 /* XIVE native exploitation mode */
 464
 465 #define MMIO_HPTE_CACHE_SIZE    4
 466
 467 struct mmio_hpte_cache_entry {
 468         unsigned long hpte_v;
 469         unsigned long hpte_r;
 470         unsigned long rpte;
 471         unsigned long pte_index;
 472         unsigned long eaddr;
 473         unsigned long slb_v;
 474         long mmio_update;
 475         unsigned int slb_base_pshift;
 476 };
 477
 478 struct mmio_hpte_cache {
 479         struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE];
 480         unsigned int index;
 481 };
 482
 483 #define KVMPPC_VSX_COPY_NONE            0
 484 #define KVMPPC_VSX_COPY_WORD            1
 485 #define KVMPPC_VSX_COPY_DWORD           2
 486 #define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP 3
 487 #define KVMPPC_VSX_COPY_WORD_LOAD_DUMP  4
 488
 489 #define KVMPPC_VMX_COPY_BYTE            8
 490 #define KVMPPC_VMX_COPY_HWORD           9
 491 #define KVMPPC_VMX_COPY_WORD            10
 492 #define KVMPPC_VMX_COPY_DWORD           11
 493
 494 struct openpic;
 495
 496 /* W0 and W1 of a XIVE thread management context */
 497 union xive_tma_w01 {
 498         struct {
 499                 u8      nsr;
 500                 u8      cppr;
 501                 u8      ipb;
 502                 u8      lsmfb;
 503                 u8      ack;
 504                 u8      inc;
 505                 u8      age;
 506                 u8      pipr;
 507         };
 508         __be64 w01;
 509 };
 510
 511  /* Nestedv2 H_GUEST_RUN_VCPU configuration */
 512 struct kvmhv_nestedv2_config {
 513         struct kvmppc_gs_buff_info vcpu_run_output_cfg;
 514         struct kvmppc_gs_buff_info vcpu_run_input_cfg;
 515         u64 vcpu_run_output_size;
 516 };
 517
 518  /* Nestedv2 L1<->L0 communication state */
 519 struct kvmhv_nestedv2_io {
 520         struct kvmhv_nestedv2_config cfg;
 521         struct kvmppc_gs_buff *vcpu_run_output;
 522         struct kvmppc_gs_buff *vcpu_run_input;
 523         struct kvmppc_gs_msg *vcpu_message;
 524         struct kvmppc_gs_msg *vcore_message;
 525         struct kvmppc_gs_bitmap valids;
 526 };
 527
 528 struct kvm_vcpu_arch {
 529         ulong host_stack;
 530         u32 host_pid;
 531 #ifdef CONFIG_PPC_BOOK3S
 532         struct kvmppc_slb slb[64];
 533         int slb_max;            /* 1 + index of last valid entry in slb[] */
 534         int slb_nr;             /* total number of entries in SLB */
 535         struct kvmppc_mmu mmu;
 536         struct kvmppc_vcpu_book3s *book3s;
 537 #endif
 538 #ifdef CONFIG_PPC_BOOK3S_32
 539         struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
 540 #endif
 541
 542         /*
 543          * This is passed along to the HV via H_ENTER_NESTED. Align to
 544          * prevent it crossing a real 4K page.
 545          */
 546         struct pt_regs regs __aligned(512);
 547
 548         struct thread_fp_state fp;
 549
 550 #ifdef CONFIG_SPE
 551         ulong evr[32];
 552         ulong spefscr;
 553         ulong host_spefscr;
 554         u64 acc;
 555 #endif
 556 #ifdef CONFIG_ALTIVEC
 557         struct thread_vr_state vr;
 558 #endif
 559
 560 #ifdef CONFIG_KVM_BOOKE_HV
 561         u32 host_mas4;
 562         u32 host_mas6;
 563         u32 shadow_epcr;
 564         u32 shadow_msrp;
 565         u32 eplc;
 566         u32 epsc;
 567         u32 oldpir;
 568 #endif
 569
 570 #if defined(CONFIG_BOOKE)
 571 #if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
 572         u32 epcr;
 573 #endif
 574 #endif
 575
 576 #ifdef CONFIG_PPC_BOOK3S
 577         /* For Gekko paired singles */
 578         u32 qpr[32];
 579 #endif
 580
 581 #ifdef CONFIG_PPC_BOOK3S
 582         ulong tar;
 583 #endif
 584
 585 #ifdef CONFIG_PPC_BOOK3S
 586         ulong hflags;
 587         ulong guest_owned_ext;
 588         ulong purr;
 589         ulong spurr;
 590         ulong ic;
 591         ulong dscr;
 592         ulong amr;
 593         ulong uamor;
 594         ulong iamr;
 595         u32 ctrl;
 596         u32 dabrx;
 597         ulong dabr;
 598         ulong dawr0;
 599         ulong dawrx0;
 600         ulong dawr1;
 601         ulong dawrx1;
 602         ulong dexcr;
 603         ulong hashkeyr;
 604         ulong hashpkeyr;
 605         ulong ciabr;
 606         ulong cfar;
 607         ulong ppr;
 608         u32 pspb;
 609         u8 load_ebb;
 610 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 611         u8 load_tm;
 612 #endif
 613         ulong fscr;
 614         ulong shadow_fscr;
 615         ulong ebbhr;
 616         ulong ebbrr;
 617         ulong bescr;
 618         ulong csigr;
 619         ulong tacr;
 620         ulong tcscr;
 621         ulong acop;
 622         ulong wort;
 623         ulong tid;
 624         ulong psscr;
 625         ulong hfscr;
 626         ulong shadow_srr1;
 627 #endif
 628         u32 vrsave; /* also USPRG0 */
 629         u32 mmucr;
 630         /* shadow_msr is unused for BookE HV */
 631         ulong shadow_msr;
 632         ulong csrr0;
 633         ulong csrr1;
 634         ulong dsrr0;
 635         ulong dsrr1;
 636         ulong mcsrr0;
 637         ulong mcsrr1;
 638         ulong mcsr;
 639         ulong dec;
 640 #ifdef CONFIG_BOOKE
 641         u32 decar;
 642 #endif
 643         /* Time base value when we entered the guest */
 644         u64 entry_tb;
 645         u64 entry_vtb;
 646         u64 entry_ic;
 647         u32 tcr;
 648         ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
 649         u32 ivor[64];
 650         ulong ivpr;
 651         u32 pvr;
 652
 653         u32 shadow_pid;
 654         u32 shadow_pid1;
 655         u32 pid;
 656         u32 swap_pid;
 657
 658         u32 ccr0;
 659         u32 ccr1;
 660         u32 dbsr;
 661
 662         u64 mmcr[4];    /* MMCR0, MMCR1, MMCR2, MMCR3 */
 663         u64 mmcra;
 664         u64 mmcrs;
 665         u32 pmc[8];
 666         u32 spmc[2];
 667         u64 siar;
 668         u64 sdar;
 669         u64 sier[3];
 670 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 671         u64 tfhar;
 672         u64 texasr;
 673         u64 tfiar;
 674         u64 orig_texasr;
 675
 676         u32 cr_tm;
 677         u64 xer_tm;
 678         u64 lr_tm;
 679         u64 ctr_tm;
 680         u64 amr_tm;
 681         u64 ppr_tm;
 682         u64 dscr_tm;
 683         u64 tar_tm;
 684
 685         ulong gpr_tm[32];
 686
 687         struct thread_fp_state fp_tm;
 688
 689         struct thread_vr_state vr_tm;
 690         u32 vrsave_tm; /* also USPRG0 */
 691 #endif
 692
 693 #ifdef CONFIG_KVM_EXIT_TIMING
 694         struct mutex exit_timing_lock;
 695         struct kvmppc_exit_timing timing_exit;
 696         struct kvmppc_exit_timing timing_last_enter;
 697         u32 last_exit_type;
 698         u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
 699         u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 700         u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 701         u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 702         u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 703         u64 timing_last_exit;
 704 #endif
 705
 706 #ifdef CONFIG_PPC_BOOK3S
 707         ulong fault_dar;
 708         u32 fault_dsisr;
 709         unsigned long intr_msr;
 710         /*
 711          * POWER9 and later: fault_gpa contains the guest real address of page
 712          * fault for a radix guest, or segment descriptor (equivalent to result
 713          * from slbmfev of SLB entry that translated the EA) for hash guests.
 714          */
 715         ulong fault_gpa;
 716 #endif
 717
 718 #ifdef CONFIG_BOOKE
 719         ulong fault_dear;
 720         ulong fault_esr;
 721         ulong queued_dear;
 722         ulong queued_esr;
 723         spinlock_t wdt_lock;
 724         struct timer_list wdt_timer;
 725         u32 tlbcfg[4];
 726         u32 tlbps[4];
 727         u32 mmucfg;
 728         u32 eptcfg;
 729         u32 epr;
 730         u64 sprg9;
 731         u32 pwrmgtcr0;
 732         u32 crit_save;
 733         /* guest debug registers*/
 734         struct debug_reg dbg_reg;
 735 #endif
 736         gpa_t paddr_accessed;
 737         gva_t vaddr_accessed;
 738         pgd_t *pgdir;
 739
 740         u16 io_gpr; /* GPR used as IO source/target */
 741         u8 mmio_host_swabbed;
 742         u8 mmio_sign_extend;
 743         /* conversion between single and double precision */
 744         u8 mmio_sp64_extend;
 745         /*
 746          * Number of simulations for vsx.
 747          * If we use 2*8bytes to simulate 1*16bytes,
 748          * then the number should be 2 and
 749          * mmio_copy_type=KVMPPC_VSX_COPY_DWORD.
 750          * If we use 4*4bytes to simulate 1*16bytes,
 751          * the number should be 4 and
 752          * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD.
 753          */
 754         u8 mmio_vsx_copy_nums;
 755         u8 mmio_vsx_offset;
 756         u8 mmio_vmx_copy_nums;
 757         u8 mmio_vmx_offset;
 758         u8 mmio_copy_type;
 759         u8 osi_needed;
 760         u8 osi_enabled;
 761         u8 papr_enabled;
 762         u8 watchdog_enabled;
 763         u8 sane;
 764         u8 cpu_type;
 765         u8 hcall_needed;
 766         u8 epr_flags; /* KVMPPC_EPR_xxx */
 767         u8 epr_needed;
 768         u8 external_oneshot;    /* clear external irq after delivery */
 769
 770         u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
 771
 772         struct hrtimer dec_timer;
 773         u64 dec_jiffies;
 774         u64 dec_expires;        /* Relative to guest timebase. */
 775         unsigned long pending_exceptions;
 776         u8 ceded;
 777         u8 prodded;
 778         u8 doorbell_request;
 779         u8 irq_pending; /* Used by XIVE to signal pending guest irqs */
 780         unsigned long last_inst;
 781
 782         struct rcuwait wait;
 783         struct rcuwait *waitp;
 784         struct kvmppc_vcore *vcore;
 785         int ret;
 786         int trap;
 787         int state;
 788         int ptid;
 789         int thread_cpu;
 790         int prev_cpu;
 791         bool timer_running;
 792         wait_queue_head_t cpu_run;
 793         struct machine_check_event mce_evt; /* Valid if trap == 0x200 */
 794
 795         struct kvm_vcpu_arch_shared *shared;
 796 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
 797         bool shared_big_endian;
 798 #endif
 799         unsigned long magic_page_pa; /* phys addr to map the magic page to */
 800         unsigned long magic_page_ea; /* effect. addr to map the magic page to */
 801         bool disable_kernel_nx;
 802
 803         int irq_type;           /* one of KVM_IRQ_* */
 804         int irq_cpu_id;
 805         struct openpic *mpic;   /* KVM_IRQ_MPIC */
 806 #ifdef CONFIG_KVM_XICS
 807         struct kvmppc_icp *icp; /* XICS presentation controller */
 808         struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */
 809         __be32 xive_cam_word;    /* Cooked W2 in proper endian with valid bit */
 810         u8 xive_pushed;          /* Is the VP pushed on the physical CPU ? */
 811         u8 xive_esc_on;          /* Is the escalation irq enabled ? */
 812         union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */
 813         u64 xive_esc_raddr;      /* Escalation interrupt ESB real addr */
 814         u64 xive_esc_vaddr;      /* Escalation interrupt ESB virt addr */
 815 #endif
 816
 817 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 818         struct kvm_vcpu_arch_shared shregs;
 819
 820         struct mmio_hpte_cache mmio_cache;
 821         unsigned long pgfault_addr;
 822         long pgfault_index;
 823         unsigned long pgfault_hpte[2];
 824         struct mmio_hpte_cache_entry *pgfault_cache;
 825
 826         struct task_struct *run_task;
 827
 828         spinlock_t vpa_update_lock;
 829         struct kvmppc_vpa vpa;
 830         struct kvmppc_vpa dtl;
 831         struct dtl_entry *dtl_ptr;
 832         unsigned long dtl_index;
 833         u64 stolen_logged;
 834         struct kvmppc_vpa slb_shadow;
 835
 836         spinlock_t tbacct_lock;
 837         u64 busy_stolen;
 838         u64 busy_preempt;
 839
 840         u64 emul_inst;
 841
 842         u32 online;
 843
 844         u64 hfscr_permitted;    /* A mask of permitted HFSCR facilities */
 845
 846         /* For support of nested guests */
 847         struct kvm_nested_guest *nested;
 848         u64 nested_hfscr;       /* HFSCR that the L1 requested for the nested guest */
 849         u32 nested_vcpu_id;
 850         gpa_t nested_io_gpr;
 851         /* For nested APIv2 guests*/
 852         struct kvmhv_nestedv2_io nestedv2_io;
 853 #endif
 854
 855 #ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
 856         struct kvmhv_tb_accumulator *cur_activity;      /* What we're timing */
 857         u64     cur_tb_start;                   /* when it started */
 858 #ifdef CONFIG_KVM_BOOK3S_HV_P9_TIMING
 859         struct kvmhv_tb_accumulator vcpu_entry;
 860         struct kvmhv_tb_accumulator vcpu_exit;
 861         struct kvmhv_tb_accumulator in_guest;
 862         struct kvmhv_tb_accumulator hcall;
 863         struct kvmhv_tb_accumulator pg_fault;
 864         struct kvmhv_tb_accumulator guest_entry;
 865         struct kvmhv_tb_accumulator guest_exit;
 866 #else
 867         struct kvmhv_tb_accumulator rm_entry;   /* real-mode entry code */
 868         struct kvmhv_tb_accumulator rm_intr;    /* real-mode intr handling */
 869         struct kvmhv_tb_accumulator rm_exit;    /* real-mode exit code */
 870         struct kvmhv_tb_accumulator guest_time; /* guest execution */
 871         struct kvmhv_tb_accumulator cede_time;  /* time napping inside guest */
 872 #endif
 873 #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
 874 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 875         u64 l1_to_l2_cs;
 876         u64 l2_to_l1_cs;
 877         u64 l2_runtime_agg;
 878 #endif
 879 };
 880
 881 #define VCPU_FPR(vcpu, i)       (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
 882 #define VCPU_VSX_FPR(vcpu, i, j)        ((vcpu)->arch.fp.fpr[i][j])
 883 #define VCPU_VSX_VR(vcpu, i)            ((vcpu)->arch.vr.vr[i])
 884
 885 /* Values for vcpu->arch.state */
 886 #define KVMPPC_VCPU_NOTREADY            0
 887 #define KVMPPC_VCPU_RUNNABLE            1
 888 #define KVMPPC_VCPU_BUSY_IN_HOST        2
 889
 890 /* Values for vcpu->arch.io_gpr */
 891 #define KVM_MMIO_REG_MASK       0x003f
 892 #define KVM_MMIO_REG_EXT_MASK   0xffc0
 893 #define KVM_MMIO_REG_GPR        0x0000
 894 #define KVM_MMIO_REG_FPR        0x0040
 895 #define KVM_MMIO_REG_QPR        0x0080
 896 #define KVM_MMIO_REG_FQPR       0x00c0
 897 #define KVM_MMIO_REG_VSX        0x0100
 898 #define KVM_MMIO_REG_VMX        0x0180
 899 #define KVM_MMIO_REG_NESTED_GPR 0xffc0
 900
 901
 902 #define __KVM_HAVE_ARCH_WQP
 903 #define __KVM_HAVE_CREATE_DEVICE
 904
 905 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
 906 static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}
 907 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
 908 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
 909 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
 910
 911 #endif /* __POWERPC_KVM_HOST_H__ */