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
  29 #define KVM_MAX_VCPUS           NR_CPUS
  30 #define KVM_MAX_VCORES          NR_CPUS
  31 #define KVM_USER_MEM_SLOTS      512
  32
  33 #include <asm/cputhreads.h>
  34
  35 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
  36 #include <asm/kvm_book3s_asm.h>         /* for MAX_SMT_THREADS */
  37 #define KVM_MAX_VCPU_ID         (MAX_SMT_THREADS * KVM_MAX_VCORES)
  38 #define KVM_MAX_NESTED_GUESTS   KVMPPC_NR_LPIDS
  39
  40 #else
  41 #define KVM_MAX_VCPU_ID         KVM_MAX_VCPUS
  42 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
  43
  44 #define __KVM_HAVE_ARCH_INTC_INITIALIZED
  45
  46 #define KVM_HALT_POLL_NS_DEFAULT 10000  /* 10 us */
  47
  48 /* These values are internal and can be increased later */
  49 #define KVM_NR_IRQCHIPS          1
  50 #define KVM_IRQCHIP_NUM_PINS     256
  51
  52 /* PPC-specific vcpu->requests bit members */
  53 #define KVM_REQ_WATCHDOG        KVM_ARCH_REQ(0)
  54 #define KVM_REQ_EPR_EXIT        KVM_ARCH_REQ(1)
  55
  56 #include <linux/mmu_notifier.h>
  57
  58 #define KVM_ARCH_WANT_MMU_NOTIFIER
  59
  60 extern int kvm_unmap_hva_range(struct kvm *kvm,
  61                                unsigned long start, unsigned long end);
  62 extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
  63 extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
  64 extern int kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
  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         ulong remote_tlb_flush;
  91         ulong num_2M_pages;
  92         ulong num_1G_pages;
  93 };
  94
  95 struct kvm_vcpu_stat {
  96         u64 sum_exits;
  97         u64 mmio_exits;
  98         u64 signal_exits;
  99         u64 light_exits;
 100         /* Account for special types of light exits: */
 101         u64 itlb_real_miss_exits;
 102         u64 itlb_virt_miss_exits;
 103         u64 dtlb_real_miss_exits;
 104         u64 dtlb_virt_miss_exits;
 105         u64 syscall_exits;
 106         u64 isi_exits;
 107         u64 dsi_exits;
 108         u64 emulated_inst_exits;
 109         u64 dec_exits;
 110         u64 ext_intr_exits;
 111         u64 halt_poll_success_ns;
 112         u64 halt_poll_fail_ns;
 113         u64 halt_wait_ns;
 114         u64 halt_successful_poll;
 115         u64 halt_attempted_poll;
 116         u64 halt_successful_wait;
 117         u64 halt_poll_invalid;
 118         u64 halt_wakeup;
 119         u64 dbell_exits;
 120         u64 gdbell_exits;
 121         u64 ld;
 122         u64 st;
 123 #ifdef CONFIG_PPC_BOOK3S
 124         u64 pf_storage;
 125         u64 pf_instruc;
 126         u64 sp_storage;
 127         u64 sp_instruc;
 128         u64 queue_intr;
 129         u64 ld_slow;
 130         u64 st_slow;
 131 #endif
 132         u64 pthru_all;
 133         u64 pthru_host;
 134         u64 pthru_bad_aff;
 135 };
 136
 137 enum kvm_exit_types {
 138         MMIO_EXITS,
 139         SIGNAL_EXITS,
 140         ITLB_REAL_MISS_EXITS,
 141         ITLB_VIRT_MISS_EXITS,
 142         DTLB_REAL_MISS_EXITS,
 143         DTLB_VIRT_MISS_EXITS,
 144         SYSCALL_EXITS,
 145         ISI_EXITS,
 146         DSI_EXITS,
 147         EMULATED_INST_EXITS,
 148         EMULATED_MTMSRWE_EXITS,
 149         EMULATED_WRTEE_EXITS,
 150         EMULATED_MTSPR_EXITS,
 151         EMULATED_MFSPR_EXITS,
 152         EMULATED_MTMSR_EXITS,
 153         EMULATED_MFMSR_EXITS,
 154         EMULATED_TLBSX_EXITS,
 155         EMULATED_TLBWE_EXITS,
 156         EMULATED_RFI_EXITS,
 157         EMULATED_RFCI_EXITS,
 158         EMULATED_RFDI_EXITS,
 159         DEC_EXITS,
 160         EXT_INTR_EXITS,
 161         HALT_WAKEUP,
 162         USR_PR_INST,
 163         FP_UNAVAIL,
 164         DEBUG_EXITS,
 165         TIMEINGUEST,
 166         DBELL_EXITS,
 167         GDBELL_EXITS,
 168         __NUMBER_OF_KVM_EXIT_TYPES
 169 };
 170
 171 /* allow access to big endian 32bit upper/lower parts and 64bit var */
 172 struct kvmppc_exit_timing {
 173         union {
 174                 u64 tv64;
 175                 struct {
 176                         u32 tbu, tbl;
 177                 } tv32;
 178         };
 179 };
 180
 181 struct kvmppc_pginfo {
 182         unsigned long pfn;
 183         atomic_t refcnt;
 184 };
 185
 186 struct kvmppc_spapr_tce_iommu_table {
 187         struct rcu_head rcu;
 188         struct list_head next;
 189         struct iommu_table *tbl;
 190         struct kref kref;
 191 };
 192
 193 #define TCES_PER_PAGE   (PAGE_SIZE / sizeof(u64))
 194
 195 struct kvmppc_spapr_tce_table {
 196         struct list_head list;
 197         struct kvm *kvm;
 198         u64 liobn;
 199         struct rcu_head rcu;
 200         u32 page_shift;
 201         u64 offset;             /* in pages */
 202         u64 size;               /* window size in pages */
 203         struct list_head iommu_tables;
 204         struct mutex alloc_lock;
 205         struct page *pages[0];
 206 };
 207
 208 /* XICS components, defined in book3s_xics.c */
 209 struct kvmppc_xics;
 210 struct kvmppc_icp;
 211 extern struct kvm_device_ops kvm_xics_ops;
 212
 213 /* XIVE components, defined in book3s_xive.c */
 214 struct kvmppc_xive;
 215 struct kvmppc_xive_vcpu;
 216 extern struct kvm_device_ops kvm_xive_ops;
 217 extern struct kvm_device_ops kvm_xive_native_ops;
 218
 219 struct kvmppc_passthru_irqmap;
 220
 221 /*
 222  * The reverse mapping array has one entry for each HPTE,
 223  * which stores the guest's view of the second word of the HPTE
 224  * (including the guest physical address of the mapping),
 225  * plus forward and backward pointers in a doubly-linked ring
 226  * of HPTEs that map the same host page.  The pointers in this
 227  * ring are 32-bit HPTE indexes, to save space.
 228  */
 229 struct revmap_entry {
 230         unsigned long guest_rpte;
 231         unsigned int forw, back;
 232 };
 233
 234 /*
 235  * The rmap array of size number of guest pages is allocated for each memslot.
 236  * This array is used to store usage specific information about the guest page.
 237  * Below are the encodings of the various possible usage types.
 238  */
 239 /* Free bits which can be used to define a new usage */
 240 #define KVMPPC_RMAP_TYPE_MASK   0xff00000000000000
 241 #define KVMPPC_RMAP_NESTED      0xc000000000000000      /* Nested rmap array */
 242 #define KVMPPC_RMAP_HPT         0x0100000000000000      /* HPT guest */
 243
 244 /*
 245  * rmap usage definition for a hash page table (hpt) guest:
 246  * 0x0000080000000000   Lock bit
 247  * 0x0000018000000000   RC bits
 248  * 0x0000000100000000   Present bit
 249  * 0x00000000ffffffff   HPT index bits
 250  * The bottom 32 bits are the index in the guest HPT of a HPTE that points to
 251  * the page.
 252  */
 253 #define KVMPPC_RMAP_LOCK_BIT    43
 254 #define KVMPPC_RMAP_RC_SHIFT    32
 255 #define KVMPPC_RMAP_REFERENCED  (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
 256 #define KVMPPC_RMAP_PRESENT     0x100000000ul
 257 #define KVMPPC_RMAP_INDEX       0xfffffffful
 258
 259 struct kvm_arch_memory_slot {
 260 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 261         unsigned long *rmap;
 262 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 263 };
 264
 265 struct kvm_hpt_info {
 266         /* Host virtual (linear mapping) address of guest HPT */
 267         unsigned long virt;
 268         /* Array of reverse mapping entries for each guest HPTE */
 269         struct revmap_entry *rev;
 270         /* Guest HPT size is 2**(order) bytes */
 271         u32 order;
 272         /* 1 if HPT allocated with CMA, 0 otherwise */
 273         int cma;
 274 };
 275
 276 struct kvm_resize_hpt;
 277
 278 /* Flag values for kvm_arch.secure_guest */
 279 #define KVMPPC_SECURE_INIT_START 0x1 /* H_SVM_INIT_START has been called */
 280 #define KVMPPC_SECURE_INIT_DONE  0x2 /* H_SVM_INIT_DONE completed */
 281 #define KVMPPC_SECURE_INIT_ABORT 0x4 /* H_SVM_INIT_ABORT issued */
 282
 283 struct kvm_arch {
 284         unsigned int lpid;
 285         unsigned int smt_mode;          /* # vcpus per virtual core */
 286         unsigned int emul_smt_mode;     /* emualted SMT mode, on P9 */
 287 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 288         unsigned int tlb_sets;
 289         struct kvm_hpt_info hpt;
 290         atomic64_t mmio_update;
 291         unsigned int host_lpid;
 292         unsigned long host_lpcr;
 293         unsigned long sdr1;
 294         unsigned long host_sdr1;
 295         unsigned long lpcr;
 296         unsigned long vrma_slb_v;
 297         int mmu_ready;
 298         atomic_t vcpus_running;
 299         u32 online_vcores;
 300         atomic_t hpte_mod_interest;
 301         cpumask_t need_tlb_flush;
 302         cpumask_t cpu_in_guest;
 303         u8 radix;
 304         u8 fwnmi_enabled;
 305         u8 secure_guest;
 306         bool threads_indep;
 307         bool nested_enable;
 308         pgd_t *pgtable;
 309         u64 process_table;
 310         struct dentry *debugfs_dir;
 311         struct dentry *htab_dentry;
 312         struct dentry *radix_dentry;
 313         struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */
 314 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 315 #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 316         struct mutex hpt_mutex;
 317 #endif
 318 #ifdef CONFIG_PPC_BOOK3S_64
 319         struct list_head spapr_tce_tables;
 320         struct list_head rtas_tokens;
 321         struct mutex rtas_token_lock;
 322         DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
 323 #endif
 324 #ifdef CONFIG_KVM_MPIC
 325         struct openpic *mpic;
 326 #endif
 327 #ifdef CONFIG_KVM_XICS
 328         struct kvmppc_xics *xics;
 329         struct kvmppc_xive *xive;    /* Current XIVE device in use */
 330         struct {
 331                 struct kvmppc_xive *native;
 332                 struct kvmppc_xive *xics_on_xive;
 333         } xive_devices;
 334         struct kvmppc_passthru_irqmap *pimap;
 335 #endif
 336         struct kvmppc_ops *kvm_ops;
 337 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 338         struct mutex uvmem_lock;
 339         struct list_head uvmem_pfns;
 340         struct mutex mmu_setup_lock;    /* nests inside vcpu mutexes */
 341         u64 l1_ptcr;
 342         int max_nested_lpid;
 343         struct kvm_nested_guest *nested_guests[KVM_MAX_NESTED_GUESTS];
 344         /* This array can grow quite large, keep it at the end */
 345         struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
 346 #endif
 347 };
 348
 349 #define VCORE_ENTRY_MAP(vc)     ((vc)->entry_exit_map & 0xff)
 350 #define VCORE_EXIT_MAP(vc)      ((vc)->entry_exit_map >> 8)
 351 #define VCORE_IS_EXITING(vc)    (VCORE_EXIT_MAP(vc) != 0)
 352
 353 /* This bit is used when a vcore exit is triggered from outside the vcore */
 354 #define VCORE_EXIT_REQ          0x10000
 355
 356 /*
 357  * Values for vcore_state.
 358  * Note that these are arranged such that lower values
 359  * (< VCORE_SLEEPING) don't require stolen time accounting
 360  * on load/unload, and higher values do.
 361  */
 362 #define VCORE_INACTIVE  0
 363 #define VCORE_PREEMPT   1
 364 #define VCORE_PIGGYBACK 2
 365 #define VCORE_SLEEPING  3
 366 #define VCORE_RUNNING   4
 367 #define VCORE_EXITING   5
 368 #define VCORE_POLLING   6
 369
 370 /*
 371  * Struct used to manage memory for a virtual processor area
 372  * registered by a PAPR guest.  There are three types of area
 373  * that a guest can register.
 374  */
 375 struct kvmppc_vpa {
 376         unsigned long gpa;      /* Current guest phys addr */
 377         void *pinned_addr;      /* Address in kernel linear mapping */
 378         void *pinned_end;       /* End of region */
 379         unsigned long next_gpa; /* Guest phys addr for update */
 380         unsigned long len;      /* Number of bytes required */
 381         u8 update_pending;      /* 1 => update pinned_addr from next_gpa */
 382         bool dirty;             /* true => area has been modified by kernel */
 383 };
 384
 385 struct kvmppc_pte {
 386         ulong eaddr;
 387         u64 vpage;
 388         ulong raddr;
 389         bool may_read           : 1;
 390         bool may_write          : 1;
 391         bool may_execute        : 1;
 392         unsigned long wimg;
 393         unsigned long rc;
 394         u8 page_size;           /* MMU_PAGE_xxx */
 395         u8 page_shift;
 396 };
 397
 398 struct kvmppc_mmu {
 399         /* book3s_64 only */
 400         void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
 401         u64  (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
 402         u64  (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
 403         int  (*slbfee)(struct kvm_vcpu *vcpu, gva_t eaddr, ulong *ret_slb);
 404         void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
 405         void (*slbia)(struct kvm_vcpu *vcpu);
 406         /* book3s */
 407         void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
 408         u32  (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
 409         int  (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
 410                       struct kvmppc_pte *pte, bool data, bool iswrite);
 411         void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
 412         int  (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
 413         u64  (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
 414         bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
 415 };
 416
 417 struct kvmppc_slb {
 418         u64 esid;
 419         u64 vsid;
 420         u64 orige;
 421         u64 origv;
 422         bool valid      : 1;
 423         bool Ks         : 1;
 424         bool Kp         : 1;
 425         bool nx         : 1;
 426         bool large      : 1;    /* PTEs are 16MB */
 427         bool tb         : 1;    /* 1TB segment */
 428         bool class      : 1;
 429         u8 base_page_size;      /* MMU_PAGE_xxx */
 430 };
 431
 432 /* Struct used to accumulate timing information in HV real mode code */
 433 struct kvmhv_tb_accumulator {
 434         u64     seqcount;       /* used to synchronize access, also count * 2 */
 435         u64     tb_total;       /* total time in timebase ticks */
 436         u64     tb_min;         /* min time */
 437         u64     tb_max;         /* max time */
 438 };
 439
 440 #ifdef CONFIG_PPC_BOOK3S_64
 441 struct kvmppc_irq_map {
 442         u32     r_hwirq;
 443         u32     v_hwirq;
 444         struct irq_desc *desc;
 445 };
 446
 447 #define KVMPPC_PIRQ_MAPPED      1024
 448 struct kvmppc_passthru_irqmap {
 449         int n_mapped;
 450         struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED];
 451 };
 452 #endif
 453
 454 # ifdef CONFIG_PPC_FSL_BOOK3E
 455 #define KVMPPC_BOOKE_IAC_NUM    2
 456 #define KVMPPC_BOOKE_DAC_NUM    2
 457 # else
 458 #define KVMPPC_BOOKE_IAC_NUM    4
 459 #define KVMPPC_BOOKE_DAC_NUM    2
 460 # endif
 461 #define KVMPPC_BOOKE_MAX_IAC    4
 462 #define KVMPPC_BOOKE_MAX_DAC    2
 463
 464 /* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
 465 #define KVMPPC_EPR_NONE         0 /* EPR not supported */
 466 #define KVMPPC_EPR_USER         1 /* exit to userspace to fill EPR */
 467 #define KVMPPC_EPR_KERNEL       2 /* in-kernel irqchip */
 468
 469 #define KVMPPC_IRQ_DEFAULT      0
 470 #define KVMPPC_IRQ_MPIC         1
 471 #define KVMPPC_IRQ_XICS         2 /* Includes a XIVE option */
 472 #define KVMPPC_IRQ_XIVE         3 /* XIVE native exploitation mode */
 473
 474 #define MMIO_HPTE_CACHE_SIZE    4
 475
 476 struct mmio_hpte_cache_entry {
 477         unsigned long hpte_v;
 478         unsigned long hpte_r;
 479         unsigned long rpte;
 480         unsigned long pte_index;
 481         unsigned long eaddr;
 482         unsigned long slb_v;
 483         long mmio_update;
 484         unsigned int slb_base_pshift;
 485 };
 486
 487 struct mmio_hpte_cache {
 488         struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE];
 489         unsigned int index;
 490 };
 491
 492 #define KVMPPC_VSX_COPY_NONE            0
 493 #define KVMPPC_VSX_COPY_WORD            1
 494 #define KVMPPC_VSX_COPY_DWORD           2
 495 #define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP 3
 496 #define KVMPPC_VSX_COPY_WORD_LOAD_DUMP  4
 497
 498 #define KVMPPC_VMX_COPY_BYTE            8
 499 #define KVMPPC_VMX_COPY_HWORD           9
 500 #define KVMPPC_VMX_COPY_WORD            10
 501 #define KVMPPC_VMX_COPY_DWORD           11
 502
 503 struct openpic;
 504
 505 /* W0 and W1 of a XIVE thread management context */
 506 union xive_tma_w01 {
 507         struct {
 508                 u8      nsr;
 509                 u8      cppr;
 510                 u8      ipb;
 511                 u8      lsmfb;
 512                 u8      ack;
 513                 u8      inc;
 514                 u8      age;
 515                 u8      pipr;
 516         };
 517         __be64 w01;
 518 };
 519
 520 struct kvm_vcpu_arch {
 521         ulong host_stack;
 522         u32 host_pid;
 523 #ifdef CONFIG_PPC_BOOK3S
 524         struct kvmppc_slb slb[64];
 525         int slb_max;            /* 1 + index of last valid entry in slb[] */
 526         int slb_nr;             /* total number of entries in SLB */
 527         struct kvmppc_mmu mmu;
 528         struct kvmppc_vcpu_book3s *book3s;
 529 #endif
 530 #ifdef CONFIG_PPC_BOOK3S_32
 531         struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
 532 #endif
 533
 534         struct pt_regs regs;
 535
 536         struct thread_fp_state fp;
 537
 538 #ifdef CONFIG_SPE
 539         ulong evr[32];
 540         ulong spefscr;
 541         ulong host_spefscr;
 542         u64 acc;
 543 #endif
 544 #ifdef CONFIG_ALTIVEC
 545         struct thread_vr_state vr;
 546 #endif
 547
 548 #ifdef CONFIG_KVM_BOOKE_HV
 549         u32 host_mas4;
 550         u32 host_mas6;
 551         u32 shadow_epcr;
 552         u32 shadow_msrp;
 553         u32 eplc;
 554         u32 epsc;
 555         u32 oldpir;
 556 #endif
 557
 558 #if defined(CONFIG_BOOKE)
 559 #if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
 560         u32 epcr;
 561 #endif
 562 #endif
 563
 564 #ifdef CONFIG_PPC_BOOK3S
 565         /* For Gekko paired singles */
 566         u32 qpr[32];
 567 #endif
 568
 569 #ifdef CONFIG_PPC_BOOK3S
 570         ulong tar;
 571 #endif
 572
 573 #ifdef CONFIG_PPC_BOOK3S
 574         ulong hflags;
 575         ulong guest_owned_ext;
 576         ulong purr;
 577         ulong spurr;
 578         ulong ic;
 579         ulong dscr;
 580         ulong amr;
 581         ulong uamor;
 582         ulong iamr;
 583         u32 ctrl;
 584         u32 dabrx;
 585         ulong dabr;
 586         ulong dawr;
 587         ulong dawrx;
 588         ulong ciabr;
 589         ulong cfar;
 590         ulong ppr;
 591         u32 pspb;
 592         ulong fscr;
 593         ulong shadow_fscr;
 594         ulong ebbhr;
 595         ulong ebbrr;
 596         ulong bescr;
 597         ulong csigr;
 598         ulong tacr;
 599         ulong tcscr;
 600         ulong acop;
 601         ulong wort;
 602         ulong tid;
 603         ulong psscr;
 604         ulong hfscr;
 605         ulong shadow_srr1;
 606 #endif
 607         u32 vrsave; /* also USPRG0 */
 608         u32 mmucr;
 609         /* shadow_msr is unused for BookE HV */
 610         ulong shadow_msr;
 611         ulong csrr0;
 612         ulong csrr1;
 613         ulong dsrr0;
 614         ulong dsrr1;
 615         ulong mcsrr0;
 616         ulong mcsrr1;
 617         ulong mcsr;
 618         ulong dec;
 619 #ifdef CONFIG_BOOKE
 620         u32 decar;
 621 #endif
 622         /* Time base value when we entered the guest */
 623         u64 entry_tb;
 624         u64 entry_vtb;
 625         u64 entry_ic;
 626         u32 tcr;
 627         ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
 628         u32 ivor[64];
 629         ulong ivpr;
 630         u32 pvr;
 631
 632         u32 shadow_pid;
 633         u32 shadow_pid1;
 634         u32 pid;
 635         u32 swap_pid;
 636
 637         u32 ccr0;
 638         u32 ccr1;
 639         u32 dbsr;
 640
 641         u64 mmcr[5];
 642         u32 pmc[8];
 643         u32 spmc[2];
 644         u64 siar;
 645         u64 sdar;
 646         u64 sier;
 647 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 648         u64 tfhar;
 649         u64 texasr;
 650         u64 tfiar;
 651         u64 orig_texasr;
 652
 653         u32 cr_tm;
 654         u64 xer_tm;
 655         u64 lr_tm;
 656         u64 ctr_tm;
 657         u64 amr_tm;
 658         u64 ppr_tm;
 659         u64 dscr_tm;
 660         u64 tar_tm;
 661
 662         ulong gpr_tm[32];
 663
 664         struct thread_fp_state fp_tm;
 665
 666         struct thread_vr_state vr_tm;
 667         u32 vrsave_tm; /* also USPRG0 */
 668 #endif
 669
 670 #ifdef CONFIG_KVM_EXIT_TIMING
 671         struct mutex exit_timing_lock;
 672         struct kvmppc_exit_timing timing_exit;
 673         struct kvmppc_exit_timing timing_last_enter;
 674         u32 last_exit_type;
 675         u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
 676         u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 677         u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 678         u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 679         u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 680         u64 timing_last_exit;
 681         struct dentry *debugfs_exit_timing;
 682 #endif
 683
 684 #ifdef CONFIG_PPC_BOOK3S
 685         ulong fault_dar;
 686         u32 fault_dsisr;
 687         unsigned long intr_msr;
 688         ulong fault_gpa;        /* guest real address of page fault (POWER9) */
 689 #endif
 690
 691 #ifdef CONFIG_BOOKE
 692         ulong fault_dear;
 693         ulong fault_esr;
 694         ulong queued_dear;
 695         ulong queued_esr;
 696         spinlock_t wdt_lock;
 697         struct timer_list wdt_timer;
 698         u32 tlbcfg[4];
 699         u32 tlbps[4];
 700         u32 mmucfg;
 701         u32 eptcfg;
 702         u32 epr;
 703         u64 sprg9;
 704         u32 pwrmgtcr0;
 705         u32 crit_save;
 706         /* guest debug registers*/
 707         struct debug_reg dbg_reg;
 708 #endif
 709         gpa_t paddr_accessed;
 710         gva_t vaddr_accessed;
 711         pgd_t *pgdir;
 712
 713         u16 io_gpr; /* GPR used as IO source/target */
 714         u8 mmio_host_swabbed;
 715         u8 mmio_sign_extend;
 716         /* conversion between single and double precision */
 717         u8 mmio_sp64_extend;
 718         /*
 719          * Number of simulations for vsx.
 720          * If we use 2*8bytes to simulate 1*16bytes,
 721          * then the number should be 2 and
 722          * mmio_copy_type=KVMPPC_VSX_COPY_DWORD.
 723          * If we use 4*4bytes to simulate 1*16bytes,
 724          * the number should be 4 and
 725          * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD.
 726          */
 727         u8 mmio_vsx_copy_nums;
 728         u8 mmio_vsx_offset;
 729         u8 mmio_vmx_copy_nums;
 730         u8 mmio_vmx_offset;
 731         u8 mmio_copy_type;
 732         u8 osi_needed;
 733         u8 osi_enabled;
 734         u8 papr_enabled;
 735         u8 watchdog_enabled;
 736         u8 sane;
 737         u8 cpu_type;
 738         u8 hcall_needed;
 739         u8 epr_flags; /* KVMPPC_EPR_xxx */
 740         u8 epr_needed;
 741         u8 external_oneshot;    /* clear external irq after delivery */
 742
 743         u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
 744
 745         struct hrtimer dec_timer;
 746         u64 dec_jiffies;
 747         u64 dec_expires;
 748         unsigned long pending_exceptions;
 749         u8 ceded;
 750         u8 prodded;
 751         u8 doorbell_request;
 752         u8 irq_pending; /* Used by XIVE to signal pending guest irqs */
 753         u32 last_inst;
 754
 755         struct swait_queue_head *wqp;
 756         struct kvmppc_vcore *vcore;
 757         int ret;
 758         int trap;
 759         int state;
 760         int ptid;
 761         int thread_cpu;
 762         int prev_cpu;
 763         bool timer_running;
 764         wait_queue_head_t cpu_run;
 765         struct machine_check_event mce_evt; /* Valid if trap == 0x200 */
 766
 767         struct kvm_vcpu_arch_shared *shared;
 768 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
 769         bool shared_big_endian;
 770 #endif
 771         unsigned long magic_page_pa; /* phys addr to map the magic page to */
 772         unsigned long magic_page_ea; /* effect. addr to map the magic page to */
 773         bool disable_kernel_nx;
 774
 775         int irq_type;           /* one of KVM_IRQ_* */
 776         int irq_cpu_id;
 777         struct openpic *mpic;   /* KVM_IRQ_MPIC */
 778 #ifdef CONFIG_KVM_XICS
 779         struct kvmppc_icp *icp; /* XICS presentation controller */
 780         struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */
 781         __be32 xive_cam_word;    /* Cooked W2 in proper endian with valid bit */
 782         u8 xive_pushed;          /* Is the VP pushed on the physical CPU ? */
 783         u8 xive_esc_on;          /* Is the escalation irq enabled ? */
 784         union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */
 785         u64 xive_esc_raddr;      /* Escalation interrupt ESB real addr */
 786         u64 xive_esc_vaddr;      /* Escalation interrupt ESB virt addr */
 787 #endif
 788
 789 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 790         struct kvm_vcpu_arch_shared shregs;
 791
 792         struct mmio_hpte_cache mmio_cache;
 793         unsigned long pgfault_addr;
 794         long pgfault_index;
 795         unsigned long pgfault_hpte[2];
 796         struct mmio_hpte_cache_entry *pgfault_cache;
 797
 798         struct task_struct *run_task;
 799         struct kvm_run *kvm_run;
 800
 801         spinlock_t vpa_update_lock;
 802         struct kvmppc_vpa vpa;
 803         struct kvmppc_vpa dtl;
 804         struct dtl_entry *dtl_ptr;
 805         unsigned long dtl_index;
 806         u64 stolen_logged;
 807         struct kvmppc_vpa slb_shadow;
 808
 809         spinlock_t tbacct_lock;
 810         u64 busy_stolen;
 811         u64 busy_preempt;
 812
 813         u32 emul_inst;
 814
 815         u32 online;
 816
 817         /* For support of nested guests */
 818         struct kvm_nested_guest *nested;
 819         u32 nested_vcpu_id;
 820         gpa_t nested_io_gpr;
 821 #endif
 822
 823 #ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
 824         struct kvmhv_tb_accumulator *cur_activity;      /* What we're timing */
 825         u64     cur_tb_start;                   /* when it started */
 826         struct kvmhv_tb_accumulator rm_entry;   /* real-mode entry code */
 827         struct kvmhv_tb_accumulator rm_intr;    /* real-mode intr handling */
 828         struct kvmhv_tb_accumulator rm_exit;    /* real-mode exit code */
 829         struct kvmhv_tb_accumulator guest_time; /* guest execution */
 830         struct kvmhv_tb_accumulator cede_time;  /* time napping inside guest */
 831
 832         struct dentry *debugfs_dir;
 833         struct dentry *debugfs_timings;
 834 #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
 835 };
 836
 837 #define VCPU_FPR(vcpu, i)       (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
 838 #define VCPU_VSX_FPR(vcpu, i, j)        ((vcpu)->arch.fp.fpr[i][j])
 839 #define VCPU_VSX_VR(vcpu, i)            ((vcpu)->arch.vr.vr[i])
 840
 841 /* Values for vcpu->arch.state */
 842 #define KVMPPC_VCPU_NOTREADY            0
 843 #define KVMPPC_VCPU_RUNNABLE            1
 844 #define KVMPPC_VCPU_BUSY_IN_HOST        2
 845
 846 /* Values for vcpu->arch.io_gpr */
 847 #define KVM_MMIO_REG_MASK       0x003f
 848 #define KVM_MMIO_REG_EXT_MASK   0xffc0
 849 #define KVM_MMIO_REG_GPR        0x0000
 850 #define KVM_MMIO_REG_FPR        0x0040
 851 #define KVM_MMIO_REG_QPR        0x0080
 852 #define KVM_MMIO_REG_FQPR       0x00c0
 853 #define KVM_MMIO_REG_VSX        0x0100
 854 #define KVM_MMIO_REG_VMX        0x0180
 855 #define KVM_MMIO_REG_NESTED_GPR 0xffc0
 856
 857
 858 #define __KVM_HAVE_ARCH_WQP
 859 #define __KVM_HAVE_CREATE_DEVICE
 860
 861 static inline void kvm_arch_hardware_disable(void) {}
 862 static inline void kvm_arch_hardware_unsetup(void) {}
 863 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
 864 static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}
 865 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
 866 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
 867 static inline void kvm_arch_exit(void) {}
 868 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
 869 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
 870 static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
 871
 872 #endif /* __POWERPC_KVM_HOST_H__ */