include/uapi/linux/kvm.h

   1 #ifndef __LINUX_KVM_H
   2 #define __LINUX_KVM_H
   3
   4 /*
   5  * Userspace interface for /dev/kvm - kernel based virtual machine
   6  *
   7  * Note: you must update KVM_API_VERSION if you change this interface.
   8  */
   9
  10 #include <linux/types.h>
  11 #include <linux/compiler.h>
  12 #include <linux/ioctl.h>
  13 #include <asm/kvm.h>
  14
  15 #define KVM_API_VERSION 12
  16
  17 /* *** Deprecated interfaces *** */
  18
  19 #define KVM_TRC_SHIFT           16
  20
  21 #define KVM_TRC_ENTRYEXIT       (1 << KVM_TRC_SHIFT)
  22 #define KVM_TRC_HANDLER         (1 << (KVM_TRC_SHIFT + 1))
  23
  24 #define KVM_TRC_VMENTRY         (KVM_TRC_ENTRYEXIT + 0x01)
  25 #define KVM_TRC_VMEXIT          (KVM_TRC_ENTRYEXIT + 0x02)
  26 #define KVM_TRC_PAGE_FAULT      (KVM_TRC_HANDLER + 0x01)
  27
  28 #define KVM_TRC_HEAD_SIZE       12
  29 #define KVM_TRC_CYCLE_SIZE      8
  30 #define KVM_TRC_EXTRA_MAX       7
  31
  32 #define KVM_TRC_INJ_VIRQ         (KVM_TRC_HANDLER + 0x02)
  33 #define KVM_TRC_REDELIVER_EVT    (KVM_TRC_HANDLER + 0x03)
  34 #define KVM_TRC_PEND_INTR        (KVM_TRC_HANDLER + 0x04)
  35 #define KVM_TRC_IO_READ          (KVM_TRC_HANDLER + 0x05)
  36 #define KVM_TRC_IO_WRITE         (KVM_TRC_HANDLER + 0x06)
  37 #define KVM_TRC_CR_READ          (KVM_TRC_HANDLER + 0x07)
  38 #define KVM_TRC_CR_WRITE         (KVM_TRC_HANDLER + 0x08)
  39 #define KVM_TRC_DR_READ          (KVM_TRC_HANDLER + 0x09)
  40 #define KVM_TRC_DR_WRITE         (KVM_TRC_HANDLER + 0x0A)
  41 #define KVM_TRC_MSR_READ         (KVM_TRC_HANDLER + 0x0B)
  42 #define KVM_TRC_MSR_WRITE        (KVM_TRC_HANDLER + 0x0C)
  43 #define KVM_TRC_CPUID            (KVM_TRC_HANDLER + 0x0D)
  44 #define KVM_TRC_INTR             (KVM_TRC_HANDLER + 0x0E)
  45 #define KVM_TRC_NMI              (KVM_TRC_HANDLER + 0x0F)
  46 #define KVM_TRC_VMMCALL          (KVM_TRC_HANDLER + 0x10)
  47 #define KVM_TRC_HLT              (KVM_TRC_HANDLER + 0x11)
  48 #define KVM_TRC_CLTS             (KVM_TRC_HANDLER + 0x12)
  49 #define KVM_TRC_LMSW             (KVM_TRC_HANDLER + 0x13)
  50 #define KVM_TRC_APIC_ACCESS      (KVM_TRC_HANDLER + 0x14)
  51 #define KVM_TRC_TDP_FAULT        (KVM_TRC_HANDLER + 0x15)
  52 #define KVM_TRC_GTLB_WRITE       (KVM_TRC_HANDLER + 0x16)
  53 #define KVM_TRC_STLB_WRITE       (KVM_TRC_HANDLER + 0x17)
  54 #define KVM_TRC_STLB_INVAL       (KVM_TRC_HANDLER + 0x18)
  55 #define KVM_TRC_PPC_INSTR        (KVM_TRC_HANDLER + 0x19)
  56
  57 struct kvm_user_trace_setup {
  58         __u32 buf_size;
  59         __u32 buf_nr;
  60 };
  61
  62 #define __KVM_DEPRECATED_MAIN_W_0x06 \
  63         _IOW(KVMIO, 0x06, struct kvm_user_trace_setup)
  64 #define __KVM_DEPRECATED_MAIN_0x07 _IO(KVMIO, 0x07)
  65 #define __KVM_DEPRECATED_MAIN_0x08 _IO(KVMIO, 0x08)
  66
  67 #define __KVM_DEPRECATED_VM_R_0x70 _IOR(KVMIO, 0x70, struct kvm_assigned_irq)
  68
  69 struct kvm_breakpoint {
  70         __u32 enabled;
  71         __u32 padding;
  72         __u64 address;
  73 };
  74
  75 struct kvm_debug_guest {
  76         __u32 enabled;
  77         __u32 pad;
  78         struct kvm_breakpoint breakpoints[4];
  79         __u32 singlestep;
  80 };
  81
  82 #define __KVM_DEPRECATED_VCPU_W_0x87 _IOW(KVMIO, 0x87, struct kvm_debug_guest)
  83
  84 /* *** End of deprecated interfaces *** */
  85
  86
  87 /* for KVM_CREATE_MEMORY_REGION */
  88 struct kvm_memory_region {
  89         __u32 slot;
  90         __u32 flags;
  91         __u64 guest_phys_addr;
  92         __u64 memory_size; /* bytes */
  93 };
  94
  95 /* for KVM_SET_USER_MEMORY_REGION */
  96 struct kvm_userspace_memory_region {
  97         __u32 slot;
  98         __u32 flags;
  99         __u64 guest_phys_addr;
 100         __u64 memory_size; /* bytes */
 101         __u64 userspace_addr; /* start of the userspace allocated memory */
 102 };
 103
 104 /*
 105  * The bit 0 ~ bit 15 of kvm_memory_region::flags are visible for userspace,
 106  * other bits are reserved for kvm internal use which are defined in
 107  * include/linux/kvm_host.h.
 108  */
 109 #define KVM_MEM_LOG_DIRTY_PAGES (1UL << 0)
 110 #define KVM_MEM_READONLY        (1UL << 1)
 111
 112 /* for KVM_IRQ_LINE */
 113 struct kvm_irq_level {
 114         /*
 115          * ACPI gsi notion of irq.
 116          * For IA-64 (APIC model) IOAPIC0: irq 0-23; IOAPIC1: irq 24-47..
 117          * For X86 (standard AT mode) PIC0/1: irq 0-15. IOAPIC0: 0-23..
 118          * For ARM: See Documentation/virtual/kvm/api.txt
 119          */
 120         union {
 121                 __u32 irq;
 122                 __s32 status;
 123         };
 124         __u32 level;
 125 };
 126
 127
 128 struct kvm_irqchip {
 129         __u32 chip_id;
 130         __u32 pad;
 131         union {
 132                 char dummy[512];  /* reserving space */
 133 #ifdef __KVM_HAVE_PIT
 134                 struct kvm_pic_state pic;
 135 #endif
 136 #ifdef __KVM_HAVE_IOAPIC
 137                 struct kvm_ioapic_state ioapic;
 138 #endif
 139         } chip;
 140 };
 141
 142 /* for KVM_CREATE_PIT2 */
 143 struct kvm_pit_config {
 144         __u32 flags;
 145         __u32 pad[15];
 146 };
 147
 148 #define KVM_PIT_SPEAKER_DUMMY     1
 149
 150 #define KVM_EXIT_UNKNOWN          0
 151 #define KVM_EXIT_EXCEPTION        1
 152 #define KVM_EXIT_IO               2
 153 #define KVM_EXIT_HYPERCALL        3
 154 #define KVM_EXIT_DEBUG            4
 155 #define KVM_EXIT_HLT              5
 156 #define KVM_EXIT_MMIO             6
 157 #define KVM_EXIT_IRQ_WINDOW_OPEN  7
 158 #define KVM_EXIT_SHUTDOWN         8
 159 #define KVM_EXIT_FAIL_ENTRY       9
 160 #define KVM_EXIT_INTR             10
 161 #define KVM_EXIT_SET_TPR          11
 162 #define KVM_EXIT_TPR_ACCESS       12
 163 #define KVM_EXIT_S390_SIEIC       13
 164 #define KVM_EXIT_S390_RESET       14
 165 #define KVM_EXIT_DCR              15
 166 #define KVM_EXIT_NMI              16
 167 #define KVM_EXIT_INTERNAL_ERROR   17
 168 #define KVM_EXIT_OSI              18
 169 #define KVM_EXIT_PAPR_HCALL       19
 170 #define KVM_EXIT_S390_UCONTROL    20
 171 #define KVM_EXIT_WATCHDOG         21
 172
 173 /* For KVM_EXIT_INTERNAL_ERROR */
 174 /* Emulate instruction failed. */
 175 #define KVM_INTERNAL_ERROR_EMULATION    1
 176 /* Encounter unexpected simultaneous exceptions. */
 177 #define KVM_INTERNAL_ERROR_SIMUL_EX     2
 178 /* Encounter unexpected vm-exit due to delivery event. */
 179 #define KVM_INTERNAL_ERROR_DELIVERY_EV  3
 180
 181 /* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */
 182 struct kvm_run {
 183         /* in */
 184         __u8 request_interrupt_window;
 185         __u8 padding1[7];
 186
 187         /* out */
 188         __u32 exit_reason;
 189         __u8 ready_for_interrupt_injection;
 190         __u8 if_flag;
 191         __u8 padding2[2];
 192
 193         /* in (pre_kvm_run), out (post_kvm_run) */
 194         __u64 cr8;
 195         __u64 apic_base;
 196
 197 #ifdef __KVM_S390
 198         /* the processor status word for s390 */
 199         __u64 psw_mask; /* psw upper half */
 200         __u64 psw_addr; /* psw lower half */
 201 #endif
 202         union {
 203                 /* KVM_EXIT_UNKNOWN */
 204                 struct {
 205                         __u64 hardware_exit_reason;
 206                 } hw;
 207                 /* KVM_EXIT_FAIL_ENTRY */
 208                 struct {
 209                         __u64 hardware_entry_failure_reason;
 210                 } fail_entry;
 211                 /* KVM_EXIT_EXCEPTION */
 212                 struct {
 213                         __u32 exception;
 214                         __u32 error_code;
 215                 } ex;
 216                 /* KVM_EXIT_IO */
 217                 struct {
 218 #define KVM_EXIT_IO_IN  0
 219 #define KVM_EXIT_IO_OUT 1
 220                         __u8 direction;
 221                         __u8 size; /* bytes */
 222                         __u16 port;
 223                         __u32 count;
 224                         __u64 data_offset; /* relative to kvm_run start */
 225                 } io;
 226                 struct {
 227                         struct kvm_debug_exit_arch arch;
 228                 } debug;
 229                 /* KVM_EXIT_MMIO */
 230                 struct {
 231                         __u64 phys_addr;
 232                         __u8  data[8];
 233                         __u32 len;
 234                         __u8  is_write;
 235                 } mmio;
 236                 /* KVM_EXIT_HYPERCALL */
 237                 struct {
 238                         __u64 nr;
 239                         __u64 args[6];
 240                         __u64 ret;
 241                         __u32 longmode;
 242                         __u32 pad;
 243                 } hypercall;
 244                 /* KVM_EXIT_TPR_ACCESS */
 245                 struct {
 246                         __u64 rip;
 247                         __u32 is_write;
 248                         __u32 pad;
 249                 } tpr_access;
 250                 /* KVM_EXIT_S390_SIEIC */
 251                 struct {
 252                         __u8 icptcode;
 253                         __u16 ipa;
 254                         __u32 ipb;
 255                 } s390_sieic;
 256                 /* KVM_EXIT_S390_RESET */
 257 #define KVM_S390_RESET_POR       1
 258 #define KVM_S390_RESET_CLEAR     2
 259 #define KVM_S390_RESET_SUBSYSTEM 4
 260 #define KVM_S390_RESET_CPU_INIT  8
 261 #define KVM_S390_RESET_IPL       16
 262                 __u64 s390_reset_flags;
 263                 /* KVM_EXIT_S390_UCONTROL */
 264                 struct {
 265                         __u64 trans_exc_code;
 266                         __u32 pgm_code;
 267                 } s390_ucontrol;
 268                 /* KVM_EXIT_DCR */
 269                 struct {
 270                         __u32 dcrn;
 271                         __u32 data;
 272                         __u8  is_write;
 273                 } dcr;
 274                 struct {
 275                         __u32 suberror;
 276                         /* Available with KVM_CAP_INTERNAL_ERROR_DATA: */
 277                         __u32 ndata;
 278                         __u64 data[16];
 279                 } internal;
 280                 /* KVM_EXIT_OSI */
 281                 struct {
 282                         __u64 gprs[32];
 283                 } osi;
 284                 struct {
 285                         __u64 nr;
 286                         __u64 ret;
 287                         __u64 args[9];
 288                 } papr_hcall;
 289                 /* Fix the size of the union. */
 290                 char padding[256];
 291         };
 292
 293         /*
 294          * shared registers between kvm and userspace.
 295          * kvm_valid_regs specifies the register classes set by the host
 296          * kvm_dirty_regs specified the register classes dirtied by userspace
 297          * struct kvm_sync_regs is architecture specific, as well as the
 298          * bits for kvm_valid_regs and kvm_dirty_regs
 299          */
 300         __u64 kvm_valid_regs;
 301         __u64 kvm_dirty_regs;
 302         union {
 303                 struct kvm_sync_regs regs;
 304                 char padding[1024];
 305         } s;
 306 };
 307
 308 /* for KVM_REGISTER_COALESCED_MMIO / KVM_UNREGISTER_COALESCED_MMIO */
 309
 310 struct kvm_coalesced_mmio_zone {
 311         __u64 addr;
 312         __u32 size;
 313         __u32 pad;
 314 };
 315
 316 struct kvm_coalesced_mmio {
 317         __u64 phys_addr;
 318         __u32 len;
 319         __u32 pad;
 320         __u8  data[8];
 321 };
 322
 323 struct kvm_coalesced_mmio_ring {
 324         __u32 first, last;
 325         struct kvm_coalesced_mmio coalesced_mmio[0];
 326 };
 327
 328 #define KVM_COALESCED_MMIO_MAX \
 329         ((PAGE_SIZE - sizeof(struct kvm_coalesced_mmio_ring)) / \
 330          sizeof(struct kvm_coalesced_mmio))
 331
 332 /* for KVM_TRANSLATE */
 333 struct kvm_translation {
 334         /* in */
 335         __u64 linear_address;
 336
 337         /* out */
 338         __u64 physical_address;
 339         __u8  valid;
 340         __u8  writeable;
 341         __u8  usermode;
 342         __u8  pad[5];
 343 };
 344
 345 /* for KVM_INTERRUPT */
 346 struct kvm_interrupt {
 347         /* in */
 348         __u32 irq;
 349 };
 350
 351 /* for KVM_GET_DIRTY_LOG */
 352 struct kvm_dirty_log {
 353         __u32 slot;
 354         __u32 padding1;
 355         union {
 356                 void __user *dirty_bitmap; /* one bit per page */
 357                 __u64 padding2;
 358         };
 359 };
 360
 361 /* for KVM_SET_SIGNAL_MASK */
 362 struct kvm_signal_mask {
 363         __u32 len;
 364         __u8  sigset[0];
 365 };
 366
 367 /* for KVM_TPR_ACCESS_REPORTING */
 368 struct kvm_tpr_access_ctl {
 369         __u32 enabled;
 370         __u32 flags;
 371         __u32 reserved[8];
 372 };
 373
 374 /* for KVM_SET_VAPIC_ADDR */
 375 struct kvm_vapic_addr {
 376         __u64 vapic_addr;
 377 };
 378
 379 /* for KVM_SET_MPSTATE */
 380
 381 #define KVM_MP_STATE_RUNNABLE          0
 382 #define KVM_MP_STATE_UNINITIALIZED     1
 383 #define KVM_MP_STATE_INIT_RECEIVED     2
 384 #define KVM_MP_STATE_HALTED            3
 385 #define KVM_MP_STATE_SIPI_RECEIVED     4
 386
 387 struct kvm_mp_state {
 388         __u32 mp_state;
 389 };
 390
 391 struct kvm_s390_psw {
 392         __u64 mask;
 393         __u64 addr;
 394 };
 395
 396 /* valid values for type in kvm_s390_interrupt */
 397 #define KVM_S390_SIGP_STOP              0xfffe0000u
 398 #define KVM_S390_PROGRAM_INT            0xfffe0001u
 399 #define KVM_S390_SIGP_SET_PREFIX        0xfffe0002u
 400 #define KVM_S390_RESTART                0xfffe0003u
 401 #define KVM_S390_INT_VIRTIO             0xffff2603u
 402 #define KVM_S390_INT_SERVICE            0xffff2401u
 403 #define KVM_S390_INT_EMERGENCY          0xffff1201u
 404 #define KVM_S390_INT_EXTERNAL_CALL      0xffff1202u
 405
 406 struct kvm_s390_interrupt {
 407         __u32 type;
 408         __u32 parm;
 409         __u64 parm64;
 410 };
 411
 412 /* for KVM_SET_GUEST_DEBUG */
 413
 414 #define KVM_GUESTDBG_ENABLE             0x00000001
 415 #define KVM_GUESTDBG_SINGLESTEP         0x00000002
 416
 417 struct kvm_guest_debug {
 418         __u32 control;
 419         __u32 pad;
 420         struct kvm_guest_debug_arch arch;
 421 };
 422
 423 enum {
 424         kvm_ioeventfd_flag_nr_datamatch,
 425         kvm_ioeventfd_flag_nr_pio,
 426         kvm_ioeventfd_flag_nr_deassign,
 427         kvm_ioeventfd_flag_nr_max,
 428 };
 429
 430 #define KVM_IOEVENTFD_FLAG_DATAMATCH (1 << kvm_ioeventfd_flag_nr_datamatch)
 431 #define KVM_IOEVENTFD_FLAG_PIO       (1 << kvm_ioeventfd_flag_nr_pio)
 432 #define KVM_IOEVENTFD_FLAG_DEASSIGN  (1 << kvm_ioeventfd_flag_nr_deassign)
 433
 434 #define KVM_IOEVENTFD_VALID_FLAG_MASK  ((1 << kvm_ioeventfd_flag_nr_max) - 1)
 435
 436 struct kvm_ioeventfd {
 437         __u64 datamatch;
 438         __u64 addr;        /* legal pio/mmio address */
 439         __u32 len;         /* 1, 2, 4, or 8 bytes    */
 440         __s32 fd;
 441         __u32 flags;
 442         __u8  pad[36];
 443 };
 444
 445 /* for KVM_ENABLE_CAP */
 446 struct kvm_enable_cap {
 447         /* in */
 448         __u32 cap;
 449         __u32 flags;
 450         __u64 args[4];
 451         __u8  pad[64];
 452 };
 453
 454 /* for KVM_PPC_GET_PVINFO */
 455 struct kvm_ppc_pvinfo {
 456         /* out */
 457         __u32 flags;
 458         __u32 hcall[4];
 459         __u8  pad[108];
 460 };
 461
 462 /* for KVM_PPC_GET_SMMU_INFO */
 463 #define KVM_PPC_PAGE_SIZES_MAX_SZ       8
 464
 465 struct kvm_ppc_one_page_size {
 466         __u32 page_shift;       /* Page shift (or 0) */
 467         __u32 pte_enc;          /* Encoding in the HPTE (>>12) */
 468 };
 469
 470 struct kvm_ppc_one_seg_page_size {
 471         __u32 page_shift;       /* Base page shift of segment (or 0) */
 472         __u32 slb_enc;          /* SLB encoding for BookS */
 473         struct kvm_ppc_one_page_size enc[KVM_PPC_PAGE_SIZES_MAX_SZ];
 474 };
 475
 476 #define KVM_PPC_PAGE_SIZES_REAL         0x00000001
 477 #define KVM_PPC_1T_SEGMENTS             0x00000002
 478
 479 struct kvm_ppc_smmu_info {
 480         __u64 flags;
 481         __u32 slb_size;
 482         __u32 pad;
 483         struct kvm_ppc_one_seg_page_size sps[KVM_PPC_PAGE_SIZES_MAX_SZ];
 484 };
 485
 486 #define KVM_PPC_PVINFO_FLAGS_EV_IDLE   (1<<0)
 487
 488 #define KVMIO 0xAE
 489
 490 /* machine type bits, to be used as argument to KVM_CREATE_VM */
 491 #define KVM_VM_S390_UCONTROL    1
 492
 493 #define KVM_S390_SIE_PAGE_OFFSET 1
 494
 495 /*
 496  * ioctls for /dev/kvm fds:
 497  */
 498 #define KVM_GET_API_VERSION       _IO(KVMIO,   0x00)
 499 #define KVM_CREATE_VM             _IO(KVMIO,   0x01) /* returns a VM fd */
 500 #define KVM_GET_MSR_INDEX_LIST    _IOWR(KVMIO, 0x02, struct kvm_msr_list)
 501
 502 #define KVM_S390_ENABLE_SIE       _IO(KVMIO,   0x06)
 503 /*
 504  * Check if a kvm extension is available.  Argument is extension number,
 505  * return is 1 (yes) or 0 (no, sorry).
 506  */
 507 #define KVM_CHECK_EXTENSION       _IO(KVMIO,   0x03)
 508 /*
 509  * Get size for mmap(vcpu_fd)
 510  */
 511 #define KVM_GET_VCPU_MMAP_SIZE    _IO(KVMIO,   0x04) /* in bytes */
 512 #define KVM_GET_SUPPORTED_CPUID   _IOWR(KVMIO, 0x05, struct kvm_cpuid2)
 513 #define KVM_TRACE_ENABLE          __KVM_DEPRECATED_MAIN_W_0x06
 514 #define KVM_TRACE_PAUSE           __KVM_DEPRECATED_MAIN_0x07
 515 #define KVM_TRACE_DISABLE         __KVM_DEPRECATED_MAIN_0x08
 516
 517 /*
 518  * Extension capability list.
 519  */
 520 #define KVM_CAP_IRQCHIP   0
 521 #define KVM_CAP_HLT       1
 522 #define KVM_CAP_MMU_SHADOW_CACHE_CONTROL 2
 523 #define KVM_CAP_USER_MEMORY 3
 524 #define KVM_CAP_SET_TSS_ADDR 4
 525 #define KVM_CAP_VAPIC 6
 526 #define KVM_CAP_EXT_CPUID 7
 527 #define KVM_CAP_CLOCKSOURCE 8
 528 #define KVM_CAP_NR_VCPUS 9       /* returns recommended max vcpus per vm */
 529 #define KVM_CAP_NR_MEMSLOTS 10   /* returns max memory slots per vm */
 530 #define KVM_CAP_PIT 11
 531 #define KVM_CAP_NOP_IO_DELAY 12
 532 #define KVM_CAP_PV_MMU 13
 533 #define KVM_CAP_MP_STATE 14
 534 #define KVM_CAP_COALESCED_MMIO 15
 535 #define KVM_CAP_SYNC_MMU 16  /* Changes to host mmap are reflected in guest */
 536 #ifdef __KVM_HAVE_DEVICE_ASSIGNMENT
 537 #define KVM_CAP_DEVICE_ASSIGNMENT 17
 538 #endif
 539 #define KVM_CAP_IOMMU 18
 540 #ifdef __KVM_HAVE_MSI
 541 #define KVM_CAP_DEVICE_MSI 20
 542 #endif
 543 /* Bug in KVM_SET_USER_MEMORY_REGION fixed: */
 544 #define KVM_CAP_DESTROY_MEMORY_REGION_WORKS 21
 545 #ifdef __KVM_HAVE_USER_NMI
 546 #define KVM_CAP_USER_NMI 22
 547 #endif
 548 #ifdef __KVM_HAVE_GUEST_DEBUG
 549 #define KVM_CAP_SET_GUEST_DEBUG 23
 550 #endif
 551 #ifdef __KVM_HAVE_PIT
 552 #define KVM_CAP_REINJECT_CONTROL 24
 553 #endif
 554 #ifdef __KVM_HAVE_IOAPIC
 555 #define KVM_CAP_IRQ_ROUTING 25
 556 #endif
 557 #define KVM_CAP_IRQ_INJECT_STATUS 26
 558 #ifdef __KVM_HAVE_DEVICE_ASSIGNMENT
 559 #define KVM_CAP_DEVICE_DEASSIGNMENT 27
 560 #endif
 561 #ifdef __KVM_HAVE_MSIX
 562 #define KVM_CAP_DEVICE_MSIX 28
 563 #endif
 564 #define KVM_CAP_ASSIGN_DEV_IRQ 29
 565 /* Another bug in KVM_SET_USER_MEMORY_REGION fixed: */
 566 #define KVM_CAP_JOIN_MEMORY_REGIONS_WORKS 30
 567 #ifdef __KVM_HAVE_MCE
 568 #define KVM_CAP_MCE 31
 569 #endif
 570 #define KVM_CAP_IRQFD 32
 571 #ifdef __KVM_HAVE_PIT
 572 #define KVM_CAP_PIT2 33
 573 #endif
 574 #define KVM_CAP_SET_BOOT_CPU_ID 34
 575 #ifdef __KVM_HAVE_PIT_STATE2
 576 #define KVM_CAP_PIT_STATE2 35
 577 #endif
 578 #define KVM_CAP_IOEVENTFD 36
 579 #define KVM_CAP_SET_IDENTITY_MAP_ADDR 37
 580 #ifdef __KVM_HAVE_XEN_HVM
 581 #define KVM_CAP_XEN_HVM 38
 582 #endif
 583 #define KVM_CAP_ADJUST_CLOCK 39
 584 #define KVM_CAP_INTERNAL_ERROR_DATA 40
 585 #ifdef __KVM_HAVE_VCPU_EVENTS
 586 #define KVM_CAP_VCPU_EVENTS 41
 587 #endif
 588 #define KVM_CAP_S390_PSW 42
 589 #define KVM_CAP_PPC_SEGSTATE 43
 590 #define KVM_CAP_HYPERV 44
 591 #define KVM_CAP_HYPERV_VAPIC 45
 592 #define KVM_CAP_HYPERV_SPIN 46
 593 #define KVM_CAP_PCI_SEGMENT 47
 594 #define KVM_CAP_PPC_PAIRED_SINGLES 48
 595 #define KVM_CAP_INTR_SHADOW 49
 596 #ifdef __KVM_HAVE_DEBUGREGS
 597 #define KVM_CAP_DEBUGREGS 50
 598 #endif
 599 #define KVM_CAP_X86_ROBUST_SINGLESTEP 51
 600 #define KVM_CAP_PPC_OSI 52
 601 #define KVM_CAP_PPC_UNSET_IRQ 53
 602 #define KVM_CAP_ENABLE_CAP 54
 603 #ifdef __KVM_HAVE_XSAVE
 604 #define KVM_CAP_XSAVE 55
 605 #endif
 606 #ifdef __KVM_HAVE_XCRS
 607 #define KVM_CAP_XCRS 56
 608 #endif
 609 #define KVM_CAP_PPC_GET_PVINFO 57
 610 #define KVM_CAP_PPC_IRQ_LEVEL 58
 611 #define KVM_CAP_ASYNC_PF 59
 612 #define KVM_CAP_TSC_CONTROL 60
 613 #define KVM_CAP_GET_TSC_KHZ 61
 614 #define KVM_CAP_PPC_BOOKE_SREGS 62
 615 #define KVM_CAP_SPAPR_TCE 63
 616 #define KVM_CAP_PPC_SMT 64
 617 #define KVM_CAP_PPC_RMA 65
 618 #define KVM_CAP_MAX_VCPUS 66       /* returns max vcpus per vm */
 619 #define KVM_CAP_PPC_HIOR 67
 620 #define KVM_CAP_PPC_PAPR 68
 621 #define KVM_CAP_SW_TLB 69
 622 #define KVM_CAP_ONE_REG 70
 623 #define KVM_CAP_S390_GMAP 71
 624 #define KVM_CAP_TSC_DEADLINE_TIMER 72
 625 #define KVM_CAP_S390_UCONTROL 73
 626 #define KVM_CAP_SYNC_REGS 74
 627 #define KVM_CAP_PCI_2_3 75
 628 #define KVM_CAP_KVMCLOCK_CTRL 76
 629 #define KVM_CAP_SIGNAL_MSI 77
 630 #define KVM_CAP_PPC_GET_SMMU_INFO 78
 631 #define KVM_CAP_S390_COW 79
 632 #define KVM_CAP_PPC_ALLOC_HTAB 80
 633 #ifdef __KVM_HAVE_READONLY_MEM
 634 #define KVM_CAP_READONLY_MEM 81
 635 #endif
 636 #define KVM_CAP_IRQFD_RESAMPLE 82
 637 #define KVM_CAP_PPC_BOOKE_WATCHDOG 83
 638 #define KVM_CAP_PPC_HTAB_FD 84
 639 #define KVM_CAP_ARM_PSCI 87
 640
 641 #ifdef KVM_CAP_IRQ_ROUTING
 642
 643 struct kvm_irq_routing_irqchip {
 644         __u32 irqchip;
 645         __u32 pin;
 646 };
 647
 648 struct kvm_irq_routing_msi {
 649         __u32 address_lo;
 650         __u32 address_hi;
 651         __u32 data;
 652         __u32 pad;
 653 };
 654
 655 /* gsi routing entry types */
 656 #define KVM_IRQ_ROUTING_IRQCHIP 1
 657 #define KVM_IRQ_ROUTING_MSI 2
 658
 659 struct kvm_irq_routing_entry {
 660         __u32 gsi;
 661         __u32 type;
 662         __u32 flags;
 663         __u32 pad;
 664         union {
 665                 struct kvm_irq_routing_irqchip irqchip;
 666                 struct kvm_irq_routing_msi msi;
 667                 __u32 pad[8];
 668         } u;
 669 };
 670
 671 struct kvm_irq_routing {
 672         __u32 nr;
 673         __u32 flags;
 674         struct kvm_irq_routing_entry entries[0];
 675 };
 676
 677 #endif
 678
 679 #ifdef KVM_CAP_MCE
 680 /* x86 MCE */
 681 struct kvm_x86_mce {
 682         __u64 status;
 683         __u64 addr;
 684         __u64 misc;
 685         __u64 mcg_status;
 686         __u8 bank;
 687         __u8 pad1[7];
 688         __u64 pad2[3];
 689 };
 690 #endif
 691
 692 #ifdef KVM_CAP_XEN_HVM
 693 struct kvm_xen_hvm_config {
 694         __u32 flags;
 695         __u32 msr;
 696         __u64 blob_addr_32;
 697         __u64 blob_addr_64;
 698         __u8 blob_size_32;
 699         __u8 blob_size_64;
 700         __u8 pad2[30];
 701 };
 702 #endif
 703
 704 #define KVM_IRQFD_FLAG_DEASSIGN (1 << 0)
 705 /*
 706  * Available with KVM_CAP_IRQFD_RESAMPLE
 707  *
 708  * KVM_IRQFD_FLAG_RESAMPLE indicates resamplefd is valid and specifies
 709  * the irqfd to operate in resampling mode for level triggered interrupt
 710  * emlation.  See Documentation/virtual/kvm/api.txt.
 711  */
 712 #define KVM_IRQFD_FLAG_RESAMPLE (1 << 1)
 713
 714 struct kvm_irqfd {
 715         __u32 fd;
 716         __u32 gsi;
 717         __u32 flags;
 718         __u32 resamplefd;
 719         __u8  pad[16];
 720 };
 721
 722 struct kvm_clock_data {
 723         __u64 clock;
 724         __u32 flags;
 725         __u32 pad[9];
 726 };
 727
 728 #define KVM_MMU_FSL_BOOKE_NOHV          0
 729 #define KVM_MMU_FSL_BOOKE_HV            1
 730
 731 struct kvm_config_tlb {
 732         __u64 params;
 733         __u64 array;
 734         __u32 mmu_type;
 735         __u32 array_len;
 736 };
 737
 738 struct kvm_dirty_tlb {
 739         __u64 bitmap;
 740         __u32 num_dirty;
 741 };
 742
 743 /* Available with KVM_CAP_ONE_REG */
 744
 745 #define KVM_REG_ARCH_MASK       0xff00000000000000ULL
 746 #define KVM_REG_GENERIC         0x0000000000000000ULL
 747
 748 /*
 749  * Architecture specific registers are to be defined in arch headers and
 750  * ORed with the arch identifier.
 751  */
 752 #define KVM_REG_PPC             0x1000000000000000ULL
 753 #define KVM_REG_X86             0x2000000000000000ULL
 754 #define KVM_REG_IA64            0x3000000000000000ULL
 755 #define KVM_REG_ARM             0x4000000000000000ULL
 756 #define KVM_REG_S390            0x5000000000000000ULL
 757
 758 #define KVM_REG_SIZE_SHIFT      52
 759 #define KVM_REG_SIZE_MASK       0x00f0000000000000ULL
 760 #define KVM_REG_SIZE_U8         0x0000000000000000ULL
 761 #define KVM_REG_SIZE_U16        0x0010000000000000ULL
 762 #define KVM_REG_SIZE_U32        0x0020000000000000ULL
 763 #define KVM_REG_SIZE_U64        0x0030000000000000ULL
 764 #define KVM_REG_SIZE_U128       0x0040000000000000ULL
 765 #define KVM_REG_SIZE_U256       0x0050000000000000ULL
 766 #define KVM_REG_SIZE_U512       0x0060000000000000ULL
 767 #define KVM_REG_SIZE_U1024      0x0070000000000000ULL
 768
 769 struct kvm_reg_list {
 770         __u64 n; /* number of regs */
 771         __u64 reg[0];
 772 };
 773
 774 struct kvm_one_reg {
 775         __u64 id;
 776         __u64 addr;
 777 };
 778
 779 struct kvm_msi {
 780         __u32 address_lo;
 781         __u32 address_hi;
 782         __u32 data;
 783         __u32 flags;
 784         __u8  pad[16];
 785 };
 786
 787 /*
 788  * ioctls for VM fds
 789  */
 790 #define KVM_SET_MEMORY_REGION     _IOW(KVMIO,  0x40, struct kvm_memory_region)
 791 /*
 792  * KVM_CREATE_VCPU receives as a parameter the vcpu slot, and returns
 793  * a vcpu fd.
 794  */
 795 #define KVM_CREATE_VCPU           _IO(KVMIO,   0x41)
 796 #define KVM_GET_DIRTY_LOG         _IOW(KVMIO,  0x42, struct kvm_dirty_log)
 797 /* KVM_SET_MEMORY_ALIAS is obsolete: */
 798 #define KVM_SET_MEMORY_ALIAS      _IOW(KVMIO,  0x43, struct kvm_memory_alias)
 799 #define KVM_SET_NR_MMU_PAGES      _IO(KVMIO,   0x44)
 800 #define KVM_GET_NR_MMU_PAGES      _IO(KVMIO,   0x45)
 801 #define KVM_SET_USER_MEMORY_REGION _IOW(KVMIO, 0x46, \
 802                                         struct kvm_userspace_memory_region)
 803 #define KVM_SET_TSS_ADDR          _IO(KVMIO,   0x47)
 804 #define KVM_SET_IDENTITY_MAP_ADDR _IOW(KVMIO,  0x48, __u64)
 805
 806 /* enable ucontrol for s390 */
 807 struct kvm_s390_ucas_mapping {
 808         __u64 user_addr;
 809         __u64 vcpu_addr;
 810         __u64 length;
 811 };
 812 #define KVM_S390_UCAS_MAP        _IOW(KVMIO, 0x50, struct kvm_s390_ucas_mapping)
 813 #define KVM_S390_UCAS_UNMAP      _IOW(KVMIO, 0x51, struct kvm_s390_ucas_mapping)
 814 #define KVM_S390_VCPU_FAULT      _IOW(KVMIO, 0x52, unsigned long)
 815
 816 /* Device model IOC */
 817 #define KVM_CREATE_IRQCHIP        _IO(KVMIO,   0x60)
 818 #define KVM_IRQ_LINE              _IOW(KVMIO,  0x61, struct kvm_irq_level)
 819 #define KVM_GET_IRQCHIP           _IOWR(KVMIO, 0x62, struct kvm_irqchip)
 820 #define KVM_SET_IRQCHIP           _IOR(KVMIO,  0x63, struct kvm_irqchip)
 821 #define KVM_CREATE_PIT            _IO(KVMIO,   0x64)
 822 #define KVM_GET_PIT               _IOWR(KVMIO, 0x65, struct kvm_pit_state)
 823 #define KVM_SET_PIT               _IOR(KVMIO,  0x66, struct kvm_pit_state)
 824 #define KVM_IRQ_LINE_STATUS       _IOWR(KVMIO, 0x67, struct kvm_irq_level)
 825 #define KVM_REGISTER_COALESCED_MMIO \
 826                         _IOW(KVMIO,  0x67, struct kvm_coalesced_mmio_zone)
 827 #define KVM_UNREGISTER_COALESCED_MMIO \
 828                         _IOW(KVMIO,  0x68, struct kvm_coalesced_mmio_zone)
 829 #define KVM_ASSIGN_PCI_DEVICE     _IOR(KVMIO,  0x69, \
 830                                        struct kvm_assigned_pci_dev)
 831 #define KVM_SET_GSI_ROUTING       _IOW(KVMIO,  0x6a, struct kvm_irq_routing)
 832 /* deprecated, replaced by KVM_ASSIGN_DEV_IRQ */
 833 #define KVM_ASSIGN_IRQ            __KVM_DEPRECATED_VM_R_0x70
 834 #define KVM_ASSIGN_DEV_IRQ        _IOW(KVMIO,  0x70, struct kvm_assigned_irq)
 835 #define KVM_REINJECT_CONTROL      _IO(KVMIO,   0x71)
 836 #define KVM_DEASSIGN_PCI_DEVICE   _IOW(KVMIO,  0x72, \
 837                                        struct kvm_assigned_pci_dev)
 838 #define KVM_ASSIGN_SET_MSIX_NR    _IOW(KVMIO,  0x73, \
 839                                        struct kvm_assigned_msix_nr)
 840 #define KVM_ASSIGN_SET_MSIX_ENTRY _IOW(KVMIO,  0x74, \
 841                                        struct kvm_assigned_msix_entry)
 842 #define KVM_DEASSIGN_DEV_IRQ      _IOW(KVMIO,  0x75, struct kvm_assigned_irq)
 843 #define KVM_IRQFD                 _IOW(KVMIO,  0x76, struct kvm_irqfd)
 844 #define KVM_CREATE_PIT2           _IOW(KVMIO,  0x77, struct kvm_pit_config)
 845 #define KVM_SET_BOOT_CPU_ID       _IO(KVMIO,   0x78)
 846 #define KVM_IOEVENTFD             _IOW(KVMIO,  0x79, struct kvm_ioeventfd)
 847 #define KVM_XEN_HVM_CONFIG        _IOW(KVMIO,  0x7a, struct kvm_xen_hvm_config)
 848 #define KVM_SET_CLOCK             _IOW(KVMIO,  0x7b, struct kvm_clock_data)
 849 #define KVM_GET_CLOCK             _IOR(KVMIO,  0x7c, struct kvm_clock_data)
 850 /* Available with KVM_CAP_PIT_STATE2 */
 851 #define KVM_GET_PIT2              _IOR(KVMIO,  0x9f, struct kvm_pit_state2)
 852 #define KVM_SET_PIT2              _IOW(KVMIO,  0xa0, struct kvm_pit_state2)
 853 /* Available with KVM_CAP_PPC_GET_PVINFO */
 854 #define KVM_PPC_GET_PVINFO        _IOW(KVMIO,  0xa1, struct kvm_ppc_pvinfo)
 855 /* Available with KVM_CAP_TSC_CONTROL */
 856 #define KVM_SET_TSC_KHZ           _IO(KVMIO,  0xa2)
 857 #define KVM_GET_TSC_KHZ           _IO(KVMIO,  0xa3)
 858 /* Available with KVM_CAP_PCI_2_3 */
 859 #define KVM_ASSIGN_SET_INTX_MASK  _IOW(KVMIO,  0xa4, \
 860                                        struct kvm_assigned_pci_dev)
 861 /* Available with KVM_CAP_SIGNAL_MSI */
 862 #define KVM_SIGNAL_MSI            _IOW(KVMIO,  0xa5, struct kvm_msi)
 863 /* Available with KVM_CAP_PPC_GET_SMMU_INFO */
 864 #define KVM_PPC_GET_SMMU_INFO     _IOR(KVMIO,  0xa6, struct kvm_ppc_smmu_info)
 865 /* Available with KVM_CAP_PPC_ALLOC_HTAB */
 866 #define KVM_PPC_ALLOCATE_HTAB     _IOWR(KVMIO, 0xa7, __u32)
 867 #define KVM_CREATE_SPAPR_TCE      _IOW(KVMIO,  0xa8, struct kvm_create_spapr_tce)
 868 /* Available with KVM_CAP_RMA */
 869 #define KVM_ALLOCATE_RMA          _IOR(KVMIO,  0xa9, struct kvm_allocate_rma)
 870 /* Available with KVM_CAP_PPC_HTAB_FD */
 871 #define KVM_PPC_GET_HTAB_FD       _IOW(KVMIO,  0xaa, struct kvm_get_htab_fd)
 872
 873 /*
 874  * ioctls for vcpu fds
 875  */
 876 #define KVM_RUN                   _IO(KVMIO,   0x80)
 877 #define KVM_GET_REGS              _IOR(KVMIO,  0x81, struct kvm_regs)
 878 #define KVM_SET_REGS              _IOW(KVMIO,  0x82, struct kvm_regs)
 879 #define KVM_GET_SREGS             _IOR(KVMIO,  0x83, struct kvm_sregs)
 880 #define KVM_SET_SREGS             _IOW(KVMIO,  0x84, struct kvm_sregs)
 881 #define KVM_TRANSLATE             _IOWR(KVMIO, 0x85, struct kvm_translation)
 882 #define KVM_INTERRUPT             _IOW(KVMIO,  0x86, struct kvm_interrupt)
 883 /* KVM_DEBUG_GUEST is no longer supported, use KVM_SET_GUEST_DEBUG instead */
 884 #define KVM_DEBUG_GUEST           __KVM_DEPRECATED_VCPU_W_0x87
 885 #define KVM_GET_MSRS              _IOWR(KVMIO, 0x88, struct kvm_msrs)
 886 #define KVM_SET_MSRS              _IOW(KVMIO,  0x89, struct kvm_msrs)
 887 #define KVM_SET_CPUID             _IOW(KVMIO,  0x8a, struct kvm_cpuid)
 888 #define KVM_SET_SIGNAL_MASK       _IOW(KVMIO,  0x8b, struct kvm_signal_mask)
 889 #define KVM_GET_FPU               _IOR(KVMIO,  0x8c, struct kvm_fpu)
 890 #define KVM_SET_FPU               _IOW(KVMIO,  0x8d, struct kvm_fpu)
 891 #define KVM_GET_LAPIC             _IOR(KVMIO,  0x8e, struct kvm_lapic_state)
 892 #define KVM_SET_LAPIC             _IOW(KVMIO,  0x8f, struct kvm_lapic_state)
 893 #define KVM_SET_CPUID2            _IOW(KVMIO,  0x90, struct kvm_cpuid2)
 894 #define KVM_GET_CPUID2            _IOWR(KVMIO, 0x91, struct kvm_cpuid2)
 895 /* Available with KVM_CAP_VAPIC */
 896 #define KVM_TPR_ACCESS_REPORTING  _IOWR(KVMIO, 0x92, struct kvm_tpr_access_ctl)
 897 /* Available with KVM_CAP_VAPIC */
 898 #define KVM_SET_VAPIC_ADDR        _IOW(KVMIO,  0x93, struct kvm_vapic_addr)
 899 /* valid for virtual machine (for floating interrupt)_and_ vcpu */
 900 #define KVM_S390_INTERRUPT        _IOW(KVMIO,  0x94, struct kvm_s390_interrupt)
 901 /* store status for s390 */
 902 #define KVM_S390_STORE_STATUS_NOADDR    (-1ul)
 903 #define KVM_S390_STORE_STATUS_PREFIXED  (-2ul)
 904 #define KVM_S390_STORE_STATUS     _IOW(KVMIO,  0x95, unsigned long)
 905 /* initial ipl psw for s390 */
 906 #define KVM_S390_SET_INITIAL_PSW  _IOW(KVMIO,  0x96, struct kvm_s390_psw)
 907 /* initial reset for s390 */
 908 #define KVM_S390_INITIAL_RESET    _IO(KVMIO,   0x97)
 909 #define KVM_GET_MP_STATE          _IOR(KVMIO,  0x98, struct kvm_mp_state)
 910 #define KVM_SET_MP_STATE          _IOW(KVMIO,  0x99, struct kvm_mp_state)
 911 /* Available with KVM_CAP_NMI */
 912 #define KVM_NMI                   _IO(KVMIO,   0x9a)
 913 /* Available with KVM_CAP_SET_GUEST_DEBUG */
 914 #define KVM_SET_GUEST_DEBUG       _IOW(KVMIO,  0x9b, struct kvm_guest_debug)
 915 /* MCE for x86 */
 916 #define KVM_X86_SETUP_MCE         _IOW(KVMIO,  0x9c, __u64)
 917 #define KVM_X86_GET_MCE_CAP_SUPPORTED _IOR(KVMIO,  0x9d, __u64)
 918 #define KVM_X86_SET_MCE           _IOW(KVMIO,  0x9e, struct kvm_x86_mce)
 919 /* IA64 stack access */
 920 #define KVM_IA64_VCPU_GET_STACK   _IOR(KVMIO,  0x9a, void *)
 921 #define KVM_IA64_VCPU_SET_STACK   _IOW(KVMIO,  0x9b, void *)
 922 /* Available with KVM_CAP_VCPU_EVENTS */
 923 #define KVM_GET_VCPU_EVENTS       _IOR(KVMIO,  0x9f, struct kvm_vcpu_events)
 924 #define KVM_SET_VCPU_EVENTS       _IOW(KVMIO,  0xa0, struct kvm_vcpu_events)
 925 /* Available with KVM_CAP_DEBUGREGS */
 926 #define KVM_GET_DEBUGREGS         _IOR(KVMIO,  0xa1, struct kvm_debugregs)
 927 #define KVM_SET_DEBUGREGS         _IOW(KVMIO,  0xa2, struct kvm_debugregs)
 928 #define KVM_ENABLE_CAP            _IOW(KVMIO,  0xa3, struct kvm_enable_cap)
 929 /* Available with KVM_CAP_XSAVE */
 930 #define KVM_GET_XSAVE             _IOR(KVMIO,  0xa4, struct kvm_xsave)
 931 #define KVM_SET_XSAVE             _IOW(KVMIO,  0xa5, struct kvm_xsave)
 932 /* Available with KVM_CAP_XCRS */
 933 #define KVM_GET_XCRS              _IOR(KVMIO,  0xa6, struct kvm_xcrs)
 934 #define KVM_SET_XCRS              _IOW(KVMIO,  0xa7, struct kvm_xcrs)
 935 /* Available with KVM_CAP_SW_TLB */
 936 #define KVM_DIRTY_TLB             _IOW(KVMIO,  0xaa, struct kvm_dirty_tlb)
 937 /* Available with KVM_CAP_ONE_REG */
 938 #define KVM_GET_ONE_REG           _IOW(KVMIO,  0xab, struct kvm_one_reg)
 939 #define KVM_SET_ONE_REG           _IOW(KVMIO,  0xac, struct kvm_one_reg)
 940 /* VM is being stopped by host */
 941 #define KVM_KVMCLOCK_CTRL         _IO(KVMIO,   0xad)
 942 #define KVM_ARM_VCPU_INIT         _IOW(KVMIO,  0xae, struct kvm_vcpu_init)
 943 #define KVM_GET_REG_LIST          _IOWR(KVMIO, 0xb0, struct kvm_reg_list)
 944
 945 #define KVM_DEV_ASSIGN_ENABLE_IOMMU     (1 << 0)
 946 #define KVM_DEV_ASSIGN_PCI_2_3          (1 << 1)
 947 #define KVM_DEV_ASSIGN_MASK_INTX        (1 << 2)
 948
 949 struct kvm_assigned_pci_dev {
 950         __u32 assigned_dev_id;
 951         __u32 busnr;
 952         __u32 devfn;
 953         __u32 flags;
 954         __u32 segnr;
 955         union {
 956                 __u32 reserved[11];
 957         };
 958 };
 959
 960 #define KVM_DEV_IRQ_HOST_INTX    (1 << 0)
 961 #define KVM_DEV_IRQ_HOST_MSI     (1 << 1)
 962 #define KVM_DEV_IRQ_HOST_MSIX    (1 << 2)
 963
 964 #define KVM_DEV_IRQ_GUEST_INTX   (1 << 8)
 965 #define KVM_DEV_IRQ_GUEST_MSI    (1 << 9)
 966 #define KVM_DEV_IRQ_GUEST_MSIX   (1 << 10)
 967
 968 #define KVM_DEV_IRQ_HOST_MASK    0x00ff
 969 #define KVM_DEV_IRQ_GUEST_MASK   0xff00
 970
 971 struct kvm_assigned_irq {
 972         __u32 assigned_dev_id;
 973         __u32 host_irq; /* ignored (legacy field) */
 974         __u32 guest_irq;
 975         __u32 flags;
 976         union {
 977                 __u32 reserved[12];
 978         };
 979 };
 980
 981 struct kvm_assigned_msix_nr {
 982         __u32 assigned_dev_id;
 983         __u16 entry_nr;
 984         __u16 padding;
 985 };
 986
 987 #define KVM_MAX_MSIX_PER_DEV            256
 988 struct kvm_assigned_msix_entry {
 989         __u32 assigned_dev_id;
 990         __u32 gsi;
 991         __u16 entry; /* The index of entry in the MSI-X table */
 992         __u16 padding[3];
 993 };
 994
 995 #endif /* __LINUX_KVM_H */