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kvm.h
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linux-6.19.14/include/uapi/linux/kvm.h
1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2#ifndef __LINUX_KVM_H 3#define __LINUX_KVM_H 4 5/* 6 * Userspace interface for /dev/kvm - kernel based virtual machine 7 * 8 * Note: you must update KVM_API_VERSION if you change this interface. 9 */ 10 11#include <linux/const.h> 12#include <linux/types.h> 13#include <linux/compiler.h> 14#include <linux/stddef.h> 15#include <linux/ioctl.h> 16#include <asm/kvm.h> 17 18#ifdef __KERNEL__ 19#include <linux/kvm_types.h> 20#endif 21 22#define KVM_API_VERSION 12 23 24/* 25 * Backwards-compatible definitions. 26 */ 27#define __KVM_HAVE_GUEST_DEBUG 28 29/* for KVM_SET_USER_MEMORY_REGION */ 30struct kvm_userspace_memory_region { 31 __u32 slot; 32 __u32 flags; 33 __u64 guest_phys_addr; 34 __u64 memory_size; /* bytes */ 35 __u64 userspace_addr; /* start of the userspace allocated memory */ 36}; 37 38/* for KVM_SET_USER_MEMORY_REGION2 */ 39struct kvm_userspace_memory_region2 { 40 __u32 slot; 41 __u32 flags; 42 __u64 guest_phys_addr; 43 __u64 memory_size; 44 __u64 userspace_addr; 45 __u64 guest_memfd_offset; 46 __u32 guest_memfd; 47 __u32 pad1; 48 __u64 pad2[14]; 49}; 50 51/* 52 * The bit 0 ~ bit 15 of kvm_userspace_memory_region::flags are visible for 53 * userspace, other bits are reserved for kvm internal use which are defined 54 * in include/linux/kvm_host.h. 55 */ 56#define KVM_MEM_LOG_DIRTY_PAGES (1UL << 0) 57#define KVM_MEM_READONLY (1UL << 1) 58#define KVM_MEM_GUEST_MEMFD (1UL << 2) 59 60/* for KVM_IRQ_LINE */ 61struct kvm_irq_level { 62 /* 63 * ACPI gsi notion of irq. 64 * For IA-64 (APIC model) IOAPIC0: irq 0-23; IOAPIC1: irq 24-47.. 65 * For X86 (standard AT mode) PIC0/1: irq 0-15. IOAPIC0: 0-23.. 66 * For ARM: See Documentation/virt/kvm/api.rst 67 */ 68 union { 69 __u32 irq; 70 __s32 status; 71 }; 72 __u32 level; 73}; 74 75 76struct kvm_irqchip { 77 __u32 chip_id; 78 __u32 pad; 79 union { 80 char dummy[512]; /* reserving space */ 81#ifdef __KVM_HAVE_PIT 82 struct kvm_pic_state pic; 83#endif 84#ifdef __KVM_HAVE_IOAPIC 85 struct kvm_ioapic_state ioapic; 86#endif 87 } chip; 88}; 89 90/* for KVM_CREATE_PIT2 */ 91struct kvm_pit_config { 92 __u32 flags; 93 __u32 pad[15]; 94}; 95 96#define KVM_PIT_SPEAKER_DUMMY 1 97 98struct kvm_hyperv_exit { 99#define KVM_EXIT_HYPERV_SYNIC 1 100#define KVM_EXIT_HYPERV_HCALL 2 101#define KVM_EXIT_HYPERV_SYNDBG 3 102 __u32 type; 103 __u32 pad1; 104 union { 105 struct { 106 __u32 msr; 107 __u32 pad2; 108 __u64 control; 109 __u64 evt_page; 110 __u64 msg_page; 111 } synic; 112 struct { 113 __u64 input; 114 __u64 result; 115 __u64 params[2]; 116 } hcall; 117 struct { 118 __u32 msr; 119 __u32 pad2; 120 __u64 control; 121 __u64 status; 122 __u64 send_page; 123 __u64 recv_page; 124 __u64 pending_page; 125 } syndbg; 126 } u; 127}; 128 129struct kvm_xen_exit { 130#define KVM_EXIT_XEN_HCALL 1 131 __u32 type; 132 union { 133 struct { 134 __u32 longmode; 135 __u32 cpl; 136 __u64 input; 137 __u64 result; 138 __u64 params[6]; 139 } hcall; 140 } u; 141}; 142 143#define KVM_S390_GET_SKEYS_NONE 1 144#define KVM_S390_SKEYS_MAX 1048576 145 146#define KVM_EXIT_UNKNOWN 0 147#define KVM_EXIT_EXCEPTION 1 148#define KVM_EXIT_IO 2 149#define KVM_EXIT_HYPERCALL 3 150#define KVM_EXIT_DEBUG 4 151#define KVM_EXIT_HLT 5 152#define KVM_EXIT_MMIO 6 153#define KVM_EXIT_IRQ_WINDOW_OPEN 7 154#define KVM_EXIT_SHUTDOWN 8 155#define KVM_EXIT_FAIL_ENTRY 9 156#define KVM_EXIT_INTR 10 157#define KVM_EXIT_SET_TPR 11 158#define KVM_EXIT_TPR_ACCESS 12 159#define KVM_EXIT_S390_SIEIC 13 160#define KVM_EXIT_S390_RESET 14 161#define KVM_EXIT_DCR 15 /* deprecated */ 162#define KVM_EXIT_NMI 16 163#define KVM_EXIT_INTERNAL_ERROR 17 164#define KVM_EXIT_OSI 18 165#define KVM_EXIT_PAPR_HCALL 19 166#define KVM_EXIT_S390_UCONTROL 20 167#define KVM_EXIT_WATCHDOG 21 168#define KVM_EXIT_S390_TSCH 22 169#define KVM_EXIT_EPR 23 170#define KVM_EXIT_SYSTEM_EVENT 24 171#define KVM_EXIT_S390_STSI 25 172#define KVM_EXIT_IOAPIC_EOI 26 173#define KVM_EXIT_HYPERV 27 174#define KVM_EXIT_ARM_NISV 28 175#define KVM_EXIT_X86_RDMSR 29 176#define KVM_EXIT_X86_WRMSR 30 177#define KVM_EXIT_DIRTY_RING_FULL 31 178#define KVM_EXIT_AP_RESET_HOLD 32 179#define KVM_EXIT_X86_BUS_LOCK 33 180#define KVM_EXIT_XEN 34 181#define KVM_EXIT_RISCV_SBI 35 182#define KVM_EXIT_RISCV_CSR 36 183#define KVM_EXIT_NOTIFY 37 184#define KVM_EXIT_LOONGARCH_IOCSR 38 185#define KVM_EXIT_MEMORY_FAULT 39 186#define KVM_EXIT_TDX 40 187#define KVM_EXIT_ARM_SEA 41 188 189/* For KVM_EXIT_INTERNAL_ERROR */ 190/* Emulate instruction failed. */ 191#define KVM_INTERNAL_ERROR_EMULATION 1 192/* Encounter unexpected simultaneous exceptions. */ 193#define KVM_INTERNAL_ERROR_SIMUL_EX 2 194/* Encounter unexpected vm-exit due to delivery event. */ 195#define KVM_INTERNAL_ERROR_DELIVERY_EV 3 196/* Encounter unexpected vm-exit reason */ 197#define KVM_INTERNAL_ERROR_UNEXPECTED_EXIT_REASON 4 198 199/* Flags that describe what fields in emulation_failure hold valid data. */ 200#define KVM_INTERNAL_ERROR_EMULATION_FLAG_INSTRUCTION_BYTES (1ULL << 0) 201 202/* 203 * struct kvm_run can be modified by userspace at any time, so KVM must be 204 * careful to avoid TOCTOU bugs. In order to protect KVM, HINT_UNSAFE_IN_KVM() 205 * renames fields in struct kvm_run from <symbol> to <symbol>__unsafe when 206 * compiled into the kernel, ensuring that any use within KVM is obvious and 207 * gets extra scrutiny. 208 */ 209#ifdef __KERNEL__ 210#define HINT_UNSAFE_IN_KVM(_symbol) _symbol##__unsafe 211#else 212#define HINT_UNSAFE_IN_KVM(_symbol) _symbol 213#endif 214 215/* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */ 216struct kvm_run { 217 /* in */ 218 __u8 request_interrupt_window; 219 __u8 HINT_UNSAFE_IN_KVM(immediate_exit); 220 __u8 padding1[6]; 221 222 /* out */ 223 __u32 exit_reason; 224 __u8 ready_for_interrupt_injection; 225 __u8 if_flag; 226 __u16 flags; 227 228 /* in (pre_kvm_run), out (post_kvm_run) */ 229 __u64 cr8; 230 __u64 apic_base; 231 232#ifdef __KVM_S390 233 /* the processor status word for s390 */ 234 __u64 psw_mask; /* psw upper half */ 235 __u64 psw_addr; /* psw lower half */ 236#endif 237 union { 238 /* KVM_EXIT_UNKNOWN */ 239 struct { 240 __u64 hardware_exit_reason; 241 } hw; 242 /* KVM_EXIT_FAIL_ENTRY */ 243 struct { 244 __u64 hardware_entry_failure_reason; 245 __u32 cpu; 246 } fail_entry; 247 /* KVM_EXIT_EXCEPTION */ 248 struct { 249 __u32 exception; 250 __u32 error_code; 251 } ex; 252 /* KVM_EXIT_IO */ 253 struct { 254#define KVM_EXIT_IO_IN 0 255#define KVM_EXIT_IO_OUT 1 256 __u8 direction; 257 __u8 size; /* bytes */ 258 __u16 port; 259 __u32 count; 260 __u64 data_offset; /* relative to kvm_run start */ 261 } io; 262 /* KVM_EXIT_DEBUG */ 263 struct { 264 struct kvm_debug_exit_arch arch; 265 } debug; 266 /* KVM_EXIT_MMIO */ 267 struct { 268 __u64 phys_addr; 269 __u8 data[8]; 270 __u32 len; 271 __u8 is_write; 272 } mmio; 273 /* KVM_EXIT_LOONGARCH_IOCSR */ 274 struct { 275 __u64 phys_addr; 276 __u8 data[8]; 277 __u32 len; 278 __u8 is_write; 279 } iocsr_io; 280 /* KVM_EXIT_HYPERCALL */ 281 struct { 282 __u64 nr; 283 __u64 args[6]; 284 __u64 ret; 285 286 union { 287#ifndef __KERNEL__ 288 __u32 longmode; 289#endif 290 __u64 flags; 291 }; 292 } hypercall; 293 /* KVM_EXIT_TPR_ACCESS */ 294 struct { 295 __u64 rip; 296 __u32 is_write; 297 __u32 pad; 298 } tpr_access; 299 /* KVM_EXIT_S390_SIEIC */ 300 struct { 301 __u8 icptcode; 302 __u16 ipa; 303 __u32 ipb; 304 } s390_sieic; 305 /* KVM_EXIT_S390_RESET */ 306 __u64 s390_reset_flags; 307 /* KVM_EXIT_S390_UCONTROL */ 308 struct { 309 __u64 trans_exc_code; 310 __u32 pgm_code; 311 } s390_ucontrol; 312 /* KVM_EXIT_DCR (deprecated) */ 313 struct { 314 __u32 dcrn; 315 __u32 data; 316 __u8 is_write; 317 } dcr; 318 /* KVM_EXIT_INTERNAL_ERROR */ 319 struct { 320 __u32 suberror; 321 /* Available with KVM_CAP_INTERNAL_ERROR_DATA: */ 322 __u32 ndata; 323 __u64 data[16]; 324 } internal; 325 /* 326 * KVM_INTERNAL_ERROR_EMULATION 327 * 328 * "struct emulation_failure" is an overlay of "struct internal" 329 * that is used for the KVM_INTERNAL_ERROR_EMULATION sub-type of 330 * KVM_EXIT_INTERNAL_ERROR. Note, unlike other internal error 331 * sub-types, this struct is ABI! It also needs to be backwards 332 * compatible with "struct internal". Take special care that 333 * "ndata" is correct, that new fields are enumerated in "flags", 334 * and that each flag enumerates fields that are 64-bit aligned 335 * and sized (so that ndata+internal.data[] is valid/accurate). 336 * 337 * Space beyond the defined fields may be used to store arbitrary 338 * debug information relating to the emulation failure. It is 339 * accounted for in "ndata" but the format is unspecified and is 340 * not represented in "flags". Any such information is *not* ABI! 341 */ 342 struct { 343 __u32 suberror; 344 __u32 ndata; 345 __u64 flags; 346 union { 347 struct { 348 __u8 insn_size; 349 __u8 insn_bytes[15]; 350 }; 351 }; 352 /* Arbitrary debug data may follow. */ 353 } emulation_failure; 354 /* KVM_EXIT_OSI */ 355 struct { 356 __u64 gprs[32]; 357 } osi; 358 /* KVM_EXIT_PAPR_HCALL */ 359 struct { 360 __u64 nr; 361 __u64 ret; 362 __u64 args[9]; 363 } papr_hcall; 364 /* KVM_EXIT_S390_TSCH */ 365 struct { 366 __u16 subchannel_id; 367 __u16 subchannel_nr; 368 __u32 io_int_parm; 369 __u32 io_int_word; 370 __u32 ipb; 371 __u8 dequeued; 372 } s390_tsch; 373 /* KVM_EXIT_EPR */ 374 struct { 375 __u32 epr; 376 } epr; 377 /* KVM_EXIT_SYSTEM_EVENT */ 378 struct { 379#define KVM_SYSTEM_EVENT_SHUTDOWN 1 380#define KVM_SYSTEM_EVENT_RESET 2 381#define KVM_SYSTEM_EVENT_CRASH 3 382#define KVM_SYSTEM_EVENT_WAKEUP 4 383#define KVM_SYSTEM_EVENT_SUSPEND 5 384#define KVM_SYSTEM_EVENT_SEV_TERM 6 385#define KVM_SYSTEM_EVENT_TDX_FATAL 7 386 __u32 type; 387 __u32 ndata; 388 union { 389#ifndef __KERNEL__ 390 __u64 flags; 391#endif 392 __u64 data[16]; 393 }; 394 } system_event; 395 /* KVM_EXIT_S390_STSI */ 396 struct { 397 __u64 addr; 398 __u8 ar; 399 __u8 reserved; 400 __u8 fc; 401 __u8 sel1; 402 __u16 sel2; 403 } s390_stsi; 404 /* KVM_EXIT_IOAPIC_EOI */ 405 struct { 406 __u8 vector; 407 } eoi; 408 /* KVM_EXIT_HYPERV */ 409 struct kvm_hyperv_exit hyperv; 410 /* KVM_EXIT_ARM_NISV */ 411 struct { 412 __u64 esr_iss; 413 __u64 fault_ipa; 414 } arm_nisv; 415 /* KVM_EXIT_X86_RDMSR / KVM_EXIT_X86_WRMSR */ 416 struct { 417 __u8 error; /* user -> kernel */ 418 __u8 pad[7]; 419#define KVM_MSR_EXIT_REASON_INVAL (1 << 0) 420#define KVM_MSR_EXIT_REASON_UNKNOWN (1 << 1) 421#define KVM_MSR_EXIT_REASON_FILTER (1 << 2) 422#define KVM_MSR_EXIT_REASON_VALID_MASK (KVM_MSR_EXIT_REASON_INVAL | \ 423 KVM_MSR_EXIT_REASON_UNKNOWN | \ 424 KVM_MSR_EXIT_REASON_FILTER) 425 __u32 reason; /* kernel -> user */ 426 __u32 index; /* kernel -> user */ 427 __u64 data; /* kernel <-> user */ 428 } msr; 429 /* KVM_EXIT_XEN */ 430 struct kvm_xen_exit xen; 431 /* KVM_EXIT_RISCV_SBI */ 432 struct { 433 unsigned long extension_id; 434 unsigned long function_id; 435 unsigned long args[6]; 436 unsigned long ret[2]; 437 } riscv_sbi; 438 /* KVM_EXIT_RISCV_CSR */ 439 struct { 440 unsigned long csr_num; 441 unsigned long new_value; 442 unsigned long write_mask; 443 unsigned long ret_value; 444 } riscv_csr; 445 /* KVM_EXIT_NOTIFY */ 446 struct { 447#define KVM_NOTIFY_CONTEXT_INVALID (1 << 0) 448 __u32 flags; 449 } notify; 450 /* KVM_EXIT_MEMORY_FAULT */ 451 struct { 452#define KVM_MEMORY_EXIT_FLAG_PRIVATE (1ULL << 3) 453 __u64 flags; 454 __u64 gpa; 455 __u64 size; 456 } memory_fault; 457 /* KVM_EXIT_TDX */ 458 struct { 459 __u64 flags; 460 __u64 nr; 461 union { 462 struct { 463 __u64 ret; 464 __u64 data[5]; 465 } unknown; 466 struct { 467 __u64 ret; 468 __u64 gpa; 469 __u64 size; 470 } get_quote; 471 struct { 472 __u64 ret; 473 __u64 leaf; 474 __u64 r11, r12, r13, r14; 475 } get_tdvmcall_info; 476 struct { 477 __u64 ret; 478 __u64 vector; 479 } setup_event_notify; 480 }; 481 } tdx; 482 /* KVM_EXIT_ARM_SEA */ 483 struct { 484#define KVM_EXIT_ARM_SEA_FLAG_GPA_VALID (1ULL << 0) 485 __u64 flags; 486 __u64 esr; 487 __u64 gva; 488 __u64 gpa; 489 } arm_sea; 490 /* Fix the size of the union. */ 491 char padding[256]; 492 }; 493 494 /* 2048 is the size of the char array used to bound/pad the size 495 * of the union that holds sync regs. 496 */ 497 #define SYNC_REGS_SIZE_BYTES 2048 498 /* 499 * shared registers between kvm and userspace. 500 * kvm_valid_regs specifies the register classes set by the host 501 * kvm_dirty_regs specified the register classes dirtied by userspace 502 * struct kvm_sync_regs is architecture specific, as well as the 503 * bits for kvm_valid_regs and kvm_dirty_regs 504 */ 505 __u64 kvm_valid_regs; 506 __u64 kvm_dirty_regs; 507 union { 508 struct kvm_sync_regs regs; 509 char padding[SYNC_REGS_SIZE_BYTES]; 510 } s; 511}; 512 513/* for KVM_REGISTER_COALESCED_MMIO / KVM_UNREGISTER_COALESCED_MMIO */ 514 515struct kvm_coalesced_mmio_zone { 516 __u64 addr; 517 __u32 size; 518 union { 519 __u32 pad; 520 __u32 pio; 521 }; 522}; 523 524struct kvm_coalesced_mmio { 525 __u64 phys_addr; 526 __u32 len; 527 union { 528 __u32 pad; 529 __u32 pio; 530 }; 531 __u8 data[8]; 532}; 533 534struct kvm_coalesced_mmio_ring { 535 __u32 first, last; 536 __DECLARE_FLEX_ARRAY(struct kvm_coalesced_mmio, coalesced_mmio); 537}; 538 539#define KVM_COALESCED_MMIO_MAX \ 540 ((PAGE_SIZE - sizeof(struct kvm_coalesced_mmio_ring)) / \ 541 sizeof(struct kvm_coalesced_mmio)) 542 543/* for KVM_TRANSLATE */ 544struct kvm_translation { 545 /* in */ 546 __u64 linear_address; 547 548 /* out */ 549 __u64 physical_address; 550 __u8 valid; 551 __u8 writeable; 552 __u8 usermode; 553 __u8 pad[5]; 554}; 555 556/* for KVM_INTERRUPT */ 557struct kvm_interrupt { 558 /* in */ 559 __u32 irq; 560}; 561 562/* for KVM_GET_DIRTY_LOG */ 563struct kvm_dirty_log { 564 __u32 slot; 565 __u32 padding1; 566 union { 567 void __user *dirty_bitmap; /* one bit per page */ 568 __u64 padding2; 569 }; 570}; 571 572/* for KVM_CLEAR_DIRTY_LOG */ 573struct kvm_clear_dirty_log { 574 __u32 slot; 575 __u32 num_pages; 576 __u64 first_page; 577 union { 578 void __user *dirty_bitmap; /* one bit per page */ 579 __u64 padding2; 580 }; 581}; 582 583/* for KVM_SET_SIGNAL_MASK */ 584struct kvm_signal_mask { 585 __u32 len; 586 __DECLARE_FLEX_ARRAY(__u8, sigset); 587}; 588 589/* for KVM_TPR_ACCESS_REPORTING */ 590struct kvm_tpr_access_ctl { 591 __u32 enabled; 592 __u32 flags; 593 __u32 reserved[8]; 594}; 595 596/* for KVM_SET_VAPIC_ADDR */ 597struct kvm_vapic_addr { 598 __u64 vapic_addr; 599}; 600 601/* for KVM_SET_MP_STATE */ 602 603/* not all states are valid on all architectures */ 604#define KVM_MP_STATE_RUNNABLE 0 605#define KVM_MP_STATE_UNINITIALIZED 1 606#define KVM_MP_STATE_INIT_RECEIVED 2 607#define KVM_MP_STATE_HALTED 3 608#define KVM_MP_STATE_SIPI_RECEIVED 4 609#define KVM_MP_STATE_STOPPED 5 610#define KVM_MP_STATE_CHECK_STOP 6 611#define KVM_MP_STATE_OPERATING 7 612#define KVM_MP_STATE_LOAD 8 613#define KVM_MP_STATE_AP_RESET_HOLD 9 614#define KVM_MP_STATE_SUSPENDED 10 615 616struct kvm_mp_state { 617 __u32 mp_state; 618}; 619 620/* for KVM_SET_GUEST_DEBUG */ 621 622#define KVM_GUESTDBG_ENABLE 0x00000001 623#define KVM_GUESTDBG_SINGLESTEP 0x00000002 624 625struct kvm_guest_debug { 626 __u32 control; 627 __u32 pad; 628 struct kvm_guest_debug_arch arch; 629}; 630 631enum { 632 kvm_ioeventfd_flag_nr_datamatch, 633 kvm_ioeventfd_flag_nr_pio, 634 kvm_ioeventfd_flag_nr_deassign, 635 kvm_ioeventfd_flag_nr_virtio_ccw_notify, 636 kvm_ioeventfd_flag_nr_fast_mmio, 637 kvm_ioeventfd_flag_nr_max, 638}; 639 640#define KVM_IOEVENTFD_FLAG_DATAMATCH (1 << kvm_ioeventfd_flag_nr_datamatch) 641#define KVM_IOEVENTFD_FLAG_PIO (1 << kvm_ioeventfd_flag_nr_pio) 642#define KVM_IOEVENTFD_FLAG_DEASSIGN (1 << kvm_ioeventfd_flag_nr_deassign) 643#define KVM_IOEVENTFD_FLAG_VIRTIO_CCW_NOTIFY \ 644 (1 << kvm_ioeventfd_flag_nr_virtio_ccw_notify) 645 646#define KVM_IOEVENTFD_VALID_FLAG_MASK ((1 << kvm_ioeventfd_flag_nr_max) - 1) 647 648struct kvm_ioeventfd { 649 __u64 datamatch; 650 __u64 addr; /* legal pio/mmio address */ 651 __u32 len; /* 1, 2, 4, or 8 bytes; or 0 to ignore length */ 652 __s32 fd; 653 __u32 flags; 654 __u8 pad[36]; 655}; 656 657#define KVM_X86_DISABLE_EXITS_MWAIT (1 << 0) 658#define KVM_X86_DISABLE_EXITS_HLT (1 << 1) 659#define KVM_X86_DISABLE_EXITS_PAUSE (1 << 2) 660#define KVM_X86_DISABLE_EXITS_CSTATE (1 << 3) 661#define KVM_X86_DISABLE_EXITS_APERFMPERF (1 << 4) 662 663/* for KVM_ENABLE_CAP */ 664struct kvm_enable_cap { 665 /* in */ 666 __u32 cap; 667 __u32 flags; 668 __u64 args[4]; 669 __u8 pad[64]; 670}; 671 672#define KVMIO 0xAE 673 674/* machine type bits, to be used as argument to KVM_CREATE_VM */ 675#define KVM_VM_S390_UCONTROL 1 676 677/* on ppc, 0 indicate default, 1 should force HV and 2 PR */ 678#define KVM_VM_PPC_HV 1 679#define KVM_VM_PPC_PR 2 680 681/* on MIPS, 0 indicates auto, 1 forces VZ ASE, 2 forces trap & emulate */ 682#define KVM_VM_MIPS_AUTO 0 683#define KVM_VM_MIPS_VZ 1 684#define KVM_VM_MIPS_TE 2 685 686#define KVM_S390_SIE_PAGE_OFFSET 1 687 688/* 689 * On arm64, machine type can be used to request the physical 690 * address size for the VM. Bits[7-0] are reserved for the guest 691 * PA size shift (i.e, log2(PA_Size)). For backward compatibility, 692 * value 0 implies the default IPA size, 40bits. 693 */ 694#define KVM_VM_TYPE_ARM_IPA_SIZE_MASK 0xffULL 695#define KVM_VM_TYPE_ARM_IPA_SIZE(x) \ 696 ((x) & KVM_VM_TYPE_ARM_IPA_SIZE_MASK) 697/* 698 * ioctls for /dev/kvm fds: 699 */ 700#define KVM_GET_API_VERSION _IO(KVMIO, 0x00) 701#define KVM_CREATE_VM _IO(KVMIO, 0x01) /* returns a VM fd */ 702#define KVM_GET_MSR_INDEX_LIST _IOWR(KVMIO, 0x02, struct kvm_msr_list) 703 704#define KVM_S390_ENABLE_SIE _IO(KVMIO, 0x06) 705/* 706 * Check if a kvm extension is available. Argument is extension number, 707 * return is 1 (yes) or 0 (no, sorry). 708 */ 709#define KVM_CHECK_EXTENSION _IO(KVMIO, 0x03) 710/* 711 * Get size for mmap(vcpu_fd) 712 */ 713#define KVM_GET_VCPU_MMAP_SIZE _IO(KVMIO, 0x04) /* in bytes */ 714#define KVM_GET_SUPPORTED_CPUID _IOWR(KVMIO, 0x05, struct kvm_cpuid2) 715#define KVM_GET_EMULATED_CPUID _IOWR(KVMIO, 0x09, struct kvm_cpuid2) 716#define KVM_GET_MSR_FEATURE_INDEX_LIST _IOWR(KVMIO, 0x0a, struct kvm_msr_list) 717 718/* 719 * Extension capability list. 720 */ 721#define KVM_CAP_IRQCHIP 0 722#define KVM_CAP_HLT 1 723#define KVM_CAP_MMU_SHADOW_CACHE_CONTROL 2 724#define KVM_CAP_USER_MEMORY 3 725#define KVM_CAP_SET_TSS_ADDR 4 726#define KVM_CAP_VAPIC 6 727#define KVM_CAP_EXT_CPUID 7 728#define KVM_CAP_CLOCKSOURCE 8 729#define KVM_CAP_NR_VCPUS 9 /* returns recommended max vcpus per vm */ 730#define KVM_CAP_NR_MEMSLOTS 10 /* returns max memory slots per vm */ 731#define KVM_CAP_PIT 11 732#define KVM_CAP_NOP_IO_DELAY 12 733#define KVM_CAP_PV_MMU 13 734#define KVM_CAP_MP_STATE 14 735#define KVM_CAP_COALESCED_MMIO 15 736#define KVM_CAP_SYNC_MMU 16 /* Changes to host mmap are reflected in guest */ 737#define KVM_CAP_IOMMU 18 738/* Bug in KVM_SET_USER_MEMORY_REGION fixed: */ 739#define KVM_CAP_DESTROY_MEMORY_REGION_WORKS 21 740#define KVM_CAP_USER_NMI 22 741#define KVM_CAP_SET_GUEST_DEBUG 23 742#ifdef __KVM_HAVE_PIT 743#define KVM_CAP_REINJECT_CONTROL 24 744#endif 745#define KVM_CAP_IRQ_ROUTING 25 746#define KVM_CAP_IRQ_INJECT_STATUS 26 747#define KVM_CAP_ASSIGN_DEV_IRQ 29 748/* Another bug in KVM_SET_USER_MEMORY_REGION fixed: */ 749#define KVM_CAP_JOIN_MEMORY_REGIONS_WORKS 30 750#ifdef __KVM_HAVE_MCE 751#define KVM_CAP_MCE 31 752#endif 753#define KVM_CAP_IRQFD 32 754#ifdef __KVM_HAVE_PIT 755#define KVM_CAP_PIT2 33 756#endif 757#define KVM_CAP_SET_BOOT_CPU_ID 34 758#ifdef __KVM_HAVE_PIT_STATE2 759#define KVM_CAP_PIT_STATE2 35 760#endif 761#define KVM_CAP_IOEVENTFD 36 762#define KVM_CAP_SET_IDENTITY_MAP_ADDR 37 763#ifdef __KVM_HAVE_XEN_HVM 764#define KVM_CAP_XEN_HVM 38 765#endif 766#define KVM_CAP_ADJUST_CLOCK 39 767#define KVM_CAP_INTERNAL_ERROR_DATA 40 768#ifdef __KVM_HAVE_VCPU_EVENTS 769#define KVM_CAP_VCPU_EVENTS 41 770#endif 771#define KVM_CAP_S390_PSW 42 772#define KVM_CAP_PPC_SEGSTATE 43 773#define KVM_CAP_HYPERV 44 774#define KVM_CAP_HYPERV_VAPIC 45 775#define KVM_CAP_HYPERV_SPIN 46 776#define KVM_CAP_PCI_SEGMENT 47 777#define KVM_CAP_PPC_PAIRED_SINGLES 48 778#define KVM_CAP_INTR_SHADOW 49 779#ifdef __KVM_HAVE_DEBUGREGS 780#define KVM_CAP_DEBUGREGS 50 781#endif 782#define KVM_CAP_X86_ROBUST_SINGLESTEP 51 783#define KVM_CAP_PPC_OSI 52 784#define KVM_CAP_PPC_UNSET_IRQ 53 785#define KVM_CAP_ENABLE_CAP 54 786#ifdef __KVM_HAVE_XSAVE 787#define KVM_CAP_XSAVE 55 788#endif 789#ifdef __KVM_HAVE_XCRS 790#define KVM_CAP_XCRS 56 791#endif 792#define KVM_CAP_PPC_GET_PVINFO 57 793#define KVM_CAP_PPC_IRQ_LEVEL 58 794#define KVM_CAP_ASYNC_PF 59 795#define KVM_CAP_TSC_CONTROL 60 796#define KVM_CAP_GET_TSC_KHZ 61 797#define KVM_CAP_PPC_BOOKE_SREGS 62 798#define KVM_CAP_SPAPR_TCE 63 799#define KVM_CAP_PPC_SMT 64 800#define KVM_CAP_PPC_RMA 65 801#define KVM_CAP_MAX_VCPUS 66 /* returns max vcpus per vm */ 802#define KVM_CAP_PPC_HIOR 67 803#define KVM_CAP_PPC_PAPR 68 804#define KVM_CAP_SW_TLB 69 805#define KVM_CAP_ONE_REG 70 806#define KVM_CAP_S390_GMAP 71 807#define KVM_CAP_TSC_DEADLINE_TIMER 72 808#define KVM_CAP_S390_UCONTROL 73 809#define KVM_CAP_SYNC_REGS 74 810#define KVM_CAP_PCI_2_3 75 811#define KVM_CAP_KVMCLOCK_CTRL 76 812#define KVM_CAP_SIGNAL_MSI 77 813#define KVM_CAP_PPC_GET_SMMU_INFO 78 814#define KVM_CAP_S390_COW 79 815#define KVM_CAP_PPC_ALLOC_HTAB 80 816#define KVM_CAP_READONLY_MEM 81 817#define KVM_CAP_IRQFD_RESAMPLE 82 818#define KVM_CAP_PPC_BOOKE_WATCHDOG 83 819#define KVM_CAP_PPC_HTAB_FD 84 820#define KVM_CAP_S390_CSS_SUPPORT 85 821#define KVM_CAP_PPC_EPR 86 822#define KVM_CAP_ARM_PSCI 87 823#define KVM_CAP_ARM_SET_DEVICE_ADDR 88 824#define KVM_CAP_DEVICE_CTRL 89 825#define KVM_CAP_IRQ_MPIC 90 826#define KVM_CAP_PPC_RTAS 91 827#define KVM_CAP_IRQ_XICS 92 828#define KVM_CAP_ARM_EL1_32BIT 93 829#define KVM_CAP_SPAPR_MULTITCE 94 830#define KVM_CAP_EXT_EMUL_CPUID 95 831#define KVM_CAP_HYPERV_TIME 96 832#define KVM_CAP_IOAPIC_POLARITY_IGNORED 97 833#define KVM_CAP_ENABLE_CAP_VM 98 834#define KVM_CAP_S390_IRQCHIP 99 835#define KVM_CAP_IOEVENTFD_NO_LENGTH 100 836#define KVM_CAP_VM_ATTRIBUTES 101 837#define KVM_CAP_ARM_PSCI_0_2 102 838#define KVM_CAP_PPC_FIXUP_HCALL 103 839#define KVM_CAP_PPC_ENABLE_HCALL 104 840#define KVM_CAP_CHECK_EXTENSION_VM 105 841#define KVM_CAP_S390_USER_SIGP 106 842#define KVM_CAP_S390_VECTOR_REGISTERS 107 843#define KVM_CAP_S390_MEM_OP 108 844#define KVM_CAP_S390_USER_STSI 109 845#define KVM_CAP_S390_SKEYS 110 846#define KVM_CAP_MIPS_FPU 111 847#define KVM_CAP_MIPS_MSA 112 848#define KVM_CAP_S390_INJECT_IRQ 113 849#define KVM_CAP_S390_IRQ_STATE 114 850#define KVM_CAP_PPC_HWRNG 115 851#define KVM_CAP_DISABLE_QUIRKS 116 852#define KVM_CAP_X86_SMM 117 853#define KVM_CAP_MULTI_ADDRESS_SPACE 118 854#define KVM_CAP_GUEST_DEBUG_HW_BPS 119 855#define KVM_CAP_GUEST_DEBUG_HW_WPS 120 856#define KVM_CAP_SPLIT_IRQCHIP 121 857#define KVM_CAP_IOEVENTFD_ANY_LENGTH 122 858#define KVM_CAP_HYPERV_SYNIC 123 859#define KVM_CAP_S390_RI 124 860#define KVM_CAP_SPAPR_TCE_64 125 861#define KVM_CAP_ARM_PMU_V3 126 862#define KVM_CAP_VCPU_ATTRIBUTES 127 863#define KVM_CAP_MAX_VCPU_ID 128 864#define KVM_CAP_X2APIC_API 129 865#define KVM_CAP_S390_USER_INSTR0 130 866#define KVM_CAP_MSI_DEVID 131 867#define KVM_CAP_PPC_HTM 132 868#define KVM_CAP_SPAPR_RESIZE_HPT 133 869#define KVM_CAP_PPC_MMU_RADIX 134 870#define KVM_CAP_PPC_MMU_HASH_V3 135 871#define KVM_CAP_IMMEDIATE_EXIT 136 872#define KVM_CAP_MIPS_VZ 137 873#define KVM_CAP_MIPS_TE 138 874#define KVM_CAP_MIPS_64BIT 139 875#define KVM_CAP_S390_GS 140 876#define KVM_CAP_S390_AIS 141 877#define KVM_CAP_SPAPR_TCE_VFIO 142 878#define KVM_CAP_X86_DISABLE_EXITS 143 879#define KVM_CAP_ARM_USER_IRQ 144 880#define KVM_CAP_S390_CMMA_MIGRATION 145 881#define KVM_CAP_PPC_FWNMI 146 882#define KVM_CAP_PPC_SMT_POSSIBLE 147 883#define KVM_CAP_HYPERV_SYNIC2 148 884#define KVM_CAP_HYPERV_VP_INDEX 149 885#define KVM_CAP_S390_AIS_MIGRATION 150 886#define KVM_CAP_PPC_GET_CPU_CHAR 151 887#define KVM_CAP_S390_BPB 152 888#define KVM_CAP_GET_MSR_FEATURES 153 889#define KVM_CAP_HYPERV_EVENTFD 154 890#define KVM_CAP_HYPERV_TLBFLUSH 155 891#define KVM_CAP_S390_HPAGE_1M 156 892#define KVM_CAP_NESTED_STATE 157 893#define KVM_CAP_ARM_INJECT_SERROR_ESR 158 894#define KVM_CAP_MSR_PLATFORM_INFO 159 895#define KVM_CAP_PPC_NESTED_HV 160 896#define KVM_CAP_HYPERV_SEND_IPI 161 897#define KVM_CAP_COALESCED_PIO 162 898#define KVM_CAP_HYPERV_ENLIGHTENED_VMCS 163 899#define KVM_CAP_EXCEPTION_PAYLOAD 164 900#define KVM_CAP_ARM_VM_IPA_SIZE 165 901#define KVM_CAP_MANUAL_DIRTY_LOG_PROTECT 166 /* Obsolete */ 902#define KVM_CAP_HYPERV_CPUID 167 903#define KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2 168 904#define KVM_CAP_PPC_IRQ_XIVE 169 905#define KVM_CAP_ARM_SVE 170 906#define KVM_CAP_ARM_PTRAUTH_ADDRESS 171 907#define KVM_CAP_ARM_PTRAUTH_GENERIC 172 908#define KVM_CAP_PMU_EVENT_FILTER 173 909#define KVM_CAP_ARM_IRQ_LINE_LAYOUT_2 174 910#define KVM_CAP_HYPERV_DIRECT_TLBFLUSH 175 911#define KVM_CAP_PPC_GUEST_DEBUG_SSTEP 176 912#define KVM_CAP_ARM_NISV_TO_USER 177 913#define KVM_CAP_ARM_INJECT_EXT_DABT 178 914#define KVM_CAP_S390_VCPU_RESETS 179 915#define KVM_CAP_S390_PROTECTED 180 916#define KVM_CAP_PPC_SECURE_GUEST 181 917#define KVM_CAP_HALT_POLL 182 918#define KVM_CAP_ASYNC_PF_INT 183 919#define KVM_CAP_LAST_CPU 184 920#define KVM_CAP_SMALLER_MAXPHYADDR 185 921#define KVM_CAP_S390_DIAG318 186 922#define KVM_CAP_STEAL_TIME 187 923#define KVM_CAP_X86_USER_SPACE_MSR 188 924#define KVM_CAP_X86_MSR_FILTER 189 925#define KVM_CAP_ENFORCE_PV_FEATURE_CPUID 190 926#define KVM_CAP_SYS_HYPERV_CPUID 191 927#define KVM_CAP_DIRTY_LOG_RING 192 928#define KVM_CAP_X86_BUS_LOCK_EXIT 193 929#define KVM_CAP_PPC_DAWR1 194 930#define KVM_CAP_SET_GUEST_DEBUG2 195 931#define KVM_CAP_SGX_ATTRIBUTE 196 932#define KVM_CAP_VM_COPY_ENC_CONTEXT_FROM 197 933#define KVM_CAP_PTP_KVM 198 934#define KVM_CAP_HYPERV_ENFORCE_CPUID 199 935#define KVM_CAP_SREGS2 200 936#define KVM_CAP_EXIT_HYPERCALL 201 937#define KVM_CAP_PPC_RPT_INVALIDATE 202 938#define KVM_CAP_BINARY_STATS_FD 203 939#define KVM_CAP_EXIT_ON_EMULATION_FAILURE 204 940#define KVM_CAP_ARM_MTE 205 941#define KVM_CAP_VM_MOVE_ENC_CONTEXT_FROM 206 942#define KVM_CAP_VM_GPA_BITS 207 943#define KVM_CAP_XSAVE2 208 944#define KVM_CAP_SYS_ATTRIBUTES 209 945#define KVM_CAP_PPC_AIL_MODE_3 210 946#define KVM_CAP_S390_MEM_OP_EXTENSION 211 947#define KVM_CAP_PMU_CAPABILITY 212 948#define KVM_CAP_DISABLE_QUIRKS2 213 949#define KVM_CAP_VM_TSC_CONTROL 214 950#define KVM_CAP_SYSTEM_EVENT_DATA 215 951#define KVM_CAP_ARM_SYSTEM_SUSPEND 216 952#define KVM_CAP_S390_PROTECTED_DUMP 217 953#define KVM_CAP_X86_TRIPLE_FAULT_EVENT 218 954#define KVM_CAP_X86_NOTIFY_VMEXIT 219 955#define KVM_CAP_VM_DISABLE_NX_HUGE_PAGES 220 956#define KVM_CAP_S390_ZPCI_OP 221 957#define KVM_CAP_S390_CPU_TOPOLOGY 222 958#define KVM_CAP_DIRTY_LOG_RING_ACQ_REL 223 959#define KVM_CAP_S390_PROTECTED_ASYNC_DISABLE 224 960#define KVM_CAP_DIRTY_LOG_RING_WITH_BITMAP 225 961#define KVM_CAP_PMU_EVENT_MASKED_EVENTS 226 962#define KVM_CAP_COUNTER_OFFSET 227 963#define KVM_CAP_ARM_EAGER_SPLIT_CHUNK_SIZE 228 964#define KVM_CAP_ARM_SUPPORTED_BLOCK_SIZES 229 965#define KVM_CAP_ARM_SUPPORTED_REG_MASK_RANGES 230 966#define KVM_CAP_USER_MEMORY2 231 967#define KVM_CAP_MEMORY_FAULT_INFO 232 968#define KVM_CAP_MEMORY_ATTRIBUTES 233 969#define KVM_CAP_GUEST_MEMFD 234 970#define KVM_CAP_VM_TYPES 235 971#define KVM_CAP_PRE_FAULT_MEMORY 236 972#define KVM_CAP_X86_APIC_BUS_CYCLES_NS 237 973#define KVM_CAP_X86_GUEST_MODE 238 974#define KVM_CAP_ARM_WRITABLE_IMP_ID_REGS 239 975#define KVM_CAP_ARM_EL2 240 976#define KVM_CAP_ARM_EL2_E2H0 241 977#define KVM_CAP_RISCV_MP_STATE_RESET 242 978#define KVM_CAP_ARM_CACHEABLE_PFNMAP_SUPPORTED 243 979#define KVM_CAP_GUEST_MEMFD_FLAGS 244 980#define KVM_CAP_ARM_SEA_TO_USER 245 981#define KVM_CAP_S390_USER_OPEREXEC 246 982 983struct kvm_irq_routing_irqchip { 984 __u32 irqchip; 985 __u32 pin; 986}; 987 988struct kvm_irq_routing_msi { 989 __u32 address_lo; 990 __u32 address_hi; 991 __u32 data; 992 union { 993 __u32 pad; 994 __u32 devid; 995 }; 996}; 997 998struct kvm_irq_routing_s390_adapter { 999 __u64 ind_addr; 1000 __u64 summary_addr; 1001 __u64 ind_offset; 1002 __u32 summary_offset; 1003 __u32 adapter_id; 1004}; 1005 1006struct kvm_irq_routing_hv_sint { 1007 __u32 vcpu; 1008 __u32 sint; 1009}; 1010 1011struct kvm_irq_routing_xen_evtchn { 1012 __u32 port; 1013 __u32 vcpu; 1014 __u32 priority; 1015}; 1016 1017#define KVM_IRQ_ROUTING_XEN_EVTCHN_PRIO_2LEVEL ((__u32)(-1)) 1018 1019/* gsi routing entry types */ 1020#define KVM_IRQ_ROUTING_IRQCHIP 1 1021#define KVM_IRQ_ROUTING_MSI 2 1022#define KVM_IRQ_ROUTING_S390_ADAPTER 3 1023#define KVM_IRQ_ROUTING_HV_SINT 4 1024#define KVM_IRQ_ROUTING_XEN_EVTCHN 5 1025 1026struct kvm_irq_routing_entry { 1027 __u32 gsi; 1028 __u32 type; 1029 __u32 flags; 1030 __u32 pad; 1031 union { 1032 struct kvm_irq_routing_irqchip irqchip; 1033 struct kvm_irq_routing_msi msi; 1034 struct kvm_irq_routing_s390_adapter adapter; 1035 struct kvm_irq_routing_hv_sint hv_sint; 1036 struct kvm_irq_routing_xen_evtchn xen_evtchn; 1037 __u32 pad[8]; 1038 } u; 1039}; 1040 1041struct kvm_irq_routing { 1042 __u32 nr; 1043 __u32 flags; 1044 __DECLARE_FLEX_ARRAY(struct kvm_irq_routing_entry, entries); 1045}; 1046 1047#define KVM_IRQFD_FLAG_DEASSIGN (1 << 0) 1048/* 1049 * Available with KVM_CAP_IRQFD_RESAMPLE 1050 * 1051 * KVM_IRQFD_FLAG_RESAMPLE indicates resamplefd is valid and specifies 1052 * the irqfd to operate in resampling mode for level triggered interrupt 1053 * emulation. See Documentation/virt/kvm/api.rst. 1054 */ 1055#define KVM_IRQFD_FLAG_RESAMPLE (1 << 1) 1056 1057struct kvm_irqfd { 1058 __u32 fd; 1059 __u32 gsi; 1060 __u32 flags; 1061 __u32 resamplefd; 1062 __u8 pad[16]; 1063}; 1064 1065/* For KVM_CAP_ADJUST_CLOCK */ 1066 1067/* Do not use 1, KVM_CHECK_EXTENSION returned it before we had flags. */ 1068#define KVM_CLOCK_TSC_STABLE 2 1069#define KVM_CLOCK_REALTIME (1 << 2) 1070#define KVM_CLOCK_HOST_TSC (1 << 3) 1071 1072struct kvm_clock_data { 1073 __u64 clock; 1074 __u32 flags; 1075 __u32 pad0; 1076 __u64 realtime; 1077 __u64 host_tsc; 1078 __u32 pad[4]; 1079}; 1080 1081/* For KVM_CAP_SW_TLB */ 1082 1083#define KVM_MMU_FSL_BOOKE_NOHV 0 1084#define KVM_MMU_FSL_BOOKE_HV 1 1085 1086struct kvm_config_tlb { 1087 __u64 params; 1088 __u64 array; 1089 __u32 mmu_type; 1090 __u32 array_len; 1091}; 1092 1093struct kvm_dirty_tlb { 1094 __u64 bitmap; 1095 __u32 num_dirty; 1096}; 1097 1098/* Available with KVM_CAP_ONE_REG */ 1099 1100#define KVM_REG_ARCH_MASK 0xff00000000000000ULL 1101#define KVM_REG_GENERIC 0x0000000000000000ULL 1102 1103/* 1104 * Architecture specific registers are to be defined in arch headers and 1105 * ORed with the arch identifier. 1106 */ 1107#define KVM_REG_PPC 0x1000000000000000ULL 1108#define KVM_REG_X86 0x2000000000000000ULL 1109#define KVM_REG_IA64 0x3000000000000000ULL 1110#define KVM_REG_ARM 0x4000000000000000ULL 1111#define KVM_REG_S390 0x5000000000000000ULL 1112#define KVM_REG_ARM64 0x6000000000000000ULL 1113#define KVM_REG_MIPS 0x7000000000000000ULL 1114#define KVM_REG_RISCV 0x8000000000000000ULL 1115#define KVM_REG_LOONGARCH 0x9000000000000000ULL 1116 1117#define KVM_REG_SIZE_SHIFT 52 1118#define KVM_REG_SIZE_MASK 0x00f0000000000000ULL 1119 1120#define KVM_REG_SIZE(id) \ 1121 (1U << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT)) 1122 1123#define KVM_REG_SIZE_U8 0x0000000000000000ULL 1124#define KVM_REG_SIZE_U16 0x0010000000000000ULL 1125#define KVM_REG_SIZE_U32 0x0020000000000000ULL 1126#define KVM_REG_SIZE_U64 0x0030000000000000ULL 1127#define KVM_REG_SIZE_U128 0x0040000000000000ULL 1128#define KVM_REG_SIZE_U256 0x0050000000000000ULL 1129#define KVM_REG_SIZE_U512 0x0060000000000000ULL 1130#define KVM_REG_SIZE_U1024 0x0070000000000000ULL 1131#define KVM_REG_SIZE_U2048 0x0080000000000000ULL 1132 1133struct kvm_reg_list { 1134 __u64 n; /* number of regs */ 1135 __DECLARE_FLEX_ARRAY(__u64, reg); 1136}; 1137 1138struct kvm_one_reg { 1139 __u64 id; 1140 __u64 addr; 1141}; 1142 1143#define KVM_MSI_VALID_DEVID (1U << 0) 1144struct kvm_msi { 1145 __u32 address_lo; 1146 __u32 address_hi; 1147 __u32 data; 1148 __u32 flags; 1149 __u32 devid; 1150 __u8 pad[12]; 1151}; 1152 1153struct kvm_arm_device_addr { 1154 __u64 id; 1155 __u64 addr; 1156}; 1157 1158/* 1159 * Device control API, available with KVM_CAP_DEVICE_CTRL 1160 */ 1161#define KVM_CREATE_DEVICE_TEST 1 1162 1163struct kvm_create_device { 1164 __u32 type; /* in: KVM_DEV_TYPE_xxx */ 1165 __u32 fd; /* out: device handle */ 1166 __u32 flags; /* in: KVM_CREATE_DEVICE_xxx */ 1167}; 1168 1169struct kvm_device_attr { 1170 __u32 flags; /* no flags currently defined */ 1171 __u32 group; /* device-defined */ 1172 __u64 attr; /* group-defined */ 1173 __u64 addr; /* userspace address of attr data */ 1174}; 1175 1176#define KVM_DEV_VFIO_FILE 1 1177 1178#define KVM_DEV_VFIO_FILE_ADD 1 1179#define KVM_DEV_VFIO_FILE_DEL 2 1180 1181/* KVM_DEV_VFIO_GROUP aliases are for compile time uapi compatibility */ 1182#define KVM_DEV_VFIO_GROUP KVM_DEV_VFIO_FILE 1183 1184#define KVM_DEV_VFIO_GROUP_ADD KVM_DEV_VFIO_FILE_ADD 1185#define KVM_DEV_VFIO_GROUP_DEL KVM_DEV_VFIO_FILE_DEL 1186#define KVM_DEV_VFIO_GROUP_SET_SPAPR_TCE 3 1187 1188enum kvm_device_type { 1189 KVM_DEV_TYPE_FSL_MPIC_20 = 1, 1190#define KVM_DEV_TYPE_FSL_MPIC_20 KVM_DEV_TYPE_FSL_MPIC_20 1191 KVM_DEV_TYPE_FSL_MPIC_42, 1192#define KVM_DEV_TYPE_FSL_MPIC_42 KVM_DEV_TYPE_FSL_MPIC_42 1193 KVM_DEV_TYPE_XICS, 1194#define KVM_DEV_TYPE_XICS KVM_DEV_TYPE_XICS 1195 KVM_DEV_TYPE_VFIO, 1196#define KVM_DEV_TYPE_VFIO KVM_DEV_TYPE_VFIO 1197 KVM_DEV_TYPE_ARM_VGIC_V2, 1198#define KVM_DEV_TYPE_ARM_VGIC_V2 KVM_DEV_TYPE_ARM_VGIC_V2 1199 KVM_DEV_TYPE_FLIC, 1200#define KVM_DEV_TYPE_FLIC KVM_DEV_TYPE_FLIC 1201 KVM_DEV_TYPE_ARM_VGIC_V3, 1202#define KVM_DEV_TYPE_ARM_VGIC_V3 KVM_DEV_TYPE_ARM_VGIC_V3 1203 KVM_DEV_TYPE_ARM_VGIC_ITS, 1204#define KVM_DEV_TYPE_ARM_VGIC_ITS KVM_DEV_TYPE_ARM_VGIC_ITS 1205 KVM_DEV_TYPE_XIVE, 1206#define KVM_DEV_TYPE_XIVE KVM_DEV_TYPE_XIVE 1207 KVM_DEV_TYPE_ARM_PV_TIME, 1208#define KVM_DEV_TYPE_ARM_PV_TIME KVM_DEV_TYPE_ARM_PV_TIME 1209 KVM_DEV_TYPE_RISCV_AIA, 1210#define KVM_DEV_TYPE_RISCV_AIA KVM_DEV_TYPE_RISCV_AIA 1211 KVM_DEV_TYPE_LOONGARCH_IPI, 1212#define KVM_DEV_TYPE_LOONGARCH_IPI KVM_DEV_TYPE_LOONGARCH_IPI 1213 KVM_DEV_TYPE_LOONGARCH_EIOINTC, 1214#define KVM_DEV_TYPE_LOONGARCH_EIOINTC KVM_DEV_TYPE_LOONGARCH_EIOINTC 1215 KVM_DEV_TYPE_LOONGARCH_PCHPIC, 1216#define KVM_DEV_TYPE_LOONGARCH_PCHPIC KVM_DEV_TYPE_LOONGARCH_PCHPIC 1217 1218 KVM_DEV_TYPE_MAX, 1219 1220}; 1221 1222struct kvm_vfio_spapr_tce { 1223 __s32 groupfd; 1224 __s32 tablefd; 1225}; 1226 1227/* 1228 * KVM_CREATE_VCPU receives as a parameter the vcpu slot, and returns 1229 * a vcpu fd. 1230 */ 1231#define KVM_CREATE_VCPU _IO(KVMIO, 0x41) 1232#define KVM_GET_DIRTY_LOG _IOW(KVMIO, 0x42, struct kvm_dirty_log) 1233#define KVM_SET_NR_MMU_PAGES _IO(KVMIO, 0x44) 1234#define KVM_GET_NR_MMU_PAGES _IO(KVMIO, 0x45) /* deprecated */ 1235#define KVM_SET_USER_MEMORY_REGION _IOW(KVMIO, 0x46, \ 1236 struct kvm_userspace_memory_region) 1237#define KVM_SET_TSS_ADDR _IO(KVMIO, 0x47) 1238#define KVM_SET_IDENTITY_MAP_ADDR _IOW(KVMIO, 0x48, __u64) 1239#define KVM_SET_USER_MEMORY_REGION2 _IOW(KVMIO, 0x49, \ 1240 struct kvm_userspace_memory_region2) 1241 1242/* enable ucontrol for s390 */ 1243#define KVM_S390_UCAS_MAP _IOW(KVMIO, 0x50, struct kvm_s390_ucas_mapping) 1244#define KVM_S390_UCAS_UNMAP _IOW(KVMIO, 0x51, struct kvm_s390_ucas_mapping) 1245#define KVM_S390_VCPU_FAULT _IOW(KVMIO, 0x52, unsigned long) 1246 1247/* Device model IOC */ 1248#define KVM_CREATE_IRQCHIP _IO(KVMIO, 0x60) 1249#define KVM_IRQ_LINE _IOW(KVMIO, 0x61, struct kvm_irq_level) 1250#define KVM_GET_IRQCHIP _IOWR(KVMIO, 0x62, struct kvm_irqchip) 1251#define KVM_SET_IRQCHIP _IOR(KVMIO, 0x63, struct kvm_irqchip) 1252#define KVM_CREATE_PIT _IO(KVMIO, 0x64) 1253#define KVM_GET_PIT _IOWR(KVMIO, 0x65, struct kvm_pit_state) 1254#define KVM_SET_PIT _IOR(KVMIO, 0x66, struct kvm_pit_state) 1255#define KVM_IRQ_LINE_STATUS _IOWR(KVMIO, 0x67, struct kvm_irq_level) 1256#define KVM_REGISTER_COALESCED_MMIO \ 1257 _IOW(KVMIO, 0x67, struct kvm_coalesced_mmio_zone) 1258#define KVM_UNREGISTER_COALESCED_MMIO \ 1259 _IOW(KVMIO, 0x68, struct kvm_coalesced_mmio_zone) 1260#define KVM_SET_GSI_ROUTING _IOW(KVMIO, 0x6a, struct kvm_irq_routing) 1261#define KVM_REINJECT_CONTROL _IO(KVMIO, 0x71) 1262#define KVM_IRQFD _IOW(KVMIO, 0x76, struct kvm_irqfd) 1263#define KVM_CREATE_PIT2 _IOW(KVMIO, 0x77, struct kvm_pit_config) 1264#define KVM_SET_BOOT_CPU_ID _IO(KVMIO, 0x78) 1265#define KVM_IOEVENTFD _IOW(KVMIO, 0x79, struct kvm_ioeventfd) 1266#define KVM_XEN_HVM_CONFIG _IOW(KVMIO, 0x7a, struct kvm_xen_hvm_config) 1267#define KVM_SET_CLOCK _IOW(KVMIO, 0x7b, struct kvm_clock_data) 1268#define KVM_GET_CLOCK _IOR(KVMIO, 0x7c, struct kvm_clock_data) 1269/* Available with KVM_CAP_PIT_STATE2 */ 1270#define KVM_GET_PIT2 _IOR(KVMIO, 0x9f, struct kvm_pit_state2) 1271#define KVM_SET_PIT2 _IOW(KVMIO, 0xa0, struct kvm_pit_state2) 1272/* Available with KVM_CAP_PPC_GET_PVINFO */ 1273#define KVM_PPC_GET_PVINFO _IOW(KVMIO, 0xa1, struct kvm_ppc_pvinfo) 1274/* Available with KVM_CAP_TSC_CONTROL for a vCPU, or with 1275* KVM_CAP_VM_TSC_CONTROL to set defaults for a VM */ 1276#define KVM_SET_TSC_KHZ _IO(KVMIO, 0xa2) 1277#define KVM_GET_TSC_KHZ _IO(KVMIO, 0xa3) 1278/* Available with KVM_CAP_SIGNAL_MSI */ 1279#define KVM_SIGNAL_MSI _IOW(KVMIO, 0xa5, struct kvm_msi) 1280/* Available with KVM_CAP_PPC_GET_SMMU_INFO */ 1281#define KVM_PPC_GET_SMMU_INFO _IOR(KVMIO, 0xa6, struct kvm_ppc_smmu_info) 1282/* Available with KVM_CAP_PPC_ALLOC_HTAB */ 1283#define KVM_PPC_ALLOCATE_HTAB _IOWR(KVMIO, 0xa7, __u32) 1284#define KVM_CREATE_SPAPR_TCE _IOW(KVMIO, 0xa8, struct kvm_create_spapr_tce) 1285#define KVM_CREATE_SPAPR_TCE_64 _IOW(KVMIO, 0xa8, \ 1286 struct kvm_create_spapr_tce_64) 1287/* Available with KVM_CAP_RMA */ 1288#define KVM_ALLOCATE_RMA _IOR(KVMIO, 0xa9, struct kvm_allocate_rma) 1289/* Available with KVM_CAP_PPC_HTAB_FD */ 1290#define KVM_PPC_GET_HTAB_FD _IOW(KVMIO, 0xaa, struct kvm_get_htab_fd) 1291/* Available with KVM_CAP_ARM_SET_DEVICE_ADDR */ 1292#define KVM_ARM_SET_DEVICE_ADDR _IOW(KVMIO, 0xab, struct kvm_arm_device_addr) 1293/* Available with KVM_CAP_PPC_RTAS */ 1294#define KVM_PPC_RTAS_DEFINE_TOKEN _IOW(KVMIO, 0xac, struct kvm_rtas_token_args) 1295/* Available with KVM_CAP_SPAPR_RESIZE_HPT */ 1296#define KVM_PPC_RESIZE_HPT_PREPARE _IOR(KVMIO, 0xad, struct kvm_ppc_resize_hpt) 1297#define KVM_PPC_RESIZE_HPT_COMMIT _IOR(KVMIO, 0xae, struct kvm_ppc_resize_hpt) 1298/* Available with KVM_CAP_PPC_MMU_RADIX or KVM_CAP_PPC_MMU_HASH_V3 */ 1299#define KVM_PPC_CONFIGURE_V3_MMU _IOW(KVMIO, 0xaf, struct kvm_ppc_mmuv3_cfg) 1300/* Available with KVM_CAP_PPC_MMU_RADIX */ 1301#define KVM_PPC_GET_RMMU_INFO _IOW(KVMIO, 0xb0, struct kvm_ppc_rmmu_info) 1302/* Available with KVM_CAP_PPC_GET_CPU_CHAR */ 1303#define KVM_PPC_GET_CPU_CHAR _IOR(KVMIO, 0xb1, struct kvm_ppc_cpu_char) 1304/* Available with KVM_CAP_PMU_EVENT_FILTER */ 1305#define KVM_SET_PMU_EVENT_FILTER _IOW(KVMIO, 0xb2, struct kvm_pmu_event_filter) 1306#define KVM_PPC_SVM_OFF _IO(KVMIO, 0xb3) 1307#define KVM_ARM_MTE_COPY_TAGS _IOR(KVMIO, 0xb4, struct kvm_arm_copy_mte_tags) 1308/* Available with KVM_CAP_COUNTER_OFFSET */ 1309#define KVM_ARM_SET_COUNTER_OFFSET _IOW(KVMIO, 0xb5, struct kvm_arm_counter_offset) 1310#define KVM_ARM_GET_REG_WRITABLE_MASKS _IOR(KVMIO, 0xb6, struct reg_mask_range) 1311 1312/* ioctl for vm fd */ 1313#define KVM_CREATE_DEVICE _IOWR(KVMIO, 0xe0, struct kvm_create_device) 1314 1315/* ioctls for fds returned by KVM_CREATE_DEVICE */ 1316#define KVM_SET_DEVICE_ATTR _IOW(KVMIO, 0xe1, struct kvm_device_attr) 1317#define KVM_GET_DEVICE_ATTR _IOW(KVMIO, 0xe2, struct kvm_device_attr) 1318#define KVM_HAS_DEVICE_ATTR _IOW(KVMIO, 0xe3, struct kvm_device_attr) 1319 1320/* 1321 * ioctls for vcpu fds 1322 */ 1323#define KVM_RUN _IO(KVMIO, 0x80) 1324#define KVM_GET_REGS _IOR(KVMIO, 0x81, struct kvm_regs) 1325#define KVM_SET_REGS _IOW(KVMIO, 0x82, struct kvm_regs) 1326#define KVM_GET_SREGS _IOR(KVMIO, 0x83, struct kvm_sregs) 1327#define KVM_SET_SREGS _IOW(KVMIO, 0x84, struct kvm_sregs) 1328#define KVM_TRANSLATE _IOWR(KVMIO, 0x85, struct kvm_translation) 1329#define KVM_INTERRUPT _IOW(KVMIO, 0x86, struct kvm_interrupt) 1330#define KVM_GET_MSRS _IOWR(KVMIO, 0x88, struct kvm_msrs) 1331#define KVM_SET_MSRS _IOW(KVMIO, 0x89, struct kvm_msrs) 1332#define KVM_SET_CPUID _IOW(KVMIO, 0x8a, struct kvm_cpuid) 1333#define KVM_SET_SIGNAL_MASK _IOW(KVMIO, 0x8b, struct kvm_signal_mask) 1334#define KVM_GET_FPU _IOR(KVMIO, 0x8c, struct kvm_fpu) 1335#define KVM_SET_FPU _IOW(KVMIO, 0x8d, struct kvm_fpu) 1336#define KVM_GET_LAPIC _IOR(KVMIO, 0x8e, struct kvm_lapic_state) 1337#define KVM_SET_LAPIC _IOW(KVMIO, 0x8f, struct kvm_lapic_state) 1338#define KVM_SET_CPUID2 _IOW(KVMIO, 0x90, struct kvm_cpuid2) 1339#define KVM_GET_CPUID2 _IOWR(KVMIO, 0x91, struct kvm_cpuid2) 1340/* Available with KVM_CAP_VAPIC */ 1341#define KVM_TPR_ACCESS_REPORTING _IOWR(KVMIO, 0x92, struct kvm_tpr_access_ctl) 1342/* Available with KVM_CAP_VAPIC */ 1343#define KVM_SET_VAPIC_ADDR _IOW(KVMIO, 0x93, struct kvm_vapic_addr) 1344/* valid for virtual machine (for floating interrupt)_and_ vcpu */ 1345#define KVM_S390_INTERRUPT _IOW(KVMIO, 0x94, struct kvm_s390_interrupt) 1346/* store status for s390 */ 1347#define KVM_S390_STORE_STATUS_NOADDR (-1ul) 1348#define KVM_S390_STORE_STATUS_PREFIXED (-2ul) 1349#define KVM_S390_STORE_STATUS _IOW(KVMIO, 0x95, unsigned long) 1350/* initial ipl psw for s390 */ 1351#define KVM_S390_SET_INITIAL_PSW _IOW(KVMIO, 0x96, struct kvm_s390_psw) 1352/* initial reset for s390 */ 1353#define KVM_S390_INITIAL_RESET _IO(KVMIO, 0x97) 1354#define KVM_GET_MP_STATE _IOR(KVMIO, 0x98, struct kvm_mp_state) 1355#define KVM_SET_MP_STATE _IOW(KVMIO, 0x99, struct kvm_mp_state) 1356/* Available with KVM_CAP_USER_NMI */ 1357#define KVM_NMI _IO(KVMIO, 0x9a) 1358/* Available with KVM_CAP_SET_GUEST_DEBUG */ 1359#define KVM_SET_GUEST_DEBUG _IOW(KVMIO, 0x9b, struct kvm_guest_debug) 1360/* MCE for x86 */ 1361#define KVM_X86_SETUP_MCE _IOW(KVMIO, 0x9c, __u64) 1362#define KVM_X86_GET_MCE_CAP_SUPPORTED _IOR(KVMIO, 0x9d, __u64) 1363#define KVM_X86_SET_MCE _IOW(KVMIO, 0x9e, struct kvm_x86_mce) 1364/* Available with KVM_CAP_VCPU_EVENTS */ 1365#define KVM_GET_VCPU_EVENTS _IOR(KVMIO, 0x9f, struct kvm_vcpu_events) 1366#define KVM_SET_VCPU_EVENTS _IOW(KVMIO, 0xa0, struct kvm_vcpu_events) 1367/* Available with KVM_CAP_DEBUGREGS */ 1368#define KVM_GET_DEBUGREGS _IOR(KVMIO, 0xa1, struct kvm_debugregs) 1369#define KVM_SET_DEBUGREGS _IOW(KVMIO, 0xa2, struct kvm_debugregs) 1370/* 1371 * vcpu version available with KVM_CAP_ENABLE_CAP 1372 * vm version available with KVM_CAP_ENABLE_CAP_VM 1373 */ 1374#define KVM_ENABLE_CAP _IOW(KVMIO, 0xa3, struct kvm_enable_cap) 1375/* Available with KVM_CAP_XSAVE */ 1376#define KVM_GET_XSAVE _IOR(KVMIO, 0xa4, struct kvm_xsave) 1377#define KVM_SET_XSAVE _IOW(KVMIO, 0xa5, struct kvm_xsave) 1378/* Available with KVM_CAP_XCRS */ 1379#define KVM_GET_XCRS _IOR(KVMIO, 0xa6, struct kvm_xcrs) 1380#define KVM_SET_XCRS _IOW(KVMIO, 0xa7, struct kvm_xcrs) 1381/* Available with KVM_CAP_SW_TLB */ 1382#define KVM_DIRTY_TLB _IOW(KVMIO, 0xaa, struct kvm_dirty_tlb) 1383/* Available with KVM_CAP_ONE_REG */ 1384#define KVM_GET_ONE_REG _IOW(KVMIO, 0xab, struct kvm_one_reg) 1385#define KVM_SET_ONE_REG _IOW(KVMIO, 0xac, struct kvm_one_reg) 1386/* VM is being stopped by host */ 1387#define KVM_KVMCLOCK_CTRL _IO(KVMIO, 0xad) 1388#define KVM_ARM_VCPU_INIT _IOW(KVMIO, 0xae, struct kvm_vcpu_init) 1389#define KVM_ARM_PREFERRED_TARGET _IOR(KVMIO, 0xaf, struct kvm_vcpu_init) 1390#define KVM_GET_REG_LIST _IOWR(KVMIO, 0xb0, struct kvm_reg_list) 1391/* Available with KVM_CAP_S390_MEM_OP */ 1392#define KVM_S390_MEM_OP _IOW(KVMIO, 0xb1, struct kvm_s390_mem_op) 1393/* Available with KVM_CAP_S390_SKEYS */ 1394#define KVM_S390_GET_SKEYS _IOW(KVMIO, 0xb2, struct kvm_s390_skeys) 1395#define KVM_S390_SET_SKEYS _IOW(KVMIO, 0xb3, struct kvm_s390_skeys) 1396/* Available with KVM_CAP_S390_INJECT_IRQ */ 1397#define KVM_S390_IRQ _IOW(KVMIO, 0xb4, struct kvm_s390_irq) 1398/* Available with KVM_CAP_S390_IRQ_STATE */ 1399#define KVM_S390_SET_IRQ_STATE _IOW(KVMIO, 0xb5, struct kvm_s390_irq_state) 1400#define KVM_S390_GET_IRQ_STATE _IOW(KVMIO, 0xb6, struct kvm_s390_irq_state) 1401/* Available with KVM_CAP_X86_SMM */ 1402#define KVM_SMI _IO(KVMIO, 0xb7) 1403/* Available with KVM_CAP_S390_CMMA_MIGRATION */ 1404#define KVM_S390_GET_CMMA_BITS _IOWR(KVMIO, 0xb8, struct kvm_s390_cmma_log) 1405#define KVM_S390_SET_CMMA_BITS _IOW(KVMIO, 0xb9, struct kvm_s390_cmma_log) 1406/* Memory Encryption Commands */ 1407#define KVM_MEMORY_ENCRYPT_OP _IOWR(KVMIO, 0xba, unsigned long) 1408 1409struct kvm_enc_region { 1410 __u64 addr; 1411 __u64 size; 1412}; 1413 1414#define KVM_MEMORY_ENCRYPT_REG_REGION _IOR(KVMIO, 0xbb, struct kvm_enc_region) 1415#define KVM_MEMORY_ENCRYPT_UNREG_REGION _IOR(KVMIO, 0xbc, struct kvm_enc_region) 1416 1417/* Available with KVM_CAP_HYPERV_EVENTFD */ 1418#define KVM_HYPERV_EVENTFD _IOW(KVMIO, 0xbd, struct kvm_hyperv_eventfd) 1419 1420/* Available with KVM_CAP_NESTED_STATE */ 1421#define KVM_GET_NESTED_STATE _IOWR(KVMIO, 0xbe, struct kvm_nested_state) 1422#define KVM_SET_NESTED_STATE _IOW(KVMIO, 0xbf, struct kvm_nested_state) 1423 1424/* Available with KVM_CAP_MANUAL_DIRTY_LOG_PROTECT_2 */ 1425#define KVM_CLEAR_DIRTY_LOG _IOWR(KVMIO, 0xc0, struct kvm_clear_dirty_log) 1426 1427/* Available with KVM_CAP_HYPERV_CPUID (vcpu) / KVM_CAP_SYS_HYPERV_CPUID (system) */ 1428#define KVM_GET_SUPPORTED_HV_CPUID _IOWR(KVMIO, 0xc1, struct kvm_cpuid2) 1429 1430/* Available with KVM_CAP_ARM_SVE */ 1431#define KVM_ARM_VCPU_FINALIZE _IOW(KVMIO, 0xc2, int) 1432 1433/* Available with KVM_CAP_S390_VCPU_RESETS */ 1434#define KVM_S390_NORMAL_RESET _IO(KVMIO, 0xc3) 1435#define KVM_S390_CLEAR_RESET _IO(KVMIO, 0xc4) 1436 1437/* Available with KVM_CAP_S390_PROTECTED */ 1438#define KVM_S390_PV_COMMAND _IOWR(KVMIO, 0xc5, struct kvm_pv_cmd) 1439 1440/* Available with KVM_CAP_X86_MSR_FILTER */ 1441#define KVM_X86_SET_MSR_FILTER _IOW(KVMIO, 0xc6, struct kvm_msr_filter) 1442 1443/* Available with KVM_CAP_DIRTY_LOG_RING */ 1444#define KVM_RESET_DIRTY_RINGS _IO(KVMIO, 0xc7) 1445 1446/* Per-VM Xen attributes */ 1447#define KVM_XEN_HVM_GET_ATTR _IOWR(KVMIO, 0xc8, struct kvm_xen_hvm_attr) 1448#define KVM_XEN_HVM_SET_ATTR _IOW(KVMIO, 0xc9, struct kvm_xen_hvm_attr) 1449 1450/* Per-vCPU Xen attributes */ 1451#define KVM_XEN_VCPU_GET_ATTR _IOWR(KVMIO, 0xca, struct kvm_xen_vcpu_attr) 1452#define KVM_XEN_VCPU_SET_ATTR _IOW(KVMIO, 0xcb, struct kvm_xen_vcpu_attr) 1453 1454/* Available with KVM_CAP_XEN_HVM / KVM_XEN_HVM_CONFIG_EVTCHN_SEND */ 1455#define KVM_XEN_HVM_EVTCHN_SEND _IOW(KVMIO, 0xd0, struct kvm_irq_routing_xen_evtchn) 1456 1457#define KVM_GET_SREGS2 _IOR(KVMIO, 0xcc, struct kvm_sregs2) 1458#define KVM_SET_SREGS2 _IOW(KVMIO, 0xcd, struct kvm_sregs2) 1459 1460#define KVM_DIRTY_LOG_MANUAL_PROTECT_ENABLE (1 << 0) 1461#define KVM_DIRTY_LOG_INITIALLY_SET (1 << 1) 1462 1463/* 1464 * Arch needs to define the macro after implementing the dirty ring 1465 * feature. KVM_DIRTY_LOG_PAGE_OFFSET should be defined as the 1466 * starting page offset of the dirty ring structures. 1467 */ 1468#ifndef KVM_DIRTY_LOG_PAGE_OFFSET 1469#define KVM_DIRTY_LOG_PAGE_OFFSET 0 1470#endif 1471 1472/* 1473 * KVM dirty GFN flags, defined as: 1474 * 1475 * |---------------+---------------+--------------| 1476 * | bit 1 (reset) | bit 0 (dirty) | Status | 1477 * |---------------+---------------+--------------| 1478 * | 0 | 0 | Invalid GFN | 1479 * | 0 | 1 | Dirty GFN | 1480 * | 1 | X | GFN to reset | 1481 * |---------------+---------------+--------------| 1482 * 1483 * Lifecycle of a dirty GFN goes like: 1484 * 1485 * dirtied harvested reset 1486 * 00 -----------> 01 -------------> 1X -------+ 1487 * ^ | 1488 * | | 1489 * +------------------------------------------+ 1490 * 1491 * The userspace program is only responsible for the 01->1X state 1492 * conversion after harvesting an entry. Also, it must not skip any 1493 * dirty bits, so that dirty bits are always harvested in sequence. 1494 */ 1495#define KVM_DIRTY_GFN_F_DIRTY _BITUL(0) 1496#define KVM_DIRTY_GFN_F_RESET _BITUL(1) 1497#define KVM_DIRTY_GFN_F_MASK 0x3 1498 1499/* 1500 * KVM dirty rings should be mapped at KVM_DIRTY_LOG_PAGE_OFFSET of 1501 * per-vcpu mmaped regions as an array of struct kvm_dirty_gfn. The 1502 * size of the gfn buffer is decided by the first argument when 1503 * enabling KVM_CAP_DIRTY_LOG_RING. 1504 */ 1505struct kvm_dirty_gfn { 1506 __u32 flags; 1507 __u32 slot; 1508 __u64 offset; 1509}; 1510 1511#define KVM_BUS_LOCK_DETECTION_OFF (1 << 0) 1512#define KVM_BUS_LOCK_DETECTION_EXIT (1 << 1) 1513 1514#define KVM_PMU_CAP_DISABLE (1 << 0) 1515 1516/** 1517 * struct kvm_stats_header - Header of per vm/vcpu binary statistics data. 1518 * @flags: Some extra information for header, always 0 for now. 1519 * @name_size: The size in bytes of the memory which contains statistics 1520 * name string including trailing '\0'. The memory is allocated 1521 * at the send of statistics descriptor. 1522 * @num_desc: The number of statistics the vm or vcpu has. 1523 * @id_offset: The offset of the vm/vcpu stats' id string in the file pointed 1524 * by vm/vcpu stats fd. 1525 * @desc_offset: The offset of the vm/vcpu stats' descriptor block in the file 1526 * pointd by vm/vcpu stats fd. 1527 * @data_offset: The offset of the vm/vcpu stats' data block in the file 1528 * pointed by vm/vcpu stats fd. 1529 * 1530 * This is the header userspace needs to read from stats fd before any other 1531 * readings. It is used by userspace to discover all the information about the 1532 * vm/vcpu's binary statistics. 1533 * Userspace reads this header from the start of the vm/vcpu's stats fd. 1534 */ 1535struct kvm_stats_header { 1536 __u32 flags; 1537 __u32 name_size; 1538 __u32 num_desc; 1539 __u32 id_offset; 1540 __u32 desc_offset; 1541 __u32 data_offset; 1542}; 1543 1544#define KVM_STATS_TYPE_SHIFT 0 1545#define KVM_STATS_TYPE_MASK (0xF << KVM_STATS_TYPE_SHIFT) 1546#define KVM_STATS_TYPE_CUMULATIVE (0x0 << KVM_STATS_TYPE_SHIFT) 1547#define KVM_STATS_TYPE_INSTANT (0x1 << KVM_STATS_TYPE_SHIFT) 1548#define KVM_STATS_TYPE_PEAK (0x2 << KVM_STATS_TYPE_SHIFT) 1549#define KVM_STATS_TYPE_LINEAR_HIST (0x3 << KVM_STATS_TYPE_SHIFT) 1550#define KVM_STATS_TYPE_LOG_HIST (0x4 << KVM_STATS_TYPE_SHIFT) 1551#define KVM_STATS_TYPE_MAX KVM_STATS_TYPE_LOG_HIST 1552 1553#define KVM_STATS_UNIT_SHIFT 4 1554#define KVM_STATS_UNIT_MASK (0xF << KVM_STATS_UNIT_SHIFT) 1555#define KVM_STATS_UNIT_NONE (0x0 << KVM_STATS_UNIT_SHIFT) 1556#define KVM_STATS_UNIT_BYTES (0x1 << KVM_STATS_UNIT_SHIFT) 1557#define KVM_STATS_UNIT_SECONDS (0x2 << KVM_STATS_UNIT_SHIFT) 1558#define KVM_STATS_UNIT_CYCLES (0x3 << KVM_STATS_UNIT_SHIFT) 1559#define KVM_STATS_UNIT_BOOLEAN (0x4 << KVM_STATS_UNIT_SHIFT) 1560#define KVM_STATS_UNIT_MAX KVM_STATS_UNIT_BOOLEAN 1561 1562#define KVM_STATS_BASE_SHIFT 8 1563#define KVM_STATS_BASE_MASK (0xF << KVM_STATS_BASE_SHIFT) 1564#define KVM_STATS_BASE_POW10 (0x0 << KVM_STATS_BASE_SHIFT) 1565#define KVM_STATS_BASE_POW2 (0x1 << KVM_STATS_BASE_SHIFT) 1566#define KVM_STATS_BASE_MAX KVM_STATS_BASE_POW2 1567 1568/** 1569 * struct kvm_stats_desc - Descriptor of a KVM statistics. 1570 * @flags: Annotations of the stats, like type, unit, etc. 1571 * @exponent: Used together with @flags to determine the unit. 1572 * @size: The number of data items for this stats. 1573 * Every data item is of type __u64. 1574 * @offset: The offset of the stats to the start of stat structure in 1575 * structure kvm or kvm_vcpu. 1576 * @bucket_size: A parameter value used for histogram stats. It is only used 1577 * for linear histogram stats, specifying the size of the bucket; 1578 * @name: The name string for the stats. Its size is indicated by the 1579 * &kvm_stats_header->name_size. 1580 */ 1581struct kvm_stats_desc { 1582 __u32 flags; 1583 __s16 exponent; 1584 __u16 size; 1585 __u32 offset; 1586 __u32 bucket_size; 1587#ifdef __KERNEL__ 1588 char name[KVM_STATS_NAME_SIZE]; 1589#else 1590 __DECLARE_FLEX_ARRAY(char, name); 1591#endif 1592}; 1593 1594#define KVM_GET_STATS_FD _IO(KVMIO, 0xce) 1595 1596/* Available with KVM_CAP_XSAVE2 */ 1597#define KVM_GET_XSAVE2 _IOR(KVMIO, 0xcf, struct kvm_xsave) 1598 1599/* Available with KVM_CAP_S390_PROTECTED_DUMP */ 1600#define KVM_S390_PV_CPU_COMMAND _IOWR(KVMIO, 0xd0, struct kvm_pv_cmd) 1601 1602/* Available with KVM_CAP_X86_NOTIFY_VMEXIT */ 1603#define KVM_X86_NOTIFY_VMEXIT_ENABLED (1ULL << 0) 1604#define KVM_X86_NOTIFY_VMEXIT_USER (1ULL << 1) 1605 1606/* Available with KVM_CAP_S390_ZPCI_OP */ 1607#define KVM_S390_ZPCI_OP _IOW(KVMIO, 0xd1, struct kvm_s390_zpci_op) 1608 1609/* Available with KVM_CAP_MEMORY_ATTRIBUTES */ 1610#define KVM_SET_MEMORY_ATTRIBUTES _IOW(KVMIO, 0xd2, struct kvm_memory_attributes) 1611 1612struct kvm_memory_attributes { 1613 __u64 address; 1614 __u64 size; 1615 __u64 attributes; 1616 __u64 flags; 1617}; 1618 1619#define KVM_MEMORY_ATTRIBUTE_PRIVATE (1ULL << 3) 1620 1621#define KVM_CREATE_GUEST_MEMFD _IOWR(KVMIO, 0xd4, struct kvm_create_guest_memfd) 1622#define GUEST_MEMFD_FLAG_MMAP (1ULL << 0) 1623#define GUEST_MEMFD_FLAG_INIT_SHARED (1ULL << 1) 1624 1625struct kvm_create_guest_memfd { 1626 __u64 size; 1627 __u64 flags; 1628 __u64 reserved[6]; 1629}; 1630 1631#define KVM_PRE_FAULT_MEMORY _IOWR(KVMIO, 0xd5, struct kvm_pre_fault_memory) 1632 1633struct kvm_pre_fault_memory { 1634 __u64 gpa; 1635 __u64 size; 1636 __u64 flags; 1637 __u64 padding[5]; 1638}; 1639 1640#endif /* __LINUX_KVM_H */
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