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