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/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 39 181 182 /* For KVM_EXIT_INTERNAL_ERROR */ 183 /* Emulate instruction failed. */ 184 #define KVM_INTERNAL_ERROR_EMULATION 1 185 /* Encounter unexpected simultaneous exceptions. */ 186 #define KVM_INTERNAL_ERROR_SIMUL_EX 2 187 /* Encounter unexpected vm-exit due to delivery event. */ 188 #define KVM_INTERNAL_ERROR_DELIVERY_EV 3 189 /* Encounter unexpected vm-exit reason */ 190 #define KVM_INTERNAL_ERROR_UNEXPECTED_EXIT_REASON 4 191 192 /* Flags that describe what fields in emulation_failure hold valid data. */ 193 #define KVM_INTERNAL_ERROR_EMULATION_FLAG_INSTRUCTION_BYTES (1ULL << 0) 194 195 /* 196 * struct kvm_run can be modified by userspace at any time, so KVM must be 197 * careful to avoid TOCTOU bugs. In order to protect KVM, HINT_UNSAFE_IN_KVM() 198 * renames fields in struct kvm_run from <symbol> to <symbol>__unsafe when 199 * compiled into the kernel, ensuring that any use within KVM is obvious and 200 * gets extra scrutiny. 201 */ 202 #ifdef __KERNEL__ 203 #define HINT_UNSAFE_IN_KVM(_symbol) _symbol##__unsafe 204 #else 205 #define HINT_UNSAFE_IN_KVM(_symbol) _symbol 206 #endif 207 208 /* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */ 209 struct kvm_run { 210 /* in */ 211 __u8 request_interrupt_window; 212 __u8 HINT_UNSAFE_IN_KVM(immediate_exit); 213 __u8 padding1[6]; 214 215 /* out */ 216 __u32 exit_reason; 217 __u8 ready_for_interrupt_injection; 218 __u8 if_flag; 219 __u16 flags; 220 221 /* in (pre_kvm_run), out (post_kvm_run) */ 222 __u64 cr8; 223 __u64 apic_base; 224 225 #ifdef __KVM_S390 226 /* the processor status word for s390 */ 227 __u64 psw_mask; /* psw upper half */ 228 __u64 psw_addr; /* psw lower half */ 229 #endif 230 union { 231 /* KVM_EXIT_UNKNOWN */ 232 struct { 233 __u64 hardware_exit_reason; 234 } hw; 235 /* KVM_EXIT_FAIL_ENTRY */ 236 struct { 237 __u64 hardware_entry_failure_reason; 238 __u32 cpu; 239 } fail_entry; 240 /* KVM_EXIT_EXCEPTION */ 241 struct { 242 __u32 exception; 243 __u32 error_code; 244 } ex; 245 /* KVM_EXIT_IO */ 246 struct { 247 #define KVM_EXIT_IO_IN 0 248 #define KVM_EXIT_IO_OUT 1 249 __u8 direction; 250 __u8 size; /* bytes */ 251 __u16 port; 252 __u32 count; 253 __u64 data_offset; /* relative to kvm_run start */ 254 } io; 255 /* KVM_EXIT_DEBUG */ 256 struct { 257 struct kvm_debug_exit_arch arch; 258 } debug; 259 /* KVM_EXIT_MMIO */ 260 struct { 261 __u64 phys_addr; 262 __u8 data[8]; 263 __u32 len; 264 __u8 is_write; 265 } mmio; 266 /* KVM_EXIT_LOONGARCH_IOCSR */ 267 struct { 268 __u64 phys_addr; 269 __u8 data[8]; 270 __u32 len; 271 __u8 is_write; 272 } iocsr_io; 273 /* KVM_EXIT_HYPERCALL */ 274 struct { 275 __u64 nr; 276 __u64 args[6]; 277 __u64 ret; 278 279 union { 280 #ifndef __KERNEL__ 281 __u32 longmode; 282 #endif 283 __u64 flags; 284 }; 285 } hypercall; 286 /* KVM_EXIT_TPR_ACCESS */ 287 struct { 288 __u64 rip; 289 __u32 is_write; 290 __u32 pad; 291 } tpr_access; 292 /* KVM_EXIT_S390_SIEIC */ 293 struct { 294 __u8 icptcode; 295 __u16 ipa; 296 __u32 ipb; 297 } s390_sieic; 298 /* KVM_EXIT_S390_RESET */ 299 __u64 s390_reset_flags; 300 /* KVM_EXIT_S390_UCONTROL */ 301 struct { 302 __u64 trans_exc_code; 303 __u32 pgm_code; 304 } s390_ucontrol; 305 /* KVM_EXIT_DCR (deprecated) */ 306 struct { 307 __u32 dcrn; 308 __u32 data; 309 __u8 is_write; 310 } dcr; 311 /* KVM_EXIT_INTERNAL_ERROR */ 312 struct { 313 __u32 suberror; 314 /* Available with KVM_CAP_INTERNAL_ERROR_DATA: */ 315 __u32 ndata; 316 __u64 data[16]; 317 } internal; 318 /* 319 * KVM_INTERNAL_ERROR_EMULATION 320 * 321 * "struct emulation_failure" is an overlay of "struct internal" 322 * that is used for the KVM_INTERNAL_ERROR_EMULATION sub-type of 323 * KVM_EXIT_INTERNAL_ERROR. Note, unlike other internal error 324 * sub-types, this struct is ABI! It also needs to be backwards 325 * compatible with "struct internal". Take special care that 326 * "ndata" is correct, that new fields are enumerated in "flags", 327 * and that each flag enumerates fields that are 64-bit aligned 328 * and sized (so that ndata+internal.data[] is valid/accurate). 329 * 330 * Space beyond the defined fields may be used to store arbitrary 331 * debug information relating to the emulation failure. It is 332 * accounted for in "ndata" but the format is unspecified and is 333 * not represented in "flags". Any such information is *not* ABI! 334 */ 335 struct { 336 __u32 suberror; 337 __u32 ndata; 338 __u64 flags; 339 union { 340 struct { 341 __u8 insn_size; 342 __u8 insn_bytes[15]; 343 }; 344 }; 345 /* Arbitrary debug data may follow. */ 346 } emulation_failure; 347 /* KVM_EXIT_OSI */ 348 struct { 349 __u64 gprs[32]; 350 } osi; 351 /* KVM_EXIT_PAPR_HCALL */ 352 struct { 353 __u64 nr; 354 __u64 ret; 355 __u64 args[9]; 356 } papr_hcall; 357 /* KVM_EXIT_S390_TSCH */ 358 struct { 359 __u16 subchannel_id; 360 __u16 subchannel_nr; 361 __u32 io_int_parm; 362 __u32 io_int_word; 363 __u32 ipb; 364 __u8 dequeued; 365 } s390_tsch; 366 /* KVM_EXIT_EPR */ 367 struct { 368 __u32 epr; 369 } epr; 370 /* KVM_EXIT_SYSTEM_EVENT */ 371 struct { 372 #define KVM_SYSTEM_EVENT_SHUTDOWN 1 373 #define KVM_SYSTEM_EVENT_RESET 2 374 #define KVM_SYSTEM_EVENT_CRASH 3 375 #define KVM_SYSTEM_EVENT_WAKEUP 4 376 #define KVM_SYSTEM_EVENT_SUSPEND 5 377 #define KVM_SYSTEM_EVENT_SEV_TERM 6 378 __u32 type; 379 __u32 ndata; 380 union { 381 #ifndef __KERNEL__ 382 __u64 flags; 383 #endif 384 __u64 data[16]; 385 }; 386 } system_event; 387 /* KVM_EXIT_S390_STSI */ 388 struct { 389 __u64 addr; 390 __u8 ar; 391 __u8 reserved; 392 __u8 fc; 393 __u8 sel1; 394 __u16 sel2; 395 } s390_stsi; 396 /* KVM_EXIT_IOAPIC_EOI */ 397 struct { 398 __u8 vector; 399 } eoi; 400 /* KVM_EXIT_HYPERV */ 401 struct kvm_hyperv_exit hyperv; 402 /* KVM_EXIT_ARM_NISV */ 403 struct { 404 __u64 esr_iss; 405 __u64 fault_ipa; 406 } arm_nisv; 407 /* KVM_EXIT_X86_RDMSR / KVM_EXIT_X86_WRMSR */ 408 struct { 409 __u8 error; /* user -> kernel */ 410 __u8 pad[7]; 411 #define KVM_MSR_EXIT_REASON_INVAL (1 << 0) 412 #define KVM_MSR_EXIT_REASON_UNKNOWN (1 << 1) 413 #define KVM_MSR_EXIT_REASON_FILTER (1 << 2) 414 #define KVM_MSR_EXIT_REASON_VALID_MASK (KVM_MSR_EXIT_REASON_INVAL | \ 415 KVM_MSR_EXIT_REASON_UNKNOWN | \ 416 KVM_MSR_EXIT_REASON_FILTER) 417 __u32 reason; /* kernel -> user */ 418 __u32 index; /* kernel -> user */ 419 __u64 data; /* kernel <-> user */ 420 } msr; 421 /* KVM_EXIT_XEN */ 422 struct kvm_xen_exit xen; 423 /* KVM_EXIT_RISCV_SBI */ 424 struct { 425 unsigned long extension_id; 426 unsigned long function_id; 427 unsigned long args[6]; 428 unsigned long ret[2]; 429 } riscv_sbi; 430 /* KVM_EXIT_RISCV_CSR */ 431 struct { 432 unsigned long csr_num; 433 unsigned long new_value; 434 unsigned long write_mask; 435 unsigned long ret_value; 436 } riscv_csr; 437 /* KVM_EXIT_NOTIFY */ 438 struct { 439 #define KVM_NOTIFY_CONTEXT_INVALID (1 << 0) 440 __u32 flags; 441 } notify; 442 /* KVM_EXIT_MEMORY_FAULT */ 443 struct { 444 #define KVM_MEMORY_EXIT_FLAG_PRIVATE (1ULL << 3) 445 __u64 flags; 446 __u64 gpa; 447 __u64 size; 448 } memory_fault; 449 /* Fix the size of the union. */ 450 char padding[256]; 451 }; 452 453 /* 2048 is the size of the char array used to bound/pad the size 454 * of the union that holds sync regs. 455 */ 456 #define SYNC_REGS_SIZE_BYTES 2048 457 /* 458 * shared registers between kvm and userspace. 459 * kvm_valid_regs specifies the register classes set by the host 460 * kvm_dirty_regs specified the register classes dirtied by userspace 461 * struct kvm_sync_regs is architecture specific, as well as the 462 * bits for kvm_valid_regs and kvm_dirty_regs 463 */ 464 __u64 kvm_valid_regs; 465 __u64 kvm_dirty_regs; 466 union { 467 struct kvm_sync_regs regs; 468 char padding[SYNC_REGS_SIZE_BYTES]; 469 } s; 470 }; 471 472 /* for KVM_REGISTER_COALESCED_MMIO / KVM_UNREGISTER_COALESCED_MMIO */ 473 474 struct kvm_coalesced_mmio_zone { 475 __u64 addr; 476 __u32 size; 477 union { 478 __u32 pad; 479 __u32 pio; 480 }; 481 }; 482 483 struct kvm_coalesced_mmio { 484 __u64 phys_addr; 485 __u32 len; 486 union { 487 __u32 pad; 488 __u32 pio; 489 }; 490 __u8 data[8]; 491 }; 492 493 struct kvm_coalesced_mmio_ring { 494 __u32 first, last; 495 struct kvm_coalesced_mmio coalesced_mmio[]; 496 }; 497 498 #define KVM_COALESCED_MMIO_MAX \ 499 ((PAGE_SIZE - sizeof(struct kvm_coalesced_mmio_ring)) / \ 500 sizeof(struct kvm_coalesced_mmio)) 501 502 /* for KVM_TRANSLATE */ 503 struct kvm_translation { 504 /* in */ 505 __u64 linear_address; 506 507 /* out */ 508 __u64 physical_address; 509 __u8 valid; 510 __u8 writeable; 511 __u8 usermode; 512 __u8 pad[5]; 513 }; 514 515 /* for KVM_INTERRUPT */ 516 struct kvm_interrupt { 517 /* in */ 518 __u32 irq; 519 }; 520 521 /* for KVM_GET_DIRTY_LOG */ 522 struct kvm_dirty_log { 523 __u32 slot; 524 __u32 padding1; 525 union { 526 void __user *dirty_bitmap; /* one bit per page */ 527 __u64 padding2; 528 }; 529 }; 530 531 /* for KVM_CLEAR_DIRTY_LOG */ 532 struct kvm_clear_dirty_log { 533 __u32 slot; 534 __u32 num_pages; 535 __u64 first_page; 536 union { 537 void __user *dirty_bitmap; /* one bit per page */ 538 __u64 padding2; 539 }; 540 }; 541 542 /* for KVM_SET_SIGNAL_MASK */ 543 struct kvm_signal_mask { 544 __u32 len; 545 __u8 sigset[]; 546 }; 547 548 /* for KVM_TPR_ACCESS_REPORTING */ 549 struct kvm_tpr_access_ctl { 550 __u32 enabled; 551 __u32 flags; 552 __u32 reserved[8]; 553 }; 554 555 /* for KVM_SET_VAPIC_ADDR */ 556 struct kvm_vapic_addr { 557 __u64 vapic_addr; 558 }; 559 560 /* for KVM_SET_MP_STATE */ 561 562 /* not all states are valid on all architectures */ 563 #define KVM_MP_STATE_RUNNABLE 0 564 #define KVM_MP_STATE_UNINITIALIZED 1 565 #define KVM_MP_STATE_INIT_RECEIVED 2 566 #define KVM_MP_STATE_HALTED 3 567 #define KVM_MP_STATE_SIPI_RECEIVED 4 568 #define KVM_MP_STATE_STOPPED 5 569 #define KVM_MP_STATE_CHECK_STOP 6 570 #define KVM_MP_STATE_OPERATING 7 571 #define KVM_MP_STATE_LOAD 8 572 #define KVM_MP_STATE_AP_RESET_HOLD 9 573 #define KVM_MP_STATE_SUSPENDED 10 574 575 struct kvm_mp_state { 576 __u32 mp_state; 577 }; 578 579 /* for KVM_SET_GUEST_DEBUG */ 580 581 #define KVM_GUESTDBG_ENABLE 0x00000001 582 #define KVM_GUESTDBG_SINGLESTEP 0x00000002 583 584 struct kvm_guest_debug { 585 __u32 control; 586 __u32 pad; 587 struct kvm_guest_debug_arch arch; 588 }; 589 590 enum { 591 kvm_ioeventfd_flag_nr_datamatch, 592 kvm_ioeventfd_flag_nr_pio, 593 kvm_ioeventfd_flag_nr_deassign, 594 kvm_ioeventfd_flag_nr_virtio_ccw_notify, 595 kvm_ioeventfd_flag_nr_fast_mmio, 596 kvm_ioeventfd_flag_nr_max, 597 }; 598 599 #define KVM_IOEVENTFD_FLAG_DATAMATCH (1 << kvm_ioeventfd_flag_nr_datamatch) 600 #define KVM_IOEVENTFD_FLAG_PIO (1 << kvm_ioeventfd_flag_nr_pio) 601 #define KVM_IOEVENTFD_FLAG_DEASSIGN (1 << kvm_ioeventfd_flag_nr_deassign) 602 #define KVM_IOEVENTFD_FLAG_VIRTIO_CCW_NOTIFY \ 603 (1 << kvm_ioeventfd_flag_nr_virtio_ccw_notify) 604 605 #define KVM_IOEVENTFD_VALID_FLAG_MASK ((1 << kvm_ioeventfd_flag_nr_max) - 1) 606 607 struct kvm_ioeventfd { 608 __u64 datamatch; 609 __u64 addr; /* legal pio/mmio address */ 610 __u32 len; /* 1, 2, 4, or 8 bytes; or 0 to ignore length */ 611 __s32 fd; 612 __u32 flags; 613 __u8 pad[36]; 614 }; 615 616 #define KVM_X86_DISABLE_EXITS_MWAIT (1 << 0) 617 #define KVM_X86_DISABLE_EXITS_HLT (1 << 1) 618 #define KVM_X86_DISABLE_EXITS_PAUSE (1 << 2) 619 #define KVM_X86_DISABLE_EXITS_CSTATE (1 << 3) 620 #define KVM_X86_DISABLE_VALID_EXITS (KVM_X86_DISABLE_EXITS_MWAIT | \ 621 KVM_X86_DISABLE_EXITS_HLT | \ 622 KVM_X86_DISABLE_EXITS_PAUSE | \ 623 KVM_X86_DISABLE_EXITS_CSTATE) 624 625 /* for KVM_ENABLE_CAP */ 626 struct kvm_enable_cap { 627 /* in */ 628 __u32 cap; 629 __u32 flags; 630 __u64 args[4]; 631 __u8 pad[64]; 632 }; 633 634 #define KVMIO 0xAE 635 636 /* machine type bits, to be used as argument to KVM_CREATE_VM */ 637 #define KVM_VM_S390_UCONTROL 1 638 639 /* on ppc, 0 indicate default, 1 should force HV and 2 PR */ 640 #define KVM_VM_PPC_HV 1 641 #define KVM_VM_PPC_PR 2 642 643 /* on MIPS, 0 indicates auto, 1 forces VZ ASE, 2 forces trap & emulate */ 644 #define KVM_VM_MIPS_AUTO 0 645 #define KVM_VM_MIPS_VZ 1 646 #define KVM_VM_MIPS_TE 2 647 648 #define KVM_S390_SIE_PAGE_OFFSET 1 649 650 /* 651 * On arm64, machine type can be used to request the physical 652 * address size for the VM. Bits[7-0] are reserved for the guest 653 * PA size shift (i.e, log2(PA_Size)). For backward compatibility, 654 * value 0 implies the default IPA size, 40bits. 655 */ 656 #define KVM_VM_TYPE_ARM_IPA_SIZE_MASK 0xffULL 657 #define KVM_VM_TYPE_ARM_IPA_SIZE(x) \ 658 ((x) & KVM_VM_TYPE_ARM_IPA_SIZE_MASK) 659 /* 660 * ioctls for /dev/kvm fds: 661 */ 662 #define KVM_GET_API_VERSION _IO(KVMIO, 0x00) 663 #define KVM_CREATE_VM _IO(KVMIO, 0x01) /* returns a VM fd */ 664 #define KVM_GET_MSR_INDEX_LIST _IOWR(KVMIO, 0x02, struct kvm_msr_list) 665 666 #define KVM_S390_ENABLE_SIE _IO(KVMIO, 0x06) 667 /* 668 * Check if a kvm extension is available. Argument is extension number, 669 * return is 1 (yes) or 0 (no, sorry). 670 */ 671 #define KVM_CHECK_EXTENSION _IO(KVMIO, 0x03) 672 /* 673 * Get size for mmap(vcpu_fd) 674 */ 675 #define KVM_GET_VCPU_MMAP_SIZE _IO(KVMIO, 0x04) /* in bytes */ 676 #define KVM_GET_SUPPORTED_CPUID _IOWR(KVMIO, 0x05, struct kvm_cpuid2) 677 #define KVM_GET_EMULATED_CPUID _IOWR(KVMIO, 0x09, struct kvm_cpuid2) 678 #define KVM_GET_MSR_FEATURE_INDEX_LIST _IOWR(KVMIO, 0x0a, struct kvm_msr_list) 679 680 /* 681 * Extension capability list. 682 */ 683 #define KVM_CAP_IRQCHIP 0 684 #define KVM_CAP_HLT 1 685 #define KVM_CAP_MMU_SHADOW_CACHE_CONTROL 2 686 #define KVM_CAP_USER_MEMORY 3 687 #define KVM_CAP_SET_TSS_ADDR 4 688 #define KVM_CAP_VAPIC 6 689 #define KVM_CAP_EXT_CPUID 7 690 #define KVM_CAP_CLOCKSOURCE 8 691 #define KVM_CAP_NR_VCPUS 9 /* returns recommended max vcpus per vm */ 692 #define KVM_CAP_NR_MEMSLOTS 10 /* returns max memory slots per vm */ 693 #define KVM_CAP_PIT 11 694 #define KVM_CAP_NOP_IO_DELAY 12 695 #define KVM_CAP_PV_MMU 13 696 #define KVM_CAP_MP_STATE 14 697 #define KVM_CAP_COALESCED_MMIO 15 698 #define KVM_CAP_SYNC_MMU 16 /* Changes to host mmap are reflected in guest */ 699 #define KVM_CAP_IOMMU 18 700 /* Bug in KVM_SET_USER_MEMORY_REGION fixed: */ 701 #define KVM_CAP_DESTROY_MEMORY_REGION_WORKS 21 702 #define KVM_CAP_USER_NMI 22 703 #define KVM_CAP_SET_GUEST_DEBUG 23 704 #ifdef __KVM_HAVE_PIT 705 #define KVM_CAP_REINJECT_CONTROL 24 706 #endif 707 #define KVM_CAP_IRQ_ROUTING 25 708 #define KVM_CAP_IRQ_INJECT_STATUS 26 709 #define KVM_CAP_ASSIGN_DEV_IRQ 29 710 /* Another bug in KVM_SET_USER_MEMORY_REGION fixed: */ 711 #define KVM_CAP_JOIN_MEMORY_REGIONS_WORKS 30 712 #ifdef __KVM_HAVE_MCE 713 #define KVM_CAP_MCE 31 714 #endif 715 #define KVM_CAP_IRQFD 32 716 #ifdef __KVM_HAVE_PIT 717 #define KVM_CAP_PIT2 33 718 #endif 719 #define KVM_CAP_SET_BOOT_CPU_ID 34 720 #ifdef __KVM_HAVE_PIT_STATE2 721 #define KVM_CAP_PIT_STATE2 35 722 #endif 723 #define KVM_CAP_IOEVENTFD 36 724 #define KVM_CAP_SET_IDENTITY_MAP_ADDR 37 725 #ifdef __KVM_HAVE_XEN_HVM 726 #define KVM_CAP_XEN_HVM 38 727 #endif 728 #define KVM_CAP_ADJUST_CLOCK 39 729 #define KVM_CAP_INTERNAL_ERROR_DATA 40 730 #ifdef __KVM_HAVE_VCPU_EVENTS 731 #define KVM_CAP_VCPU_EVENTS 41 732 #endif 733 #define KVM_CAP_S390_PSW 42 734 #define KVM_CAP_PPC_SEGSTATE 43 735 #define KVM_CAP_HYPERV 44 736 #define KVM_CAP_HYPERV_VAPIC 45 737 #define KVM_CAP_HYPERV_SPIN 46 738 #define KVM_CAP_PCI_SEGMENT 47 739 #define KVM_CAP_PPC_PAIRED_SINGLES 48 740 #define KVM_CAP_INTR_SHADOW 49 741 #ifdef __KVM_HAVE_DEBUGREGS 742 #define KVM_CAP_DEBUGREGS 50 743 #endif 744 #define KVM_CAP_X86_ROBUST_SINGLESTEP 51 745 #define KVM_CAP_PPC_OSI 52 746 #define KVM_CAP_PPC_UNSET_IRQ 53 747 #define KVM_CAP_ENABLE_CAP 54 748 #ifdef __KVM_HAVE_XSAVE 749 #define KVM_CAP_XSAVE 55 750 #endif 751 #ifdef __KVM_HAVE_XCRS 752 #define KVM_CAP_XCRS 56 753 #endif 754 #define KVM_CAP_PPC_GET_PVINFO 57 755 #define KVM_CAP_PPC_IRQ_LEVEL 58 756 #define KVM_CAP_ASYNC_PF 59 757 #define KVM_CAP_TSC_CONTROL 60 758 #define KVM_CAP_GET_TSC_KHZ 61 759 #define KVM_CAP_PPC_BOOKE_SREGS 62 760 #define KVM_CAP_SPAPR_TCE 63 761 #define KVM_CAP_PPC_SMT 64 762 #define KVM_CAP_PPC_RMA 65 763 #define KVM_CAP_MAX_VCPUS 66 /* returns max vcpus per vm */ 764 #define KVM_CAP_PPC_HIOR 67 765 #define KVM_CAP_PPC_PAPR 68 766 #define KVM_CAP_SW_TLB 69 767 #define KVM_CAP_ONE_REG 70 768 #define KVM_CAP_S390_GMAP 71 769 #define KVM_CAP_TSC_DEADLINE_TIMER 72 770 #define KVM_CAP_S390_UCONTROL 73 771 #define KVM_CAP_SYNC_REGS 74 772 #define KVM_CAP_PCI_2_3 75 773 #define KVM_CAP_KVMCLOCK_CTRL 76 774 #define KVM_CAP_SIGNAL_MSI 77 775 #define KVM_CAP_PPC_GET_SMMU_INFO 78 776 #define KVM_CAP_S390_COW 79 777 #define KVM_CAP_PPC_ALLOC_HTAB 80 778 #define KVM_CAP_READONLY_MEM 81 779 #define KVM_CAP_IRQFD_RESAMPLE 82 780 #define KVM_CAP_PPC_BOOKE_WATCHDOG 83 781 #define KVM_CAP_PPC_HTAB_FD 84 782 #define KVM_CAP_S390_CSS_SUPPORT 85 783 #define KVM_CAP_PPC_EPR 86 784 #define KVM_CAP_ARM_PSCI 87 785 #define KVM_CAP_ARM_SET_DEVICE_ADDR 88 786 #define KVM_CAP_DEVICE_CTRL 89 787 #define KVM_CAP_IRQ_MPIC 90 788 #define KVM_CAP_PPC_RTAS 91 789 #define KVM_CAP_IRQ_XICS 92 790 #define KVM_CAP_ARM_EL1_32BIT 93 791 #define KVM_CAP_SPAPR_MULTITCE 94 792 #define KVM_CAP_EXT_EMUL_CPUID 95 793 #define KVM_CAP_HYPERV_TIME 96 794 #define KVM_CAP_IOAPIC_POLARITY_IGNORED 97 795 #define KVM_CAP_ENABLE_CAP_VM 98 796 #define KVM_CAP_S390_IRQCHIP 99 797 #define KVM_CAP_IOEVENTFD_NO_LENGTH 100 798 #define KVM_CAP_VM_ATTRIBUTES 101 799 #define KVM_CAP_ARM_PSCI_0_2 102 800 #define KVM_CAP_PPC_FIXUP_HCALL 103 801 #define KVM_CAP_PPC_ENABLE_HCALL 104 802 #define KVM_CAP_CHECK_EXTENSION_VM 105 803 #define KVM_CAP_S390_USER_SIGP 106 804 #define KVM_CAP_S390_VECTOR_REGISTERS 107 805 #define KVM_CAP_S390_MEM_OP 108 806 #define KVM_CAP_S390_USER_STSI 109 807 #define KVM_CAP_S390_SKEYS 110 808 #define KVM_CAP_MIPS_FPU 111 809 #define KVM_CAP_MIPS_MSA 112 810 #define KVM_CAP_S390_INJECT_IRQ 113 811 #define KVM_CAP_S390_IRQ_STATE 114 812 #define KVM_CAP_PPC_HWRNG 115 813 #define KVM_CAP_DISABLE_QUIRKS 116 814 #define KVM_CAP_X86_SMM 117 815 #define KVM_CAP_MULTI_ADDRESS_SPACE 118 816 #define KVM_CAP_GUEST_DEBUG_HW_BPS 119 817 #define KVM_CAP_GUEST_DEBUG_HW_WPS 120 818 #define KVM_CAP_SPLIT_IRQCHIP 121 819 #define KVM_CAP_IOEVENTFD_ANY_LENGTH 122 820 #define KVM_CAP_HYPERV_SYNIC 123 821 #define KVM_CAP_S390_RI 124 822 #define KVM_CAP_SPAPR_TCE_64 125 823 #define KVM_CAP_ARM_PMU_V3 126 824 #define KVM_CAP_VCPU_ATTRIBUTES 127 825 #define KVM_CAP_MAX_VCPU_ID 128 826 #define KVM_CAP_X2APIC_API 129 827 #define KVM_CAP_S390_USER_INSTR0 130 828 #define KVM_CAP_MSI_DEVID 131 829 #define KVM_CAP_PPC_HTM 132 830 #define KVM_CAP_SPAPR_RESIZE_HPT 133 831 #define KVM_CAP_PPC_MMU_RADIX 134 832 #define KVM_CAP_PPC_MMU_HASH_V3 135 833 #define KVM_CAP_IMMEDIATE_EXIT 136 834 #define KVM_CAP_MIPS_VZ 137 835 #define KVM_CAP_MIPS_TE 138 836 #define KVM_CAP_MIPS_64BIT 139 837 #define KVM_CAP_S390_GS 140 838 #define KVM_CAP_S390_AIS 141 839 #define KVM_CAP_SPAPR_TCE_VFIO 142 840 #define KVM_CAP_X86_DISABLE_EXITS 143 841 #define KVM_CAP_ARM_USER_IRQ 144 842 #define KVM_CAP_S390_CMMA_MIGRATION 145 843 #define KVM_CAP_PPC_FWNMI 146 844 #define KVM_CAP_PPC_SMT_POSSIBLE 147 845 #define KVM_CAP_HYPERV_SYNIC2 148 846 #define KVM_CAP_HYPERV_VP_INDEX 149 847 #define KVM_CAP_S390_AIS_MIGRATION 150 848 #define KVM_CAP_PPC_GET_CPU_CHAR 151 849 #define KVM_CAP_S390_BPB 152 850 #define KVM_CAP_GET_MSR_FEATURES 153 851 #define KVM_CAP_HYPERV_EVENTFD 154 852 #define KVM_CAP_HYPERV_TLBFLUSH 155 853 #define KVM_CAP_S390_HPAGE_1M 156 854 #define KVM_CAP_NESTED_STATE 157 855 #define KVM_CAP_ARM_INJECT_SERROR_ESR 158 856 #define KVM_CAP_MSR_PLATFORM_INFO 159 857 #define KVM_CAP_PPC_NESTED_HV 160 858 #define KVM_CAP_HYPERV_SEND_IPI 161 859 #define KVM_CAP_COALESCED_PIO 162 860 #define KVM_CAP_HYPERV_ENLIGHTENED_VMCS 163 861 #define KVM_CAP_EXCEPTION_PAYLOAD 164 862 #define KVM_CAP_ARM_VM_IPA_SIZE 165 863 #define KVM_CAP_MANUAL_DIRTY_LOG_PROTECT 166 /* Obsolete */ 864 #define KVM_CAP_HYPERV_CPUID 167 865 #define KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2 168 866 #define KVM_CAP_PPC_IRQ_XIVE 169 867 #define KVM_CAP_ARM_SVE 170 868 #define KVM_CAP_ARM_PTRAUTH_ADDRESS 171 869 #define KVM_CAP_ARM_PTRAUTH_GENERIC 172 870 #define KVM_CAP_PMU_EVENT_FILTER 173 871 #define KVM_CAP_ARM_IRQ_LINE_LAYOUT_2 174 872 #define KVM_CAP_HYPERV_DIRECT_TLBFLUSH 175 873 #define KVM_CAP_PPC_GUEST_DEBUG_SSTEP 176 874 #define KVM_CAP_ARM_NISV_TO_USER 177 875 #define KVM_CAP_ARM_INJECT_EXT_DABT 178 876 #define KVM_CAP_S390_VCPU_RESETS 179 877 #define KVM_CAP_S390_PROTECTED 180 878 #define KVM_CAP_PPC_SECURE_GUEST 181 879 #define KVM_CAP_HALT_POLL 182 880 #define KVM_CAP_ASYNC_PF_INT 183 881 #define KVM_CAP_LAST_CPU 184 882 #define KVM_CAP_SMALLER_MAXPHYADDR 185 883 #define KVM_CAP_S390_DIAG318 186 884 #define KVM_CAP_STEAL_TIME 187 885 #define KVM_CAP_X86_USER_SPACE_MSR 188 886 #define KVM_CAP_X86_MSR_FILTER 189 887 #define KVM_CAP_ENFORCE_PV_FEATURE_CPUID 190 888 #define KVM_CAP_SYS_HYPERV_CPUID 191 889 #define KVM_CAP_DIRTY_LOG_RING 192 890 #define KVM_CAP_X86_BUS_LOCK_EXIT 193 891 #define KVM_CAP_PPC_DAWR1 194 892 #define KVM_CAP_SET_GUEST_DEBUG2 195 893 #define KVM_CAP_SGX_ATTRIBUTE 196 894 #define KVM_CAP_VM_COPY_ENC_CONTEXT_FROM 197 895 #define KVM_CAP_PTP_KVM 198 896 #define KVM_CAP_HYPERV_ENFORCE_CPUID 199 897 #define KVM_CAP_SREGS2 200 898 #define KVM_CAP_EXIT_HYPERCALL 201 899 #define KVM_CAP_PPC_RPT_INVALIDATE 202 900 #define KVM_CAP_BINARY_STATS_FD 203 901 #define KVM_CAP_EXIT_ON_EMULATION_FAILURE 204 902 #define KVM_CAP_ARM_MTE 205 903 #define KVM_CAP_VM_MOVE_ENC_CONTEXT_FROM 206 904 #define KVM_CAP_VM_GPA_BITS 207 905 #define KVM_CAP_XSAVE2 208 906 #define KVM_CAP_SYS_ATTRIBUTES 209 907 #define KVM_CAP_PPC_AIL_MODE_3 210 908 #define KVM_CAP_S390_MEM_OP_EXTENSION 211 909 #define KVM_CAP_PMU_CAPABILITY 212 910 #define KVM_CAP_DISABLE_QUIRKS2 213 911 #define KVM_CAP_VM_TSC_CONTROL 214 912 #define KVM_CAP_SYSTEM_EVENT_DATA 215 913 #define KVM_CAP_ARM_SYSTEM_SUSPEND 216 914 #define KVM_CAP_S390_PROTECTED_DUMP 217 915 #define KVM_CAP_X86_TRIPLE_FAULT_EVENT 218 916 #define KVM_CAP_X86_NOTIFY_VMEXIT 219 917 #define KVM_CAP_VM_DISABLE_NX_HUGE_PAGES 220 918 #define KVM_CAP_S390_ZPCI_OP 221 919 #define KVM_CAP_S390_CPU_TOPOLOGY 222 920 #define KVM_CAP_DIRTY_LOG_RING_ACQ_REL 223 921 #define KVM_CAP_S390_PROTECTED_ASYNC_DISABLE 224 922 #define KVM_CAP_DIRTY_LOG_RING_WITH_BITMAP 225 923 #define KVM_CAP_PMU_EVENT_MASKED_EVENTS 226 924 #define KVM_CAP_COUNTER_OFFSET 227 925 #define KVM_CAP_ARM_EAGER_SPLIT_CHUNK_SIZE 228 926 #define KVM_CAP_ARM_SUPPORTED_BLOCK_SIZES 229 927 #define KVM_CAP_ARM_SUPPORTED_REG_MASK_RANGES 230 928 #define KVM_CAP_USER_MEMORY2 231 929 #define KVM_CAP_MEMORY_FAULT_INFO 232 930 #define KVM_CAP_MEMORY_ATTRIBUTES 233 931 #define KVM_CAP_GUEST_MEMFD 234 932 #define KVM_CAP_VM_TYPES 235 933 #define KVM_CAP_PRE_FAULT_MEMORY 236 934 #define KVM_CAP_X86_APIC_BUS_CYCLES_NS 237 935 #define KVM_CAP_X86_GUEST_MODE 238 936 937 struct kvm_irq_routing_irqchip { 938 __u32 irqchip; 939 __u32 pin; 940 }; 941 942 struct kvm_irq_routing_msi { 943 __u32 address_lo; 944 __u32 address_hi; 945 __u32 data; 946 union { 947 __u32 pad; 948 __u32 devid; 949 }; 950 }; 951 952 struct kvm_irq_routing_s390_adapter { 953 __u64 ind_addr; 954 __u64 summary_addr; 955 __u64 ind_offset; 956 __u32 summary_offset; 957 __u32 adapter_id; 958 }; 959 960 struct kvm_irq_routing_hv_sint { 961 __u32 vcpu; 962 __u32 sint; 963 }; 964 965 struct kvm_irq_routing_xen_evtchn { 966 __u32 port; 967 __u32 vcpu; 968 __u32 priority; 969 }; 970 971 #define KVM_IRQ_ROUTING_XEN_EVTCHN_PRIO_2LEVEL ((__u32)(-1)) 972 973 /* gsi routing entry types */ 974 #define KVM_IRQ_ROUTING_IRQCHIP 1 975 #define KVM_IRQ_ROUTING_MSI 2 976 #define KVM_IRQ_ROUTING_S390_ADAPTER 3 977 #define KVM_IRQ_ROUTING_HV_SINT 4 978 #define KVM_IRQ_ROUTING_XEN_EVTCHN 5 979 980 struct kvm_irq_routing_entry { 981 __u32 gsi; 982 __u32 type; 983 __u32 flags; 984 __u32 pad; 985 union { 986 struct kvm_irq_routing_irqchip irqchip; 987 struct kvm_irq_routing_msi msi; 988 struct kvm_irq_routing_s390_adapter adapter; 989 struct kvm_irq_routing_hv_sint hv_sint; 990 struct kvm_irq_routing_xen_evtchn xen_evtchn; 991 __u32 pad[8]; 992 } u; 993 }; 994 995 struct kvm_irq_routing { 996 __u32 nr; 997 __u32 flags; 998 struct kvm_irq_routing_entry entries[]; 999 }; 1000 1001 #define KVM_IRQFD_FLAG_DEASSIGN (1 << 0) 1002 /* 1003 * Available with KVM_CAP_IRQFD_RESAMPLE 1004 * 1005 * KVM_IRQFD_FLAG_RESAMPLE indicates resamplefd is valid and specifies 1006 * the irqfd to operate in resampling mode for level triggered interrupt 1007 * emulation. See Documentation/virt/kvm/api.rst. 1008 */ 1009 #define KVM_IRQFD_FLAG_RESAMPLE (1 << 1) 1010 1011 struct kvm_irqfd { 1012 __u32 fd; 1013 __u32 gsi; 1014 __u32 flags; 1015 __u32 resamplefd; 1016 __u8 pad[16]; 1017 }; 1018 1019 /* For KVM_CAP_ADJUST_CLOCK */ 1020 1021 /* Do not use 1, KVM_CHECK_EXTENSION returned it before we had flags. */ 1022 #define KVM_CLOCK_TSC_STABLE 2 1023 #define KVM_CLOCK_REALTIME (1 << 2) 1024 #define KVM_CLOCK_HOST_TSC (1 << 3) 1025 1026 struct kvm_clock_data { 1027 __u64 clock; 1028 __u32 flags; 1029 __u32 pad0; 1030 __u64 realtime; 1031 __u64 host_tsc; 1032 __u32 pad[4]; 1033 }; 1034 1035 /* For KVM_CAP_SW_TLB */ 1036 1037 #define KVM_MMU_FSL_BOOKE_NOHV 0 1038 #define KVM_MMU_FSL_BOOKE_HV 1 1039 1040 struct kvm_config_tlb { 1041 __u64 params; 1042 __u64 array; 1043 __u32 mmu_type; 1044 __u32 array_len; 1045 }; 1046 1047 struct kvm_dirty_tlb { 1048 __u64 bitmap; 1049 __u32 num_dirty; 1050 }; 1051 1052 /* Available with KVM_CAP_ONE_REG */ 1053 1054 #define KVM_REG_ARCH_MASK 0xff00000000000000ULL 1055 #define KVM_REG_GENERIC 0x0000000000000000ULL 1056 1057 /* 1058 * Architecture specific registers are to be defined in arch headers and 1059 * ORed with the arch identifier. 1060 */ 1061 #define KVM_REG_PPC 0x1000000000000000ULL 1062 #define KVM_REG_X86 0x2000000000000000ULL 1063 #define KVM_REG_IA64 0x3000000000000000ULL 1064 #define KVM_REG_ARM 0x4000000000000000ULL 1065 #define KVM_REG_S390 0x5000000000000000ULL 1066 #define KVM_REG_ARM64 0x6000000000000000ULL 1067 #define KVM_REG_MIPS 0x7000000000000000ULL 1068 #define KVM_REG_RISCV 0x8000000000000000ULL 1069 #define KVM_REG_LOONGARCH 0x9000000000000000ULL 1070 1071 #define KVM_REG_SIZE_SHIFT 52 1072 #define KVM_REG_SIZE_MASK 0x00f0000000000000ULL 1073 #define KVM_REG_SIZE_U8 0x0000000000000000ULL 1074 #define KVM_REG_SIZE_U16 0x0010000000000000ULL 1075 #define KVM_REG_SIZE_U32 0x0020000000000000ULL 1076 #define KVM_REG_SIZE_U64 0x0030000000000000ULL 1077 #define KVM_REG_SIZE_U128 0x0040000000000000ULL 1078 #define KVM_REG_SIZE_U256 0x0050000000000000ULL 1079 #define KVM_REG_SIZE_U512 0x0060000000000000ULL 1080 #define KVM_REG_SIZE_U1024 0x0070000000000000ULL 1081 #define KVM_REG_SIZE_U2048 0x0080000000000000ULL 1082 1083 struct kvm_reg_list { 1084 __u64 n; /* number of regs */ 1085 __u64 reg[]; 1086 }; 1087 1088 struct kvm_one_reg { 1089 __u64 id; 1090 __u64 addr; 1091 }; 1092 1093 #define KVM_MSI_VALID_DEVID (1U << 0) 1094 struct kvm_msi { 1095 __u32 address_lo; 1096 __u32 address_hi; 1097 __u32 data; 1098 __u32 flags; 1099 __u32 devid; 1100 __u8 pad[12]; 1101 }; 1102 1103 struct kvm_arm_device_addr { 1104 __u64 id; 1105 __u64 addr; 1106 }; 1107 1108 /* 1109 * Device control API, available with KVM_CAP_DEVICE_CTRL 1110 */ 1111 #define KVM_CREATE_DEVICE_TEST 1 1112 1113 struct kvm_create_device { 1114 __u32 type; /* in: KVM_DEV_TYPE_xxx */ 1115 __u32 fd; /* out: device handle */ 1116 __u32 flags; /* in: KVM_CREATE_DEVICE_xxx */ 1117 }; 1118 1119 struct kvm_device_attr { 1120 __u32 flags; /* no flags currently defined */ 1121 __u32 group; /* device-defined */ 1122 __u64 attr; /* group-defined */ 1123 __u64 addr; /* userspace address of attr data */ 1124 }; 1125 1126 #define KVM_DEV_VFIO_FILE 1 1127 1128 #define KVM_DEV_VFIO_FILE_ADD 1 1129 #define KVM_DEV_VFIO_FILE_DEL 2 1130 1131 /* KVM_DEV_VFIO_GROUP aliases are for compile time uapi compatibility */ 1132 #define KVM_DEV_VFIO_GROUP KVM_DEV_VFIO_FILE 1133 1134 #define KVM_DEV_VFIO_GROUP_ADD KVM_DEV_VFIO_FILE_ADD 1135 #define KVM_DEV_VFIO_GROUP_DEL KVM_DEV_VFIO_FILE_DEL 1136 #define KVM_DEV_VFIO_GROUP_SET_SPAPR_TCE 3 1137 1138 enum kvm_device_type { 1139 KVM_DEV_TYPE_FSL_MPIC_20 = 1, 1140 #define KVM_DEV_TYPE_FSL_MPIC_20 KVM_DEV_TYPE_FSL_MPIC_20 1141 KVM_DEV_TYPE_FSL_MPIC_42, 1142 #define KVM_DEV_TYPE_FSL_MPIC_42 KVM_DEV_TYPE_FSL_MPIC_42 1143 KVM_DEV_TYPE_XICS, 1144 #define KVM_DEV_TYPE_XICS KVM_DEV_TYPE_XICS 1145 KVM_DEV_TYPE_VFIO, 1146 #define KVM_DEV_TYPE_VFIO KVM_DEV_TYPE_VFIO 1147 KVM_DEV_TYPE_ARM_VGIC_V2, 1148 #define KVM_DEV_TYPE_ARM_VGIC_V2 KVM_DEV_TYPE_ARM_VGIC_V2 1149 KVM_DEV_TYPE_FLIC, 1150 #define KVM_DEV_TYPE_FLIC KVM_DEV_TYPE_FLIC 1151 KVM_DEV_TYPE_ARM_VGIC_V3, 1152 #define KVM_DEV_TYPE_ARM_VGIC_V3 KVM_DEV_TYPE_ARM_VGIC_V3 1153 KVM_DEV_TYPE_ARM_VGIC_ITS, 1154 #define KVM_DEV_TYPE_ARM_VGIC_ITS KVM_DEV_TYPE_ARM_VGIC_ITS 1155 KVM_DEV_TYPE_XIVE, 1156 #define KVM_DEV_TYPE_XIVE KVM_DEV_TYPE_XIVE 1157 KVM_DEV_TYPE_ARM_PV_TIME, 1158 #define KVM_DEV_TYPE_ARM_PV_TIME KVM_DEV_TYPE_ARM_PV_TIME 1159 KVM_DEV_TYPE_RISCV_AIA, 1160 #define KVM_DEV_TYPE_RISCV_AIA KVM_DEV_TYPE_RISCV_AIA 1161 KVM_DEV_TYPE_LOONGARCH_IPI, 1162 #define KVM_DEV_TYPE_LOONGARCH_IPI KVM_DEV_TYPE_LOONGARCH_IPI 1163 KVM_DEV_TYPE_LOONGARCH_EIOINTC, 1164 #define KVM_DEV_TYPE_LOONGARCH_EIOINTC KVM_DEV_TYPE_LOONGARCH_EIOINTC 1165 KVM_DEV_TYPE_LOONGARCH_PCHPIC, 1166 #define KVM_DEV_TYPE_LOONGARCH_PCHPIC KVM_DEV_TYPE_LOONGARCH_PCHPIC 1167 1168 KVM_DEV_TYPE_MAX, 1169 1170 }; 1171 1172 struct kvm_vfio_spapr_tce { 1173 __s32 groupfd; 1174 __s32 tablefd; 1175 }; 1176 1177 /* 1178 * KVM_CREATE_VCPU receives as a parameter the vcpu slot, and returns 1179 * a vcpu fd. 1180 */ 1181 #define KVM_CREATE_VCPU _IO(KVMIO, 0x41) 1182 #define KVM_GET_DIRTY_LOG _IOW(KVMIO, 0x42, struct kvm_dirty_log) 1183 #define KVM_SET_NR_MMU_PAGES _IO(KVMIO, 0x44) 1184 #define KVM_GET_NR_MMU_PAGES _IO(KVMIO, 0x45) /* deprecated */ 1185 #define KVM_SET_USER_MEMORY_REGION _IOW(KVMIO, 0x46, \ 1186 struct kvm_userspace_memory_region) 1187 #define KVM_SET_TSS_ADDR _IO(KVMIO, 0x47) 1188 #define KVM_SET_IDENTITY_MAP_ADDR _IOW(KVMIO, 0x48, __u64) 1189 #define KVM_SET_USER_MEMORY_REGION2 _IOW(KVMIO, 0x49, \ 1190 struct kvm_userspace_memory_region2) 1191 1192 /* enable ucontrol for s390 */ 1193 #define KVM_S390_UCAS_MAP _IOW(KVMIO, 0x50, struct kvm_s390_ucas_mapping) 1194 #define KVM_S390_UCAS_UNMAP _IOW(KVMIO, 0x51, struct kvm_s390_ucas_mapping) 1195 #define KVM_S390_VCPU_FAULT _IOW(KVMIO, 0x52, unsigned long) 1196 1197 /* Device model IOC */ 1198 #define KVM_CREATE_IRQCHIP _IO(KVMIO, 0x60) 1199 #define KVM_IRQ_LINE _IOW(KVMIO, 0x61, struct kvm_irq_level) 1200 #define KVM_GET_IRQCHIP _IOWR(KVMIO, 0x62, struct kvm_irqchip) 1201 #define KVM_SET_IRQCHIP _IOR(KVMIO, 0x63, struct kvm_irqchip) 1202 #define KVM_CREATE_PIT _IO(KVMIO, 0x64) 1203 #define KVM_GET_PIT _IOWR(KVMIO, 0x65, struct kvm_pit_state) 1204 #define KVM_SET_PIT _IOR(KVMIO, 0x66, struct kvm_pit_state) 1205 #define KVM_IRQ_LINE_STATUS _IOWR(KVMIO, 0x67, struct kvm_irq_level) 1206 #define KVM_REGISTER_COALESCED_MMIO \ 1207 _IOW(KVMIO, 0x67, struct kvm_coalesced_mmio_zone) 1208 #define KVM_UNREGISTER_COALESCED_MMIO \ 1209 _IOW(KVMIO, 0x68, struct kvm_coalesced_mmio_zone) 1210 #define KVM_SET_GSI_ROUTING _IOW(KVMIO, 0x6a, struct kvm_irq_routing) 1211 #define KVM_REINJECT_CONTROL _IO(KVMIO, 0x71) 1212 #define KVM_IRQFD _IOW(KVMIO, 0x76, struct kvm_irqfd) 1213 #define KVM_CREATE_PIT2 _IOW(KVMIO, 0x77, struct kvm_pit_config) 1214 #define KVM_SET_BOOT_CPU_ID _IO(KVMIO, 0x78) 1215 #define KVM_IOEVENTFD _IOW(KVMIO, 0x79, struct kvm_ioeventfd) 1216 #define KVM_XEN_HVM_CONFIG _IOW(KVMIO, 0x7a, struct kvm_xen_hvm_config) 1217 #define KVM_SET_CLOCK _IOW(KVMIO, 0x7b, struct kvm_clock_data) 1218 #define KVM_GET_CLOCK _IOR(KVMIO, 0x7c, struct kvm_clock_data) 1219 /* Available with KVM_CAP_PIT_STATE2 */ 1220 #define KVM_GET_PIT2 _IOR(KVMIO, 0x9f, struct kvm_pit_state2) 1221 #define KVM_SET_PIT2 _IOW(KVMIO, 0xa0, struct kvm_pit_state2) 1222 /* Available with KVM_CAP_PPC_GET_PVINFO */ 1223 #define KVM_PPC_GET_PVINFO _IOW(KVMIO, 0xa1, struct kvm_ppc_pvinfo) 1224 /* Available with KVM_CAP_TSC_CONTROL for a vCPU, or with 1225 * KVM_CAP_VM_TSC_CONTROL to set defaults for a VM */ 1226 #define KVM_SET_TSC_KHZ _IO(KVMIO, 0xa2) 1227 #define KVM_GET_TSC_KHZ _IO(KVMIO, 0xa3) 1228 /* Available with KVM_CAP_SIGNAL_MSI */ 1229 #define KVM_SIGNAL_MSI _IOW(KVMIO, 0xa5, struct kvm_msi) 1230 /* Available with KVM_CAP_PPC_GET_SMMU_INFO */ 1231 #define KVM_PPC_GET_SMMU_INFO _IOR(KVMIO, 0xa6, struct kvm_ppc_smmu_info) 1232 /* Available with KVM_CAP_PPC_ALLOC_HTAB */ 1233 #define KVM_PPC_ALLOCATE_HTAB _IOWR(KVMIO, 0xa7, __u32) 1234 #define KVM_CREATE_SPAPR_TCE _IOW(KVMIO, 0xa8, struct kvm_create_spapr_tce) 1235 #define KVM_CREATE_SPAPR_TCE_64 _IOW(KVMIO, 0xa8, \ 1236 struct kvm_create_spapr_tce_64) 1237 /* Available with KVM_CAP_RMA */ 1238 #define KVM_ALLOCATE_RMA _IOR(KVMIO, 0xa9, struct kvm_allocate_rma) 1239 /* Available with KVM_CAP_PPC_HTAB_FD */ 1240 #define KVM_PPC_GET_HTAB_FD _IOW(KVMIO, 0xaa, struct kvm_get_htab_fd) 1241 /* Available with KVM_CAP_ARM_SET_DEVICE_ADDR */ 1242 #define KVM_ARM_SET_DEVICE_ADDR _IOW(KVMIO, 0xab, struct kvm_arm_device_addr) 1243 /* Available with KVM_CAP_PPC_RTAS */ 1244 #define KVM_PPC_RTAS_DEFINE_TOKEN _IOW(KVMIO, 0xac, struct kvm_rtas_token_args) 1245 /* Available with KVM_CAP_SPAPR_RESIZE_HPT */ 1246 #define KVM_PPC_RESIZE_HPT_PREPARE _IOR(KVMIO, 0xad, struct kvm_ppc_resize_hpt) 1247 #define KVM_PPC_RESIZE_HPT_COMMIT _IOR(KVMIO, 0xae, struct kvm_ppc_resize_hpt) 1248 /* Available with KVM_CAP_PPC_MMU_RADIX or KVM_CAP_PPC_MMU_HASH_V3 */ 1249 #define KVM_PPC_CONFIGURE_V3_MMU _IOW(KVMIO, 0xaf, struct kvm_ppc_mmuv3_cfg) 1250 /* Available with KVM_CAP_PPC_MMU_RADIX */ 1251 #define KVM_PPC_GET_RMMU_INFO _IOW(KVMIO, 0xb0, struct kvm_ppc_rmmu_info) 1252 /* Available with KVM_CAP_PPC_GET_CPU_CHAR */ 1253 #define KVM_PPC_GET_CPU_CHAR _IOR(KVMIO, 0xb1, struct kvm_ppc_cpu_char) 1254 /* Available with KVM_CAP_PMU_EVENT_FILTER */ 1255 #define KVM_SET_PMU_EVENT_FILTER _IOW(KVMIO, 0xb2, struct kvm_pmu_event_filter) 1256 #define KVM_PPC_SVM_OFF _IO(KVMIO, 0xb3) 1257 #define KVM_ARM_MTE_COPY_TAGS _IOR(KVMIO, 0xb4, struct kvm_arm_copy_mte_tags) 1258 /* Available with KVM_CAP_COUNTER_OFFSET */ 1259 #define KVM_ARM_SET_COUNTER_OFFSET _IOW(KVMIO, 0xb5, struct kvm_arm_counter_offset) 1260 #define KVM_ARM_GET_REG_WRITABLE_MASKS _IOR(KVMIO, 0xb6, struct reg_mask_range) 1261 1262 /* ioctl for vm fd */ 1263 #define KVM_CREATE_DEVICE _IOWR(KVMIO, 0xe0, struct kvm_create_device) 1264 1265 /* ioctls for fds returned by KVM_CREATE_DEVICE */ 1266 #define KVM_SET_DEVICE_ATTR _IOW(KVMIO, 0xe1, struct kvm_device_attr) 1267 #define KVM_GET_DEVICE_ATTR _IOW(KVMIO, 0xe2, struct kvm_device_attr) 1268 #define KVM_HAS_DEVICE_ATTR _IOW(KVMIO, 0xe3, struct kvm_device_attr) 1269 1270 /* 1271 * ioctls for vcpu fds 1272 */ 1273 #define KVM_RUN _IO(KVMIO, 0x80) 1274 #define KVM_GET_REGS _IOR(KVMIO, 0x81, struct kvm_regs) 1275 #define KVM_SET_REGS _IOW(KVMIO, 0x82, struct kvm_regs) 1276 #define KVM_GET_SREGS _IOR(KVMIO, 0x83, struct kvm_sregs) 1277 #define KVM_SET_SREGS _IOW(KVMIO, 0x84, struct kvm_sregs) 1278 #define KVM_TRANSLATE _IOWR(KVMIO, 0x85, struct kvm_translation) 1279 #define KVM_INTERRUPT _IOW(KVMIO, 0x86, struct kvm_interrupt) 1280 #define KVM_GET_MSRS _IOWR(KVMIO, 0x88, struct kvm_msrs) 1281 #define KVM_SET_MSRS _IOW(KVMIO, 0x89, struct kvm_msrs) 1282 #define KVM_SET_CPUID _IOW(KVMIO, 0x8a, struct kvm_cpuid) 1283 #define KVM_SET_SIGNAL_MASK _IOW(KVMIO, 0x8b, struct kvm_signal_mask) 1284 #define KVM_GET_FPU _IOR(KVMIO, 0x8c, struct kvm_fpu) 1285 #define KVM_SET_FPU _IOW(KVMIO, 0x8d, struct kvm_fpu) 1286 #define KVM_GET_LAPIC _IOR(KVMIO, 0x8e, struct kvm_lapic_state) 1287 #define KVM_SET_LAPIC _IOW(KVMIO, 0x8f, struct kvm_lapic_state) 1288 #define KVM_SET_CPUID2 _IOW(KVMIO, 0x90, struct kvm_cpuid2) 1289 #define KVM_GET_CPUID2 _IOWR(KVMIO, 0x91, struct kvm_cpuid2) 1290 /* Available with KVM_CAP_VAPIC */ 1291 #define KVM_TPR_ACCESS_REPORTING _IOWR(KVMIO, 0x92, struct kvm_tpr_access_ctl) 1292 /* Available with KVM_CAP_VAPIC */ 1293 #define KVM_SET_VAPIC_ADDR _IOW(KVMIO, 0x93, struct kvm_vapic_addr) 1294 /* valid for virtual machine (for floating interrupt)_and_ vcpu */ 1295 #define KVM_S390_INTERRUPT _IOW(KVMIO, 0x94, struct kvm_s390_interrupt) 1296 /* store status for s390 */ 1297 #define KVM_S390_STORE_STATUS_NOADDR (-1ul) 1298 #define KVM_S390_STORE_STATUS_PREFIXED (-2ul) 1299 #define KVM_S390_STORE_STATUS _IOW(KVMIO, 0x95, unsigned long) 1300 /* initial ipl psw for s390 */ 1301 #define KVM_S390_SET_INITIAL_PSW _IOW(KVMIO, 0x96, struct kvm_s390_psw) 1302 /* initial reset for s390 */ 1303 #define KVM_S390_INITIAL_RESET _IO(KVMIO, 0x97) 1304 #define KVM_GET_MP_STATE _IOR(KVMIO, 0x98, struct kvm_mp_state) 1305 #define KVM_SET_MP_STATE _IOW(KVMIO, 0x99, struct kvm_mp_state) 1306 /* Available with KVM_CAP_USER_NMI */ 1307 #define KVM_NMI _IO(KVMIO, 0x9a) 1308 /* Available with KVM_CAP_SET_GUEST_DEBUG */ 1309 #define KVM_SET_GUEST_DEBUG _IOW(KVMIO, 0x9b, struct kvm_guest_debug) 1310 /* MCE for x86 */ 1311 #define KVM_X86_SETUP_MCE _IOW(KVMIO, 0x9c, __u64) 1312 #define KVM_X86_GET_MCE_CAP_SUPPORTED _IOR(KVMIO, 0x9d, __u64) 1313 #define KVM_X86_SET_MCE _IOW(KVMIO, 0x9e, struct kvm_x86_mce) 1314 /* Available with KVM_CAP_VCPU_EVENTS */ 1315 #define KVM_GET_VCPU_EVENTS _IOR(KVMIO, 0x9f, struct kvm_vcpu_events) 1316 #define KVM_SET_VCPU_EVENTS _IOW(KVMIO, 0xa0, struct kvm_vcpu_events) 1317 /* Available with KVM_CAP_DEBUGREGS */ 1318 #define KVM_GET_DEBUGREGS _IOR(KVMIO, 0xa1, struct kvm_debugregs) 1319 #define KVM_SET_DEBUGREGS _IOW(KVMIO, 0xa2, struct kvm_debugregs) 1320 /* 1321 * vcpu version available with KVM_CAP_ENABLE_CAP 1322 * vm version available with KVM_CAP_ENABLE_CAP_VM 1323 */ 1324 #define KVM_ENABLE_CAP _IOW(KVMIO, 0xa3, struct kvm_enable_cap) 1325 /* Available with KVM_CAP_XSAVE */ 1326 #define KVM_GET_XSAVE _IOR(KVMIO, 0xa4, struct kvm_xsave) 1327 #define KVM_SET_XSAVE _IOW(KVMIO, 0xa5, struct kvm_xsave) 1328 /* Available with KVM_CAP_XCRS */ 1329 #define KVM_GET_XCRS _IOR(KVMIO, 0xa6, struct kvm_xcrs) 1330 #define KVM_SET_XCRS _IOW(KVMIO, 0xa7, struct kvm_xcrs) 1331 /* Available with KVM_CAP_SW_TLB */ 1332 #define KVM_DIRTY_TLB _IOW(KVMIO, 0xaa, struct kvm_dirty_tlb) 1333 /* Available with KVM_CAP_ONE_REG */ 1334 #define KVM_GET_ONE_REG _IOW(KVMIO, 0xab, struct kvm_one_reg) 1335 #define KVM_SET_ONE_REG _IOW(KVMIO, 0xac, struct kvm_one_reg) 1336 /* VM is being stopped by host */ 1337 #define KVM_KVMCLOCK_CTRL _IO(KVMIO, 0xad) 1338 #define KVM_ARM_VCPU_INIT _IOW(KVMIO, 0xae, struct kvm_vcpu_init) 1339 #define KVM_ARM_PREFERRED_TARGET _IOR(KVMIO, 0xaf, struct kvm_vcpu_init) 1340 #define KVM_GET_REG_LIST _IOWR(KVMIO, 0xb0, struct kvm_reg_list) 1341 /* Available with KVM_CAP_S390_MEM_OP */ 1342 #define KVM_S390_MEM_OP _IOW(KVMIO, 0xb1, struct kvm_s390_mem_op) 1343 /* Available with KVM_CAP_S390_SKEYS */ 1344 #define KVM_S390_GET_SKEYS _IOW(KVMIO, 0xb2, struct kvm_s390_skeys) 1345 #define KVM_S390_SET_SKEYS _IOW(KVMIO, 0xb3, struct kvm_s390_skeys) 1346 /* Available with KVM_CAP_S390_INJECT_IRQ */ 1347 #define KVM_S390_IRQ _IOW(KVMIO, 0xb4, struct kvm_s390_irq) 1348 /* Available with KVM_CAP_S390_IRQ_STATE */ 1349 #define KVM_S390_SET_IRQ_STATE _IOW(KVMIO, 0xb5, struct kvm_s390_irq_state) 1350 #define KVM_S390_GET_IRQ_STATE _IOW(KVMIO, 0xb6, struct kvm_s390_irq_state) 1351 /* Available with KVM_CAP_X86_SMM */ 1352 #define KVM_SMI _IO(KVMIO, 0xb7) 1353 /* Available with KVM_CAP_S390_CMMA_MIGRATION */ 1354 #define KVM_S390_GET_CMMA_BITS _IOWR(KVMIO, 0xb8, struct kvm_s390_cmma_log) 1355 #define KVM_S390_SET_CMMA_BITS _IOW(KVMIO, 0xb9, struct kvm_s390_cmma_log) 1356 /* Memory Encryption Commands */ 1357 #define KVM_MEMORY_ENCRYPT_OP _IOWR(KVMIO, 0xba, unsigned long) 1358 1359 struct kvm_enc_region { 1360 __u64 addr; 1361 __u64 size; 1362 }; 1363 1364 #define KVM_MEMORY_ENCRYPT_REG_REGION _IOR(KVMIO, 0xbb, struct kvm_enc_region) 1365 #define KVM_MEMORY_ENCRYPT_UNREG_REGION _IOR(KVMIO, 0xbc, struct kvm_enc_region) 1366 1367 /* Available with KVM_CAP_HYPERV_EVENTFD */ 1368 #define KVM_HYPERV_EVENTFD _IOW(KVMIO, 0xbd, struct kvm_hyperv_eventfd) 1369 1370 /* Available with KVM_CAP_NESTED_STATE */ 1371 #define KVM_GET_NESTED_STATE _IOWR(KVMIO, 0xbe, struct kvm_nested_state) 1372 #define KVM_SET_NESTED_STATE _IOW(KVMIO, 0xbf, struct kvm_nested_state) 1373 1374 /* Available with KVM_CAP_MANUAL_DIRTY_LOG_PROTECT_2 */ 1375 #define KVM_CLEAR_DIRTY_LOG _IOWR(KVMIO, 0xc0, struct kvm_clear_dirty_log) 1376 1377 /* Available with KVM_CAP_HYPERV_CPUID (vcpu) / KVM_CAP_SYS_HYPERV_CPUID (system) */ 1378 #define KVM_GET_SUPPORTED_HV_CPUID _IOWR(KVMIO, 0xc1, struct kvm_cpuid2) 1379 1380 /* Available with KVM_CAP_ARM_SVE */ 1381 #define KVM_ARM_VCPU_FINALIZE _IOW(KVMIO, 0xc2, int) 1382 1383 /* Available with KVM_CAP_S390_VCPU_RESETS */ 1384 #define KVM_S390_NORMAL_RESET _IO(KVMIO, 0xc3) 1385 #define KVM_S390_CLEAR_RESET _IO(KVMIO, 0xc4) 1386 1387 /* Available with KVM_CAP_S390_PROTECTED */ 1388 #define KVM_S390_PV_COMMAND _IOWR(KVMIO, 0xc5, struct kvm_pv_cmd) 1389 1390 /* Available with KVM_CAP_X86_MSR_FILTER */ 1391 #define KVM_X86_SET_MSR_FILTER _IOW(KVMIO, 0xc6, struct kvm_msr_filter) 1392 1393 /* Available with KVM_CAP_DIRTY_LOG_RING */ 1394 #define KVM_RESET_DIRTY_RINGS _IO(KVMIO, 0xc7) 1395 1396 /* Per-VM Xen attributes */ 1397 #define KVM_XEN_HVM_GET_ATTR _IOWR(KVMIO, 0xc8, struct kvm_xen_hvm_attr) 1398 #define KVM_XEN_HVM_SET_ATTR _IOW(KVMIO, 0xc9, struct kvm_xen_hvm_attr) 1399 1400 /* Per-vCPU Xen attributes */ 1401 #define KVM_XEN_VCPU_GET_ATTR _IOWR(KVMIO, 0xca, struct kvm_xen_vcpu_attr) 1402 #define KVM_XEN_VCPU_SET_ATTR _IOW(KVMIO, 0xcb, struct kvm_xen_vcpu_attr) 1403 1404 /* Available with KVM_CAP_XEN_HVM / KVM_XEN_HVM_CONFIG_EVTCHN_SEND */ 1405 #define KVM_XEN_HVM_EVTCHN_SEND _IOW(KVMIO, 0xd0, struct kvm_irq_routing_xen_evtchn) 1406 1407 #define KVM_GET_SREGS2 _IOR(KVMIO, 0xcc, struct kvm_sregs2) 1408 #define KVM_SET_SREGS2 _IOW(KVMIO, 0xcd, struct kvm_sregs2) 1409 1410 #define KVM_DIRTY_LOG_MANUAL_PROTECT_ENABLE (1 << 0) 1411 #define KVM_DIRTY_LOG_INITIALLY_SET (1 << 1) 1412 1413 /* 1414 * Arch needs to define the macro after implementing the dirty ring 1415 * feature. KVM_DIRTY_LOG_PAGE_OFFSET should be defined as the 1416 * starting page offset of the dirty ring structures. 1417 */ 1418 #ifndef KVM_DIRTY_LOG_PAGE_OFFSET 1419 #define KVM_DIRTY_LOG_PAGE_OFFSET 0 1420 #endif 1421 1422 /* 1423 * KVM dirty GFN flags, defined as: 1424 * 1425 * |---------------+---------------+--------------| 1426 * | bit 1 (reset) | bit 0 (dirty) | Status | 1427 * |---------------+---------------+--------------| 1428 * | 0 | 0 | Invalid GFN | 1429 * | 0 | 1 | Dirty GFN | 1430 * | 1 | X | GFN to reset | 1431 * |---------------+---------------+--------------| 1432 * 1433 * Lifecycle of a dirty GFN goes like: 1434 * 1435 * dirtied harvested reset 1436 * 00 -----------> 01 -------------> 1X -------+ 1437 * ^ | 1438 * | | 1439 * +------------------------------------------+ 1440 * 1441 * The userspace program is only responsible for the 01->1X state 1442 * conversion after harvesting an entry. Also, it must not skip any 1443 * dirty bits, so that dirty bits are always harvested in sequence. 1444 */ 1445 #define KVM_DIRTY_GFN_F_DIRTY _BITUL(0) 1446 #define KVM_DIRTY_GFN_F_RESET _BITUL(1) 1447 #define KVM_DIRTY_GFN_F_MASK 0x3 1448 1449 /* 1450 * KVM dirty rings should be mapped at KVM_DIRTY_LOG_PAGE_OFFSET of 1451 * per-vcpu mmaped regions as an array of struct kvm_dirty_gfn. The 1452 * size of the gfn buffer is decided by the first argument when 1453 * enabling KVM_CAP_DIRTY_LOG_RING. 1454 */ 1455 struct kvm_dirty_gfn { 1456 __u32 flags; 1457 __u32 slot; 1458 __u64 offset; 1459 }; 1460 1461 #define KVM_BUS_LOCK_DETECTION_OFF (1 << 0) 1462 #define KVM_BUS_LOCK_DETECTION_EXIT (1 << 1) 1463 1464 #define KVM_PMU_CAP_DISABLE (1 << 0) 1465 1466 /** 1467 * struct kvm_stats_header - Header of per vm/vcpu binary statistics data. 1468 * @flags: Some extra information for header, always 0 for now. 1469 * @name_size: The size in bytes of the memory which contains statistics 1470 * name string including trailing '\0'. The memory is allocated 1471 * at the send of statistics descriptor. 1472 * @num_desc: The number of statistics the vm or vcpu has. 1473 * @id_offset: The offset of the vm/vcpu stats' id string in the file pointed 1474 * by vm/vcpu stats fd. 1475 * @desc_offset: The offset of the vm/vcpu stats' descriptor block in the file 1476 * pointd by vm/vcpu stats fd. 1477 * @data_offset: The offset of the vm/vcpu stats' data block in the file 1478 * pointed by vm/vcpu stats fd. 1479 * 1480 * This is the header userspace needs to read from stats fd before any other 1481 * readings. It is used by userspace to discover all the information about the 1482 * vm/vcpu's binary statistics. 1483 * Userspace reads this header from the start of the vm/vcpu's stats fd. 1484 */ 1485 struct kvm_stats_header { 1486 __u32 flags; 1487 __u32 name_size; 1488 __u32 num_desc; 1489 __u32 id_offset; 1490 __u32 desc_offset; 1491 __u32 data_offset; 1492 }; 1493 1494 #define KVM_STATS_TYPE_SHIFT 0 1495 #define KVM_STATS_TYPE_MASK (0xF << KVM_STATS_TYPE_SHIFT) 1496 #define KVM_STATS_TYPE_CUMULATIVE (0x0 << KVM_STATS_TYPE_SHIFT) 1497 #define KVM_STATS_TYPE_INSTANT (0x1 << KVM_STATS_TYPE_SHIFT) 1498 #define KVM_STATS_TYPE_PEAK (0x2 << KVM_STATS_TYPE_SHIFT) 1499 #define KVM_STATS_TYPE_LINEAR_HIST (0x3 << KVM_STATS_TYPE_SHIFT) 1500 #define KVM_STATS_TYPE_LOG_HIST (0x4 << KVM_STATS_TYPE_SHIFT) 1501 #define KVM_STATS_TYPE_MAX KVM_STATS_TYPE_LOG_HIST 1502 1503 #define KVM_STATS_UNIT_SHIFT 4 1504 #define KVM_STATS_UNIT_MASK (0xF << KVM_STATS_UNIT_SHIFT) 1505 #define KVM_STATS_UNIT_NONE (0x0 << KVM_STATS_UNIT_SHIFT) 1506 #define KVM_STATS_UNIT_BYTES (0x1 << KVM_STATS_UNIT_SHIFT) 1507 #define KVM_STATS_UNIT_SECONDS (0x2 << KVM_STATS_UNIT_SHIFT) 1508 #define KVM_STATS_UNIT_CYCLES (0x3 << KVM_STATS_UNIT_SHIFT) 1509 #define KVM_STATS_UNIT_BOOLEAN (0x4 << KVM_STATS_UNIT_SHIFT) 1510 #define KVM_STATS_UNIT_MAX KVM_STATS_UNIT_BOOLEAN 1511 1512 #define KVM_STATS_BASE_SHIFT 8 1513 #define KVM_STATS_BASE_MASK (0xF << KVM_STATS_BASE_SHIFT) 1514 #define KVM_STATS_BASE_POW10 (0x0 << KVM_STATS_BASE_SHIFT) 1515 #define KVM_STATS_BASE_POW2 (0x1 << KVM_STATS_BASE_SHIFT) 1516 #define KVM_STATS_BASE_MAX KVM_STATS_BASE_POW2 1517 1518 /** 1519 * struct kvm_stats_desc - Descriptor of a KVM statistics. 1520 * @flags: Annotations of the stats, like type, unit, etc. 1521 * @exponent: Used together with @flags to determine the unit. 1522 * @size: The number of data items for this stats. 1523 * Every data item is of type __u64. 1524 * @offset: The offset of the stats to the start of stat structure in 1525 * structure kvm or kvm_vcpu. 1526 * @bucket_size: A parameter value used for histogram stats. It is only used 1527 * for linear histogram stats, specifying the size of the bucket; 1528 * @name: The name string for the stats. Its size is indicated by the 1529 * &kvm_stats_header->name_size. 1530 */ 1531 struct kvm_stats_desc { 1532 __u32 flags; 1533 __s16 exponent; 1534 __u16 size; 1535 __u32 offset; 1536 __u32 bucket_size; 1537 char name[]; 1538 }; 1539 1540 #define KVM_GET_STATS_FD _IO(KVMIO, 0xce) 1541 1542 /* Available with KVM_CAP_XSAVE2 */ 1543 #define KVM_GET_XSAVE2 _IOR(KVMIO, 0xcf, struct kvm_xsave) 1544 1545 /* Available with KVM_CAP_S390_PROTECTED_DUMP */ 1546 #define KVM_S390_PV_CPU_COMMAND _IOWR(KVMIO, 0xd0, struct kvm_pv_cmd) 1547 1548 /* Available with KVM_CAP_X86_NOTIFY_VMEXIT */ 1549 #define KVM_X86_NOTIFY_VMEXIT_ENABLED (1ULL << 0) 1550 #define KVM_X86_NOTIFY_VMEXIT_USER (1ULL << 1) 1551 1552 /* Available with KVM_CAP_S390_ZPCI_OP */ 1553 #define KVM_S390_ZPCI_OP _IOW(KVMIO, 0xd1, struct kvm_s390_zpci_op) 1554 1555 /* Available with KVM_CAP_MEMORY_ATTRIBUTES */ 1556 #define KVM_SET_MEMORY_ATTRIBUTES _IOW(KVMIO, 0xd2, struct kvm_memory_attributes) 1557 1558 struct kvm_memory_attributes { 1559 __u64 address; 1560 __u64 size; 1561 __u64 attributes; 1562 __u64 flags; 1563 }; 1564 1565 #define KVM_MEMORY_ATTRIBUTE_PRIVATE (1ULL << 3) 1566 1567 #define KVM_CREATE_GUEST_MEMFD _IOWR(KVMIO, 0xd4, struct kvm_create_guest_memfd) 1568 1569 struct kvm_create_guest_memfd { 1570 __u64 size; 1571 __u64 flags; 1572 __u64 reserved[6]; 1573 }; 1574 1575 #define KVM_PRE_FAULT_MEMORY _IOWR(KVMIO, 0xd5, struct kvm_pre_fault_memory) 1576 1577 struct kvm_pre_fault_memory { 1578 __u64 gpa; 1579 __u64 size; 1580 __u64 flags; 1581 __u64 padding[5]; 1582 }; 1583 1584 #endif /* __LINUX_KVM_H */ 1585