1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 #ifndef _ASM_X86_KVM_H 3 #define _ASM_X86_KVM_H 4 5 /* 6 * KVM x86 specific structures and definitions 7 * 8 */ 9 10 #include <linux/const.h> 11 #include <linux/bits.h> 12 #include <linux/types.h> 13 #include <linux/ioctl.h> 14 #include <linux/stddef.h> 15 16 #define KVM_PIO_PAGE_OFFSET 1 17 #define KVM_COALESCED_MMIO_PAGE_OFFSET 2 18 #define KVM_DIRTY_LOG_PAGE_OFFSET 64 19 20 #define DE_VECTOR 0 21 #define DB_VECTOR 1 22 #define BP_VECTOR 3 23 #define OF_VECTOR 4 24 #define BR_VECTOR 5 25 #define UD_VECTOR 6 26 #define NM_VECTOR 7 27 #define DF_VECTOR 8 28 #define TS_VECTOR 10 29 #define NP_VECTOR 11 30 #define SS_VECTOR 12 31 #define GP_VECTOR 13 32 #define PF_VECTOR 14 33 #define MF_VECTOR 16 34 #define AC_VECTOR 17 35 #define MC_VECTOR 18 36 #define XM_VECTOR 19 37 #define VE_VECTOR 20 38 #define CP_VECTOR 21 39 40 #define HV_VECTOR 28 41 #define VC_VECTOR 29 42 #define SX_VECTOR 30 43 44 /* Select x86 specific features in <linux/kvm.h> */ 45 #define __KVM_HAVE_PIT 46 #define __KVM_HAVE_IOAPIC 47 #define __KVM_HAVE_IRQ_LINE 48 #define __KVM_HAVE_MSI 49 #define __KVM_HAVE_USER_NMI 50 #define __KVM_HAVE_MSIX 51 #define __KVM_HAVE_MCE 52 #define __KVM_HAVE_PIT_STATE2 53 #define __KVM_HAVE_XEN_HVM 54 #define __KVM_HAVE_VCPU_EVENTS 55 #define __KVM_HAVE_DEBUGREGS 56 #define __KVM_HAVE_XSAVE 57 #define __KVM_HAVE_XCRS 58 59 /* Architectural interrupt line count. */ 60 #define KVM_NR_INTERRUPTS 256 61 62 /* for KVM_GET_IRQCHIP and KVM_SET_IRQCHIP */ 63 struct kvm_pic_state { 64 __u8 last_irr; /* edge detection */ 65 __u8 irr; /* interrupt request register */ 66 __u8 imr; /* interrupt mask register */ 67 __u8 isr; /* interrupt service register */ 68 __u8 priority_add; /* highest irq priority */ 69 __u8 irq_base; 70 __u8 read_reg_select; 71 __u8 poll; 72 __u8 special_mask; 73 __u8 init_state; 74 __u8 auto_eoi; 75 __u8 rotate_on_auto_eoi; 76 __u8 special_fully_nested_mode; 77 __u8 init4; /* true if 4 byte init */ 78 __u8 elcr; /* PIIX edge/trigger selection */ 79 __u8 elcr_mask; 80 }; 81 82 #define KVM_IOAPIC_NUM_PINS 24 83 struct kvm_ioapic_state { 84 __u64 base_address; 85 __u32 ioregsel; 86 __u32 id; 87 __u32 irr; 88 __u32 pad; 89 union { 90 __u64 bits; 91 struct { 92 __u8 vector; 93 __u8 delivery_mode:3; 94 __u8 dest_mode:1; 95 __u8 delivery_status:1; 96 __u8 polarity:1; 97 __u8 remote_irr:1; 98 __u8 trig_mode:1; 99 __u8 mask:1; 100 __u8 reserve:7; 101 __u8 reserved[4]; 102 __u8 dest_id; 103 } fields; 104 } redirtbl[KVM_IOAPIC_NUM_PINS]; 105 }; 106 107 #define KVM_IRQCHIP_PIC_MASTER 0 108 #define KVM_IRQCHIP_PIC_SLAVE 1 109 #define KVM_IRQCHIP_IOAPIC 2 110 #define KVM_NR_IRQCHIPS 3 111 112 #define KVM_RUN_X86_SMM (1 << 0) 113 #define KVM_RUN_X86_BUS_LOCK (1 << 1) 114 #define KVM_RUN_X86_GUEST_MODE (1 << 2) 115 116 /* for KVM_GET_REGS and KVM_SET_REGS */ 117 struct kvm_regs { 118 /* out (KVM_GET_REGS) / in (KVM_SET_REGS) */ 119 __u64 rax, rbx, rcx, rdx; 120 __u64 rsi, rdi, rsp, rbp; 121 __u64 r8, r9, r10, r11; 122 __u64 r12, r13, r14, r15; 123 __u64 rip, rflags; 124 }; 125 126 /* for KVM_GET_LAPIC and KVM_SET_LAPIC */ 127 #define KVM_APIC_REG_SIZE 0x400 128 struct kvm_lapic_state { 129 char regs[KVM_APIC_REG_SIZE]; 130 }; 131 132 struct kvm_segment { 133 __u64 base; 134 __u32 limit; 135 __u16 selector; 136 __u8 type; 137 __u8 present, dpl, db, s, l, g, avl; 138 __u8 unusable; 139 __u8 padding; 140 }; 141 142 struct kvm_dtable { 143 __u64 base; 144 __u16 limit; 145 __u16 padding[3]; 146 }; 147 148 149 /* for KVM_GET_SREGS and KVM_SET_SREGS */ 150 struct kvm_sregs { 151 /* out (KVM_GET_SREGS) / in (KVM_SET_SREGS) */ 152 struct kvm_segment cs, ds, es, fs, gs, ss; 153 struct kvm_segment tr, ldt; 154 struct kvm_dtable gdt, idt; 155 __u64 cr0, cr2, cr3, cr4, cr8; 156 __u64 efer; 157 __u64 apic_base; 158 __u64 interrupt_bitmap[(KVM_NR_INTERRUPTS + 63) / 64]; 159 }; 160 161 struct kvm_sregs2 { 162 /* out (KVM_GET_SREGS2) / in (KVM_SET_SREGS2) */ 163 struct kvm_segment cs, ds, es, fs, gs, ss; 164 struct kvm_segment tr, ldt; 165 struct kvm_dtable gdt, idt; 166 __u64 cr0, cr2, cr3, cr4, cr8; 167 __u64 efer; 168 __u64 apic_base; 169 __u64 flags; 170 __u64 pdptrs[4]; 171 }; 172 #define KVM_SREGS2_FLAGS_PDPTRS_VALID 1 173 174 /* for KVM_GET_FPU and KVM_SET_FPU */ 175 struct kvm_fpu { 176 __u8 fpr[8][16]; 177 __u16 fcw; 178 __u16 fsw; 179 __u8 ftwx; /* in fxsave format */ 180 __u8 pad1; 181 __u16 last_opcode; 182 __u64 last_ip; 183 __u64 last_dp; 184 __u8 xmm[16][16]; 185 __u32 mxcsr; 186 __u32 pad2; 187 }; 188 189 struct kvm_msr_entry { 190 __u32 index; 191 __u32 reserved; 192 __u64 data; 193 }; 194 195 /* for KVM_GET_MSRS and KVM_SET_MSRS */ 196 struct kvm_msrs { 197 __u32 nmsrs; /* number of msrs in entries */ 198 __u32 pad; 199 200 struct kvm_msr_entry entries[]; 201 }; 202 203 /* for KVM_GET_MSR_INDEX_LIST */ 204 struct kvm_msr_list { 205 __u32 nmsrs; /* number of msrs in entries */ 206 __u32 indices[]; 207 }; 208 209 /* Maximum size of any access bitmap in bytes */ 210 #define KVM_MSR_FILTER_MAX_BITMAP_SIZE 0x600 211 212 /* for KVM_X86_SET_MSR_FILTER */ 213 struct kvm_msr_filter_range { 214 #define KVM_MSR_FILTER_READ (1 << 0) 215 #define KVM_MSR_FILTER_WRITE (1 << 1) 216 #define KVM_MSR_FILTER_RANGE_VALID_MASK (KVM_MSR_FILTER_READ | \ 217 KVM_MSR_FILTER_WRITE) 218 __u32 flags; 219 __u32 nmsrs; /* number of msrs in bitmap */ 220 __u32 base; /* MSR index the bitmap starts at */ 221 __u8 *bitmap; /* a 1 bit allows the operations in flags, 0 denies */ 222 }; 223 224 #define KVM_MSR_FILTER_MAX_RANGES 16 225 struct kvm_msr_filter { 226 #ifndef __KERNEL__ 227 #define KVM_MSR_FILTER_DEFAULT_ALLOW (0 << 0) 228 #endif 229 #define KVM_MSR_FILTER_DEFAULT_DENY (1 << 0) 230 #define KVM_MSR_FILTER_VALID_MASK (KVM_MSR_FILTER_DEFAULT_DENY) 231 __u32 flags; 232 struct kvm_msr_filter_range ranges[KVM_MSR_FILTER_MAX_RANGES]; 233 }; 234 235 struct kvm_cpuid_entry { 236 __u32 function; 237 __u32 eax; 238 __u32 ebx; 239 __u32 ecx; 240 __u32 edx; 241 __u32 padding; 242 }; 243 244 /* for KVM_SET_CPUID */ 245 struct kvm_cpuid { 246 __u32 nent; 247 __u32 padding; 248 struct kvm_cpuid_entry entries[]; 249 }; 250 251 struct kvm_cpuid_entry2 { 252 __u32 function; 253 __u32 index; 254 __u32 flags; 255 __u32 eax; 256 __u32 ebx; 257 __u32 ecx; 258 __u32 edx; 259 __u32 padding[3]; 260 }; 261 262 #define KVM_CPUID_FLAG_SIGNIFCANT_INDEX (1 << 0) 263 #define KVM_CPUID_FLAG_STATEFUL_FUNC (1 << 1) 264 #define KVM_CPUID_FLAG_STATE_READ_NEXT (1 << 2) 265 266 /* for KVM_SET_CPUID2 */ 267 struct kvm_cpuid2 { 268 __u32 nent; 269 __u32 padding; 270 struct kvm_cpuid_entry2 entries[]; 271 }; 272 273 /* for KVM_GET_PIT and KVM_SET_PIT */ 274 struct kvm_pit_channel_state { 275 __u32 count; /* can be 65536 */ 276 __u16 latched_count; 277 __u8 count_latched; 278 __u8 status_latched; 279 __u8 status; 280 __u8 read_state; 281 __u8 write_state; 282 __u8 write_latch; 283 __u8 rw_mode; 284 __u8 mode; 285 __u8 bcd; 286 __u8 gate; 287 __s64 count_load_time; 288 }; 289 290 struct kvm_debug_exit_arch { 291 __u32 exception; 292 __u32 pad; 293 __u64 pc; 294 __u64 dr6; 295 __u64 dr7; 296 }; 297 298 #define KVM_GUESTDBG_USE_SW_BP 0x00010000 299 #define KVM_GUESTDBG_USE_HW_BP 0x00020000 300 #define KVM_GUESTDBG_INJECT_DB 0x00040000 301 #define KVM_GUESTDBG_INJECT_BP 0x00080000 302 #define KVM_GUESTDBG_BLOCKIRQ 0x00100000 303 304 /* for KVM_SET_GUEST_DEBUG */ 305 struct kvm_guest_debug_arch { 306 __u64 debugreg[8]; 307 }; 308 309 struct kvm_pit_state { 310 struct kvm_pit_channel_state channels[3]; 311 }; 312 313 #define KVM_PIT_FLAGS_HPET_LEGACY 0x00000001 314 #define KVM_PIT_FLAGS_SPEAKER_DATA_ON 0x00000002 315 316 struct kvm_pit_state2 { 317 struct kvm_pit_channel_state channels[3]; 318 __u32 flags; 319 __u32 reserved[9]; 320 }; 321 322 struct kvm_reinject_control { 323 __u8 pit_reinject; 324 __u8 reserved[31]; 325 }; 326 327 /* When set in flags, include corresponding fields on KVM_SET_VCPU_EVENTS */ 328 #define KVM_VCPUEVENT_VALID_NMI_PENDING 0x00000001 329 #define KVM_VCPUEVENT_VALID_SIPI_VECTOR 0x00000002 330 #define KVM_VCPUEVENT_VALID_SHADOW 0x00000004 331 #define KVM_VCPUEVENT_VALID_SMM 0x00000008 332 #define KVM_VCPUEVENT_VALID_PAYLOAD 0x00000010 333 #define KVM_VCPUEVENT_VALID_TRIPLE_FAULT 0x00000020 334 335 /* Interrupt shadow states */ 336 #define KVM_X86_SHADOW_INT_MOV_SS 0x01 337 #define KVM_X86_SHADOW_INT_STI 0x02 338 339 /* for KVM_GET/SET_VCPU_EVENTS */ 340 struct kvm_vcpu_events { 341 struct { 342 __u8 injected; 343 __u8 nr; 344 __u8 has_error_code; 345 __u8 pending; 346 __u32 error_code; 347 } exception; 348 struct { 349 __u8 injected; 350 __u8 nr; 351 __u8 soft; 352 __u8 shadow; 353 } interrupt; 354 struct { 355 __u8 injected; 356 __u8 pending; 357 __u8 masked; 358 __u8 pad; 359 } nmi; 360 __u32 sipi_vector; 361 __u32 flags; 362 struct { 363 __u8 smm; 364 __u8 pending; 365 __u8 smm_inside_nmi; 366 __u8 latched_init; 367 } smi; 368 struct { 369 __u8 pending; 370 } triple_fault; 371 __u8 reserved[26]; 372 __u8 exception_has_payload; 373 __u64 exception_payload; 374 }; 375 376 /* for KVM_GET/SET_DEBUGREGS */ 377 struct kvm_debugregs { 378 __u64 db[4]; 379 __u64 dr6; 380 __u64 dr7; 381 __u64 flags; 382 __u64 reserved[9]; 383 }; 384 385 /* for KVM_CAP_XSAVE and KVM_CAP_XSAVE2 */ 386 struct kvm_xsave { 387 /* 388 * KVM_GET_XSAVE2 and KVM_SET_XSAVE write and read as many bytes 389 * as are returned by KVM_CHECK_EXTENSION(KVM_CAP_XSAVE2) 390 * respectively, when invoked on the vm file descriptor. 391 * 392 * The size value returned by KVM_CHECK_EXTENSION(KVM_CAP_XSAVE2) 393 * will always be at least 4096. Currently, it is only greater 394 * than 4096 if a dynamic feature has been enabled with 395 * ``arch_prctl()``, but this may change in the future. 396 * 397 * The offsets of the state save areas in struct kvm_xsave follow 398 * the contents of CPUID leaf 0xD on the host. 399 */ 400 __u32 region[1024]; 401 __u32 extra[]; 402 }; 403 404 #define KVM_MAX_XCRS 16 405 406 struct kvm_xcr { 407 __u32 xcr; 408 __u32 reserved; 409 __u64 value; 410 }; 411 412 struct kvm_xcrs { 413 __u32 nr_xcrs; 414 __u32 flags; 415 struct kvm_xcr xcrs[KVM_MAX_XCRS]; 416 __u64 padding[16]; 417 }; 418 419 #define KVM_X86_REG_TYPE_MSR 2 420 #define KVM_X86_REG_TYPE_KVM 3 421 422 #define KVM_X86_KVM_REG_SIZE(reg) \ 423 ({ \ 424 reg == KVM_REG_GUEST_SSP ? KVM_REG_SIZE_U64 : 0; \ 425 }) 426 427 #define KVM_X86_REG_TYPE_SIZE(type, reg) \ 428 ({ \ 429 __u64 type_size = (__u64)type << 32; \ 430 \ 431 type_size |= type == KVM_X86_REG_TYPE_MSR ? KVM_REG_SIZE_U64 : \ 432 type == KVM_X86_REG_TYPE_KVM ? KVM_X86_KVM_REG_SIZE(reg) : \ 433 0; \ 434 type_size; \ 435 }) 436 437 #define KVM_X86_REG_ID(type, index) \ 438 (KVM_REG_X86 | KVM_X86_REG_TYPE_SIZE(type, index) | index) 439 440 #define KVM_X86_REG_MSR(index) \ 441 KVM_X86_REG_ID(KVM_X86_REG_TYPE_MSR, index) 442 #define KVM_X86_REG_KVM(index) \ 443 KVM_X86_REG_ID(KVM_X86_REG_TYPE_KVM, index) 444 445 /* KVM-defined registers starting from 0 */ 446 #define KVM_REG_GUEST_SSP 0 447 448 #define KVM_SYNC_X86_REGS (1UL << 0) 449 #define KVM_SYNC_X86_SREGS (1UL << 1) 450 #define KVM_SYNC_X86_EVENTS (1UL << 2) 451 452 #define KVM_SYNC_X86_VALID_FIELDS \ 453 (KVM_SYNC_X86_REGS| \ 454 KVM_SYNC_X86_SREGS| \ 455 KVM_SYNC_X86_EVENTS) 456 457 /* kvm_sync_regs struct included by kvm_run struct */ 458 struct kvm_sync_regs { 459 /* Members of this structure are potentially malicious. 460 * Care must be taken by code reading, esp. interpreting, 461 * data fields from them inside KVM to prevent TOCTOU and 462 * double-fetch types of vulnerabilities. 463 */ 464 struct kvm_regs regs; 465 struct kvm_sregs sregs; 466 struct kvm_vcpu_events events; 467 }; 468 469 #define KVM_X86_QUIRK_LINT0_REENABLED (1 << 0) 470 #define KVM_X86_QUIRK_CD_NW_CLEARED (1 << 1) 471 #define KVM_X86_QUIRK_LAPIC_MMIO_HOLE (1 << 2) 472 #define KVM_X86_QUIRK_OUT_7E_INC_RIP (1 << 3) 473 #define KVM_X86_QUIRK_MISC_ENABLE_NO_MWAIT (1 << 4) 474 #define KVM_X86_QUIRK_FIX_HYPERCALL_INSN (1 << 5) 475 #define KVM_X86_QUIRK_MWAIT_NEVER_UD_FAULTS (1 << 6) 476 #define KVM_X86_QUIRK_SLOT_ZAP_ALL (1 << 7) 477 #define KVM_X86_QUIRK_STUFF_FEATURE_MSRS (1 << 8) 478 #define KVM_X86_QUIRK_IGNORE_GUEST_PAT (1 << 9) 479 480 #define KVM_STATE_NESTED_FORMAT_VMX 0 481 #define KVM_STATE_NESTED_FORMAT_SVM 1 482 483 #define KVM_STATE_NESTED_GUEST_MODE 0x00000001 484 #define KVM_STATE_NESTED_RUN_PENDING 0x00000002 485 #define KVM_STATE_NESTED_EVMCS 0x00000004 486 #define KVM_STATE_NESTED_MTF_PENDING 0x00000008 487 #define KVM_STATE_NESTED_GIF_SET 0x00000100 488 489 #define KVM_STATE_NESTED_SMM_GUEST_MODE 0x00000001 490 #define KVM_STATE_NESTED_SMM_VMXON 0x00000002 491 492 #define KVM_STATE_NESTED_VMX_VMCS_SIZE 0x1000 493 494 #define KVM_STATE_NESTED_SVM_VMCB_SIZE 0x1000 495 496 #define KVM_STATE_VMX_PREEMPTION_TIMER_DEADLINE 0x00000001 497 498 /* vendor-independent attributes for system fd (group 0) */ 499 #define KVM_X86_GRP_SYSTEM 0 500 # define KVM_X86_XCOMP_GUEST_SUPP 0 501 502 /* vendor-specific groups and attributes for system fd */ 503 #define KVM_X86_GRP_SEV 1 504 # define KVM_X86_SEV_VMSA_FEATURES 0 505 506 struct kvm_vmx_nested_state_data { 507 __u8 vmcs12[KVM_STATE_NESTED_VMX_VMCS_SIZE]; 508 __u8 shadow_vmcs12[KVM_STATE_NESTED_VMX_VMCS_SIZE]; 509 }; 510 511 struct kvm_vmx_nested_state_hdr { 512 __u64 vmxon_pa; 513 __u64 vmcs12_pa; 514 515 struct { 516 __u16 flags; 517 } smm; 518 519 __u16 pad; 520 521 __u32 flags; 522 __u64 preemption_timer_deadline; 523 }; 524 525 struct kvm_svm_nested_state_data { 526 /* Save area only used if KVM_STATE_NESTED_RUN_PENDING. */ 527 __u8 vmcb12[KVM_STATE_NESTED_SVM_VMCB_SIZE]; 528 }; 529 530 struct kvm_svm_nested_state_hdr { 531 __u64 vmcb_pa; 532 }; 533 534 /* for KVM_CAP_NESTED_STATE */ 535 struct kvm_nested_state { 536 __u16 flags; 537 __u16 format; 538 __u32 size; 539 540 union { 541 struct kvm_vmx_nested_state_hdr vmx; 542 struct kvm_svm_nested_state_hdr svm; 543 544 /* Pad the header to 128 bytes. */ 545 __u8 pad[120]; 546 } hdr; 547 548 /* 549 * Define data region as 0 bytes to preserve backwards-compatability 550 * to old definition of kvm_nested_state in order to avoid changing 551 * KVM_{GET,PUT}_NESTED_STATE ioctl values. 552 */ 553 union { 554 __DECLARE_FLEX_ARRAY(struct kvm_vmx_nested_state_data, vmx); 555 __DECLARE_FLEX_ARRAY(struct kvm_svm_nested_state_data, svm); 556 } data; 557 }; 558 559 /* for KVM_CAP_PMU_EVENT_FILTER */ 560 struct kvm_pmu_event_filter { 561 __u32 action; 562 __u32 nevents; 563 __u32 fixed_counter_bitmap; 564 __u32 flags; 565 __u32 pad[4]; 566 __u64 events[]; 567 }; 568 569 #define KVM_PMU_EVENT_ALLOW 0 570 #define KVM_PMU_EVENT_DENY 1 571 572 #define KVM_PMU_EVENT_FLAG_MASKED_EVENTS _BITUL(0) 573 #define KVM_PMU_EVENT_FLAGS_VALID_MASK (KVM_PMU_EVENT_FLAG_MASKED_EVENTS) 574 575 /* for KVM_CAP_MCE */ 576 struct kvm_x86_mce { 577 __u64 status; 578 __u64 addr; 579 __u64 misc; 580 __u64 mcg_status; 581 __u8 bank; 582 __u8 pad1[7]; 583 __u64 pad2[3]; 584 }; 585 586 /* for KVM_CAP_XEN_HVM */ 587 #define KVM_XEN_HVM_CONFIG_HYPERCALL_MSR (1 << 0) 588 #define KVM_XEN_HVM_CONFIG_INTERCEPT_HCALL (1 << 1) 589 #define KVM_XEN_HVM_CONFIG_SHARED_INFO (1 << 2) 590 #define KVM_XEN_HVM_CONFIG_RUNSTATE (1 << 3) 591 #define KVM_XEN_HVM_CONFIG_EVTCHN_2LEVEL (1 << 4) 592 #define KVM_XEN_HVM_CONFIG_EVTCHN_SEND (1 << 5) 593 #define KVM_XEN_HVM_CONFIG_RUNSTATE_UPDATE_FLAG (1 << 6) 594 #define KVM_XEN_HVM_CONFIG_PVCLOCK_TSC_UNSTABLE (1 << 7) 595 #define KVM_XEN_HVM_CONFIG_SHARED_INFO_HVA (1 << 8) 596 597 #define KVM_XEN_MSR_MIN_INDEX 0x40000000u 598 #define KVM_XEN_MSR_MAX_INDEX 0x4fffffffu 599 600 struct kvm_xen_hvm_config { 601 __u32 flags; 602 __u32 msr; 603 __u64 blob_addr_32; 604 __u64 blob_addr_64; 605 __u8 blob_size_32; 606 __u8 blob_size_64; 607 __u8 pad2[30]; 608 }; 609 610 struct kvm_xen_hvm_attr { 611 __u16 type; 612 __u16 pad[3]; 613 union { 614 __u8 long_mode; 615 __u8 vector; 616 __u8 runstate_update_flag; 617 union { 618 __u64 gfn; 619 #define KVM_XEN_INVALID_GFN ((__u64)-1) 620 __u64 hva; 621 } shared_info; 622 struct { 623 __u32 send_port; 624 __u32 type; /* EVTCHNSTAT_ipi / EVTCHNSTAT_interdomain */ 625 __u32 flags; 626 #define KVM_XEN_EVTCHN_DEASSIGN (1 << 0) 627 #define KVM_XEN_EVTCHN_UPDATE (1 << 1) 628 #define KVM_XEN_EVTCHN_RESET (1 << 2) 629 /* 630 * Events sent by the guest are either looped back to 631 * the guest itself (potentially on a different port#) 632 * or signalled via an eventfd. 633 */ 634 union { 635 struct { 636 __u32 port; 637 __u32 vcpu; 638 __u32 priority; 639 } port; 640 struct { 641 __u32 port; /* Zero for eventfd */ 642 __s32 fd; 643 } eventfd; 644 __u32 padding[4]; 645 } deliver; 646 } evtchn; 647 __u32 xen_version; 648 __u64 pad[8]; 649 } u; 650 }; 651 652 653 /* Available with KVM_CAP_XEN_HVM / KVM_XEN_HVM_CONFIG_SHARED_INFO */ 654 #define KVM_XEN_ATTR_TYPE_LONG_MODE 0x0 655 #define KVM_XEN_ATTR_TYPE_SHARED_INFO 0x1 656 #define KVM_XEN_ATTR_TYPE_UPCALL_VECTOR 0x2 657 /* Available with KVM_CAP_XEN_HVM / KVM_XEN_HVM_CONFIG_EVTCHN_SEND */ 658 #define KVM_XEN_ATTR_TYPE_EVTCHN 0x3 659 #define KVM_XEN_ATTR_TYPE_XEN_VERSION 0x4 660 /* Available with KVM_CAP_XEN_HVM / KVM_XEN_HVM_CONFIG_RUNSTATE_UPDATE_FLAG */ 661 #define KVM_XEN_ATTR_TYPE_RUNSTATE_UPDATE_FLAG 0x5 662 /* Available with KVM_CAP_XEN_HVM / KVM_XEN_HVM_CONFIG_SHARED_INFO_HVA */ 663 #define KVM_XEN_ATTR_TYPE_SHARED_INFO_HVA 0x6 664 665 struct kvm_xen_vcpu_attr { 666 __u16 type; 667 __u16 pad[3]; 668 union { 669 __u64 gpa; 670 #define KVM_XEN_INVALID_GPA ((__u64)-1) 671 __u64 hva; 672 __u64 pad[8]; 673 struct { 674 __u64 state; 675 __u64 state_entry_time; 676 __u64 time_running; 677 __u64 time_runnable; 678 __u64 time_blocked; 679 __u64 time_offline; 680 } runstate; 681 __u32 vcpu_id; 682 struct { 683 __u32 port; 684 __u32 priority; 685 __u64 expires_ns; 686 } timer; 687 __u8 vector; 688 } u; 689 }; 690 691 /* Available with KVM_CAP_XEN_HVM / KVM_XEN_HVM_CONFIG_SHARED_INFO */ 692 #define KVM_XEN_VCPU_ATTR_TYPE_VCPU_INFO 0x0 693 #define KVM_XEN_VCPU_ATTR_TYPE_VCPU_TIME_INFO 0x1 694 #define KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_ADDR 0x2 695 #define KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_CURRENT 0x3 696 #define KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_DATA 0x4 697 #define KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_ADJUST 0x5 698 /* Available with KVM_CAP_XEN_HVM / KVM_XEN_HVM_CONFIG_EVTCHN_SEND */ 699 #define KVM_XEN_VCPU_ATTR_TYPE_VCPU_ID 0x6 700 #define KVM_XEN_VCPU_ATTR_TYPE_TIMER 0x7 701 #define KVM_XEN_VCPU_ATTR_TYPE_UPCALL_VECTOR 0x8 702 /* Available with KVM_CAP_XEN_HVM / KVM_XEN_HVM_CONFIG_SHARED_INFO_HVA */ 703 #define KVM_XEN_VCPU_ATTR_TYPE_VCPU_INFO_HVA 0x9 704 705 /* Secure Encrypted Virtualization command */ 706 enum sev_cmd_id { 707 /* Guest initialization commands */ 708 KVM_SEV_INIT = 0, 709 KVM_SEV_ES_INIT, 710 /* Guest launch commands */ 711 KVM_SEV_LAUNCH_START, 712 KVM_SEV_LAUNCH_UPDATE_DATA, 713 KVM_SEV_LAUNCH_UPDATE_VMSA, 714 KVM_SEV_LAUNCH_SECRET, 715 KVM_SEV_LAUNCH_MEASURE, 716 KVM_SEV_LAUNCH_FINISH, 717 /* Guest migration commands (outgoing) */ 718 KVM_SEV_SEND_START, 719 KVM_SEV_SEND_UPDATE_DATA, 720 KVM_SEV_SEND_UPDATE_VMSA, 721 KVM_SEV_SEND_FINISH, 722 /* Guest migration commands (incoming) */ 723 KVM_SEV_RECEIVE_START, 724 KVM_SEV_RECEIVE_UPDATE_DATA, 725 KVM_SEV_RECEIVE_UPDATE_VMSA, 726 KVM_SEV_RECEIVE_FINISH, 727 /* Guest status and debug commands */ 728 KVM_SEV_GUEST_STATUS, 729 KVM_SEV_DBG_DECRYPT, 730 KVM_SEV_DBG_ENCRYPT, 731 /* Guest certificates commands */ 732 KVM_SEV_CERT_EXPORT, 733 /* Attestation report */ 734 KVM_SEV_GET_ATTESTATION_REPORT, 735 /* Guest Migration Extension */ 736 KVM_SEV_SEND_CANCEL, 737 738 /* Second time is the charm; improved versions of the above ioctls. */ 739 KVM_SEV_INIT2, 740 741 /* SNP-specific commands */ 742 KVM_SEV_SNP_LAUNCH_START = 100, 743 KVM_SEV_SNP_LAUNCH_UPDATE, 744 KVM_SEV_SNP_LAUNCH_FINISH, 745 746 KVM_SEV_NR_MAX, 747 }; 748 749 struct kvm_sev_cmd { 750 __u32 id; 751 __u32 pad0; 752 __u64 data; 753 __u32 error; 754 __u32 sev_fd; 755 }; 756 757 struct kvm_sev_init { 758 __u64 vmsa_features; 759 __u32 flags; 760 __u16 ghcb_version; 761 __u16 pad1; 762 __u32 pad2[8]; 763 }; 764 765 struct kvm_sev_launch_start { 766 __u32 handle; 767 __u32 policy; 768 __u64 dh_uaddr; 769 __u32 dh_len; 770 __u32 pad0; 771 __u64 session_uaddr; 772 __u32 session_len; 773 __u32 pad1; 774 }; 775 776 struct kvm_sev_launch_update_data { 777 __u64 uaddr; 778 __u32 len; 779 __u32 pad0; 780 }; 781 782 783 struct kvm_sev_launch_secret { 784 __u64 hdr_uaddr; 785 __u32 hdr_len; 786 __u32 pad0; 787 __u64 guest_uaddr; 788 __u32 guest_len; 789 __u32 pad1; 790 __u64 trans_uaddr; 791 __u32 trans_len; 792 __u32 pad2; 793 }; 794 795 struct kvm_sev_launch_measure { 796 __u64 uaddr; 797 __u32 len; 798 __u32 pad0; 799 }; 800 801 struct kvm_sev_guest_status { 802 __u32 handle; 803 __u32 policy; 804 __u32 state; 805 }; 806 807 struct kvm_sev_dbg { 808 __u64 src_uaddr; 809 __u64 dst_uaddr; 810 __u32 len; 811 __u32 pad0; 812 }; 813 814 struct kvm_sev_attestation_report { 815 __u8 mnonce[16]; 816 __u64 uaddr; 817 __u32 len; 818 __u32 pad0; 819 }; 820 821 struct kvm_sev_send_start { 822 __u32 policy; 823 __u32 pad0; 824 __u64 pdh_cert_uaddr; 825 __u32 pdh_cert_len; 826 __u32 pad1; 827 __u64 plat_certs_uaddr; 828 __u32 plat_certs_len; 829 __u32 pad2; 830 __u64 amd_certs_uaddr; 831 __u32 amd_certs_len; 832 __u32 pad3; 833 __u64 session_uaddr; 834 __u32 session_len; 835 __u32 pad4; 836 }; 837 838 struct kvm_sev_send_update_data { 839 __u64 hdr_uaddr; 840 __u32 hdr_len; 841 __u32 pad0; 842 __u64 guest_uaddr; 843 __u32 guest_len; 844 __u32 pad1; 845 __u64 trans_uaddr; 846 __u32 trans_len; 847 __u32 pad2; 848 }; 849 850 struct kvm_sev_receive_start { 851 __u32 handle; 852 __u32 policy; 853 __u64 pdh_uaddr; 854 __u32 pdh_len; 855 __u32 pad0; 856 __u64 session_uaddr; 857 __u32 session_len; 858 __u32 pad1; 859 }; 860 861 struct kvm_sev_receive_update_data { 862 __u64 hdr_uaddr; 863 __u32 hdr_len; 864 __u32 pad0; 865 __u64 guest_uaddr; 866 __u32 guest_len; 867 __u32 pad1; 868 __u64 trans_uaddr; 869 __u32 trans_len; 870 __u32 pad2; 871 }; 872 873 struct kvm_sev_snp_launch_start { 874 __u64 policy; 875 __u8 gosvw[16]; 876 __u16 flags; 877 __u8 pad0[6]; 878 __u64 pad1[4]; 879 }; 880 881 /* Kept in sync with firmware values for simplicity. */ 882 #define KVM_SEV_PAGE_TYPE_INVALID 0x0 883 #define KVM_SEV_SNP_PAGE_TYPE_NORMAL 0x1 884 #define KVM_SEV_SNP_PAGE_TYPE_ZERO 0x3 885 #define KVM_SEV_SNP_PAGE_TYPE_UNMEASURED 0x4 886 #define KVM_SEV_SNP_PAGE_TYPE_SECRETS 0x5 887 #define KVM_SEV_SNP_PAGE_TYPE_CPUID 0x6 888 889 struct kvm_sev_snp_launch_update { 890 __u64 gfn_start; 891 __u64 uaddr; 892 __u64 len; 893 __u8 type; 894 __u8 pad0; 895 __u16 flags; 896 __u32 pad1; 897 __u64 pad2[4]; 898 }; 899 900 #define KVM_SEV_SNP_ID_BLOCK_SIZE 96 901 #define KVM_SEV_SNP_ID_AUTH_SIZE 4096 902 #define KVM_SEV_SNP_FINISH_DATA_SIZE 32 903 904 struct kvm_sev_snp_launch_finish { 905 __u64 id_block_uaddr; 906 __u64 id_auth_uaddr; 907 __u8 id_block_en; 908 __u8 auth_key_en; 909 __u8 vcek_disabled; 910 __u8 host_data[KVM_SEV_SNP_FINISH_DATA_SIZE]; 911 __u8 pad0[3]; 912 __u16 flags; 913 __u64 pad1[4]; 914 }; 915 916 #define KVM_X2APIC_API_USE_32BIT_IDS (1ULL << 0) 917 #define KVM_X2APIC_API_DISABLE_BROADCAST_QUIRK (1ULL << 1) 918 919 struct kvm_hyperv_eventfd { 920 __u32 conn_id; 921 __s32 fd; 922 __u32 flags; 923 __u32 padding[3]; 924 }; 925 926 #define KVM_HYPERV_CONN_ID_MASK 0x00ffffff 927 #define KVM_HYPERV_EVENTFD_DEASSIGN (1 << 0) 928 929 /* 930 * Masked event layout. 931 * Bits Description 932 * ---- ----------- 933 * 7:0 event select (low bits) 934 * 15:8 umask match 935 * 31:16 unused 936 * 35:32 event select (high bits) 937 * 36:54 unused 938 * 55 exclude bit 939 * 63:56 umask mask 940 */ 941 942 #define KVM_PMU_ENCODE_MASKED_ENTRY(event_select, mask, match, exclude) \ 943 (((event_select) & 0xFFULL) | (((event_select) & 0XF00ULL) << 24) | \ 944 (((mask) & 0xFFULL) << 56) | \ 945 (((match) & 0xFFULL) << 8) | \ 946 ((__u64)(!!(exclude)) << 55)) 947 948 #define KVM_PMU_MASKED_ENTRY_EVENT_SELECT \ 949 (__GENMASK_ULL(7, 0) | __GENMASK_ULL(35, 32)) 950 #define KVM_PMU_MASKED_ENTRY_UMASK_MASK (__GENMASK_ULL(63, 56)) 951 #define KVM_PMU_MASKED_ENTRY_UMASK_MATCH (__GENMASK_ULL(15, 8)) 952 #define KVM_PMU_MASKED_ENTRY_EXCLUDE (_BITULL(55)) 953 #define KVM_PMU_MASKED_ENTRY_UMASK_MASK_SHIFT (56) 954 955 /* for KVM_{GET,SET,HAS}_DEVICE_ATTR */ 956 #define KVM_VCPU_TSC_CTRL 0 /* control group for the timestamp counter (TSC) */ 957 #define KVM_VCPU_TSC_OFFSET 0 /* attribute for the TSC offset */ 958 959 /* x86-specific KVM_EXIT_HYPERCALL flags. */ 960 #define KVM_EXIT_HYPERCALL_LONG_MODE _BITULL(0) 961 962 #define KVM_X86_DEFAULT_VM 0 963 #define KVM_X86_SW_PROTECTED_VM 1 964 #define KVM_X86_SEV_VM 2 965 #define KVM_X86_SEV_ES_VM 3 966 #define KVM_X86_SNP_VM 4 967 #define KVM_X86_TDX_VM 5 968 969 /* Trust Domain eXtension sub-ioctl() commands. */ 970 enum kvm_tdx_cmd_id { 971 KVM_TDX_CAPABILITIES = 0, 972 KVM_TDX_INIT_VM, 973 KVM_TDX_INIT_VCPU, 974 KVM_TDX_INIT_MEM_REGION, 975 KVM_TDX_FINALIZE_VM, 976 KVM_TDX_GET_CPUID, 977 978 KVM_TDX_CMD_NR_MAX, 979 }; 980 981 struct kvm_tdx_cmd { 982 /* enum kvm_tdx_cmd_id */ 983 __u32 id; 984 /* flags for sub-commend. If sub-command doesn't use this, set zero. */ 985 __u32 flags; 986 /* 987 * data for each sub-command. An immediate or a pointer to the actual 988 * data in process virtual address. If sub-command doesn't use it, 989 * set zero. 990 */ 991 __u64 data; 992 /* 993 * Auxiliary error code. The sub-command may return TDX SEAMCALL 994 * status code in addition to -Exxx. 995 */ 996 __u64 hw_error; 997 }; 998 999 struct kvm_tdx_capabilities { 1000 __u64 supported_attrs; 1001 __u64 supported_xfam; 1002 1003 __u64 kernel_tdvmcallinfo_1_r11; 1004 __u64 user_tdvmcallinfo_1_r11; 1005 __u64 kernel_tdvmcallinfo_1_r12; 1006 __u64 user_tdvmcallinfo_1_r12; 1007 1008 __u64 reserved[250]; 1009 1010 /* Configurable CPUID bits for userspace */ 1011 struct kvm_cpuid2 cpuid; 1012 }; 1013 1014 struct kvm_tdx_init_vm { 1015 __u64 attributes; 1016 __u64 xfam; 1017 __u64 mrconfigid[6]; /* sha384 digest */ 1018 __u64 mrowner[6]; /* sha384 digest */ 1019 __u64 mrownerconfig[6]; /* sha384 digest */ 1020 1021 /* The total space for TD_PARAMS before the CPUIDs is 256 bytes */ 1022 __u64 reserved[12]; 1023 1024 /* 1025 * Call KVM_TDX_INIT_VM before vcpu creation, thus before 1026 * KVM_SET_CPUID2. 1027 * This configuration supersedes KVM_SET_CPUID2s for VCPUs because the 1028 * TDX module directly virtualizes those CPUIDs without VMM. The user 1029 * space VMM, e.g. qemu, should make KVM_SET_CPUID2 consistent with 1030 * those values. If it doesn't, KVM may have wrong idea of vCPUIDs of 1031 * the guest, and KVM may wrongly emulate CPUIDs or MSRs that the TDX 1032 * module doesn't virtualize. 1033 */ 1034 struct kvm_cpuid2 cpuid; 1035 }; 1036 1037 #define KVM_TDX_MEASURE_MEMORY_REGION _BITULL(0) 1038 1039 struct kvm_tdx_init_mem_region { 1040 __u64 source_addr; 1041 __u64 gpa; 1042 __u64 nr_pages; 1043 }; 1044 1045 #endif /* _ASM_X86_KVM_H */ 1046