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

source code of linux/arch/x86/include/uapi/asm/kvm.h