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