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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
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#define KVM_EXIT_TDX 40
182
183/* For KVM_EXIT_INTERNAL_ERROR */
184/* Emulate instruction failed. */
185#define KVM_INTERNAL_ERROR_EMULATION 1
186/* Encounter unexpected simultaneous exceptions. */
187#define KVM_INTERNAL_ERROR_SIMUL_EX 2
188/* Encounter unexpected vm-exit due to delivery event. */
189#define KVM_INTERNAL_ERROR_DELIVERY_EV 3
190/* Encounter unexpected vm-exit reason */
191#define KVM_INTERNAL_ERROR_UNEXPECTED_EXIT_REASON 4
192
193/* Flags that describe what fields in emulation_failure hold valid data. */
194#define KVM_INTERNAL_ERROR_EMULATION_FLAG_INSTRUCTION_BYTES (1ULL << 0)
195
196/*
197 * struct kvm_run can be modified by userspace at any time, so KVM must be
198 * careful to avoid TOCTOU bugs. In order to protect KVM, HINT_UNSAFE_IN_KVM()
199 * renames fields in struct kvm_run from <symbol> to <symbol>__unsafe when
200 * compiled into the kernel, ensuring that any use within KVM is obvious and
201 * gets extra scrutiny.
202 */
203#define HINT_UNSAFE_IN_KVM(_symbol) _symbol
204
205/* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */
206struct kvm_run {
207 /* in */
208 __u8 request_interrupt_window;
209 __u8 HINT_UNSAFE_IN_KVM(immediate_exit);
210 __u8 padding1[6];
211
212 /* out */
213 __u32 exit_reason;
214 __u8 ready_for_interrupt_injection;
215 __u8 if_flag;
216 __u16 flags;
217
218 /* in (pre_kvm_run), out (post_kvm_run) */
219 __u64 cr8;
220 __u64 apic_base;
221
222#ifdef __KVM_S390
223 /* the processor status word for s390 */
224 __u64 psw_mask; /* psw upper half */
225 __u64 psw_addr; /* psw lower half */
226#endif
227 union {
228 /* KVM_EXIT_UNKNOWN */
229 struct {
230 __u64 hardware_exit_reason;
231 } hw;
232 /* KVM_EXIT_FAIL_ENTRY */
233 struct {
234 __u64 hardware_entry_failure_reason;
235 __u32 cpu;
236 } fail_entry;
237 /* KVM_EXIT_EXCEPTION */
238 struct {
239 __u32 exception;
240 __u32 error_code;
241 } ex;
242 /* KVM_EXIT_IO */
243 struct {
244#define KVM_EXIT_IO_IN 0
245#define KVM_EXIT_IO_OUT 1
246 __u8 direction;
247 __u8 size; /* bytes */
248 __u16 port;
249 __u32 count;
250 __u64 data_offset; /* relative to kvm_run start */
251 } io;
252 /* KVM_EXIT_DEBUG */
253 struct {
254 struct kvm_debug_exit_arch arch;
255 } debug;
256 /* KVM_EXIT_MMIO */
257 struct {
258 __u64 phys_addr;
259 __u8 data[8];
260 __u32 len;
261 __u8 is_write;
262 } mmio;
263 /* KVM_EXIT_LOONGARCH_IOCSR */
264 struct {
265 __u64 phys_addr;
266 __u8 data[8];
267 __u32 len;
268 __u8 is_write;
269 } iocsr_io;
270 /* KVM_EXIT_HYPERCALL */
271 struct {
272 __u64 nr;
273 __u64 args[6];
274 __u64 ret;
275
276 union {
277 __u32 longmode;
278 __u64 flags;
279 };
280 } hypercall;
281 /* KVM_EXIT_TPR_ACCESS */
282 struct {
283 __u64 rip;
284 __u32 is_write;
285 __u32 pad;
286 } tpr_access;
287 /* KVM_EXIT_S390_SIEIC */
288 struct {
289 __u8 icptcode;
290 __u16 ipa;
291 __u32 ipb;
292 } s390_sieic;
293 /* KVM_EXIT_S390_RESET */
294 __u64 s390_reset_flags;
295 /* KVM_EXIT_S390_UCONTROL */
296 struct {
297 __u64 trans_exc_code;
298 __u32 pgm_code;
299 } s390_ucontrol;
300 /* KVM_EXIT_DCR (deprecated) */
301 struct {
302 __u32 dcrn;
303 __u32 data;
304 __u8 is_write;
305 } dcr;
306 /* KVM_EXIT_INTERNAL_ERROR */
307 struct {
308 __u32 suberror;
309 /* Available with KVM_CAP_INTERNAL_ERROR_DATA: */
310 __u32 ndata;
311 __u64 data[16];
312 } internal;
313 /*
314 * KVM_INTERNAL_ERROR_EMULATION
315 *
316 * "struct emulation_failure" is an overlay of "struct internal"
317 * that is used for the KVM_INTERNAL_ERROR_EMULATION sub-type of
318 * KVM_EXIT_INTERNAL_ERROR. Note, unlike other internal error
319 * sub-types, this struct is ABI! It also needs to be backwards
320 * compatible with "struct internal". Take special care that
321 * "ndata" is correct, that new fields are enumerated in "flags",
322 * and that each flag enumerates fields that are 64-bit aligned
323 * and sized (so that ndata+internal.data[] is valid/accurate).
324 *
325 * Space beyond the defined fields may be used to store arbitrary
326 * debug information relating to the emulation failure. It is
327 * accounted for in "ndata" but the format is unspecified and is
328 * not represented in "flags". Any such information is *not* ABI!
329 */
330 struct {
331 __u32 suberror;
332 __u32 ndata;
333 __u64 flags;
334 union {
335 struct {
336 __u8 insn_size;
337 __u8 insn_bytes[15];
338 };
339 };
340 /* Arbitrary debug data may follow. */
341 } emulation_failure;
342 /* KVM_EXIT_OSI */
343 struct {
344 __u64 gprs[32];
345 } osi;
346 /* KVM_EXIT_PAPR_HCALL */
347 struct {
348 __u64 nr;
349 __u64 ret;
350 __u64 args[9];
351 } papr_hcall;
352 /* KVM_EXIT_S390_TSCH */
353 struct {
354 __u16 subchannel_id;
355 __u16 subchannel_nr;
356 __u32 io_int_parm;
357 __u32 io_int_word;
358 __u32 ipb;
359 __u8 dequeued;
360 } s390_tsch;
361 /* KVM_EXIT_EPR */
362 struct {
363 __u32 epr;
364 } epr;
365 /* KVM_EXIT_SYSTEM_EVENT */
366 struct {
367#define KVM_SYSTEM_EVENT_SHUTDOWN 1
368#define KVM_SYSTEM_EVENT_RESET 2
369#define KVM_SYSTEM_EVENT_CRASH 3
370#define KVM_SYSTEM_EVENT_WAKEUP 4
371#define KVM_SYSTEM_EVENT_SUSPEND 5
372#define KVM_SYSTEM_EVENT_SEV_TERM 6
373#define KVM_SYSTEM_EVENT_TDX_FATAL 7
374 __u32 type;
375 __u32 ndata;
376 union {
377 __u64 flags;
378 __u64 data[16];
379 };
380 } system_event;
381 /* KVM_EXIT_S390_STSI */
382 struct {
383 __u64 addr;
384 __u8 ar;
385 __u8 reserved;
386 __u8 fc;
387 __u8 sel1;
388 __u16 sel2;
389 } s390_stsi;
390 /* KVM_EXIT_IOAPIC_EOI */
391 struct {
392 __u8 vector;
393 } eoi;
394 /* KVM_EXIT_HYPERV */
395 struct kvm_hyperv_exit hyperv;
396 /* KVM_EXIT_ARM_NISV */
397 struct {
398 __u64 esr_iss;
399 __u64 fault_ipa;
400 } arm_nisv;
401 /* KVM_EXIT_X86_RDMSR / KVM_EXIT_X86_WRMSR */
402 struct {
403 __u8 error; /* user -> kernel */
404 __u8 pad[7];
405#define KVM_MSR_EXIT_REASON_INVAL (1 << 0)
406#define KVM_MSR_EXIT_REASON_UNKNOWN (1 << 1)
407#define KVM_MSR_EXIT_REASON_FILTER (1 << 2)
408#define KVM_MSR_EXIT_REASON_VALID_MASK (KVM_MSR_EXIT_REASON_INVAL | \
409 KVM_MSR_EXIT_REASON_UNKNOWN | \
410 KVM_MSR_EXIT_REASON_FILTER)
411 __u32 reason; /* kernel -> user */
412 __u32 index; /* kernel -> user */
413 __u64 data; /* kernel <-> user */
414 } msr;
415 /* KVM_EXIT_XEN */
416 struct kvm_xen_exit xen;
417 /* KVM_EXIT_RISCV_SBI */
418 struct {
419 unsigned long extension_id;
420 unsigned long function_id;
421 unsigned long args[6];
422 unsigned long ret[2];
423 } riscv_sbi;
424 /* KVM_EXIT_RISCV_CSR */
425 struct {
426 unsigned long csr_num;
427 unsigned long new_value;
428 unsigned long write_mask;
429 unsigned long ret_value;
430 } riscv_csr;
431 /* KVM_EXIT_NOTIFY */
432 struct {
433#define KVM_NOTIFY_CONTEXT_INVALID (1 << 0)
434 __u32 flags;
435 } notify;
436 /* KVM_EXIT_MEMORY_FAULT */
437 struct {
438#define KVM_MEMORY_EXIT_FLAG_PRIVATE (1ULL << 3)
439 __u64 flags;
440 __u64 gpa;
441 __u64 size;
442 } memory_fault;
443 /* KVM_EXIT_TDX */
444 struct {
445 __u64 flags;
446 __u64 nr;
447 union {
448 struct {
449 __u64 ret;
450 __u64 data[5];
451 } unknown;
452 struct {
453 __u64 ret;
454 __u64 gpa;
455 __u64 size;
456 } get_quote;
457 struct {
458 __u64 ret;
459 __u64 leaf;
460 __u64 r11, r12, r13, r14;
461 } get_tdvmcall_info;
462 struct {
463 __u64 ret;
464 __u64 vector;
465 } setup_event_notify;
466 };
467 } tdx;
468 /* Fix the size of the union. */
469 char padding[256];
470 };
471
472 /* 2048 is the size of the char array used to bound/pad the size
473 * of the union that holds sync regs.
474 */
475 #define SYNC_REGS_SIZE_BYTES 2048
476 /*
477 * shared registers between kvm and userspace.
478 * kvm_valid_regs specifies the register classes set by the host
479 * kvm_dirty_regs specified the register classes dirtied by userspace
480 * struct kvm_sync_regs is architecture specific, as well as the
481 * bits for kvm_valid_regs and kvm_dirty_regs
482 */
483 __u64 kvm_valid_regs;
484 __u64 kvm_dirty_regs;
485 union {
486 struct kvm_sync_regs regs;
487 char padding[SYNC_REGS_SIZE_BYTES];
488 } s;
489};
490
491/* for KVM_REGISTER_COALESCED_MMIO / KVM_UNREGISTER_COALESCED_MMIO */
492
493struct kvm_coalesced_mmio_zone {
494 __u64 addr;
495 __u32 size;
496 union {
497 __u32 pad;
498 __u32 pio;
499 };
500};
501
502struct kvm_coalesced_mmio {
503 __u64 phys_addr;
504 __u32 len;
505 union {
506 __u32 pad;
507 __u32 pio;
508 };
509 __u8 data[8];
510};
511
512struct kvm_coalesced_mmio_ring {
513 __u32 first, last;
514 struct kvm_coalesced_mmio coalesced_mmio[];
515};
516
517#define KVM_COALESCED_MMIO_MAX \
518 ((PAGE_SIZE - sizeof(struct kvm_coalesced_mmio_ring)) / \
519 sizeof(struct kvm_coalesced_mmio))
520
521/* for KVM_TRANSLATE */
522struct kvm_translation {
523 /* in */
524 __u64 linear_address;
525
526 /* out */
527 __u64 physical_address;
528 __u8 valid;
529 __u8 writeable;
530 __u8 usermode;
531 __u8 pad[5];
532};
533
534/* for KVM_INTERRUPT */
535struct kvm_interrupt {
536 /* in */
537 __u32 irq;
538};
539
540/* for KVM_GET_DIRTY_LOG */
541struct kvm_dirty_log {
542 __u32 slot;
543 __u32 padding1;
544 union {
545 void *dirty_bitmap; /* one bit per page */
546 __u64 padding2;
547 };
548};
549
550/* for KVM_CLEAR_DIRTY_LOG */
551struct kvm_clear_dirty_log {
552 __u32 slot;
553 __u32 num_pages;
554 __u64 first_page;
555 union {
556 void *dirty_bitmap; /* one bit per page */
557 __u64 padding2;
558 };
559};
560
561/* for KVM_SET_SIGNAL_MASK */
562struct kvm_signal_mask {
563 __u32 len;
564 __u8 sigset[];
565};
566
567/* for KVM_TPR_ACCESS_REPORTING */
568struct kvm_tpr_access_ctl {
569 __u32 enabled;
570 __u32 flags;
571 __u32 reserved[8];
572};
573
574/* for KVM_SET_VAPIC_ADDR */
575struct kvm_vapic_addr {
576 __u64 vapic_addr;
577};
578
579/* for KVM_SET_MP_STATE */
580
581/* not all states are valid on all architectures */
582#define KVM_MP_STATE_RUNNABLE 0
583#define KVM_MP_STATE_UNINITIALIZED 1
584#define KVM_MP_STATE_INIT_RECEIVED 2
585#define KVM_MP_STATE_HALTED 3
586#define KVM_MP_STATE_SIPI_RECEIVED 4
587#define KVM_MP_STATE_STOPPED 5
588#define KVM_MP_STATE_CHECK_STOP 6
589#define KVM_MP_STATE_OPERATING 7
590#define KVM_MP_STATE_LOAD 8
591#define KVM_MP_STATE_AP_RESET_HOLD 9
592#define KVM_MP_STATE_SUSPENDED 10
593
594struct kvm_mp_state {
595 __u32 mp_state;
596};
597
598/* for KVM_SET_GUEST_DEBUG */
599
600#define KVM_GUESTDBG_ENABLE 0x00000001
601#define KVM_GUESTDBG_SINGLESTEP 0x00000002
602
603struct kvm_guest_debug {
604 __u32 control;
605 __u32 pad;
606 struct kvm_guest_debug_arch arch;
607};
608
609enum {
610 kvm_ioeventfd_flag_nr_datamatch,
611 kvm_ioeventfd_flag_nr_pio,
612 kvm_ioeventfd_flag_nr_deassign,
613 kvm_ioeventfd_flag_nr_virtio_ccw_notify,
614 kvm_ioeventfd_flag_nr_fast_mmio,
615 kvm_ioeventfd_flag_nr_max,
616};
617
618#define KVM_IOEVENTFD_FLAG_DATAMATCH (1 << kvm_ioeventfd_flag_nr_datamatch)
619#define KVM_IOEVENTFD_FLAG_PIO (1 << kvm_ioeventfd_flag_nr_pio)
620#define KVM_IOEVENTFD_FLAG_DEASSIGN (1 << kvm_ioeventfd_flag_nr_deassign)
621#define KVM_IOEVENTFD_FLAG_VIRTIO_CCW_NOTIFY \
622 (1 << kvm_ioeventfd_flag_nr_virtio_ccw_notify)
623
624#define KVM_IOEVENTFD_VALID_FLAG_MASK ((1 << kvm_ioeventfd_flag_nr_max) - 1)
625
626struct kvm_ioeventfd {
627 __u64 datamatch;
628 __u64 addr; /* legal pio/mmio address */
629 __u32 len; /* 1, 2, 4, or 8 bytes; or 0 to ignore length */
630 __s32 fd;
631 __u32 flags;
632 __u8 pad[36];
633};
634
635#define KVM_X86_DISABLE_EXITS_MWAIT (1 << 0)
636#define KVM_X86_DISABLE_EXITS_HLT (1 << 1)
637#define KVM_X86_DISABLE_EXITS_PAUSE (1 << 2)
638#define KVM_X86_DISABLE_EXITS_CSTATE (1 << 3)
639#define KVM_X86_DISABLE_EXITS_APERFMPERF (1 << 4)
640
641/* for KVM_ENABLE_CAP */
642struct kvm_enable_cap {
643 /* in */
644 __u32 cap;
645 __u32 flags;
646 __u64 args[4];
647 __u8 pad[64];
648};
649
650#define KVMIO 0xAE
651
652/* machine type bits, to be used as argument to KVM_CREATE_VM */
653#define KVM_VM_S390_UCONTROL 1
654
655/* on ppc, 0 indicate default, 1 should force HV and 2 PR */
656#define KVM_VM_PPC_HV 1
657#define KVM_VM_PPC_PR 2
658
659/* on MIPS, 0 indicates auto, 1 forces VZ ASE, 2 forces trap & emulate */
660#define KVM_VM_MIPS_AUTO 0
661#define KVM_VM_MIPS_VZ 1
662#define KVM_VM_MIPS_TE 2
663
664#define KVM_S390_SIE_PAGE_OFFSET 1
665
666/*
667 * On arm64, machine type can be used to request the physical
668 * address size for the VM. Bits[7-0] are reserved for the guest
669 * PA size shift (i.e, log2(PA_Size)). For backward compatibility,
670 * value 0 implies the default IPA size, 40bits.
671 */
672#define KVM_VM_TYPE_ARM_IPA_SIZE_MASK 0xffULL
673#define KVM_VM_TYPE_ARM_IPA_SIZE(x) \
674 ((x) & KVM_VM_TYPE_ARM_IPA_SIZE_MASK)
675/*
676 * ioctls for /dev/kvm fds:
677 */
678#define KVM_GET_API_VERSION _IO(KVMIO, 0x00)
679#define KVM_CREATE_VM _IO(KVMIO, 0x01) /* returns a VM fd */
680#define KVM_GET_MSR_INDEX_LIST _IOWR(KVMIO, 0x02, struct kvm_msr_list)
681
682#define KVM_S390_ENABLE_SIE _IO(KVMIO, 0x06)
683/*
684 * Check if a kvm extension is available. Argument is extension number,
685 * return is 1 (yes) or 0 (no, sorry).
686 */
687#define KVM_CHECK_EXTENSION _IO(KVMIO, 0x03)
688/*
689 * Get size for mmap(vcpu_fd)
690 */
691#define KVM_GET_VCPU_MMAP_SIZE _IO(KVMIO, 0x04) /* in bytes */
692#define KVM_GET_SUPPORTED_CPUID _IOWR(KVMIO, 0x05, struct kvm_cpuid2)
693#define KVM_GET_EMULATED_CPUID _IOWR(KVMIO, 0x09, struct kvm_cpuid2)
694#define KVM_GET_MSR_FEATURE_INDEX_LIST _IOWR(KVMIO, 0x0a, struct kvm_msr_list)
695
696/*
697 * Extension capability list.
698 */
699#define KVM_CAP_IRQCHIP 0
700#define KVM_CAP_HLT 1
701#define KVM_CAP_MMU_SHADOW_CACHE_CONTROL 2
702#define KVM_CAP_USER_MEMORY 3
703#define KVM_CAP_SET_TSS_ADDR 4
704#define KVM_CAP_VAPIC 6
705#define KVM_CAP_EXT_CPUID 7
706#define KVM_CAP_CLOCKSOURCE 8
707#define KVM_CAP_NR_VCPUS 9 /* returns recommended max vcpus per vm */
708#define KVM_CAP_NR_MEMSLOTS 10 /* returns max memory slots per vm */
709#define KVM_CAP_PIT 11
710#define KVM_CAP_NOP_IO_DELAY 12
711#define KVM_CAP_PV_MMU 13
712#define KVM_CAP_MP_STATE 14
713#define KVM_CAP_COALESCED_MMIO 15
714#define KVM_CAP_SYNC_MMU 16 /* Changes to host mmap are reflected in guest */
715#define KVM_CAP_IOMMU 18
716/* Bug in KVM_SET_USER_MEMORY_REGION fixed: */
717#define KVM_CAP_DESTROY_MEMORY_REGION_WORKS 21
718#define KVM_CAP_USER_NMI 22
719#define KVM_CAP_SET_GUEST_DEBUG 23
720#ifdef __KVM_HAVE_PIT
721#define KVM_CAP_REINJECT_CONTROL 24
722#endif
723#define KVM_CAP_IRQ_ROUTING 25
724#define KVM_CAP_IRQ_INJECT_STATUS 26
725#define KVM_CAP_ASSIGN_DEV_IRQ 29
726/* Another bug in KVM_SET_USER_MEMORY_REGION fixed: */
727#define KVM_CAP_JOIN_MEMORY_REGIONS_WORKS 30
728#ifdef __KVM_HAVE_MCE
729#define KVM_CAP_MCE 31
730#endif
731#define KVM_CAP_IRQFD 32
732#ifdef __KVM_HAVE_PIT
733#define KVM_CAP_PIT2 33
734#endif
735#define KVM_CAP_SET_BOOT_CPU_ID 34
736#ifdef __KVM_HAVE_PIT_STATE2
737#define KVM_CAP_PIT_STATE2 35
738#endif
739#define KVM_CAP_IOEVENTFD 36
740#define KVM_CAP_SET_IDENTITY_MAP_ADDR 37
741#ifdef __KVM_HAVE_XEN_HVM
742#define KVM_CAP_XEN_HVM 38
743#endif
744#define KVM_CAP_ADJUST_CLOCK 39
745#define KVM_CAP_INTERNAL_ERROR_DATA 40
746#ifdef __KVM_HAVE_VCPU_EVENTS
747#define KVM_CAP_VCPU_EVENTS 41
748#endif
749#define KVM_CAP_S390_PSW 42
750#define KVM_CAP_PPC_SEGSTATE 43
751#define KVM_CAP_HYPERV 44
752#define KVM_CAP_HYPERV_VAPIC 45
753#define KVM_CAP_HYPERV_SPIN 46
754#define KVM_CAP_PCI_SEGMENT 47
755#define KVM_CAP_PPC_PAIRED_SINGLES 48
756#define KVM_CAP_INTR_SHADOW 49
757#ifdef __KVM_HAVE_DEBUGREGS
758#define KVM_CAP_DEBUGREGS 50
759#endif
760#define KVM_CAP_X86_ROBUST_SINGLESTEP 51
761#define KVM_CAP_PPC_OSI 52
762#define KVM_CAP_PPC_UNSET_IRQ 53
763#define KVM_CAP_ENABLE_CAP 54
764#ifdef __KVM_HAVE_XSAVE
765#define KVM_CAP_XSAVE 55
766#endif
767#ifdef __KVM_HAVE_XCRS
768#define KVM_CAP_XCRS 56
769#endif
770#define KVM_CAP_PPC_GET_PVINFO 57
771#define KVM_CAP_PPC_IRQ_LEVEL 58
772#define KVM_CAP_ASYNC_PF 59
773#define KVM_CAP_TSC_CONTROL 60
774#define KVM_CAP_GET_TSC_KHZ 61
775#define KVM_CAP_PPC_BOOKE_SREGS 62
776#define KVM_CAP_SPAPR_TCE 63
777#define KVM_CAP_PPC_SMT 64
778#define KVM_CAP_PPC_RMA 65
779#define KVM_CAP_MAX_VCPUS 66 /* returns max vcpus per vm */
780#define KVM_CAP_PPC_HIOR 67
781#define KVM_CAP_PPC_PAPR 68
782#define KVM_CAP_SW_TLB 69
783#define KVM_CAP_ONE_REG 70
784#define KVM_CAP_S390_GMAP 71
785#define KVM_CAP_TSC_DEADLINE_TIMER 72
786#define KVM_CAP_S390_UCONTROL 73
787#define KVM_CAP_SYNC_REGS 74
788#define KVM_CAP_PCI_2_3 75
789#define KVM_CAP_KVMCLOCK_CTRL 76
790#define KVM_CAP_SIGNAL_MSI 77
791#define KVM_CAP_PPC_GET_SMMU_INFO 78
792#define KVM_CAP_S390_COW 79
793#define KVM_CAP_PPC_ALLOC_HTAB 80
794#define KVM_CAP_READONLY_MEM 81
795#define KVM_CAP_IRQFD_RESAMPLE 82
796#define KVM_CAP_PPC_BOOKE_WATCHDOG 83
797#define KVM_CAP_PPC_HTAB_FD 84
798#define KVM_CAP_S390_CSS_SUPPORT 85
799#define KVM_CAP_PPC_EPR 86
800#define KVM_CAP_ARM_PSCI 87
801#define KVM_CAP_ARM_SET_DEVICE_ADDR 88
802#define KVM_CAP_DEVICE_CTRL 89
803#define KVM_CAP_IRQ_MPIC 90
804#define KVM_CAP_PPC_RTAS 91
805#define KVM_CAP_IRQ_XICS 92
806#define KVM_CAP_ARM_EL1_32BIT 93
807#define KVM_CAP_SPAPR_MULTITCE 94
808#define KVM_CAP_EXT_EMUL_CPUID 95
809#define KVM_CAP_HYPERV_TIME 96
810#define KVM_CAP_IOAPIC_POLARITY_IGNORED 97
811#define KVM_CAP_ENABLE_CAP_VM 98
812#define KVM_CAP_S390_IRQCHIP 99
813#define KVM_CAP_IOEVENTFD_NO_LENGTH 100
814#define KVM_CAP_VM_ATTRIBUTES 101
815#define KVM_CAP_ARM_PSCI_0_2 102
816#define KVM_CAP_PPC_FIXUP_HCALL 103
817#define KVM_CAP_PPC_ENABLE_HCALL 104
818#define KVM_CAP_CHECK_EXTENSION_VM 105
819#define KVM_CAP_S390_USER_SIGP 106
820#define KVM_CAP_S390_VECTOR_REGISTERS 107
821#define KVM_CAP_S390_MEM_OP 108
822#define KVM_CAP_S390_USER_STSI 109
823#define KVM_CAP_S390_SKEYS 110
824#define KVM_CAP_MIPS_FPU 111
825#define KVM_CAP_MIPS_MSA 112
826#define KVM_CAP_S390_INJECT_IRQ 113
827#define KVM_CAP_S390_IRQ_STATE 114
828#define KVM_CAP_PPC_HWRNG 115
829#define KVM_CAP_DISABLE_QUIRKS 116
830#define KVM_CAP_X86_SMM 117
831#define KVM_CAP_MULTI_ADDRESS_SPACE 118
832#define KVM_CAP_GUEST_DEBUG_HW_BPS 119
833#define KVM_CAP_GUEST_DEBUG_HW_WPS 120
834#define KVM_CAP_SPLIT_IRQCHIP 121
835#define KVM_CAP_IOEVENTFD_ANY_LENGTH 122
836#define KVM_CAP_HYPERV_SYNIC 123
837#define KVM_CAP_S390_RI 124
838#define KVM_CAP_SPAPR_TCE_64 125
839#define KVM_CAP_ARM_PMU_V3 126
840#define KVM_CAP_VCPU_ATTRIBUTES 127
841#define KVM_CAP_MAX_VCPU_ID 128
842#define KVM_CAP_X2APIC_API 129
843#define KVM_CAP_S390_USER_INSTR0 130
844#define KVM_CAP_MSI_DEVID 131
845#define KVM_CAP_PPC_HTM 132
846#define KVM_CAP_SPAPR_RESIZE_HPT 133
847#define KVM_CAP_PPC_MMU_RADIX 134
848#define KVM_CAP_PPC_MMU_HASH_V3 135
849#define KVM_CAP_IMMEDIATE_EXIT 136
850#define KVM_CAP_MIPS_VZ 137
851#define KVM_CAP_MIPS_TE 138
852#define KVM_CAP_MIPS_64BIT 139
853#define KVM_CAP_S390_GS 140
854#define KVM_CAP_S390_AIS 141
855#define KVM_CAP_SPAPR_TCE_VFIO 142
856#define KVM_CAP_X86_DISABLE_EXITS 143
857#define KVM_CAP_ARM_USER_IRQ 144
858#define KVM_CAP_S390_CMMA_MIGRATION 145
859#define KVM_CAP_PPC_FWNMI 146
860#define KVM_CAP_PPC_SMT_POSSIBLE 147
861#define KVM_CAP_HYPERV_SYNIC2 148
862#define KVM_CAP_HYPERV_VP_INDEX 149
863#define KVM_CAP_S390_AIS_MIGRATION 150
864#define KVM_CAP_PPC_GET_CPU_CHAR 151
865#define KVM_CAP_S390_BPB 152
866#define KVM_CAP_GET_MSR_FEATURES 153
867#define KVM_CAP_HYPERV_EVENTFD 154
868#define KVM_CAP_HYPERV_TLBFLUSH 155
869#define KVM_CAP_S390_HPAGE_1M 156
870#define KVM_CAP_NESTED_STATE 157
871#define KVM_CAP_ARM_INJECT_SERROR_ESR 158
872#define KVM_CAP_MSR_PLATFORM_INFO 159
873#define KVM_CAP_PPC_NESTED_HV 160
874#define KVM_CAP_HYPERV_SEND_IPI 161
875#define KVM_CAP_COALESCED_PIO 162
876#define KVM_CAP_HYPERV_ENLIGHTENED_VMCS 163
877#define KVM_CAP_EXCEPTION_PAYLOAD 164
878#define KVM_CAP_ARM_VM_IPA_SIZE 165
879#define KVM_CAP_MANUAL_DIRTY_LOG_PROTECT 166 /* Obsolete */
880#define KVM_CAP_HYPERV_CPUID 167
881#define KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2 168
882#define KVM_CAP_PPC_IRQ_XIVE 169
883#define KVM_CAP_ARM_SVE 170
884#define KVM_CAP_ARM_PTRAUTH_ADDRESS 171
885#define KVM_CAP_ARM_PTRAUTH_GENERIC 172
886#define KVM_CAP_PMU_EVENT_FILTER 173
887#define KVM_CAP_ARM_IRQ_LINE_LAYOUT_2 174
888#define KVM_CAP_HYPERV_DIRECT_TLBFLUSH 175
889#define KVM_CAP_PPC_GUEST_DEBUG_SSTEP 176
890#define KVM_CAP_ARM_NISV_TO_USER 177
891#define KVM_CAP_ARM_INJECT_EXT_DABT 178
892#define KVM_CAP_S390_VCPU_RESETS 179
893#define KVM_CAP_S390_PROTECTED 180
894#define KVM_CAP_PPC_SECURE_GUEST 181
895#define KVM_CAP_HALT_POLL 182
896#define KVM_CAP_ASYNC_PF_INT 183
897#define KVM_CAP_LAST_CPU 184
898#define KVM_CAP_SMALLER_MAXPHYADDR 185
899#define KVM_CAP_S390_DIAG318 186
900#define KVM_CAP_STEAL_TIME 187
901#define KVM_CAP_X86_USER_SPACE_MSR 188
902#define KVM_CAP_X86_MSR_FILTER 189
903#define KVM_CAP_ENFORCE_PV_FEATURE_CPUID 190
904#define KVM_CAP_SYS_HYPERV_CPUID 191
905#define KVM_CAP_DIRTY_LOG_RING 192
906#define KVM_CAP_X86_BUS_LOCK_EXIT 193
907#define KVM_CAP_PPC_DAWR1 194
908#define KVM_CAP_SET_GUEST_DEBUG2 195
909#define KVM_CAP_SGX_ATTRIBUTE 196
910#define KVM_CAP_VM_COPY_ENC_CONTEXT_FROM 197
911#define KVM_CAP_PTP_KVM 198
912#define KVM_CAP_HYPERV_ENFORCE_CPUID 199
913#define KVM_CAP_SREGS2 200
914#define KVM_CAP_EXIT_HYPERCALL 201
915#define KVM_CAP_PPC_RPT_INVALIDATE 202
916#define KVM_CAP_BINARY_STATS_FD 203
917#define KVM_CAP_EXIT_ON_EMULATION_FAILURE 204
918#define KVM_CAP_ARM_MTE 205
919#define KVM_CAP_VM_MOVE_ENC_CONTEXT_FROM 206
920#define KVM_CAP_VM_GPA_BITS 207
921#define KVM_CAP_XSAVE2 208
922#define KVM_CAP_SYS_ATTRIBUTES 209
923#define KVM_CAP_PPC_AIL_MODE_3 210
924#define KVM_CAP_S390_MEM_OP_EXTENSION 211
925#define KVM_CAP_PMU_CAPABILITY 212
926#define KVM_CAP_DISABLE_QUIRKS2 213
927#define KVM_CAP_VM_TSC_CONTROL 214
928#define KVM_CAP_SYSTEM_EVENT_DATA 215
929#define KVM_CAP_ARM_SYSTEM_SUSPEND 216
930#define KVM_CAP_S390_PROTECTED_DUMP 217
931#define KVM_CAP_X86_TRIPLE_FAULT_EVENT 218
932#define KVM_CAP_X86_NOTIFY_VMEXIT 219
933#define KVM_CAP_VM_DISABLE_NX_HUGE_PAGES 220
934#define KVM_CAP_S390_ZPCI_OP 221
935#define KVM_CAP_S390_CPU_TOPOLOGY 222
936#define KVM_CAP_DIRTY_LOG_RING_ACQ_REL 223
937#define KVM_CAP_S390_PROTECTED_ASYNC_DISABLE 224
938#define KVM_CAP_DIRTY_LOG_RING_WITH_BITMAP 225
939#define KVM_CAP_PMU_EVENT_MASKED_EVENTS 226
940#define KVM_CAP_COUNTER_OFFSET 227
941#define KVM_CAP_ARM_EAGER_SPLIT_CHUNK_SIZE 228
942#define KVM_CAP_ARM_SUPPORTED_BLOCK_SIZES 229
943#define KVM_CAP_ARM_SUPPORTED_REG_MASK_RANGES 230
944#define KVM_CAP_USER_MEMORY2 231
945#define KVM_CAP_MEMORY_FAULT_INFO 232
946#define KVM_CAP_MEMORY_ATTRIBUTES 233
947#define KVM_CAP_GUEST_MEMFD 234
948#define KVM_CAP_VM_TYPES 235
949#define KVM_CAP_PRE_FAULT_MEMORY 236
950#define KVM_CAP_X86_APIC_BUS_CYCLES_NS 237
951#define KVM_CAP_X86_GUEST_MODE 238
952#define KVM_CAP_ARM_WRITABLE_IMP_ID_REGS 239
953#define KVM_CAP_ARM_EL2 240
954#define KVM_CAP_ARM_EL2_E2H0 241
955#define KVM_CAP_RISCV_MP_STATE_RESET 242
956#define KVM_CAP_ARM_CACHEABLE_PFNMAP_SUPPORTED 243
957
958struct kvm_irq_routing_irqchip {
959 __u32 irqchip;
960 __u32 pin;
961};
962
963struct kvm_irq_routing_msi {
964 __u32 address_lo;
965 __u32 address_hi;
966 __u32 data;
967 union {
968 __u32 pad;
969 __u32 devid;
970 };
971};
972
973struct kvm_irq_routing_s390_adapter {
974 __u64 ind_addr;
975 __u64 summary_addr;
976 __u64 ind_offset;
977 __u32 summary_offset;
978 __u32 adapter_id;
979};
980
981struct kvm_irq_routing_hv_sint {
982 __u32 vcpu;
983 __u32 sint;
984};
985
986struct kvm_irq_routing_xen_evtchn {
987 __u32 port;
988 __u32 vcpu;
989 __u32 priority;
990};
991
992#define KVM_IRQ_ROUTING_XEN_EVTCHN_PRIO_2LEVEL ((__u32)(-1))
993
994/* gsi routing entry types */
995#define KVM_IRQ_ROUTING_IRQCHIP 1
996#define KVM_IRQ_ROUTING_MSI 2
997#define KVM_IRQ_ROUTING_S390_ADAPTER 3
998#define KVM_IRQ_ROUTING_HV_SINT 4
999#define KVM_IRQ_ROUTING_XEN_EVTCHN 5
1000
1001struct kvm_irq_routing_entry {
1002 __u32 gsi;
1003 __u32 type;
1004 __u32 flags;
1005 __u32 pad;
1006 union {
1007 struct kvm_irq_routing_irqchip irqchip;
1008 struct kvm_irq_routing_msi msi;
1009 struct kvm_irq_routing_s390_adapter adapter;
1010 struct kvm_irq_routing_hv_sint hv_sint;
1011 struct kvm_irq_routing_xen_evtchn xen_evtchn;
1012 __u32 pad[8];
1013 } u;
1014};
1015
1016struct kvm_irq_routing {
1017 __u32 nr;
1018 __u32 flags;
1019 struct kvm_irq_routing_entry entries[];
1020};
1021
1022#define KVM_IRQFD_FLAG_DEASSIGN (1 << 0)
1023/*
1024 * Available with KVM_CAP_IRQFD_RESAMPLE
1025 *
1026 * KVM_IRQFD_FLAG_RESAMPLE indicates resamplefd is valid and specifies
1027 * the irqfd to operate in resampling mode for level triggered interrupt
1028 * emulation. See Documentation/virt/kvm/api.rst.
1029 */
1030#define KVM_IRQFD_FLAG_RESAMPLE (1 << 1)
1031
1032struct kvm_irqfd {
1033 __u32 fd;
1034 __u32 gsi;
1035 __u32 flags;
1036 __u32 resamplefd;
1037 __u8 pad[16];
1038};
1039
1040/* For KVM_CAP_ADJUST_CLOCK */
1041
1042/* Do not use 1, KVM_CHECK_EXTENSION returned it before we had flags. */
1043#define KVM_CLOCK_TSC_STABLE 2
1044#define KVM_CLOCK_REALTIME (1 << 2)
1045#define KVM_CLOCK_HOST_TSC (1 << 3)
1046
1047struct kvm_clock_data {
1048 __u64 clock;
1049 __u32 flags;
1050 __u32 pad0;
1051 __u64 realtime;
1052 __u64 host_tsc;
1053 __u32 pad[4];
1054};
1055
1056/* For KVM_CAP_SW_TLB */
1057
1058#define KVM_MMU_FSL_BOOKE_NOHV 0
1059#define KVM_MMU_FSL_BOOKE_HV 1
1060
1061struct kvm_config_tlb {
1062 __u64 params;
1063 __u64 array;
1064 __u32 mmu_type;
1065 __u32 array_len;
1066};
1067
1068struct kvm_dirty_tlb {
1069 __u64 bitmap;
1070 __u32 num_dirty;
1071};
1072
1073/* Available with KVM_CAP_ONE_REG */
1074
1075#define KVM_REG_ARCH_MASK 0xff00000000000000ULL
1076#define KVM_REG_GENERIC 0x0000000000000000ULL
1077
1078/*
1079 * Architecture specific registers are to be defined in arch headers and
1080 * ORed with the arch identifier.
1081 */
1082#define KVM_REG_PPC 0x1000000000000000ULL
1083#define KVM_REG_X86 0x2000000000000000ULL
1084#define KVM_REG_IA64 0x3000000000000000ULL
1085#define KVM_REG_ARM 0x4000000000000000ULL
1086#define KVM_REG_S390 0x5000000000000000ULL
1087#define KVM_REG_ARM64 0x6000000000000000ULL
1088#define KVM_REG_MIPS 0x7000000000000000ULL
1089#define KVM_REG_RISCV 0x8000000000000000ULL
1090#define KVM_REG_LOONGARCH 0x9000000000000000ULL
1091
1092#define KVM_REG_SIZE_SHIFT 52
1093#define KVM_REG_SIZE_MASK 0x00f0000000000000ULL
1094
1095#define KVM_REG_SIZE(id) \
1096 (1U << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
1097
1098#define KVM_REG_SIZE_U8 0x0000000000000000ULL
1099#define KVM_REG_SIZE_U16 0x0010000000000000ULL
1100#define KVM_REG_SIZE_U32 0x0020000000000000ULL
1101#define KVM_REG_SIZE_U64 0x0030000000000000ULL
1102#define KVM_REG_SIZE_U128 0x0040000000000000ULL
1103#define KVM_REG_SIZE_U256 0x0050000000000000ULL
1104#define KVM_REG_SIZE_U512 0x0060000000000000ULL
1105#define KVM_REG_SIZE_U1024 0x0070000000000000ULL
1106#define KVM_REG_SIZE_U2048 0x0080000000000000ULL
1107
1108struct kvm_reg_list {
1109 __u64 n; /* number of regs */
1110 __u64 reg[];
1111};
1112
1113struct kvm_one_reg {
1114 __u64 id;
1115 __u64 addr;
1116};
1117
1118#define KVM_MSI_VALID_DEVID (1U << 0)
1119struct kvm_msi {
1120 __u32 address_lo;
1121 __u32 address_hi;
1122 __u32 data;
1123 __u32 flags;
1124 __u32 devid;
1125 __u8 pad[12];
1126};
1127
1128struct kvm_arm_device_addr {
1129 __u64 id;
1130 __u64 addr;
1131};
1132
1133/*
1134 * Device control API, available with KVM_CAP_DEVICE_CTRL
1135 */
1136#define KVM_CREATE_DEVICE_TEST 1
1137
1138struct kvm_create_device {
1139 __u32 type; /* in: KVM_DEV_TYPE_xxx */
1140 __u32 fd; /* out: device handle */
1141 __u32 flags; /* in: KVM_CREATE_DEVICE_xxx */
1142};
1143
1144struct kvm_device_attr {
1145 __u32 flags; /* no flags currently defined */
1146 __u32 group; /* device-defined */
1147 __u64 attr; /* group-defined */
1148 __u64 addr; /* userspace address of attr data */
1149};
1150
1151#define KVM_DEV_VFIO_FILE 1
1152
1153#define KVM_DEV_VFIO_FILE_ADD 1
1154#define KVM_DEV_VFIO_FILE_DEL 2
1155
1156/* KVM_DEV_VFIO_GROUP aliases are for compile time uapi compatibility */
1157#define KVM_DEV_VFIO_GROUP KVM_DEV_VFIO_FILE
1158
1159#define KVM_DEV_VFIO_GROUP_ADD KVM_DEV_VFIO_FILE_ADD
1160#define KVM_DEV_VFIO_GROUP_DEL KVM_DEV_VFIO_FILE_DEL
1161#define KVM_DEV_VFIO_GROUP_SET_SPAPR_TCE 3
1162
1163enum kvm_device_type {
1164 KVM_DEV_TYPE_FSL_MPIC_20 = 1,
1165#define KVM_DEV_TYPE_FSL_MPIC_20 KVM_DEV_TYPE_FSL_MPIC_20
1166 KVM_DEV_TYPE_FSL_MPIC_42,
1167#define KVM_DEV_TYPE_FSL_MPIC_42 KVM_DEV_TYPE_FSL_MPIC_42
1168 KVM_DEV_TYPE_XICS,
1169#define KVM_DEV_TYPE_XICS KVM_DEV_TYPE_XICS
1170 KVM_DEV_TYPE_VFIO,
1171#define KVM_DEV_TYPE_VFIO KVM_DEV_TYPE_VFIO
1172 KVM_DEV_TYPE_ARM_VGIC_V2,
1173#define KVM_DEV_TYPE_ARM_VGIC_V2 KVM_DEV_TYPE_ARM_VGIC_V2
1174 KVM_DEV_TYPE_FLIC,
1175#define KVM_DEV_TYPE_FLIC KVM_DEV_TYPE_FLIC
1176 KVM_DEV_TYPE_ARM_VGIC_V3,
1177#define KVM_DEV_TYPE_ARM_VGIC_V3 KVM_DEV_TYPE_ARM_VGIC_V3
1178 KVM_DEV_TYPE_ARM_VGIC_ITS,
1179#define KVM_DEV_TYPE_ARM_VGIC_ITS KVM_DEV_TYPE_ARM_VGIC_ITS
1180 KVM_DEV_TYPE_XIVE,
1181#define KVM_DEV_TYPE_XIVE KVM_DEV_TYPE_XIVE
1182 KVM_DEV_TYPE_ARM_PV_TIME,
1183#define KVM_DEV_TYPE_ARM_PV_TIME KVM_DEV_TYPE_ARM_PV_TIME
1184 KVM_DEV_TYPE_RISCV_AIA,
1185#define KVM_DEV_TYPE_RISCV_AIA KVM_DEV_TYPE_RISCV_AIA
1186 KVM_DEV_TYPE_LOONGARCH_IPI,
1187#define KVM_DEV_TYPE_LOONGARCH_IPI KVM_DEV_TYPE_LOONGARCH_IPI
1188 KVM_DEV_TYPE_LOONGARCH_EIOINTC,
1189#define KVM_DEV_TYPE_LOONGARCH_EIOINTC KVM_DEV_TYPE_LOONGARCH_EIOINTC
1190 KVM_DEV_TYPE_LOONGARCH_PCHPIC,
1191#define KVM_DEV_TYPE_LOONGARCH_PCHPIC KVM_DEV_TYPE_LOONGARCH_PCHPIC
1192
1193 KVM_DEV_TYPE_MAX,
1194
1195};
1196
1197struct kvm_vfio_spapr_tce {
1198 __s32 groupfd;
1199 __s32 tablefd;
1200};
1201
1202/*
1203 * KVM_CREATE_VCPU receives as a parameter the vcpu slot, and returns
1204 * a vcpu fd.
1205 */
1206#define KVM_CREATE_VCPU _IO(KVMIO, 0x41)
1207#define KVM_GET_DIRTY_LOG _IOW(KVMIO, 0x42, struct kvm_dirty_log)
1208#define KVM_SET_NR_MMU_PAGES _IO(KVMIO, 0x44)
1209#define KVM_GET_NR_MMU_PAGES _IO(KVMIO, 0x45) /* deprecated */
1210#define KVM_SET_USER_MEMORY_REGION _IOW(KVMIO, 0x46, \
1211 struct kvm_userspace_memory_region)
1212#define KVM_SET_TSS_ADDR _IO(KVMIO, 0x47)
1213#define KVM_SET_IDENTITY_MAP_ADDR _IOW(KVMIO, 0x48, __u64)
1214#define KVM_SET_USER_MEMORY_REGION2 _IOW(KVMIO, 0x49, \
1215 struct kvm_userspace_memory_region2)
1216
1217/* enable ucontrol for s390 */
1218#define KVM_S390_UCAS_MAP _IOW(KVMIO, 0x50, struct kvm_s390_ucas_mapping)
1219#define KVM_S390_UCAS_UNMAP _IOW(KVMIO, 0x51, struct kvm_s390_ucas_mapping)
1220#define KVM_S390_VCPU_FAULT _IOW(KVMIO, 0x52, unsigned long)
1221
1222/* Device model IOC */
1223#define KVM_CREATE_IRQCHIP _IO(KVMIO, 0x60)
1224#define KVM_IRQ_LINE _IOW(KVMIO, 0x61, struct kvm_irq_level)
1225#define KVM_GET_IRQCHIP _IOWR(KVMIO, 0x62, struct kvm_irqchip)
1226#define KVM_SET_IRQCHIP _IOR(KVMIO, 0x63, struct kvm_irqchip)
1227#define KVM_CREATE_PIT _IO(KVMIO, 0x64)
1228#define KVM_GET_PIT _IOWR(KVMIO, 0x65, struct kvm_pit_state)
1229#define KVM_SET_PIT _IOR(KVMIO, 0x66, struct kvm_pit_state)
1230#define KVM_IRQ_LINE_STATUS _IOWR(KVMIO, 0x67, struct kvm_irq_level)
1231#define KVM_REGISTER_COALESCED_MMIO \
1232 _IOW(KVMIO, 0x67, struct kvm_coalesced_mmio_zone)
1233#define KVM_UNREGISTER_COALESCED_MMIO \
1234 _IOW(KVMIO, 0x68, struct kvm_coalesced_mmio_zone)
1235#define KVM_SET_GSI_ROUTING _IOW(KVMIO, 0x6a, struct kvm_irq_routing)
1236#define KVM_REINJECT_CONTROL _IO(KVMIO, 0x71)
1237#define KVM_IRQFD _IOW(KVMIO, 0x76, struct kvm_irqfd)
1238#define KVM_CREATE_PIT2 _IOW(KVMIO, 0x77, struct kvm_pit_config)
1239#define KVM_SET_BOOT_CPU_ID _IO(KVMIO, 0x78)
1240#define KVM_IOEVENTFD _IOW(KVMIO, 0x79, struct kvm_ioeventfd)
1241#define KVM_XEN_HVM_CONFIG _IOW(KVMIO, 0x7a, struct kvm_xen_hvm_config)
1242#define KVM_SET_CLOCK _IOW(KVMIO, 0x7b, struct kvm_clock_data)
1243#define KVM_GET_CLOCK _IOR(KVMIO, 0x7c, struct kvm_clock_data)
1244/* Available with KVM_CAP_PIT_STATE2 */
1245#define KVM_GET_PIT2 _IOR(KVMIO, 0x9f, struct kvm_pit_state2)
1246#define KVM_SET_PIT2 _IOW(KVMIO, 0xa0, struct kvm_pit_state2)
1247/* Available with KVM_CAP_PPC_GET_PVINFO */
1248#define KVM_PPC_GET_PVINFO _IOW(KVMIO, 0xa1, struct kvm_ppc_pvinfo)
1249/* Available with KVM_CAP_TSC_CONTROL for a vCPU, or with
1250* KVM_CAP_VM_TSC_CONTROL to set defaults for a VM */
1251#define KVM_SET_TSC_KHZ _IO(KVMIO, 0xa2)
1252#define KVM_GET_TSC_KHZ _IO(KVMIO, 0xa3)
1253/* Available with KVM_CAP_SIGNAL_MSI */
1254#define KVM_SIGNAL_MSI _IOW(KVMIO, 0xa5, struct kvm_msi)
1255/* Available with KVM_CAP_PPC_GET_SMMU_INFO */
1256#define KVM_PPC_GET_SMMU_INFO _IOR(KVMIO, 0xa6, struct kvm_ppc_smmu_info)
1257/* Available with KVM_CAP_PPC_ALLOC_HTAB */
1258#define KVM_PPC_ALLOCATE_HTAB _IOWR(KVMIO, 0xa7, __u32)
1259#define KVM_CREATE_SPAPR_TCE _IOW(KVMIO, 0xa8, struct kvm_create_spapr_tce)
1260#define KVM_CREATE_SPAPR_TCE_64 _IOW(KVMIO, 0xa8, \
1261 struct kvm_create_spapr_tce_64)
1262/* Available with KVM_CAP_RMA */
1263#define KVM_ALLOCATE_RMA _IOR(KVMIO, 0xa9, struct kvm_allocate_rma)
1264/* Available with KVM_CAP_PPC_HTAB_FD */
1265#define KVM_PPC_GET_HTAB_FD _IOW(KVMIO, 0xaa, struct kvm_get_htab_fd)
1266/* Available with KVM_CAP_ARM_SET_DEVICE_ADDR */
1267#define KVM_ARM_SET_DEVICE_ADDR _IOW(KVMIO, 0xab, struct kvm_arm_device_addr)
1268/* Available with KVM_CAP_PPC_RTAS */
1269#define KVM_PPC_RTAS_DEFINE_TOKEN _IOW(KVMIO, 0xac, struct kvm_rtas_token_args)
1270/* Available with KVM_CAP_SPAPR_RESIZE_HPT */
1271#define KVM_PPC_RESIZE_HPT_PREPARE _IOR(KVMIO, 0xad, struct kvm_ppc_resize_hpt)
1272#define KVM_PPC_RESIZE_HPT_COMMIT _IOR(KVMIO, 0xae, struct kvm_ppc_resize_hpt)
1273/* Available with KVM_CAP_PPC_MMU_RADIX or KVM_CAP_PPC_MMU_HASH_V3 */
1274#define KVM_PPC_CONFIGURE_V3_MMU _IOW(KVMIO, 0xaf, struct kvm_ppc_mmuv3_cfg)
1275/* Available with KVM_CAP_PPC_MMU_RADIX */
1276#define KVM_PPC_GET_RMMU_INFO _IOW(KVMIO, 0xb0, struct kvm_ppc_rmmu_info)
1277/* Available with KVM_CAP_PPC_GET_CPU_CHAR */
1278#define KVM_PPC_GET_CPU_CHAR _IOR(KVMIO, 0xb1, struct kvm_ppc_cpu_char)
1279/* Available with KVM_CAP_PMU_EVENT_FILTER */
1280#define KVM_SET_PMU_EVENT_FILTER _IOW(KVMIO, 0xb2, struct kvm_pmu_event_filter)
1281#define KVM_PPC_SVM_OFF _IO(KVMIO, 0xb3)
1282#define KVM_ARM_MTE_COPY_TAGS _IOR(KVMIO, 0xb4, struct kvm_arm_copy_mte_tags)
1283/* Available with KVM_CAP_COUNTER_OFFSET */
1284#define KVM_ARM_SET_COUNTER_OFFSET _IOW(KVMIO, 0xb5, struct kvm_arm_counter_offset)
1285#define KVM_ARM_GET_REG_WRITABLE_MASKS _IOR(KVMIO, 0xb6, struct reg_mask_range)
1286
1287/* ioctl for vm fd */
1288#define KVM_CREATE_DEVICE _IOWR(KVMIO, 0xe0, struct kvm_create_device)
1289
1290/* ioctls for fds returned by KVM_CREATE_DEVICE */
1291#define KVM_SET_DEVICE_ATTR _IOW(KVMIO, 0xe1, struct kvm_device_attr)
1292#define KVM_GET_DEVICE_ATTR _IOW(KVMIO, 0xe2, struct kvm_device_attr)
1293#define KVM_HAS_DEVICE_ATTR _IOW(KVMIO, 0xe3, struct kvm_device_attr)
1294
1295/*
1296 * ioctls for vcpu fds
1297 */
1298#define KVM_RUN _IO(KVMIO, 0x80)
1299#define KVM_GET_REGS _IOR(KVMIO, 0x81, struct kvm_regs)
1300#define KVM_SET_REGS _IOW(KVMIO, 0x82, struct kvm_regs)
1301#define KVM_GET_SREGS _IOR(KVMIO, 0x83, struct kvm_sregs)
1302#define KVM_SET_SREGS _IOW(KVMIO, 0x84, struct kvm_sregs)
1303#define KVM_TRANSLATE _IOWR(KVMIO, 0x85, struct kvm_translation)
1304#define KVM_INTERRUPT _IOW(KVMIO, 0x86, struct kvm_interrupt)
1305#define KVM_GET_MSRS _IOWR(KVMIO, 0x88, struct kvm_msrs)
1306#define KVM_SET_MSRS _IOW(KVMIO, 0x89, struct kvm_msrs)
1307#define KVM_SET_CPUID _IOW(KVMIO, 0x8a, struct kvm_cpuid)
1308#define KVM_SET_SIGNAL_MASK _IOW(KVMIO, 0x8b, struct kvm_signal_mask)
1309#define KVM_GET_FPU _IOR(KVMIO, 0x8c, struct kvm_fpu)
1310#define KVM_SET_FPU _IOW(KVMIO, 0x8d, struct kvm_fpu)
1311#define KVM_GET_LAPIC _IOR(KVMIO, 0x8e, struct kvm_lapic_state)
1312#define KVM_SET_LAPIC _IOW(KVMIO, 0x8f, struct kvm_lapic_state)
1313#define KVM_SET_CPUID2 _IOW(KVMIO, 0x90, struct kvm_cpuid2)
1314#define KVM_GET_CPUID2 _IOWR(KVMIO, 0x91, struct kvm_cpuid2)
1315/* Available with KVM_CAP_VAPIC */
1316#define KVM_TPR_ACCESS_REPORTING _IOWR(KVMIO, 0x92, struct kvm_tpr_access_ctl)
1317/* Available with KVM_CAP_VAPIC */
1318#define KVM_SET_VAPIC_ADDR _IOW(KVMIO, 0x93, struct kvm_vapic_addr)
1319/* valid for virtual machine (for floating interrupt)_and_ vcpu */
1320#define KVM_S390_INTERRUPT _IOW(KVMIO, 0x94, struct kvm_s390_interrupt)
1321/* store status for s390 */
1322#define KVM_S390_STORE_STATUS_NOADDR (-1ul)
1323#define KVM_S390_STORE_STATUS_PREFIXED (-2ul)
1324#define KVM_S390_STORE_STATUS _IOW(KVMIO, 0x95, unsigned long)
1325/* initial ipl psw for s390 */
1326#define KVM_S390_SET_INITIAL_PSW _IOW(KVMIO, 0x96, struct kvm_s390_psw)
1327/* initial reset for s390 */
1328#define KVM_S390_INITIAL_RESET _IO(KVMIO, 0x97)
1329#define KVM_GET_MP_STATE _IOR(KVMIO, 0x98, struct kvm_mp_state)
1330#define KVM_SET_MP_STATE _IOW(KVMIO, 0x99, struct kvm_mp_state)
1331/* Available with KVM_CAP_USER_NMI */
1332#define KVM_NMI _IO(KVMIO, 0x9a)
1333/* Available with KVM_CAP_SET_GUEST_DEBUG */
1334#define KVM_SET_GUEST_DEBUG _IOW(KVMIO, 0x9b, struct kvm_guest_debug)
1335/* MCE for x86 */
1336#define KVM_X86_SETUP_MCE _IOW(KVMIO, 0x9c, __u64)
1337#define KVM_X86_GET_MCE_CAP_SUPPORTED _IOR(KVMIO, 0x9d, __u64)
1338#define KVM_X86_SET_MCE _IOW(KVMIO, 0x9e, struct kvm_x86_mce)
1339/* Available with KVM_CAP_VCPU_EVENTS */
1340#define KVM_GET_VCPU_EVENTS _IOR(KVMIO, 0x9f, struct kvm_vcpu_events)
1341#define KVM_SET_VCPU_EVENTS _IOW(KVMIO, 0xa0, struct kvm_vcpu_events)
1342/* Available with KVM_CAP_DEBUGREGS */
1343#define KVM_GET_DEBUGREGS _IOR(KVMIO, 0xa1, struct kvm_debugregs)
1344#define KVM_SET_DEBUGREGS _IOW(KVMIO, 0xa2, struct kvm_debugregs)
1345/*
1346 * vcpu version available with KVM_CAP_ENABLE_CAP
1347 * vm version available with KVM_CAP_ENABLE_CAP_VM
1348 */
1349#define KVM_ENABLE_CAP _IOW(KVMIO, 0xa3, struct kvm_enable_cap)
1350/* Available with KVM_CAP_XSAVE */
1351#define KVM_GET_XSAVE _IOR(KVMIO, 0xa4, struct kvm_xsave)
1352#define KVM_SET_XSAVE _IOW(KVMIO, 0xa5, struct kvm_xsave)
1353/* Available with KVM_CAP_XCRS */
1354#define KVM_GET_XCRS _IOR(KVMIO, 0xa6, struct kvm_xcrs)
1355#define KVM_SET_XCRS _IOW(KVMIO, 0xa7, struct kvm_xcrs)
1356/* Available with KVM_CAP_SW_TLB */
1357#define KVM_DIRTY_TLB _IOW(KVMIO, 0xaa, struct kvm_dirty_tlb)
1358/* Available with KVM_CAP_ONE_REG */
1359#define KVM_GET_ONE_REG _IOW(KVMIO, 0xab, struct kvm_one_reg)
1360#define KVM_SET_ONE_REG _IOW(KVMIO, 0xac, struct kvm_one_reg)
1361/* VM is being stopped by host */
1362#define KVM_KVMCLOCK_CTRL _IO(KVMIO, 0xad)
1363#define KVM_ARM_VCPU_INIT _IOW(KVMIO, 0xae, struct kvm_vcpu_init)
1364#define KVM_ARM_PREFERRED_TARGET _IOR(KVMIO, 0xaf, struct kvm_vcpu_init)
1365#define KVM_GET_REG_LIST _IOWR(KVMIO, 0xb0, struct kvm_reg_list)
1366/* Available with KVM_CAP_S390_MEM_OP */
1367#define KVM_S390_MEM_OP _IOW(KVMIO, 0xb1, struct kvm_s390_mem_op)
1368/* Available with KVM_CAP_S390_SKEYS */
1369#define KVM_S390_GET_SKEYS _IOW(KVMIO, 0xb2, struct kvm_s390_skeys)
1370#define KVM_S390_SET_SKEYS _IOW(KVMIO, 0xb3, struct kvm_s390_skeys)
1371/* Available with KVM_CAP_S390_INJECT_IRQ */
1372#define KVM_S390_IRQ _IOW(KVMIO, 0xb4, struct kvm_s390_irq)
1373/* Available with KVM_CAP_S390_IRQ_STATE */
1374#define KVM_S390_SET_IRQ_STATE _IOW(KVMIO, 0xb5, struct kvm_s390_irq_state)
1375#define KVM_S390_GET_IRQ_STATE _IOW(KVMIO, 0xb6, struct kvm_s390_irq_state)
1376/* Available with KVM_CAP_X86_SMM */
1377#define KVM_SMI _IO(KVMIO, 0xb7)
1378/* Available with KVM_CAP_S390_CMMA_MIGRATION */
1379#define KVM_S390_GET_CMMA_BITS _IOWR(KVMIO, 0xb8, struct kvm_s390_cmma_log)
1380#define KVM_S390_SET_CMMA_BITS _IOW(KVMIO, 0xb9, struct kvm_s390_cmma_log)
1381/* Memory Encryption Commands */
1382#define KVM_MEMORY_ENCRYPT_OP _IOWR(KVMIO, 0xba, unsigned long)
1383
1384struct kvm_enc_region {
1385 __u64 addr;
1386 __u64 size;
1387};
1388
1389#define KVM_MEMORY_ENCRYPT_REG_REGION _IOR(KVMIO, 0xbb, struct kvm_enc_region)
1390#define KVM_MEMORY_ENCRYPT_UNREG_REGION _IOR(KVMIO, 0xbc, struct kvm_enc_region)
1391
1392/* Available with KVM_CAP_HYPERV_EVENTFD */
1393#define KVM_HYPERV_EVENTFD _IOW(KVMIO, 0xbd, struct kvm_hyperv_eventfd)
1394
1395/* Available with KVM_CAP_NESTED_STATE */
1396#define KVM_GET_NESTED_STATE _IOWR(KVMIO, 0xbe, struct kvm_nested_state)
1397#define KVM_SET_NESTED_STATE _IOW(KVMIO, 0xbf, struct kvm_nested_state)
1398
1399/* Available with KVM_CAP_MANUAL_DIRTY_LOG_PROTECT_2 */
1400#define KVM_CLEAR_DIRTY_LOG _IOWR(KVMIO, 0xc0, struct kvm_clear_dirty_log)
1401
1402/* Available with KVM_CAP_HYPERV_CPUID (vcpu) / KVM_CAP_SYS_HYPERV_CPUID (system) */
1403#define KVM_GET_SUPPORTED_HV_CPUID _IOWR(KVMIO, 0xc1, struct kvm_cpuid2)
1404
1405/* Available with KVM_CAP_ARM_SVE */
1406#define KVM_ARM_VCPU_FINALIZE _IOW(KVMIO, 0xc2, int)
1407
1408/* Available with KVM_CAP_S390_VCPU_RESETS */
1409#define KVM_S390_NORMAL_RESET _IO(KVMIO, 0xc3)
1410#define KVM_S390_CLEAR_RESET _IO(KVMIO, 0xc4)
1411
1412/* Available with KVM_CAP_S390_PROTECTED */
1413#define KVM_S390_PV_COMMAND _IOWR(KVMIO, 0xc5, struct kvm_pv_cmd)
1414
1415/* Available with KVM_CAP_X86_MSR_FILTER */
1416#define KVM_X86_SET_MSR_FILTER _IOW(KVMIO, 0xc6, struct kvm_msr_filter)
1417
1418/* Available with KVM_CAP_DIRTY_LOG_RING */
1419#define KVM_RESET_DIRTY_RINGS _IO(KVMIO, 0xc7)
1420
1421/* Per-VM Xen attributes */
1422#define KVM_XEN_HVM_GET_ATTR _IOWR(KVMIO, 0xc8, struct kvm_xen_hvm_attr)
1423#define KVM_XEN_HVM_SET_ATTR _IOW(KVMIO, 0xc9, struct kvm_xen_hvm_attr)
1424
1425/* Per-vCPU Xen attributes */
1426#define KVM_XEN_VCPU_GET_ATTR _IOWR(KVMIO, 0xca, struct kvm_xen_vcpu_attr)
1427#define KVM_XEN_VCPU_SET_ATTR _IOW(KVMIO, 0xcb, struct kvm_xen_vcpu_attr)
1428
1429/* Available with KVM_CAP_XEN_HVM / KVM_XEN_HVM_CONFIG_EVTCHN_SEND */
1430#define KVM_XEN_HVM_EVTCHN_SEND _IOW(KVMIO, 0xd0, struct kvm_irq_routing_xen_evtchn)
1431
1432#define KVM_GET_SREGS2 _IOR(KVMIO, 0xcc, struct kvm_sregs2)
1433#define KVM_SET_SREGS2 _IOW(KVMIO, 0xcd, struct kvm_sregs2)
1434
1435#define KVM_DIRTY_LOG_MANUAL_PROTECT_ENABLE (1 << 0)
1436#define KVM_DIRTY_LOG_INITIALLY_SET (1 << 1)
1437
1438/*
1439 * Arch needs to define the macro after implementing the dirty ring
1440 * feature. KVM_DIRTY_LOG_PAGE_OFFSET should be defined as the
1441 * starting page offset of the dirty ring structures.
1442 */
1443#ifndef KVM_DIRTY_LOG_PAGE_OFFSET
1444#define KVM_DIRTY_LOG_PAGE_OFFSET 0
1445#endif
1446
1447/*
1448 * KVM dirty GFN flags, defined as:
1449 *
1450 * |---------------+---------------+--------------|
1451 * | bit 1 (reset) | bit 0 (dirty) | Status |
1452 * |---------------+---------------+--------------|
1453 * | 0 | 0 | Invalid GFN |
1454 * | 0 | 1 | Dirty GFN |
1455 * | 1 | X | GFN to reset |
1456 * |---------------+---------------+--------------|
1457 *
1458 * Lifecycle of a dirty GFN goes like:
1459 *
1460 * dirtied harvested reset
1461 * 00 -----------> 01 -------------> 1X -------+
1462 * ^ |
1463 * | |
1464 * +------------------------------------------+
1465 *
1466 * The userspace program is only responsible for the 01->1X state
1467 * conversion after harvesting an entry. Also, it must not skip any
1468 * dirty bits, so that dirty bits are always harvested in sequence.
1469 */
1470#define KVM_DIRTY_GFN_F_DIRTY _BITUL(0)
1471#define KVM_DIRTY_GFN_F_RESET _BITUL(1)
1472#define KVM_DIRTY_GFN_F_MASK 0x3
1473
1474/*
1475 * KVM dirty rings should be mapped at KVM_DIRTY_LOG_PAGE_OFFSET of
1476 * per-vcpu mmaped regions as an array of struct kvm_dirty_gfn. The
1477 * size of the gfn buffer is decided by the first argument when
1478 * enabling KVM_CAP_DIRTY_LOG_RING.
1479 */
1480struct kvm_dirty_gfn {
1481 __u32 flags;
1482 __u32 slot;
1483 __u64 offset;
1484};
1485
1486#define KVM_BUS_LOCK_DETECTION_OFF (1 << 0)
1487#define KVM_BUS_LOCK_DETECTION_EXIT (1 << 1)
1488
1489#define KVM_PMU_CAP_DISABLE (1 << 0)
1490
1491/**
1492 * struct kvm_stats_header - Header of per vm/vcpu binary statistics data.
1493 * @flags: Some extra information for header, always 0 for now.
1494 * @name_size: The size in bytes of the memory which contains statistics
1495 * name string including trailing '\0'. The memory is allocated
1496 * at the send of statistics descriptor.
1497 * @num_desc: The number of statistics the vm or vcpu has.
1498 * @id_offset: The offset of the vm/vcpu stats' id string in the file pointed
1499 * by vm/vcpu stats fd.
1500 * @desc_offset: The offset of the vm/vcpu stats' descriptor block in the file
1501 * pointd by vm/vcpu stats fd.
1502 * @data_offset: The offset of the vm/vcpu stats' data block in the file
1503 * pointed by vm/vcpu stats fd.
1504 *
1505 * This is the header userspace needs to read from stats fd before any other
1506 * readings. It is used by userspace to discover all the information about the
1507 * vm/vcpu's binary statistics.
1508 * Userspace reads this header from the start of the vm/vcpu's stats fd.
1509 */
1510struct kvm_stats_header {
1511 __u32 flags;
1512 __u32 name_size;
1513 __u32 num_desc;
1514 __u32 id_offset;
1515 __u32 desc_offset;
1516 __u32 data_offset;
1517};
1518
1519#define KVM_STATS_TYPE_SHIFT 0
1520#define KVM_STATS_TYPE_MASK (0xF << KVM_STATS_TYPE_SHIFT)
1521#define KVM_STATS_TYPE_CUMULATIVE (0x0 << KVM_STATS_TYPE_SHIFT)
1522#define KVM_STATS_TYPE_INSTANT (0x1 << KVM_STATS_TYPE_SHIFT)
1523#define KVM_STATS_TYPE_PEAK (0x2 << KVM_STATS_TYPE_SHIFT)
1524#define KVM_STATS_TYPE_LINEAR_HIST (0x3 << KVM_STATS_TYPE_SHIFT)
1525#define KVM_STATS_TYPE_LOG_HIST (0x4 << KVM_STATS_TYPE_SHIFT)
1526#define KVM_STATS_TYPE_MAX KVM_STATS_TYPE_LOG_HIST
1527
1528#define KVM_STATS_UNIT_SHIFT 4
1529#define KVM_STATS_UNIT_MASK (0xF << KVM_STATS_UNIT_SHIFT)
1530#define KVM_STATS_UNIT_NONE (0x0 << KVM_STATS_UNIT_SHIFT)
1531#define KVM_STATS_UNIT_BYTES (0x1 << KVM_STATS_UNIT_SHIFT)
1532#define KVM_STATS_UNIT_SECONDS (0x2 << KVM_STATS_UNIT_SHIFT)
1533#define KVM_STATS_UNIT_CYCLES (0x3 << KVM_STATS_UNIT_SHIFT)
1534#define KVM_STATS_UNIT_BOOLEAN (0x4 << KVM_STATS_UNIT_SHIFT)
1535#define KVM_STATS_UNIT_MAX KVM_STATS_UNIT_BOOLEAN
1536
1537#define KVM_STATS_BASE_SHIFT 8
1538#define KVM_STATS_BASE_MASK (0xF << KVM_STATS_BASE_SHIFT)
1539#define KVM_STATS_BASE_POW10 (0x0 << KVM_STATS_BASE_SHIFT)
1540#define KVM_STATS_BASE_POW2 (0x1 << KVM_STATS_BASE_SHIFT)
1541#define KVM_STATS_BASE_MAX KVM_STATS_BASE_POW2
1542
1543/**
1544 * struct kvm_stats_desc - Descriptor of a KVM statistics.
1545 * @flags: Annotations of the stats, like type, unit, etc.
1546 * @exponent: Used together with @flags to determine the unit.
1547 * @size: The number of data items for this stats.
1548 * Every data item is of type __u64.
1549 * @offset: The offset of the stats to the start of stat structure in
1550 * structure kvm or kvm_vcpu.
1551 * @bucket_size: A parameter value used for histogram stats. It is only used
1552 * for linear histogram stats, specifying the size of the bucket;
1553 * @name: The name string for the stats. Its size is indicated by the
1554 * &kvm_stats_header->name_size.
1555 */
1556struct kvm_stats_desc {
1557 __u32 flags;
1558 __s16 exponent;
1559 __u16 size;
1560 __u32 offset;
1561 __u32 bucket_size;
1562 char name[];
1563};
1564
1565#define KVM_GET_STATS_FD _IO(KVMIO, 0xce)
1566
1567/* Available with KVM_CAP_XSAVE2 */
1568#define KVM_GET_XSAVE2 _IOR(KVMIO, 0xcf, struct kvm_xsave)
1569
1570/* Available with KVM_CAP_S390_PROTECTED_DUMP */
1571#define KVM_S390_PV_CPU_COMMAND _IOWR(KVMIO, 0xd0, struct kvm_pv_cmd)
1572
1573/* Available with KVM_CAP_X86_NOTIFY_VMEXIT */
1574#define KVM_X86_NOTIFY_VMEXIT_ENABLED (1ULL << 0)
1575#define KVM_X86_NOTIFY_VMEXIT_USER (1ULL << 1)
1576
1577/* Available with KVM_CAP_S390_ZPCI_OP */
1578#define KVM_S390_ZPCI_OP _IOW(KVMIO, 0xd1, struct kvm_s390_zpci_op)
1579
1580/* Available with KVM_CAP_MEMORY_ATTRIBUTES */
1581#define KVM_SET_MEMORY_ATTRIBUTES _IOW(KVMIO, 0xd2, struct kvm_memory_attributes)
1582
1583struct kvm_memory_attributes {
1584 __u64 address;
1585 __u64 size;
1586 __u64 attributes;
1587 __u64 flags;
1588};
1589
1590#define KVM_MEMORY_ATTRIBUTE_PRIVATE (1ULL << 3)
1591
1592#define KVM_CREATE_GUEST_MEMFD _IOWR(KVMIO, 0xd4, struct kvm_create_guest_memfd)
1593
1594struct kvm_create_guest_memfd {
1595 __u64 size;
1596 __u64 flags;
1597 __u64 reserved[6];
1598};
1599
1600#define KVM_PRE_FAULT_MEMORY _IOWR(KVMIO, 0xd5, struct kvm_pre_fault_memory)
1601
1602struct kvm_pre_fault_memory {
1603 __u64 gpa;
1604 __u64 size;
1605 __u64 flags;
1606 __u64 padding[5];
1607};
1608
1609#endif /* __LINUX_KVM_H */