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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#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#ifdef __KERNEL__
204#define HINT_UNSAFE_IN_KVM(_symbol) _symbol##__unsafe
205#else
206#define HINT_UNSAFE_IN_KVM(_symbol) _symbol
207#endif
208
209/* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */
210struct kvm_run {
211 /* in */
212 __u8 request_interrupt_window;
213 __u8 HINT_UNSAFE_IN_KVM(immediate_exit);
214 __u8 padding1[6];
215
216 /* out */
217 __u32 exit_reason;
218 __u8 ready_for_interrupt_injection;
219 __u8 if_flag;
220 __u16 flags;
221
222 /* in (pre_kvm_run), out (post_kvm_run) */
223 __u64 cr8;
224 __u64 apic_base;
225
226#ifdef __KVM_S390
227 /* the processor status word for s390 */
228 __u64 psw_mask; /* psw upper half */
229 __u64 psw_addr; /* psw lower half */
230#endif
231 union {
232 /* KVM_EXIT_UNKNOWN */
233 struct {
234 __u64 hardware_exit_reason;
235 } hw;
236 /* KVM_EXIT_FAIL_ENTRY */
237 struct {
238 __u64 hardware_entry_failure_reason;
239 __u32 cpu;
240 } fail_entry;
241 /* KVM_EXIT_EXCEPTION */
242 struct {
243 __u32 exception;
244 __u32 error_code;
245 } ex;
246 /* KVM_EXIT_IO */
247 struct {
248#define KVM_EXIT_IO_IN 0
249#define KVM_EXIT_IO_OUT 1
250 __u8 direction;
251 __u8 size; /* bytes */
252 __u16 port;
253 __u32 count;
254 __u64 data_offset; /* relative to kvm_run start */
255 } io;
256 /* KVM_EXIT_DEBUG */
257 struct {
258 struct kvm_debug_exit_arch arch;
259 } debug;
260 /* KVM_EXIT_MMIO */
261 struct {
262 __u64 phys_addr;
263 __u8 data[8];
264 __u32 len;
265 __u8 is_write;
266 } mmio;
267 /* KVM_EXIT_LOONGARCH_IOCSR */
268 struct {
269 __u64 phys_addr;
270 __u8 data[8];
271 __u32 len;
272 __u8 is_write;
273 } iocsr_io;
274 /* KVM_EXIT_HYPERCALL */
275 struct {
276 __u64 nr;
277 __u64 args[6];
278 __u64 ret;
279
280 union {
281#ifndef __KERNEL__
282 __u32 longmode;
283#endif
284 __u64 flags;
285 };
286 } hypercall;
287 /* KVM_EXIT_TPR_ACCESS */
288 struct {
289 __u64 rip;
290 __u32 is_write;
291 __u32 pad;
292 } tpr_access;
293 /* KVM_EXIT_S390_SIEIC */
294 struct {
295 __u8 icptcode;
296 __u16 ipa;
297 __u32 ipb;
298 } s390_sieic;
299 /* KVM_EXIT_S390_RESET */
300 __u64 s390_reset_flags;
301 /* KVM_EXIT_S390_UCONTROL */
302 struct {
303 __u64 trans_exc_code;
304 __u32 pgm_code;
305 } s390_ucontrol;
306 /* KVM_EXIT_DCR (deprecated) */
307 struct {
308 __u32 dcrn;
309 __u32 data;
310 __u8 is_write;
311 } dcr;
312 /* KVM_EXIT_INTERNAL_ERROR */
313 struct {
314 __u32 suberror;
315 /* Available with KVM_CAP_INTERNAL_ERROR_DATA: */
316 __u32 ndata;
317 __u64 data[16];
318 } internal;
319 /*
320 * KVM_INTERNAL_ERROR_EMULATION
321 *
322 * "struct emulation_failure" is an overlay of "struct internal"
323 * that is used for the KVM_INTERNAL_ERROR_EMULATION sub-type of
324 * KVM_EXIT_INTERNAL_ERROR. Note, unlike other internal error
325 * sub-types, this struct is ABI! It also needs to be backwards
326 * compatible with "struct internal". Take special care that
327 * "ndata" is correct, that new fields are enumerated in "flags",
328 * and that each flag enumerates fields that are 64-bit aligned
329 * and sized (so that ndata+internal.data[] is valid/accurate).
330 *
331 * Space beyond the defined fields may be used to store arbitrary
332 * debug information relating to the emulation failure. It is
333 * accounted for in "ndata" but the format is unspecified and is
334 * not represented in "flags". Any such information is *not* ABI!
335 */
336 struct {
337 __u32 suberror;
338 __u32 ndata;
339 __u64 flags;
340 union {
341 struct {
342 __u8 insn_size;
343 __u8 insn_bytes[15];
344 };
345 };
346 /* Arbitrary debug data may follow. */
347 } emulation_failure;
348 /* KVM_EXIT_OSI */
349 struct {
350 __u64 gprs[32];
351 } osi;
352 /* KVM_EXIT_PAPR_HCALL */
353 struct {
354 __u64 nr;
355 __u64 ret;
356 __u64 args[9];
357 } papr_hcall;
358 /* KVM_EXIT_S390_TSCH */
359 struct {
360 __u16 subchannel_id;
361 __u16 subchannel_nr;
362 __u32 io_int_parm;
363 __u32 io_int_word;
364 __u32 ipb;
365 __u8 dequeued;
366 } s390_tsch;
367 /* KVM_EXIT_EPR */
368 struct {
369 __u32 epr;
370 } epr;
371 /* KVM_EXIT_SYSTEM_EVENT */
372 struct {
373#define KVM_SYSTEM_EVENT_SHUTDOWN 1
374#define KVM_SYSTEM_EVENT_RESET 2
375#define KVM_SYSTEM_EVENT_CRASH 3
376#define KVM_SYSTEM_EVENT_WAKEUP 4
377#define KVM_SYSTEM_EVENT_SUSPEND 5
378#define KVM_SYSTEM_EVENT_SEV_TERM 6
379#define KVM_SYSTEM_EVENT_TDX_FATAL 7
380 __u32 type;
381 __u32 ndata;
382 union {
383#ifndef __KERNEL__
384 __u64 flags;
385#endif
386 __u64 data[16];
387 };
388 } system_event;
389 /* KVM_EXIT_S390_STSI */
390 struct {
391 __u64 addr;
392 __u8 ar;
393 __u8 reserved;
394 __u8 fc;
395 __u8 sel1;
396 __u16 sel2;
397 } s390_stsi;
398 /* KVM_EXIT_IOAPIC_EOI */
399 struct {
400 __u8 vector;
401 } eoi;
402 /* KVM_EXIT_HYPERV */
403 struct kvm_hyperv_exit hyperv;
404 /* KVM_EXIT_ARM_NISV */
405 struct {
406 __u64 esr_iss;
407 __u64 fault_ipa;
408 } arm_nisv;
409 /* KVM_EXIT_X86_RDMSR / KVM_EXIT_X86_WRMSR */
410 struct {
411 __u8 error; /* user -> kernel */
412 __u8 pad[7];
413#define KVM_MSR_EXIT_REASON_INVAL (1 << 0)
414#define KVM_MSR_EXIT_REASON_UNKNOWN (1 << 1)
415#define KVM_MSR_EXIT_REASON_FILTER (1 << 2)
416#define KVM_MSR_EXIT_REASON_VALID_MASK (KVM_MSR_EXIT_REASON_INVAL | \
417 KVM_MSR_EXIT_REASON_UNKNOWN | \
418 KVM_MSR_EXIT_REASON_FILTER)
419 __u32 reason; /* kernel -> user */
420 __u32 index; /* kernel -> user */
421 __u64 data; /* kernel <-> user */
422 } msr;
423 /* KVM_EXIT_XEN */
424 struct kvm_xen_exit xen;
425 /* KVM_EXIT_RISCV_SBI */
426 struct {
427 unsigned long extension_id;
428 unsigned long function_id;
429 unsigned long args[6];
430 unsigned long ret[2];
431 } riscv_sbi;
432 /* KVM_EXIT_RISCV_CSR */
433 struct {
434 unsigned long csr_num;
435 unsigned long new_value;
436 unsigned long write_mask;
437 unsigned long ret_value;
438 } riscv_csr;
439 /* KVM_EXIT_NOTIFY */
440 struct {
441#define KVM_NOTIFY_CONTEXT_INVALID (1 << 0)
442 __u32 flags;
443 } notify;
444 /* KVM_EXIT_MEMORY_FAULT */
445 struct {
446#define KVM_MEMORY_EXIT_FLAG_PRIVATE (1ULL << 3)
447 __u64 flags;
448 __u64 gpa;
449 __u64 size;
450 } memory_fault;
451 /* KVM_EXIT_TDX */
452 struct {
453 __u64 flags;
454 __u64 nr;
455 union {
456 struct {
457 __u64 ret;
458 __u64 data[5];
459 } unknown;
460 struct {
461 __u64 ret;
462 __u64 gpa;
463 __u64 size;
464 } get_quote;
465 struct {
466 __u64 ret;
467 __u64 leaf;
468 __u64 r11, r12, r13, r14;
469 } get_tdvmcall_info;
470 struct {
471 __u64 ret;
472 __u64 vector;
473 } setup_event_notify;
474 };
475 } tdx;
476 /* Fix the size of the union. */
477 char padding[256];
478 };
479
480 /* 2048 is the size of the char array used to bound/pad the size
481 * of the union that holds sync regs.
482 */
483 #define SYNC_REGS_SIZE_BYTES 2048
484 /*
485 * shared registers between kvm and userspace.
486 * kvm_valid_regs specifies the register classes set by the host
487 * kvm_dirty_regs specified the register classes dirtied by userspace
488 * struct kvm_sync_regs is architecture specific, as well as the
489 * bits for kvm_valid_regs and kvm_dirty_regs
490 */
491 __u64 kvm_valid_regs;
492 __u64 kvm_dirty_regs;
493 union {
494 struct kvm_sync_regs regs;
495 char padding[SYNC_REGS_SIZE_BYTES];
496 } s;
497};
498
499/* for KVM_REGISTER_COALESCED_MMIO / KVM_UNREGISTER_COALESCED_MMIO */
500
501struct kvm_coalesced_mmio_zone {
502 __u64 addr;
503 __u32 size;
504 union {
505 __u32 pad;
506 __u32 pio;
507 };
508};
509
510struct kvm_coalesced_mmio {
511 __u64 phys_addr;
512 __u32 len;
513 union {
514 __u32 pad;
515 __u32 pio;
516 };
517 __u8 data[8];
518};
519
520struct kvm_coalesced_mmio_ring {
521 __u32 first, last;
522 struct kvm_coalesced_mmio coalesced_mmio[];
523};
524
525#define KVM_COALESCED_MMIO_MAX \
526 ((PAGE_SIZE - sizeof(struct kvm_coalesced_mmio_ring)) / \
527 sizeof(struct kvm_coalesced_mmio))
528
529/* for KVM_TRANSLATE */
530struct kvm_translation {
531 /* in */
532 __u64 linear_address;
533
534 /* out */
535 __u64 physical_address;
536 __u8 valid;
537 __u8 writeable;
538 __u8 usermode;
539 __u8 pad[5];
540};
541
542/* for KVM_INTERRUPT */
543struct kvm_interrupt {
544 /* in */
545 __u32 irq;
546};
547
548/* for KVM_GET_DIRTY_LOG */
549struct kvm_dirty_log {
550 __u32 slot;
551 __u32 padding1;
552 union {
553 void __user *dirty_bitmap; /* one bit per page */
554 __u64 padding2;
555 };
556};
557
558/* for KVM_CLEAR_DIRTY_LOG */
559struct kvm_clear_dirty_log {
560 __u32 slot;
561 __u32 num_pages;
562 __u64 first_page;
563 union {
564 void __user *dirty_bitmap; /* one bit per page */
565 __u64 padding2;
566 };
567};
568
569/* for KVM_SET_SIGNAL_MASK */
570struct kvm_signal_mask {
571 __u32 len;
572 __u8 sigset[];
573};
574
575/* for KVM_TPR_ACCESS_REPORTING */
576struct kvm_tpr_access_ctl {
577 __u32 enabled;
578 __u32 flags;
579 __u32 reserved[8];
580};
581
582/* for KVM_SET_VAPIC_ADDR */
583struct kvm_vapic_addr {
584 __u64 vapic_addr;
585};
586
587/* for KVM_SET_MP_STATE */
588
589/* not all states are valid on all architectures */
590#define KVM_MP_STATE_RUNNABLE 0
591#define KVM_MP_STATE_UNINITIALIZED 1
592#define KVM_MP_STATE_INIT_RECEIVED 2
593#define KVM_MP_STATE_HALTED 3
594#define KVM_MP_STATE_SIPI_RECEIVED 4
595#define KVM_MP_STATE_STOPPED 5
596#define KVM_MP_STATE_CHECK_STOP 6
597#define KVM_MP_STATE_OPERATING 7
598#define KVM_MP_STATE_LOAD 8
599#define KVM_MP_STATE_AP_RESET_HOLD 9
600#define KVM_MP_STATE_SUSPENDED 10
601
602struct kvm_mp_state {
603 __u32 mp_state;
604};
605
606/* for KVM_SET_GUEST_DEBUG */
607
608#define KVM_GUESTDBG_ENABLE 0x00000001
609#define KVM_GUESTDBG_SINGLESTEP 0x00000002
610
611struct kvm_guest_debug {
612 __u32 control;
613 __u32 pad;
614 struct kvm_guest_debug_arch arch;
615};
616
617enum {
618 kvm_ioeventfd_flag_nr_datamatch,
619 kvm_ioeventfd_flag_nr_pio,
620 kvm_ioeventfd_flag_nr_deassign,
621 kvm_ioeventfd_flag_nr_virtio_ccw_notify,
622 kvm_ioeventfd_flag_nr_fast_mmio,
623 kvm_ioeventfd_flag_nr_max,
624};
625
626#define KVM_IOEVENTFD_FLAG_DATAMATCH (1 << kvm_ioeventfd_flag_nr_datamatch)
627#define KVM_IOEVENTFD_FLAG_PIO (1 << kvm_ioeventfd_flag_nr_pio)
628#define KVM_IOEVENTFD_FLAG_DEASSIGN (1 << kvm_ioeventfd_flag_nr_deassign)
629#define KVM_IOEVENTFD_FLAG_VIRTIO_CCW_NOTIFY \
630 (1 << kvm_ioeventfd_flag_nr_virtio_ccw_notify)
631
632#define KVM_IOEVENTFD_VALID_FLAG_MASK ((1 << kvm_ioeventfd_flag_nr_max) - 1)
633
634struct kvm_ioeventfd {
635 __u64 datamatch;
636 __u64 addr; /* legal pio/mmio address */
637 __u32 len; /* 1, 2, 4, or 8 bytes; or 0 to ignore length */
638 __s32 fd;
639 __u32 flags;
640 __u8 pad[36];
641};
642
643#define KVM_X86_DISABLE_EXITS_MWAIT (1 << 0)
644#define KVM_X86_DISABLE_EXITS_HLT (1 << 1)
645#define KVM_X86_DISABLE_EXITS_PAUSE (1 << 2)
646#define KVM_X86_DISABLE_EXITS_CSTATE (1 << 3)
647
648/* for KVM_ENABLE_CAP */
649struct kvm_enable_cap {
650 /* in */
651 __u32 cap;
652 __u32 flags;
653 __u64 args[4];
654 __u8 pad[64];
655};
656
657#define KVMIO 0xAE
658
659/* machine type bits, to be used as argument to KVM_CREATE_VM */
660#define KVM_VM_S390_UCONTROL 1
661
662/* on ppc, 0 indicate default, 1 should force HV and 2 PR */
663#define KVM_VM_PPC_HV 1
664#define KVM_VM_PPC_PR 2
665
666/* on MIPS, 0 indicates auto, 1 forces VZ ASE, 2 forces trap & emulate */
667#define KVM_VM_MIPS_AUTO 0
668#define KVM_VM_MIPS_VZ 1
669#define KVM_VM_MIPS_TE 2
670
671#define KVM_S390_SIE_PAGE_OFFSET 1
672
673/*
674 * On arm64, machine type can be used to request the physical
675 * address size for the VM. Bits[7-0] are reserved for the guest
676 * PA size shift (i.e, log2(PA_Size)). For backward compatibility,
677 * value 0 implies the default IPA size, 40bits.
678 */
679#define KVM_VM_TYPE_ARM_IPA_SIZE_MASK 0xffULL
680#define KVM_VM_TYPE_ARM_IPA_SIZE(x) \
681 ((x) & KVM_VM_TYPE_ARM_IPA_SIZE_MASK)
682/*
683 * ioctls for /dev/kvm fds:
684 */
685#define KVM_GET_API_VERSION _IO(KVMIO, 0x00)
686#define KVM_CREATE_VM _IO(KVMIO, 0x01) /* returns a VM fd */
687#define KVM_GET_MSR_INDEX_LIST _IOWR(KVMIO, 0x02, struct kvm_msr_list)
688
689#define KVM_S390_ENABLE_SIE _IO(KVMIO, 0x06)
690/*
691 * Check if a kvm extension is available. Argument is extension number,
692 * return is 1 (yes) or 0 (no, sorry).
693 */
694#define KVM_CHECK_EXTENSION _IO(KVMIO, 0x03)
695/*
696 * Get size for mmap(vcpu_fd)
697 */
698#define KVM_GET_VCPU_MMAP_SIZE _IO(KVMIO, 0x04) /* in bytes */
699#define KVM_GET_SUPPORTED_CPUID _IOWR(KVMIO, 0x05, struct kvm_cpuid2)
700#define KVM_GET_EMULATED_CPUID _IOWR(KVMIO, 0x09, struct kvm_cpuid2)
701#define KVM_GET_MSR_FEATURE_INDEX_LIST _IOWR(KVMIO, 0x0a, struct kvm_msr_list)
702
703/*
704 * Extension capability list.
705 */
706#define KVM_CAP_IRQCHIP 0
707#define KVM_CAP_HLT 1
708#define KVM_CAP_MMU_SHADOW_CACHE_CONTROL 2
709#define KVM_CAP_USER_MEMORY 3
710#define KVM_CAP_SET_TSS_ADDR 4
711#define KVM_CAP_VAPIC 6
712#define KVM_CAP_EXT_CPUID 7
713#define KVM_CAP_CLOCKSOURCE 8
714#define KVM_CAP_NR_VCPUS 9 /* returns recommended max vcpus per vm */
715#define KVM_CAP_NR_MEMSLOTS 10 /* returns max memory slots per vm */
716#define KVM_CAP_PIT 11
717#define KVM_CAP_NOP_IO_DELAY 12
718#define KVM_CAP_PV_MMU 13
719#define KVM_CAP_MP_STATE 14
720#define KVM_CAP_COALESCED_MMIO 15
721#define KVM_CAP_SYNC_MMU 16 /* Changes to host mmap are reflected in guest */
722#define KVM_CAP_IOMMU 18
723/* Bug in KVM_SET_USER_MEMORY_REGION fixed: */
724#define KVM_CAP_DESTROY_MEMORY_REGION_WORKS 21
725#define KVM_CAP_USER_NMI 22
726#define KVM_CAP_SET_GUEST_DEBUG 23
727#ifdef __KVM_HAVE_PIT
728#define KVM_CAP_REINJECT_CONTROL 24
729#endif
730#define KVM_CAP_IRQ_ROUTING 25
731#define KVM_CAP_IRQ_INJECT_STATUS 26
732#define KVM_CAP_ASSIGN_DEV_IRQ 29
733/* Another bug in KVM_SET_USER_MEMORY_REGION fixed: */
734#define KVM_CAP_JOIN_MEMORY_REGIONS_WORKS 30
735#ifdef __KVM_HAVE_MCE
736#define KVM_CAP_MCE 31
737#endif
738#define KVM_CAP_IRQFD 32
739#ifdef __KVM_HAVE_PIT
740#define KVM_CAP_PIT2 33
741#endif
742#define KVM_CAP_SET_BOOT_CPU_ID 34
743#ifdef __KVM_HAVE_PIT_STATE2
744#define KVM_CAP_PIT_STATE2 35
745#endif
746#define KVM_CAP_IOEVENTFD 36
747#define KVM_CAP_SET_IDENTITY_MAP_ADDR 37
748#ifdef __KVM_HAVE_XEN_HVM
749#define KVM_CAP_XEN_HVM 38
750#endif
751#define KVM_CAP_ADJUST_CLOCK 39
752#define KVM_CAP_INTERNAL_ERROR_DATA 40
753#ifdef __KVM_HAVE_VCPU_EVENTS
754#define KVM_CAP_VCPU_EVENTS 41
755#endif
756#define KVM_CAP_S390_PSW 42
757#define KVM_CAP_PPC_SEGSTATE 43
758#define KVM_CAP_HYPERV 44
759#define KVM_CAP_HYPERV_VAPIC 45
760#define KVM_CAP_HYPERV_SPIN 46
761#define KVM_CAP_PCI_SEGMENT 47
762#define KVM_CAP_PPC_PAIRED_SINGLES 48
763#define KVM_CAP_INTR_SHADOW 49
764#ifdef __KVM_HAVE_DEBUGREGS
765#define KVM_CAP_DEBUGREGS 50
766#endif
767#define KVM_CAP_X86_ROBUST_SINGLESTEP 51
768#define KVM_CAP_PPC_OSI 52
769#define KVM_CAP_PPC_UNSET_IRQ 53
770#define KVM_CAP_ENABLE_CAP 54
771#ifdef __KVM_HAVE_XSAVE
772#define KVM_CAP_XSAVE 55
773#endif
774#ifdef __KVM_HAVE_XCRS
775#define KVM_CAP_XCRS 56
776#endif
777#define KVM_CAP_PPC_GET_PVINFO 57
778#define KVM_CAP_PPC_IRQ_LEVEL 58
779#define KVM_CAP_ASYNC_PF 59
780#define KVM_CAP_TSC_CONTROL 60
781#define KVM_CAP_GET_TSC_KHZ 61
782#define KVM_CAP_PPC_BOOKE_SREGS 62
783#define KVM_CAP_SPAPR_TCE 63
784#define KVM_CAP_PPC_SMT 64
785#define KVM_CAP_PPC_RMA 65
786#define KVM_CAP_MAX_VCPUS 66 /* returns max vcpus per vm */
787#define KVM_CAP_PPC_HIOR 67
788#define KVM_CAP_PPC_PAPR 68
789#define KVM_CAP_SW_TLB 69
790#define KVM_CAP_ONE_REG 70
791#define KVM_CAP_S390_GMAP 71
792#define KVM_CAP_TSC_DEADLINE_TIMER 72
793#define KVM_CAP_S390_UCONTROL 73
794#define KVM_CAP_SYNC_REGS 74
795#define KVM_CAP_PCI_2_3 75
796#define KVM_CAP_KVMCLOCK_CTRL 76
797#define KVM_CAP_SIGNAL_MSI 77
798#define KVM_CAP_PPC_GET_SMMU_INFO 78
799#define KVM_CAP_S390_COW 79
800#define KVM_CAP_PPC_ALLOC_HTAB 80
801#define KVM_CAP_READONLY_MEM 81
802#define KVM_CAP_IRQFD_RESAMPLE 82
803#define KVM_CAP_PPC_BOOKE_WATCHDOG 83
804#define KVM_CAP_PPC_HTAB_FD 84
805#define KVM_CAP_S390_CSS_SUPPORT 85
806#define KVM_CAP_PPC_EPR 86
807#define KVM_CAP_ARM_PSCI 87
808#define KVM_CAP_ARM_SET_DEVICE_ADDR 88
809#define KVM_CAP_DEVICE_CTRL 89
810#define KVM_CAP_IRQ_MPIC 90
811#define KVM_CAP_PPC_RTAS 91
812#define KVM_CAP_IRQ_XICS 92
813#define KVM_CAP_ARM_EL1_32BIT 93
814#define KVM_CAP_SPAPR_MULTITCE 94
815#define KVM_CAP_EXT_EMUL_CPUID 95
816#define KVM_CAP_HYPERV_TIME 96
817#define KVM_CAP_IOAPIC_POLARITY_IGNORED 97
818#define KVM_CAP_ENABLE_CAP_VM 98
819#define KVM_CAP_S390_IRQCHIP 99
820#define KVM_CAP_IOEVENTFD_NO_LENGTH 100
821#define KVM_CAP_VM_ATTRIBUTES 101
822#define KVM_CAP_ARM_PSCI_0_2 102
823#define KVM_CAP_PPC_FIXUP_HCALL 103
824#define KVM_CAP_PPC_ENABLE_HCALL 104
825#define KVM_CAP_CHECK_EXTENSION_VM 105
826#define KVM_CAP_S390_USER_SIGP 106
827#define KVM_CAP_S390_VECTOR_REGISTERS 107
828#define KVM_CAP_S390_MEM_OP 108
829#define KVM_CAP_S390_USER_STSI 109
830#define KVM_CAP_S390_SKEYS 110
831#define KVM_CAP_MIPS_FPU 111
832#define KVM_CAP_MIPS_MSA 112
833#define KVM_CAP_S390_INJECT_IRQ 113
834#define KVM_CAP_S390_IRQ_STATE 114
835#define KVM_CAP_PPC_HWRNG 115
836#define KVM_CAP_DISABLE_QUIRKS 116
837#define KVM_CAP_X86_SMM 117
838#define KVM_CAP_MULTI_ADDRESS_SPACE 118
839#define KVM_CAP_GUEST_DEBUG_HW_BPS 119
840#define KVM_CAP_GUEST_DEBUG_HW_WPS 120
841#define KVM_CAP_SPLIT_IRQCHIP 121
842#define KVM_CAP_IOEVENTFD_ANY_LENGTH 122
843#define KVM_CAP_HYPERV_SYNIC 123
844#define KVM_CAP_S390_RI 124
845#define KVM_CAP_SPAPR_TCE_64 125
846#define KVM_CAP_ARM_PMU_V3 126
847#define KVM_CAP_VCPU_ATTRIBUTES 127
848#define KVM_CAP_MAX_VCPU_ID 128
849#define KVM_CAP_X2APIC_API 129
850#define KVM_CAP_S390_USER_INSTR0 130
851#define KVM_CAP_MSI_DEVID 131
852#define KVM_CAP_PPC_HTM 132
853#define KVM_CAP_SPAPR_RESIZE_HPT 133
854#define KVM_CAP_PPC_MMU_RADIX 134
855#define KVM_CAP_PPC_MMU_HASH_V3 135
856#define KVM_CAP_IMMEDIATE_EXIT 136
857#define KVM_CAP_MIPS_VZ 137
858#define KVM_CAP_MIPS_TE 138
859#define KVM_CAP_MIPS_64BIT 139
860#define KVM_CAP_S390_GS 140
861#define KVM_CAP_S390_AIS 141
862#define KVM_CAP_SPAPR_TCE_VFIO 142
863#define KVM_CAP_X86_DISABLE_EXITS 143
864#define KVM_CAP_ARM_USER_IRQ 144
865#define KVM_CAP_S390_CMMA_MIGRATION 145
866#define KVM_CAP_PPC_FWNMI 146
867#define KVM_CAP_PPC_SMT_POSSIBLE 147
868#define KVM_CAP_HYPERV_SYNIC2 148
869#define KVM_CAP_HYPERV_VP_INDEX 149
870#define KVM_CAP_S390_AIS_MIGRATION 150
871#define KVM_CAP_PPC_GET_CPU_CHAR 151
872#define KVM_CAP_S390_BPB 152
873#define KVM_CAP_GET_MSR_FEATURES 153
874#define KVM_CAP_HYPERV_EVENTFD 154
875#define KVM_CAP_HYPERV_TLBFLUSH 155
876#define KVM_CAP_S390_HPAGE_1M 156
877#define KVM_CAP_NESTED_STATE 157
878#define KVM_CAP_ARM_INJECT_SERROR_ESR 158
879#define KVM_CAP_MSR_PLATFORM_INFO 159
880#define KVM_CAP_PPC_NESTED_HV 160
881#define KVM_CAP_HYPERV_SEND_IPI 161
882#define KVM_CAP_COALESCED_PIO 162
883#define KVM_CAP_HYPERV_ENLIGHTENED_VMCS 163
884#define KVM_CAP_EXCEPTION_PAYLOAD 164
885#define KVM_CAP_ARM_VM_IPA_SIZE 165
886#define KVM_CAP_MANUAL_DIRTY_LOG_PROTECT 166 /* Obsolete */
887#define KVM_CAP_HYPERV_CPUID 167
888#define KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2 168
889#define KVM_CAP_PPC_IRQ_XIVE 169
890#define KVM_CAP_ARM_SVE 170
891#define KVM_CAP_ARM_PTRAUTH_ADDRESS 171
892#define KVM_CAP_ARM_PTRAUTH_GENERIC 172
893#define KVM_CAP_PMU_EVENT_FILTER 173
894#define KVM_CAP_ARM_IRQ_LINE_LAYOUT_2 174
895#define KVM_CAP_HYPERV_DIRECT_TLBFLUSH 175
896#define KVM_CAP_PPC_GUEST_DEBUG_SSTEP 176
897#define KVM_CAP_ARM_NISV_TO_USER 177
898#define KVM_CAP_ARM_INJECT_EXT_DABT 178
899#define KVM_CAP_S390_VCPU_RESETS 179
900#define KVM_CAP_S390_PROTECTED 180
901#define KVM_CAP_PPC_SECURE_GUEST 181
902#define KVM_CAP_HALT_POLL 182
903#define KVM_CAP_ASYNC_PF_INT 183
904#define KVM_CAP_LAST_CPU 184
905#define KVM_CAP_SMALLER_MAXPHYADDR 185
906#define KVM_CAP_S390_DIAG318 186
907#define KVM_CAP_STEAL_TIME 187
908#define KVM_CAP_X86_USER_SPACE_MSR 188
909#define KVM_CAP_X86_MSR_FILTER 189
910#define KVM_CAP_ENFORCE_PV_FEATURE_CPUID 190
911#define KVM_CAP_SYS_HYPERV_CPUID 191
912#define KVM_CAP_DIRTY_LOG_RING 192
913#define KVM_CAP_X86_BUS_LOCK_EXIT 193
914#define KVM_CAP_PPC_DAWR1 194
915#define KVM_CAP_SET_GUEST_DEBUG2 195
916#define KVM_CAP_SGX_ATTRIBUTE 196
917#define KVM_CAP_VM_COPY_ENC_CONTEXT_FROM 197
918#define KVM_CAP_PTP_KVM 198
919#define KVM_CAP_HYPERV_ENFORCE_CPUID 199
920#define KVM_CAP_SREGS2 200
921#define KVM_CAP_EXIT_HYPERCALL 201
922#define KVM_CAP_PPC_RPT_INVALIDATE 202
923#define KVM_CAP_BINARY_STATS_FD 203
924#define KVM_CAP_EXIT_ON_EMULATION_FAILURE 204
925#define KVM_CAP_ARM_MTE 205
926#define KVM_CAP_VM_MOVE_ENC_CONTEXT_FROM 206
927#define KVM_CAP_VM_GPA_BITS 207
928#define KVM_CAP_XSAVE2 208
929#define KVM_CAP_SYS_ATTRIBUTES 209
930#define KVM_CAP_PPC_AIL_MODE_3 210
931#define KVM_CAP_S390_MEM_OP_EXTENSION 211
932#define KVM_CAP_PMU_CAPABILITY 212
933#define KVM_CAP_DISABLE_QUIRKS2 213
934#define KVM_CAP_VM_TSC_CONTROL 214
935#define KVM_CAP_SYSTEM_EVENT_DATA 215
936#define KVM_CAP_ARM_SYSTEM_SUSPEND 216
937#define KVM_CAP_S390_PROTECTED_DUMP 217
938#define KVM_CAP_X86_TRIPLE_FAULT_EVENT 218
939#define KVM_CAP_X86_NOTIFY_VMEXIT 219
940#define KVM_CAP_VM_DISABLE_NX_HUGE_PAGES 220
941#define KVM_CAP_S390_ZPCI_OP 221
942#define KVM_CAP_S390_CPU_TOPOLOGY 222
943#define KVM_CAP_DIRTY_LOG_RING_ACQ_REL 223
944#define KVM_CAP_S390_PROTECTED_ASYNC_DISABLE 224
945#define KVM_CAP_DIRTY_LOG_RING_WITH_BITMAP 225
946#define KVM_CAP_PMU_EVENT_MASKED_EVENTS 226
947#define KVM_CAP_COUNTER_OFFSET 227
948#define KVM_CAP_ARM_EAGER_SPLIT_CHUNK_SIZE 228
949#define KVM_CAP_ARM_SUPPORTED_BLOCK_SIZES 229
950#define KVM_CAP_ARM_SUPPORTED_REG_MASK_RANGES 230
951#define KVM_CAP_USER_MEMORY2 231
952#define KVM_CAP_MEMORY_FAULT_INFO 232
953#define KVM_CAP_MEMORY_ATTRIBUTES 233
954#define KVM_CAP_GUEST_MEMFD 234
955#define KVM_CAP_VM_TYPES 235
956#define KVM_CAP_PRE_FAULT_MEMORY 236
957#define KVM_CAP_X86_APIC_BUS_CYCLES_NS 237
958#define KVM_CAP_X86_GUEST_MODE 238
959#define KVM_CAP_ARM_WRITABLE_IMP_ID_REGS 239
960#define KVM_CAP_ARM_EL2 240
961#define KVM_CAP_ARM_EL2_E2H0 241
962#define KVM_CAP_RISCV_MP_STATE_RESET 242
963
964struct kvm_irq_routing_irqchip {
965 __u32 irqchip;
966 __u32 pin;
967};
968
969struct kvm_irq_routing_msi {
970 __u32 address_lo;
971 __u32 address_hi;
972 __u32 data;
973 union {
974 __u32 pad;
975 __u32 devid;
976 };
977};
978
979struct kvm_irq_routing_s390_adapter {
980 __u64 ind_addr;
981 __u64 summary_addr;
982 __u64 ind_offset;
983 __u32 summary_offset;
984 __u32 adapter_id;
985};
986
987struct kvm_irq_routing_hv_sint {
988 __u32 vcpu;
989 __u32 sint;
990};
991
992struct kvm_irq_routing_xen_evtchn {
993 __u32 port;
994 __u32 vcpu;
995 __u32 priority;
996};
997
998#define KVM_IRQ_ROUTING_XEN_EVTCHN_PRIO_2LEVEL ((__u32)(-1))
999
1000/* gsi routing entry types */
1001#define KVM_IRQ_ROUTING_IRQCHIP 1
1002#define KVM_IRQ_ROUTING_MSI 2
1003#define KVM_IRQ_ROUTING_S390_ADAPTER 3
1004#define KVM_IRQ_ROUTING_HV_SINT 4
1005#define KVM_IRQ_ROUTING_XEN_EVTCHN 5
1006
1007struct kvm_irq_routing_entry {
1008 __u32 gsi;
1009 __u32 type;
1010 __u32 flags;
1011 __u32 pad;
1012 union {
1013 struct kvm_irq_routing_irqchip irqchip;
1014 struct kvm_irq_routing_msi msi;
1015 struct kvm_irq_routing_s390_adapter adapter;
1016 struct kvm_irq_routing_hv_sint hv_sint;
1017 struct kvm_irq_routing_xen_evtchn xen_evtchn;
1018 __u32 pad[8];
1019 } u;
1020};
1021
1022struct kvm_irq_routing {
1023 __u32 nr;
1024 __u32 flags;
1025 struct kvm_irq_routing_entry entries[];
1026};
1027
1028#define KVM_IRQFD_FLAG_DEASSIGN (1 << 0)
1029/*
1030 * Available with KVM_CAP_IRQFD_RESAMPLE
1031 *
1032 * KVM_IRQFD_FLAG_RESAMPLE indicates resamplefd is valid and specifies
1033 * the irqfd to operate in resampling mode for level triggered interrupt
1034 * emulation. See Documentation/virt/kvm/api.rst.
1035 */
1036#define KVM_IRQFD_FLAG_RESAMPLE (1 << 1)
1037
1038struct kvm_irqfd {
1039 __u32 fd;
1040 __u32 gsi;
1041 __u32 flags;
1042 __u32 resamplefd;
1043 __u8 pad[16];
1044};
1045
1046/* For KVM_CAP_ADJUST_CLOCK */
1047
1048/* Do not use 1, KVM_CHECK_EXTENSION returned it before we had flags. */
1049#define KVM_CLOCK_TSC_STABLE 2
1050#define KVM_CLOCK_REALTIME (1 << 2)
1051#define KVM_CLOCK_HOST_TSC (1 << 3)
1052
1053struct kvm_clock_data {
1054 __u64 clock;
1055 __u32 flags;
1056 __u32 pad0;
1057 __u64 realtime;
1058 __u64 host_tsc;
1059 __u32 pad[4];
1060};
1061
1062/* For KVM_CAP_SW_TLB */
1063
1064#define KVM_MMU_FSL_BOOKE_NOHV 0
1065#define KVM_MMU_FSL_BOOKE_HV 1
1066
1067struct kvm_config_tlb {
1068 __u64 params;
1069 __u64 array;
1070 __u32 mmu_type;
1071 __u32 array_len;
1072};
1073
1074struct kvm_dirty_tlb {
1075 __u64 bitmap;
1076 __u32 num_dirty;
1077};
1078
1079/* Available with KVM_CAP_ONE_REG */
1080
1081#define KVM_REG_ARCH_MASK 0xff00000000000000ULL
1082#define KVM_REG_GENERIC 0x0000000000000000ULL
1083
1084/*
1085 * Architecture specific registers are to be defined in arch headers and
1086 * ORed with the arch identifier.
1087 */
1088#define KVM_REG_PPC 0x1000000000000000ULL
1089#define KVM_REG_X86 0x2000000000000000ULL
1090#define KVM_REG_IA64 0x3000000000000000ULL
1091#define KVM_REG_ARM 0x4000000000000000ULL
1092#define KVM_REG_S390 0x5000000000000000ULL
1093#define KVM_REG_ARM64 0x6000000000000000ULL
1094#define KVM_REG_MIPS 0x7000000000000000ULL
1095#define KVM_REG_RISCV 0x8000000000000000ULL
1096#define KVM_REG_LOONGARCH 0x9000000000000000ULL
1097
1098#define KVM_REG_SIZE_SHIFT 52
1099#define KVM_REG_SIZE_MASK 0x00f0000000000000ULL
1100
1101#define KVM_REG_SIZE(id) \
1102 (1U << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
1103
1104#define KVM_REG_SIZE_U8 0x0000000000000000ULL
1105#define KVM_REG_SIZE_U16 0x0010000000000000ULL
1106#define KVM_REG_SIZE_U32 0x0020000000000000ULL
1107#define KVM_REG_SIZE_U64 0x0030000000000000ULL
1108#define KVM_REG_SIZE_U128 0x0040000000000000ULL
1109#define KVM_REG_SIZE_U256 0x0050000000000000ULL
1110#define KVM_REG_SIZE_U512 0x0060000000000000ULL
1111#define KVM_REG_SIZE_U1024 0x0070000000000000ULL
1112#define KVM_REG_SIZE_U2048 0x0080000000000000ULL
1113
1114struct kvm_reg_list {
1115 __u64 n; /* number of regs */
1116 __u64 reg[];
1117};
1118
1119struct kvm_one_reg {
1120 __u64 id;
1121 __u64 addr;
1122};
1123
1124#define KVM_MSI_VALID_DEVID (1U << 0)
1125struct kvm_msi {
1126 __u32 address_lo;
1127 __u32 address_hi;
1128 __u32 data;
1129 __u32 flags;
1130 __u32 devid;
1131 __u8 pad[12];
1132};
1133
1134struct kvm_arm_device_addr {
1135 __u64 id;
1136 __u64 addr;
1137};
1138
1139/*
1140 * Device control API, available with KVM_CAP_DEVICE_CTRL
1141 */
1142#define KVM_CREATE_DEVICE_TEST 1
1143
1144struct kvm_create_device {
1145 __u32 type; /* in: KVM_DEV_TYPE_xxx */
1146 __u32 fd; /* out: device handle */
1147 __u32 flags; /* in: KVM_CREATE_DEVICE_xxx */
1148};
1149
1150struct kvm_device_attr {
1151 __u32 flags; /* no flags currently defined */
1152 __u32 group; /* device-defined */
1153 __u64 attr; /* group-defined */
1154 __u64 addr; /* userspace address of attr data */
1155};
1156
1157#define KVM_DEV_VFIO_FILE 1
1158
1159#define KVM_DEV_VFIO_FILE_ADD 1
1160#define KVM_DEV_VFIO_FILE_DEL 2
1161
1162/* KVM_DEV_VFIO_GROUP aliases are for compile time uapi compatibility */
1163#define KVM_DEV_VFIO_GROUP KVM_DEV_VFIO_FILE
1164
1165#define KVM_DEV_VFIO_GROUP_ADD KVM_DEV_VFIO_FILE_ADD
1166#define KVM_DEV_VFIO_GROUP_DEL KVM_DEV_VFIO_FILE_DEL
1167#define KVM_DEV_VFIO_GROUP_SET_SPAPR_TCE 3
1168
1169enum kvm_device_type {
1170 KVM_DEV_TYPE_FSL_MPIC_20 = 1,
1171#define KVM_DEV_TYPE_FSL_MPIC_20 KVM_DEV_TYPE_FSL_MPIC_20
1172 KVM_DEV_TYPE_FSL_MPIC_42,
1173#define KVM_DEV_TYPE_FSL_MPIC_42 KVM_DEV_TYPE_FSL_MPIC_42
1174 KVM_DEV_TYPE_XICS,
1175#define KVM_DEV_TYPE_XICS KVM_DEV_TYPE_XICS
1176 KVM_DEV_TYPE_VFIO,
1177#define KVM_DEV_TYPE_VFIO KVM_DEV_TYPE_VFIO
1178 KVM_DEV_TYPE_ARM_VGIC_V2,
1179#define KVM_DEV_TYPE_ARM_VGIC_V2 KVM_DEV_TYPE_ARM_VGIC_V2
1180 KVM_DEV_TYPE_FLIC,
1181#define KVM_DEV_TYPE_FLIC KVM_DEV_TYPE_FLIC
1182 KVM_DEV_TYPE_ARM_VGIC_V3,
1183#define KVM_DEV_TYPE_ARM_VGIC_V3 KVM_DEV_TYPE_ARM_VGIC_V3
1184 KVM_DEV_TYPE_ARM_VGIC_ITS,
1185#define KVM_DEV_TYPE_ARM_VGIC_ITS KVM_DEV_TYPE_ARM_VGIC_ITS
1186 KVM_DEV_TYPE_XIVE,
1187#define KVM_DEV_TYPE_XIVE KVM_DEV_TYPE_XIVE
1188 KVM_DEV_TYPE_ARM_PV_TIME,
1189#define KVM_DEV_TYPE_ARM_PV_TIME KVM_DEV_TYPE_ARM_PV_TIME
1190 KVM_DEV_TYPE_RISCV_AIA,
1191#define KVM_DEV_TYPE_RISCV_AIA KVM_DEV_TYPE_RISCV_AIA
1192 KVM_DEV_TYPE_LOONGARCH_IPI,
1193#define KVM_DEV_TYPE_LOONGARCH_IPI KVM_DEV_TYPE_LOONGARCH_IPI
1194 KVM_DEV_TYPE_LOONGARCH_EIOINTC,
1195#define KVM_DEV_TYPE_LOONGARCH_EIOINTC KVM_DEV_TYPE_LOONGARCH_EIOINTC
1196 KVM_DEV_TYPE_LOONGARCH_PCHPIC,
1197#define KVM_DEV_TYPE_LOONGARCH_PCHPIC KVM_DEV_TYPE_LOONGARCH_PCHPIC
1198
1199 KVM_DEV_TYPE_MAX,
1200
1201};
1202
1203struct kvm_vfio_spapr_tce {
1204 __s32 groupfd;
1205 __s32 tablefd;
1206};
1207
1208/*
1209 * KVM_CREATE_VCPU receives as a parameter the vcpu slot, and returns
1210 * a vcpu fd.
1211 */
1212#define KVM_CREATE_VCPU _IO(KVMIO, 0x41)
1213#define KVM_GET_DIRTY_LOG _IOW(KVMIO, 0x42, struct kvm_dirty_log)
1214#define KVM_SET_NR_MMU_PAGES _IO(KVMIO, 0x44)
1215#define KVM_GET_NR_MMU_PAGES _IO(KVMIO, 0x45) /* deprecated */
1216#define KVM_SET_USER_MEMORY_REGION _IOW(KVMIO, 0x46, \
1217 struct kvm_userspace_memory_region)
1218#define KVM_SET_TSS_ADDR _IO(KVMIO, 0x47)
1219#define KVM_SET_IDENTITY_MAP_ADDR _IOW(KVMIO, 0x48, __u64)
1220#define KVM_SET_USER_MEMORY_REGION2 _IOW(KVMIO, 0x49, \
1221 struct kvm_userspace_memory_region2)
1222
1223/* enable ucontrol for s390 */
1224#define KVM_S390_UCAS_MAP _IOW(KVMIO, 0x50, struct kvm_s390_ucas_mapping)
1225#define KVM_S390_UCAS_UNMAP _IOW(KVMIO, 0x51, struct kvm_s390_ucas_mapping)
1226#define KVM_S390_VCPU_FAULT _IOW(KVMIO, 0x52, unsigned long)
1227
1228/* Device model IOC */
1229#define KVM_CREATE_IRQCHIP _IO(KVMIO, 0x60)
1230#define KVM_IRQ_LINE _IOW(KVMIO, 0x61, struct kvm_irq_level)
1231#define KVM_GET_IRQCHIP _IOWR(KVMIO, 0x62, struct kvm_irqchip)
1232#define KVM_SET_IRQCHIP _IOR(KVMIO, 0x63, struct kvm_irqchip)
1233#define KVM_CREATE_PIT _IO(KVMIO, 0x64)
1234#define KVM_GET_PIT _IOWR(KVMIO, 0x65, struct kvm_pit_state)
1235#define KVM_SET_PIT _IOR(KVMIO, 0x66, struct kvm_pit_state)
1236#define KVM_IRQ_LINE_STATUS _IOWR(KVMIO, 0x67, struct kvm_irq_level)
1237#define KVM_REGISTER_COALESCED_MMIO \
1238 _IOW(KVMIO, 0x67, struct kvm_coalesced_mmio_zone)
1239#define KVM_UNREGISTER_COALESCED_MMIO \
1240 _IOW(KVMIO, 0x68, struct kvm_coalesced_mmio_zone)
1241#define KVM_SET_GSI_ROUTING _IOW(KVMIO, 0x6a, struct kvm_irq_routing)
1242#define KVM_REINJECT_CONTROL _IO(KVMIO, 0x71)
1243#define KVM_IRQFD _IOW(KVMIO, 0x76, struct kvm_irqfd)
1244#define KVM_CREATE_PIT2 _IOW(KVMIO, 0x77, struct kvm_pit_config)
1245#define KVM_SET_BOOT_CPU_ID _IO(KVMIO, 0x78)
1246#define KVM_IOEVENTFD _IOW(KVMIO, 0x79, struct kvm_ioeventfd)
1247#define KVM_XEN_HVM_CONFIG _IOW(KVMIO, 0x7a, struct kvm_xen_hvm_config)
1248#define KVM_SET_CLOCK _IOW(KVMIO, 0x7b, struct kvm_clock_data)
1249#define KVM_GET_CLOCK _IOR(KVMIO, 0x7c, struct kvm_clock_data)
1250/* Available with KVM_CAP_PIT_STATE2 */
1251#define KVM_GET_PIT2 _IOR(KVMIO, 0x9f, struct kvm_pit_state2)
1252#define KVM_SET_PIT2 _IOW(KVMIO, 0xa0, struct kvm_pit_state2)
1253/* Available with KVM_CAP_PPC_GET_PVINFO */
1254#define KVM_PPC_GET_PVINFO _IOW(KVMIO, 0xa1, struct kvm_ppc_pvinfo)
1255/* Available with KVM_CAP_TSC_CONTROL for a vCPU, or with
1256* KVM_CAP_VM_TSC_CONTROL to set defaults for a VM */
1257#define KVM_SET_TSC_KHZ _IO(KVMIO, 0xa2)
1258#define KVM_GET_TSC_KHZ _IO(KVMIO, 0xa3)
1259/* Available with KVM_CAP_SIGNAL_MSI */
1260#define KVM_SIGNAL_MSI _IOW(KVMIO, 0xa5, struct kvm_msi)
1261/* Available with KVM_CAP_PPC_GET_SMMU_INFO */
1262#define KVM_PPC_GET_SMMU_INFO _IOR(KVMIO, 0xa6, struct kvm_ppc_smmu_info)
1263/* Available with KVM_CAP_PPC_ALLOC_HTAB */
1264#define KVM_PPC_ALLOCATE_HTAB _IOWR(KVMIO, 0xa7, __u32)
1265#define KVM_CREATE_SPAPR_TCE _IOW(KVMIO, 0xa8, struct kvm_create_spapr_tce)
1266#define KVM_CREATE_SPAPR_TCE_64 _IOW(KVMIO, 0xa8, \
1267 struct kvm_create_spapr_tce_64)
1268/* Available with KVM_CAP_RMA */
1269#define KVM_ALLOCATE_RMA _IOR(KVMIO, 0xa9, struct kvm_allocate_rma)
1270/* Available with KVM_CAP_PPC_HTAB_FD */
1271#define KVM_PPC_GET_HTAB_FD _IOW(KVMIO, 0xaa, struct kvm_get_htab_fd)
1272/* Available with KVM_CAP_ARM_SET_DEVICE_ADDR */
1273#define KVM_ARM_SET_DEVICE_ADDR _IOW(KVMIO, 0xab, struct kvm_arm_device_addr)
1274/* Available with KVM_CAP_PPC_RTAS */
1275#define KVM_PPC_RTAS_DEFINE_TOKEN _IOW(KVMIO, 0xac, struct kvm_rtas_token_args)
1276/* Available with KVM_CAP_SPAPR_RESIZE_HPT */
1277#define KVM_PPC_RESIZE_HPT_PREPARE _IOR(KVMIO, 0xad, struct kvm_ppc_resize_hpt)
1278#define KVM_PPC_RESIZE_HPT_COMMIT _IOR(KVMIO, 0xae, struct kvm_ppc_resize_hpt)
1279/* Available with KVM_CAP_PPC_MMU_RADIX or KVM_CAP_PPC_MMU_HASH_V3 */
1280#define KVM_PPC_CONFIGURE_V3_MMU _IOW(KVMIO, 0xaf, struct kvm_ppc_mmuv3_cfg)
1281/* Available with KVM_CAP_PPC_MMU_RADIX */
1282#define KVM_PPC_GET_RMMU_INFO _IOW(KVMIO, 0xb0, struct kvm_ppc_rmmu_info)
1283/* Available with KVM_CAP_PPC_GET_CPU_CHAR */
1284#define KVM_PPC_GET_CPU_CHAR _IOR(KVMIO, 0xb1, struct kvm_ppc_cpu_char)
1285/* Available with KVM_CAP_PMU_EVENT_FILTER */
1286#define KVM_SET_PMU_EVENT_FILTER _IOW(KVMIO, 0xb2, struct kvm_pmu_event_filter)
1287#define KVM_PPC_SVM_OFF _IO(KVMIO, 0xb3)
1288#define KVM_ARM_MTE_COPY_TAGS _IOR(KVMIO, 0xb4, struct kvm_arm_copy_mte_tags)
1289/* Available with KVM_CAP_COUNTER_OFFSET */
1290#define KVM_ARM_SET_COUNTER_OFFSET _IOW(KVMIO, 0xb5, struct kvm_arm_counter_offset)
1291#define KVM_ARM_GET_REG_WRITABLE_MASKS _IOR(KVMIO, 0xb6, struct reg_mask_range)
1292
1293/* ioctl for vm fd */
1294#define KVM_CREATE_DEVICE _IOWR(KVMIO, 0xe0, struct kvm_create_device)
1295
1296/* ioctls for fds returned by KVM_CREATE_DEVICE */
1297#define KVM_SET_DEVICE_ATTR _IOW(KVMIO, 0xe1, struct kvm_device_attr)
1298#define KVM_GET_DEVICE_ATTR _IOW(KVMIO, 0xe2, struct kvm_device_attr)
1299#define KVM_HAS_DEVICE_ATTR _IOW(KVMIO, 0xe3, struct kvm_device_attr)
1300
1301/*
1302 * ioctls for vcpu fds
1303 */
1304#define KVM_RUN _IO(KVMIO, 0x80)
1305#define KVM_GET_REGS _IOR(KVMIO, 0x81, struct kvm_regs)
1306#define KVM_SET_REGS _IOW(KVMIO, 0x82, struct kvm_regs)
1307#define KVM_GET_SREGS _IOR(KVMIO, 0x83, struct kvm_sregs)
1308#define KVM_SET_SREGS _IOW(KVMIO, 0x84, struct kvm_sregs)
1309#define KVM_TRANSLATE _IOWR(KVMIO, 0x85, struct kvm_translation)
1310#define KVM_INTERRUPT _IOW(KVMIO, 0x86, struct kvm_interrupt)
1311#define KVM_GET_MSRS _IOWR(KVMIO, 0x88, struct kvm_msrs)
1312#define KVM_SET_MSRS _IOW(KVMIO, 0x89, struct kvm_msrs)
1313#define KVM_SET_CPUID _IOW(KVMIO, 0x8a, struct kvm_cpuid)
1314#define KVM_SET_SIGNAL_MASK _IOW(KVMIO, 0x8b, struct kvm_signal_mask)
1315#define KVM_GET_FPU _IOR(KVMIO, 0x8c, struct kvm_fpu)
1316#define KVM_SET_FPU _IOW(KVMIO, 0x8d, struct kvm_fpu)
1317#define KVM_GET_LAPIC _IOR(KVMIO, 0x8e, struct kvm_lapic_state)
1318#define KVM_SET_LAPIC _IOW(KVMIO, 0x8f, struct kvm_lapic_state)
1319#define KVM_SET_CPUID2 _IOW(KVMIO, 0x90, struct kvm_cpuid2)
1320#define KVM_GET_CPUID2 _IOWR(KVMIO, 0x91, struct kvm_cpuid2)
1321/* Available with KVM_CAP_VAPIC */
1322#define KVM_TPR_ACCESS_REPORTING _IOWR(KVMIO, 0x92, struct kvm_tpr_access_ctl)
1323/* Available with KVM_CAP_VAPIC */
1324#define KVM_SET_VAPIC_ADDR _IOW(KVMIO, 0x93, struct kvm_vapic_addr)
1325/* valid for virtual machine (for floating interrupt)_and_ vcpu */
1326#define KVM_S390_INTERRUPT _IOW(KVMIO, 0x94, struct kvm_s390_interrupt)
1327/* store status for s390 */
1328#define KVM_S390_STORE_STATUS_NOADDR (-1ul)
1329#define KVM_S390_STORE_STATUS_PREFIXED (-2ul)
1330#define KVM_S390_STORE_STATUS _IOW(KVMIO, 0x95, unsigned long)
1331/* initial ipl psw for s390 */
1332#define KVM_S390_SET_INITIAL_PSW _IOW(KVMIO, 0x96, struct kvm_s390_psw)
1333/* initial reset for s390 */
1334#define KVM_S390_INITIAL_RESET _IO(KVMIO, 0x97)
1335#define KVM_GET_MP_STATE _IOR(KVMIO, 0x98, struct kvm_mp_state)
1336#define KVM_SET_MP_STATE _IOW(KVMIO, 0x99, struct kvm_mp_state)
1337/* Available with KVM_CAP_USER_NMI */
1338#define KVM_NMI _IO(KVMIO, 0x9a)
1339/* Available with KVM_CAP_SET_GUEST_DEBUG */
1340#define KVM_SET_GUEST_DEBUG _IOW(KVMIO, 0x9b, struct kvm_guest_debug)
1341/* MCE for x86 */
1342#define KVM_X86_SETUP_MCE _IOW(KVMIO, 0x9c, __u64)
1343#define KVM_X86_GET_MCE_CAP_SUPPORTED _IOR(KVMIO, 0x9d, __u64)
1344#define KVM_X86_SET_MCE _IOW(KVMIO, 0x9e, struct kvm_x86_mce)
1345/* Available with KVM_CAP_VCPU_EVENTS */
1346#define KVM_GET_VCPU_EVENTS _IOR(KVMIO, 0x9f, struct kvm_vcpu_events)
1347#define KVM_SET_VCPU_EVENTS _IOW(KVMIO, 0xa0, struct kvm_vcpu_events)
1348/* Available with KVM_CAP_DEBUGREGS */
1349#define KVM_GET_DEBUGREGS _IOR(KVMIO, 0xa1, struct kvm_debugregs)
1350#define KVM_SET_DEBUGREGS _IOW(KVMIO, 0xa2, struct kvm_debugregs)
1351/*
1352 * vcpu version available with KVM_CAP_ENABLE_CAP
1353 * vm version available with KVM_CAP_ENABLE_CAP_VM
1354 */
1355#define KVM_ENABLE_CAP _IOW(KVMIO, 0xa3, struct kvm_enable_cap)
1356/* Available with KVM_CAP_XSAVE */
1357#define KVM_GET_XSAVE _IOR(KVMIO, 0xa4, struct kvm_xsave)
1358#define KVM_SET_XSAVE _IOW(KVMIO, 0xa5, struct kvm_xsave)
1359/* Available with KVM_CAP_XCRS */
1360#define KVM_GET_XCRS _IOR(KVMIO, 0xa6, struct kvm_xcrs)
1361#define KVM_SET_XCRS _IOW(KVMIO, 0xa7, struct kvm_xcrs)
1362/* Available with KVM_CAP_SW_TLB */
1363#define KVM_DIRTY_TLB _IOW(KVMIO, 0xaa, struct kvm_dirty_tlb)
1364/* Available with KVM_CAP_ONE_REG */
1365#define KVM_GET_ONE_REG _IOW(KVMIO, 0xab, struct kvm_one_reg)
1366#define KVM_SET_ONE_REG _IOW(KVMIO, 0xac, struct kvm_one_reg)
1367/* VM is being stopped by host */
1368#define KVM_KVMCLOCK_CTRL _IO(KVMIO, 0xad)
1369#define KVM_ARM_VCPU_INIT _IOW(KVMIO, 0xae, struct kvm_vcpu_init)
1370#define KVM_ARM_PREFERRED_TARGET _IOR(KVMIO, 0xaf, struct kvm_vcpu_init)
1371#define KVM_GET_REG_LIST _IOWR(KVMIO, 0xb0, struct kvm_reg_list)
1372/* Available with KVM_CAP_S390_MEM_OP */
1373#define KVM_S390_MEM_OP _IOW(KVMIO, 0xb1, struct kvm_s390_mem_op)
1374/* Available with KVM_CAP_S390_SKEYS */
1375#define KVM_S390_GET_SKEYS _IOW(KVMIO, 0xb2, struct kvm_s390_skeys)
1376#define KVM_S390_SET_SKEYS _IOW(KVMIO, 0xb3, struct kvm_s390_skeys)
1377/* Available with KVM_CAP_S390_INJECT_IRQ */
1378#define KVM_S390_IRQ _IOW(KVMIO, 0xb4, struct kvm_s390_irq)
1379/* Available with KVM_CAP_S390_IRQ_STATE */
1380#define KVM_S390_SET_IRQ_STATE _IOW(KVMIO, 0xb5, struct kvm_s390_irq_state)
1381#define KVM_S390_GET_IRQ_STATE _IOW(KVMIO, 0xb6, struct kvm_s390_irq_state)
1382/* Available with KVM_CAP_X86_SMM */
1383#define KVM_SMI _IO(KVMIO, 0xb7)
1384/* Available with KVM_CAP_S390_CMMA_MIGRATION */
1385#define KVM_S390_GET_CMMA_BITS _IOWR(KVMIO, 0xb8, struct kvm_s390_cmma_log)
1386#define KVM_S390_SET_CMMA_BITS _IOW(KVMIO, 0xb9, struct kvm_s390_cmma_log)
1387/* Memory Encryption Commands */
1388#define KVM_MEMORY_ENCRYPT_OP _IOWR(KVMIO, 0xba, unsigned long)
1389
1390struct kvm_enc_region {
1391 __u64 addr;
1392 __u64 size;
1393};
1394
1395#define KVM_MEMORY_ENCRYPT_REG_REGION _IOR(KVMIO, 0xbb, struct kvm_enc_region)
1396#define KVM_MEMORY_ENCRYPT_UNREG_REGION _IOR(KVMIO, 0xbc, struct kvm_enc_region)
1397
1398/* Available with KVM_CAP_HYPERV_EVENTFD */
1399#define KVM_HYPERV_EVENTFD _IOW(KVMIO, 0xbd, struct kvm_hyperv_eventfd)
1400
1401/* Available with KVM_CAP_NESTED_STATE */
1402#define KVM_GET_NESTED_STATE _IOWR(KVMIO, 0xbe, struct kvm_nested_state)
1403#define KVM_SET_NESTED_STATE _IOW(KVMIO, 0xbf, struct kvm_nested_state)
1404
1405/* Available with KVM_CAP_MANUAL_DIRTY_LOG_PROTECT_2 */
1406#define KVM_CLEAR_DIRTY_LOG _IOWR(KVMIO, 0xc0, struct kvm_clear_dirty_log)
1407
1408/* Available with KVM_CAP_HYPERV_CPUID (vcpu) / KVM_CAP_SYS_HYPERV_CPUID (system) */
1409#define KVM_GET_SUPPORTED_HV_CPUID _IOWR(KVMIO, 0xc1, struct kvm_cpuid2)
1410
1411/* Available with KVM_CAP_ARM_SVE */
1412#define KVM_ARM_VCPU_FINALIZE _IOW(KVMIO, 0xc2, int)
1413
1414/* Available with KVM_CAP_S390_VCPU_RESETS */
1415#define KVM_S390_NORMAL_RESET _IO(KVMIO, 0xc3)
1416#define KVM_S390_CLEAR_RESET _IO(KVMIO, 0xc4)
1417
1418/* Available with KVM_CAP_S390_PROTECTED */
1419#define KVM_S390_PV_COMMAND _IOWR(KVMIO, 0xc5, struct kvm_pv_cmd)
1420
1421/* Available with KVM_CAP_X86_MSR_FILTER */
1422#define KVM_X86_SET_MSR_FILTER _IOW(KVMIO, 0xc6, struct kvm_msr_filter)
1423
1424/* Available with KVM_CAP_DIRTY_LOG_RING */
1425#define KVM_RESET_DIRTY_RINGS _IO(KVMIO, 0xc7)
1426
1427/* Per-VM Xen attributes */
1428#define KVM_XEN_HVM_GET_ATTR _IOWR(KVMIO, 0xc8, struct kvm_xen_hvm_attr)
1429#define KVM_XEN_HVM_SET_ATTR _IOW(KVMIO, 0xc9, struct kvm_xen_hvm_attr)
1430
1431/* Per-vCPU Xen attributes */
1432#define KVM_XEN_VCPU_GET_ATTR _IOWR(KVMIO, 0xca, struct kvm_xen_vcpu_attr)
1433#define KVM_XEN_VCPU_SET_ATTR _IOW(KVMIO, 0xcb, struct kvm_xen_vcpu_attr)
1434
1435/* Available with KVM_CAP_XEN_HVM / KVM_XEN_HVM_CONFIG_EVTCHN_SEND */
1436#define KVM_XEN_HVM_EVTCHN_SEND _IOW(KVMIO, 0xd0, struct kvm_irq_routing_xen_evtchn)
1437
1438#define KVM_GET_SREGS2 _IOR(KVMIO, 0xcc, struct kvm_sregs2)
1439#define KVM_SET_SREGS2 _IOW(KVMIO, 0xcd, struct kvm_sregs2)
1440
1441#define KVM_DIRTY_LOG_MANUAL_PROTECT_ENABLE (1 << 0)
1442#define KVM_DIRTY_LOG_INITIALLY_SET (1 << 1)
1443
1444/*
1445 * Arch needs to define the macro after implementing the dirty ring
1446 * feature. KVM_DIRTY_LOG_PAGE_OFFSET should be defined as the
1447 * starting page offset of the dirty ring structures.
1448 */
1449#ifndef KVM_DIRTY_LOG_PAGE_OFFSET
1450#define KVM_DIRTY_LOG_PAGE_OFFSET 0
1451#endif
1452
1453/*
1454 * KVM dirty GFN flags, defined as:
1455 *
1456 * |---------------+---------------+--------------|
1457 * | bit 1 (reset) | bit 0 (dirty) | Status |
1458 * |---------------+---------------+--------------|
1459 * | 0 | 0 | Invalid GFN |
1460 * | 0 | 1 | Dirty GFN |
1461 * | 1 | X | GFN to reset |
1462 * |---------------+---------------+--------------|
1463 *
1464 * Lifecycle of a dirty GFN goes like:
1465 *
1466 * dirtied harvested reset
1467 * 00 -----------> 01 -------------> 1X -------+
1468 * ^ |
1469 * | |
1470 * +------------------------------------------+
1471 *
1472 * The userspace program is only responsible for the 01->1X state
1473 * conversion after harvesting an entry. Also, it must not skip any
1474 * dirty bits, so that dirty bits are always harvested in sequence.
1475 */
1476#define KVM_DIRTY_GFN_F_DIRTY _BITUL(0)
1477#define KVM_DIRTY_GFN_F_RESET _BITUL(1)
1478#define KVM_DIRTY_GFN_F_MASK 0x3
1479
1480/*
1481 * KVM dirty rings should be mapped at KVM_DIRTY_LOG_PAGE_OFFSET of
1482 * per-vcpu mmaped regions as an array of struct kvm_dirty_gfn. The
1483 * size of the gfn buffer is decided by the first argument when
1484 * enabling KVM_CAP_DIRTY_LOG_RING.
1485 */
1486struct kvm_dirty_gfn {
1487 __u32 flags;
1488 __u32 slot;
1489 __u64 offset;
1490};
1491
1492#define KVM_BUS_LOCK_DETECTION_OFF (1 << 0)
1493#define KVM_BUS_LOCK_DETECTION_EXIT (1 << 1)
1494
1495#define KVM_PMU_CAP_DISABLE (1 << 0)
1496
1497/**
1498 * struct kvm_stats_header - Header of per vm/vcpu binary statistics data.
1499 * @flags: Some extra information for header, always 0 for now.
1500 * @name_size: The size in bytes of the memory which contains statistics
1501 * name string including trailing '\0'. The memory is allocated
1502 * at the send of statistics descriptor.
1503 * @num_desc: The number of statistics the vm or vcpu has.
1504 * @id_offset: The offset of the vm/vcpu stats' id string in the file pointed
1505 * by vm/vcpu stats fd.
1506 * @desc_offset: The offset of the vm/vcpu stats' descriptor block in the file
1507 * pointd by vm/vcpu stats fd.
1508 * @data_offset: The offset of the vm/vcpu stats' data block in the file
1509 * pointed by vm/vcpu stats fd.
1510 *
1511 * This is the header userspace needs to read from stats fd before any other
1512 * readings. It is used by userspace to discover all the information about the
1513 * vm/vcpu's binary statistics.
1514 * Userspace reads this header from the start of the vm/vcpu's stats fd.
1515 */
1516struct kvm_stats_header {
1517 __u32 flags;
1518 __u32 name_size;
1519 __u32 num_desc;
1520 __u32 id_offset;
1521 __u32 desc_offset;
1522 __u32 data_offset;
1523};
1524
1525#define KVM_STATS_TYPE_SHIFT 0
1526#define KVM_STATS_TYPE_MASK (0xF << KVM_STATS_TYPE_SHIFT)
1527#define KVM_STATS_TYPE_CUMULATIVE (0x0 << KVM_STATS_TYPE_SHIFT)
1528#define KVM_STATS_TYPE_INSTANT (0x1 << KVM_STATS_TYPE_SHIFT)
1529#define KVM_STATS_TYPE_PEAK (0x2 << KVM_STATS_TYPE_SHIFT)
1530#define KVM_STATS_TYPE_LINEAR_HIST (0x3 << KVM_STATS_TYPE_SHIFT)
1531#define KVM_STATS_TYPE_LOG_HIST (0x4 << KVM_STATS_TYPE_SHIFT)
1532#define KVM_STATS_TYPE_MAX KVM_STATS_TYPE_LOG_HIST
1533
1534#define KVM_STATS_UNIT_SHIFT 4
1535#define KVM_STATS_UNIT_MASK (0xF << KVM_STATS_UNIT_SHIFT)
1536#define KVM_STATS_UNIT_NONE (0x0 << KVM_STATS_UNIT_SHIFT)
1537#define KVM_STATS_UNIT_BYTES (0x1 << KVM_STATS_UNIT_SHIFT)
1538#define KVM_STATS_UNIT_SECONDS (0x2 << KVM_STATS_UNIT_SHIFT)
1539#define KVM_STATS_UNIT_CYCLES (0x3 << KVM_STATS_UNIT_SHIFT)
1540#define KVM_STATS_UNIT_BOOLEAN (0x4 << KVM_STATS_UNIT_SHIFT)
1541#define KVM_STATS_UNIT_MAX KVM_STATS_UNIT_BOOLEAN
1542
1543#define KVM_STATS_BASE_SHIFT 8
1544#define KVM_STATS_BASE_MASK (0xF << KVM_STATS_BASE_SHIFT)
1545#define KVM_STATS_BASE_POW10 (0x0 << KVM_STATS_BASE_SHIFT)
1546#define KVM_STATS_BASE_POW2 (0x1 << KVM_STATS_BASE_SHIFT)
1547#define KVM_STATS_BASE_MAX KVM_STATS_BASE_POW2
1548
1549/**
1550 * struct kvm_stats_desc - Descriptor of a KVM statistics.
1551 * @flags: Annotations of the stats, like type, unit, etc.
1552 * @exponent: Used together with @flags to determine the unit.
1553 * @size: The number of data items for this stats.
1554 * Every data item is of type __u64.
1555 * @offset: The offset of the stats to the start of stat structure in
1556 * structure kvm or kvm_vcpu.
1557 * @bucket_size: A parameter value used for histogram stats. It is only used
1558 * for linear histogram stats, specifying the size of the bucket;
1559 * @name: The name string for the stats. Its size is indicated by the
1560 * &kvm_stats_header->name_size.
1561 */
1562struct kvm_stats_desc {
1563 __u32 flags;
1564 __s16 exponent;
1565 __u16 size;
1566 __u32 offset;
1567 __u32 bucket_size;
1568 char name[];
1569};
1570
1571#define KVM_GET_STATS_FD _IO(KVMIO, 0xce)
1572
1573/* Available with KVM_CAP_XSAVE2 */
1574#define KVM_GET_XSAVE2 _IOR(KVMIO, 0xcf, struct kvm_xsave)
1575
1576/* Available with KVM_CAP_S390_PROTECTED_DUMP */
1577#define KVM_S390_PV_CPU_COMMAND _IOWR(KVMIO, 0xd0, struct kvm_pv_cmd)
1578
1579/* Available with KVM_CAP_X86_NOTIFY_VMEXIT */
1580#define KVM_X86_NOTIFY_VMEXIT_ENABLED (1ULL << 0)
1581#define KVM_X86_NOTIFY_VMEXIT_USER (1ULL << 1)
1582
1583/* Available with KVM_CAP_S390_ZPCI_OP */
1584#define KVM_S390_ZPCI_OP _IOW(KVMIO, 0xd1, struct kvm_s390_zpci_op)
1585
1586/* Available with KVM_CAP_MEMORY_ATTRIBUTES */
1587#define KVM_SET_MEMORY_ATTRIBUTES _IOW(KVMIO, 0xd2, struct kvm_memory_attributes)
1588
1589struct kvm_memory_attributes {
1590 __u64 address;
1591 __u64 size;
1592 __u64 attributes;
1593 __u64 flags;
1594};
1595
1596#define KVM_MEMORY_ATTRIBUTE_PRIVATE (1ULL << 3)
1597
1598#define KVM_CREATE_GUEST_MEMFD _IOWR(KVMIO, 0xd4, struct kvm_create_guest_memfd)
1599
1600struct kvm_create_guest_memfd {
1601 __u64 size;
1602 __u64 flags;
1603 __u64 reserved[6];
1604};
1605
1606#define KVM_PRE_FAULT_MEMORY _IOWR(KVMIO, 0xd5, struct kvm_pre_fault_memory)
1607
1608struct kvm_pre_fault_memory {
1609 __u64 gpa;
1610 __u64 size;
1611 __u64 flags;
1612 __u64 padding[5];
1613};
1614
1615#endif /* __LINUX_KVM_H */