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Linux 6.16-rc4
[thirdparty/kernel/stable.git] / include / uapi / linux / kvm.h
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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 };
471 } tdx;
472 /* Fix the size of the union. */
473 char padding[256];
474 };
475
476 /* 2048 is the size of the char array used to bound/pad the size
477 * of the union that holds sync regs.
478 */
479 #define SYNC_REGS_SIZE_BYTES 2048
480 /*
481 * shared registers between kvm and userspace.
482 * kvm_valid_regs specifies the register classes set by the host
483 * kvm_dirty_regs specified the register classes dirtied by userspace
484 * struct kvm_sync_regs is architecture specific, as well as the
485 * bits for kvm_valid_regs and kvm_dirty_regs
486 */
487 __u64 kvm_valid_regs;
488 __u64 kvm_dirty_regs;
489 union {
490 struct kvm_sync_regs regs;
491 char padding[SYNC_REGS_SIZE_BYTES];
492 } s;
493};
494
495/* for KVM_REGISTER_COALESCED_MMIO / KVM_UNREGISTER_COALESCED_MMIO */
496
497struct kvm_coalesced_mmio_zone {
498 __u64 addr;
499 __u32 size;
500 union {
501 __u32 pad;
502 __u32 pio;
503 };
504};
505
506struct kvm_coalesced_mmio {
507 __u64 phys_addr;
508 __u32 len;
509 union {
510 __u32 pad;
511 __u32 pio;
512 };
513 __u8 data[8];
514};
515
516struct kvm_coalesced_mmio_ring {
517 __u32 first, last;
518 struct kvm_coalesced_mmio coalesced_mmio[];
519};
520
521#define KVM_COALESCED_MMIO_MAX \
522 ((PAGE_SIZE - sizeof(struct kvm_coalesced_mmio_ring)) / \
523 sizeof(struct kvm_coalesced_mmio))
524
525/* for KVM_TRANSLATE */
526struct kvm_translation {
527 /* in */
528 __u64 linear_address;
529
530 /* out */
531 __u64 physical_address;
532 __u8 valid;
533 __u8 writeable;
534 __u8 usermode;
535 __u8 pad[5];
536};
537
538/* for KVM_INTERRUPT */
539struct kvm_interrupt {
540 /* in */
541 __u32 irq;
542};
543
544/* for KVM_GET_DIRTY_LOG */
545struct kvm_dirty_log {
546 __u32 slot;
547 __u32 padding1;
548 union {
549 void __user *dirty_bitmap; /* one bit per page */
550 __u64 padding2;
551 };
552};
553
554/* for KVM_CLEAR_DIRTY_LOG */
555struct kvm_clear_dirty_log {
556 __u32 slot;
557 __u32 num_pages;
558 __u64 first_page;
559 union {
560 void __user *dirty_bitmap; /* one bit per page */
561 __u64 padding2;
562 };
563};
564
565/* for KVM_SET_SIGNAL_MASK */
566struct kvm_signal_mask {
567 __u32 len;
568 __u8 sigset[];
569};
570
571/* for KVM_TPR_ACCESS_REPORTING */
572struct kvm_tpr_access_ctl {
573 __u32 enabled;
574 __u32 flags;
575 __u32 reserved[8];
576};
577
578/* for KVM_SET_VAPIC_ADDR */
579struct kvm_vapic_addr {
580 __u64 vapic_addr;
581};
582
583/* for KVM_SET_MP_STATE */
584
585/* not all states are valid on all architectures */
586#define KVM_MP_STATE_RUNNABLE 0
587#define KVM_MP_STATE_UNINITIALIZED 1
588#define KVM_MP_STATE_INIT_RECEIVED 2
589#define KVM_MP_STATE_HALTED 3
590#define KVM_MP_STATE_SIPI_RECEIVED 4
591#define KVM_MP_STATE_STOPPED 5
592#define KVM_MP_STATE_CHECK_STOP 6
593#define KVM_MP_STATE_OPERATING 7
594#define KVM_MP_STATE_LOAD 8
595#define KVM_MP_STATE_AP_RESET_HOLD 9
596#define KVM_MP_STATE_SUSPENDED 10
597
598struct kvm_mp_state {
599 __u32 mp_state;
600};
601
602/* for KVM_SET_GUEST_DEBUG */
603
604#define KVM_GUESTDBG_ENABLE 0x00000001
605#define KVM_GUESTDBG_SINGLESTEP 0x00000002
606
607struct kvm_guest_debug {
608 __u32 control;
609 __u32 pad;
610 struct kvm_guest_debug_arch arch;
611};
612
613enum {
614 kvm_ioeventfd_flag_nr_datamatch,
615 kvm_ioeventfd_flag_nr_pio,
616 kvm_ioeventfd_flag_nr_deassign,
617 kvm_ioeventfd_flag_nr_virtio_ccw_notify,
618 kvm_ioeventfd_flag_nr_fast_mmio,
619 kvm_ioeventfd_flag_nr_max,
620};
621
622#define KVM_IOEVENTFD_FLAG_DATAMATCH (1 << kvm_ioeventfd_flag_nr_datamatch)
623#define KVM_IOEVENTFD_FLAG_PIO (1 << kvm_ioeventfd_flag_nr_pio)
624#define KVM_IOEVENTFD_FLAG_DEASSIGN (1 << kvm_ioeventfd_flag_nr_deassign)
625#define KVM_IOEVENTFD_FLAG_VIRTIO_CCW_NOTIFY \
626 (1 << kvm_ioeventfd_flag_nr_virtio_ccw_notify)
627
628#define KVM_IOEVENTFD_VALID_FLAG_MASK ((1 << kvm_ioeventfd_flag_nr_max) - 1)
629
630struct kvm_ioeventfd {
631 __u64 datamatch;
632 __u64 addr; /* legal pio/mmio address */
633 __u32 len; /* 1, 2, 4, or 8 bytes; or 0 to ignore length */
634 __s32 fd;
635 __u32 flags;
636 __u8 pad[36];
637};
638
639#define KVM_X86_DISABLE_EXITS_MWAIT (1 << 0)
640#define KVM_X86_DISABLE_EXITS_HLT (1 << 1)
641#define KVM_X86_DISABLE_EXITS_PAUSE (1 << 2)
642#define KVM_X86_DISABLE_EXITS_CSTATE (1 << 3)
643
644/* for KVM_ENABLE_CAP */
645struct kvm_enable_cap {
646 /* in */
647 __u32 cap;
648 __u32 flags;
649 __u64 args[4];
650 __u8 pad[64];
651};
652
653#define KVMIO 0xAE
654
655/* machine type bits, to be used as argument to KVM_CREATE_VM */
656#define KVM_VM_S390_UCONTROL 1
657
658/* on ppc, 0 indicate default, 1 should force HV and 2 PR */
659#define KVM_VM_PPC_HV 1
660#define KVM_VM_PPC_PR 2
661
662/* on MIPS, 0 indicates auto, 1 forces VZ ASE, 2 forces trap & emulate */
663#define KVM_VM_MIPS_AUTO 0
664#define KVM_VM_MIPS_VZ 1
665#define KVM_VM_MIPS_TE 2
666
667#define KVM_S390_SIE_PAGE_OFFSET 1
668
669/*
670 * On arm64, machine type can be used to request the physical
671 * address size for the VM. Bits[7-0] are reserved for the guest
672 * PA size shift (i.e, log2(PA_Size)). For backward compatibility,
673 * value 0 implies the default IPA size, 40bits.
674 */
675#define KVM_VM_TYPE_ARM_IPA_SIZE_MASK 0xffULL
676#define KVM_VM_TYPE_ARM_IPA_SIZE(x) \
677 ((x) & KVM_VM_TYPE_ARM_IPA_SIZE_MASK)
678/*
679 * ioctls for /dev/kvm fds:
680 */
681#define KVM_GET_API_VERSION _IO(KVMIO, 0x00)
682#define KVM_CREATE_VM _IO(KVMIO, 0x01) /* returns a VM fd */
683#define KVM_GET_MSR_INDEX_LIST _IOWR(KVMIO, 0x02, struct kvm_msr_list)
684
685#define KVM_S390_ENABLE_SIE _IO(KVMIO, 0x06)
686/*
687 * Check if a kvm extension is available. Argument is extension number,
688 * return is 1 (yes) or 0 (no, sorry).
689 */
690#define KVM_CHECK_EXTENSION _IO(KVMIO, 0x03)
691/*
692 * Get size for mmap(vcpu_fd)
693 */
694#define KVM_GET_VCPU_MMAP_SIZE _IO(KVMIO, 0x04) /* in bytes */
695#define KVM_GET_SUPPORTED_CPUID _IOWR(KVMIO, 0x05, struct kvm_cpuid2)
696#define KVM_GET_EMULATED_CPUID _IOWR(KVMIO, 0x09, struct kvm_cpuid2)
697#define KVM_GET_MSR_FEATURE_INDEX_LIST _IOWR(KVMIO, 0x0a, struct kvm_msr_list)
698
699/*
700 * Extension capability list.
701 */
702#define KVM_CAP_IRQCHIP 0
703#define KVM_CAP_HLT 1
704#define KVM_CAP_MMU_SHADOW_CACHE_CONTROL 2
705#define KVM_CAP_USER_MEMORY 3
706#define KVM_CAP_SET_TSS_ADDR 4
707#define KVM_CAP_VAPIC 6
708#define KVM_CAP_EXT_CPUID 7
709#define KVM_CAP_CLOCKSOURCE 8
710#define KVM_CAP_NR_VCPUS 9 /* returns recommended max vcpus per vm */
711#define KVM_CAP_NR_MEMSLOTS 10 /* returns max memory slots per vm */
712#define KVM_CAP_PIT 11
713#define KVM_CAP_NOP_IO_DELAY 12
714#define KVM_CAP_PV_MMU 13
715#define KVM_CAP_MP_STATE 14
716#define KVM_CAP_COALESCED_MMIO 15
717#define KVM_CAP_SYNC_MMU 16 /* Changes to host mmap are reflected in guest */
718#define KVM_CAP_IOMMU 18
719/* Bug in KVM_SET_USER_MEMORY_REGION fixed: */
720#define KVM_CAP_DESTROY_MEMORY_REGION_WORKS 21
721#define KVM_CAP_USER_NMI 22
722#define KVM_CAP_SET_GUEST_DEBUG 23
723#ifdef __KVM_HAVE_PIT
724#define KVM_CAP_REINJECT_CONTROL 24
725#endif
726#define KVM_CAP_IRQ_ROUTING 25
727#define KVM_CAP_IRQ_INJECT_STATUS 26
728#define KVM_CAP_ASSIGN_DEV_IRQ 29
729/* Another bug in KVM_SET_USER_MEMORY_REGION fixed: */
730#define KVM_CAP_JOIN_MEMORY_REGIONS_WORKS 30
731#ifdef __KVM_HAVE_MCE
732#define KVM_CAP_MCE 31
733#endif
734#define KVM_CAP_IRQFD 32
735#ifdef __KVM_HAVE_PIT
736#define KVM_CAP_PIT2 33
737#endif
738#define KVM_CAP_SET_BOOT_CPU_ID 34
739#ifdef __KVM_HAVE_PIT_STATE2
740#define KVM_CAP_PIT_STATE2 35
741#endif
742#define KVM_CAP_IOEVENTFD 36
743#define KVM_CAP_SET_IDENTITY_MAP_ADDR 37
744#ifdef __KVM_HAVE_XEN_HVM
745#define KVM_CAP_XEN_HVM 38
746#endif
747#define KVM_CAP_ADJUST_CLOCK 39
748#define KVM_CAP_INTERNAL_ERROR_DATA 40
749#ifdef __KVM_HAVE_VCPU_EVENTS
750#define KVM_CAP_VCPU_EVENTS 41
751#endif
752#define KVM_CAP_S390_PSW 42
753#define KVM_CAP_PPC_SEGSTATE 43
754#define KVM_CAP_HYPERV 44
755#define KVM_CAP_HYPERV_VAPIC 45
756#define KVM_CAP_HYPERV_SPIN 46
757#define KVM_CAP_PCI_SEGMENT 47
758#define KVM_CAP_PPC_PAIRED_SINGLES 48
759#define KVM_CAP_INTR_SHADOW 49
760#ifdef __KVM_HAVE_DEBUGREGS
761#define KVM_CAP_DEBUGREGS 50
762#endif
763#define KVM_CAP_X86_ROBUST_SINGLESTEP 51
764#define KVM_CAP_PPC_OSI 52
765#define KVM_CAP_PPC_UNSET_IRQ 53
766#define KVM_CAP_ENABLE_CAP 54
767#ifdef __KVM_HAVE_XSAVE
768#define KVM_CAP_XSAVE 55
769#endif
770#ifdef __KVM_HAVE_XCRS
771#define KVM_CAP_XCRS 56
772#endif
773#define KVM_CAP_PPC_GET_PVINFO 57
774#define KVM_CAP_PPC_IRQ_LEVEL 58
775#define KVM_CAP_ASYNC_PF 59
776#define KVM_CAP_TSC_CONTROL 60
777#define KVM_CAP_GET_TSC_KHZ 61
778#define KVM_CAP_PPC_BOOKE_SREGS 62
779#define KVM_CAP_SPAPR_TCE 63
780#define KVM_CAP_PPC_SMT 64
781#define KVM_CAP_PPC_RMA 65
782#define KVM_CAP_MAX_VCPUS 66 /* returns max vcpus per vm */
783#define KVM_CAP_PPC_HIOR 67
784#define KVM_CAP_PPC_PAPR 68
785#define KVM_CAP_SW_TLB 69
786#define KVM_CAP_ONE_REG 70
787#define KVM_CAP_S390_GMAP 71
788#define KVM_CAP_TSC_DEADLINE_TIMER 72
789#define KVM_CAP_S390_UCONTROL 73
790#define KVM_CAP_SYNC_REGS 74
791#define KVM_CAP_PCI_2_3 75
792#define KVM_CAP_KVMCLOCK_CTRL 76
793#define KVM_CAP_SIGNAL_MSI 77
794#define KVM_CAP_PPC_GET_SMMU_INFO 78
795#define KVM_CAP_S390_COW 79
796#define KVM_CAP_PPC_ALLOC_HTAB 80
797#define KVM_CAP_READONLY_MEM 81
798#define KVM_CAP_IRQFD_RESAMPLE 82
799#define KVM_CAP_PPC_BOOKE_WATCHDOG 83
800#define KVM_CAP_PPC_HTAB_FD 84
801#define KVM_CAP_S390_CSS_SUPPORT 85
802#define KVM_CAP_PPC_EPR 86
803#define KVM_CAP_ARM_PSCI 87
804#define KVM_CAP_ARM_SET_DEVICE_ADDR 88
805#define KVM_CAP_DEVICE_CTRL 89
806#define KVM_CAP_IRQ_MPIC 90
807#define KVM_CAP_PPC_RTAS 91
808#define KVM_CAP_IRQ_XICS 92
809#define KVM_CAP_ARM_EL1_32BIT 93
810#define KVM_CAP_SPAPR_MULTITCE 94
811#define KVM_CAP_EXT_EMUL_CPUID 95
812#define KVM_CAP_HYPERV_TIME 96
813#define KVM_CAP_IOAPIC_POLARITY_IGNORED 97
814#define KVM_CAP_ENABLE_CAP_VM 98
815#define KVM_CAP_S390_IRQCHIP 99
816#define KVM_CAP_IOEVENTFD_NO_LENGTH 100
817#define KVM_CAP_VM_ATTRIBUTES 101
818#define KVM_CAP_ARM_PSCI_0_2 102
819#define KVM_CAP_PPC_FIXUP_HCALL 103
820#define KVM_CAP_PPC_ENABLE_HCALL 104
821#define KVM_CAP_CHECK_EXTENSION_VM 105
822#define KVM_CAP_S390_USER_SIGP 106
823#define KVM_CAP_S390_VECTOR_REGISTERS 107
824#define KVM_CAP_S390_MEM_OP 108
825#define KVM_CAP_S390_USER_STSI 109
826#define KVM_CAP_S390_SKEYS 110
827#define KVM_CAP_MIPS_FPU 111
828#define KVM_CAP_MIPS_MSA 112
829#define KVM_CAP_S390_INJECT_IRQ 113
830#define KVM_CAP_S390_IRQ_STATE 114
831#define KVM_CAP_PPC_HWRNG 115
832#define KVM_CAP_DISABLE_QUIRKS 116
833#define KVM_CAP_X86_SMM 117
834#define KVM_CAP_MULTI_ADDRESS_SPACE 118
835#define KVM_CAP_GUEST_DEBUG_HW_BPS 119
836#define KVM_CAP_GUEST_DEBUG_HW_WPS 120
837#define KVM_CAP_SPLIT_IRQCHIP 121
838#define KVM_CAP_IOEVENTFD_ANY_LENGTH 122
839#define KVM_CAP_HYPERV_SYNIC 123
840#define KVM_CAP_S390_RI 124
841#define KVM_CAP_SPAPR_TCE_64 125
842#define KVM_CAP_ARM_PMU_V3 126
843#define KVM_CAP_VCPU_ATTRIBUTES 127
844#define KVM_CAP_MAX_VCPU_ID 128
845#define KVM_CAP_X2APIC_API 129
846#define KVM_CAP_S390_USER_INSTR0 130
847#define KVM_CAP_MSI_DEVID 131
848#define KVM_CAP_PPC_HTM 132
849#define KVM_CAP_SPAPR_RESIZE_HPT 133
850#define KVM_CAP_PPC_MMU_RADIX 134
851#define KVM_CAP_PPC_MMU_HASH_V3 135
852#define KVM_CAP_IMMEDIATE_EXIT 136
853#define KVM_CAP_MIPS_VZ 137
854#define KVM_CAP_MIPS_TE 138
855#define KVM_CAP_MIPS_64BIT 139
856#define KVM_CAP_S390_GS 140
857#define KVM_CAP_S390_AIS 141
858#define KVM_CAP_SPAPR_TCE_VFIO 142
859#define KVM_CAP_X86_DISABLE_EXITS 143
860#define KVM_CAP_ARM_USER_IRQ 144
861#define KVM_CAP_S390_CMMA_MIGRATION 145
862#define KVM_CAP_PPC_FWNMI 146
863#define KVM_CAP_PPC_SMT_POSSIBLE 147
864#define KVM_CAP_HYPERV_SYNIC2 148
865#define KVM_CAP_HYPERV_VP_INDEX 149
866#define KVM_CAP_S390_AIS_MIGRATION 150
867#define KVM_CAP_PPC_GET_CPU_CHAR 151
868#define KVM_CAP_S390_BPB 152
869#define KVM_CAP_GET_MSR_FEATURES 153
870#define KVM_CAP_HYPERV_EVENTFD 154
871#define KVM_CAP_HYPERV_TLBFLUSH 155
872#define KVM_CAP_S390_HPAGE_1M 156
873#define KVM_CAP_NESTED_STATE 157
874#define KVM_CAP_ARM_INJECT_SERROR_ESR 158
875#define KVM_CAP_MSR_PLATFORM_INFO 159
876#define KVM_CAP_PPC_NESTED_HV 160
877#define KVM_CAP_HYPERV_SEND_IPI 161
878#define KVM_CAP_COALESCED_PIO 162
879#define KVM_CAP_HYPERV_ENLIGHTENED_VMCS 163
880#define KVM_CAP_EXCEPTION_PAYLOAD 164
881#define KVM_CAP_ARM_VM_IPA_SIZE 165
882#define KVM_CAP_MANUAL_DIRTY_LOG_PROTECT 166 /* Obsolete */
883#define KVM_CAP_HYPERV_CPUID 167
884#define KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2 168
885#define KVM_CAP_PPC_IRQ_XIVE 169
886#define KVM_CAP_ARM_SVE 170
887#define KVM_CAP_ARM_PTRAUTH_ADDRESS 171
888#define KVM_CAP_ARM_PTRAUTH_GENERIC 172
889#define KVM_CAP_PMU_EVENT_FILTER 173
890#define KVM_CAP_ARM_IRQ_LINE_LAYOUT_2 174
891#define KVM_CAP_HYPERV_DIRECT_TLBFLUSH 175
892#define KVM_CAP_PPC_GUEST_DEBUG_SSTEP 176
893#define KVM_CAP_ARM_NISV_TO_USER 177
894#define KVM_CAP_ARM_INJECT_EXT_DABT 178
895#define KVM_CAP_S390_VCPU_RESETS 179
896#define KVM_CAP_S390_PROTECTED 180
897#define KVM_CAP_PPC_SECURE_GUEST 181
898#define KVM_CAP_HALT_POLL 182
899#define KVM_CAP_ASYNC_PF_INT 183
900#define KVM_CAP_LAST_CPU 184
901#define KVM_CAP_SMALLER_MAXPHYADDR 185
902#define KVM_CAP_S390_DIAG318 186
903#define KVM_CAP_STEAL_TIME 187
904#define KVM_CAP_X86_USER_SPACE_MSR 188
905#define KVM_CAP_X86_MSR_FILTER 189
906#define KVM_CAP_ENFORCE_PV_FEATURE_CPUID 190
907#define KVM_CAP_SYS_HYPERV_CPUID 191
908#define KVM_CAP_DIRTY_LOG_RING 192
909#define KVM_CAP_X86_BUS_LOCK_EXIT 193
910#define KVM_CAP_PPC_DAWR1 194
911#define KVM_CAP_SET_GUEST_DEBUG2 195
912#define KVM_CAP_SGX_ATTRIBUTE 196
913#define KVM_CAP_VM_COPY_ENC_CONTEXT_FROM 197
914#define KVM_CAP_PTP_KVM 198
915#define KVM_CAP_HYPERV_ENFORCE_CPUID 199
916#define KVM_CAP_SREGS2 200
917#define KVM_CAP_EXIT_HYPERCALL 201
918#define KVM_CAP_PPC_RPT_INVALIDATE 202
919#define KVM_CAP_BINARY_STATS_FD 203
920#define KVM_CAP_EXIT_ON_EMULATION_FAILURE 204
921#define KVM_CAP_ARM_MTE 205
922#define KVM_CAP_VM_MOVE_ENC_CONTEXT_FROM 206
923#define KVM_CAP_VM_GPA_BITS 207
924#define KVM_CAP_XSAVE2 208
925#define KVM_CAP_SYS_ATTRIBUTES 209
926#define KVM_CAP_PPC_AIL_MODE_3 210
927#define KVM_CAP_S390_MEM_OP_EXTENSION 211
928#define KVM_CAP_PMU_CAPABILITY 212
929#define KVM_CAP_DISABLE_QUIRKS2 213
930#define KVM_CAP_VM_TSC_CONTROL 214
931#define KVM_CAP_SYSTEM_EVENT_DATA 215
932#define KVM_CAP_ARM_SYSTEM_SUSPEND 216
933#define KVM_CAP_S390_PROTECTED_DUMP 217
934#define KVM_CAP_X86_TRIPLE_FAULT_EVENT 218
935#define KVM_CAP_X86_NOTIFY_VMEXIT 219
936#define KVM_CAP_VM_DISABLE_NX_HUGE_PAGES 220
937#define KVM_CAP_S390_ZPCI_OP 221
938#define KVM_CAP_S390_CPU_TOPOLOGY 222
939#define KVM_CAP_DIRTY_LOG_RING_ACQ_REL 223
940#define KVM_CAP_S390_PROTECTED_ASYNC_DISABLE 224
941#define KVM_CAP_DIRTY_LOG_RING_WITH_BITMAP 225
942#define KVM_CAP_PMU_EVENT_MASKED_EVENTS 226
943#define KVM_CAP_COUNTER_OFFSET 227
944#define KVM_CAP_ARM_EAGER_SPLIT_CHUNK_SIZE 228
945#define KVM_CAP_ARM_SUPPORTED_BLOCK_SIZES 229
946#define KVM_CAP_ARM_SUPPORTED_REG_MASK_RANGES 230
947#define KVM_CAP_USER_MEMORY2 231
948#define KVM_CAP_MEMORY_FAULT_INFO 232
949#define KVM_CAP_MEMORY_ATTRIBUTES 233
950#define KVM_CAP_GUEST_MEMFD 234
951#define KVM_CAP_VM_TYPES 235
952#define KVM_CAP_PRE_FAULT_MEMORY 236
953#define KVM_CAP_X86_APIC_BUS_CYCLES_NS 237
954#define KVM_CAP_X86_GUEST_MODE 238
955#define KVM_CAP_ARM_WRITABLE_IMP_ID_REGS 239
956#define KVM_CAP_ARM_EL2 240
957#define KVM_CAP_ARM_EL2_E2H0 241
958#define KVM_CAP_RISCV_MP_STATE_RESET 242
959
960struct kvm_irq_routing_irqchip {
961 __u32 irqchip;
962 __u32 pin;
963};
964
965struct kvm_irq_routing_msi {
966 __u32 address_lo;
967 __u32 address_hi;
968 __u32 data;
969 union {
970 __u32 pad;
971 __u32 devid;
972 };
973};
974
975struct kvm_irq_routing_s390_adapter {
976 __u64 ind_addr;
977 __u64 summary_addr;
978 __u64 ind_offset;
979 __u32 summary_offset;
980 __u32 adapter_id;
981};
982
983struct kvm_irq_routing_hv_sint {
984 __u32 vcpu;
985 __u32 sint;
986};
987
988struct kvm_irq_routing_xen_evtchn {
989 __u32 port;
990 __u32 vcpu;
991 __u32 priority;
992};
993
994#define KVM_IRQ_ROUTING_XEN_EVTCHN_PRIO_2LEVEL ((__u32)(-1))
995
996/* gsi routing entry types */
997#define KVM_IRQ_ROUTING_IRQCHIP 1
998#define KVM_IRQ_ROUTING_MSI 2
999#define KVM_IRQ_ROUTING_S390_ADAPTER 3
1000#define KVM_IRQ_ROUTING_HV_SINT 4
1001#define KVM_IRQ_ROUTING_XEN_EVTCHN 5
1002
1003struct kvm_irq_routing_entry {
1004 __u32 gsi;
1005 __u32 type;
1006 __u32 flags;
1007 __u32 pad;
1008 union {
1009 struct kvm_irq_routing_irqchip irqchip;
1010 struct kvm_irq_routing_msi msi;
1011 struct kvm_irq_routing_s390_adapter adapter;
1012 struct kvm_irq_routing_hv_sint hv_sint;
1013 struct kvm_irq_routing_xen_evtchn xen_evtchn;
1014 __u32 pad[8];
1015 } u;
1016};
1017
1018struct kvm_irq_routing {
1019 __u32 nr;
1020 __u32 flags;
1021 struct kvm_irq_routing_entry entries[];
1022};
1023
1024#define KVM_IRQFD_FLAG_DEASSIGN (1 << 0)
1025/*
1026 * Available with KVM_CAP_IRQFD_RESAMPLE
1027 *
1028 * KVM_IRQFD_FLAG_RESAMPLE indicates resamplefd is valid and specifies
1029 * the irqfd to operate in resampling mode for level triggered interrupt
1030 * emulation. See Documentation/virt/kvm/api.rst.
1031 */
1032#define KVM_IRQFD_FLAG_RESAMPLE (1 << 1)
1033
1034struct kvm_irqfd {
1035 __u32 fd;
1036 __u32 gsi;
1037 __u32 flags;
1038 __u32 resamplefd;
1039 __u8 pad[16];
1040};
1041
1042/* For KVM_CAP_ADJUST_CLOCK */
1043
1044/* Do not use 1, KVM_CHECK_EXTENSION returned it before we had flags. */
1045#define KVM_CLOCK_TSC_STABLE 2
1046#define KVM_CLOCK_REALTIME (1 << 2)
1047#define KVM_CLOCK_HOST_TSC (1 << 3)
1048
1049struct kvm_clock_data {
1050 __u64 clock;
1051 __u32 flags;
1052 __u32 pad0;
1053 __u64 realtime;
1054 __u64 host_tsc;
1055 __u32 pad[4];
1056};
1057
1058/* For KVM_CAP_SW_TLB */
1059
1060#define KVM_MMU_FSL_BOOKE_NOHV 0
1061#define KVM_MMU_FSL_BOOKE_HV 1
1062
1063struct kvm_config_tlb {
1064 __u64 params;
1065 __u64 array;
1066 __u32 mmu_type;
1067 __u32 array_len;
1068};
1069
1070struct kvm_dirty_tlb {
1071 __u64 bitmap;
1072 __u32 num_dirty;
1073};
1074
1075/* Available with KVM_CAP_ONE_REG */
1076
1077#define KVM_REG_ARCH_MASK 0xff00000000000000ULL
1078#define KVM_REG_GENERIC 0x0000000000000000ULL
1079
1080/*
1081 * Architecture specific registers are to be defined in arch headers and
1082 * ORed with the arch identifier.
1083 */
1084#define KVM_REG_PPC 0x1000000000000000ULL
1085#define KVM_REG_X86 0x2000000000000000ULL
1086#define KVM_REG_IA64 0x3000000000000000ULL
1087#define KVM_REG_ARM 0x4000000000000000ULL
1088#define KVM_REG_S390 0x5000000000000000ULL
1089#define KVM_REG_ARM64 0x6000000000000000ULL
1090#define KVM_REG_MIPS 0x7000000000000000ULL
1091#define KVM_REG_RISCV 0x8000000000000000ULL
1092#define KVM_REG_LOONGARCH 0x9000000000000000ULL
1093
1094#define KVM_REG_SIZE_SHIFT 52
1095#define KVM_REG_SIZE_MASK 0x00f0000000000000ULL
1096
1097#define KVM_REG_SIZE(id) \
1098 (1U << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
1099
1100#define KVM_REG_SIZE_U8 0x0000000000000000ULL
1101#define KVM_REG_SIZE_U16 0x0010000000000000ULL
1102#define KVM_REG_SIZE_U32 0x0020000000000000ULL
1103#define KVM_REG_SIZE_U64 0x0030000000000000ULL
1104#define KVM_REG_SIZE_U128 0x0040000000000000ULL
1105#define KVM_REG_SIZE_U256 0x0050000000000000ULL
1106#define KVM_REG_SIZE_U512 0x0060000000000000ULL
1107#define KVM_REG_SIZE_U1024 0x0070000000000000ULL
1108#define KVM_REG_SIZE_U2048 0x0080000000000000ULL
1109
1110struct kvm_reg_list {
1111 __u64 n; /* number of regs */
1112 __u64 reg[];
1113};
1114
1115struct kvm_one_reg {
1116 __u64 id;
1117 __u64 addr;
1118};
1119
1120#define KVM_MSI_VALID_DEVID (1U << 0)
1121struct kvm_msi {
1122 __u32 address_lo;
1123 __u32 address_hi;
1124 __u32 data;
1125 __u32 flags;
1126 __u32 devid;
1127 __u8 pad[12];
1128};
1129
1130struct kvm_arm_device_addr {
1131 __u64 id;
1132 __u64 addr;
1133};
1134
1135/*
1136 * Device control API, available with KVM_CAP_DEVICE_CTRL
1137 */
1138#define KVM_CREATE_DEVICE_TEST 1
1139
1140struct kvm_create_device {
1141 __u32 type; /* in: KVM_DEV_TYPE_xxx */
1142 __u32 fd; /* out: device handle */
1143 __u32 flags; /* in: KVM_CREATE_DEVICE_xxx */
1144};
1145
1146struct kvm_device_attr {
1147 __u32 flags; /* no flags currently defined */
1148 __u32 group; /* device-defined */
1149 __u64 attr; /* group-defined */
1150 __u64 addr; /* userspace address of attr data */
1151};
1152
1153#define KVM_DEV_VFIO_FILE 1
1154
1155#define KVM_DEV_VFIO_FILE_ADD 1
1156#define KVM_DEV_VFIO_FILE_DEL 2
1157
1158/* KVM_DEV_VFIO_GROUP aliases are for compile time uapi compatibility */
1159#define KVM_DEV_VFIO_GROUP KVM_DEV_VFIO_FILE
1160
1161#define KVM_DEV_VFIO_GROUP_ADD KVM_DEV_VFIO_FILE_ADD
1162#define KVM_DEV_VFIO_GROUP_DEL KVM_DEV_VFIO_FILE_DEL
1163#define KVM_DEV_VFIO_GROUP_SET_SPAPR_TCE 3
1164
1165enum kvm_device_type {
1166 KVM_DEV_TYPE_FSL_MPIC_20 = 1,
1167#define KVM_DEV_TYPE_FSL_MPIC_20 KVM_DEV_TYPE_FSL_MPIC_20
1168 KVM_DEV_TYPE_FSL_MPIC_42,
1169#define KVM_DEV_TYPE_FSL_MPIC_42 KVM_DEV_TYPE_FSL_MPIC_42
1170 KVM_DEV_TYPE_XICS,
1171#define KVM_DEV_TYPE_XICS KVM_DEV_TYPE_XICS
1172 KVM_DEV_TYPE_VFIO,
1173#define KVM_DEV_TYPE_VFIO KVM_DEV_TYPE_VFIO
1174 KVM_DEV_TYPE_ARM_VGIC_V2,
1175#define KVM_DEV_TYPE_ARM_VGIC_V2 KVM_DEV_TYPE_ARM_VGIC_V2
1176 KVM_DEV_TYPE_FLIC,
1177#define KVM_DEV_TYPE_FLIC KVM_DEV_TYPE_FLIC
1178 KVM_DEV_TYPE_ARM_VGIC_V3,
1179#define KVM_DEV_TYPE_ARM_VGIC_V3 KVM_DEV_TYPE_ARM_VGIC_V3
1180 KVM_DEV_TYPE_ARM_VGIC_ITS,
1181#define KVM_DEV_TYPE_ARM_VGIC_ITS KVM_DEV_TYPE_ARM_VGIC_ITS
1182 KVM_DEV_TYPE_XIVE,
1183#define KVM_DEV_TYPE_XIVE KVM_DEV_TYPE_XIVE
1184 KVM_DEV_TYPE_ARM_PV_TIME,
1185#define KVM_DEV_TYPE_ARM_PV_TIME KVM_DEV_TYPE_ARM_PV_TIME
1186 KVM_DEV_TYPE_RISCV_AIA,
1187#define KVM_DEV_TYPE_RISCV_AIA KVM_DEV_TYPE_RISCV_AIA
1188 KVM_DEV_TYPE_LOONGARCH_IPI,
1189#define KVM_DEV_TYPE_LOONGARCH_IPI KVM_DEV_TYPE_LOONGARCH_IPI
1190 KVM_DEV_TYPE_LOONGARCH_EIOINTC,
1191#define KVM_DEV_TYPE_LOONGARCH_EIOINTC KVM_DEV_TYPE_LOONGARCH_EIOINTC
1192 KVM_DEV_TYPE_LOONGARCH_PCHPIC,
1193#define KVM_DEV_TYPE_LOONGARCH_PCHPIC KVM_DEV_TYPE_LOONGARCH_PCHPIC
1194
1195 KVM_DEV_TYPE_MAX,
1196
1197};
1198
1199struct kvm_vfio_spapr_tce {
1200 __s32 groupfd;
1201 __s32 tablefd;
1202};
1203
1204/*
1205 * KVM_CREATE_VCPU receives as a parameter the vcpu slot, and returns
1206 * a vcpu fd.
1207 */
1208#define KVM_CREATE_VCPU _IO(KVMIO, 0x41)
1209#define KVM_GET_DIRTY_LOG _IOW(KVMIO, 0x42, struct kvm_dirty_log)
1210#define KVM_SET_NR_MMU_PAGES _IO(KVMIO, 0x44)
1211#define KVM_GET_NR_MMU_PAGES _IO(KVMIO, 0x45) /* deprecated */
1212#define KVM_SET_USER_MEMORY_REGION _IOW(KVMIO, 0x46, \
1213 struct kvm_userspace_memory_region)
1214#define KVM_SET_TSS_ADDR _IO(KVMIO, 0x47)
1215#define KVM_SET_IDENTITY_MAP_ADDR _IOW(KVMIO, 0x48, __u64)
1216#define KVM_SET_USER_MEMORY_REGION2 _IOW(KVMIO, 0x49, \
1217 struct kvm_userspace_memory_region2)
1218
1219/* enable ucontrol for s390 */
1220#define KVM_S390_UCAS_MAP _IOW(KVMIO, 0x50, struct kvm_s390_ucas_mapping)
1221#define KVM_S390_UCAS_UNMAP _IOW(KVMIO, 0x51, struct kvm_s390_ucas_mapping)
1222#define KVM_S390_VCPU_FAULT _IOW(KVMIO, 0x52, unsigned long)
1223
1224/* Device model IOC */
1225#define KVM_CREATE_IRQCHIP _IO(KVMIO, 0x60)
1226#define KVM_IRQ_LINE _IOW(KVMIO, 0x61, struct kvm_irq_level)
1227#define KVM_GET_IRQCHIP _IOWR(KVMIO, 0x62, struct kvm_irqchip)
1228#define KVM_SET_IRQCHIP _IOR(KVMIO, 0x63, struct kvm_irqchip)
1229#define KVM_CREATE_PIT _IO(KVMIO, 0x64)
1230#define KVM_GET_PIT _IOWR(KVMIO, 0x65, struct kvm_pit_state)
1231#define KVM_SET_PIT _IOR(KVMIO, 0x66, struct kvm_pit_state)
1232#define KVM_IRQ_LINE_STATUS _IOWR(KVMIO, 0x67, struct kvm_irq_level)
1233#define KVM_REGISTER_COALESCED_MMIO \
1234 _IOW(KVMIO, 0x67, struct kvm_coalesced_mmio_zone)
1235#define KVM_UNREGISTER_COALESCED_MMIO \
1236 _IOW(KVMIO, 0x68, struct kvm_coalesced_mmio_zone)
1237#define KVM_SET_GSI_ROUTING _IOW(KVMIO, 0x6a, struct kvm_irq_routing)
1238#define KVM_REINJECT_CONTROL _IO(KVMIO, 0x71)
1239#define KVM_IRQFD _IOW(KVMIO, 0x76, struct kvm_irqfd)
1240#define KVM_CREATE_PIT2 _IOW(KVMIO, 0x77, struct kvm_pit_config)
1241#define KVM_SET_BOOT_CPU_ID _IO(KVMIO, 0x78)
1242#define KVM_IOEVENTFD _IOW(KVMIO, 0x79, struct kvm_ioeventfd)
1243#define KVM_XEN_HVM_CONFIG _IOW(KVMIO, 0x7a, struct kvm_xen_hvm_config)
1244#define KVM_SET_CLOCK _IOW(KVMIO, 0x7b, struct kvm_clock_data)
1245#define KVM_GET_CLOCK _IOR(KVMIO, 0x7c, struct kvm_clock_data)
1246/* Available with KVM_CAP_PIT_STATE2 */
1247#define KVM_GET_PIT2 _IOR(KVMIO, 0x9f, struct kvm_pit_state2)
1248#define KVM_SET_PIT2 _IOW(KVMIO, 0xa0, struct kvm_pit_state2)
1249/* Available with KVM_CAP_PPC_GET_PVINFO */
1250#define KVM_PPC_GET_PVINFO _IOW(KVMIO, 0xa1, struct kvm_ppc_pvinfo)
1251/* Available with KVM_CAP_TSC_CONTROL for a vCPU, or with
1252* KVM_CAP_VM_TSC_CONTROL to set defaults for a VM */
1253#define KVM_SET_TSC_KHZ _IO(KVMIO, 0xa2)
1254#define KVM_GET_TSC_KHZ _IO(KVMIO, 0xa3)
1255/* Available with KVM_CAP_SIGNAL_MSI */
1256#define KVM_SIGNAL_MSI _IOW(KVMIO, 0xa5, struct kvm_msi)
1257/* Available with KVM_CAP_PPC_GET_SMMU_INFO */
1258#define KVM_PPC_GET_SMMU_INFO _IOR(KVMIO, 0xa6, struct kvm_ppc_smmu_info)
1259/* Available with KVM_CAP_PPC_ALLOC_HTAB */
1260#define KVM_PPC_ALLOCATE_HTAB _IOWR(KVMIO, 0xa7, __u32)
1261#define KVM_CREATE_SPAPR_TCE _IOW(KVMIO, 0xa8, struct kvm_create_spapr_tce)
1262#define KVM_CREATE_SPAPR_TCE_64 _IOW(KVMIO, 0xa8, \
1263 struct kvm_create_spapr_tce_64)
1264/* Available with KVM_CAP_RMA */
1265#define KVM_ALLOCATE_RMA _IOR(KVMIO, 0xa9, struct kvm_allocate_rma)
1266/* Available with KVM_CAP_PPC_HTAB_FD */
1267#define KVM_PPC_GET_HTAB_FD _IOW(KVMIO, 0xaa, struct kvm_get_htab_fd)
1268/* Available with KVM_CAP_ARM_SET_DEVICE_ADDR */
1269#define KVM_ARM_SET_DEVICE_ADDR _IOW(KVMIO, 0xab, struct kvm_arm_device_addr)
1270/* Available with KVM_CAP_PPC_RTAS */
1271#define KVM_PPC_RTAS_DEFINE_TOKEN _IOW(KVMIO, 0xac, struct kvm_rtas_token_args)
1272/* Available with KVM_CAP_SPAPR_RESIZE_HPT */
1273#define KVM_PPC_RESIZE_HPT_PREPARE _IOR(KVMIO, 0xad, struct kvm_ppc_resize_hpt)
1274#define KVM_PPC_RESIZE_HPT_COMMIT _IOR(KVMIO, 0xae, struct kvm_ppc_resize_hpt)
1275/* Available with KVM_CAP_PPC_MMU_RADIX or KVM_CAP_PPC_MMU_HASH_V3 */
1276#define KVM_PPC_CONFIGURE_V3_MMU _IOW(KVMIO, 0xaf, struct kvm_ppc_mmuv3_cfg)
1277/* Available with KVM_CAP_PPC_MMU_RADIX */
1278#define KVM_PPC_GET_RMMU_INFO _IOW(KVMIO, 0xb0, struct kvm_ppc_rmmu_info)
1279/* Available with KVM_CAP_PPC_GET_CPU_CHAR */
1280#define KVM_PPC_GET_CPU_CHAR _IOR(KVMIO, 0xb1, struct kvm_ppc_cpu_char)
1281/* Available with KVM_CAP_PMU_EVENT_FILTER */
1282#define KVM_SET_PMU_EVENT_FILTER _IOW(KVMIO, 0xb2, struct kvm_pmu_event_filter)
1283#define KVM_PPC_SVM_OFF _IO(KVMIO, 0xb3)
1284#define KVM_ARM_MTE_COPY_TAGS _IOR(KVMIO, 0xb4, struct kvm_arm_copy_mte_tags)
1285/* Available with KVM_CAP_COUNTER_OFFSET */
1286#define KVM_ARM_SET_COUNTER_OFFSET _IOW(KVMIO, 0xb5, struct kvm_arm_counter_offset)
1287#define KVM_ARM_GET_REG_WRITABLE_MASKS _IOR(KVMIO, 0xb6, struct reg_mask_range)
1288
1289/* ioctl for vm fd */
1290#define KVM_CREATE_DEVICE _IOWR(KVMIO, 0xe0, struct kvm_create_device)
1291
1292/* ioctls for fds returned by KVM_CREATE_DEVICE */
1293#define KVM_SET_DEVICE_ATTR _IOW(KVMIO, 0xe1, struct kvm_device_attr)
1294#define KVM_GET_DEVICE_ATTR _IOW(KVMIO, 0xe2, struct kvm_device_attr)
1295#define KVM_HAS_DEVICE_ATTR _IOW(KVMIO, 0xe3, struct kvm_device_attr)
1296
1297/*
1298 * ioctls for vcpu fds
1299 */
1300#define KVM_RUN _IO(KVMIO, 0x80)
1301#define KVM_GET_REGS _IOR(KVMIO, 0x81, struct kvm_regs)
1302#define KVM_SET_REGS _IOW(KVMIO, 0x82, struct kvm_regs)
1303#define KVM_GET_SREGS _IOR(KVMIO, 0x83, struct kvm_sregs)
1304#define KVM_SET_SREGS _IOW(KVMIO, 0x84, struct kvm_sregs)
1305#define KVM_TRANSLATE _IOWR(KVMIO, 0x85, struct kvm_translation)
1306#define KVM_INTERRUPT _IOW(KVMIO, 0x86, struct kvm_interrupt)
1307#define KVM_GET_MSRS _IOWR(KVMIO, 0x88, struct kvm_msrs)
1308#define KVM_SET_MSRS _IOW(KVMIO, 0x89, struct kvm_msrs)
1309#define KVM_SET_CPUID _IOW(KVMIO, 0x8a, struct kvm_cpuid)
1310#define KVM_SET_SIGNAL_MASK _IOW(KVMIO, 0x8b, struct kvm_signal_mask)
1311#define KVM_GET_FPU _IOR(KVMIO, 0x8c, struct kvm_fpu)
1312#define KVM_SET_FPU _IOW(KVMIO, 0x8d, struct kvm_fpu)
1313#define KVM_GET_LAPIC _IOR(KVMIO, 0x8e, struct kvm_lapic_state)
1314#define KVM_SET_LAPIC _IOW(KVMIO, 0x8f, struct kvm_lapic_state)
1315#define KVM_SET_CPUID2 _IOW(KVMIO, 0x90, struct kvm_cpuid2)
1316#define KVM_GET_CPUID2 _IOWR(KVMIO, 0x91, struct kvm_cpuid2)
1317/* Available with KVM_CAP_VAPIC */
1318#define KVM_TPR_ACCESS_REPORTING _IOWR(KVMIO, 0x92, struct kvm_tpr_access_ctl)
1319/* Available with KVM_CAP_VAPIC */
1320#define KVM_SET_VAPIC_ADDR _IOW(KVMIO, 0x93, struct kvm_vapic_addr)
1321/* valid for virtual machine (for floating interrupt)_and_ vcpu */
1322#define KVM_S390_INTERRUPT _IOW(KVMIO, 0x94, struct kvm_s390_interrupt)
1323/* store status for s390 */
1324#define KVM_S390_STORE_STATUS_NOADDR (-1ul)
1325#define KVM_S390_STORE_STATUS_PREFIXED (-2ul)
1326#define KVM_S390_STORE_STATUS _IOW(KVMIO, 0x95, unsigned long)
1327/* initial ipl psw for s390 */
1328#define KVM_S390_SET_INITIAL_PSW _IOW(KVMIO, 0x96, struct kvm_s390_psw)
1329/* initial reset for s390 */
1330#define KVM_S390_INITIAL_RESET _IO(KVMIO, 0x97)
1331#define KVM_GET_MP_STATE _IOR(KVMIO, 0x98, struct kvm_mp_state)
1332#define KVM_SET_MP_STATE _IOW(KVMIO, 0x99, struct kvm_mp_state)
1333/* Available with KVM_CAP_USER_NMI */
1334#define KVM_NMI _IO(KVMIO, 0x9a)
1335/* Available with KVM_CAP_SET_GUEST_DEBUG */
1336#define KVM_SET_GUEST_DEBUG _IOW(KVMIO, 0x9b, struct kvm_guest_debug)
1337/* MCE for x86 */
1338#define KVM_X86_SETUP_MCE _IOW(KVMIO, 0x9c, __u64)
1339#define KVM_X86_GET_MCE_CAP_SUPPORTED _IOR(KVMIO, 0x9d, __u64)
1340#define KVM_X86_SET_MCE _IOW(KVMIO, 0x9e, struct kvm_x86_mce)
1341/* Available with KVM_CAP_VCPU_EVENTS */
1342#define KVM_GET_VCPU_EVENTS _IOR(KVMIO, 0x9f, struct kvm_vcpu_events)
1343#define KVM_SET_VCPU_EVENTS _IOW(KVMIO, 0xa0, struct kvm_vcpu_events)
1344/* Available with KVM_CAP_DEBUGREGS */
1345#define KVM_GET_DEBUGREGS _IOR(KVMIO, 0xa1, struct kvm_debugregs)
1346#define KVM_SET_DEBUGREGS _IOW(KVMIO, 0xa2, struct kvm_debugregs)
1347/*
1348 * vcpu version available with KVM_CAP_ENABLE_CAP
1349 * vm version available with KVM_CAP_ENABLE_CAP_VM
1350 */
1351#define KVM_ENABLE_CAP _IOW(KVMIO, 0xa3, struct kvm_enable_cap)
1352/* Available with KVM_CAP_XSAVE */
1353#define KVM_GET_XSAVE _IOR(KVMIO, 0xa4, struct kvm_xsave)
1354#define KVM_SET_XSAVE _IOW(KVMIO, 0xa5, struct kvm_xsave)
1355/* Available with KVM_CAP_XCRS */
1356#define KVM_GET_XCRS _IOR(KVMIO, 0xa6, struct kvm_xcrs)
1357#define KVM_SET_XCRS _IOW(KVMIO, 0xa7, struct kvm_xcrs)
1358/* Available with KVM_CAP_SW_TLB */
1359#define KVM_DIRTY_TLB _IOW(KVMIO, 0xaa, struct kvm_dirty_tlb)
1360/* Available with KVM_CAP_ONE_REG */
1361#define KVM_GET_ONE_REG _IOW(KVMIO, 0xab, struct kvm_one_reg)
1362#define KVM_SET_ONE_REG _IOW(KVMIO, 0xac, struct kvm_one_reg)
1363/* VM is being stopped by host */
1364#define KVM_KVMCLOCK_CTRL _IO(KVMIO, 0xad)
1365#define KVM_ARM_VCPU_INIT _IOW(KVMIO, 0xae, struct kvm_vcpu_init)
1366#define KVM_ARM_PREFERRED_TARGET _IOR(KVMIO, 0xaf, struct kvm_vcpu_init)
1367#define KVM_GET_REG_LIST _IOWR(KVMIO, 0xb0, struct kvm_reg_list)
1368/* Available with KVM_CAP_S390_MEM_OP */
1369#define KVM_S390_MEM_OP _IOW(KVMIO, 0xb1, struct kvm_s390_mem_op)
1370/* Available with KVM_CAP_S390_SKEYS */
1371#define KVM_S390_GET_SKEYS _IOW(KVMIO, 0xb2, struct kvm_s390_skeys)
1372#define KVM_S390_SET_SKEYS _IOW(KVMIO, 0xb3, struct kvm_s390_skeys)
1373/* Available with KVM_CAP_S390_INJECT_IRQ */
1374#define KVM_S390_IRQ _IOW(KVMIO, 0xb4, struct kvm_s390_irq)
1375/* Available with KVM_CAP_S390_IRQ_STATE */
1376#define KVM_S390_SET_IRQ_STATE _IOW(KVMIO, 0xb5, struct kvm_s390_irq_state)
1377#define KVM_S390_GET_IRQ_STATE _IOW(KVMIO, 0xb6, struct kvm_s390_irq_state)
1378/* Available with KVM_CAP_X86_SMM */
1379#define KVM_SMI _IO(KVMIO, 0xb7)
1380/* Available with KVM_CAP_S390_CMMA_MIGRATION */
1381#define KVM_S390_GET_CMMA_BITS _IOWR(KVMIO, 0xb8, struct kvm_s390_cmma_log)
1382#define KVM_S390_SET_CMMA_BITS _IOW(KVMIO, 0xb9, struct kvm_s390_cmma_log)
1383/* Memory Encryption Commands */
1384#define KVM_MEMORY_ENCRYPT_OP _IOWR(KVMIO, 0xba, unsigned long)
1385
1386struct kvm_enc_region {
1387 __u64 addr;
1388 __u64 size;
1389};
1390
1391#define KVM_MEMORY_ENCRYPT_REG_REGION _IOR(KVMIO, 0xbb, struct kvm_enc_region)
1392#define KVM_MEMORY_ENCRYPT_UNREG_REGION _IOR(KVMIO, 0xbc, struct kvm_enc_region)
1393
1394/* Available with KVM_CAP_HYPERV_EVENTFD */
1395#define KVM_HYPERV_EVENTFD _IOW(KVMIO, 0xbd, struct kvm_hyperv_eventfd)
1396
1397/* Available with KVM_CAP_NESTED_STATE */
1398#define KVM_GET_NESTED_STATE _IOWR(KVMIO, 0xbe, struct kvm_nested_state)
1399#define KVM_SET_NESTED_STATE _IOW(KVMIO, 0xbf, struct kvm_nested_state)
1400
1401/* Available with KVM_CAP_MANUAL_DIRTY_LOG_PROTECT_2 */
1402#define KVM_CLEAR_DIRTY_LOG _IOWR(KVMIO, 0xc0, struct kvm_clear_dirty_log)
1403
1404/* Available with KVM_CAP_HYPERV_CPUID (vcpu) / KVM_CAP_SYS_HYPERV_CPUID (system) */
1405#define KVM_GET_SUPPORTED_HV_CPUID _IOWR(KVMIO, 0xc1, struct kvm_cpuid2)
1406
1407/* Available with KVM_CAP_ARM_SVE */
1408#define KVM_ARM_VCPU_FINALIZE _IOW(KVMIO, 0xc2, int)
1409
1410/* Available with KVM_CAP_S390_VCPU_RESETS */
1411#define KVM_S390_NORMAL_RESET _IO(KVMIO, 0xc3)
1412#define KVM_S390_CLEAR_RESET _IO(KVMIO, 0xc4)
1413
1414/* Available with KVM_CAP_S390_PROTECTED */
1415#define KVM_S390_PV_COMMAND _IOWR(KVMIO, 0xc5, struct kvm_pv_cmd)
1416
1417/* Available with KVM_CAP_X86_MSR_FILTER */
1418#define KVM_X86_SET_MSR_FILTER _IOW(KVMIO, 0xc6, struct kvm_msr_filter)
1419
1420/* Available with KVM_CAP_DIRTY_LOG_RING */
1421#define KVM_RESET_DIRTY_RINGS _IO(KVMIO, 0xc7)
1422
1423/* Per-VM Xen attributes */
1424#define KVM_XEN_HVM_GET_ATTR _IOWR(KVMIO, 0xc8, struct kvm_xen_hvm_attr)
1425#define KVM_XEN_HVM_SET_ATTR _IOW(KVMIO, 0xc9, struct kvm_xen_hvm_attr)
1426
1427/* Per-vCPU Xen attributes */
1428#define KVM_XEN_VCPU_GET_ATTR _IOWR(KVMIO, 0xca, struct kvm_xen_vcpu_attr)
1429#define KVM_XEN_VCPU_SET_ATTR _IOW(KVMIO, 0xcb, struct kvm_xen_vcpu_attr)
1430
1431/* Available with KVM_CAP_XEN_HVM / KVM_XEN_HVM_CONFIG_EVTCHN_SEND */
1432#define KVM_XEN_HVM_EVTCHN_SEND _IOW(KVMIO, 0xd0, struct kvm_irq_routing_xen_evtchn)
1433
1434#define KVM_GET_SREGS2 _IOR(KVMIO, 0xcc, struct kvm_sregs2)
1435#define KVM_SET_SREGS2 _IOW(KVMIO, 0xcd, struct kvm_sregs2)
1436
1437#define KVM_DIRTY_LOG_MANUAL_PROTECT_ENABLE (1 << 0)
1438#define KVM_DIRTY_LOG_INITIALLY_SET (1 << 1)
1439
1440/*
1441 * Arch needs to define the macro after implementing the dirty ring
1442 * feature. KVM_DIRTY_LOG_PAGE_OFFSET should be defined as the
1443 * starting page offset of the dirty ring structures.
1444 */
1445#ifndef KVM_DIRTY_LOG_PAGE_OFFSET
1446#define KVM_DIRTY_LOG_PAGE_OFFSET 0
1447#endif
1448
1449/*
1450 * KVM dirty GFN flags, defined as:
1451 *
1452 * |---------------+---------------+--------------|
1453 * | bit 1 (reset) | bit 0 (dirty) | Status |
1454 * |---------------+---------------+--------------|
1455 * | 0 | 0 | Invalid GFN |
1456 * | 0 | 1 | Dirty GFN |
1457 * | 1 | X | GFN to reset |
1458 * |---------------+---------------+--------------|
1459 *
1460 * Lifecycle of a dirty GFN goes like:
1461 *
1462 * dirtied harvested reset
1463 * 00 -----------> 01 -------------> 1X -------+
1464 * ^ |
1465 * | |
1466 * +------------------------------------------+
1467 *
1468 * The userspace program is only responsible for the 01->1X state
1469 * conversion after harvesting an entry. Also, it must not skip any
1470 * dirty bits, so that dirty bits are always harvested in sequence.
1471 */
1472#define KVM_DIRTY_GFN_F_DIRTY _BITUL(0)
1473#define KVM_DIRTY_GFN_F_RESET _BITUL(1)
1474#define KVM_DIRTY_GFN_F_MASK 0x3
1475
1476/*
1477 * KVM dirty rings should be mapped at KVM_DIRTY_LOG_PAGE_OFFSET of
1478 * per-vcpu mmaped regions as an array of struct kvm_dirty_gfn. The
1479 * size of the gfn buffer is decided by the first argument when
1480 * enabling KVM_CAP_DIRTY_LOG_RING.
1481 */
1482struct kvm_dirty_gfn {
1483 __u32 flags;
1484 __u32 slot;
1485 __u64 offset;
1486};
1487
1488#define KVM_BUS_LOCK_DETECTION_OFF (1 << 0)
1489#define KVM_BUS_LOCK_DETECTION_EXIT (1 << 1)
1490
1491#define KVM_PMU_CAP_DISABLE (1 << 0)
1492
1493/**
1494 * struct kvm_stats_header - Header of per vm/vcpu binary statistics data.
1495 * @flags: Some extra information for header, always 0 for now.
1496 * @name_size: The size in bytes of the memory which contains statistics
1497 * name string including trailing '\0'. The memory is allocated
1498 * at the send of statistics descriptor.
1499 * @num_desc: The number of statistics the vm or vcpu has.
1500 * @id_offset: The offset of the vm/vcpu stats' id string in the file pointed
1501 * by vm/vcpu stats fd.
1502 * @desc_offset: The offset of the vm/vcpu stats' descriptor block in the file
1503 * pointd by vm/vcpu stats fd.
1504 * @data_offset: The offset of the vm/vcpu stats' data block in the file
1505 * pointed by vm/vcpu stats fd.
1506 *
1507 * This is the header userspace needs to read from stats fd before any other
1508 * readings. It is used by userspace to discover all the information about the
1509 * vm/vcpu's binary statistics.
1510 * Userspace reads this header from the start of the vm/vcpu's stats fd.
1511 */
1512struct kvm_stats_header {
1513 __u32 flags;
1514 __u32 name_size;
1515 __u32 num_desc;
1516 __u32 id_offset;
1517 __u32 desc_offset;
1518 __u32 data_offset;
1519};
1520
1521#define KVM_STATS_TYPE_SHIFT 0
1522#define KVM_STATS_TYPE_MASK (0xF << KVM_STATS_TYPE_SHIFT)
1523#define KVM_STATS_TYPE_CUMULATIVE (0x0 << KVM_STATS_TYPE_SHIFT)
1524#define KVM_STATS_TYPE_INSTANT (0x1 << KVM_STATS_TYPE_SHIFT)
1525#define KVM_STATS_TYPE_PEAK (0x2 << KVM_STATS_TYPE_SHIFT)
1526#define KVM_STATS_TYPE_LINEAR_HIST (0x3 << KVM_STATS_TYPE_SHIFT)
1527#define KVM_STATS_TYPE_LOG_HIST (0x4 << KVM_STATS_TYPE_SHIFT)
1528#define KVM_STATS_TYPE_MAX KVM_STATS_TYPE_LOG_HIST
1529
1530#define KVM_STATS_UNIT_SHIFT 4
1531#define KVM_STATS_UNIT_MASK (0xF << KVM_STATS_UNIT_SHIFT)
1532#define KVM_STATS_UNIT_NONE (0x0 << KVM_STATS_UNIT_SHIFT)
1533#define KVM_STATS_UNIT_BYTES (0x1 << KVM_STATS_UNIT_SHIFT)
1534#define KVM_STATS_UNIT_SECONDS (0x2 << KVM_STATS_UNIT_SHIFT)
1535#define KVM_STATS_UNIT_CYCLES (0x3 << KVM_STATS_UNIT_SHIFT)
1536#define KVM_STATS_UNIT_BOOLEAN (0x4 << KVM_STATS_UNIT_SHIFT)
1537#define KVM_STATS_UNIT_MAX KVM_STATS_UNIT_BOOLEAN
1538
1539#define KVM_STATS_BASE_SHIFT 8
1540#define KVM_STATS_BASE_MASK (0xF << KVM_STATS_BASE_SHIFT)
1541#define KVM_STATS_BASE_POW10 (0x0 << KVM_STATS_BASE_SHIFT)
1542#define KVM_STATS_BASE_POW2 (0x1 << KVM_STATS_BASE_SHIFT)
1543#define KVM_STATS_BASE_MAX KVM_STATS_BASE_POW2
1544
1545/**
1546 * struct kvm_stats_desc - Descriptor of a KVM statistics.
1547 * @flags: Annotations of the stats, like type, unit, etc.
1548 * @exponent: Used together with @flags to determine the unit.
1549 * @size: The number of data items for this stats.
1550 * Every data item is of type __u64.
1551 * @offset: The offset of the stats to the start of stat structure in
1552 * structure kvm or kvm_vcpu.
1553 * @bucket_size: A parameter value used for histogram stats. It is only used
1554 * for linear histogram stats, specifying the size of the bucket;
1555 * @name: The name string for the stats. Its size is indicated by the
1556 * &kvm_stats_header->name_size.
1557 */
1558struct kvm_stats_desc {
1559 __u32 flags;
1560 __s16 exponent;
1561 __u16 size;
1562 __u32 offset;
1563 __u32 bucket_size;
1564 char name[];
1565};
1566
1567#define KVM_GET_STATS_FD _IO(KVMIO, 0xce)
1568
1569/* Available with KVM_CAP_XSAVE2 */
1570#define KVM_GET_XSAVE2 _IOR(KVMIO, 0xcf, struct kvm_xsave)
1571
1572/* Available with KVM_CAP_S390_PROTECTED_DUMP */
1573#define KVM_S390_PV_CPU_COMMAND _IOWR(KVMIO, 0xd0, struct kvm_pv_cmd)
1574
1575/* Available with KVM_CAP_X86_NOTIFY_VMEXIT */
1576#define KVM_X86_NOTIFY_VMEXIT_ENABLED (1ULL << 0)
1577#define KVM_X86_NOTIFY_VMEXIT_USER (1ULL << 1)
1578
1579/* Available with KVM_CAP_S390_ZPCI_OP */
1580#define KVM_S390_ZPCI_OP _IOW(KVMIO, 0xd1, struct kvm_s390_zpci_op)
1581
1582/* Available with KVM_CAP_MEMORY_ATTRIBUTES */
1583#define KVM_SET_MEMORY_ATTRIBUTES _IOW(KVMIO, 0xd2, struct kvm_memory_attributes)
1584
1585struct kvm_memory_attributes {
1586 __u64 address;
1587 __u64 size;
1588 __u64 attributes;
1589 __u64 flags;
1590};
1591
1592#define KVM_MEMORY_ATTRIBUTE_PRIVATE (1ULL << 3)
1593
1594#define KVM_CREATE_GUEST_MEMFD _IOWR(KVMIO, 0xd4, struct kvm_create_guest_memfd)
1595
1596struct kvm_create_guest_memfd {
1597 __u64 size;
1598 __u64 flags;
1599 __u64 reserved[6];
1600};
1601
1602#define KVM_PRE_FAULT_MEMORY _IOWR(KVMIO, 0xd5, struct kvm_pre_fault_memory)
1603
1604struct kvm_pre_fault_memory {
1605 __u64 gpa;
1606 __u64 size;
1607 __u64 flags;
1608 __u64 padding[5];
1609};
1610
1611#endif /* __LINUX_KVM_H */
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git