Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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/stddef.h>
15#include <linux/ioctl.h>
16#include <asm/kvm.h>
17
18#ifdef __KERNEL__
19#include <linux/kvm_types.h>
20#endif
21
22#define KVM_API_VERSION 12
23
24/*
25 * Backwards-compatible definitions.
26 */
27#define __KVM_HAVE_GUEST_DEBUG
28
29/* for KVM_SET_USER_MEMORY_REGION */
30struct kvm_userspace_memory_region {
31 __u32 slot;
32 __u32 flags;
33 __u64 guest_phys_addr;
34 __u64 memory_size; /* bytes */
35 __u64 userspace_addr; /* start of the userspace allocated memory */
36};
37
38/* for KVM_SET_USER_MEMORY_REGION2 */
39struct kvm_userspace_memory_region2 {
40 __u32 slot;
41 __u32 flags;
42 __u64 guest_phys_addr;
43 __u64 memory_size;
44 __u64 userspace_addr;
45 __u64 guest_memfd_offset;
46 __u32 guest_memfd;
47 __u32 pad1;
48 __u64 pad2[14];
49};
50
51/*
52 * The bit 0 ~ bit 15 of kvm_userspace_memory_region::flags are visible for
53 * userspace, other bits are reserved for kvm internal use which are defined
54 * in include/linux/kvm_host.h.
55 */
56#define KVM_MEM_LOG_DIRTY_PAGES (1UL << 0)
57#define KVM_MEM_READONLY (1UL << 1)
58#define KVM_MEM_GUEST_MEMFD (1UL << 2)
59
60/* for KVM_IRQ_LINE */
61struct kvm_irq_level {
62 /*
63 * ACPI gsi notion of irq.
64 * For IA-64 (APIC model) IOAPIC0: irq 0-23; IOAPIC1: irq 24-47..
65 * For X86 (standard AT mode) PIC0/1: irq 0-15. IOAPIC0: 0-23..
66 * For ARM: See Documentation/virt/kvm/api.rst
67 */
68 union {
69 __u32 irq;
70 __s32 status;
71 };
72 __u32 level;
73};
74
75
76struct kvm_irqchip {
77 __u32 chip_id;
78 __u32 pad;
79 union {
80 char dummy[512]; /* reserving space */
81#ifdef __KVM_HAVE_PIT
82 struct kvm_pic_state pic;
83#endif
84#ifdef __KVM_HAVE_IOAPIC
85 struct kvm_ioapic_state ioapic;
86#endif
87 } chip;
88};
89
90/* for KVM_CREATE_PIT2 */
91struct kvm_pit_config {
92 __u32 flags;
93 __u32 pad[15];
94};
95
96#define KVM_PIT_SPEAKER_DUMMY 1
97
98struct kvm_hyperv_exit {
99#define KVM_EXIT_HYPERV_SYNIC 1
100#define KVM_EXIT_HYPERV_HCALL 2
101#define KVM_EXIT_HYPERV_SYNDBG 3
102 __u32 type;
103 __u32 pad1;
104 union {
105 struct {
106 __u32 msr;
107 __u32 pad2;
108 __u64 control;
109 __u64 evt_page;
110 __u64 msg_page;
111 } synic;
112 struct {
113 __u64 input;
114 __u64 result;
115 __u64 params[2];
116 } hcall;
117 struct {
118 __u32 msr;
119 __u32 pad2;
120 __u64 control;
121 __u64 status;
122 __u64 send_page;
123 __u64 recv_page;
124 __u64 pending_page;
125 } syndbg;
126 } u;
127};
128
129struct kvm_xen_exit {
130#define KVM_EXIT_XEN_HCALL 1
131 __u32 type;
132 union {
133 struct {
134 __u32 longmode;
135 __u32 cpl;
136 __u64 input;
137 __u64 result;
138 __u64 params[6];
139 } hcall;
140 } u;
141};
142
143struct kvm_exit_snp_req_certs {
144 __u64 gpa;
145 __u64 npages;
146 __u64 ret;
147};
148
149#define KVM_S390_GET_SKEYS_NONE 1
150#define KVM_S390_SKEYS_MAX 1048576
151
152#define KVM_EXIT_UNKNOWN 0
153#define KVM_EXIT_EXCEPTION 1
154#define KVM_EXIT_IO 2
155#define KVM_EXIT_HYPERCALL 3
156#define KVM_EXIT_DEBUG 4
157#define KVM_EXIT_HLT 5
158#define KVM_EXIT_MMIO 6
159#define KVM_EXIT_IRQ_WINDOW_OPEN 7
160#define KVM_EXIT_SHUTDOWN 8
161#define KVM_EXIT_FAIL_ENTRY 9
162#define KVM_EXIT_INTR 10
163#define KVM_EXIT_SET_TPR 11
164#define KVM_EXIT_TPR_ACCESS 12
165#define KVM_EXIT_S390_SIEIC 13
166#define KVM_EXIT_S390_RESET 14
167#define KVM_EXIT_DCR 15 /* deprecated */
168#define KVM_EXIT_NMI 16
169#define KVM_EXIT_INTERNAL_ERROR 17
170#define KVM_EXIT_OSI 18
171#define KVM_EXIT_PAPR_HCALL 19
172#define KVM_EXIT_S390_UCONTROL 20
173#define KVM_EXIT_WATCHDOG 21
174#define KVM_EXIT_S390_TSCH 22
175#define KVM_EXIT_EPR 23
176#define KVM_EXIT_SYSTEM_EVENT 24
177#define KVM_EXIT_S390_STSI 25
178#define KVM_EXIT_IOAPIC_EOI 26
179#define KVM_EXIT_HYPERV 27
180#define KVM_EXIT_ARM_NISV 28
181#define KVM_EXIT_X86_RDMSR 29
182#define KVM_EXIT_X86_WRMSR 30
183#define KVM_EXIT_DIRTY_RING_FULL 31
184#define KVM_EXIT_AP_RESET_HOLD 32
185#define KVM_EXIT_X86_BUS_LOCK 33
186#define KVM_EXIT_XEN 34
187#define KVM_EXIT_RISCV_SBI 35
188#define KVM_EXIT_RISCV_CSR 36
189#define KVM_EXIT_NOTIFY 37
190#define KVM_EXIT_LOONGARCH_IOCSR 38
191#define KVM_EXIT_MEMORY_FAULT 39
192#define KVM_EXIT_TDX 40
193#define KVM_EXIT_ARM_SEA 41
194#define KVM_EXIT_ARM_LDST64B 42
195#define KVM_EXIT_SNP_REQ_CERTS 43
196
197/* For KVM_EXIT_INTERNAL_ERROR */
198/* Emulate instruction failed. */
199#define KVM_INTERNAL_ERROR_EMULATION 1
200/* Encounter unexpected simultaneous exceptions. */
201#define KVM_INTERNAL_ERROR_SIMUL_EX 2
202/* Encounter unexpected vm-exit due to delivery event. */
203#define KVM_INTERNAL_ERROR_DELIVERY_EV 3
204/* Encounter unexpected vm-exit reason */
205#define KVM_INTERNAL_ERROR_UNEXPECTED_EXIT_REASON 4
206
207/* Flags that describe what fields in emulation_failure hold valid data. */
208#define KVM_INTERNAL_ERROR_EMULATION_FLAG_INSTRUCTION_BYTES (1ULL << 0)
209
210/*
211 * struct kvm_run can be modified by userspace at any time, so KVM must be
212 * careful to avoid TOCTOU bugs. In order to protect KVM, HINT_UNSAFE_IN_KVM()
213 * renames fields in struct kvm_run from <symbol> to <symbol>__unsafe when
214 * compiled into the kernel, ensuring that any use within KVM is obvious and
215 * gets extra scrutiny.
216 */
217#ifdef __KERNEL__
218#define HINT_UNSAFE_IN_KVM(_symbol) _symbol##__unsafe
219#else
220#define HINT_UNSAFE_IN_KVM(_symbol) _symbol
221#endif
222
223/* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */
224struct kvm_run {
225 /* in */
226 __u8 request_interrupt_window;
227 __u8 HINT_UNSAFE_IN_KVM(immediate_exit);
228 __u8 padding1[6];
229
230 /* out */
231 __u32 exit_reason;
232 __u8 ready_for_interrupt_injection;
233 __u8 if_flag;
234 __u16 flags;
235
236 /* in (pre_kvm_run), out (post_kvm_run) */
237 __u64 cr8;
238 __u64 apic_base;
239
240#ifdef __KVM_S390
241 /* the processor status word for s390 */
242 __u64 psw_mask; /* psw upper half */
243 __u64 psw_addr; /* psw lower half */
244#endif
245 union {
246 /* KVM_EXIT_UNKNOWN */
247 struct {
248 __u64 hardware_exit_reason;
249 } hw;
250 /* KVM_EXIT_FAIL_ENTRY */
251 struct {
252 __u64 hardware_entry_failure_reason;
253 __u32 cpu;
254 } fail_entry;
255 /* KVM_EXIT_EXCEPTION */
256 struct {
257 __u32 exception;
258 __u32 error_code;
259 } ex;
260 /* KVM_EXIT_IO */
261 struct {
262#define KVM_EXIT_IO_IN 0
263#define KVM_EXIT_IO_OUT 1
264 __u8 direction;
265 __u8 size; /* bytes */
266 __u16 port;
267 __u32 count;
268 __u64 data_offset; /* relative to kvm_run start */
269 } io;
270 /* KVM_EXIT_DEBUG */
271 struct {
272 struct kvm_debug_exit_arch arch;
273 } debug;
274 /* KVM_EXIT_MMIO */
275 struct {
276 __u64 phys_addr;
277 __u8 data[8];
278 __u32 len;
279 __u8 is_write;
280 } mmio;
281 /* KVM_EXIT_LOONGARCH_IOCSR */
282 struct {
283 __u64 phys_addr;
284 __u8 data[8];
285 __u32 len;
286 __u8 is_write;
287 } iocsr_io;
288 /* KVM_EXIT_HYPERCALL */
289 struct {
290 __u64 nr;
291 __u64 args[6];
292 __u64 ret;
293
294 union {
295#ifndef __KERNEL__
296 __u32 longmode;
297#endif
298 __u64 flags;
299 };
300 } hypercall;
301 /* KVM_EXIT_TPR_ACCESS */
302 struct {
303 __u64 rip;
304 __u32 is_write;
305 __u32 pad;
306 } tpr_access;
307 /* KVM_EXIT_S390_SIEIC */
308 struct {
309 __u8 icptcode;
310 __u16 ipa;
311 __u32 ipb;
312 } s390_sieic;
313 /* KVM_EXIT_S390_RESET */
314 __u64 s390_reset_flags;
315 /* KVM_EXIT_S390_UCONTROL */
316 struct {
317 __u64 trans_exc_code;
318 __u32 pgm_code;
319 } s390_ucontrol;
320 /* KVM_EXIT_DCR (deprecated) */
321 struct {
322 __u32 dcrn;
323 __u32 data;
324 __u8 is_write;
325 } dcr;
326 /* KVM_EXIT_INTERNAL_ERROR */
327 struct {
328 __u32 suberror;
329 /* Available with KVM_CAP_INTERNAL_ERROR_DATA: */
330 __u32 ndata;
331 __u64 data[16];
332 } internal;
333 /*
334 * KVM_INTERNAL_ERROR_EMULATION
335 *
336 * "struct emulation_failure" is an overlay of "struct internal"
337 * that is used for the KVM_INTERNAL_ERROR_EMULATION sub-type of
338 * KVM_EXIT_INTERNAL_ERROR. Note, unlike other internal error
339 * sub-types, this struct is ABI! It also needs to be backwards
340 * compatible with "struct internal". Take special care that
341 * "ndata" is correct, that new fields are enumerated in "flags",
342 * and that each flag enumerates fields that are 64-bit aligned
343 * and sized (so that ndata+internal.data[] is valid/accurate).
344 *
345 * Space beyond the defined fields may be used to store arbitrary
346 * debug information relating to the emulation failure. It is
347 * accounted for in "ndata" but the format is unspecified and is
348 * not represented in "flags". Any such information is *not* ABI!
349 */
350 struct {
351 __u32 suberror;
352 __u32 ndata;
353 __u64 flags;
354 union {
355 struct {
356 __u8 insn_size;
357 __u8 insn_bytes[15];
358 };
359 };
360 /* Arbitrary debug data may follow. */
361 } emulation_failure;
362 /* KVM_EXIT_OSI */
363 struct {
364 __u64 gprs[32];
365 } osi;
366 /* KVM_EXIT_PAPR_HCALL */
367 struct {
368 __u64 nr;
369 __u64 ret;
370 __u64 args[9];
371 } papr_hcall;
372 /* KVM_EXIT_S390_TSCH */
373 struct {
374 __u16 subchannel_id;
375 __u16 subchannel_nr;
376 __u32 io_int_parm;
377 __u32 io_int_word;
378 __u32 ipb;
379 __u8 dequeued;
380 } s390_tsch;
381 /* KVM_EXIT_EPR */
382 struct {
383 __u32 epr;
384 } epr;
385 /* KVM_EXIT_SYSTEM_EVENT */
386 struct {
387#define KVM_SYSTEM_EVENT_SHUTDOWN 1
388#define KVM_SYSTEM_EVENT_RESET 2
389#define KVM_SYSTEM_EVENT_CRASH 3
390#define KVM_SYSTEM_EVENT_WAKEUP 4
391#define KVM_SYSTEM_EVENT_SUSPEND 5
392#define KVM_SYSTEM_EVENT_SEV_TERM 6
393#define KVM_SYSTEM_EVENT_TDX_FATAL 7
394 __u32 type;
395 __u32 ndata;
396 union {
397#ifndef __KERNEL__
398 __u64 flags;
399#endif
400 __u64 data[16];
401 };
402 } system_event;
403 /* KVM_EXIT_S390_STSI */
404 struct {
405 __u64 addr;
406 __u8 ar;
407 __u8 reserved;
408 __u8 fc;
409 __u8 sel1;
410 __u16 sel2;
411 } s390_stsi;
412 /* KVM_EXIT_IOAPIC_EOI */
413 struct {
414 __u8 vector;
415 } eoi;
416 /* KVM_EXIT_HYPERV */
417 struct kvm_hyperv_exit hyperv;
418 /* KVM_EXIT_ARM_NISV / KVM_EXIT_ARM_LDST64B */
419 struct {
420 __u64 esr_iss;
421 __u64 fault_ipa;
422 } arm_nisv;
423 /* KVM_EXIT_X86_RDMSR / KVM_EXIT_X86_WRMSR */
424 struct {
425 __u8 error; /* user -> kernel */
426 __u8 pad[7];
427#define KVM_MSR_EXIT_REASON_INVAL (1 << 0)
428#define KVM_MSR_EXIT_REASON_UNKNOWN (1 << 1)
429#define KVM_MSR_EXIT_REASON_FILTER (1 << 2)
430#define KVM_MSR_EXIT_REASON_VALID_MASK (KVM_MSR_EXIT_REASON_INVAL | \
431 KVM_MSR_EXIT_REASON_UNKNOWN | \
432 KVM_MSR_EXIT_REASON_FILTER)
433 __u32 reason; /* kernel -> user */
434 __u32 index; /* kernel -> user */
435 __u64 data; /* kernel <-> user */
436 } msr;
437 /* KVM_EXIT_XEN */
438 struct kvm_xen_exit xen;
439 /* KVM_EXIT_RISCV_SBI */
440 struct {
441 unsigned long extension_id;
442 unsigned long function_id;
443 unsigned long args[6];
444 unsigned long ret[2];
445 } riscv_sbi;
446 /* KVM_EXIT_RISCV_CSR */
447 struct {
448 unsigned long csr_num;
449 unsigned long new_value;
450 unsigned long write_mask;
451 unsigned long ret_value;
452 } riscv_csr;
453 /* KVM_EXIT_NOTIFY */
454 struct {
455#define KVM_NOTIFY_CONTEXT_INVALID (1 << 0)
456 __u32 flags;
457 } notify;
458 /* KVM_EXIT_MEMORY_FAULT */
459 struct {
460#define KVM_MEMORY_EXIT_FLAG_PRIVATE (1ULL << 3)
461 __u64 flags;
462 __u64 gpa;
463 __u64 size;
464 } memory_fault;
465 /* KVM_EXIT_TDX */
466 struct {
467 __u64 flags;
468 __u64 nr;
469 union {
470 struct {
471 __u64 ret;
472 __u64 data[5];
473 } unknown;
474 struct {
475 __u64 ret;
476 __u64 gpa;
477 __u64 size;
478 } get_quote;
479 struct {
480 __u64 ret;
481 __u64 leaf;
482 __u64 r11, r12, r13, r14;
483 } get_tdvmcall_info;
484 struct {
485 __u64 ret;
486 __u64 vector;
487 } setup_event_notify;
488 };
489 } tdx;
490 /* KVM_EXIT_ARM_SEA */
491 struct {
492#define KVM_EXIT_ARM_SEA_FLAG_GPA_VALID (1ULL << 0)
493 __u64 flags;
494 __u64 esr;
495 __u64 gva;
496 __u64 gpa;
497 } arm_sea;
498 /* KVM_EXIT_SNP_REQ_CERTS */
499 struct kvm_exit_snp_req_certs snp_req_certs;
500 /* Fix the size of the union. */
501 char padding[256];
502 };
503
504 /* 2048 is the size of the char array used to bound/pad the size
505 * of the union that holds sync regs.
506 */
507 #define SYNC_REGS_SIZE_BYTES 2048
508 /*
509 * shared registers between kvm and userspace.
510 * kvm_valid_regs specifies the register classes set by the host
511 * kvm_dirty_regs specified the register classes dirtied by userspace
512 * struct kvm_sync_regs is architecture specific, as well as the
513 * bits for kvm_valid_regs and kvm_dirty_regs
514 */
515 __u64 kvm_valid_regs;
516 __u64 kvm_dirty_regs;
517 union {
518 struct kvm_sync_regs regs;
519 char padding[SYNC_REGS_SIZE_BYTES];
520 } s;
521};
522
523/* for KVM_REGISTER_COALESCED_MMIO / KVM_UNREGISTER_COALESCED_MMIO */
524
525struct kvm_coalesced_mmio_zone {
526 __u64 addr;
527 __u32 size;
528 union {
529 __u32 pad;
530 __u32 pio;
531 };
532};
533
534struct kvm_coalesced_mmio {
535 __u64 phys_addr;
536 __u32 len;
537 union {
538 __u32 pad;
539 __u32 pio;
540 };
541 __u8 data[8];
542};
543
544struct kvm_coalesced_mmio_ring {
545 __u32 first, last;
546 __DECLARE_FLEX_ARRAY(struct kvm_coalesced_mmio, coalesced_mmio);
547};
548
549#define KVM_COALESCED_MMIO_MAX \
550 ((PAGE_SIZE - sizeof(struct kvm_coalesced_mmio_ring)) / \
551 sizeof(struct kvm_coalesced_mmio))
552
553/* for KVM_TRANSLATE */
554struct kvm_translation {
555 /* in */
556 __u64 linear_address;
557
558 /* out */
559 __u64 physical_address;
560 __u8 valid;
561 __u8 writeable;
562 __u8 usermode;
563 __u8 pad[5];
564};
565
566/* for KVM_INTERRUPT */
567struct kvm_interrupt {
568 /* in */
569 __u32 irq;
570};
571
572/* for KVM_GET_DIRTY_LOG */
573struct kvm_dirty_log {
574 __u32 slot;
575 __u32 padding1;
576 union {
577 void __user *dirty_bitmap; /* one bit per page */
578 __u64 padding2;
579 };
580};
581
582/* for KVM_CLEAR_DIRTY_LOG */
583struct kvm_clear_dirty_log {
584 __u32 slot;
585 __u32 num_pages;
586 __u64 first_page;
587 union {
588 void __user *dirty_bitmap; /* one bit per page */
589 __u64 padding2;
590 };
591};
592
593/* for KVM_SET_SIGNAL_MASK */
594struct kvm_signal_mask {
595 __u32 len;
596 __DECLARE_FLEX_ARRAY(__u8, sigset);
597};
598
599/* for KVM_TPR_ACCESS_REPORTING */
600struct kvm_tpr_access_ctl {
601 __u32 enabled;
602 __u32 flags;
603 __u32 reserved[8];
604};
605
606/* for KVM_SET_VAPIC_ADDR */
607struct kvm_vapic_addr {
608 __u64 vapic_addr;
609};
610
611/* for KVM_SET_MP_STATE */
612
613/* not all states are valid on all architectures */
614#define KVM_MP_STATE_RUNNABLE 0
615#define KVM_MP_STATE_UNINITIALIZED 1
616#define KVM_MP_STATE_INIT_RECEIVED 2
617#define KVM_MP_STATE_HALTED 3
618#define KVM_MP_STATE_SIPI_RECEIVED 4
619#define KVM_MP_STATE_STOPPED 5
620#define KVM_MP_STATE_CHECK_STOP 6
621#define KVM_MP_STATE_OPERATING 7
622#define KVM_MP_STATE_LOAD 8
623#define KVM_MP_STATE_AP_RESET_HOLD 9
624#define KVM_MP_STATE_SUSPENDED 10
625
626struct kvm_mp_state {
627 __u32 mp_state;
628};
629
630/* for KVM_SET_GUEST_DEBUG */
631
632#define KVM_GUESTDBG_ENABLE 0x00000001
633#define KVM_GUESTDBG_SINGLESTEP 0x00000002
634
635struct kvm_guest_debug {
636 __u32 control;
637 __u32 pad;
638 struct kvm_guest_debug_arch arch;
639};
640
641enum {
642 kvm_ioeventfd_flag_nr_datamatch,
643 kvm_ioeventfd_flag_nr_pio,
644 kvm_ioeventfd_flag_nr_deassign,
645 kvm_ioeventfd_flag_nr_virtio_ccw_notify,
646 kvm_ioeventfd_flag_nr_fast_mmio,
647 kvm_ioeventfd_flag_nr_max,
648};
649
650#define KVM_IOEVENTFD_FLAG_DATAMATCH (1 << kvm_ioeventfd_flag_nr_datamatch)
651#define KVM_IOEVENTFD_FLAG_PIO (1 << kvm_ioeventfd_flag_nr_pio)
652#define KVM_IOEVENTFD_FLAG_DEASSIGN (1 << kvm_ioeventfd_flag_nr_deassign)
653#define KVM_IOEVENTFD_FLAG_VIRTIO_CCW_NOTIFY \
654 (1 << kvm_ioeventfd_flag_nr_virtio_ccw_notify)
655
656#define KVM_IOEVENTFD_VALID_FLAG_MASK ((1 << kvm_ioeventfd_flag_nr_max) - 1)
657
658struct kvm_ioeventfd {
659 __u64 datamatch;
660 __u64 addr; /* legal pio/mmio address */
661 __u32 len; /* 1, 2, 4, or 8 bytes; or 0 to ignore length */
662 __s32 fd;
663 __u32 flags;
664 __u8 pad[36];
665};
666
667#define KVM_X86_DISABLE_EXITS_MWAIT (1 << 0)
668#define KVM_X86_DISABLE_EXITS_HLT (1 << 1)
669#define KVM_X86_DISABLE_EXITS_PAUSE (1 << 2)
670#define KVM_X86_DISABLE_EXITS_CSTATE (1 << 3)
671#define KVM_X86_DISABLE_EXITS_APERFMPERF (1 << 4)
672
673/* for KVM_ENABLE_CAP */
674struct kvm_enable_cap {
675 /* in */
676 __u32 cap;
677 __u32 flags;
678 __u64 args[4];
679 __u8 pad[64];
680};
681
682#define KVMIO 0xAE
683
684/* machine type bits, to be used as argument to KVM_CREATE_VM */
685#define KVM_VM_S390_UCONTROL 1
686
687/* on ppc, 0 indicate default, 1 should force HV and 2 PR */
688#define KVM_VM_PPC_HV 1
689#define KVM_VM_PPC_PR 2
690
691/* on MIPS, 0 indicates auto, 1 forces VZ ASE, 2 forces trap & emulate */
692#define KVM_VM_MIPS_AUTO 0
693#define KVM_VM_MIPS_VZ 1
694#define KVM_VM_MIPS_TE 2
695
696#define KVM_S390_SIE_PAGE_OFFSET 1
697
698/*
699 * On arm64, machine type can be used to request the physical
700 * address size for the VM. Bits[7-0] are reserved for the guest
701 * PA size shift (i.e, log2(PA_Size)). For backward compatibility,
702 * value 0 implies the default IPA size, 40bits.
703 */
704#define KVM_VM_TYPE_ARM_IPA_SIZE_MASK 0xffULL
705#define KVM_VM_TYPE_ARM_IPA_SIZE(x) \
706 ((x) & KVM_VM_TYPE_ARM_IPA_SIZE_MASK)
707
708#define KVM_VM_TYPE_ARM_PROTECTED (1UL << 31)
709#define KVM_VM_TYPE_ARM_MASK (KVM_VM_TYPE_ARM_IPA_SIZE_MASK | \
710 KVM_VM_TYPE_ARM_PROTECTED)
711
712/*
713 * ioctls for /dev/kvm fds:
714 */
715#define KVM_GET_API_VERSION _IO(KVMIO, 0x00)
716#define KVM_CREATE_VM _IO(KVMIO, 0x01) /* returns a VM fd */
717#define KVM_GET_MSR_INDEX_LIST _IOWR(KVMIO, 0x02, struct kvm_msr_list)
718
719#define KVM_S390_ENABLE_SIE _IO(KVMIO, 0x06)
720/*
721 * Check if a kvm extension is available. Argument is extension number,
722 * return is 1 (yes) or 0 (no, sorry).
723 */
724#define KVM_CHECK_EXTENSION _IO(KVMIO, 0x03)
725/*
726 * Get size for mmap(vcpu_fd)
727 */
728#define KVM_GET_VCPU_MMAP_SIZE _IO(KVMIO, 0x04) /* in bytes */
729#define KVM_GET_SUPPORTED_CPUID _IOWR(KVMIO, 0x05, struct kvm_cpuid2)
730#define KVM_GET_EMULATED_CPUID _IOWR(KVMIO, 0x09, struct kvm_cpuid2)
731#define KVM_GET_MSR_FEATURE_INDEX_LIST _IOWR(KVMIO, 0x0a, struct kvm_msr_list)
732
733/*
734 * Extension capability list.
735 */
736#define KVM_CAP_IRQCHIP 0
737#define KVM_CAP_HLT 1
738#define KVM_CAP_MMU_SHADOW_CACHE_CONTROL 2
739#define KVM_CAP_USER_MEMORY 3
740#define KVM_CAP_SET_TSS_ADDR 4
741#define KVM_CAP_VAPIC 6
742#define KVM_CAP_EXT_CPUID 7
743#define KVM_CAP_CLOCKSOURCE 8
744#define KVM_CAP_NR_VCPUS 9 /* returns recommended max vcpus per vm */
745#define KVM_CAP_NR_MEMSLOTS 10 /* returns max memory slots per vm */
746#define KVM_CAP_PIT 11
747#define KVM_CAP_NOP_IO_DELAY 12
748#define KVM_CAP_PV_MMU 13
749#define KVM_CAP_MP_STATE 14
750#define KVM_CAP_COALESCED_MMIO 15
751#define KVM_CAP_SYNC_MMU 16 /* Changes to host mmap are reflected in guest */
752#define KVM_CAP_IOMMU 18
753/* Bug in KVM_SET_USER_MEMORY_REGION fixed: */
754#define KVM_CAP_DESTROY_MEMORY_REGION_WORKS 21
755#define KVM_CAP_USER_NMI 22
756#define KVM_CAP_SET_GUEST_DEBUG 23
757#ifdef __KVM_HAVE_PIT
758#define KVM_CAP_REINJECT_CONTROL 24
759#endif
760#define KVM_CAP_IRQ_ROUTING 25
761#define KVM_CAP_IRQ_INJECT_STATUS 26
762#define KVM_CAP_ASSIGN_DEV_IRQ 29
763/* Another bug in KVM_SET_USER_MEMORY_REGION fixed: */
764#define KVM_CAP_JOIN_MEMORY_REGIONS_WORKS 30
765#ifdef __KVM_HAVE_MCE
766#define KVM_CAP_MCE 31
767#endif
768#define KVM_CAP_IRQFD 32
769#ifdef __KVM_HAVE_PIT
770#define KVM_CAP_PIT2 33
771#endif
772#define KVM_CAP_SET_BOOT_CPU_ID 34
773#ifdef __KVM_HAVE_PIT_STATE2
774#define KVM_CAP_PIT_STATE2 35
775#endif
776#define KVM_CAP_IOEVENTFD 36
777#define KVM_CAP_SET_IDENTITY_MAP_ADDR 37
778#ifdef __KVM_HAVE_XEN_HVM
779#define KVM_CAP_XEN_HVM 38
780#endif
781#define KVM_CAP_ADJUST_CLOCK 39
782#define KVM_CAP_INTERNAL_ERROR_DATA 40
783#ifdef __KVM_HAVE_VCPU_EVENTS
784#define KVM_CAP_VCPU_EVENTS 41
785#endif
786#define KVM_CAP_S390_PSW 42
787#define KVM_CAP_PPC_SEGSTATE 43
788#define KVM_CAP_HYPERV 44
789#define KVM_CAP_HYPERV_VAPIC 45
790#define KVM_CAP_HYPERV_SPIN 46
791#define KVM_CAP_PCI_SEGMENT 47
792#define KVM_CAP_PPC_PAIRED_SINGLES 48
793#define KVM_CAP_INTR_SHADOW 49
794#ifdef __KVM_HAVE_DEBUGREGS
795#define KVM_CAP_DEBUGREGS 50
796#endif
797#define KVM_CAP_X86_ROBUST_SINGLESTEP 51
798#define KVM_CAP_PPC_OSI 52
799#define KVM_CAP_PPC_UNSET_IRQ 53
800#define KVM_CAP_ENABLE_CAP 54
801#ifdef __KVM_HAVE_XSAVE
802#define KVM_CAP_XSAVE 55
803#endif
804#ifdef __KVM_HAVE_XCRS
805#define KVM_CAP_XCRS 56
806#endif
807#define KVM_CAP_PPC_GET_PVINFO 57
808#define KVM_CAP_PPC_IRQ_LEVEL 58
809#define KVM_CAP_ASYNC_PF 59
810#define KVM_CAP_TSC_CONTROL 60
811#define KVM_CAP_GET_TSC_KHZ 61
812#define KVM_CAP_PPC_BOOKE_SREGS 62
813#define KVM_CAP_SPAPR_TCE 63
814#define KVM_CAP_PPC_SMT 64
815#define KVM_CAP_PPC_RMA 65
816#define KVM_CAP_MAX_VCPUS 66 /* returns max vcpus per vm */
817#define KVM_CAP_PPC_HIOR 67
818#define KVM_CAP_PPC_PAPR 68
819#define KVM_CAP_SW_TLB 69
820#define KVM_CAP_ONE_REG 70
821#define KVM_CAP_S390_GMAP 71
822#define KVM_CAP_TSC_DEADLINE_TIMER 72
823#define KVM_CAP_S390_UCONTROL 73
824#define KVM_CAP_SYNC_REGS 74
825#define KVM_CAP_PCI_2_3 75
826#define KVM_CAP_KVMCLOCK_CTRL 76
827#define KVM_CAP_SIGNAL_MSI 77
828#define KVM_CAP_PPC_GET_SMMU_INFO 78
829#define KVM_CAP_S390_COW 79
830#define KVM_CAP_PPC_ALLOC_HTAB 80
831#define KVM_CAP_READONLY_MEM 81
832#define KVM_CAP_IRQFD_RESAMPLE 82
833#define KVM_CAP_PPC_BOOKE_WATCHDOG 83
834#define KVM_CAP_PPC_HTAB_FD 84
835#define KVM_CAP_S390_CSS_SUPPORT 85
836#define KVM_CAP_PPC_EPR 86
837#define KVM_CAP_ARM_PSCI 87
838#define KVM_CAP_ARM_SET_DEVICE_ADDR 88
839#define KVM_CAP_DEVICE_CTRL 89
840#define KVM_CAP_IRQ_MPIC 90
841#define KVM_CAP_PPC_RTAS 91
842#define KVM_CAP_IRQ_XICS 92
843#define KVM_CAP_ARM_EL1_32BIT 93
844#define KVM_CAP_SPAPR_MULTITCE 94
845#define KVM_CAP_EXT_EMUL_CPUID 95
846#define KVM_CAP_HYPERV_TIME 96
847#define KVM_CAP_IOAPIC_POLARITY_IGNORED 97
848#define KVM_CAP_ENABLE_CAP_VM 98
849#define KVM_CAP_S390_IRQCHIP 99
850#define KVM_CAP_IOEVENTFD_NO_LENGTH 100
851#define KVM_CAP_VM_ATTRIBUTES 101
852#define KVM_CAP_ARM_PSCI_0_2 102
853#define KVM_CAP_PPC_FIXUP_HCALL 103
854#define KVM_CAP_PPC_ENABLE_HCALL 104
855#define KVM_CAP_CHECK_EXTENSION_VM 105
856#define KVM_CAP_S390_USER_SIGP 106
857#define KVM_CAP_S390_VECTOR_REGISTERS 107
858#define KVM_CAP_S390_MEM_OP 108
859#define KVM_CAP_S390_USER_STSI 109
860#define KVM_CAP_S390_SKEYS 110
861#define KVM_CAP_MIPS_FPU 111
862#define KVM_CAP_MIPS_MSA 112
863#define KVM_CAP_S390_INJECT_IRQ 113
864#define KVM_CAP_S390_IRQ_STATE 114
865#define KVM_CAP_PPC_HWRNG 115
866#define KVM_CAP_DISABLE_QUIRKS 116
867#define KVM_CAP_X86_SMM 117
868#define KVM_CAP_MULTI_ADDRESS_SPACE 118
869#define KVM_CAP_GUEST_DEBUG_HW_BPS 119
870#define KVM_CAP_GUEST_DEBUG_HW_WPS 120
871#define KVM_CAP_SPLIT_IRQCHIP 121
872#define KVM_CAP_IOEVENTFD_ANY_LENGTH 122
873#define KVM_CAP_HYPERV_SYNIC 123
874#define KVM_CAP_S390_RI 124
875#define KVM_CAP_SPAPR_TCE_64 125
876#define KVM_CAP_ARM_PMU_V3 126
877#define KVM_CAP_VCPU_ATTRIBUTES 127
878#define KVM_CAP_MAX_VCPU_ID 128
879#define KVM_CAP_X2APIC_API 129
880#define KVM_CAP_S390_USER_INSTR0 130
881#define KVM_CAP_MSI_DEVID 131
882#define KVM_CAP_PPC_HTM 132
883#define KVM_CAP_SPAPR_RESIZE_HPT 133
884#define KVM_CAP_PPC_MMU_RADIX 134
885#define KVM_CAP_PPC_MMU_HASH_V3 135
886#define KVM_CAP_IMMEDIATE_EXIT 136
887#define KVM_CAP_MIPS_VZ 137
888#define KVM_CAP_MIPS_TE 138
889#define KVM_CAP_MIPS_64BIT 139
890#define KVM_CAP_S390_GS 140
891#define KVM_CAP_S390_AIS 141
892#define KVM_CAP_SPAPR_TCE_VFIO 142
893#define KVM_CAP_X86_DISABLE_EXITS 143
894#define KVM_CAP_ARM_USER_IRQ 144
895#define KVM_CAP_S390_CMMA_MIGRATION 145
896#define KVM_CAP_PPC_FWNMI 146
897#define KVM_CAP_PPC_SMT_POSSIBLE 147
898#define KVM_CAP_HYPERV_SYNIC2 148
899#define KVM_CAP_HYPERV_VP_INDEX 149
900#define KVM_CAP_S390_AIS_MIGRATION 150
901#define KVM_CAP_PPC_GET_CPU_CHAR 151
902#define KVM_CAP_S390_BPB 152
903#define KVM_CAP_GET_MSR_FEATURES 153
904#define KVM_CAP_HYPERV_EVENTFD 154
905#define KVM_CAP_HYPERV_TLBFLUSH 155
906#define KVM_CAP_S390_HPAGE_1M 156
907#define KVM_CAP_NESTED_STATE 157
908#define KVM_CAP_ARM_INJECT_SERROR_ESR 158
909#define KVM_CAP_MSR_PLATFORM_INFO 159
910#define KVM_CAP_PPC_NESTED_HV 160
911#define KVM_CAP_HYPERV_SEND_IPI 161
912#define KVM_CAP_COALESCED_PIO 162
913#define KVM_CAP_HYPERV_ENLIGHTENED_VMCS 163
914#define KVM_CAP_EXCEPTION_PAYLOAD 164
915#define KVM_CAP_ARM_VM_IPA_SIZE 165
916#define KVM_CAP_MANUAL_DIRTY_LOG_PROTECT 166 /* Obsolete */
917#define KVM_CAP_HYPERV_CPUID 167
918#define KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2 168
919#define KVM_CAP_PPC_IRQ_XIVE 169
920#define KVM_CAP_ARM_SVE 170
921#define KVM_CAP_ARM_PTRAUTH_ADDRESS 171
922#define KVM_CAP_ARM_PTRAUTH_GENERIC 172
923#define KVM_CAP_PMU_EVENT_FILTER 173
924#define KVM_CAP_ARM_IRQ_LINE_LAYOUT_2 174
925#define KVM_CAP_HYPERV_DIRECT_TLBFLUSH 175
926#define KVM_CAP_PPC_GUEST_DEBUG_SSTEP 176
927#define KVM_CAP_ARM_NISV_TO_USER 177
928#define KVM_CAP_ARM_INJECT_EXT_DABT 178
929#define KVM_CAP_S390_VCPU_RESETS 179
930#define KVM_CAP_S390_PROTECTED 180
931#define KVM_CAP_PPC_SECURE_GUEST 181
932#define KVM_CAP_HALT_POLL 182
933#define KVM_CAP_ASYNC_PF_INT 183
934#define KVM_CAP_LAST_CPU 184
935#define KVM_CAP_SMALLER_MAXPHYADDR 185
936#define KVM_CAP_S390_DIAG318 186
937#define KVM_CAP_STEAL_TIME 187
938#define KVM_CAP_X86_USER_SPACE_MSR 188
939#define KVM_CAP_X86_MSR_FILTER 189
940#define KVM_CAP_ENFORCE_PV_FEATURE_CPUID 190
941#define KVM_CAP_SYS_HYPERV_CPUID 191
942#define KVM_CAP_DIRTY_LOG_RING 192
943#define KVM_CAP_X86_BUS_LOCK_EXIT 193
944#define KVM_CAP_PPC_DAWR1 194
945#define KVM_CAP_SET_GUEST_DEBUG2 195
946#define KVM_CAP_SGX_ATTRIBUTE 196
947#define KVM_CAP_VM_COPY_ENC_CONTEXT_FROM 197
948#define KVM_CAP_PTP_KVM 198
949#define KVM_CAP_HYPERV_ENFORCE_CPUID 199
950#define KVM_CAP_SREGS2 200
951#define KVM_CAP_EXIT_HYPERCALL 201
952#define KVM_CAP_PPC_RPT_INVALIDATE 202
953#define KVM_CAP_BINARY_STATS_FD 203
954#define KVM_CAP_EXIT_ON_EMULATION_FAILURE 204
955#define KVM_CAP_ARM_MTE 205
956#define KVM_CAP_VM_MOVE_ENC_CONTEXT_FROM 206
957#define KVM_CAP_VM_GPA_BITS 207
958#define KVM_CAP_XSAVE2 208
959#define KVM_CAP_SYS_ATTRIBUTES 209
960#define KVM_CAP_PPC_AIL_MODE_3 210
961#define KVM_CAP_S390_MEM_OP_EXTENSION 211
962#define KVM_CAP_PMU_CAPABILITY 212
963#define KVM_CAP_DISABLE_QUIRKS2 213
964#define KVM_CAP_VM_TSC_CONTROL 214
965#define KVM_CAP_SYSTEM_EVENT_DATA 215
966#define KVM_CAP_ARM_SYSTEM_SUSPEND 216
967#define KVM_CAP_S390_PROTECTED_DUMP 217
968#define KVM_CAP_X86_TRIPLE_FAULT_EVENT 218
969#define KVM_CAP_X86_NOTIFY_VMEXIT 219
970#define KVM_CAP_VM_DISABLE_NX_HUGE_PAGES 220
971#define KVM_CAP_S390_ZPCI_OP 221
972#define KVM_CAP_S390_CPU_TOPOLOGY 222
973#define KVM_CAP_DIRTY_LOG_RING_ACQ_REL 223
974#define KVM_CAP_S390_PROTECTED_ASYNC_DISABLE 224
975#define KVM_CAP_DIRTY_LOG_RING_WITH_BITMAP 225
976#define KVM_CAP_PMU_EVENT_MASKED_EVENTS 226
977#define KVM_CAP_COUNTER_OFFSET 227
978#define KVM_CAP_ARM_EAGER_SPLIT_CHUNK_SIZE 228
979#define KVM_CAP_ARM_SUPPORTED_BLOCK_SIZES 229
980#define KVM_CAP_ARM_SUPPORTED_REG_MASK_RANGES 230
981#define KVM_CAP_USER_MEMORY2 231
982#define KVM_CAP_MEMORY_FAULT_INFO 232
983#define KVM_CAP_MEMORY_ATTRIBUTES 233
984#define KVM_CAP_GUEST_MEMFD 234
985#define KVM_CAP_VM_TYPES 235
986#define KVM_CAP_PRE_FAULT_MEMORY 236
987#define KVM_CAP_X86_APIC_BUS_CYCLES_NS 237
988#define KVM_CAP_X86_GUEST_MODE 238
989#define KVM_CAP_ARM_WRITABLE_IMP_ID_REGS 239
990#define KVM_CAP_ARM_EL2 240
991#define KVM_CAP_ARM_EL2_E2H0 241
992#define KVM_CAP_RISCV_MP_STATE_RESET 242
993#define KVM_CAP_ARM_CACHEABLE_PFNMAP_SUPPORTED 243
994#define KVM_CAP_GUEST_MEMFD_FLAGS 244
995#define KVM_CAP_ARM_SEA_TO_USER 245
996#define KVM_CAP_S390_USER_OPEREXEC 246
997#define KVM_CAP_S390_KEYOP 247
998#define KVM_CAP_S390_VSIE_ESAMODE 248
999
1000struct kvm_irq_routing_irqchip {
1001 __u32 irqchip;
1002 __u32 pin;
1003};
1004
1005struct kvm_irq_routing_msi {
1006 __u32 address_lo;
1007 __u32 address_hi;
1008 __u32 data;
1009 union {
1010 __u32 pad;
1011 __u32 devid;
1012 };
1013};
1014
1015struct kvm_irq_routing_s390_adapter {
1016 __u64 ind_addr;
1017 __u64 summary_addr;
1018 __u64 ind_offset;
1019 __u32 summary_offset;
1020 __u32 adapter_id;
1021};
1022
1023struct kvm_irq_routing_hv_sint {
1024 __u32 vcpu;
1025 __u32 sint;
1026};
1027
1028struct kvm_irq_routing_xen_evtchn {
1029 __u32 port;
1030 __u32 vcpu;
1031 __u32 priority;
1032};
1033
1034#define KVM_IRQ_ROUTING_XEN_EVTCHN_PRIO_2LEVEL ((__u32)(-1))
1035
1036/* gsi routing entry types */
1037#define KVM_IRQ_ROUTING_IRQCHIP 1
1038#define KVM_IRQ_ROUTING_MSI 2
1039#define KVM_IRQ_ROUTING_S390_ADAPTER 3
1040#define KVM_IRQ_ROUTING_HV_SINT 4
1041#define KVM_IRQ_ROUTING_XEN_EVTCHN 5
1042
1043struct kvm_irq_routing_entry {
1044 __u32 gsi;
1045 __u32 type;
1046 __u32 flags;
1047 __u32 pad;
1048 union {
1049 struct kvm_irq_routing_irqchip irqchip;
1050 struct kvm_irq_routing_msi msi;
1051 struct kvm_irq_routing_s390_adapter adapter;
1052 struct kvm_irq_routing_hv_sint hv_sint;
1053 struct kvm_irq_routing_xen_evtchn xen_evtchn;
1054 __u32 pad[8];
1055 } u;
1056};
1057
1058struct kvm_irq_routing {
1059 __u32 nr;
1060 __u32 flags;
1061 __DECLARE_FLEX_ARRAY(struct kvm_irq_routing_entry, entries);
1062};
1063
1064#define KVM_IRQFD_FLAG_DEASSIGN (1 << 0)
1065/*
1066 * Available with KVM_CAP_IRQFD_RESAMPLE
1067 *
1068 * KVM_IRQFD_FLAG_RESAMPLE indicates resamplefd is valid and specifies
1069 * the irqfd to operate in resampling mode for level triggered interrupt
1070 * emulation. See Documentation/virt/kvm/api.rst.
1071 */
1072#define KVM_IRQFD_FLAG_RESAMPLE (1 << 1)
1073
1074struct kvm_irqfd {
1075 __u32 fd;
1076 __u32 gsi;
1077 __u32 flags;
1078 __u32 resamplefd;
1079 __u8 pad[16];
1080};
1081
1082/* For KVM_CAP_ADJUST_CLOCK */
1083
1084/* Do not use 1, KVM_CHECK_EXTENSION returned it before we had flags. */
1085#define KVM_CLOCK_TSC_STABLE 2
1086#define KVM_CLOCK_REALTIME (1 << 2)
1087#define KVM_CLOCK_HOST_TSC (1 << 3)
1088
1089struct kvm_clock_data {
1090 __u64 clock;
1091 __u32 flags;
1092 __u32 pad0;
1093 __u64 realtime;
1094 __u64 host_tsc;
1095 __u32 pad[4];
1096};
1097
1098/* For KVM_CAP_SW_TLB */
1099
1100#define KVM_MMU_FSL_BOOKE_NOHV 0
1101#define KVM_MMU_FSL_BOOKE_HV 1
1102
1103struct kvm_config_tlb {
1104 __u64 params;
1105 __u64 array;
1106 __u32 mmu_type;
1107 __u32 array_len;
1108};
1109
1110struct kvm_dirty_tlb {
1111 __u64 bitmap;
1112 __u32 num_dirty;
1113};
1114
1115/* Available with KVM_CAP_ONE_REG */
1116
1117#define KVM_REG_ARCH_MASK 0xff00000000000000ULL
1118#define KVM_REG_GENERIC 0x0000000000000000ULL
1119
1120/*
1121 * Architecture specific registers are to be defined in arch headers and
1122 * ORed with the arch identifier.
1123 */
1124#define KVM_REG_PPC 0x1000000000000000ULL
1125#define KVM_REG_X86 0x2000000000000000ULL
1126#define KVM_REG_IA64 0x3000000000000000ULL
1127#define KVM_REG_ARM 0x4000000000000000ULL
1128#define KVM_REG_S390 0x5000000000000000ULL
1129#define KVM_REG_ARM64 0x6000000000000000ULL
1130#define KVM_REG_MIPS 0x7000000000000000ULL
1131#define KVM_REG_RISCV 0x8000000000000000ULL
1132#define KVM_REG_LOONGARCH 0x9000000000000000ULL
1133
1134#define KVM_REG_SIZE_SHIFT 52
1135#define KVM_REG_SIZE_MASK 0x00f0000000000000ULL
1136
1137#define KVM_REG_SIZE(id) \
1138 (1U << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
1139
1140#define KVM_REG_SIZE_U8 0x0000000000000000ULL
1141#define KVM_REG_SIZE_U16 0x0010000000000000ULL
1142#define KVM_REG_SIZE_U32 0x0020000000000000ULL
1143#define KVM_REG_SIZE_U64 0x0030000000000000ULL
1144#define KVM_REG_SIZE_U128 0x0040000000000000ULL
1145#define KVM_REG_SIZE_U256 0x0050000000000000ULL
1146#define KVM_REG_SIZE_U512 0x0060000000000000ULL
1147#define KVM_REG_SIZE_U1024 0x0070000000000000ULL
1148#define KVM_REG_SIZE_U2048 0x0080000000000000ULL
1149
1150struct kvm_reg_list {
1151 __u64 n; /* number of regs */
1152 __DECLARE_FLEX_ARRAY(__u64, reg);
1153};
1154
1155struct kvm_one_reg {
1156 __u64 id;
1157 __u64 addr;
1158};
1159
1160#define KVM_MSI_VALID_DEVID (1U << 0)
1161struct kvm_msi {
1162 __u32 address_lo;
1163 __u32 address_hi;
1164 __u32 data;
1165 __u32 flags;
1166 __u32 devid;
1167 __u8 pad[12];
1168};
1169
1170struct kvm_arm_device_addr {
1171 __u64 id;
1172 __u64 addr;
1173};
1174
1175/*
1176 * Device control API, available with KVM_CAP_DEVICE_CTRL
1177 */
1178#define KVM_CREATE_DEVICE_TEST 1
1179
1180struct kvm_create_device {
1181 __u32 type; /* in: KVM_DEV_TYPE_xxx */
1182 __u32 fd; /* out: device handle */
1183 __u32 flags; /* in: KVM_CREATE_DEVICE_xxx */
1184};
1185
1186struct kvm_device_attr {
1187 __u32 flags; /* no flags currently defined */
1188 __u32 group; /* device-defined */
1189 __u64 attr; /* group-defined */
1190 __u64 addr; /* userspace address of attr data */
1191};
1192
1193#define KVM_DEV_VFIO_FILE 1
1194
1195#define KVM_DEV_VFIO_FILE_ADD 1
1196#define KVM_DEV_VFIO_FILE_DEL 2
1197
1198/* KVM_DEV_VFIO_GROUP aliases are for compile time uapi compatibility */
1199#define KVM_DEV_VFIO_GROUP KVM_DEV_VFIO_FILE
1200
1201#define KVM_DEV_VFIO_GROUP_ADD KVM_DEV_VFIO_FILE_ADD
1202#define KVM_DEV_VFIO_GROUP_DEL KVM_DEV_VFIO_FILE_DEL
1203#define KVM_DEV_VFIO_GROUP_SET_SPAPR_TCE 3
1204
1205enum kvm_device_type {
1206 KVM_DEV_TYPE_FSL_MPIC_20 = 1,
1207#define KVM_DEV_TYPE_FSL_MPIC_20 KVM_DEV_TYPE_FSL_MPIC_20
1208 KVM_DEV_TYPE_FSL_MPIC_42,
1209#define KVM_DEV_TYPE_FSL_MPIC_42 KVM_DEV_TYPE_FSL_MPIC_42
1210 KVM_DEV_TYPE_XICS,
1211#define KVM_DEV_TYPE_XICS KVM_DEV_TYPE_XICS
1212 KVM_DEV_TYPE_VFIO,
1213#define KVM_DEV_TYPE_VFIO KVM_DEV_TYPE_VFIO
1214 KVM_DEV_TYPE_ARM_VGIC_V2,
1215#define KVM_DEV_TYPE_ARM_VGIC_V2 KVM_DEV_TYPE_ARM_VGIC_V2
1216 KVM_DEV_TYPE_FLIC,
1217#define KVM_DEV_TYPE_FLIC KVM_DEV_TYPE_FLIC
1218 KVM_DEV_TYPE_ARM_VGIC_V3,
1219#define KVM_DEV_TYPE_ARM_VGIC_V3 KVM_DEV_TYPE_ARM_VGIC_V3
1220 KVM_DEV_TYPE_ARM_VGIC_ITS,
1221#define KVM_DEV_TYPE_ARM_VGIC_ITS KVM_DEV_TYPE_ARM_VGIC_ITS
1222 KVM_DEV_TYPE_XIVE,
1223#define KVM_DEV_TYPE_XIVE KVM_DEV_TYPE_XIVE
1224 KVM_DEV_TYPE_ARM_PV_TIME,
1225#define KVM_DEV_TYPE_ARM_PV_TIME KVM_DEV_TYPE_ARM_PV_TIME
1226 KVM_DEV_TYPE_RISCV_AIA,
1227#define KVM_DEV_TYPE_RISCV_AIA KVM_DEV_TYPE_RISCV_AIA
1228 KVM_DEV_TYPE_LOONGARCH_IPI,
1229#define KVM_DEV_TYPE_LOONGARCH_IPI KVM_DEV_TYPE_LOONGARCH_IPI
1230 KVM_DEV_TYPE_LOONGARCH_EIOINTC,
1231#define KVM_DEV_TYPE_LOONGARCH_EIOINTC KVM_DEV_TYPE_LOONGARCH_EIOINTC
1232 KVM_DEV_TYPE_LOONGARCH_PCHPIC,
1233#define KVM_DEV_TYPE_LOONGARCH_PCHPIC KVM_DEV_TYPE_LOONGARCH_PCHPIC
1234 KVM_DEV_TYPE_LOONGARCH_DMSINTC,
1235#define KVM_DEV_TYPE_LOONGARCH_DMSINTC KVM_DEV_TYPE_LOONGARCH_DMSINTC
1236 KVM_DEV_TYPE_ARM_VGIC_V5,
1237#define KVM_DEV_TYPE_ARM_VGIC_V5 KVM_DEV_TYPE_ARM_VGIC_V5
1238
1239 KVM_DEV_TYPE_MAX,
1240
1241};
1242
1243struct kvm_vfio_spapr_tce {
1244 __s32 groupfd;
1245 __s32 tablefd;
1246};
1247
1248#define KVM_S390_KEYOP_ISKE 0x01
1249#define KVM_S390_KEYOP_RRBE 0x02
1250#define KVM_S390_KEYOP_SSKE 0x03
1251struct kvm_s390_keyop {
1252 __u64 guest_addr;
1253 __u8 key;
1254 __u8 operation;
1255 __u8 pad[6];
1256};
1257
1258/*
1259 * KVM_CREATE_VCPU receives as a parameter the vcpu slot, and returns
1260 * a vcpu fd.
1261 */
1262#define KVM_CREATE_VCPU _IO(KVMIO, 0x41)
1263#define KVM_GET_DIRTY_LOG _IOW(KVMIO, 0x42, struct kvm_dirty_log)
1264#define KVM_SET_NR_MMU_PAGES _IO(KVMIO, 0x44)
1265#define KVM_GET_NR_MMU_PAGES _IO(KVMIO, 0x45) /* deprecated */
1266#define KVM_SET_USER_MEMORY_REGION _IOW(KVMIO, 0x46, \
1267 struct kvm_userspace_memory_region)
1268#define KVM_SET_TSS_ADDR _IO(KVMIO, 0x47)
1269#define KVM_SET_IDENTITY_MAP_ADDR _IOW(KVMIO, 0x48, __u64)
1270#define KVM_SET_USER_MEMORY_REGION2 _IOW(KVMIO, 0x49, \
1271 struct kvm_userspace_memory_region2)
1272
1273/* enable ucontrol for s390 */
1274#define KVM_S390_UCAS_MAP _IOW(KVMIO, 0x50, struct kvm_s390_ucas_mapping)
1275#define KVM_S390_UCAS_UNMAP _IOW(KVMIO, 0x51, struct kvm_s390_ucas_mapping)
1276#define KVM_S390_VCPU_FAULT _IOW(KVMIO, 0x52, unsigned long)
1277#define KVM_S390_KEYOP _IOWR(KVMIO, 0x53, struct kvm_s390_keyop)
1278
1279/* Device model IOC */
1280#define KVM_CREATE_IRQCHIP _IO(KVMIO, 0x60)
1281#define KVM_IRQ_LINE _IOW(KVMIO, 0x61, struct kvm_irq_level)
1282#define KVM_GET_IRQCHIP _IOWR(KVMIO, 0x62, struct kvm_irqchip)
1283#define KVM_SET_IRQCHIP _IOR(KVMIO, 0x63, struct kvm_irqchip)
1284#define KVM_CREATE_PIT _IO(KVMIO, 0x64)
1285#define KVM_GET_PIT _IOWR(KVMIO, 0x65, struct kvm_pit_state)
1286#define KVM_SET_PIT _IOR(KVMIO, 0x66, struct kvm_pit_state)
1287#define KVM_IRQ_LINE_STATUS _IOWR(KVMIO, 0x67, struct kvm_irq_level)
1288#define KVM_REGISTER_COALESCED_MMIO \
1289 _IOW(KVMIO, 0x67, struct kvm_coalesced_mmio_zone)
1290#define KVM_UNREGISTER_COALESCED_MMIO \
1291 _IOW(KVMIO, 0x68, struct kvm_coalesced_mmio_zone)
1292#define KVM_SET_GSI_ROUTING _IOW(KVMIO, 0x6a, struct kvm_irq_routing)
1293#define KVM_REINJECT_CONTROL _IO(KVMIO, 0x71)
1294#define KVM_IRQFD _IOW(KVMIO, 0x76, struct kvm_irqfd)
1295#define KVM_CREATE_PIT2 _IOW(KVMIO, 0x77, struct kvm_pit_config)
1296#define KVM_SET_BOOT_CPU_ID _IO(KVMIO, 0x78)
1297#define KVM_IOEVENTFD _IOW(KVMIO, 0x79, struct kvm_ioeventfd)
1298#define KVM_XEN_HVM_CONFIG _IOW(KVMIO, 0x7a, struct kvm_xen_hvm_config)
1299#define KVM_SET_CLOCK _IOW(KVMIO, 0x7b, struct kvm_clock_data)
1300#define KVM_GET_CLOCK _IOR(KVMIO, 0x7c, struct kvm_clock_data)
1301/* Available with KVM_CAP_PIT_STATE2 */
1302#define KVM_GET_PIT2 _IOR(KVMIO, 0x9f, struct kvm_pit_state2)
1303#define KVM_SET_PIT2 _IOW(KVMIO, 0xa0, struct kvm_pit_state2)
1304/* Available with KVM_CAP_PPC_GET_PVINFO */
1305#define KVM_PPC_GET_PVINFO _IOW(KVMIO, 0xa1, struct kvm_ppc_pvinfo)
1306/* Available with KVM_CAP_TSC_CONTROL for a vCPU, or with
1307* KVM_CAP_VM_TSC_CONTROL to set defaults for a VM */
1308#define KVM_SET_TSC_KHZ _IO(KVMIO, 0xa2)
1309#define KVM_GET_TSC_KHZ _IO(KVMIO, 0xa3)
1310/* Available with KVM_CAP_SIGNAL_MSI */
1311#define KVM_SIGNAL_MSI _IOW(KVMIO, 0xa5, struct kvm_msi)
1312/* Available with KVM_CAP_PPC_GET_SMMU_INFO */
1313#define KVM_PPC_GET_SMMU_INFO _IOR(KVMIO, 0xa6, struct kvm_ppc_smmu_info)
1314/* Available with KVM_CAP_PPC_ALLOC_HTAB */
1315#define KVM_PPC_ALLOCATE_HTAB _IOWR(KVMIO, 0xa7, __u32)
1316#define KVM_CREATE_SPAPR_TCE _IOW(KVMIO, 0xa8, struct kvm_create_spapr_tce)
1317#define KVM_CREATE_SPAPR_TCE_64 _IOW(KVMIO, 0xa8, \
1318 struct kvm_create_spapr_tce_64)
1319/* Available with KVM_CAP_RMA */
1320#define KVM_ALLOCATE_RMA _IOR(KVMIO, 0xa9, struct kvm_allocate_rma)
1321/* Available with KVM_CAP_PPC_HTAB_FD */
1322#define KVM_PPC_GET_HTAB_FD _IOW(KVMIO, 0xaa, struct kvm_get_htab_fd)
1323/* Available with KVM_CAP_ARM_SET_DEVICE_ADDR */
1324#define KVM_ARM_SET_DEVICE_ADDR _IOW(KVMIO, 0xab, struct kvm_arm_device_addr)
1325/* Available with KVM_CAP_PPC_RTAS */
1326#define KVM_PPC_RTAS_DEFINE_TOKEN _IOW(KVMIO, 0xac, struct kvm_rtas_token_args)
1327/* Available with KVM_CAP_SPAPR_RESIZE_HPT */
1328#define KVM_PPC_RESIZE_HPT_PREPARE _IOR(KVMIO, 0xad, struct kvm_ppc_resize_hpt)
1329#define KVM_PPC_RESIZE_HPT_COMMIT _IOR(KVMIO, 0xae, struct kvm_ppc_resize_hpt)
1330/* Available with KVM_CAP_PPC_MMU_RADIX or KVM_CAP_PPC_MMU_HASH_V3 */
1331#define KVM_PPC_CONFIGURE_V3_MMU _IOW(KVMIO, 0xaf, struct kvm_ppc_mmuv3_cfg)
1332/* Available with KVM_CAP_PPC_MMU_RADIX */
1333#define KVM_PPC_GET_RMMU_INFO _IOW(KVMIO, 0xb0, struct kvm_ppc_rmmu_info)
1334/* Available with KVM_CAP_PPC_GET_CPU_CHAR */
1335#define KVM_PPC_GET_CPU_CHAR _IOR(KVMIO, 0xb1, struct kvm_ppc_cpu_char)
1336/* Available with KVM_CAP_PMU_EVENT_FILTER */
1337#define KVM_SET_PMU_EVENT_FILTER _IOW(KVMIO, 0xb2, struct kvm_pmu_event_filter)
1338#define KVM_PPC_SVM_OFF _IO(KVMIO, 0xb3)
1339#define KVM_ARM_MTE_COPY_TAGS _IOR(KVMIO, 0xb4, struct kvm_arm_copy_mte_tags)
1340/* Available with KVM_CAP_COUNTER_OFFSET */
1341#define KVM_ARM_SET_COUNTER_OFFSET _IOW(KVMIO, 0xb5, struct kvm_arm_counter_offset)
1342#define KVM_ARM_GET_REG_WRITABLE_MASKS _IOR(KVMIO, 0xb6, struct reg_mask_range)
1343
1344/* ioctl for vm fd */
1345#define KVM_CREATE_DEVICE _IOWR(KVMIO, 0xe0, struct kvm_create_device)
1346
1347/* ioctls for fds returned by KVM_CREATE_DEVICE */
1348#define KVM_SET_DEVICE_ATTR _IOW(KVMIO, 0xe1, struct kvm_device_attr)
1349#define KVM_GET_DEVICE_ATTR _IOW(KVMIO, 0xe2, struct kvm_device_attr)
1350#define KVM_HAS_DEVICE_ATTR _IOW(KVMIO, 0xe3, struct kvm_device_attr)
1351
1352/*
1353 * ioctls for vcpu fds
1354 */
1355#define KVM_RUN _IO(KVMIO, 0x80)
1356#define KVM_GET_REGS _IOR(KVMIO, 0x81, struct kvm_regs)
1357#define KVM_SET_REGS _IOW(KVMIO, 0x82, struct kvm_regs)
1358#define KVM_GET_SREGS _IOR(KVMIO, 0x83, struct kvm_sregs)
1359#define KVM_SET_SREGS _IOW(KVMIO, 0x84, struct kvm_sregs)
1360#define KVM_TRANSLATE _IOWR(KVMIO, 0x85, struct kvm_translation)
1361#define KVM_INTERRUPT _IOW(KVMIO, 0x86, struct kvm_interrupt)
1362#define KVM_GET_MSRS _IOWR(KVMIO, 0x88, struct kvm_msrs)
1363#define KVM_SET_MSRS _IOW(KVMIO, 0x89, struct kvm_msrs)
1364#define KVM_SET_CPUID _IOW(KVMIO, 0x8a, struct kvm_cpuid)
1365#define KVM_SET_SIGNAL_MASK _IOW(KVMIO, 0x8b, struct kvm_signal_mask)
1366#define KVM_GET_FPU _IOR(KVMIO, 0x8c, struct kvm_fpu)
1367#define KVM_SET_FPU _IOW(KVMIO, 0x8d, struct kvm_fpu)
1368#define KVM_GET_LAPIC _IOR(KVMIO, 0x8e, struct kvm_lapic_state)
1369#define KVM_SET_LAPIC _IOW(KVMIO, 0x8f, struct kvm_lapic_state)
1370#define KVM_SET_CPUID2 _IOW(KVMIO, 0x90, struct kvm_cpuid2)
1371#define KVM_GET_CPUID2 _IOWR(KVMIO, 0x91, struct kvm_cpuid2)
1372/* Available with KVM_CAP_VAPIC */
1373#define KVM_TPR_ACCESS_REPORTING _IOWR(KVMIO, 0x92, struct kvm_tpr_access_ctl)
1374/* Available with KVM_CAP_VAPIC */
1375#define KVM_SET_VAPIC_ADDR _IOW(KVMIO, 0x93, struct kvm_vapic_addr)
1376/* valid for virtual machine (for floating interrupt)_and_ vcpu */
1377#define KVM_S390_INTERRUPT _IOW(KVMIO, 0x94, struct kvm_s390_interrupt)
1378/* store status for s390 */
1379#define KVM_S390_STORE_STATUS_NOADDR (-1ul)
1380#define KVM_S390_STORE_STATUS_PREFIXED (-2ul)
1381#define KVM_S390_STORE_STATUS _IOW(KVMIO, 0x95, unsigned long)
1382/* initial ipl psw for s390 */
1383#define KVM_S390_SET_INITIAL_PSW _IOW(KVMIO, 0x96, struct kvm_s390_psw)
1384/* initial reset for s390 */
1385#define KVM_S390_INITIAL_RESET _IO(KVMIO, 0x97)
1386#define KVM_GET_MP_STATE _IOR(KVMIO, 0x98, struct kvm_mp_state)
1387#define KVM_SET_MP_STATE _IOW(KVMIO, 0x99, struct kvm_mp_state)
1388/* Available with KVM_CAP_USER_NMI */
1389#define KVM_NMI _IO(KVMIO, 0x9a)
1390/* Available with KVM_CAP_SET_GUEST_DEBUG */
1391#define KVM_SET_GUEST_DEBUG _IOW(KVMIO, 0x9b, struct kvm_guest_debug)
1392/* MCE for x86 */
1393#define KVM_X86_SETUP_MCE _IOW(KVMIO, 0x9c, __u64)
1394#define KVM_X86_GET_MCE_CAP_SUPPORTED _IOR(KVMIO, 0x9d, __u64)
1395#define KVM_X86_SET_MCE _IOW(KVMIO, 0x9e, struct kvm_x86_mce)
1396/* Available with KVM_CAP_VCPU_EVENTS */
1397#define KVM_GET_VCPU_EVENTS _IOR(KVMIO, 0x9f, struct kvm_vcpu_events)
1398#define KVM_SET_VCPU_EVENTS _IOW(KVMIO, 0xa0, struct kvm_vcpu_events)
1399/* Available with KVM_CAP_DEBUGREGS */
1400#define KVM_GET_DEBUGREGS _IOR(KVMIO, 0xa1, struct kvm_debugregs)
1401#define KVM_SET_DEBUGREGS _IOW(KVMIO, 0xa2, struct kvm_debugregs)
1402/*
1403 * vcpu version available with KVM_CAP_ENABLE_CAP
1404 * vm version available with KVM_CAP_ENABLE_CAP_VM
1405 */
1406#define KVM_ENABLE_CAP _IOW(KVMIO, 0xa3, struct kvm_enable_cap)
1407/* Available with KVM_CAP_XSAVE */
1408#define KVM_GET_XSAVE _IOR(KVMIO, 0xa4, struct kvm_xsave)
1409#define KVM_SET_XSAVE _IOW(KVMIO, 0xa5, struct kvm_xsave)
1410/* Available with KVM_CAP_XCRS */
1411#define KVM_GET_XCRS _IOR(KVMIO, 0xa6, struct kvm_xcrs)
1412#define KVM_SET_XCRS _IOW(KVMIO, 0xa7, struct kvm_xcrs)
1413/* Available with KVM_CAP_SW_TLB */
1414#define KVM_DIRTY_TLB _IOW(KVMIO, 0xaa, struct kvm_dirty_tlb)
1415/* Available with KVM_CAP_ONE_REG */
1416#define KVM_GET_ONE_REG _IOW(KVMIO, 0xab, struct kvm_one_reg)
1417#define KVM_SET_ONE_REG _IOW(KVMIO, 0xac, struct kvm_one_reg)
1418/* VM is being stopped by host */
1419#define KVM_KVMCLOCK_CTRL _IO(KVMIO, 0xad)
1420#define KVM_ARM_VCPU_INIT _IOW(KVMIO, 0xae, struct kvm_vcpu_init)
1421#define KVM_ARM_PREFERRED_TARGET _IOR(KVMIO, 0xaf, struct kvm_vcpu_init)
1422#define KVM_GET_REG_LIST _IOWR(KVMIO, 0xb0, struct kvm_reg_list)
1423/* Available with KVM_CAP_S390_MEM_OP */
1424#define KVM_S390_MEM_OP _IOW(KVMIO, 0xb1, struct kvm_s390_mem_op)
1425/* Available with KVM_CAP_S390_SKEYS */
1426#define KVM_S390_GET_SKEYS _IOW(KVMIO, 0xb2, struct kvm_s390_skeys)
1427#define KVM_S390_SET_SKEYS _IOW(KVMIO, 0xb3, struct kvm_s390_skeys)
1428/* Available with KVM_CAP_S390_INJECT_IRQ */
1429#define KVM_S390_IRQ _IOW(KVMIO, 0xb4, struct kvm_s390_irq)
1430/* Available with KVM_CAP_S390_IRQ_STATE */
1431#define KVM_S390_SET_IRQ_STATE _IOW(KVMIO, 0xb5, struct kvm_s390_irq_state)
1432#define KVM_S390_GET_IRQ_STATE _IOW(KVMIO, 0xb6, struct kvm_s390_irq_state)
1433/* Available with KVM_CAP_X86_SMM */
1434#define KVM_SMI _IO(KVMIO, 0xb7)
1435/* Available with KVM_CAP_S390_CMMA_MIGRATION */
1436#define KVM_S390_GET_CMMA_BITS _IOWR(KVMIO, 0xb8, struct kvm_s390_cmma_log)
1437#define KVM_S390_SET_CMMA_BITS _IOW(KVMIO, 0xb9, struct kvm_s390_cmma_log)
1438/* Memory Encryption Commands */
1439#define KVM_MEMORY_ENCRYPT_OP _IOWR(KVMIO, 0xba, unsigned long)
1440
1441struct kvm_enc_region {
1442 __u64 addr;
1443 __u64 size;
1444};
1445
1446#define KVM_MEMORY_ENCRYPT_REG_REGION _IOR(KVMIO, 0xbb, struct kvm_enc_region)
1447#define KVM_MEMORY_ENCRYPT_UNREG_REGION _IOR(KVMIO, 0xbc, struct kvm_enc_region)
1448
1449/* Available with KVM_CAP_HYPERV_EVENTFD */
1450#define KVM_HYPERV_EVENTFD _IOW(KVMIO, 0xbd, struct kvm_hyperv_eventfd)
1451
1452/* Available with KVM_CAP_NESTED_STATE */
1453#define KVM_GET_NESTED_STATE _IOWR(KVMIO, 0xbe, struct kvm_nested_state)
1454#define KVM_SET_NESTED_STATE _IOW(KVMIO, 0xbf, struct kvm_nested_state)
1455
1456/* Available with KVM_CAP_MANUAL_DIRTY_LOG_PROTECT_2 */
1457#define KVM_CLEAR_DIRTY_LOG _IOWR(KVMIO, 0xc0, struct kvm_clear_dirty_log)
1458
1459/* Available with KVM_CAP_HYPERV_CPUID (vcpu) / KVM_CAP_SYS_HYPERV_CPUID (system) */
1460#define KVM_GET_SUPPORTED_HV_CPUID _IOWR(KVMIO, 0xc1, struct kvm_cpuid2)
1461
1462/* Available with KVM_CAP_ARM_SVE */
1463#define KVM_ARM_VCPU_FINALIZE _IOW(KVMIO, 0xc2, int)
1464
1465/* Available with KVM_CAP_S390_VCPU_RESETS */
1466#define KVM_S390_NORMAL_RESET _IO(KVMIO, 0xc3)
1467#define KVM_S390_CLEAR_RESET _IO(KVMIO, 0xc4)
1468
1469/* Available with KVM_CAP_S390_PROTECTED */
1470#define KVM_S390_PV_COMMAND _IOWR(KVMIO, 0xc5, struct kvm_pv_cmd)
1471
1472/* Available with KVM_CAP_X86_MSR_FILTER */
1473#define KVM_X86_SET_MSR_FILTER _IOW(KVMIO, 0xc6, struct kvm_msr_filter)
1474
1475/* Available with KVM_CAP_DIRTY_LOG_RING */
1476#define KVM_RESET_DIRTY_RINGS _IO(KVMIO, 0xc7)
1477
1478/* Per-VM Xen attributes */
1479#define KVM_XEN_HVM_GET_ATTR _IOWR(KVMIO, 0xc8, struct kvm_xen_hvm_attr)
1480#define KVM_XEN_HVM_SET_ATTR _IOW(KVMIO, 0xc9, struct kvm_xen_hvm_attr)
1481
1482/* Per-vCPU Xen attributes */
1483#define KVM_XEN_VCPU_GET_ATTR _IOWR(KVMIO, 0xca, struct kvm_xen_vcpu_attr)
1484#define KVM_XEN_VCPU_SET_ATTR _IOW(KVMIO, 0xcb, struct kvm_xen_vcpu_attr)
1485
1486/* Available with KVM_CAP_XEN_HVM / KVM_XEN_HVM_CONFIG_EVTCHN_SEND */
1487#define KVM_XEN_HVM_EVTCHN_SEND _IOW(KVMIO, 0xd0, struct kvm_irq_routing_xen_evtchn)
1488
1489#define KVM_GET_SREGS2 _IOR(KVMIO, 0xcc, struct kvm_sregs2)
1490#define KVM_SET_SREGS2 _IOW(KVMIO, 0xcd, struct kvm_sregs2)
1491
1492#define KVM_DIRTY_LOG_MANUAL_PROTECT_ENABLE (1 << 0)
1493#define KVM_DIRTY_LOG_INITIALLY_SET (1 << 1)
1494
1495/*
1496 * Arch needs to define the macro after implementing the dirty ring
1497 * feature. KVM_DIRTY_LOG_PAGE_OFFSET should be defined as the
1498 * starting page offset of the dirty ring structures.
1499 */
1500#ifndef KVM_DIRTY_LOG_PAGE_OFFSET
1501#define KVM_DIRTY_LOG_PAGE_OFFSET 0
1502#endif
1503
1504/*
1505 * KVM dirty GFN flags, defined as:
1506 *
1507 * |---------------+---------------+--------------|
1508 * | bit 1 (reset) | bit 0 (dirty) | Status |
1509 * |---------------+---------------+--------------|
1510 * | 0 | 0 | Invalid GFN |
1511 * | 0 | 1 | Dirty GFN |
1512 * | 1 | X | GFN to reset |
1513 * |---------------+---------------+--------------|
1514 *
1515 * Lifecycle of a dirty GFN goes like:
1516 *
1517 * dirtied harvested reset
1518 * 00 -----------> 01 -------------> 1X -------+
1519 * ^ |
1520 * | |
1521 * +------------------------------------------+
1522 *
1523 * The userspace program is only responsible for the 01->1X state
1524 * conversion after harvesting an entry. Also, it must not skip any
1525 * dirty bits, so that dirty bits are always harvested in sequence.
1526 */
1527#define KVM_DIRTY_GFN_F_DIRTY _BITUL(0)
1528#define KVM_DIRTY_GFN_F_RESET _BITUL(1)
1529#define KVM_DIRTY_GFN_F_MASK 0x3
1530
1531/*
1532 * KVM dirty rings should be mapped at KVM_DIRTY_LOG_PAGE_OFFSET of
1533 * per-vcpu mmaped regions as an array of struct kvm_dirty_gfn. The
1534 * size of the gfn buffer is decided by the first argument when
1535 * enabling KVM_CAP_DIRTY_LOG_RING.
1536 */
1537struct kvm_dirty_gfn {
1538 __u32 flags;
1539 __u32 slot;
1540 __u64 offset;
1541};
1542
1543#define KVM_BUS_LOCK_DETECTION_OFF (1 << 0)
1544#define KVM_BUS_LOCK_DETECTION_EXIT (1 << 1)
1545
1546#define KVM_PMU_CAP_DISABLE (1 << 0)
1547
1548/**
1549 * struct kvm_stats_header - Header of per vm/vcpu binary statistics data.
1550 * @flags: Some extra information for header, always 0 for now.
1551 * @name_size: The size in bytes of the memory which contains statistics
1552 * name string including trailing '\0'. The memory is allocated
1553 * at the send of statistics descriptor.
1554 * @num_desc: The number of statistics the vm or vcpu has.
1555 * @id_offset: The offset of the vm/vcpu stats' id string in the file pointed
1556 * by vm/vcpu stats fd.
1557 * @desc_offset: The offset of the vm/vcpu stats' descriptor block in the file
1558 * pointd by vm/vcpu stats fd.
1559 * @data_offset: The offset of the vm/vcpu stats' data block in the file
1560 * pointed by vm/vcpu stats fd.
1561 *
1562 * This is the header userspace needs to read from stats fd before any other
1563 * readings. It is used by userspace to discover all the information about the
1564 * vm/vcpu's binary statistics.
1565 * Userspace reads this header from the start of the vm/vcpu's stats fd.
1566 */
1567struct kvm_stats_header {
1568 __u32 flags;
1569 __u32 name_size;
1570 __u32 num_desc;
1571 __u32 id_offset;
1572 __u32 desc_offset;
1573 __u32 data_offset;
1574};
1575
1576#define KVM_STATS_TYPE_SHIFT 0
1577#define KVM_STATS_TYPE_MASK (0xF << KVM_STATS_TYPE_SHIFT)
1578#define KVM_STATS_TYPE_CUMULATIVE (0x0 << KVM_STATS_TYPE_SHIFT)
1579#define KVM_STATS_TYPE_INSTANT (0x1 << KVM_STATS_TYPE_SHIFT)
1580#define KVM_STATS_TYPE_PEAK (0x2 << KVM_STATS_TYPE_SHIFT)
1581#define KVM_STATS_TYPE_LINEAR_HIST (0x3 << KVM_STATS_TYPE_SHIFT)
1582#define KVM_STATS_TYPE_LOG_HIST (0x4 << KVM_STATS_TYPE_SHIFT)
1583#define KVM_STATS_TYPE_MAX KVM_STATS_TYPE_LOG_HIST
1584
1585#define KVM_STATS_UNIT_SHIFT 4
1586#define KVM_STATS_UNIT_MASK (0xF << KVM_STATS_UNIT_SHIFT)
1587#define KVM_STATS_UNIT_NONE (0x0 << KVM_STATS_UNIT_SHIFT)
1588#define KVM_STATS_UNIT_BYTES (0x1 << KVM_STATS_UNIT_SHIFT)
1589#define KVM_STATS_UNIT_SECONDS (0x2 << KVM_STATS_UNIT_SHIFT)
1590#define KVM_STATS_UNIT_CYCLES (0x3 << KVM_STATS_UNIT_SHIFT)
1591#define KVM_STATS_UNIT_BOOLEAN (0x4 << KVM_STATS_UNIT_SHIFT)
1592#define KVM_STATS_UNIT_MAX KVM_STATS_UNIT_BOOLEAN
1593
1594#define KVM_STATS_BASE_SHIFT 8
1595#define KVM_STATS_BASE_MASK (0xF << KVM_STATS_BASE_SHIFT)
1596#define KVM_STATS_BASE_POW10 (0x0 << KVM_STATS_BASE_SHIFT)
1597#define KVM_STATS_BASE_POW2 (0x1 << KVM_STATS_BASE_SHIFT)
1598#define KVM_STATS_BASE_MAX KVM_STATS_BASE_POW2
1599
1600/**
1601 * struct kvm_stats_desc - Descriptor of a KVM statistics.
1602 * @flags: Annotations of the stats, like type, unit, etc.
1603 * @exponent: Used together with @flags to determine the unit.
1604 * @size: The number of data items for this stats.
1605 * Every data item is of type __u64.
1606 * @offset: The offset of the stats to the start of stat structure in
1607 * structure kvm or kvm_vcpu.
1608 * @bucket_size: A parameter value used for histogram stats. It is only used
1609 * for linear histogram stats, specifying the size of the bucket;
1610 * @name: The name string for the stats. Its size is indicated by the
1611 * &kvm_stats_header->name_size.
1612 */
1613struct kvm_stats_desc {
1614 __u32 flags;
1615 __s16 exponent;
1616 __u16 size;
1617 __u32 offset;
1618 __u32 bucket_size;
1619#ifdef __KERNEL__
1620 char name[KVM_STATS_NAME_SIZE];
1621#else
1622 __DECLARE_FLEX_ARRAY(char, name);
1623#endif
1624};
1625
1626#define KVM_GET_STATS_FD _IO(KVMIO, 0xce)
1627
1628/* Available with KVM_CAP_XSAVE2 */
1629#define KVM_GET_XSAVE2 _IOR(KVMIO, 0xcf, struct kvm_xsave)
1630
1631/* Available with KVM_CAP_S390_PROTECTED_DUMP */
1632#define KVM_S390_PV_CPU_COMMAND _IOWR(KVMIO, 0xd0, struct kvm_pv_cmd)
1633
1634/* Available with KVM_CAP_X86_NOTIFY_VMEXIT */
1635#define KVM_X86_NOTIFY_VMEXIT_ENABLED (1ULL << 0)
1636#define KVM_X86_NOTIFY_VMEXIT_USER (1ULL << 1)
1637
1638/* Available with KVM_CAP_S390_ZPCI_OP */
1639#define KVM_S390_ZPCI_OP _IOW(KVMIO, 0xd1, struct kvm_s390_zpci_op)
1640
1641/* Available with KVM_CAP_MEMORY_ATTRIBUTES */
1642#define KVM_SET_MEMORY_ATTRIBUTES _IOW(KVMIO, 0xd2, struct kvm_memory_attributes)
1643
1644struct kvm_memory_attributes {
1645 __u64 address;
1646 __u64 size;
1647 __u64 attributes;
1648 __u64 flags;
1649};
1650
1651#define KVM_MEMORY_ATTRIBUTE_PRIVATE (1ULL << 3)
1652
1653#define KVM_CREATE_GUEST_MEMFD _IOWR(KVMIO, 0xd4, struct kvm_create_guest_memfd)
1654#define GUEST_MEMFD_FLAG_MMAP (1ULL << 0)
1655#define GUEST_MEMFD_FLAG_INIT_SHARED (1ULL << 1)
1656
1657struct kvm_create_guest_memfd {
1658 __u64 size;
1659 __u64 flags;
1660 __u64 reserved[6];
1661};
1662
1663#define KVM_PRE_FAULT_MEMORY _IOWR(KVMIO, 0xd5, struct kvm_pre_fault_memory)
1664
1665struct kvm_pre_fault_memory {
1666 __u64 gpa;
1667 __u64 size;
1668 __u64 flags;
1669 __u64 padding[5];
1670};
1671
1672#endif /* __LINUX_KVM_H */