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 */
25 struct 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 */
34 struct 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 */
56 struct 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
71 struct 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 */
86 struct kvm_pit_config {
87 __u32 flags;
88 __u32 pad[15];
89 };
90
91 #define KVM_PIT_SPEAKER_DUMMY 1
92
93 struct 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
124 struct kvm_xen_exit {
125 #define KVM_EXIT_XEN_HCALL 1
126 __u32 type;
127 union {
128 struct {
129 __u32 longmode;
130 __u32 cpl;
131 __u64 input;
132 __u64 result;
133 __u64 params[6];
134 } hcall;
135 } u;
136 };
137
138 #define KVM_S390_GET_SKEYS_NONE 1
139 #define KVM_S390_SKEYS_MAX 1048576
140
141 #define KVM_EXIT_UNKNOWN 0
142 #define KVM_EXIT_EXCEPTION 1
143 #define KVM_EXIT_IO 2
144 #define KVM_EXIT_HYPERCALL 3
145 #define KVM_EXIT_DEBUG 4
146 #define KVM_EXIT_HLT 5
147 #define KVM_EXIT_MMIO 6
148 #define KVM_EXIT_IRQ_WINDOW_OPEN 7
149 #define KVM_EXIT_SHUTDOWN 8
150 #define KVM_EXIT_FAIL_ENTRY 9
151 #define KVM_EXIT_INTR 10
152 #define KVM_EXIT_SET_TPR 11
153 #define KVM_EXIT_TPR_ACCESS 12
154 #define KVM_EXIT_S390_SIEIC 13
155 #define KVM_EXIT_S390_RESET 14
156 #define KVM_EXIT_DCR 15 /* deprecated */
157 #define KVM_EXIT_NMI 16
158 #define KVM_EXIT_INTERNAL_ERROR 17
159 #define KVM_EXIT_OSI 18
160 #define KVM_EXIT_PAPR_HCALL 19
161 #define KVM_EXIT_S390_UCONTROL 20
162 #define KVM_EXIT_WATCHDOG 21
163 #define KVM_EXIT_S390_TSCH 22
164 #define KVM_EXIT_EPR 23
165 #define KVM_EXIT_SYSTEM_EVENT 24
166 #define KVM_EXIT_S390_STSI 25
167 #define KVM_EXIT_IOAPIC_EOI 26
168 #define KVM_EXIT_HYPERV 27
169 #define KVM_EXIT_ARM_NISV 28
170 #define KVM_EXIT_X86_RDMSR 29
171 #define KVM_EXIT_X86_WRMSR 30
172 #define KVM_EXIT_DIRTY_RING_FULL 31
173 #define KVM_EXIT_AP_RESET_HOLD 32
174 #define KVM_EXIT_X86_BUS_LOCK 33
175 #define KVM_EXIT_XEN 34
176 #define KVM_EXIT_RISCV_SBI 35
177 #define KVM_EXIT_RISCV_CSR 36
178 #define KVM_EXIT_NOTIFY 37
179 #define KVM_EXIT_LOONGARCH_IOCSR 38
180 #define KVM_EXIT_MEMORY_FAULT 39
181
182 /* For KVM_EXIT_INTERNAL_ERROR */
183 /* Emulate instruction failed. */
184 #define KVM_INTERNAL_ERROR_EMULATION 1
185 /* Encounter unexpected simultaneous exceptions. */
186 #define KVM_INTERNAL_ERROR_SIMUL_EX 2
187 /* Encounter unexpected vm-exit due to delivery event. */
188 #define KVM_INTERNAL_ERROR_DELIVERY_EV 3
189 /* Encounter unexpected vm-exit reason */
190 #define KVM_INTERNAL_ERROR_UNEXPECTED_EXIT_REASON 4
191
192 /* Flags that describe what fields in emulation_failure hold valid data. */
193 #define KVM_INTERNAL_ERROR_EMULATION_FLAG_INSTRUCTION_BYTES (1ULL << 0)
194
195 /*
196 * struct kvm_run can be modified by userspace at any time, so KVM must be
197 * careful to avoid TOCTOU bugs. In order to protect KVM, HINT_UNSAFE_IN_KVM()
198 * renames fields in struct kvm_run from <symbol> to <symbol>__unsafe when
199 * compiled into the kernel, ensuring that any use within KVM is obvious and
200 * gets extra scrutiny.
201 */
202 #ifdef __KERNEL__
203 #define HINT_UNSAFE_IN_KVM(_symbol) _symbol##__unsafe
204 #else
205 #define HINT_UNSAFE_IN_KVM(_symbol) _symbol
206 #endif
207
208 /* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */
209 struct kvm_run {
210 /* in */
211 __u8 request_interrupt_window;
212 __u8 HINT_UNSAFE_IN_KVM(immediate_exit);
213 __u8 padding1[6];
214
215 /* out */
216 __u32 exit_reason;
217 __u8 ready_for_interrupt_injection;
218 __u8 if_flag;
219 __u16 flags;
220
221 /* in (pre_kvm_run), out (post_kvm_run) */
222 __u64 cr8;
223 __u64 apic_base;
224
225 #ifdef __KVM_S390
226 /* the processor status word for s390 */
227 __u64 psw_mask; /* psw upper half */
228 __u64 psw_addr; /* psw lower half */
229 #endif
230 union {
231 /* KVM_EXIT_UNKNOWN */
232 struct {
233 __u64 hardware_exit_reason;
234 } hw;
235 /* KVM_EXIT_FAIL_ENTRY */
236 struct {
237 __u64 hardware_entry_failure_reason;
238 __u32 cpu;
239 } fail_entry;
240 /* KVM_EXIT_EXCEPTION */
241 struct {
242 __u32 exception;
243 __u32 error_code;
244 } ex;
245 /* KVM_EXIT_IO */
246 struct {
247 #define KVM_EXIT_IO_IN 0
248 #define KVM_EXIT_IO_OUT 1
249 __u8 direction;
250 __u8 size; /* bytes */
251 __u16 port;
252 __u32 count;
253 __u64 data_offset; /* relative to kvm_run start */
254 } io;
255 /* KVM_EXIT_DEBUG */
256 struct {
257 struct kvm_debug_exit_arch arch;
258 } debug;
259 /* KVM_EXIT_MMIO */
260 struct {
261 __u64 phys_addr;
262 __u8 data[8];
263 __u32 len;
264 __u8 is_write;
265 } mmio;
266 /* KVM_EXIT_LOONGARCH_IOCSR */
267 struct {
268 __u64 phys_addr;
269 __u8 data[8];
270 __u32 len;
271 __u8 is_write;
272 } iocsr_io;
273 /* KVM_EXIT_HYPERCALL */
274 struct {
275 __u64 nr;
276 __u64 args[6];
277 __u64 ret;
278
279 union {
280 #ifndef __KERNEL__
281 __u32 longmode;
282 #endif
283 __u64 flags;
284 };
285 } hypercall;
286 /* KVM_EXIT_TPR_ACCESS */
287 struct {
288 __u64 rip;
289 __u32 is_write;
290 __u32 pad;
291 } tpr_access;
292 /* KVM_EXIT_S390_SIEIC */
293 struct {
294 __u8 icptcode;
295 __u16 ipa;
296 __u32 ipb;
297 } s390_sieic;
298 /* KVM_EXIT_S390_RESET */
299 __u64 s390_reset_flags;
300 /* KVM_EXIT_S390_UCONTROL */
301 struct {
302 __u64 trans_exc_code;
303 __u32 pgm_code;
304 } s390_ucontrol;
305 /* KVM_EXIT_DCR (deprecated) */
306 struct {
307 __u32 dcrn;
308 __u32 data;
309 __u8 is_write;
310 } dcr;
311 /* KVM_EXIT_INTERNAL_ERROR */
312 struct {
313 __u32 suberror;
314 /* Available with KVM_CAP_INTERNAL_ERROR_DATA: */
315 __u32 ndata;
316 __u64 data[16];
317 } internal;
318 /*
319 * KVM_INTERNAL_ERROR_EMULATION
320 *
321 * "struct emulation_failure" is an overlay of "struct internal"
322 * that is used for the KVM_INTERNAL_ERROR_EMULATION sub-type of
323 * KVM_EXIT_INTERNAL_ERROR. Note, unlike other internal error
324 * sub-types, this struct is ABI! It also needs to be backwards
325 * compatible with "struct internal". Take special care that
326 * "ndata" is correct, that new fields are enumerated in "flags",
327 * and that each flag enumerates fields that are 64-bit aligned
328 * and sized (so that ndata+internal.data[] is valid/accurate).
329 *
330 * Space beyond the defined fields may be used to store arbitrary
331 * debug information relating to the emulation failure. It is
332 * accounted for in "ndata" but the format is unspecified and is
333 * not represented in "flags". Any such information is *not* ABI!
334 */
335 struct {
336 __u32 suberror;
337 __u32 ndata;
338 __u64 flags;
339 union {
340 struct {
341 __u8 insn_size;
342 __u8 insn_bytes[15];
343 };
344 };
345 /* Arbitrary debug data may follow. */
346 } emulation_failure;
347 /* KVM_EXIT_OSI */
348 struct {
349 __u64 gprs[32];
350 } osi;
351 /* KVM_EXIT_PAPR_HCALL */
352 struct {
353 __u64 nr;
354 __u64 ret;
355 __u64 args[9];
356 } papr_hcall;
357 /* KVM_EXIT_S390_TSCH */
358 struct {
359 __u16 subchannel_id;
360 __u16 subchannel_nr;
361 __u32 io_int_parm;
362 __u32 io_int_word;
363 __u32 ipb;
364 __u8 dequeued;
365 } s390_tsch;
366 /* KVM_EXIT_EPR */
367 struct {
368 __u32 epr;
369 } epr;
370 /* KVM_EXIT_SYSTEM_EVENT */
371 struct {
372 #define KVM_SYSTEM_EVENT_SHUTDOWN 1
373 #define KVM_SYSTEM_EVENT_RESET 2
374 #define KVM_SYSTEM_EVENT_CRASH 3
375 #define KVM_SYSTEM_EVENT_WAKEUP 4
376 #define KVM_SYSTEM_EVENT_SUSPEND 5
377 #define KVM_SYSTEM_EVENT_SEV_TERM 6
378 __u32 type;
379 __u32 ndata;
380 union {
381 #ifndef __KERNEL__
382 __u64 flags;
383 #endif
384 __u64 data[16];
385 };
386 } system_event;
387 /* KVM_EXIT_S390_STSI */
388 struct {
389 __u64 addr;
390 __u8 ar;
391 __u8 reserved;
392 __u8 fc;
393 __u8 sel1;
394 __u16 sel2;
395 } s390_stsi;
396 /* KVM_EXIT_IOAPIC_EOI */
397 struct {
398 __u8 vector;
399 } eoi;
400 /* KVM_EXIT_HYPERV */
401 struct kvm_hyperv_exit hyperv;
402 /* KVM_EXIT_ARM_NISV */
403 struct {
404 __u64 esr_iss;
405 __u64 fault_ipa;
406 } arm_nisv;
407 /* KVM_EXIT_X86_RDMSR / KVM_EXIT_X86_WRMSR */
408 struct {
409 __u8 error; /* user -> kernel */
410 __u8 pad[7];
411 #define KVM_MSR_EXIT_REASON_INVAL (1 << 0)
412 #define KVM_MSR_EXIT_REASON_UNKNOWN (1 << 1)
413 #define KVM_MSR_EXIT_REASON_FILTER (1 << 2)
414 #define KVM_MSR_EXIT_REASON_VALID_MASK (KVM_MSR_EXIT_REASON_INVAL | \
415 KVM_MSR_EXIT_REASON_UNKNOWN | \
416 KVM_MSR_EXIT_REASON_FILTER)
417 __u32 reason; /* kernel -> user */
418 __u32 index; /* kernel -> user */
419 __u64 data; /* kernel <-> user */
420 } msr;
421 /* KVM_EXIT_XEN */
422 struct kvm_xen_exit xen;
423 /* KVM_EXIT_RISCV_SBI */
424 struct {
425 unsigned long extension_id;
426 unsigned long function_id;
427 unsigned long args[6];
428 unsigned long ret[2];
429 } riscv_sbi;
430 /* KVM_EXIT_RISCV_CSR */
431 struct {
432 unsigned long csr_num;
433 unsigned long new_value;
434 unsigned long write_mask;
435 unsigned long ret_value;
436 } riscv_csr;
437 /* KVM_EXIT_NOTIFY */
438 struct {
439 #define KVM_NOTIFY_CONTEXT_INVALID (1 << 0)
440 __u32 flags;
441 } notify;
442 /* KVM_EXIT_MEMORY_FAULT */
443 struct {
444 #define KVM_MEMORY_EXIT_FLAG_PRIVATE (1ULL << 3)
445 __u64 flags;
446 __u64 gpa;
447 __u64 size;
448 } memory_fault;
449 /* Fix the size of the union. */
450 char padding[256];
451 };
452
453 /* 2048 is the size of the char array used to bound/pad the size
454 * of the union that holds sync regs.
455 */
456 #define SYNC_REGS_SIZE_BYTES 2048
457 /*
458 * shared registers between kvm and userspace.
459 * kvm_valid_regs specifies the register classes set by the host
460 * kvm_dirty_regs specified the register classes dirtied by userspace
461 * struct kvm_sync_regs is architecture specific, as well as the
462 * bits for kvm_valid_regs and kvm_dirty_regs
463 */
464 __u64 kvm_valid_regs;
465 __u64 kvm_dirty_regs;
466 union {
467 struct kvm_sync_regs regs;
468 char padding[SYNC_REGS_SIZE_BYTES];
469 } s;
470 };
471
472 /* for KVM_REGISTER_COALESCED_MMIO / KVM_UNREGISTER_COALESCED_MMIO */
473
474 struct kvm_coalesced_mmio_zone {
475 __u64 addr;
476 __u32 size;
477 union {
478 __u32 pad;
479 __u32 pio;
480 };
481 };
482
483 struct kvm_coalesced_mmio {
484 __u64 phys_addr;
485 __u32 len;
486 union {
487 __u32 pad;
488 __u32 pio;
489 };
490 __u8 data[8];
491 };
492
493 struct kvm_coalesced_mmio_ring {
494 __u32 first, last;
495 struct kvm_coalesced_mmio coalesced_mmio[];
496 };
497
498 #define KVM_COALESCED_MMIO_MAX \
499 ((PAGE_SIZE - sizeof(struct kvm_coalesced_mmio_ring)) / \
500 sizeof(struct kvm_coalesced_mmio))
501
502 /* for KVM_TRANSLATE */
503 struct kvm_translation {
504 /* in */
505 __u64 linear_address;
506
507 /* out */
508 __u64 physical_address;
509 __u8 valid;
510 __u8 writeable;
511 __u8 usermode;
512 __u8 pad[5];
513 };
514
515 /* for KVM_INTERRUPT */
516 struct kvm_interrupt {
517 /* in */
518 __u32 irq;
519 };
520
521 /* for KVM_GET_DIRTY_LOG */
522 struct kvm_dirty_log {
523 __u32 slot;
524 __u32 padding1;
525 union {
526 void __user *dirty_bitmap; /* one bit per page */
527 __u64 padding2;
528 };
529 };
530
531 /* for KVM_CLEAR_DIRTY_LOG */
532 struct kvm_clear_dirty_log {
533 __u32 slot;
534 __u32 num_pages;
535 __u64 first_page;
536 union {
537 void __user *dirty_bitmap; /* one bit per page */
538 __u64 padding2;
539 };
540 };
541
542 /* for KVM_SET_SIGNAL_MASK */
543 struct kvm_signal_mask {
544 __u32 len;
545 __u8 sigset[];
546 };
547
548 /* for KVM_TPR_ACCESS_REPORTING */
549 struct kvm_tpr_access_ctl {
550 __u32 enabled;
551 __u32 flags;
552 __u32 reserved[8];
553 };
554
555 /* for KVM_SET_VAPIC_ADDR */
556 struct kvm_vapic_addr {
557 __u64 vapic_addr;
558 };
559
560 /* for KVM_SET_MP_STATE */
561
562 /* not all states are valid on all architectures */
563 #define KVM_MP_STATE_RUNNABLE 0
564 #define KVM_MP_STATE_UNINITIALIZED 1
565 #define KVM_MP_STATE_INIT_RECEIVED 2
566 #define KVM_MP_STATE_HALTED 3
567 #define KVM_MP_STATE_SIPI_RECEIVED 4
568 #define KVM_MP_STATE_STOPPED 5
569 #define KVM_MP_STATE_CHECK_STOP 6
570 #define KVM_MP_STATE_OPERATING 7
571 #define KVM_MP_STATE_LOAD 8
572 #define KVM_MP_STATE_AP_RESET_HOLD 9
573 #define KVM_MP_STATE_SUSPENDED 10
574
575 struct kvm_mp_state {
576 __u32 mp_state;
577 };
578
579 /* for KVM_SET_GUEST_DEBUG */
580
581 #define KVM_GUESTDBG_ENABLE 0x00000001
582 #define KVM_GUESTDBG_SINGLESTEP 0x00000002
583
584 struct kvm_guest_debug {
585 __u32 control;
586 __u32 pad;
587 struct kvm_guest_debug_arch arch;
588 };
589
590 enum {
591 kvm_ioeventfd_flag_nr_datamatch,
592 kvm_ioeventfd_flag_nr_pio,
593 kvm_ioeventfd_flag_nr_deassign,
594 kvm_ioeventfd_flag_nr_virtio_ccw_notify,
595 kvm_ioeventfd_flag_nr_fast_mmio,
596 kvm_ioeventfd_flag_nr_max,
597 };
598
599 #define KVM_IOEVENTFD_FLAG_DATAMATCH (1 << kvm_ioeventfd_flag_nr_datamatch)
600 #define KVM_IOEVENTFD_FLAG_PIO (1 << kvm_ioeventfd_flag_nr_pio)
601 #define KVM_IOEVENTFD_FLAG_DEASSIGN (1 << kvm_ioeventfd_flag_nr_deassign)
602 #define KVM_IOEVENTFD_FLAG_VIRTIO_CCW_NOTIFY \
603 (1 << kvm_ioeventfd_flag_nr_virtio_ccw_notify)
604
605 #define KVM_IOEVENTFD_VALID_FLAG_MASK ((1 << kvm_ioeventfd_flag_nr_max) - 1)
606
607 struct kvm_ioeventfd {
608 __u64 datamatch;
609 __u64 addr; /* legal pio/mmio address */
610 __u32 len; /* 1, 2, 4, or 8 bytes; or 0 to ignore length */
611 __s32 fd;
612 __u32 flags;
613 __u8 pad[36];
614 };
615
616 #define KVM_X86_DISABLE_EXITS_MWAIT (1 << 0)
617 #define KVM_X86_DISABLE_EXITS_HLT (1 << 1)
618 #define KVM_X86_DISABLE_EXITS_PAUSE (1 << 2)
619 #define KVM_X86_DISABLE_EXITS_CSTATE (1 << 3)
620 #define KVM_X86_DISABLE_VALID_EXITS (KVM_X86_DISABLE_EXITS_MWAIT | \
621 KVM_X86_DISABLE_EXITS_HLT | \
622 KVM_X86_DISABLE_EXITS_PAUSE | \
623 KVM_X86_DISABLE_EXITS_CSTATE)
624
625 /* for KVM_ENABLE_CAP */
626 struct kvm_enable_cap {
627 /* in */
628 __u32 cap;
629 __u32 flags;
630 __u64 args[4];
631 __u8 pad[64];
632 };
633
634 #define KVMIO 0xAE
635
636 /* machine type bits, to be used as argument to KVM_CREATE_VM */
637 #define KVM_VM_S390_UCONTROL 1
638
639 /* on ppc, 0 indicate default, 1 should force HV and 2 PR */
640 #define KVM_VM_PPC_HV 1
641 #define KVM_VM_PPC_PR 2
642
643 /* on MIPS, 0 indicates auto, 1 forces VZ ASE, 2 forces trap & emulate */
644 #define KVM_VM_MIPS_AUTO 0
645 #define KVM_VM_MIPS_VZ 1
646 #define KVM_VM_MIPS_TE 2
647
648 #define KVM_S390_SIE_PAGE_OFFSET 1
649
650 /*
651 * On arm64, machine type can be used to request the physical
652 * address size for the VM. Bits[7-0] are reserved for the guest
653 * PA size shift (i.e, log2(PA_Size)). For backward compatibility,
654 * value 0 implies the default IPA size, 40bits.
655 */
656 #define KVM_VM_TYPE_ARM_IPA_SIZE_MASK 0xffULL
657 #define KVM_VM_TYPE_ARM_IPA_SIZE(x) \
658 ((x) & KVM_VM_TYPE_ARM_IPA_SIZE_MASK)
659 /*
660 * ioctls for /dev/kvm fds:
661 */
662 #define KVM_GET_API_VERSION _IO(KVMIO, 0x00)
663 #define KVM_CREATE_VM _IO(KVMIO, 0x01) /* returns a VM fd */
664 #define KVM_GET_MSR_INDEX_LIST _IOWR(KVMIO, 0x02, struct kvm_msr_list)
665
666 #define KVM_S390_ENABLE_SIE _IO(KVMIO, 0x06)
667 /*
668 * Check if a kvm extension is available. Argument is extension number,
669 * return is 1 (yes) or 0 (no, sorry).
670 */
671 #define KVM_CHECK_EXTENSION _IO(KVMIO, 0x03)
672 /*
673 * Get size for mmap(vcpu_fd)
674 */
675 #define KVM_GET_VCPU_MMAP_SIZE _IO(KVMIO, 0x04) /* in bytes */
676 #define KVM_GET_SUPPORTED_CPUID _IOWR(KVMIO, 0x05, struct kvm_cpuid2)
677 #define KVM_GET_EMULATED_CPUID _IOWR(KVMIO, 0x09, struct kvm_cpuid2)
678 #define KVM_GET_MSR_FEATURE_INDEX_LIST _IOWR(KVMIO, 0x0a, struct kvm_msr_list)
679
680 /*
681 * Extension capability list.
682 */
683 #define KVM_CAP_IRQCHIP 0
684 #define KVM_CAP_HLT 1
685 #define KVM_CAP_MMU_SHADOW_CACHE_CONTROL 2
686 #define KVM_CAP_USER_MEMORY 3
687 #define KVM_CAP_SET_TSS_ADDR 4
688 #define KVM_CAP_VAPIC 6
689 #define KVM_CAP_EXT_CPUID 7
690 #define KVM_CAP_CLOCKSOURCE 8
691 #define KVM_CAP_NR_VCPUS 9 /* returns recommended max vcpus per vm */
692 #define KVM_CAP_NR_MEMSLOTS 10 /* returns max memory slots per vm */
693 #define KVM_CAP_PIT 11
694 #define KVM_CAP_NOP_IO_DELAY 12
695 #define KVM_CAP_PV_MMU 13
696 #define KVM_CAP_MP_STATE 14
697 #define KVM_CAP_COALESCED_MMIO 15
698 #define KVM_CAP_SYNC_MMU 16 /* Changes to host mmap are reflected in guest */
699 #define KVM_CAP_IOMMU 18
700 /* Bug in KVM_SET_USER_MEMORY_REGION fixed: */
701 #define KVM_CAP_DESTROY_MEMORY_REGION_WORKS 21
702 #define KVM_CAP_USER_NMI 22
703 #define KVM_CAP_SET_GUEST_DEBUG 23
704 #ifdef __KVM_HAVE_PIT
705 #define KVM_CAP_REINJECT_CONTROL 24
706 #endif
707 #define KVM_CAP_IRQ_ROUTING 25
708 #define KVM_CAP_IRQ_INJECT_STATUS 26
709 #define KVM_CAP_ASSIGN_DEV_IRQ 29
710 /* Another bug in KVM_SET_USER_MEMORY_REGION fixed: */
711 #define KVM_CAP_JOIN_MEMORY_REGIONS_WORKS 30
712 #ifdef __KVM_HAVE_MCE
713 #define KVM_CAP_MCE 31
714 #endif
715 #define KVM_CAP_IRQFD 32
716 #ifdef __KVM_HAVE_PIT
717 #define KVM_CAP_PIT2 33
718 #endif
719 #define KVM_CAP_SET_BOOT_CPU_ID 34
720 #ifdef __KVM_HAVE_PIT_STATE2
721 #define KVM_CAP_PIT_STATE2 35
722 #endif
723 #define KVM_CAP_IOEVENTFD 36
724 #define KVM_CAP_SET_IDENTITY_MAP_ADDR 37
725 #ifdef __KVM_HAVE_XEN_HVM
726 #define KVM_CAP_XEN_HVM 38
727 #endif
728 #define KVM_CAP_ADJUST_CLOCK 39
729 #define KVM_CAP_INTERNAL_ERROR_DATA 40
730 #ifdef __KVM_HAVE_VCPU_EVENTS
731 #define KVM_CAP_VCPU_EVENTS 41
732 #endif
733 #define KVM_CAP_S390_PSW 42
734 #define KVM_CAP_PPC_SEGSTATE 43
735 #define KVM_CAP_HYPERV 44
736 #define KVM_CAP_HYPERV_VAPIC 45
737 #define KVM_CAP_HYPERV_SPIN 46
738 #define KVM_CAP_PCI_SEGMENT 47
739 #define KVM_CAP_PPC_PAIRED_SINGLES 48
740 #define KVM_CAP_INTR_SHADOW 49
741 #ifdef __KVM_HAVE_DEBUGREGS
742 #define KVM_CAP_DEBUGREGS 50
743 #endif
744 #define KVM_CAP_X86_ROBUST_SINGLESTEP 51
745 #define KVM_CAP_PPC_OSI 52
746 #define KVM_CAP_PPC_UNSET_IRQ 53
747 #define KVM_CAP_ENABLE_CAP 54
748 #ifdef __KVM_HAVE_XSAVE
749 #define KVM_CAP_XSAVE 55
750 #endif
751 #ifdef __KVM_HAVE_XCRS
752 #define KVM_CAP_XCRS 56
753 #endif
754 #define KVM_CAP_PPC_GET_PVINFO 57
755 #define KVM_CAP_PPC_IRQ_LEVEL 58
756 #define KVM_CAP_ASYNC_PF 59
757 #define KVM_CAP_TSC_CONTROL 60
758 #define KVM_CAP_GET_TSC_KHZ 61
759 #define KVM_CAP_PPC_BOOKE_SREGS 62
760 #define KVM_CAP_SPAPR_TCE 63
761 #define KVM_CAP_PPC_SMT 64
762 #define KVM_CAP_PPC_RMA 65
763 #define KVM_CAP_MAX_VCPUS 66 /* returns max vcpus per vm */
764 #define KVM_CAP_PPC_HIOR 67
765 #define KVM_CAP_PPC_PAPR 68
766 #define KVM_CAP_SW_TLB 69
767 #define KVM_CAP_ONE_REG 70
768 #define KVM_CAP_S390_GMAP 71
769 #define KVM_CAP_TSC_DEADLINE_TIMER 72
770 #define KVM_CAP_S390_UCONTROL 73
771 #define KVM_CAP_SYNC_REGS 74
772 #define KVM_CAP_PCI_2_3 75
773 #define KVM_CAP_KVMCLOCK_CTRL 76
774 #define KVM_CAP_SIGNAL_MSI 77
775 #define KVM_CAP_PPC_GET_SMMU_INFO 78
776 #define KVM_CAP_S390_COW 79
777 #define KVM_CAP_PPC_ALLOC_HTAB 80
778 #define KVM_CAP_READONLY_MEM 81
779 #define KVM_CAP_IRQFD_RESAMPLE 82
780 #define KVM_CAP_PPC_BOOKE_WATCHDOG 83
781 #define KVM_CAP_PPC_HTAB_FD 84
782 #define KVM_CAP_S390_CSS_SUPPORT 85
783 #define KVM_CAP_PPC_EPR 86
784 #define KVM_CAP_ARM_PSCI 87
785 #define KVM_CAP_ARM_SET_DEVICE_ADDR 88
786 #define KVM_CAP_DEVICE_CTRL 89
787 #define KVM_CAP_IRQ_MPIC 90
788 #define KVM_CAP_PPC_RTAS 91
789 #define KVM_CAP_IRQ_XICS 92
790 #define KVM_CAP_ARM_EL1_32BIT 93
791 #define KVM_CAP_SPAPR_MULTITCE 94
792 #define KVM_CAP_EXT_EMUL_CPUID 95
793 #define KVM_CAP_HYPERV_TIME 96
794 #define KVM_CAP_IOAPIC_POLARITY_IGNORED 97
795 #define KVM_CAP_ENABLE_CAP_VM 98
796 #define KVM_CAP_S390_IRQCHIP 99
797 #define KVM_CAP_IOEVENTFD_NO_LENGTH 100
798 #define KVM_CAP_VM_ATTRIBUTES 101
799 #define KVM_CAP_ARM_PSCI_0_2 102
800 #define KVM_CAP_PPC_FIXUP_HCALL 103
801 #define KVM_CAP_PPC_ENABLE_HCALL 104
802 #define KVM_CAP_CHECK_EXTENSION_VM 105
803 #define KVM_CAP_S390_USER_SIGP 106
804 #define KVM_CAP_S390_VECTOR_REGISTERS 107
805 #define KVM_CAP_S390_MEM_OP 108
806 #define KVM_CAP_S390_USER_STSI 109
807 #define KVM_CAP_S390_SKEYS 110
808 #define KVM_CAP_MIPS_FPU 111
809 #define KVM_CAP_MIPS_MSA 112
810 #define KVM_CAP_S390_INJECT_IRQ 113
811 #define KVM_CAP_S390_IRQ_STATE 114
812 #define KVM_CAP_PPC_HWRNG 115
813 #define KVM_CAP_DISABLE_QUIRKS 116
814 #define KVM_CAP_X86_SMM 117
815 #define KVM_CAP_MULTI_ADDRESS_SPACE 118
816 #define KVM_CAP_GUEST_DEBUG_HW_BPS 119
817 #define KVM_CAP_GUEST_DEBUG_HW_WPS 120
818 #define KVM_CAP_SPLIT_IRQCHIP 121
819 #define KVM_CAP_IOEVENTFD_ANY_LENGTH 122
820 #define KVM_CAP_HYPERV_SYNIC 123
821 #define KVM_CAP_S390_RI 124
822 #define KVM_CAP_SPAPR_TCE_64 125
823 #define KVM_CAP_ARM_PMU_V3 126
824 #define KVM_CAP_VCPU_ATTRIBUTES 127
825 #define KVM_CAP_MAX_VCPU_ID 128
826 #define KVM_CAP_X2APIC_API 129
827 #define KVM_CAP_S390_USER_INSTR0 130
828 #define KVM_CAP_MSI_DEVID 131
829 #define KVM_CAP_PPC_HTM 132
830 #define KVM_CAP_SPAPR_RESIZE_HPT 133
831 #define KVM_CAP_PPC_MMU_RADIX 134
832 #define KVM_CAP_PPC_MMU_HASH_V3 135
833 #define KVM_CAP_IMMEDIATE_EXIT 136
834 #define KVM_CAP_MIPS_VZ 137
835 #define KVM_CAP_MIPS_TE 138
836 #define KVM_CAP_MIPS_64BIT 139
837 #define KVM_CAP_S390_GS 140
838 #define KVM_CAP_S390_AIS 141
839 #define KVM_CAP_SPAPR_TCE_VFIO 142
840 #define KVM_CAP_X86_DISABLE_EXITS 143
841 #define KVM_CAP_ARM_USER_IRQ 144
842 #define KVM_CAP_S390_CMMA_MIGRATION 145
843 #define KVM_CAP_PPC_FWNMI 146
844 #define KVM_CAP_PPC_SMT_POSSIBLE 147
845 #define KVM_CAP_HYPERV_SYNIC2 148
846 #define KVM_CAP_HYPERV_VP_INDEX 149
847 #define KVM_CAP_S390_AIS_MIGRATION 150
848 #define KVM_CAP_PPC_GET_CPU_CHAR 151
849 #define KVM_CAP_S390_BPB 152
850 #define KVM_CAP_GET_MSR_FEATURES 153
851 #define KVM_CAP_HYPERV_EVENTFD 154
852 #define KVM_CAP_HYPERV_TLBFLUSH 155
853 #define KVM_CAP_S390_HPAGE_1M 156
854 #define KVM_CAP_NESTED_STATE 157
855 #define KVM_CAP_ARM_INJECT_SERROR_ESR 158
856 #define KVM_CAP_MSR_PLATFORM_INFO 159
857 #define KVM_CAP_PPC_NESTED_HV 160
858 #define KVM_CAP_HYPERV_SEND_IPI 161
859 #define KVM_CAP_COALESCED_PIO 162
860 #define KVM_CAP_HYPERV_ENLIGHTENED_VMCS 163
861 #define KVM_CAP_EXCEPTION_PAYLOAD 164
862 #define KVM_CAP_ARM_VM_IPA_SIZE 165
863 #define KVM_CAP_MANUAL_DIRTY_LOG_PROTECT 166 /* Obsolete */
864 #define KVM_CAP_HYPERV_CPUID 167
865 #define KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2 168
866 #define KVM_CAP_PPC_IRQ_XIVE 169
867 #define KVM_CAP_ARM_SVE 170
868 #define KVM_CAP_ARM_PTRAUTH_ADDRESS 171
869 #define KVM_CAP_ARM_PTRAUTH_GENERIC 172
870 #define KVM_CAP_PMU_EVENT_FILTER 173
871 #define KVM_CAP_ARM_IRQ_LINE_LAYOUT_2 174
872 #define KVM_CAP_HYPERV_DIRECT_TLBFLUSH 175
873 #define KVM_CAP_PPC_GUEST_DEBUG_SSTEP 176
874 #define KVM_CAP_ARM_NISV_TO_USER 177
875 #define KVM_CAP_ARM_INJECT_EXT_DABT 178
876 #define KVM_CAP_S390_VCPU_RESETS 179
877 #define KVM_CAP_S390_PROTECTED 180
878 #define KVM_CAP_PPC_SECURE_GUEST 181
879 #define KVM_CAP_HALT_POLL 182
880 #define KVM_CAP_ASYNC_PF_INT 183
881 #define KVM_CAP_LAST_CPU 184
882 #define KVM_CAP_SMALLER_MAXPHYADDR 185
883 #define KVM_CAP_S390_DIAG318 186
884 #define KVM_CAP_STEAL_TIME 187
885 #define KVM_CAP_X86_USER_SPACE_MSR 188
886 #define KVM_CAP_X86_MSR_FILTER 189
887 #define KVM_CAP_ENFORCE_PV_FEATURE_CPUID 190
888 #define KVM_CAP_SYS_HYPERV_CPUID 191
889 #define KVM_CAP_DIRTY_LOG_RING 192
890 #define KVM_CAP_X86_BUS_LOCK_EXIT 193
891 #define KVM_CAP_PPC_DAWR1 194
892 #define KVM_CAP_SET_GUEST_DEBUG2 195
893 #define KVM_CAP_SGX_ATTRIBUTE 196
894 #define KVM_CAP_VM_COPY_ENC_CONTEXT_FROM 197
895 #define KVM_CAP_PTP_KVM 198
896 #define KVM_CAP_HYPERV_ENFORCE_CPUID 199
897 #define KVM_CAP_SREGS2 200
898 #define KVM_CAP_EXIT_HYPERCALL 201
899 #define KVM_CAP_PPC_RPT_INVALIDATE 202
900 #define KVM_CAP_BINARY_STATS_FD 203
901 #define KVM_CAP_EXIT_ON_EMULATION_FAILURE 204
902 #define KVM_CAP_ARM_MTE 205
903 #define KVM_CAP_VM_MOVE_ENC_CONTEXT_FROM 206
904 #define KVM_CAP_VM_GPA_BITS 207
905 #define KVM_CAP_XSAVE2 208
906 #define KVM_CAP_SYS_ATTRIBUTES 209
907 #define KVM_CAP_PPC_AIL_MODE_3 210
908 #define KVM_CAP_S390_MEM_OP_EXTENSION 211
909 #define KVM_CAP_PMU_CAPABILITY 212
910 #define KVM_CAP_DISABLE_QUIRKS2 213
911 #define KVM_CAP_VM_TSC_CONTROL 214
912 #define KVM_CAP_SYSTEM_EVENT_DATA 215
913 #define KVM_CAP_ARM_SYSTEM_SUSPEND 216
914 #define KVM_CAP_S390_PROTECTED_DUMP 217
915 #define KVM_CAP_X86_TRIPLE_FAULT_EVENT 218
916 #define KVM_CAP_X86_NOTIFY_VMEXIT 219
917 #define KVM_CAP_VM_DISABLE_NX_HUGE_PAGES 220
918 #define KVM_CAP_S390_ZPCI_OP 221
919 #define KVM_CAP_S390_CPU_TOPOLOGY 222
920 #define KVM_CAP_DIRTY_LOG_RING_ACQ_REL 223
921 #define KVM_CAP_S390_PROTECTED_ASYNC_DISABLE 224
922 #define KVM_CAP_DIRTY_LOG_RING_WITH_BITMAP 225
923 #define KVM_CAP_PMU_EVENT_MASKED_EVENTS 226
924 #define KVM_CAP_COUNTER_OFFSET 227
925 #define KVM_CAP_ARM_EAGER_SPLIT_CHUNK_SIZE 228
926 #define KVM_CAP_ARM_SUPPORTED_BLOCK_SIZES 229
927 #define KVM_CAP_ARM_SUPPORTED_REG_MASK_RANGES 230
928 #define KVM_CAP_USER_MEMORY2 231
929 #define KVM_CAP_MEMORY_FAULT_INFO 232
930 #define KVM_CAP_MEMORY_ATTRIBUTES 233
931 #define KVM_CAP_GUEST_MEMFD 234
932 #define KVM_CAP_VM_TYPES 235
933 #define KVM_CAP_PRE_FAULT_MEMORY 236
934 #define KVM_CAP_X86_APIC_BUS_CYCLES_NS 237
935 #define KVM_CAP_X86_GUEST_MODE 238
936
937 struct kvm_irq_routing_irqchip {
938 __u32 irqchip;
939 __u32 pin;
940 };
941
942 struct kvm_irq_routing_msi {
943 __u32 address_lo;
944 __u32 address_hi;
945 __u32 data;
946 union {
947 __u32 pad;
948 __u32 devid;
949 };
950 };
951
952 struct kvm_irq_routing_s390_adapter {
953 __u64 ind_addr;
954 __u64 summary_addr;
955 __u64 ind_offset;
956 __u32 summary_offset;
957 __u32 adapter_id;
958 };
959
960 struct kvm_irq_routing_hv_sint {
961 __u32 vcpu;
962 __u32 sint;
963 };
964
965 struct kvm_irq_routing_xen_evtchn {
966 __u32 port;
967 __u32 vcpu;
968 __u32 priority;
969 };
970
971 #define KVM_IRQ_ROUTING_XEN_EVTCHN_PRIO_2LEVEL ((__u32)(-1))
972
973 /* gsi routing entry types */
974 #define KVM_IRQ_ROUTING_IRQCHIP 1
975 #define KVM_IRQ_ROUTING_MSI 2
976 #define KVM_IRQ_ROUTING_S390_ADAPTER 3
977 #define KVM_IRQ_ROUTING_HV_SINT 4
978 #define KVM_IRQ_ROUTING_XEN_EVTCHN 5
979
980 struct kvm_irq_routing_entry {
981 __u32 gsi;
982 __u32 type;
983 __u32 flags;
984 __u32 pad;
985 union {
986 struct kvm_irq_routing_irqchip irqchip;
987 struct kvm_irq_routing_msi msi;
988 struct kvm_irq_routing_s390_adapter adapter;
989 struct kvm_irq_routing_hv_sint hv_sint;
990 struct kvm_irq_routing_xen_evtchn xen_evtchn;
991 __u32 pad[8];
992 } u;
993 };
994
995 struct kvm_irq_routing {
996 __u32 nr;
997 __u32 flags;
998 struct kvm_irq_routing_entry entries[];
999 };
1000
1001 #define KVM_IRQFD_FLAG_DEASSIGN (1 << 0)
1002 /*
1003 * Available with KVM_CAP_IRQFD_RESAMPLE
1004 *
1005 * KVM_IRQFD_FLAG_RESAMPLE indicates resamplefd is valid and specifies
1006 * the irqfd to operate in resampling mode for level triggered interrupt
1007 * emulation. See Documentation/virt/kvm/api.rst.
1008 */
1009 #define KVM_IRQFD_FLAG_RESAMPLE (1 << 1)
1010
1011 struct kvm_irqfd {
1012 __u32 fd;
1013 __u32 gsi;
1014 __u32 flags;
1015 __u32 resamplefd;
1016 __u8 pad[16];
1017 };
1018
1019 /* For KVM_CAP_ADJUST_CLOCK */
1020
1021 /* Do not use 1, KVM_CHECK_EXTENSION returned it before we had flags. */
1022 #define KVM_CLOCK_TSC_STABLE 2
1023 #define KVM_CLOCK_REALTIME (1 << 2)
1024 #define KVM_CLOCK_HOST_TSC (1 << 3)
1025
1026 struct kvm_clock_data {
1027 __u64 clock;
1028 __u32 flags;
1029 __u32 pad0;
1030 __u64 realtime;
1031 __u64 host_tsc;
1032 __u32 pad[4];
1033 };
1034
1035 /* For KVM_CAP_SW_TLB */
1036
1037 #define KVM_MMU_FSL_BOOKE_NOHV 0
1038 #define KVM_MMU_FSL_BOOKE_HV 1
1039
1040 struct kvm_config_tlb {
1041 __u64 params;
1042 __u64 array;
1043 __u32 mmu_type;
1044 __u32 array_len;
1045 };
1046
1047 struct kvm_dirty_tlb {
1048 __u64 bitmap;
1049 __u32 num_dirty;
1050 };
1051
1052 /* Available with KVM_CAP_ONE_REG */
1053
1054 #define KVM_REG_ARCH_MASK 0xff00000000000000ULL
1055 #define KVM_REG_GENERIC 0x0000000000000000ULL
1056
1057 /*
1058 * Architecture specific registers are to be defined in arch headers and
1059 * ORed with the arch identifier.
1060 */
1061 #define KVM_REG_PPC 0x1000000000000000ULL
1062 #define KVM_REG_X86 0x2000000000000000ULL
1063 #define KVM_REG_IA64 0x3000000000000000ULL
1064 #define KVM_REG_ARM 0x4000000000000000ULL
1065 #define KVM_REG_S390 0x5000000000000000ULL
1066 #define KVM_REG_ARM64 0x6000000000000000ULL
1067 #define KVM_REG_MIPS 0x7000000000000000ULL
1068 #define KVM_REG_RISCV 0x8000000000000000ULL
1069 #define KVM_REG_LOONGARCH 0x9000000000000000ULL
1070
1071 #define KVM_REG_SIZE_SHIFT 52
1072 #define KVM_REG_SIZE_MASK 0x00f0000000000000ULL
1073 #define KVM_REG_SIZE_U8 0x0000000000000000ULL
1074 #define KVM_REG_SIZE_U16 0x0010000000000000ULL
1075 #define KVM_REG_SIZE_U32 0x0020000000000000ULL
1076 #define KVM_REG_SIZE_U64 0x0030000000000000ULL
1077 #define KVM_REG_SIZE_U128 0x0040000000000000ULL
1078 #define KVM_REG_SIZE_U256 0x0050000000000000ULL
1079 #define KVM_REG_SIZE_U512 0x0060000000000000ULL
1080 #define KVM_REG_SIZE_U1024 0x0070000000000000ULL
1081 #define KVM_REG_SIZE_U2048 0x0080000000000000ULL
1082
1083 struct kvm_reg_list {
1084 __u64 n; /* number of regs */
1085 __u64 reg[];
1086 };
1087
1088 struct kvm_one_reg {
1089 __u64 id;
1090 __u64 addr;
1091 };
1092
1093 #define KVM_MSI_VALID_DEVID (1U << 0)
1094 struct kvm_msi {
1095 __u32 address_lo;
1096 __u32 address_hi;
1097 __u32 data;
1098 __u32 flags;
1099 __u32 devid;
1100 __u8 pad[12];
1101 };
1102
1103 struct kvm_arm_device_addr {
1104 __u64 id;
1105 __u64 addr;
1106 };
1107
1108 /*
1109 * Device control API, available with KVM_CAP_DEVICE_CTRL
1110 */
1111 #define KVM_CREATE_DEVICE_TEST 1
1112
1113 struct kvm_create_device {
1114 __u32 type; /* in: KVM_DEV_TYPE_xxx */
1115 __u32 fd; /* out: device handle */
1116 __u32 flags; /* in: KVM_CREATE_DEVICE_xxx */
1117 };
1118
1119 struct kvm_device_attr {
1120 __u32 flags; /* no flags currently defined */
1121 __u32 group; /* device-defined */
1122 __u64 attr; /* group-defined */
1123 __u64 addr; /* userspace address of attr data */
1124 };
1125
1126 #define KVM_DEV_VFIO_FILE 1
1127
1128 #define KVM_DEV_VFIO_FILE_ADD 1
1129 #define KVM_DEV_VFIO_FILE_DEL 2
1130
1131 /* KVM_DEV_VFIO_GROUP aliases are for compile time uapi compatibility */
1132 #define KVM_DEV_VFIO_GROUP KVM_DEV_VFIO_FILE
1133
1134 #define KVM_DEV_VFIO_GROUP_ADD KVM_DEV_VFIO_FILE_ADD
1135 #define KVM_DEV_VFIO_GROUP_DEL KVM_DEV_VFIO_FILE_DEL
1136 #define KVM_DEV_VFIO_GROUP_SET_SPAPR_TCE 3
1137
1138 enum kvm_device_type {
1139 KVM_DEV_TYPE_FSL_MPIC_20 = 1,
1140 #define KVM_DEV_TYPE_FSL_MPIC_20 KVM_DEV_TYPE_FSL_MPIC_20
1141 KVM_DEV_TYPE_FSL_MPIC_42,
1142 #define KVM_DEV_TYPE_FSL_MPIC_42 KVM_DEV_TYPE_FSL_MPIC_42
1143 KVM_DEV_TYPE_XICS,
1144 #define KVM_DEV_TYPE_XICS KVM_DEV_TYPE_XICS
1145 KVM_DEV_TYPE_VFIO,
1146 #define KVM_DEV_TYPE_VFIO KVM_DEV_TYPE_VFIO
1147 KVM_DEV_TYPE_ARM_VGIC_V2,
1148 #define KVM_DEV_TYPE_ARM_VGIC_V2 KVM_DEV_TYPE_ARM_VGIC_V2
1149 KVM_DEV_TYPE_FLIC,
1150 #define KVM_DEV_TYPE_FLIC KVM_DEV_TYPE_FLIC
1151 KVM_DEV_TYPE_ARM_VGIC_V3,
1152 #define KVM_DEV_TYPE_ARM_VGIC_V3 KVM_DEV_TYPE_ARM_VGIC_V3
1153 KVM_DEV_TYPE_ARM_VGIC_ITS,
1154 #define KVM_DEV_TYPE_ARM_VGIC_ITS KVM_DEV_TYPE_ARM_VGIC_ITS
1155 KVM_DEV_TYPE_XIVE,
1156 #define KVM_DEV_TYPE_XIVE KVM_DEV_TYPE_XIVE
1157 KVM_DEV_TYPE_ARM_PV_TIME,
1158 #define KVM_DEV_TYPE_ARM_PV_TIME KVM_DEV_TYPE_ARM_PV_TIME
1159 KVM_DEV_TYPE_RISCV_AIA,
1160 #define KVM_DEV_TYPE_RISCV_AIA KVM_DEV_TYPE_RISCV_AIA
1161 KVM_DEV_TYPE_MAX,
1162 };
1163
1164 struct kvm_vfio_spapr_tce {
1165 __s32 groupfd;
1166 __s32 tablefd;
1167 };
1168
1169 /*
1170 * KVM_CREATE_VCPU receives as a parameter the vcpu slot, and returns
1171 * a vcpu fd.
1172 */
1173 #define KVM_CREATE_VCPU _IO(KVMIO, 0x41)
1174 #define KVM_GET_DIRTY_LOG _IOW(KVMIO, 0x42, struct kvm_dirty_log)
1175 #define KVM_SET_NR_MMU_PAGES _IO(KVMIO, 0x44)
1176 #define KVM_GET_NR_MMU_PAGES _IO(KVMIO, 0x45) /* deprecated */
1177 #define KVM_SET_USER_MEMORY_REGION _IOW(KVMIO, 0x46, \
1178 struct kvm_userspace_memory_region)
1179 #define KVM_SET_TSS_ADDR _IO(KVMIO, 0x47)
1180 #define KVM_SET_IDENTITY_MAP_ADDR _IOW(KVMIO, 0x48, __u64)
1181 #define KVM_SET_USER_MEMORY_REGION2 _IOW(KVMIO, 0x49, \
1182 struct kvm_userspace_memory_region2)
1183
1184 /* enable ucontrol for s390 */
1185 #define KVM_S390_UCAS_MAP _IOW(KVMIO, 0x50, struct kvm_s390_ucas_mapping)
1186 #define KVM_S390_UCAS_UNMAP _IOW(KVMIO, 0x51, struct kvm_s390_ucas_mapping)
1187 #define KVM_S390_VCPU_FAULT _IOW(KVMIO, 0x52, unsigned long)
1188
1189 /* Device model IOC */
1190 #define KVM_CREATE_IRQCHIP _IO(KVMIO, 0x60)
1191 #define KVM_IRQ_LINE _IOW(KVMIO, 0x61, struct kvm_irq_level)
1192 #define KVM_GET_IRQCHIP _IOWR(KVMIO, 0x62, struct kvm_irqchip)
1193 #define KVM_SET_IRQCHIP _IOR(KVMIO, 0x63, struct kvm_irqchip)
1194 #define KVM_CREATE_PIT _IO(KVMIO, 0x64)
1195 #define KVM_GET_PIT _IOWR(KVMIO, 0x65, struct kvm_pit_state)
1196 #define KVM_SET_PIT _IOR(KVMIO, 0x66, struct kvm_pit_state)
1197 #define KVM_IRQ_LINE_STATUS _IOWR(KVMIO, 0x67, struct kvm_irq_level)
1198 #define KVM_REGISTER_COALESCED_MMIO \
1199 _IOW(KVMIO, 0x67, struct kvm_coalesced_mmio_zone)
1200 #define KVM_UNREGISTER_COALESCED_MMIO \
1201 _IOW(KVMIO, 0x68, struct kvm_coalesced_mmio_zone)
1202 #define KVM_SET_GSI_ROUTING _IOW(KVMIO, 0x6a, struct kvm_irq_routing)
1203 #define KVM_REINJECT_CONTROL _IO(KVMIO, 0x71)
1204 #define KVM_IRQFD _IOW(KVMIO, 0x76, struct kvm_irqfd)
1205 #define KVM_CREATE_PIT2 _IOW(KVMIO, 0x77, struct kvm_pit_config)
1206 #define KVM_SET_BOOT_CPU_ID _IO(KVMIO, 0x78)
1207 #define KVM_IOEVENTFD _IOW(KVMIO, 0x79, struct kvm_ioeventfd)
1208 #define KVM_XEN_HVM_CONFIG _IOW(KVMIO, 0x7a, struct kvm_xen_hvm_config)
1209 #define KVM_SET_CLOCK _IOW(KVMIO, 0x7b, struct kvm_clock_data)
1210 #define KVM_GET_CLOCK _IOR(KVMIO, 0x7c, struct kvm_clock_data)
1211 /* Available with KVM_CAP_PIT_STATE2 */
1212 #define KVM_GET_PIT2 _IOR(KVMIO, 0x9f, struct kvm_pit_state2)
1213 #define KVM_SET_PIT2 _IOW(KVMIO, 0xa0, struct kvm_pit_state2)
1214 /* Available with KVM_CAP_PPC_GET_PVINFO */
1215 #define KVM_PPC_GET_PVINFO _IOW(KVMIO, 0xa1, struct kvm_ppc_pvinfo)
1216 /* Available with KVM_CAP_TSC_CONTROL for a vCPU, or with
1217 * KVM_CAP_VM_TSC_CONTROL to set defaults for a VM */
1218 #define KVM_SET_TSC_KHZ _IO(KVMIO, 0xa2)
1219 #define KVM_GET_TSC_KHZ _IO(KVMIO, 0xa3)
1220 /* Available with KVM_CAP_SIGNAL_MSI */
1221 #define KVM_SIGNAL_MSI _IOW(KVMIO, 0xa5, struct kvm_msi)
1222 /* Available with KVM_CAP_PPC_GET_SMMU_INFO */
1223 #define KVM_PPC_GET_SMMU_INFO _IOR(KVMIO, 0xa6, struct kvm_ppc_smmu_info)
1224 /* Available with KVM_CAP_PPC_ALLOC_HTAB */
1225 #define KVM_PPC_ALLOCATE_HTAB _IOWR(KVMIO, 0xa7, __u32)
1226 #define KVM_CREATE_SPAPR_TCE _IOW(KVMIO, 0xa8, struct kvm_create_spapr_tce)
1227 #define KVM_CREATE_SPAPR_TCE_64 _IOW(KVMIO, 0xa8, \
1228 struct kvm_create_spapr_tce_64)
1229 /* Available with KVM_CAP_RMA */
1230 #define KVM_ALLOCATE_RMA _IOR(KVMIO, 0xa9, struct kvm_allocate_rma)
1231 /* Available with KVM_CAP_PPC_HTAB_FD */
1232 #define KVM_PPC_GET_HTAB_FD _IOW(KVMIO, 0xaa, struct kvm_get_htab_fd)
1233 /* Available with KVM_CAP_ARM_SET_DEVICE_ADDR */
1234 #define KVM_ARM_SET_DEVICE_ADDR _IOW(KVMIO, 0xab, struct kvm_arm_device_addr)
1235 /* Available with KVM_CAP_PPC_RTAS */
1236 #define KVM_PPC_RTAS_DEFINE_TOKEN _IOW(KVMIO, 0xac, struct kvm_rtas_token_args)
1237 /* Available with KVM_CAP_SPAPR_RESIZE_HPT */
1238 #define KVM_PPC_RESIZE_HPT_PREPARE _IOR(KVMIO, 0xad, struct kvm_ppc_resize_hpt)
1239 #define KVM_PPC_RESIZE_HPT_COMMIT _IOR(KVMIO, 0xae, struct kvm_ppc_resize_hpt)
1240 /* Available with KVM_CAP_PPC_MMU_RADIX or KVM_CAP_PPC_MMU_HASH_V3 */
1241 #define KVM_PPC_CONFIGURE_V3_MMU _IOW(KVMIO, 0xaf, struct kvm_ppc_mmuv3_cfg)
1242 /* Available with KVM_CAP_PPC_MMU_RADIX */
1243 #define KVM_PPC_GET_RMMU_INFO _IOW(KVMIO, 0xb0, struct kvm_ppc_rmmu_info)
1244 /* Available with KVM_CAP_PPC_GET_CPU_CHAR */
1245 #define KVM_PPC_GET_CPU_CHAR _IOR(KVMIO, 0xb1, struct kvm_ppc_cpu_char)
1246 /* Available with KVM_CAP_PMU_EVENT_FILTER */
1247 #define KVM_SET_PMU_EVENT_FILTER _IOW(KVMIO, 0xb2, struct kvm_pmu_event_filter)
1248 #define KVM_PPC_SVM_OFF _IO(KVMIO, 0xb3)
1249 #define KVM_ARM_MTE_COPY_TAGS _IOR(KVMIO, 0xb4, struct kvm_arm_copy_mte_tags)
1250 /* Available with KVM_CAP_COUNTER_OFFSET */
1251 #define KVM_ARM_SET_COUNTER_OFFSET _IOW(KVMIO, 0xb5, struct kvm_arm_counter_offset)
1252 #define KVM_ARM_GET_REG_WRITABLE_MASKS _IOR(KVMIO, 0xb6, struct reg_mask_range)
1253
1254 /* ioctl for vm fd */
1255 #define KVM_CREATE_DEVICE _IOWR(KVMIO, 0xe0, struct kvm_create_device)
1256
1257 /* ioctls for fds returned by KVM_CREATE_DEVICE */
1258 #define KVM_SET_DEVICE_ATTR _IOW(KVMIO, 0xe1, struct kvm_device_attr)
1259 #define KVM_GET_DEVICE_ATTR _IOW(KVMIO, 0xe2, struct kvm_device_attr)
1260 #define KVM_HAS_DEVICE_ATTR _IOW(KVMIO, 0xe3, struct kvm_device_attr)
1261
1262 /*
1263 * ioctls for vcpu fds
1264 */
1265 #define KVM_RUN _IO(KVMIO, 0x80)
1266 #define KVM_GET_REGS _IOR(KVMIO, 0x81, struct kvm_regs)
1267 #define KVM_SET_REGS _IOW(KVMIO, 0x82, struct kvm_regs)
1268 #define KVM_GET_SREGS _IOR(KVMIO, 0x83, struct kvm_sregs)
1269 #define KVM_SET_SREGS _IOW(KVMIO, 0x84, struct kvm_sregs)
1270 #define KVM_TRANSLATE _IOWR(KVMIO, 0x85, struct kvm_translation)
1271 #define KVM_INTERRUPT _IOW(KVMIO, 0x86, struct kvm_interrupt)
1272 #define KVM_GET_MSRS _IOWR(KVMIO, 0x88, struct kvm_msrs)
1273 #define KVM_SET_MSRS _IOW(KVMIO, 0x89, struct kvm_msrs)
1274 #define KVM_SET_CPUID _IOW(KVMIO, 0x8a, struct kvm_cpuid)
1275 #define KVM_SET_SIGNAL_MASK _IOW(KVMIO, 0x8b, struct kvm_signal_mask)
1276 #define KVM_GET_FPU _IOR(KVMIO, 0x8c, struct kvm_fpu)
1277 #define KVM_SET_FPU _IOW(KVMIO, 0x8d, struct kvm_fpu)
1278 #define KVM_GET_LAPIC _IOR(KVMIO, 0x8e, struct kvm_lapic_state)
1279 #define KVM_SET_LAPIC _IOW(KVMIO, 0x8f, struct kvm_lapic_state)
1280 #define KVM_SET_CPUID2 _IOW(KVMIO, 0x90, struct kvm_cpuid2)
1281 #define KVM_GET_CPUID2 _IOWR(KVMIO, 0x91, struct kvm_cpuid2)
1282 /* Available with KVM_CAP_VAPIC */
1283 #define KVM_TPR_ACCESS_REPORTING _IOWR(KVMIO, 0x92, struct kvm_tpr_access_ctl)
1284 /* Available with KVM_CAP_VAPIC */
1285 #define KVM_SET_VAPIC_ADDR _IOW(KVMIO, 0x93, struct kvm_vapic_addr)
1286 /* valid for virtual machine (for floating interrupt)_and_ vcpu */
1287 #define KVM_S390_INTERRUPT _IOW(KVMIO, 0x94, struct kvm_s390_interrupt)
1288 /* store status for s390 */
1289 #define KVM_S390_STORE_STATUS_NOADDR (-1ul)
1290 #define KVM_S390_STORE_STATUS_PREFIXED (-2ul)
1291 #define KVM_S390_STORE_STATUS _IOW(KVMIO, 0x95, unsigned long)
1292 /* initial ipl psw for s390 */
1293 #define KVM_S390_SET_INITIAL_PSW _IOW(KVMIO, 0x96, struct kvm_s390_psw)
1294 /* initial reset for s390 */
1295 #define KVM_S390_INITIAL_RESET _IO(KVMIO, 0x97)
1296 #define KVM_GET_MP_STATE _IOR(KVMIO, 0x98, struct kvm_mp_state)
1297 #define KVM_SET_MP_STATE _IOW(KVMIO, 0x99, struct kvm_mp_state)
1298 /* Available with KVM_CAP_USER_NMI */
1299 #define KVM_NMI _IO(KVMIO, 0x9a)
1300 /* Available with KVM_CAP_SET_GUEST_DEBUG */
1301 #define KVM_SET_GUEST_DEBUG _IOW(KVMIO, 0x9b, struct kvm_guest_debug)
1302 /* MCE for x86 */
1303 #define KVM_X86_SETUP_MCE _IOW(KVMIO, 0x9c, __u64)
1304 #define KVM_X86_GET_MCE_CAP_SUPPORTED _IOR(KVMIO, 0x9d, __u64)
1305 #define KVM_X86_SET_MCE _IOW(KVMIO, 0x9e, struct kvm_x86_mce)
1306 /* Available with KVM_CAP_VCPU_EVENTS */
1307 #define KVM_GET_VCPU_EVENTS _IOR(KVMIO, 0x9f, struct kvm_vcpu_events)
1308 #define KVM_SET_VCPU_EVENTS _IOW(KVMIO, 0xa0, struct kvm_vcpu_events)
1309 /* Available with KVM_CAP_DEBUGREGS */
1310 #define KVM_GET_DEBUGREGS _IOR(KVMIO, 0xa1, struct kvm_debugregs)
1311 #define KVM_SET_DEBUGREGS _IOW(KVMIO, 0xa2, struct kvm_debugregs)
1312 /*
1313 * vcpu version available with KVM_CAP_ENABLE_CAP
1314 * vm version available with KVM_CAP_ENABLE_CAP_VM
1315 */
1316 #define KVM_ENABLE_CAP _IOW(KVMIO, 0xa3, struct kvm_enable_cap)
1317 /* Available with KVM_CAP_XSAVE */
1318 #define KVM_GET_XSAVE _IOR(KVMIO, 0xa4, struct kvm_xsave)
1319 #define KVM_SET_XSAVE _IOW(KVMIO, 0xa5, struct kvm_xsave)
1320 /* Available with KVM_CAP_XCRS */
1321 #define KVM_GET_XCRS _IOR(KVMIO, 0xa6, struct kvm_xcrs)
1322 #define KVM_SET_XCRS _IOW(KVMIO, 0xa7, struct kvm_xcrs)
1323 /* Available with KVM_CAP_SW_TLB */
1324 #define KVM_DIRTY_TLB _IOW(KVMIO, 0xaa, struct kvm_dirty_tlb)
1325 /* Available with KVM_CAP_ONE_REG */
1326 #define KVM_GET_ONE_REG _IOW(KVMIO, 0xab, struct kvm_one_reg)
1327 #define KVM_SET_ONE_REG _IOW(KVMIO, 0xac, struct kvm_one_reg)
1328 /* VM is being stopped by host */
1329 #define KVM_KVMCLOCK_CTRL _IO(KVMIO, 0xad)
1330 #define KVM_ARM_VCPU_INIT _IOW(KVMIO, 0xae, struct kvm_vcpu_init)
1331 #define KVM_ARM_PREFERRED_TARGET _IOR(KVMIO, 0xaf, struct kvm_vcpu_init)
1332 #define KVM_GET_REG_LIST _IOWR(KVMIO, 0xb0, struct kvm_reg_list)
1333 /* Available with KVM_CAP_S390_MEM_OP */
1334 #define KVM_S390_MEM_OP _IOW(KVMIO, 0xb1, struct kvm_s390_mem_op)
1335 /* Available with KVM_CAP_S390_SKEYS */
1336 #define KVM_S390_GET_SKEYS _IOW(KVMIO, 0xb2, struct kvm_s390_skeys)
1337 #define KVM_S390_SET_SKEYS _IOW(KVMIO, 0xb3, struct kvm_s390_skeys)
1338 /* Available with KVM_CAP_S390_INJECT_IRQ */
1339 #define KVM_S390_IRQ _IOW(KVMIO, 0xb4, struct kvm_s390_irq)
1340 /* Available with KVM_CAP_S390_IRQ_STATE */
1341 #define KVM_S390_SET_IRQ_STATE _IOW(KVMIO, 0xb5, struct kvm_s390_irq_state)
1342 #define KVM_S390_GET_IRQ_STATE _IOW(KVMIO, 0xb6, struct kvm_s390_irq_state)
1343 /* Available with KVM_CAP_X86_SMM */
1344 #define KVM_SMI _IO(KVMIO, 0xb7)
1345 /* Available with KVM_CAP_S390_CMMA_MIGRATION */
1346 #define KVM_S390_GET_CMMA_BITS _IOWR(KVMIO, 0xb8, struct kvm_s390_cmma_log)
1347 #define KVM_S390_SET_CMMA_BITS _IOW(KVMIO, 0xb9, struct kvm_s390_cmma_log)
1348 /* Memory Encryption Commands */
1349 #define KVM_MEMORY_ENCRYPT_OP _IOWR(KVMIO, 0xba, unsigned long)
1350
1351 struct kvm_enc_region {
1352 __u64 addr;
1353 __u64 size;
1354 };
1355
1356 #define KVM_MEMORY_ENCRYPT_REG_REGION _IOR(KVMIO, 0xbb, struct kvm_enc_region)
1357 #define KVM_MEMORY_ENCRYPT_UNREG_REGION _IOR(KVMIO, 0xbc, struct kvm_enc_region)
1358
1359 /* Available with KVM_CAP_HYPERV_EVENTFD */
1360 #define KVM_HYPERV_EVENTFD _IOW(KVMIO, 0xbd, struct kvm_hyperv_eventfd)
1361
1362 /* Available with KVM_CAP_NESTED_STATE */
1363 #define KVM_GET_NESTED_STATE _IOWR(KVMIO, 0xbe, struct kvm_nested_state)
1364 #define KVM_SET_NESTED_STATE _IOW(KVMIO, 0xbf, struct kvm_nested_state)
1365
1366 /* Available with KVM_CAP_MANUAL_DIRTY_LOG_PROTECT_2 */
1367 #define KVM_CLEAR_DIRTY_LOG _IOWR(KVMIO, 0xc0, struct kvm_clear_dirty_log)
1368
1369 /* Available with KVM_CAP_HYPERV_CPUID (vcpu) / KVM_CAP_SYS_HYPERV_CPUID (system) */
1370 #define KVM_GET_SUPPORTED_HV_CPUID _IOWR(KVMIO, 0xc1, struct kvm_cpuid2)
1371
1372 /* Available with KVM_CAP_ARM_SVE */
1373 #define KVM_ARM_VCPU_FINALIZE _IOW(KVMIO, 0xc2, int)
1374
1375 /* Available with KVM_CAP_S390_VCPU_RESETS */
1376 #define KVM_S390_NORMAL_RESET _IO(KVMIO, 0xc3)
1377 #define KVM_S390_CLEAR_RESET _IO(KVMIO, 0xc4)
1378
1379 /* Available with KVM_CAP_S390_PROTECTED */
1380 #define KVM_S390_PV_COMMAND _IOWR(KVMIO, 0xc5, struct kvm_pv_cmd)
1381
1382 /* Available with KVM_CAP_X86_MSR_FILTER */
1383 #define KVM_X86_SET_MSR_FILTER _IOW(KVMIO, 0xc6, struct kvm_msr_filter)
1384
1385 /* Available with KVM_CAP_DIRTY_LOG_RING */
1386 #define KVM_RESET_DIRTY_RINGS _IO(KVMIO, 0xc7)
1387
1388 /* Per-VM Xen attributes */
1389 #define KVM_XEN_HVM_GET_ATTR _IOWR(KVMIO, 0xc8, struct kvm_xen_hvm_attr)
1390 #define KVM_XEN_HVM_SET_ATTR _IOW(KVMIO, 0xc9, struct kvm_xen_hvm_attr)
1391
1392 /* Per-vCPU Xen attributes */
1393 #define KVM_XEN_VCPU_GET_ATTR _IOWR(KVMIO, 0xca, struct kvm_xen_vcpu_attr)
1394 #define KVM_XEN_VCPU_SET_ATTR _IOW(KVMIO, 0xcb, struct kvm_xen_vcpu_attr)
1395
1396 /* Available with KVM_CAP_XEN_HVM / KVM_XEN_HVM_CONFIG_EVTCHN_SEND */
1397 #define KVM_XEN_HVM_EVTCHN_SEND _IOW(KVMIO, 0xd0, struct kvm_irq_routing_xen_evtchn)
1398
1399 #define KVM_GET_SREGS2 _IOR(KVMIO, 0xcc, struct kvm_sregs2)
1400 #define KVM_SET_SREGS2 _IOW(KVMIO, 0xcd, struct kvm_sregs2)
1401
1402 #define KVM_DIRTY_LOG_MANUAL_PROTECT_ENABLE (1 << 0)
1403 #define KVM_DIRTY_LOG_INITIALLY_SET (1 << 1)
1404
1405 /*
1406 * Arch needs to define the macro after implementing the dirty ring
1407 * feature. KVM_DIRTY_LOG_PAGE_OFFSET should be defined as the
1408 * starting page offset of the dirty ring structures.
1409 */
1410 #ifndef KVM_DIRTY_LOG_PAGE_OFFSET
1411 #define KVM_DIRTY_LOG_PAGE_OFFSET 0
1412 #endif
1413
1414 /*
1415 * KVM dirty GFN flags, defined as:
1416 *
1417 * |---------------+---------------+--------------|
1418 * | bit 1 (reset) | bit 0 (dirty) | Status |
1419 * |---------------+---------------+--------------|
1420 * | 0 | 0 | Invalid GFN |
1421 * | 0 | 1 | Dirty GFN |
1422 * | 1 | X | GFN to reset |
1423 * |---------------+---------------+--------------|
1424 *
1425 * Lifecycle of a dirty GFN goes like:
1426 *
1427 * dirtied harvested reset
1428 * 00 -----------> 01 -------------> 1X -------+
1429 * ^ |
1430 * | |
1431 * +------------------------------------------+
1432 *
1433 * The userspace program is only responsible for the 01->1X state
1434 * conversion after harvesting an entry. Also, it must not skip any
1435 * dirty bits, so that dirty bits are always harvested in sequence.
1436 */
1437 #define KVM_DIRTY_GFN_F_DIRTY _BITUL(0)
1438 #define KVM_DIRTY_GFN_F_RESET _BITUL(1)
1439 #define KVM_DIRTY_GFN_F_MASK 0x3
1440
1441 /*
1442 * KVM dirty rings should be mapped at KVM_DIRTY_LOG_PAGE_OFFSET of
1443 * per-vcpu mmaped regions as an array of struct kvm_dirty_gfn. The
1444 * size of the gfn buffer is decided by the first argument when
1445 * enabling KVM_CAP_DIRTY_LOG_RING.
1446 */
1447 struct kvm_dirty_gfn {
1448 __u32 flags;
1449 __u32 slot;
1450 __u64 offset;
1451 };
1452
1453 #define KVM_BUS_LOCK_DETECTION_OFF (1 << 0)
1454 #define KVM_BUS_LOCK_DETECTION_EXIT (1 << 1)
1455
1456 #define KVM_PMU_CAP_DISABLE (1 << 0)
1457
1458 /**
1459 * struct kvm_stats_header - Header of per vm/vcpu binary statistics data.
1460 * @flags: Some extra information for header, always 0 for now.
1461 * @name_size: The size in bytes of the memory which contains statistics
1462 * name string including trailing '\0'. The memory is allocated
1463 * at the send of statistics descriptor.
1464 * @num_desc: The number of statistics the vm or vcpu has.
1465 * @id_offset: The offset of the vm/vcpu stats' id string in the file pointed
1466 * by vm/vcpu stats fd.
1467 * @desc_offset: The offset of the vm/vcpu stats' descriptor block in the file
1468 * pointd by vm/vcpu stats fd.
1469 * @data_offset: The offset of the vm/vcpu stats' data block in the file
1470 * pointed by vm/vcpu stats fd.
1471 *
1472 * This is the header userspace needs to read from stats fd before any other
1473 * readings. It is used by userspace to discover all the information about the
1474 * vm/vcpu's binary statistics.
1475 * Userspace reads this header from the start of the vm/vcpu's stats fd.
1476 */
1477 struct kvm_stats_header {
1478 __u32 flags;
1479 __u32 name_size;
1480 __u32 num_desc;
1481 __u32 id_offset;
1482 __u32 desc_offset;
1483 __u32 data_offset;
1484 };
1485
1486 #define KVM_STATS_TYPE_SHIFT 0
1487 #define KVM_STATS_TYPE_MASK (0xF << KVM_STATS_TYPE_SHIFT)
1488 #define KVM_STATS_TYPE_CUMULATIVE (0x0 << KVM_STATS_TYPE_SHIFT)
1489 #define KVM_STATS_TYPE_INSTANT (0x1 << KVM_STATS_TYPE_SHIFT)
1490 #define KVM_STATS_TYPE_PEAK (0x2 << KVM_STATS_TYPE_SHIFT)
1491 #define KVM_STATS_TYPE_LINEAR_HIST (0x3 << KVM_STATS_TYPE_SHIFT)
1492 #define KVM_STATS_TYPE_LOG_HIST (0x4 << KVM_STATS_TYPE_SHIFT)
1493 #define KVM_STATS_TYPE_MAX KVM_STATS_TYPE_LOG_HIST
1494
1495 #define KVM_STATS_UNIT_SHIFT 4
1496 #define KVM_STATS_UNIT_MASK (0xF << KVM_STATS_UNIT_SHIFT)
1497 #define KVM_STATS_UNIT_NONE (0x0 << KVM_STATS_UNIT_SHIFT)
1498 #define KVM_STATS_UNIT_BYTES (0x1 << KVM_STATS_UNIT_SHIFT)
1499 #define KVM_STATS_UNIT_SECONDS (0x2 << KVM_STATS_UNIT_SHIFT)
1500 #define KVM_STATS_UNIT_CYCLES (0x3 << KVM_STATS_UNIT_SHIFT)
1501 #define KVM_STATS_UNIT_BOOLEAN (0x4 << KVM_STATS_UNIT_SHIFT)
1502 #define KVM_STATS_UNIT_MAX KVM_STATS_UNIT_BOOLEAN
1503
1504 #define KVM_STATS_BASE_SHIFT 8
1505 #define KVM_STATS_BASE_MASK (0xF << KVM_STATS_BASE_SHIFT)
1506 #define KVM_STATS_BASE_POW10 (0x0 << KVM_STATS_BASE_SHIFT)
1507 #define KVM_STATS_BASE_POW2 (0x1 << KVM_STATS_BASE_SHIFT)
1508 #define KVM_STATS_BASE_MAX KVM_STATS_BASE_POW2
1509
1510 /**
1511 * struct kvm_stats_desc - Descriptor of a KVM statistics.
1512 * @flags: Annotations of the stats, like type, unit, etc.
1513 * @exponent: Used together with @flags to determine the unit.
1514 * @size: The number of data items for this stats.
1515 * Every data item is of type __u64.
1516 * @offset: The offset of the stats to the start of stat structure in
1517 * structure kvm or kvm_vcpu.
1518 * @bucket_size: A parameter value used for histogram stats. It is only used
1519 * for linear histogram stats, specifying the size of the bucket;
1520 * @name: The name string for the stats. Its size is indicated by the
1521 * &kvm_stats_header->name_size.
1522 */
1523 struct kvm_stats_desc {
1524 __u32 flags;
1525 __s16 exponent;
1526 __u16 size;
1527 __u32 offset;
1528 __u32 bucket_size;
1529 char name[];
1530 };
1531
1532 #define KVM_GET_STATS_FD _IO(KVMIO, 0xce)
1533
1534 /* Available with KVM_CAP_XSAVE2 */
1535 #define KVM_GET_XSAVE2 _IOR(KVMIO, 0xcf, struct kvm_xsave)
1536
1537 /* Available with KVM_CAP_S390_PROTECTED_DUMP */
1538 #define KVM_S390_PV_CPU_COMMAND _IOWR(KVMIO, 0xd0, struct kvm_pv_cmd)
1539
1540 /* Available with KVM_CAP_X86_NOTIFY_VMEXIT */
1541 #define KVM_X86_NOTIFY_VMEXIT_ENABLED (1ULL << 0)
1542 #define KVM_X86_NOTIFY_VMEXIT_USER (1ULL << 1)
1543
1544 /* Available with KVM_CAP_S390_ZPCI_OP */
1545 #define KVM_S390_ZPCI_OP _IOW(KVMIO, 0xd1, struct kvm_s390_zpci_op)
1546
1547 /* Available with KVM_CAP_MEMORY_ATTRIBUTES */
1548 #define KVM_SET_MEMORY_ATTRIBUTES _IOW(KVMIO, 0xd2, struct kvm_memory_attributes)
1549
1550 struct kvm_memory_attributes {
1551 __u64 address;
1552 __u64 size;
1553 __u64 attributes;
1554 __u64 flags;
1555 };
1556
1557 #define KVM_MEMORY_ATTRIBUTE_PRIVATE (1ULL << 3)
1558
1559 #define KVM_CREATE_GUEST_MEMFD _IOWR(KVMIO, 0xd4, struct kvm_create_guest_memfd)
1560
1561 struct kvm_create_guest_memfd {
1562 __u64 size;
1563 __u64 flags;
1564 __u64 reserved[6];
1565 };
1566
1567 #define KVM_PRE_FAULT_MEMORY _IOWR(KVMIO, 0xd5, struct kvm_pre_fault_memory)
1568
1569 struct kvm_pre_fault_memory {
1570 __u64 gpa;
1571 __u64 size;
1572 __u64 flags;
1573 __u64 padding[5];
1574 };
1575
1576 #endif /* __LINUX_KVM_H */
1577
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