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