xref: /openbmc/qemu/linux-headers/linux/kvm.h (revision 5242ef88)
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 
14 #include <linux/ioctl.h>
15 #include <asm/kvm.h>
16 
17 #define KVM_API_VERSION 12
18 
19 /* *** Deprecated interfaces *** */
20 
21 #define KVM_TRC_SHIFT           16
22 
23 #define KVM_TRC_ENTRYEXIT       (1 << KVM_TRC_SHIFT)
24 #define KVM_TRC_HANDLER         (1 << (KVM_TRC_SHIFT + 1))
25 
26 #define KVM_TRC_VMENTRY         (KVM_TRC_ENTRYEXIT + 0x01)
27 #define KVM_TRC_VMEXIT          (KVM_TRC_ENTRYEXIT + 0x02)
28 #define KVM_TRC_PAGE_FAULT      (KVM_TRC_HANDLER + 0x01)
29 
30 #define KVM_TRC_HEAD_SIZE       12
31 #define KVM_TRC_CYCLE_SIZE      8
32 #define KVM_TRC_EXTRA_MAX       7
33 
34 #define KVM_TRC_INJ_VIRQ         (KVM_TRC_HANDLER + 0x02)
35 #define KVM_TRC_REDELIVER_EVT    (KVM_TRC_HANDLER + 0x03)
36 #define KVM_TRC_PEND_INTR        (KVM_TRC_HANDLER + 0x04)
37 #define KVM_TRC_IO_READ          (KVM_TRC_HANDLER + 0x05)
38 #define KVM_TRC_IO_WRITE         (KVM_TRC_HANDLER + 0x06)
39 #define KVM_TRC_CR_READ          (KVM_TRC_HANDLER + 0x07)
40 #define KVM_TRC_CR_WRITE         (KVM_TRC_HANDLER + 0x08)
41 #define KVM_TRC_DR_READ          (KVM_TRC_HANDLER + 0x09)
42 #define KVM_TRC_DR_WRITE         (KVM_TRC_HANDLER + 0x0A)
43 #define KVM_TRC_MSR_READ         (KVM_TRC_HANDLER + 0x0B)
44 #define KVM_TRC_MSR_WRITE        (KVM_TRC_HANDLER + 0x0C)
45 #define KVM_TRC_CPUID            (KVM_TRC_HANDLER + 0x0D)
46 #define KVM_TRC_INTR             (KVM_TRC_HANDLER + 0x0E)
47 #define KVM_TRC_NMI              (KVM_TRC_HANDLER + 0x0F)
48 #define KVM_TRC_VMMCALL          (KVM_TRC_HANDLER + 0x10)
49 #define KVM_TRC_HLT              (KVM_TRC_HANDLER + 0x11)
50 #define KVM_TRC_CLTS             (KVM_TRC_HANDLER + 0x12)
51 #define KVM_TRC_LMSW             (KVM_TRC_HANDLER + 0x13)
52 #define KVM_TRC_APIC_ACCESS      (KVM_TRC_HANDLER + 0x14)
53 #define KVM_TRC_TDP_FAULT        (KVM_TRC_HANDLER + 0x15)
54 #define KVM_TRC_GTLB_WRITE       (KVM_TRC_HANDLER + 0x16)
55 #define KVM_TRC_STLB_WRITE       (KVM_TRC_HANDLER + 0x17)
56 #define KVM_TRC_STLB_INVAL       (KVM_TRC_HANDLER + 0x18)
57 #define KVM_TRC_PPC_INSTR        (KVM_TRC_HANDLER + 0x19)
58 
59 struct kvm_user_trace_setup {
60 	__u32 buf_size;
61 	__u32 buf_nr;
62 };
63 
64 #define __KVM_DEPRECATED_MAIN_W_0x06 \
65 	_IOW(KVMIO, 0x06, struct kvm_user_trace_setup)
66 #define __KVM_DEPRECATED_MAIN_0x07 _IO(KVMIO, 0x07)
67 #define __KVM_DEPRECATED_MAIN_0x08 _IO(KVMIO, 0x08)
68 
69 #define __KVM_DEPRECATED_VM_R_0x70 _IOR(KVMIO, 0x70, struct kvm_assigned_irq)
70 
71 struct kvm_breakpoint {
72 	__u32 enabled;
73 	__u32 padding;
74 	__u64 address;
75 };
76 
77 struct kvm_debug_guest {
78 	__u32 enabled;
79 	__u32 pad;
80 	struct kvm_breakpoint breakpoints[4];
81 	__u32 singlestep;
82 };
83 
84 #define __KVM_DEPRECATED_VCPU_W_0x87 _IOW(KVMIO, 0x87, struct kvm_debug_guest)
85 
86 /* *** End of deprecated interfaces *** */
87 
88 
89 /* for KVM_CREATE_MEMORY_REGION */
90 struct kvm_memory_region {
91 	__u32 slot;
92 	__u32 flags;
93 	__u64 guest_phys_addr;
94 	__u64 memory_size; /* bytes */
95 };
96 
97 /* for KVM_SET_USER_MEMORY_REGION */
98 struct kvm_userspace_memory_region {
99 	__u32 slot;
100 	__u32 flags;
101 	__u64 guest_phys_addr;
102 	__u64 memory_size; /* bytes */
103 	__u64 userspace_addr; /* start of the userspace allocated memory */
104 };
105 
106 /*
107  * The bit 0 ~ bit 15 of kvm_memory_region::flags are visible for userspace,
108  * other bits are reserved for kvm internal use which are defined in
109  * include/linux/kvm_host.h.
110  */
111 #define KVM_MEM_LOG_DIRTY_PAGES	(1UL << 0)
112 #define KVM_MEM_READONLY	(1UL << 1)
113 
114 /* for KVM_IRQ_LINE */
115 struct kvm_irq_level {
116 	/*
117 	 * ACPI gsi notion of irq.
118 	 * For IA-64 (APIC model) IOAPIC0: irq 0-23; IOAPIC1: irq 24-47..
119 	 * For X86 (standard AT mode) PIC0/1: irq 0-15. IOAPIC0: 0-23..
120 	 * For ARM: See Documentation/virt/kvm/api.rst
121 	 */
122 	union {
123 		__u32 irq;
124 		__s32 status;
125 	};
126 	__u32 level;
127 };
128 
129 
130 struct kvm_irqchip {
131 	__u32 chip_id;
132 	__u32 pad;
133         union {
134 		char dummy[512];  /* reserving space */
135 #ifdef __KVM_HAVE_PIT
136 		struct kvm_pic_state pic;
137 #endif
138 #ifdef __KVM_HAVE_IOAPIC
139 		struct kvm_ioapic_state ioapic;
140 #endif
141 	} chip;
142 };
143 
144 /* for KVM_CREATE_PIT2 */
145 struct kvm_pit_config {
146 	__u32 flags;
147 	__u32 pad[15];
148 };
149 
150 #define KVM_PIT_SPEAKER_DUMMY     1
151 
152 struct kvm_s390_skeys {
153 	__u64 start_gfn;
154 	__u64 count;
155 	__u64 skeydata_addr;
156 	__u32 flags;
157 	__u32 reserved[9];
158 };
159 
160 #define KVM_S390_CMMA_PEEK (1 << 0)
161 
162 /**
163  * kvm_s390_cmma_log - Used for CMMA migration.
164  *
165  * Used both for input and output.
166  *
167  * @start_gfn: Guest page number to start from.
168  * @count: Size of the result buffer.
169  * @flags: Control operation mode via KVM_S390_CMMA_* flags
170  * @remaining: Used with KVM_S390_GET_CMMA_BITS. Indicates how many dirty
171  *             pages are still remaining.
172  * @mask: Used with KVM_S390_SET_CMMA_BITS. Bitmap of bits to actually set
173  *        in the PGSTE.
174  * @values: Pointer to the values buffer.
175  *
176  * Used in KVM_S390_{G,S}ET_CMMA_BITS ioctls.
177  */
178 struct kvm_s390_cmma_log {
179 	__u64 start_gfn;
180 	__u32 count;
181 	__u32 flags;
182 	union {
183 		__u64 remaining;
184 		__u64 mask;
185 	};
186 	__u64 values;
187 };
188 
189 struct kvm_hyperv_exit {
190 #define KVM_EXIT_HYPERV_SYNIC          1
191 #define KVM_EXIT_HYPERV_HCALL          2
192 #define KVM_EXIT_HYPERV_SYNDBG         3
193 	__u32 type;
194 	__u32 pad1;
195 	union {
196 		struct {
197 			__u32 msr;
198 			__u32 pad2;
199 			__u64 control;
200 			__u64 evt_page;
201 			__u64 msg_page;
202 		} synic;
203 		struct {
204 			__u64 input;
205 			__u64 result;
206 			__u64 params[2];
207 		} hcall;
208 		struct {
209 			__u32 msr;
210 			__u32 pad2;
211 			__u64 control;
212 			__u64 status;
213 			__u64 send_page;
214 			__u64 recv_page;
215 			__u64 pending_page;
216 		} syndbg;
217 	} u;
218 };
219 
220 struct kvm_xen_exit {
221 #define KVM_EXIT_XEN_HCALL          1
222 	__u32 type;
223 	union {
224 		struct {
225 			__u32 longmode;
226 			__u32 cpl;
227 			__u64 input;
228 			__u64 result;
229 			__u64 params[6];
230 		} hcall;
231 	} u;
232 };
233 
234 #define KVM_S390_GET_SKEYS_NONE   1
235 #define KVM_S390_SKEYS_MAX        1048576
236 
237 #define KVM_EXIT_UNKNOWN          0
238 #define KVM_EXIT_EXCEPTION        1
239 #define KVM_EXIT_IO               2
240 #define KVM_EXIT_HYPERCALL        3
241 #define KVM_EXIT_DEBUG            4
242 #define KVM_EXIT_HLT              5
243 #define KVM_EXIT_MMIO             6
244 #define KVM_EXIT_IRQ_WINDOW_OPEN  7
245 #define KVM_EXIT_SHUTDOWN         8
246 #define KVM_EXIT_FAIL_ENTRY       9
247 #define KVM_EXIT_INTR             10
248 #define KVM_EXIT_SET_TPR          11
249 #define KVM_EXIT_TPR_ACCESS       12
250 #define KVM_EXIT_S390_SIEIC       13
251 #define KVM_EXIT_S390_RESET       14
252 #define KVM_EXIT_DCR              15 /* deprecated */
253 #define KVM_EXIT_NMI              16
254 #define KVM_EXIT_INTERNAL_ERROR   17
255 #define KVM_EXIT_OSI              18
256 #define KVM_EXIT_PAPR_HCALL	  19
257 #define KVM_EXIT_S390_UCONTROL	  20
258 #define KVM_EXIT_WATCHDOG         21
259 #define KVM_EXIT_S390_TSCH        22
260 #define KVM_EXIT_EPR              23
261 #define KVM_EXIT_SYSTEM_EVENT     24
262 #define KVM_EXIT_S390_STSI        25
263 #define KVM_EXIT_IOAPIC_EOI       26
264 #define KVM_EXIT_HYPERV           27
265 #define KVM_EXIT_ARM_NISV         28
266 #define KVM_EXIT_X86_RDMSR        29
267 #define KVM_EXIT_X86_WRMSR        30
268 #define KVM_EXIT_DIRTY_RING_FULL  31
269 #define KVM_EXIT_AP_RESET_HOLD    32
270 #define KVM_EXIT_X86_BUS_LOCK     33
271 #define KVM_EXIT_XEN              34
272 #define KVM_EXIT_RISCV_SBI        35
273 
274 /* For KVM_EXIT_INTERNAL_ERROR */
275 /* Emulate instruction failed. */
276 #define KVM_INTERNAL_ERROR_EMULATION	1
277 /* Encounter unexpected simultaneous exceptions. */
278 #define KVM_INTERNAL_ERROR_SIMUL_EX	2
279 /* Encounter unexpected vm-exit due to delivery event. */
280 #define KVM_INTERNAL_ERROR_DELIVERY_EV	3
281 /* Encounter unexpected vm-exit reason */
282 #define KVM_INTERNAL_ERROR_UNEXPECTED_EXIT_REASON	4
283 
284 /* Flags that describe what fields in emulation_failure hold valid data. */
285 #define KVM_INTERNAL_ERROR_EMULATION_FLAG_INSTRUCTION_BYTES (1ULL << 0)
286 
287 /* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */
288 struct kvm_run {
289 	/* in */
290 	__u8 request_interrupt_window;
291 	__u8 immediate_exit;
292 	__u8 padding1[6];
293 
294 	/* out */
295 	__u32 exit_reason;
296 	__u8 ready_for_interrupt_injection;
297 	__u8 if_flag;
298 	__u16 flags;
299 
300 	/* in (pre_kvm_run), out (post_kvm_run) */
301 	__u64 cr8;
302 	__u64 apic_base;
303 
304 #ifdef __KVM_S390
305 	/* the processor status word for s390 */
306 	__u64 psw_mask; /* psw upper half */
307 	__u64 psw_addr; /* psw lower half */
308 #endif
309 	union {
310 		/* KVM_EXIT_UNKNOWN */
311 		struct {
312 			__u64 hardware_exit_reason;
313 		} hw;
314 		/* KVM_EXIT_FAIL_ENTRY */
315 		struct {
316 			__u64 hardware_entry_failure_reason;
317 			__u32 cpu;
318 		} fail_entry;
319 		/* KVM_EXIT_EXCEPTION */
320 		struct {
321 			__u32 exception;
322 			__u32 error_code;
323 		} ex;
324 		/* KVM_EXIT_IO */
325 		struct {
326 #define KVM_EXIT_IO_IN  0
327 #define KVM_EXIT_IO_OUT 1
328 			__u8 direction;
329 			__u8 size; /* bytes */
330 			__u16 port;
331 			__u32 count;
332 			__u64 data_offset; /* relative to kvm_run start */
333 		} io;
334 		/* KVM_EXIT_DEBUG */
335 		struct {
336 			struct kvm_debug_exit_arch arch;
337 		} debug;
338 		/* KVM_EXIT_MMIO */
339 		struct {
340 			__u64 phys_addr;
341 			__u8  data[8];
342 			__u32 len;
343 			__u8  is_write;
344 		} mmio;
345 		/* KVM_EXIT_HYPERCALL */
346 		struct {
347 			__u64 nr;
348 			__u64 args[6];
349 			__u64 ret;
350 			__u32 longmode;
351 			__u32 pad;
352 		} hypercall;
353 		/* KVM_EXIT_TPR_ACCESS */
354 		struct {
355 			__u64 rip;
356 			__u32 is_write;
357 			__u32 pad;
358 		} tpr_access;
359 		/* KVM_EXIT_S390_SIEIC */
360 		struct {
361 			__u8 icptcode;
362 			__u16 ipa;
363 			__u32 ipb;
364 		} s390_sieic;
365 		/* KVM_EXIT_S390_RESET */
366 #define KVM_S390_RESET_POR       1
367 #define KVM_S390_RESET_CLEAR     2
368 #define KVM_S390_RESET_SUBSYSTEM 4
369 #define KVM_S390_RESET_CPU_INIT  8
370 #define KVM_S390_RESET_IPL       16
371 		__u64 s390_reset_flags;
372 		/* KVM_EXIT_S390_UCONTROL */
373 		struct {
374 			__u64 trans_exc_code;
375 			__u32 pgm_code;
376 		} s390_ucontrol;
377 		/* KVM_EXIT_DCR (deprecated) */
378 		struct {
379 			__u32 dcrn;
380 			__u32 data;
381 			__u8  is_write;
382 		} dcr;
383 		/* KVM_EXIT_INTERNAL_ERROR */
384 		struct {
385 			__u32 suberror;
386 			/* Available with KVM_CAP_INTERNAL_ERROR_DATA: */
387 			__u32 ndata;
388 			__u64 data[16];
389 		} internal;
390 		/*
391 		 * KVM_INTERNAL_ERROR_EMULATION
392 		 *
393 		 * "struct emulation_failure" is an overlay of "struct internal"
394 		 * that is used for the KVM_INTERNAL_ERROR_EMULATION sub-type of
395 		 * KVM_EXIT_INTERNAL_ERROR.  Note, unlike other internal error
396 		 * sub-types, this struct is ABI!  It also needs to be backwards
397 		 * compatible with "struct internal".  Take special care that
398 		 * "ndata" is correct, that new fields are enumerated in "flags",
399 		 * and that each flag enumerates fields that are 64-bit aligned
400 		 * and sized (so that ndata+internal.data[] is valid/accurate).
401 		 *
402 		 * Space beyond the defined fields may be used to store arbitrary
403 		 * debug information relating to the emulation failure. It is
404 		 * accounted for in "ndata" but the format is unspecified and is
405 		 * not represented in "flags". Any such information is *not* ABI!
406 		 */
407 		struct {
408 			__u32 suberror;
409 			__u32 ndata;
410 			__u64 flags;
411 			union {
412 				struct {
413 					__u8  insn_size;
414 					__u8  insn_bytes[15];
415 				};
416 			};
417 			/* Arbitrary debug data may follow. */
418 		} emulation_failure;
419 		/* KVM_EXIT_OSI */
420 		struct {
421 			__u64 gprs[32];
422 		} osi;
423 		/* KVM_EXIT_PAPR_HCALL */
424 		struct {
425 			__u64 nr;
426 			__u64 ret;
427 			__u64 args[9];
428 		} papr_hcall;
429 		/* KVM_EXIT_S390_TSCH */
430 		struct {
431 			__u16 subchannel_id;
432 			__u16 subchannel_nr;
433 			__u32 io_int_parm;
434 			__u32 io_int_word;
435 			__u32 ipb;
436 			__u8 dequeued;
437 		} s390_tsch;
438 		/* KVM_EXIT_EPR */
439 		struct {
440 			__u32 epr;
441 		} epr;
442 		/* KVM_EXIT_SYSTEM_EVENT */
443 		struct {
444 #define KVM_SYSTEM_EVENT_SHUTDOWN       1
445 #define KVM_SYSTEM_EVENT_RESET          2
446 #define KVM_SYSTEM_EVENT_CRASH          3
447 			__u32 type;
448 			__u64 flags;
449 		} system_event;
450 		/* KVM_EXIT_S390_STSI */
451 		struct {
452 			__u64 addr;
453 			__u8 ar;
454 			__u8 reserved;
455 			__u8 fc;
456 			__u8 sel1;
457 			__u16 sel2;
458 		} s390_stsi;
459 		/* KVM_EXIT_IOAPIC_EOI */
460 		struct {
461 			__u8 vector;
462 		} eoi;
463 		/* KVM_EXIT_HYPERV */
464 		struct kvm_hyperv_exit hyperv;
465 		/* KVM_EXIT_ARM_NISV */
466 		struct {
467 			__u64 esr_iss;
468 			__u64 fault_ipa;
469 		} arm_nisv;
470 		/* KVM_EXIT_X86_RDMSR / KVM_EXIT_X86_WRMSR */
471 		struct {
472 			__u8 error; /* user -> kernel */
473 			__u8 pad[7];
474 #define KVM_MSR_EXIT_REASON_INVAL	(1 << 0)
475 #define KVM_MSR_EXIT_REASON_UNKNOWN	(1 << 1)
476 #define KVM_MSR_EXIT_REASON_FILTER	(1 << 2)
477 			__u32 reason; /* kernel -> user */
478 			__u32 index; /* kernel -> user */
479 			__u64 data; /* kernel <-> user */
480 		} msr;
481 		/* KVM_EXIT_XEN */
482 		struct kvm_xen_exit xen;
483 		/* KVM_EXIT_RISCV_SBI */
484 		struct {
485 			unsigned long extension_id;
486 			unsigned long function_id;
487 			unsigned long args[6];
488 			unsigned long ret[2];
489 		} riscv_sbi;
490 		/* Fix the size of the union. */
491 		char padding[256];
492 	};
493 
494 	/* 2048 is the size of the char array used to bound/pad the size
495 	 * of the union that holds sync regs.
496 	 */
497 	#define SYNC_REGS_SIZE_BYTES 2048
498 	/*
499 	 * shared registers between kvm and userspace.
500 	 * kvm_valid_regs specifies the register classes set by the host
501 	 * kvm_dirty_regs specified the register classes dirtied by userspace
502 	 * struct kvm_sync_regs is architecture specific, as well as the
503 	 * bits for kvm_valid_regs and kvm_dirty_regs
504 	 */
505 	__u64 kvm_valid_regs;
506 	__u64 kvm_dirty_regs;
507 	union {
508 		struct kvm_sync_regs regs;
509 		char padding[SYNC_REGS_SIZE_BYTES];
510 	} s;
511 };
512 
513 /* for KVM_REGISTER_COALESCED_MMIO / KVM_UNREGISTER_COALESCED_MMIO */
514 
515 struct kvm_coalesced_mmio_zone {
516 	__u64 addr;
517 	__u32 size;
518 	union {
519 		__u32 pad;
520 		__u32 pio;
521 	};
522 };
523 
524 struct kvm_coalesced_mmio {
525 	__u64 phys_addr;
526 	__u32 len;
527 	union {
528 		__u32 pad;
529 		__u32 pio;
530 	};
531 	__u8  data[8];
532 };
533 
534 struct kvm_coalesced_mmio_ring {
535 	__u32 first, last;
536 	struct kvm_coalesced_mmio coalesced_mmio[0];
537 };
538 
539 #define KVM_COALESCED_MMIO_MAX \
540 	((PAGE_SIZE - sizeof(struct kvm_coalesced_mmio_ring)) / \
541 	 sizeof(struct kvm_coalesced_mmio))
542 
543 /* for KVM_TRANSLATE */
544 struct kvm_translation {
545 	/* in */
546 	__u64 linear_address;
547 
548 	/* out */
549 	__u64 physical_address;
550 	__u8  valid;
551 	__u8  writeable;
552 	__u8  usermode;
553 	__u8  pad[5];
554 };
555 
556 /* for KVM_S390_MEM_OP */
557 struct kvm_s390_mem_op {
558 	/* in */
559 	__u64 gaddr;		/* the guest address */
560 	__u64 flags;		/* flags */
561 	__u32 size;		/* amount of bytes */
562 	__u32 op;		/* type of operation */
563 	__u64 buf;		/* buffer in userspace */
564 	union {
565 		__u8 ar;	/* the access register number */
566 		__u32 sida_offset; /* offset into the sida */
567 		__u8 reserved[32]; /* should be set to 0 */
568 	};
569 };
570 /* types for kvm_s390_mem_op->op */
571 #define KVM_S390_MEMOP_LOGICAL_READ	0
572 #define KVM_S390_MEMOP_LOGICAL_WRITE	1
573 #define KVM_S390_MEMOP_SIDA_READ	2
574 #define KVM_S390_MEMOP_SIDA_WRITE	3
575 /* flags for kvm_s390_mem_op->flags */
576 #define KVM_S390_MEMOP_F_CHECK_ONLY		(1ULL << 0)
577 #define KVM_S390_MEMOP_F_INJECT_EXCEPTION	(1ULL << 1)
578 
579 /* for KVM_INTERRUPT */
580 struct kvm_interrupt {
581 	/* in */
582 	__u32 irq;
583 };
584 
585 /* for KVM_GET_DIRTY_LOG */
586 struct kvm_dirty_log {
587 	__u32 slot;
588 	__u32 padding1;
589 	union {
590 		void *dirty_bitmap; /* one bit per page */
591 		__u64 padding2;
592 	};
593 };
594 
595 /* for KVM_CLEAR_DIRTY_LOG */
596 struct kvm_clear_dirty_log {
597 	__u32 slot;
598 	__u32 num_pages;
599 	__u64 first_page;
600 	union {
601 		void *dirty_bitmap; /* one bit per page */
602 		__u64 padding2;
603 	};
604 };
605 
606 /* for KVM_SET_SIGNAL_MASK */
607 struct kvm_signal_mask {
608 	__u32 len;
609 	__u8  sigset[0];
610 };
611 
612 /* for KVM_TPR_ACCESS_REPORTING */
613 struct kvm_tpr_access_ctl {
614 	__u32 enabled;
615 	__u32 flags;
616 	__u32 reserved[8];
617 };
618 
619 /* for KVM_SET_VAPIC_ADDR */
620 struct kvm_vapic_addr {
621 	__u64 vapic_addr;
622 };
623 
624 /* for KVM_SET_MP_STATE */
625 
626 /* not all states are valid on all architectures */
627 #define KVM_MP_STATE_RUNNABLE          0
628 #define KVM_MP_STATE_UNINITIALIZED     1
629 #define KVM_MP_STATE_INIT_RECEIVED     2
630 #define KVM_MP_STATE_HALTED            3
631 #define KVM_MP_STATE_SIPI_RECEIVED     4
632 #define KVM_MP_STATE_STOPPED           5
633 #define KVM_MP_STATE_CHECK_STOP        6
634 #define KVM_MP_STATE_OPERATING         7
635 #define KVM_MP_STATE_LOAD              8
636 #define KVM_MP_STATE_AP_RESET_HOLD     9
637 
638 struct kvm_mp_state {
639 	__u32 mp_state;
640 };
641 
642 struct kvm_s390_psw {
643 	__u64 mask;
644 	__u64 addr;
645 };
646 
647 /* valid values for type in kvm_s390_interrupt */
648 #define KVM_S390_SIGP_STOP		0xfffe0000u
649 #define KVM_S390_PROGRAM_INT		0xfffe0001u
650 #define KVM_S390_SIGP_SET_PREFIX	0xfffe0002u
651 #define KVM_S390_RESTART		0xfffe0003u
652 #define KVM_S390_INT_PFAULT_INIT	0xfffe0004u
653 #define KVM_S390_INT_PFAULT_DONE	0xfffe0005u
654 #define KVM_S390_MCHK			0xfffe1000u
655 #define KVM_S390_INT_CLOCK_COMP		0xffff1004u
656 #define KVM_S390_INT_CPU_TIMER		0xffff1005u
657 #define KVM_S390_INT_VIRTIO		0xffff2603u
658 #define KVM_S390_INT_SERVICE		0xffff2401u
659 #define KVM_S390_INT_EMERGENCY		0xffff1201u
660 #define KVM_S390_INT_EXTERNAL_CALL	0xffff1202u
661 /* Anything below 0xfffe0000u is taken by INT_IO */
662 #define KVM_S390_INT_IO(ai,cssid,ssid,schid)   \
663 	(((schid)) |			       \
664 	 ((ssid) << 16) |		       \
665 	 ((cssid) << 18) |		       \
666 	 ((ai) << 26))
667 #define KVM_S390_INT_IO_MIN		0x00000000u
668 #define KVM_S390_INT_IO_MAX		0xfffdffffu
669 #define KVM_S390_INT_IO_AI_MASK		0x04000000u
670 
671 
672 struct kvm_s390_interrupt {
673 	__u32 type;
674 	__u32 parm;
675 	__u64 parm64;
676 };
677 
678 struct kvm_s390_io_info {
679 	__u16 subchannel_id;
680 	__u16 subchannel_nr;
681 	__u32 io_int_parm;
682 	__u32 io_int_word;
683 };
684 
685 struct kvm_s390_ext_info {
686 	__u32 ext_params;
687 	__u32 pad;
688 	__u64 ext_params2;
689 };
690 
691 struct kvm_s390_pgm_info {
692 	__u64 trans_exc_code;
693 	__u64 mon_code;
694 	__u64 per_address;
695 	__u32 data_exc_code;
696 	__u16 code;
697 	__u16 mon_class_nr;
698 	__u8 per_code;
699 	__u8 per_atmid;
700 	__u8 exc_access_id;
701 	__u8 per_access_id;
702 	__u8 op_access_id;
703 #define KVM_S390_PGM_FLAGS_ILC_VALID	0x01
704 #define KVM_S390_PGM_FLAGS_ILC_0	0x02
705 #define KVM_S390_PGM_FLAGS_ILC_1	0x04
706 #define KVM_S390_PGM_FLAGS_ILC_MASK	0x06
707 #define KVM_S390_PGM_FLAGS_NO_REWIND	0x08
708 	__u8 flags;
709 	__u8 pad[2];
710 };
711 
712 struct kvm_s390_prefix_info {
713 	__u32 address;
714 };
715 
716 struct kvm_s390_extcall_info {
717 	__u16 code;
718 };
719 
720 struct kvm_s390_emerg_info {
721 	__u16 code;
722 };
723 
724 #define KVM_S390_STOP_FLAG_STORE_STATUS	0x01
725 struct kvm_s390_stop_info {
726 	__u32 flags;
727 };
728 
729 struct kvm_s390_mchk_info {
730 	__u64 cr14;
731 	__u64 mcic;
732 	__u64 failing_storage_address;
733 	__u32 ext_damage_code;
734 	__u32 pad;
735 	__u8 fixed_logout[16];
736 };
737 
738 struct kvm_s390_irq {
739 	__u64 type;
740 	union {
741 		struct kvm_s390_io_info io;
742 		struct kvm_s390_ext_info ext;
743 		struct kvm_s390_pgm_info pgm;
744 		struct kvm_s390_emerg_info emerg;
745 		struct kvm_s390_extcall_info extcall;
746 		struct kvm_s390_prefix_info prefix;
747 		struct kvm_s390_stop_info stop;
748 		struct kvm_s390_mchk_info mchk;
749 		char reserved[64];
750 	} u;
751 };
752 
753 struct kvm_s390_irq_state {
754 	__u64 buf;
755 	__u32 flags;        /* will stay unused for compatibility reasons */
756 	__u32 len;
757 	__u32 reserved[4];  /* will stay unused for compatibility reasons */
758 };
759 
760 /* for KVM_SET_GUEST_DEBUG */
761 
762 #define KVM_GUESTDBG_ENABLE		0x00000001
763 #define KVM_GUESTDBG_SINGLESTEP		0x00000002
764 
765 struct kvm_guest_debug {
766 	__u32 control;
767 	__u32 pad;
768 	struct kvm_guest_debug_arch arch;
769 };
770 
771 enum {
772 	kvm_ioeventfd_flag_nr_datamatch,
773 	kvm_ioeventfd_flag_nr_pio,
774 	kvm_ioeventfd_flag_nr_deassign,
775 	kvm_ioeventfd_flag_nr_virtio_ccw_notify,
776 	kvm_ioeventfd_flag_nr_fast_mmio,
777 	kvm_ioeventfd_flag_nr_max,
778 };
779 
780 #define KVM_IOEVENTFD_FLAG_DATAMATCH (1 << kvm_ioeventfd_flag_nr_datamatch)
781 #define KVM_IOEVENTFD_FLAG_PIO       (1 << kvm_ioeventfd_flag_nr_pio)
782 #define KVM_IOEVENTFD_FLAG_DEASSIGN  (1 << kvm_ioeventfd_flag_nr_deassign)
783 #define KVM_IOEVENTFD_FLAG_VIRTIO_CCW_NOTIFY \
784 	(1 << kvm_ioeventfd_flag_nr_virtio_ccw_notify)
785 
786 #define KVM_IOEVENTFD_VALID_FLAG_MASK  ((1 << kvm_ioeventfd_flag_nr_max) - 1)
787 
788 struct kvm_ioeventfd {
789 	__u64 datamatch;
790 	__u64 addr;        /* legal pio/mmio address */
791 	__u32 len;         /* 1, 2, 4, or 8 bytes; or 0 to ignore length */
792 	__s32 fd;
793 	__u32 flags;
794 	__u8  pad[36];
795 };
796 
797 #define KVM_X86_DISABLE_EXITS_MWAIT          (1 << 0)
798 #define KVM_X86_DISABLE_EXITS_HLT            (1 << 1)
799 #define KVM_X86_DISABLE_EXITS_PAUSE          (1 << 2)
800 #define KVM_X86_DISABLE_EXITS_CSTATE         (1 << 3)
801 #define KVM_X86_DISABLE_VALID_EXITS          (KVM_X86_DISABLE_EXITS_MWAIT | \
802                                               KVM_X86_DISABLE_EXITS_HLT | \
803                                               KVM_X86_DISABLE_EXITS_PAUSE | \
804                                               KVM_X86_DISABLE_EXITS_CSTATE)
805 
806 /* for KVM_ENABLE_CAP */
807 struct kvm_enable_cap {
808 	/* in */
809 	__u32 cap;
810 	__u32 flags;
811 	__u64 args[4];
812 	__u8  pad[64];
813 };
814 
815 /* for KVM_PPC_GET_PVINFO */
816 
817 #define KVM_PPC_PVINFO_FLAGS_EV_IDLE   (1<<0)
818 
819 struct kvm_ppc_pvinfo {
820 	/* out */
821 	__u32 flags;
822 	__u32 hcall[4];
823 	__u8  pad[108];
824 };
825 
826 /* for KVM_PPC_GET_SMMU_INFO */
827 #define KVM_PPC_PAGE_SIZES_MAX_SZ	8
828 
829 struct kvm_ppc_one_page_size {
830 	__u32 page_shift;	/* Page shift (or 0) */
831 	__u32 pte_enc;		/* Encoding in the HPTE (>>12) */
832 };
833 
834 struct kvm_ppc_one_seg_page_size {
835 	__u32 page_shift;	/* Base page shift of segment (or 0) */
836 	__u32 slb_enc;		/* SLB encoding for BookS */
837 	struct kvm_ppc_one_page_size enc[KVM_PPC_PAGE_SIZES_MAX_SZ];
838 };
839 
840 #define KVM_PPC_PAGE_SIZES_REAL		0x00000001
841 #define KVM_PPC_1T_SEGMENTS		0x00000002
842 #define KVM_PPC_NO_HASH			0x00000004
843 
844 struct kvm_ppc_smmu_info {
845 	__u64 flags;
846 	__u32 slb_size;
847 	__u16 data_keys;	/* # storage keys supported for data */
848 	__u16 instr_keys;	/* # storage keys supported for instructions */
849 	struct kvm_ppc_one_seg_page_size sps[KVM_PPC_PAGE_SIZES_MAX_SZ];
850 };
851 
852 /* for KVM_PPC_RESIZE_HPT_{PREPARE,COMMIT} */
853 struct kvm_ppc_resize_hpt {
854 	__u64 flags;
855 	__u32 shift;
856 	__u32 pad;
857 };
858 
859 #define KVMIO 0xAE
860 
861 /* machine type bits, to be used as argument to KVM_CREATE_VM */
862 #define KVM_VM_S390_UCONTROL	1
863 
864 /* on ppc, 0 indicate default, 1 should force HV and 2 PR */
865 #define KVM_VM_PPC_HV 1
866 #define KVM_VM_PPC_PR 2
867 
868 /* on MIPS, 0 indicates auto, 1 forces VZ ASE, 2 forces trap & emulate */
869 #define KVM_VM_MIPS_AUTO	0
870 #define KVM_VM_MIPS_VZ		1
871 #define KVM_VM_MIPS_TE		2
872 
873 #define KVM_S390_SIE_PAGE_OFFSET 1
874 
875 /*
876  * On arm64, machine type can be used to request the physical
877  * address size for the VM. Bits[7-0] are reserved for the guest
878  * PA size shift (i.e, log2(PA_Size)). For backward compatibility,
879  * value 0 implies the default IPA size, 40bits.
880  */
881 #define KVM_VM_TYPE_ARM_IPA_SIZE_MASK	0xffULL
882 #define KVM_VM_TYPE_ARM_IPA_SIZE(x)		\
883 	((x) & KVM_VM_TYPE_ARM_IPA_SIZE_MASK)
884 /*
885  * ioctls for /dev/kvm fds:
886  */
887 #define KVM_GET_API_VERSION       _IO(KVMIO,   0x00)
888 #define KVM_CREATE_VM             _IO(KVMIO,   0x01) /* returns a VM fd */
889 #define KVM_GET_MSR_INDEX_LIST    _IOWR(KVMIO, 0x02, struct kvm_msr_list)
890 
891 #define KVM_S390_ENABLE_SIE       _IO(KVMIO,   0x06)
892 /*
893  * Check if a kvm extension is available.  Argument is extension number,
894  * return is 1 (yes) or 0 (no, sorry).
895  */
896 #define KVM_CHECK_EXTENSION       _IO(KVMIO,   0x03)
897 /*
898  * Get size for mmap(vcpu_fd)
899  */
900 #define KVM_GET_VCPU_MMAP_SIZE    _IO(KVMIO,   0x04) /* in bytes */
901 #define KVM_GET_SUPPORTED_CPUID   _IOWR(KVMIO, 0x05, struct kvm_cpuid2)
902 #define KVM_TRACE_ENABLE          __KVM_DEPRECATED_MAIN_W_0x06
903 #define KVM_TRACE_PAUSE           __KVM_DEPRECATED_MAIN_0x07
904 #define KVM_TRACE_DISABLE         __KVM_DEPRECATED_MAIN_0x08
905 #define KVM_GET_EMULATED_CPUID	  _IOWR(KVMIO, 0x09, struct kvm_cpuid2)
906 #define KVM_GET_MSR_FEATURE_INDEX_LIST    _IOWR(KVMIO, 0x0a, struct kvm_msr_list)
907 
908 /*
909  * Extension capability list.
910  */
911 #define KVM_CAP_IRQCHIP	  0
912 #define KVM_CAP_HLT	  1
913 #define KVM_CAP_MMU_SHADOW_CACHE_CONTROL 2
914 #define KVM_CAP_USER_MEMORY 3
915 #define KVM_CAP_SET_TSS_ADDR 4
916 #define KVM_CAP_VAPIC 6
917 #define KVM_CAP_EXT_CPUID 7
918 #define KVM_CAP_CLOCKSOURCE 8
919 #define KVM_CAP_NR_VCPUS 9       /* returns recommended max vcpus per vm */
920 #define KVM_CAP_NR_MEMSLOTS 10   /* returns max memory slots per vm */
921 #define KVM_CAP_PIT 11
922 #define KVM_CAP_NOP_IO_DELAY 12
923 #define KVM_CAP_PV_MMU 13
924 #define KVM_CAP_MP_STATE 14
925 #define KVM_CAP_COALESCED_MMIO 15
926 #define KVM_CAP_SYNC_MMU 16  /* Changes to host mmap are reflected in guest */
927 #define KVM_CAP_IOMMU 18
928 /* Bug in KVM_SET_USER_MEMORY_REGION fixed: */
929 #define KVM_CAP_DESTROY_MEMORY_REGION_WORKS 21
930 #define KVM_CAP_USER_NMI 22
931 #ifdef __KVM_HAVE_GUEST_DEBUG
932 #define KVM_CAP_SET_GUEST_DEBUG 23
933 #endif
934 #ifdef __KVM_HAVE_PIT
935 #define KVM_CAP_REINJECT_CONTROL 24
936 #endif
937 #define KVM_CAP_IRQ_ROUTING 25
938 #define KVM_CAP_IRQ_INJECT_STATUS 26
939 #define KVM_CAP_ASSIGN_DEV_IRQ 29
940 /* Another bug in KVM_SET_USER_MEMORY_REGION fixed: */
941 #define KVM_CAP_JOIN_MEMORY_REGIONS_WORKS 30
942 #ifdef __KVM_HAVE_MCE
943 #define KVM_CAP_MCE 31
944 #endif
945 #define KVM_CAP_IRQFD 32
946 #ifdef __KVM_HAVE_PIT
947 #define KVM_CAP_PIT2 33
948 #endif
949 #define KVM_CAP_SET_BOOT_CPU_ID 34
950 #ifdef __KVM_HAVE_PIT_STATE2
951 #define KVM_CAP_PIT_STATE2 35
952 #endif
953 #define KVM_CAP_IOEVENTFD 36
954 #define KVM_CAP_SET_IDENTITY_MAP_ADDR 37
955 #ifdef __KVM_HAVE_XEN_HVM
956 #define KVM_CAP_XEN_HVM 38
957 #endif
958 #define KVM_CAP_ADJUST_CLOCK 39
959 #define KVM_CAP_INTERNAL_ERROR_DATA 40
960 #ifdef __KVM_HAVE_VCPU_EVENTS
961 #define KVM_CAP_VCPU_EVENTS 41
962 #endif
963 #define KVM_CAP_S390_PSW 42
964 #define KVM_CAP_PPC_SEGSTATE 43
965 #define KVM_CAP_HYPERV 44
966 #define KVM_CAP_HYPERV_VAPIC 45
967 #define KVM_CAP_HYPERV_SPIN 46
968 #define KVM_CAP_PCI_SEGMENT 47
969 #define KVM_CAP_PPC_PAIRED_SINGLES 48
970 #define KVM_CAP_INTR_SHADOW 49
971 #ifdef __KVM_HAVE_DEBUGREGS
972 #define KVM_CAP_DEBUGREGS 50
973 #endif
974 #define KVM_CAP_X86_ROBUST_SINGLESTEP 51
975 #define KVM_CAP_PPC_OSI 52
976 #define KVM_CAP_PPC_UNSET_IRQ 53
977 #define KVM_CAP_ENABLE_CAP 54
978 #ifdef __KVM_HAVE_XSAVE
979 #define KVM_CAP_XSAVE 55
980 #endif
981 #ifdef __KVM_HAVE_XCRS
982 #define KVM_CAP_XCRS 56
983 #endif
984 #define KVM_CAP_PPC_GET_PVINFO 57
985 #define KVM_CAP_PPC_IRQ_LEVEL 58
986 #define KVM_CAP_ASYNC_PF 59
987 #define KVM_CAP_TSC_CONTROL 60
988 #define KVM_CAP_GET_TSC_KHZ 61
989 #define KVM_CAP_PPC_BOOKE_SREGS 62
990 #define KVM_CAP_SPAPR_TCE 63
991 #define KVM_CAP_PPC_SMT 64
992 #define KVM_CAP_PPC_RMA	65
993 #define KVM_CAP_MAX_VCPUS 66       /* returns max vcpus per vm */
994 #define KVM_CAP_PPC_HIOR 67
995 #define KVM_CAP_PPC_PAPR 68
996 #define KVM_CAP_SW_TLB 69
997 #define KVM_CAP_ONE_REG 70
998 #define KVM_CAP_S390_GMAP 71
999 #define KVM_CAP_TSC_DEADLINE_TIMER 72
1000 #define KVM_CAP_S390_UCONTROL 73
1001 #define KVM_CAP_SYNC_REGS 74
1002 #define KVM_CAP_PCI_2_3 75
1003 #define KVM_CAP_KVMCLOCK_CTRL 76
1004 #define KVM_CAP_SIGNAL_MSI 77
1005 #define KVM_CAP_PPC_GET_SMMU_INFO 78
1006 #define KVM_CAP_S390_COW 79
1007 #define KVM_CAP_PPC_ALLOC_HTAB 80
1008 #define KVM_CAP_READONLY_MEM 81
1009 #define KVM_CAP_IRQFD_RESAMPLE 82
1010 #define KVM_CAP_PPC_BOOKE_WATCHDOG 83
1011 #define KVM_CAP_PPC_HTAB_FD 84
1012 #define KVM_CAP_S390_CSS_SUPPORT 85
1013 #define KVM_CAP_PPC_EPR 86
1014 #define KVM_CAP_ARM_PSCI 87
1015 #define KVM_CAP_ARM_SET_DEVICE_ADDR 88
1016 #define KVM_CAP_DEVICE_CTRL 89
1017 #define KVM_CAP_IRQ_MPIC 90
1018 #define KVM_CAP_PPC_RTAS 91
1019 #define KVM_CAP_IRQ_XICS 92
1020 #define KVM_CAP_ARM_EL1_32BIT 93
1021 #define KVM_CAP_SPAPR_MULTITCE 94
1022 #define KVM_CAP_EXT_EMUL_CPUID 95
1023 #define KVM_CAP_HYPERV_TIME 96
1024 #define KVM_CAP_IOAPIC_POLARITY_IGNORED 97
1025 #define KVM_CAP_ENABLE_CAP_VM 98
1026 #define KVM_CAP_S390_IRQCHIP 99
1027 #define KVM_CAP_IOEVENTFD_NO_LENGTH 100
1028 #define KVM_CAP_VM_ATTRIBUTES 101
1029 #define KVM_CAP_ARM_PSCI_0_2 102
1030 #define KVM_CAP_PPC_FIXUP_HCALL 103
1031 #define KVM_CAP_PPC_ENABLE_HCALL 104
1032 #define KVM_CAP_CHECK_EXTENSION_VM 105
1033 #define KVM_CAP_S390_USER_SIGP 106
1034 #define KVM_CAP_S390_VECTOR_REGISTERS 107
1035 #define KVM_CAP_S390_MEM_OP 108
1036 #define KVM_CAP_S390_USER_STSI 109
1037 #define KVM_CAP_S390_SKEYS 110
1038 #define KVM_CAP_MIPS_FPU 111
1039 #define KVM_CAP_MIPS_MSA 112
1040 #define KVM_CAP_S390_INJECT_IRQ 113
1041 #define KVM_CAP_S390_IRQ_STATE 114
1042 #define KVM_CAP_PPC_HWRNG 115
1043 #define KVM_CAP_DISABLE_QUIRKS 116
1044 #define KVM_CAP_X86_SMM 117
1045 #define KVM_CAP_MULTI_ADDRESS_SPACE 118
1046 #define KVM_CAP_GUEST_DEBUG_HW_BPS 119
1047 #define KVM_CAP_GUEST_DEBUG_HW_WPS 120
1048 #define KVM_CAP_SPLIT_IRQCHIP 121
1049 #define KVM_CAP_IOEVENTFD_ANY_LENGTH 122
1050 #define KVM_CAP_HYPERV_SYNIC 123
1051 #define KVM_CAP_S390_RI 124
1052 #define KVM_CAP_SPAPR_TCE_64 125
1053 #define KVM_CAP_ARM_PMU_V3 126
1054 #define KVM_CAP_VCPU_ATTRIBUTES 127
1055 #define KVM_CAP_MAX_VCPU_ID 128
1056 #define KVM_CAP_X2APIC_API 129
1057 #define KVM_CAP_S390_USER_INSTR0 130
1058 #define KVM_CAP_MSI_DEVID 131
1059 #define KVM_CAP_PPC_HTM 132
1060 #define KVM_CAP_SPAPR_RESIZE_HPT 133
1061 #define KVM_CAP_PPC_MMU_RADIX 134
1062 #define KVM_CAP_PPC_MMU_HASH_V3 135
1063 #define KVM_CAP_IMMEDIATE_EXIT 136
1064 #define KVM_CAP_MIPS_VZ 137
1065 #define KVM_CAP_MIPS_TE 138
1066 #define KVM_CAP_MIPS_64BIT 139
1067 #define KVM_CAP_S390_GS 140
1068 #define KVM_CAP_S390_AIS 141
1069 #define KVM_CAP_SPAPR_TCE_VFIO 142
1070 #define KVM_CAP_X86_DISABLE_EXITS 143
1071 #define KVM_CAP_ARM_USER_IRQ 144
1072 #define KVM_CAP_S390_CMMA_MIGRATION 145
1073 #define KVM_CAP_PPC_FWNMI 146
1074 #define KVM_CAP_PPC_SMT_POSSIBLE 147
1075 #define KVM_CAP_HYPERV_SYNIC2 148
1076 #define KVM_CAP_HYPERV_VP_INDEX 149
1077 #define KVM_CAP_S390_AIS_MIGRATION 150
1078 #define KVM_CAP_PPC_GET_CPU_CHAR 151
1079 #define KVM_CAP_S390_BPB 152
1080 #define KVM_CAP_GET_MSR_FEATURES 153
1081 #define KVM_CAP_HYPERV_EVENTFD 154
1082 #define KVM_CAP_HYPERV_TLBFLUSH 155
1083 #define KVM_CAP_S390_HPAGE_1M 156
1084 #define KVM_CAP_NESTED_STATE 157
1085 #define KVM_CAP_ARM_INJECT_SERROR_ESR 158
1086 #define KVM_CAP_MSR_PLATFORM_INFO 159
1087 #define KVM_CAP_PPC_NESTED_HV 160
1088 #define KVM_CAP_HYPERV_SEND_IPI 161
1089 #define KVM_CAP_COALESCED_PIO 162
1090 #define KVM_CAP_HYPERV_ENLIGHTENED_VMCS 163
1091 #define KVM_CAP_EXCEPTION_PAYLOAD 164
1092 #define KVM_CAP_ARM_VM_IPA_SIZE 165
1093 #define KVM_CAP_MANUAL_DIRTY_LOG_PROTECT 166 /* Obsolete */
1094 #define KVM_CAP_HYPERV_CPUID 167
1095 #define KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2 168
1096 #define KVM_CAP_PPC_IRQ_XIVE 169
1097 #define KVM_CAP_ARM_SVE 170
1098 #define KVM_CAP_ARM_PTRAUTH_ADDRESS 171
1099 #define KVM_CAP_ARM_PTRAUTH_GENERIC 172
1100 #define KVM_CAP_PMU_EVENT_FILTER 173
1101 #define KVM_CAP_ARM_IRQ_LINE_LAYOUT_2 174
1102 #define KVM_CAP_HYPERV_DIRECT_TLBFLUSH 175
1103 #define KVM_CAP_PPC_GUEST_DEBUG_SSTEP 176
1104 #define KVM_CAP_ARM_NISV_TO_USER 177
1105 #define KVM_CAP_ARM_INJECT_EXT_DABT 178
1106 #define KVM_CAP_S390_VCPU_RESETS 179
1107 #define KVM_CAP_S390_PROTECTED 180
1108 #define KVM_CAP_PPC_SECURE_GUEST 181
1109 #define KVM_CAP_HALT_POLL 182
1110 #define KVM_CAP_ASYNC_PF_INT 183
1111 #define KVM_CAP_LAST_CPU 184
1112 #define KVM_CAP_SMALLER_MAXPHYADDR 185
1113 #define KVM_CAP_S390_DIAG318 186
1114 #define KVM_CAP_STEAL_TIME 187
1115 #define KVM_CAP_X86_USER_SPACE_MSR 188
1116 #define KVM_CAP_X86_MSR_FILTER 189
1117 #define KVM_CAP_ENFORCE_PV_FEATURE_CPUID 190
1118 #define KVM_CAP_SYS_HYPERV_CPUID 191
1119 #define KVM_CAP_DIRTY_LOG_RING 192
1120 #define KVM_CAP_X86_BUS_LOCK_EXIT 193
1121 #define KVM_CAP_PPC_DAWR1 194
1122 #define KVM_CAP_SET_GUEST_DEBUG2 195
1123 #define KVM_CAP_SGX_ATTRIBUTE 196
1124 #define KVM_CAP_VM_COPY_ENC_CONTEXT_FROM 197
1125 #define KVM_CAP_PTP_KVM 198
1126 #define KVM_CAP_HYPERV_ENFORCE_CPUID 199
1127 #define KVM_CAP_SREGS2 200
1128 #define KVM_CAP_EXIT_HYPERCALL 201
1129 #define KVM_CAP_PPC_RPT_INVALIDATE 202
1130 #define KVM_CAP_BINARY_STATS_FD 203
1131 #define KVM_CAP_EXIT_ON_EMULATION_FAILURE 204
1132 #define KVM_CAP_ARM_MTE 205
1133 #define KVM_CAP_VM_MOVE_ENC_CONTEXT_FROM 206
1134 #define KVM_CAP_VM_GPA_BITS 207
1135 #define KVM_CAP_XSAVE2 208
1136 #define KVM_CAP_SYS_ATTRIBUTES 209
1137 
1138 #ifdef KVM_CAP_IRQ_ROUTING
1139 
1140 struct kvm_irq_routing_irqchip {
1141 	__u32 irqchip;
1142 	__u32 pin;
1143 };
1144 
1145 struct kvm_irq_routing_msi {
1146 	__u32 address_lo;
1147 	__u32 address_hi;
1148 	__u32 data;
1149 	union {
1150 		__u32 pad;
1151 		__u32 devid;
1152 	};
1153 };
1154 
1155 struct kvm_irq_routing_s390_adapter {
1156 	__u64 ind_addr;
1157 	__u64 summary_addr;
1158 	__u64 ind_offset;
1159 	__u32 summary_offset;
1160 	__u32 adapter_id;
1161 };
1162 
1163 struct kvm_irq_routing_hv_sint {
1164 	__u32 vcpu;
1165 	__u32 sint;
1166 };
1167 
1168 struct kvm_irq_routing_xen_evtchn {
1169 	__u32 port;
1170 	__u32 vcpu;
1171 	__u32 priority;
1172 };
1173 
1174 #define KVM_IRQ_ROUTING_XEN_EVTCHN_PRIO_2LEVEL ((__u32)(-1))
1175 
1176 /* gsi routing entry types */
1177 #define KVM_IRQ_ROUTING_IRQCHIP 1
1178 #define KVM_IRQ_ROUTING_MSI 2
1179 #define KVM_IRQ_ROUTING_S390_ADAPTER 3
1180 #define KVM_IRQ_ROUTING_HV_SINT 4
1181 #define KVM_IRQ_ROUTING_XEN_EVTCHN 5
1182 
1183 struct kvm_irq_routing_entry {
1184 	__u32 gsi;
1185 	__u32 type;
1186 	__u32 flags;
1187 	__u32 pad;
1188 	union {
1189 		struct kvm_irq_routing_irqchip irqchip;
1190 		struct kvm_irq_routing_msi msi;
1191 		struct kvm_irq_routing_s390_adapter adapter;
1192 		struct kvm_irq_routing_hv_sint hv_sint;
1193 		struct kvm_irq_routing_xen_evtchn xen_evtchn;
1194 		__u32 pad[8];
1195 	} u;
1196 };
1197 
1198 struct kvm_irq_routing {
1199 	__u32 nr;
1200 	__u32 flags;
1201 	struct kvm_irq_routing_entry entries[0];
1202 };
1203 
1204 #endif
1205 
1206 #ifdef KVM_CAP_MCE
1207 /* x86 MCE */
1208 struct kvm_x86_mce {
1209 	__u64 status;
1210 	__u64 addr;
1211 	__u64 misc;
1212 	__u64 mcg_status;
1213 	__u8 bank;
1214 	__u8 pad1[7];
1215 	__u64 pad2[3];
1216 };
1217 #endif
1218 
1219 #ifdef KVM_CAP_XEN_HVM
1220 #define KVM_XEN_HVM_CONFIG_HYPERCALL_MSR	(1 << 0)
1221 #define KVM_XEN_HVM_CONFIG_INTERCEPT_HCALL	(1 << 1)
1222 #define KVM_XEN_HVM_CONFIG_SHARED_INFO		(1 << 2)
1223 #define KVM_XEN_HVM_CONFIG_RUNSTATE		(1 << 3)
1224 #define KVM_XEN_HVM_CONFIG_EVTCHN_2LEVEL	(1 << 4)
1225 
1226 struct kvm_xen_hvm_config {
1227 	__u32 flags;
1228 	__u32 msr;
1229 	__u64 blob_addr_32;
1230 	__u64 blob_addr_64;
1231 	__u8 blob_size_32;
1232 	__u8 blob_size_64;
1233 	__u8 pad2[30];
1234 };
1235 #endif
1236 
1237 #define KVM_IRQFD_FLAG_DEASSIGN (1 << 0)
1238 /*
1239  * Available with KVM_CAP_IRQFD_RESAMPLE
1240  *
1241  * KVM_IRQFD_FLAG_RESAMPLE indicates resamplefd is valid and specifies
1242  * the irqfd to operate in resampling mode for level triggered interrupt
1243  * emulation.  See Documentation/virt/kvm/api.rst.
1244  */
1245 #define KVM_IRQFD_FLAG_RESAMPLE (1 << 1)
1246 
1247 struct kvm_irqfd {
1248 	__u32 fd;
1249 	__u32 gsi;
1250 	__u32 flags;
1251 	__u32 resamplefd;
1252 	__u8  pad[16];
1253 };
1254 
1255 /* For KVM_CAP_ADJUST_CLOCK */
1256 
1257 /* Do not use 1, KVM_CHECK_EXTENSION returned it before we had flags.  */
1258 #define KVM_CLOCK_TSC_STABLE		2
1259 #define KVM_CLOCK_REALTIME		(1 << 2)
1260 #define KVM_CLOCK_HOST_TSC		(1 << 3)
1261 
1262 struct kvm_clock_data {
1263 	__u64 clock;
1264 	__u32 flags;
1265 	__u32 pad0;
1266 	__u64 realtime;
1267 	__u64 host_tsc;
1268 	__u32 pad[4];
1269 };
1270 
1271 /* For KVM_CAP_SW_TLB */
1272 
1273 #define KVM_MMU_FSL_BOOKE_NOHV		0
1274 #define KVM_MMU_FSL_BOOKE_HV		1
1275 
1276 struct kvm_config_tlb {
1277 	__u64 params;
1278 	__u64 array;
1279 	__u32 mmu_type;
1280 	__u32 array_len;
1281 };
1282 
1283 struct kvm_dirty_tlb {
1284 	__u64 bitmap;
1285 	__u32 num_dirty;
1286 };
1287 
1288 /* Available with KVM_CAP_ONE_REG */
1289 
1290 #define KVM_REG_ARCH_MASK	0xff00000000000000ULL
1291 #define KVM_REG_GENERIC		0x0000000000000000ULL
1292 
1293 /*
1294  * Architecture specific registers are to be defined in arch headers and
1295  * ORed with the arch identifier.
1296  */
1297 #define KVM_REG_PPC		0x1000000000000000ULL
1298 #define KVM_REG_X86		0x2000000000000000ULL
1299 #define KVM_REG_IA64		0x3000000000000000ULL
1300 #define KVM_REG_ARM		0x4000000000000000ULL
1301 #define KVM_REG_S390		0x5000000000000000ULL
1302 #define KVM_REG_ARM64		0x6000000000000000ULL
1303 #define KVM_REG_MIPS		0x7000000000000000ULL
1304 #define KVM_REG_RISCV		0x8000000000000000ULL
1305 
1306 #define KVM_REG_SIZE_SHIFT	52
1307 #define KVM_REG_SIZE_MASK	0x00f0000000000000ULL
1308 #define KVM_REG_SIZE_U8		0x0000000000000000ULL
1309 #define KVM_REG_SIZE_U16	0x0010000000000000ULL
1310 #define KVM_REG_SIZE_U32	0x0020000000000000ULL
1311 #define KVM_REG_SIZE_U64	0x0030000000000000ULL
1312 #define KVM_REG_SIZE_U128	0x0040000000000000ULL
1313 #define KVM_REG_SIZE_U256	0x0050000000000000ULL
1314 #define KVM_REG_SIZE_U512	0x0060000000000000ULL
1315 #define KVM_REG_SIZE_U1024	0x0070000000000000ULL
1316 #define KVM_REG_SIZE_U2048	0x0080000000000000ULL
1317 
1318 struct kvm_reg_list {
1319 	__u64 n; /* number of regs */
1320 	__u64 reg[0];
1321 };
1322 
1323 struct kvm_one_reg {
1324 	__u64 id;
1325 	__u64 addr;
1326 };
1327 
1328 #define KVM_MSI_VALID_DEVID	(1U << 0)
1329 struct kvm_msi {
1330 	__u32 address_lo;
1331 	__u32 address_hi;
1332 	__u32 data;
1333 	__u32 flags;
1334 	__u32 devid;
1335 	__u8  pad[12];
1336 };
1337 
1338 struct kvm_arm_device_addr {
1339 	__u64 id;
1340 	__u64 addr;
1341 };
1342 
1343 /*
1344  * Device control API, available with KVM_CAP_DEVICE_CTRL
1345  */
1346 #define KVM_CREATE_DEVICE_TEST		1
1347 
1348 struct kvm_create_device {
1349 	__u32	type;	/* in: KVM_DEV_TYPE_xxx */
1350 	__u32	fd;	/* out: device handle */
1351 	__u32	flags;	/* in: KVM_CREATE_DEVICE_xxx */
1352 };
1353 
1354 struct kvm_device_attr {
1355 	__u32	flags;		/* no flags currently defined */
1356 	__u32	group;		/* device-defined */
1357 	__u64	attr;		/* group-defined */
1358 	__u64	addr;		/* userspace address of attr data */
1359 };
1360 
1361 #define  KVM_DEV_VFIO_GROUP			1
1362 #define   KVM_DEV_VFIO_GROUP_ADD			1
1363 #define   KVM_DEV_VFIO_GROUP_DEL			2
1364 #define   KVM_DEV_VFIO_GROUP_SET_SPAPR_TCE		3
1365 
1366 enum kvm_device_type {
1367 	KVM_DEV_TYPE_FSL_MPIC_20	= 1,
1368 #define KVM_DEV_TYPE_FSL_MPIC_20	KVM_DEV_TYPE_FSL_MPIC_20
1369 	KVM_DEV_TYPE_FSL_MPIC_42,
1370 #define KVM_DEV_TYPE_FSL_MPIC_42	KVM_DEV_TYPE_FSL_MPIC_42
1371 	KVM_DEV_TYPE_XICS,
1372 #define KVM_DEV_TYPE_XICS		KVM_DEV_TYPE_XICS
1373 	KVM_DEV_TYPE_VFIO,
1374 #define KVM_DEV_TYPE_VFIO		KVM_DEV_TYPE_VFIO
1375 	KVM_DEV_TYPE_ARM_VGIC_V2,
1376 #define KVM_DEV_TYPE_ARM_VGIC_V2	KVM_DEV_TYPE_ARM_VGIC_V2
1377 	KVM_DEV_TYPE_FLIC,
1378 #define KVM_DEV_TYPE_FLIC		KVM_DEV_TYPE_FLIC
1379 	KVM_DEV_TYPE_ARM_VGIC_V3,
1380 #define KVM_DEV_TYPE_ARM_VGIC_V3	KVM_DEV_TYPE_ARM_VGIC_V3
1381 	KVM_DEV_TYPE_ARM_VGIC_ITS,
1382 #define KVM_DEV_TYPE_ARM_VGIC_ITS	KVM_DEV_TYPE_ARM_VGIC_ITS
1383 	KVM_DEV_TYPE_XIVE,
1384 #define KVM_DEV_TYPE_XIVE		KVM_DEV_TYPE_XIVE
1385 	KVM_DEV_TYPE_ARM_PV_TIME,
1386 #define KVM_DEV_TYPE_ARM_PV_TIME	KVM_DEV_TYPE_ARM_PV_TIME
1387 	KVM_DEV_TYPE_MAX,
1388 };
1389 
1390 struct kvm_vfio_spapr_tce {
1391 	__s32	groupfd;
1392 	__s32	tablefd;
1393 };
1394 
1395 /*
1396  * ioctls for VM fds
1397  */
1398 #define KVM_SET_MEMORY_REGION     _IOW(KVMIO,  0x40, struct kvm_memory_region)
1399 /*
1400  * KVM_CREATE_VCPU receives as a parameter the vcpu slot, and returns
1401  * a vcpu fd.
1402  */
1403 #define KVM_CREATE_VCPU           _IO(KVMIO,   0x41)
1404 #define KVM_GET_DIRTY_LOG         _IOW(KVMIO,  0x42, struct kvm_dirty_log)
1405 /* KVM_SET_MEMORY_ALIAS is obsolete: */
1406 #define KVM_SET_MEMORY_ALIAS      _IOW(KVMIO,  0x43, struct kvm_memory_alias)
1407 #define KVM_SET_NR_MMU_PAGES      _IO(KVMIO,   0x44)
1408 #define KVM_GET_NR_MMU_PAGES      _IO(KVMIO,   0x45)
1409 #define KVM_SET_USER_MEMORY_REGION _IOW(KVMIO, 0x46, \
1410 					struct kvm_userspace_memory_region)
1411 #define KVM_SET_TSS_ADDR          _IO(KVMIO,   0x47)
1412 #define KVM_SET_IDENTITY_MAP_ADDR _IOW(KVMIO,  0x48, __u64)
1413 
1414 /* enable ucontrol for s390 */
1415 struct kvm_s390_ucas_mapping {
1416 	__u64 user_addr;
1417 	__u64 vcpu_addr;
1418 	__u64 length;
1419 };
1420 #define KVM_S390_UCAS_MAP        _IOW(KVMIO, 0x50, struct kvm_s390_ucas_mapping)
1421 #define KVM_S390_UCAS_UNMAP      _IOW(KVMIO, 0x51, struct kvm_s390_ucas_mapping)
1422 #define KVM_S390_VCPU_FAULT	 _IOW(KVMIO, 0x52, unsigned long)
1423 
1424 /* Device model IOC */
1425 #define KVM_CREATE_IRQCHIP        _IO(KVMIO,   0x60)
1426 #define KVM_IRQ_LINE              _IOW(KVMIO,  0x61, struct kvm_irq_level)
1427 #define KVM_GET_IRQCHIP           _IOWR(KVMIO, 0x62, struct kvm_irqchip)
1428 #define KVM_SET_IRQCHIP           _IOR(KVMIO,  0x63, struct kvm_irqchip)
1429 #define KVM_CREATE_PIT            _IO(KVMIO,   0x64)
1430 #define KVM_GET_PIT               _IOWR(KVMIO, 0x65, struct kvm_pit_state)
1431 #define KVM_SET_PIT               _IOR(KVMIO,  0x66, struct kvm_pit_state)
1432 #define KVM_IRQ_LINE_STATUS       _IOWR(KVMIO, 0x67, struct kvm_irq_level)
1433 #define KVM_REGISTER_COALESCED_MMIO \
1434 			_IOW(KVMIO,  0x67, struct kvm_coalesced_mmio_zone)
1435 #define KVM_UNREGISTER_COALESCED_MMIO \
1436 			_IOW(KVMIO,  0x68, struct kvm_coalesced_mmio_zone)
1437 #define KVM_ASSIGN_PCI_DEVICE     _IOR(KVMIO,  0x69, \
1438 				       struct kvm_assigned_pci_dev)
1439 #define KVM_SET_GSI_ROUTING       _IOW(KVMIO,  0x6a, struct kvm_irq_routing)
1440 /* deprecated, replaced by KVM_ASSIGN_DEV_IRQ */
1441 #define KVM_ASSIGN_IRQ            __KVM_DEPRECATED_VM_R_0x70
1442 #define KVM_ASSIGN_DEV_IRQ        _IOW(KVMIO,  0x70, struct kvm_assigned_irq)
1443 #define KVM_REINJECT_CONTROL      _IO(KVMIO,   0x71)
1444 #define KVM_DEASSIGN_PCI_DEVICE   _IOW(KVMIO,  0x72, \
1445 				       struct kvm_assigned_pci_dev)
1446 #define KVM_ASSIGN_SET_MSIX_NR    _IOW(KVMIO,  0x73, \
1447 				       struct kvm_assigned_msix_nr)
1448 #define KVM_ASSIGN_SET_MSIX_ENTRY _IOW(KVMIO,  0x74, \
1449 				       struct kvm_assigned_msix_entry)
1450 #define KVM_DEASSIGN_DEV_IRQ      _IOW(KVMIO,  0x75, struct kvm_assigned_irq)
1451 #define KVM_IRQFD                 _IOW(KVMIO,  0x76, struct kvm_irqfd)
1452 #define KVM_CREATE_PIT2		  _IOW(KVMIO,  0x77, struct kvm_pit_config)
1453 #define KVM_SET_BOOT_CPU_ID       _IO(KVMIO,   0x78)
1454 #define KVM_IOEVENTFD             _IOW(KVMIO,  0x79, struct kvm_ioeventfd)
1455 #define KVM_XEN_HVM_CONFIG        _IOW(KVMIO,  0x7a, struct kvm_xen_hvm_config)
1456 #define KVM_SET_CLOCK             _IOW(KVMIO,  0x7b, struct kvm_clock_data)
1457 #define KVM_GET_CLOCK             _IOR(KVMIO,  0x7c, struct kvm_clock_data)
1458 /* Available with KVM_CAP_PIT_STATE2 */
1459 #define KVM_GET_PIT2              _IOR(KVMIO,  0x9f, struct kvm_pit_state2)
1460 #define KVM_SET_PIT2              _IOW(KVMIO,  0xa0, struct kvm_pit_state2)
1461 /* Available with KVM_CAP_PPC_GET_PVINFO */
1462 #define KVM_PPC_GET_PVINFO	  _IOW(KVMIO,  0xa1, struct kvm_ppc_pvinfo)
1463 /* Available with KVM_CAP_TSC_CONTROL */
1464 #define KVM_SET_TSC_KHZ           _IO(KVMIO,  0xa2)
1465 #define KVM_GET_TSC_KHZ           _IO(KVMIO,  0xa3)
1466 /* Available with KVM_CAP_PCI_2_3 */
1467 #define KVM_ASSIGN_SET_INTX_MASK  _IOW(KVMIO,  0xa4, \
1468 				       struct kvm_assigned_pci_dev)
1469 /* Available with KVM_CAP_SIGNAL_MSI */
1470 #define KVM_SIGNAL_MSI            _IOW(KVMIO,  0xa5, struct kvm_msi)
1471 /* Available with KVM_CAP_PPC_GET_SMMU_INFO */
1472 #define KVM_PPC_GET_SMMU_INFO	  _IOR(KVMIO,  0xa6, struct kvm_ppc_smmu_info)
1473 /* Available with KVM_CAP_PPC_ALLOC_HTAB */
1474 #define KVM_PPC_ALLOCATE_HTAB	  _IOWR(KVMIO, 0xa7, __u32)
1475 #define KVM_CREATE_SPAPR_TCE	  _IOW(KVMIO,  0xa8, struct kvm_create_spapr_tce)
1476 #define KVM_CREATE_SPAPR_TCE_64	  _IOW(KVMIO,  0xa8, \
1477 				       struct kvm_create_spapr_tce_64)
1478 /* Available with KVM_CAP_RMA */
1479 #define KVM_ALLOCATE_RMA	  _IOR(KVMIO,  0xa9, struct kvm_allocate_rma)
1480 /* Available with KVM_CAP_PPC_HTAB_FD */
1481 #define KVM_PPC_GET_HTAB_FD	  _IOW(KVMIO,  0xaa, struct kvm_get_htab_fd)
1482 /* Available with KVM_CAP_ARM_SET_DEVICE_ADDR */
1483 #define KVM_ARM_SET_DEVICE_ADDR	  _IOW(KVMIO,  0xab, struct kvm_arm_device_addr)
1484 /* Available with KVM_CAP_PPC_RTAS */
1485 #define KVM_PPC_RTAS_DEFINE_TOKEN _IOW(KVMIO,  0xac, struct kvm_rtas_token_args)
1486 /* Available with KVM_CAP_SPAPR_RESIZE_HPT */
1487 #define KVM_PPC_RESIZE_HPT_PREPARE _IOR(KVMIO, 0xad, struct kvm_ppc_resize_hpt)
1488 #define KVM_PPC_RESIZE_HPT_COMMIT  _IOR(KVMIO, 0xae, struct kvm_ppc_resize_hpt)
1489 /* Available with KVM_CAP_PPC_RADIX_MMU or KVM_CAP_PPC_HASH_MMU_V3 */
1490 #define KVM_PPC_CONFIGURE_V3_MMU  _IOW(KVMIO,  0xaf, struct kvm_ppc_mmuv3_cfg)
1491 /* Available with KVM_CAP_PPC_RADIX_MMU */
1492 #define KVM_PPC_GET_RMMU_INFO	  _IOW(KVMIO,  0xb0, struct kvm_ppc_rmmu_info)
1493 /* Available with KVM_CAP_PPC_GET_CPU_CHAR */
1494 #define KVM_PPC_GET_CPU_CHAR	  _IOR(KVMIO,  0xb1, struct kvm_ppc_cpu_char)
1495 /* Available with KVM_CAP_PMU_EVENT_FILTER */
1496 #define KVM_SET_PMU_EVENT_FILTER  _IOW(KVMIO,  0xb2, struct kvm_pmu_event_filter)
1497 #define KVM_PPC_SVM_OFF		  _IO(KVMIO,  0xb3)
1498 #define KVM_ARM_MTE_COPY_TAGS	  _IOR(KVMIO,  0xb4, struct kvm_arm_copy_mte_tags)
1499 
1500 /* ioctl for vm fd */
1501 #define KVM_CREATE_DEVICE	  _IOWR(KVMIO,  0xe0, struct kvm_create_device)
1502 
1503 /* ioctls for fds returned by KVM_CREATE_DEVICE */
1504 #define KVM_SET_DEVICE_ATTR	  _IOW(KVMIO,  0xe1, struct kvm_device_attr)
1505 #define KVM_GET_DEVICE_ATTR	  _IOW(KVMIO,  0xe2, struct kvm_device_attr)
1506 #define KVM_HAS_DEVICE_ATTR	  _IOW(KVMIO,  0xe3, struct kvm_device_attr)
1507 
1508 /*
1509  * ioctls for vcpu fds
1510  */
1511 #define KVM_RUN                   _IO(KVMIO,   0x80)
1512 #define KVM_GET_REGS              _IOR(KVMIO,  0x81, struct kvm_regs)
1513 #define KVM_SET_REGS              _IOW(KVMIO,  0x82, struct kvm_regs)
1514 #define KVM_GET_SREGS             _IOR(KVMIO,  0x83, struct kvm_sregs)
1515 #define KVM_SET_SREGS             _IOW(KVMIO,  0x84, struct kvm_sregs)
1516 #define KVM_TRANSLATE             _IOWR(KVMIO, 0x85, struct kvm_translation)
1517 #define KVM_INTERRUPT             _IOW(KVMIO,  0x86, struct kvm_interrupt)
1518 /* KVM_DEBUG_GUEST is no longer supported, use KVM_SET_GUEST_DEBUG instead */
1519 #define KVM_DEBUG_GUEST           __KVM_DEPRECATED_VCPU_W_0x87
1520 #define KVM_GET_MSRS              _IOWR(KVMIO, 0x88, struct kvm_msrs)
1521 #define KVM_SET_MSRS              _IOW(KVMIO,  0x89, struct kvm_msrs)
1522 #define KVM_SET_CPUID             _IOW(KVMIO,  0x8a, struct kvm_cpuid)
1523 #define KVM_SET_SIGNAL_MASK       _IOW(KVMIO,  0x8b, struct kvm_signal_mask)
1524 #define KVM_GET_FPU               _IOR(KVMIO,  0x8c, struct kvm_fpu)
1525 #define KVM_SET_FPU               _IOW(KVMIO,  0x8d, struct kvm_fpu)
1526 #define KVM_GET_LAPIC             _IOR(KVMIO,  0x8e, struct kvm_lapic_state)
1527 #define KVM_SET_LAPIC             _IOW(KVMIO,  0x8f, struct kvm_lapic_state)
1528 #define KVM_SET_CPUID2            _IOW(KVMIO,  0x90, struct kvm_cpuid2)
1529 #define KVM_GET_CPUID2            _IOWR(KVMIO, 0x91, struct kvm_cpuid2)
1530 /* Available with KVM_CAP_VAPIC */
1531 #define KVM_TPR_ACCESS_REPORTING  _IOWR(KVMIO, 0x92, struct kvm_tpr_access_ctl)
1532 /* Available with KVM_CAP_VAPIC */
1533 #define KVM_SET_VAPIC_ADDR        _IOW(KVMIO,  0x93, struct kvm_vapic_addr)
1534 /* valid for virtual machine (for floating interrupt)_and_ vcpu */
1535 #define KVM_S390_INTERRUPT        _IOW(KVMIO,  0x94, struct kvm_s390_interrupt)
1536 /* store status for s390 */
1537 #define KVM_S390_STORE_STATUS_NOADDR    (-1ul)
1538 #define KVM_S390_STORE_STATUS_PREFIXED  (-2ul)
1539 #define KVM_S390_STORE_STATUS	  _IOW(KVMIO,  0x95, unsigned long)
1540 /* initial ipl psw for s390 */
1541 #define KVM_S390_SET_INITIAL_PSW  _IOW(KVMIO,  0x96, struct kvm_s390_psw)
1542 /* initial reset for s390 */
1543 #define KVM_S390_INITIAL_RESET    _IO(KVMIO,   0x97)
1544 #define KVM_GET_MP_STATE          _IOR(KVMIO,  0x98, struct kvm_mp_state)
1545 #define KVM_SET_MP_STATE          _IOW(KVMIO,  0x99, struct kvm_mp_state)
1546 /* Available with KVM_CAP_USER_NMI */
1547 #define KVM_NMI                   _IO(KVMIO,   0x9a)
1548 /* Available with KVM_CAP_SET_GUEST_DEBUG */
1549 #define KVM_SET_GUEST_DEBUG       _IOW(KVMIO,  0x9b, struct kvm_guest_debug)
1550 /* MCE for x86 */
1551 #define KVM_X86_SETUP_MCE         _IOW(KVMIO,  0x9c, __u64)
1552 #define KVM_X86_GET_MCE_CAP_SUPPORTED _IOR(KVMIO,  0x9d, __u64)
1553 #define KVM_X86_SET_MCE           _IOW(KVMIO,  0x9e, struct kvm_x86_mce)
1554 /* Available with KVM_CAP_VCPU_EVENTS */
1555 #define KVM_GET_VCPU_EVENTS       _IOR(KVMIO,  0x9f, struct kvm_vcpu_events)
1556 #define KVM_SET_VCPU_EVENTS       _IOW(KVMIO,  0xa0, struct kvm_vcpu_events)
1557 /* Available with KVM_CAP_DEBUGREGS */
1558 #define KVM_GET_DEBUGREGS         _IOR(KVMIO,  0xa1, struct kvm_debugregs)
1559 #define KVM_SET_DEBUGREGS         _IOW(KVMIO,  0xa2, struct kvm_debugregs)
1560 /*
1561  * vcpu version available with KVM_ENABLE_CAP
1562  * vm version available with KVM_CAP_ENABLE_CAP_VM
1563  */
1564 #define KVM_ENABLE_CAP            _IOW(KVMIO,  0xa3, struct kvm_enable_cap)
1565 /* Available with KVM_CAP_XSAVE */
1566 #define KVM_GET_XSAVE		  _IOR(KVMIO,  0xa4, struct kvm_xsave)
1567 #define KVM_SET_XSAVE		  _IOW(KVMIO,  0xa5, struct kvm_xsave)
1568 /* Available with KVM_CAP_XCRS */
1569 #define KVM_GET_XCRS		  _IOR(KVMIO,  0xa6, struct kvm_xcrs)
1570 #define KVM_SET_XCRS		  _IOW(KVMIO,  0xa7, struct kvm_xcrs)
1571 /* Available with KVM_CAP_SW_TLB */
1572 #define KVM_DIRTY_TLB		  _IOW(KVMIO,  0xaa, struct kvm_dirty_tlb)
1573 /* Available with KVM_CAP_ONE_REG */
1574 #define KVM_GET_ONE_REG		  _IOW(KVMIO,  0xab, struct kvm_one_reg)
1575 #define KVM_SET_ONE_REG		  _IOW(KVMIO,  0xac, struct kvm_one_reg)
1576 /* VM is being stopped by host */
1577 #define KVM_KVMCLOCK_CTRL	  _IO(KVMIO,   0xad)
1578 #define KVM_ARM_VCPU_INIT	  _IOW(KVMIO,  0xae, struct kvm_vcpu_init)
1579 #define KVM_ARM_PREFERRED_TARGET  _IOR(KVMIO,  0xaf, struct kvm_vcpu_init)
1580 #define KVM_GET_REG_LIST	  _IOWR(KVMIO, 0xb0, struct kvm_reg_list)
1581 /* Available with KVM_CAP_S390_MEM_OP */
1582 #define KVM_S390_MEM_OP		  _IOW(KVMIO,  0xb1, struct kvm_s390_mem_op)
1583 /* Available with KVM_CAP_S390_SKEYS */
1584 #define KVM_S390_GET_SKEYS      _IOW(KVMIO, 0xb2, struct kvm_s390_skeys)
1585 #define KVM_S390_SET_SKEYS      _IOW(KVMIO, 0xb3, struct kvm_s390_skeys)
1586 /* Available with KVM_CAP_S390_INJECT_IRQ */
1587 #define KVM_S390_IRQ              _IOW(KVMIO,  0xb4, struct kvm_s390_irq)
1588 /* Available with KVM_CAP_S390_IRQ_STATE */
1589 #define KVM_S390_SET_IRQ_STATE	  _IOW(KVMIO, 0xb5, struct kvm_s390_irq_state)
1590 #define KVM_S390_GET_IRQ_STATE	  _IOW(KVMIO, 0xb6, struct kvm_s390_irq_state)
1591 /* Available with KVM_CAP_X86_SMM */
1592 #define KVM_SMI                   _IO(KVMIO,   0xb7)
1593 /* Available with KVM_CAP_S390_CMMA_MIGRATION */
1594 #define KVM_S390_GET_CMMA_BITS      _IOWR(KVMIO, 0xb8, struct kvm_s390_cmma_log)
1595 #define KVM_S390_SET_CMMA_BITS      _IOW(KVMIO, 0xb9, struct kvm_s390_cmma_log)
1596 /* Memory Encryption Commands */
1597 #define KVM_MEMORY_ENCRYPT_OP      _IOWR(KVMIO, 0xba, unsigned long)
1598 
1599 struct kvm_enc_region {
1600 	__u64 addr;
1601 	__u64 size;
1602 };
1603 
1604 #define KVM_MEMORY_ENCRYPT_REG_REGION    _IOR(KVMIO, 0xbb, struct kvm_enc_region)
1605 #define KVM_MEMORY_ENCRYPT_UNREG_REGION  _IOR(KVMIO, 0xbc, struct kvm_enc_region)
1606 
1607 /* Available with KVM_CAP_HYPERV_EVENTFD */
1608 #define KVM_HYPERV_EVENTFD        _IOW(KVMIO,  0xbd, struct kvm_hyperv_eventfd)
1609 
1610 /* Available with KVM_CAP_NESTED_STATE */
1611 #define KVM_GET_NESTED_STATE         _IOWR(KVMIO, 0xbe, struct kvm_nested_state)
1612 #define KVM_SET_NESTED_STATE         _IOW(KVMIO,  0xbf, struct kvm_nested_state)
1613 
1614 /* Available with KVM_CAP_MANUAL_DIRTY_LOG_PROTECT_2 */
1615 #define KVM_CLEAR_DIRTY_LOG          _IOWR(KVMIO, 0xc0, struct kvm_clear_dirty_log)
1616 
1617 /* Available with KVM_CAP_HYPERV_CPUID (vcpu) / KVM_CAP_SYS_HYPERV_CPUID (system) */
1618 #define KVM_GET_SUPPORTED_HV_CPUID _IOWR(KVMIO, 0xc1, struct kvm_cpuid2)
1619 
1620 /* Available with KVM_CAP_ARM_SVE */
1621 #define KVM_ARM_VCPU_FINALIZE	  _IOW(KVMIO,  0xc2, int)
1622 
1623 /* Available with  KVM_CAP_S390_VCPU_RESETS */
1624 #define KVM_S390_NORMAL_RESET	_IO(KVMIO,   0xc3)
1625 #define KVM_S390_CLEAR_RESET	_IO(KVMIO,   0xc4)
1626 
1627 /* Available with KVM_CAP_XSAVE2 */
1628 #define KVM_GET_XSAVE2		  _IOR(KVMIO,  0xcf, struct kvm_xsave)
1629 
1630 struct kvm_s390_pv_sec_parm {
1631 	__u64 origin;
1632 	__u64 length;
1633 };
1634 
1635 struct kvm_s390_pv_unp {
1636 	__u64 addr;
1637 	__u64 size;
1638 	__u64 tweak;
1639 };
1640 
1641 enum pv_cmd_id {
1642 	KVM_PV_ENABLE,
1643 	KVM_PV_DISABLE,
1644 	KVM_PV_SET_SEC_PARMS,
1645 	KVM_PV_UNPACK,
1646 	KVM_PV_VERIFY,
1647 	KVM_PV_PREP_RESET,
1648 	KVM_PV_UNSHARE_ALL,
1649 };
1650 
1651 struct kvm_pv_cmd {
1652 	__u32 cmd;	/* Command to be executed */
1653 	__u16 rc;	/* Ultravisor return code */
1654 	__u16 rrc;	/* Ultravisor return reason code */
1655 	__u64 data;	/* Data or address */
1656 	__u32 flags;    /* flags for future extensions. Must be 0 for now */
1657 	__u32 reserved[3];
1658 };
1659 
1660 /* Available with KVM_CAP_S390_PROTECTED */
1661 #define KVM_S390_PV_COMMAND		_IOWR(KVMIO, 0xc5, struct kvm_pv_cmd)
1662 
1663 /* Available with KVM_CAP_X86_MSR_FILTER */
1664 #define KVM_X86_SET_MSR_FILTER	_IOW(KVMIO,  0xc6, struct kvm_msr_filter)
1665 
1666 /* Available with KVM_CAP_DIRTY_LOG_RING */
1667 #define KVM_RESET_DIRTY_RINGS		_IO(KVMIO, 0xc7)
1668 
1669 /* Per-VM Xen attributes */
1670 #define KVM_XEN_HVM_GET_ATTR	_IOWR(KVMIO, 0xc8, struct kvm_xen_hvm_attr)
1671 #define KVM_XEN_HVM_SET_ATTR	_IOW(KVMIO,  0xc9, struct kvm_xen_hvm_attr)
1672 
1673 struct kvm_xen_hvm_attr {
1674 	__u16 type;
1675 	__u16 pad[3];
1676 	union {
1677 		__u8 long_mode;
1678 		__u8 vector;
1679 		struct {
1680 			__u64 gfn;
1681 		} shared_info;
1682 		__u64 pad[8];
1683 	} u;
1684 };
1685 
1686 /* Available with KVM_CAP_XEN_HVM / KVM_XEN_HVM_CONFIG_SHARED_INFO */
1687 #define KVM_XEN_ATTR_TYPE_LONG_MODE		0x0
1688 #define KVM_XEN_ATTR_TYPE_SHARED_INFO		0x1
1689 #define KVM_XEN_ATTR_TYPE_UPCALL_VECTOR		0x2
1690 
1691 /* Per-vCPU Xen attributes */
1692 #define KVM_XEN_VCPU_GET_ATTR	_IOWR(KVMIO, 0xca, struct kvm_xen_vcpu_attr)
1693 #define KVM_XEN_VCPU_SET_ATTR	_IOW(KVMIO,  0xcb, struct kvm_xen_vcpu_attr)
1694 
1695 #define KVM_GET_SREGS2             _IOR(KVMIO,  0xcc, struct kvm_sregs2)
1696 #define KVM_SET_SREGS2             _IOW(KVMIO,  0xcd, struct kvm_sregs2)
1697 
1698 struct kvm_xen_vcpu_attr {
1699 	__u16 type;
1700 	__u16 pad[3];
1701 	union {
1702 		__u64 gpa;
1703 		__u64 pad[8];
1704 		struct {
1705 			__u64 state;
1706 			__u64 state_entry_time;
1707 			__u64 time_running;
1708 			__u64 time_runnable;
1709 			__u64 time_blocked;
1710 			__u64 time_offline;
1711 		} runstate;
1712 	} u;
1713 };
1714 
1715 /* Available with KVM_CAP_XEN_HVM / KVM_XEN_HVM_CONFIG_SHARED_INFO */
1716 #define KVM_XEN_VCPU_ATTR_TYPE_VCPU_INFO	0x0
1717 #define KVM_XEN_VCPU_ATTR_TYPE_VCPU_TIME_INFO	0x1
1718 #define KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_ADDR	0x2
1719 #define KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_CURRENT	0x3
1720 #define KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_DATA	0x4
1721 #define KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_ADJUST	0x5
1722 
1723 /* Secure Encrypted Virtualization command */
1724 enum sev_cmd_id {
1725 	/* Guest initialization commands */
1726 	KVM_SEV_INIT = 0,
1727 	KVM_SEV_ES_INIT,
1728 	/* Guest launch commands */
1729 	KVM_SEV_LAUNCH_START,
1730 	KVM_SEV_LAUNCH_UPDATE_DATA,
1731 	KVM_SEV_LAUNCH_UPDATE_VMSA,
1732 	KVM_SEV_LAUNCH_SECRET,
1733 	KVM_SEV_LAUNCH_MEASURE,
1734 	KVM_SEV_LAUNCH_FINISH,
1735 	/* Guest migration commands (outgoing) */
1736 	KVM_SEV_SEND_START,
1737 	KVM_SEV_SEND_UPDATE_DATA,
1738 	KVM_SEV_SEND_UPDATE_VMSA,
1739 	KVM_SEV_SEND_FINISH,
1740 	/* Guest migration commands (incoming) */
1741 	KVM_SEV_RECEIVE_START,
1742 	KVM_SEV_RECEIVE_UPDATE_DATA,
1743 	KVM_SEV_RECEIVE_UPDATE_VMSA,
1744 	KVM_SEV_RECEIVE_FINISH,
1745 	/* Guest status and debug commands */
1746 	KVM_SEV_GUEST_STATUS,
1747 	KVM_SEV_DBG_DECRYPT,
1748 	KVM_SEV_DBG_ENCRYPT,
1749 	/* Guest certificates commands */
1750 	KVM_SEV_CERT_EXPORT,
1751 	/* Attestation report */
1752 	KVM_SEV_GET_ATTESTATION_REPORT,
1753 	/* Guest Migration Extension */
1754 	KVM_SEV_SEND_CANCEL,
1755 
1756 	KVM_SEV_NR_MAX,
1757 };
1758 
1759 struct kvm_sev_cmd {
1760 	__u32 id;
1761 	__u64 data;
1762 	__u32 error;
1763 	__u32 sev_fd;
1764 };
1765 
1766 struct kvm_sev_launch_start {
1767 	__u32 handle;
1768 	__u32 policy;
1769 	__u64 dh_uaddr;
1770 	__u32 dh_len;
1771 	__u64 session_uaddr;
1772 	__u32 session_len;
1773 };
1774 
1775 struct kvm_sev_launch_update_data {
1776 	__u64 uaddr;
1777 	__u32 len;
1778 };
1779 
1780 
1781 struct kvm_sev_launch_secret {
1782 	__u64 hdr_uaddr;
1783 	__u32 hdr_len;
1784 	__u64 guest_uaddr;
1785 	__u32 guest_len;
1786 	__u64 trans_uaddr;
1787 	__u32 trans_len;
1788 };
1789 
1790 struct kvm_sev_launch_measure {
1791 	__u64 uaddr;
1792 	__u32 len;
1793 };
1794 
1795 struct kvm_sev_guest_status {
1796 	__u32 handle;
1797 	__u32 policy;
1798 	__u32 state;
1799 };
1800 
1801 struct kvm_sev_dbg {
1802 	__u64 src_uaddr;
1803 	__u64 dst_uaddr;
1804 	__u32 len;
1805 };
1806 
1807 struct kvm_sev_attestation_report {
1808 	__u8 mnonce[16];
1809 	__u64 uaddr;
1810 	__u32 len;
1811 };
1812 
1813 struct kvm_sev_send_start {
1814 	__u32 policy;
1815 	__u64 pdh_cert_uaddr;
1816 	__u32 pdh_cert_len;
1817 	__u64 plat_certs_uaddr;
1818 	__u32 plat_certs_len;
1819 	__u64 amd_certs_uaddr;
1820 	__u32 amd_certs_len;
1821 	__u64 session_uaddr;
1822 	__u32 session_len;
1823 };
1824 
1825 struct kvm_sev_send_update_data {
1826 	__u64 hdr_uaddr;
1827 	__u32 hdr_len;
1828 	__u64 guest_uaddr;
1829 	__u32 guest_len;
1830 	__u64 trans_uaddr;
1831 	__u32 trans_len;
1832 };
1833 
1834 struct kvm_sev_receive_start {
1835 	__u32 handle;
1836 	__u32 policy;
1837 	__u64 pdh_uaddr;
1838 	__u32 pdh_len;
1839 	__u64 session_uaddr;
1840 	__u32 session_len;
1841 };
1842 
1843 struct kvm_sev_receive_update_data {
1844 	__u64 hdr_uaddr;
1845 	__u32 hdr_len;
1846 	__u64 guest_uaddr;
1847 	__u32 guest_len;
1848 	__u64 trans_uaddr;
1849 	__u32 trans_len;
1850 };
1851 
1852 #define KVM_DEV_ASSIGN_ENABLE_IOMMU	(1 << 0)
1853 #define KVM_DEV_ASSIGN_PCI_2_3		(1 << 1)
1854 #define KVM_DEV_ASSIGN_MASK_INTX	(1 << 2)
1855 
1856 struct kvm_assigned_pci_dev {
1857 	__u32 assigned_dev_id;
1858 	__u32 busnr;
1859 	__u32 devfn;
1860 	__u32 flags;
1861 	__u32 segnr;
1862 	union {
1863 		__u32 reserved[11];
1864 	};
1865 };
1866 
1867 #define KVM_DEV_IRQ_HOST_INTX    (1 << 0)
1868 #define KVM_DEV_IRQ_HOST_MSI     (1 << 1)
1869 #define KVM_DEV_IRQ_HOST_MSIX    (1 << 2)
1870 
1871 #define KVM_DEV_IRQ_GUEST_INTX   (1 << 8)
1872 #define KVM_DEV_IRQ_GUEST_MSI    (1 << 9)
1873 #define KVM_DEV_IRQ_GUEST_MSIX   (1 << 10)
1874 
1875 #define KVM_DEV_IRQ_HOST_MASK	 0x00ff
1876 #define KVM_DEV_IRQ_GUEST_MASK   0xff00
1877 
1878 struct kvm_assigned_irq {
1879 	__u32 assigned_dev_id;
1880 	__u32 host_irq; /* ignored (legacy field) */
1881 	__u32 guest_irq;
1882 	__u32 flags;
1883 	union {
1884 		__u32 reserved[12];
1885 	};
1886 };
1887 
1888 struct kvm_assigned_msix_nr {
1889 	__u32 assigned_dev_id;
1890 	__u16 entry_nr;
1891 	__u16 padding;
1892 };
1893 
1894 #define KVM_MAX_MSIX_PER_DEV		256
1895 struct kvm_assigned_msix_entry {
1896 	__u32 assigned_dev_id;
1897 	__u32 gsi;
1898 	__u16 entry; /* The index of entry in the MSI-X table */
1899 	__u16 padding[3];
1900 };
1901 
1902 #define KVM_X2APIC_API_USE_32BIT_IDS            (1ULL << 0)
1903 #define KVM_X2APIC_API_DISABLE_BROADCAST_QUIRK  (1ULL << 1)
1904 
1905 /* Available with KVM_CAP_ARM_USER_IRQ */
1906 
1907 /* Bits for run->s.regs.device_irq_level */
1908 #define KVM_ARM_DEV_EL1_VTIMER		(1 << 0)
1909 #define KVM_ARM_DEV_EL1_PTIMER		(1 << 1)
1910 #define KVM_ARM_DEV_PMU			(1 << 2)
1911 
1912 struct kvm_hyperv_eventfd {
1913 	__u32 conn_id;
1914 	__s32 fd;
1915 	__u32 flags;
1916 	__u32 padding[3];
1917 };
1918 
1919 #define KVM_HYPERV_CONN_ID_MASK		0x00ffffff
1920 #define KVM_HYPERV_EVENTFD_DEASSIGN	(1 << 0)
1921 
1922 #define KVM_DIRTY_LOG_MANUAL_PROTECT_ENABLE    (1 << 0)
1923 #define KVM_DIRTY_LOG_INITIALLY_SET            (1 << 1)
1924 
1925 /*
1926  * Arch needs to define the macro after implementing the dirty ring
1927  * feature.  KVM_DIRTY_LOG_PAGE_OFFSET should be defined as the
1928  * starting page offset of the dirty ring structures.
1929  */
1930 #ifndef KVM_DIRTY_LOG_PAGE_OFFSET
1931 #define KVM_DIRTY_LOG_PAGE_OFFSET 0
1932 #endif
1933 
1934 /*
1935  * KVM dirty GFN flags, defined as:
1936  *
1937  * |---------------+---------------+--------------|
1938  * | bit 1 (reset) | bit 0 (dirty) | Status       |
1939  * |---------------+---------------+--------------|
1940  * |             0 |             0 | Invalid GFN  |
1941  * |             0 |             1 | Dirty GFN    |
1942  * |             1 |             X | GFN to reset |
1943  * |---------------+---------------+--------------|
1944  *
1945  * Lifecycle of a dirty GFN goes like:
1946  *
1947  *      dirtied         harvested        reset
1948  * 00 -----------> 01 -------------> 1X -------+
1949  *  ^                                          |
1950  *  |                                          |
1951  *  +------------------------------------------+
1952  *
1953  * The userspace program is only responsible for the 01->1X state
1954  * conversion after harvesting an entry.  Also, it must not skip any
1955  * dirty bits, so that dirty bits are always harvested in sequence.
1956  */
1957 #define KVM_DIRTY_GFN_F_DIRTY           _BITUL(0)
1958 #define KVM_DIRTY_GFN_F_RESET           _BITUL(1)
1959 #define KVM_DIRTY_GFN_F_MASK            0x3
1960 
1961 /*
1962  * KVM dirty rings should be mapped at KVM_DIRTY_LOG_PAGE_OFFSET of
1963  * per-vcpu mmaped regions as an array of struct kvm_dirty_gfn.  The
1964  * size of the gfn buffer is decided by the first argument when
1965  * enabling KVM_CAP_DIRTY_LOG_RING.
1966  */
1967 struct kvm_dirty_gfn {
1968 	__u32 flags;
1969 	__u32 slot;
1970 	__u64 offset;
1971 };
1972 
1973 #define KVM_BUS_LOCK_DETECTION_OFF             (1 << 0)
1974 #define KVM_BUS_LOCK_DETECTION_EXIT            (1 << 1)
1975 
1976 /**
1977  * struct kvm_stats_header - Header of per vm/vcpu binary statistics data.
1978  * @flags: Some extra information for header, always 0 for now.
1979  * @name_size: The size in bytes of the memory which contains statistics
1980  *             name string including trailing '\0'. The memory is allocated
1981  *             at the send of statistics descriptor.
1982  * @num_desc: The number of statistics the vm or vcpu has.
1983  * @id_offset: The offset of the vm/vcpu stats' id string in the file pointed
1984  *             by vm/vcpu stats fd.
1985  * @desc_offset: The offset of the vm/vcpu stats' descriptor block in the file
1986  *               pointd by vm/vcpu stats fd.
1987  * @data_offset: The offset of the vm/vcpu stats' data block in the file
1988  *               pointed by vm/vcpu stats fd.
1989  *
1990  * This is the header userspace needs to read from stats fd before any other
1991  * readings. It is used by userspace to discover all the information about the
1992  * vm/vcpu's binary statistics.
1993  * Userspace reads this header from the start of the vm/vcpu's stats fd.
1994  */
1995 struct kvm_stats_header {
1996 	__u32 flags;
1997 	__u32 name_size;
1998 	__u32 num_desc;
1999 	__u32 id_offset;
2000 	__u32 desc_offset;
2001 	__u32 data_offset;
2002 };
2003 
2004 #define KVM_STATS_TYPE_SHIFT		0
2005 #define KVM_STATS_TYPE_MASK		(0xF << KVM_STATS_TYPE_SHIFT)
2006 #define KVM_STATS_TYPE_CUMULATIVE	(0x0 << KVM_STATS_TYPE_SHIFT)
2007 #define KVM_STATS_TYPE_INSTANT		(0x1 << KVM_STATS_TYPE_SHIFT)
2008 #define KVM_STATS_TYPE_PEAK		(0x2 << KVM_STATS_TYPE_SHIFT)
2009 #define KVM_STATS_TYPE_LINEAR_HIST	(0x3 << KVM_STATS_TYPE_SHIFT)
2010 #define KVM_STATS_TYPE_LOG_HIST		(0x4 << KVM_STATS_TYPE_SHIFT)
2011 #define KVM_STATS_TYPE_MAX		KVM_STATS_TYPE_LOG_HIST
2012 
2013 #define KVM_STATS_UNIT_SHIFT		4
2014 #define KVM_STATS_UNIT_MASK		(0xF << KVM_STATS_UNIT_SHIFT)
2015 #define KVM_STATS_UNIT_NONE		(0x0 << KVM_STATS_UNIT_SHIFT)
2016 #define KVM_STATS_UNIT_BYTES		(0x1 << KVM_STATS_UNIT_SHIFT)
2017 #define KVM_STATS_UNIT_SECONDS		(0x2 << KVM_STATS_UNIT_SHIFT)
2018 #define KVM_STATS_UNIT_CYCLES		(0x3 << KVM_STATS_UNIT_SHIFT)
2019 #define KVM_STATS_UNIT_MAX		KVM_STATS_UNIT_CYCLES
2020 
2021 #define KVM_STATS_BASE_SHIFT		8
2022 #define KVM_STATS_BASE_MASK		(0xF << KVM_STATS_BASE_SHIFT)
2023 #define KVM_STATS_BASE_POW10		(0x0 << KVM_STATS_BASE_SHIFT)
2024 #define KVM_STATS_BASE_POW2		(0x1 << KVM_STATS_BASE_SHIFT)
2025 #define KVM_STATS_BASE_MAX		KVM_STATS_BASE_POW2
2026 
2027 /**
2028  * struct kvm_stats_desc - Descriptor of a KVM statistics.
2029  * @flags: Annotations of the stats, like type, unit, etc.
2030  * @exponent: Used together with @flags to determine the unit.
2031  * @size: The number of data items for this stats.
2032  *        Every data item is of type __u64.
2033  * @offset: The offset of the stats to the start of stat structure in
2034  *          structure kvm or kvm_vcpu.
2035  * @bucket_size: A parameter value used for histogram stats. It is only used
2036  *		for linear histogram stats, specifying the size of the bucket;
2037  * @name: The name string for the stats. Its size is indicated by the
2038  *        &kvm_stats_header->name_size.
2039  */
2040 struct kvm_stats_desc {
2041 	__u32 flags;
2042 	__s16 exponent;
2043 	__u16 size;
2044 	__u32 offset;
2045 	__u32 bucket_size;
2046 	char name[];
2047 };
2048 
2049 #define KVM_GET_STATS_FD  _IO(KVMIO,  0xce)
2050 
2051 /* Available with KVM_CAP_XSAVE2 */
2052 #define KVM_GET_XSAVE2		  _IOR(KVMIO,  0xcf, struct kvm_xsave)
2053 
2054 #endif /* __LINUX_KVM_H */
2055