1 #ifndef __LINUX_KVM_H
2 #define __LINUX_KVM_H
3 
4 /*
5  * Userspace interface for /dev/kvm - kernel based virtual machine
6  *
7  * Note: you must update KVM_API_VERSION if you change this interface.
8  */
9 
10 #include <linux/types.h>
11 
12 #include <linux/ioctl.h>
13 #include <asm/kvm.h>
14 
15 #define KVM_API_VERSION 12
16 
17 /* *** Deprecated interfaces *** */
18 
19 #define KVM_TRC_SHIFT           16
20 
21 #define KVM_TRC_ENTRYEXIT       (1 << KVM_TRC_SHIFT)
22 #define KVM_TRC_HANDLER         (1 << (KVM_TRC_SHIFT + 1))
23 
24 #define KVM_TRC_VMENTRY         (KVM_TRC_ENTRYEXIT + 0x01)
25 #define KVM_TRC_VMEXIT          (KVM_TRC_ENTRYEXIT + 0x02)
26 #define KVM_TRC_PAGE_FAULT      (KVM_TRC_HANDLER + 0x01)
27 
28 #define KVM_TRC_HEAD_SIZE       12
29 #define KVM_TRC_CYCLE_SIZE      8
30 #define KVM_TRC_EXTRA_MAX       7
31 
32 #define KVM_TRC_INJ_VIRQ         (KVM_TRC_HANDLER + 0x02)
33 #define KVM_TRC_REDELIVER_EVT    (KVM_TRC_HANDLER + 0x03)
34 #define KVM_TRC_PEND_INTR        (KVM_TRC_HANDLER + 0x04)
35 #define KVM_TRC_IO_READ          (KVM_TRC_HANDLER + 0x05)
36 #define KVM_TRC_IO_WRITE         (KVM_TRC_HANDLER + 0x06)
37 #define KVM_TRC_CR_READ          (KVM_TRC_HANDLER + 0x07)
38 #define KVM_TRC_CR_WRITE         (KVM_TRC_HANDLER + 0x08)
39 #define KVM_TRC_DR_READ          (KVM_TRC_HANDLER + 0x09)
40 #define KVM_TRC_DR_WRITE         (KVM_TRC_HANDLER + 0x0A)
41 #define KVM_TRC_MSR_READ         (KVM_TRC_HANDLER + 0x0B)
42 #define KVM_TRC_MSR_WRITE        (KVM_TRC_HANDLER + 0x0C)
43 #define KVM_TRC_CPUID            (KVM_TRC_HANDLER + 0x0D)
44 #define KVM_TRC_INTR             (KVM_TRC_HANDLER + 0x0E)
45 #define KVM_TRC_NMI              (KVM_TRC_HANDLER + 0x0F)
46 #define KVM_TRC_VMMCALL          (KVM_TRC_HANDLER + 0x10)
47 #define KVM_TRC_HLT              (KVM_TRC_HANDLER + 0x11)
48 #define KVM_TRC_CLTS             (KVM_TRC_HANDLER + 0x12)
49 #define KVM_TRC_LMSW             (KVM_TRC_HANDLER + 0x13)
50 #define KVM_TRC_APIC_ACCESS      (KVM_TRC_HANDLER + 0x14)
51 #define KVM_TRC_TDP_FAULT        (KVM_TRC_HANDLER + 0x15)
52 #define KVM_TRC_GTLB_WRITE       (KVM_TRC_HANDLER + 0x16)
53 #define KVM_TRC_STLB_WRITE       (KVM_TRC_HANDLER + 0x17)
54 #define KVM_TRC_STLB_INVAL       (KVM_TRC_HANDLER + 0x18)
55 #define KVM_TRC_PPC_INSTR        (KVM_TRC_HANDLER + 0x19)
56 
57 struct kvm_user_trace_setup {
58 	__u32 buf_size;
59 	__u32 buf_nr;
60 };
61 
62 #define __KVM_DEPRECATED_MAIN_W_0x06 \
63 	_IOW(KVMIO, 0x06, struct kvm_user_trace_setup)
64 #define __KVM_DEPRECATED_MAIN_0x07 _IO(KVMIO, 0x07)
65 #define __KVM_DEPRECATED_MAIN_0x08 _IO(KVMIO, 0x08)
66 
67 #define __KVM_DEPRECATED_VM_R_0x70 _IOR(KVMIO, 0x70, struct kvm_assigned_irq)
68 
69 struct kvm_breakpoint {
70 	__u32 enabled;
71 	__u32 padding;
72 	__u64 address;
73 };
74 
75 struct kvm_debug_guest {
76 	__u32 enabled;
77 	__u32 pad;
78 	struct kvm_breakpoint breakpoints[4];
79 	__u32 singlestep;
80 };
81 
82 #define __KVM_DEPRECATED_VCPU_W_0x87 _IOW(KVMIO, 0x87, struct kvm_debug_guest)
83 
84 /* *** End of deprecated interfaces *** */
85 
86 
87 /* for KVM_CREATE_MEMORY_REGION */
88 struct kvm_memory_region {
89 	__u32 slot;
90 	__u32 flags;
91 	__u64 guest_phys_addr;
92 	__u64 memory_size; /* bytes */
93 };
94 
95 /* for KVM_SET_USER_MEMORY_REGION */
96 struct kvm_userspace_memory_region {
97 	__u32 slot;
98 	__u32 flags;
99 	__u64 guest_phys_addr;
100 	__u64 memory_size; /* bytes */
101 	__u64 userspace_addr; /* start of the userspace allocated memory */
102 };
103 
104 /*
105  * The bit 0 ~ bit 15 of kvm_memory_region::flags are visible for userspace,
106  * other bits are reserved for kvm internal use which are defined in
107  * include/linux/kvm_host.h.
108  */
109 #define KVM_MEM_LOG_DIRTY_PAGES	(1UL << 0)
110 #define KVM_MEM_READONLY	(1UL << 1)
111 
112 /* for KVM_IRQ_LINE */
113 struct kvm_irq_level {
114 	/*
115 	 * ACPI gsi notion of irq.
116 	 * For IA-64 (APIC model) IOAPIC0: irq 0-23; IOAPIC1: irq 24-47..
117 	 * For X86 (standard AT mode) PIC0/1: irq 0-15. IOAPIC0: 0-23..
118 	 * For ARM: See Documentation/virtual/kvm/api.txt
119 	 */
120 	union {
121 		__u32 irq;
122 		__s32 status;
123 	};
124 	__u32 level;
125 };
126 
127 
128 struct kvm_irqchip {
129 	__u32 chip_id;
130 	__u32 pad;
131         union {
132 		char dummy[512];  /* reserving space */
133 #ifdef __KVM_HAVE_PIT
134 		struct kvm_pic_state pic;
135 #endif
136 #ifdef __KVM_HAVE_IOAPIC
137 		struct kvm_ioapic_state ioapic;
138 #endif
139 	} chip;
140 };
141 
142 /* for KVM_CREATE_PIT2 */
143 struct kvm_pit_config {
144 	__u32 flags;
145 	__u32 pad[15];
146 };
147 
148 #define KVM_PIT_SPEAKER_DUMMY     1
149 
150 #define KVM_EXIT_UNKNOWN          0
151 #define KVM_EXIT_EXCEPTION        1
152 #define KVM_EXIT_IO               2
153 #define KVM_EXIT_HYPERCALL        3
154 #define KVM_EXIT_DEBUG            4
155 #define KVM_EXIT_HLT              5
156 #define KVM_EXIT_MMIO             6
157 #define KVM_EXIT_IRQ_WINDOW_OPEN  7
158 #define KVM_EXIT_SHUTDOWN         8
159 #define KVM_EXIT_FAIL_ENTRY       9
160 #define KVM_EXIT_INTR             10
161 #define KVM_EXIT_SET_TPR          11
162 #define KVM_EXIT_TPR_ACCESS       12
163 #define KVM_EXIT_S390_SIEIC       13
164 #define KVM_EXIT_S390_RESET       14
165 #define KVM_EXIT_DCR              15
166 #define KVM_EXIT_NMI              16
167 #define KVM_EXIT_INTERNAL_ERROR   17
168 #define KVM_EXIT_OSI              18
169 #define KVM_EXIT_PAPR_HCALL	  19
170 #define KVM_EXIT_S390_UCONTROL	  20
171 #define KVM_EXIT_WATCHDOG         21
172 #define KVM_EXIT_S390_TSCH        22
173 #define KVM_EXIT_EPR              23
174 
175 /* For KVM_EXIT_INTERNAL_ERROR */
176 /* Emulate instruction failed. */
177 #define KVM_INTERNAL_ERROR_EMULATION	1
178 /* Encounter unexpected simultaneous exceptions. */
179 #define KVM_INTERNAL_ERROR_SIMUL_EX	2
180 /* Encounter unexpected vm-exit due to delivery event. */
181 #define KVM_INTERNAL_ERROR_DELIVERY_EV	3
182 
183 /* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */
184 struct kvm_run {
185 	/* in */
186 	__u8 request_interrupt_window;
187 	__u8 padding1[7];
188 
189 	/* out */
190 	__u32 exit_reason;
191 	__u8 ready_for_interrupt_injection;
192 	__u8 if_flag;
193 	__u8 padding2[2];
194 
195 	/* in (pre_kvm_run), out (post_kvm_run) */
196 	__u64 cr8;
197 	__u64 apic_base;
198 
199 #ifdef __KVM_S390
200 	/* the processor status word for s390 */
201 	__u64 psw_mask; /* psw upper half */
202 	__u64 psw_addr; /* psw lower half */
203 #endif
204 	union {
205 		/* KVM_EXIT_UNKNOWN */
206 		struct {
207 			__u64 hardware_exit_reason;
208 		} hw;
209 		/* KVM_EXIT_FAIL_ENTRY */
210 		struct {
211 			__u64 hardware_entry_failure_reason;
212 		} fail_entry;
213 		/* KVM_EXIT_EXCEPTION */
214 		struct {
215 			__u32 exception;
216 			__u32 error_code;
217 		} ex;
218 		/* KVM_EXIT_IO */
219 		struct {
220 #define KVM_EXIT_IO_IN  0
221 #define KVM_EXIT_IO_OUT 1
222 			__u8 direction;
223 			__u8 size; /* bytes */
224 			__u16 port;
225 			__u32 count;
226 			__u64 data_offset; /* relative to kvm_run start */
227 		} io;
228 		struct {
229 			struct kvm_debug_exit_arch arch;
230 		} debug;
231 		/* KVM_EXIT_MMIO */
232 		struct {
233 			__u64 phys_addr;
234 			__u8  data[8];
235 			__u32 len;
236 			__u8  is_write;
237 		} mmio;
238 		/* KVM_EXIT_HYPERCALL */
239 		struct {
240 			__u64 nr;
241 			__u64 args[6];
242 			__u64 ret;
243 			__u32 longmode;
244 			__u32 pad;
245 		} hypercall;
246 		/* KVM_EXIT_TPR_ACCESS */
247 		struct {
248 			__u64 rip;
249 			__u32 is_write;
250 			__u32 pad;
251 		} tpr_access;
252 		/* KVM_EXIT_S390_SIEIC */
253 		struct {
254 			__u8 icptcode;
255 			__u16 ipa;
256 			__u32 ipb;
257 		} s390_sieic;
258 		/* KVM_EXIT_S390_RESET */
259 #define KVM_S390_RESET_POR       1
260 #define KVM_S390_RESET_CLEAR     2
261 #define KVM_S390_RESET_SUBSYSTEM 4
262 #define KVM_S390_RESET_CPU_INIT  8
263 #define KVM_S390_RESET_IPL       16
264 		__u64 s390_reset_flags;
265 		/* KVM_EXIT_S390_UCONTROL */
266 		struct {
267 			__u64 trans_exc_code;
268 			__u32 pgm_code;
269 		} s390_ucontrol;
270 		/* KVM_EXIT_DCR */
271 		struct {
272 			__u32 dcrn;
273 			__u32 data;
274 			__u8  is_write;
275 		} dcr;
276 		struct {
277 			__u32 suberror;
278 			/* Available with KVM_CAP_INTERNAL_ERROR_DATA: */
279 			__u32 ndata;
280 			__u64 data[16];
281 		} internal;
282 		/* KVM_EXIT_OSI */
283 		struct {
284 			__u64 gprs[32];
285 		} osi;
286 		struct {
287 			__u64 nr;
288 			__u64 ret;
289 			__u64 args[9];
290 		} papr_hcall;
291 		/* KVM_EXIT_S390_TSCH */
292 		struct {
293 			__u16 subchannel_id;
294 			__u16 subchannel_nr;
295 			__u32 io_int_parm;
296 			__u32 io_int_word;
297 			__u32 ipb;
298 			__u8 dequeued;
299 		} s390_tsch;
300 		/* KVM_EXIT_EPR */
301 		struct {
302 			__u32 epr;
303 		} epr;
304 		/* Fix the size of the union. */
305 		char padding[256];
306 	};
307 
308 	/*
309 	 * shared registers between kvm and userspace.
310 	 * kvm_valid_regs specifies the register classes set by the host
311 	 * kvm_dirty_regs specified the register classes dirtied by userspace
312 	 * struct kvm_sync_regs is architecture specific, as well as the
313 	 * bits for kvm_valid_regs and kvm_dirty_regs
314 	 */
315 	__u64 kvm_valid_regs;
316 	__u64 kvm_dirty_regs;
317 	union {
318 		struct kvm_sync_regs regs;
319 		char padding[1024];
320 	} s;
321 };
322 
323 /* for KVM_REGISTER_COALESCED_MMIO / KVM_UNREGISTER_COALESCED_MMIO */
324 
325 struct kvm_coalesced_mmio_zone {
326 	__u64 addr;
327 	__u32 size;
328 	__u32 pad;
329 };
330 
331 struct kvm_coalesced_mmio {
332 	__u64 phys_addr;
333 	__u32 len;
334 	__u32 pad;
335 	__u8  data[8];
336 };
337 
338 struct kvm_coalesced_mmio_ring {
339 	__u32 first, last;
340 	struct kvm_coalesced_mmio coalesced_mmio[0];
341 };
342 
343 #define KVM_COALESCED_MMIO_MAX \
344 	((PAGE_SIZE - sizeof(struct kvm_coalesced_mmio_ring)) / \
345 	 sizeof(struct kvm_coalesced_mmio))
346 
347 /* for KVM_TRANSLATE */
348 struct kvm_translation {
349 	/* in */
350 	__u64 linear_address;
351 
352 	/* out */
353 	__u64 physical_address;
354 	__u8  valid;
355 	__u8  writeable;
356 	__u8  usermode;
357 	__u8  pad[5];
358 };
359 
360 /* for KVM_INTERRUPT */
361 struct kvm_interrupt {
362 	/* in */
363 	__u32 irq;
364 };
365 
366 /* for KVM_GET_DIRTY_LOG */
367 struct kvm_dirty_log {
368 	__u32 slot;
369 	__u32 padding1;
370 	union {
371 		void *dirty_bitmap; /* one bit per page */
372 		__u64 padding2;
373 	};
374 };
375 
376 /* for KVM_SET_SIGNAL_MASK */
377 struct kvm_signal_mask {
378 	__u32 len;
379 	__u8  sigset[0];
380 };
381 
382 /* for KVM_TPR_ACCESS_REPORTING */
383 struct kvm_tpr_access_ctl {
384 	__u32 enabled;
385 	__u32 flags;
386 	__u32 reserved[8];
387 };
388 
389 /* for KVM_SET_VAPIC_ADDR */
390 struct kvm_vapic_addr {
391 	__u64 vapic_addr;
392 };
393 
394 /* for KVM_SET_MPSTATE */
395 
396 #define KVM_MP_STATE_RUNNABLE          0
397 #define KVM_MP_STATE_UNINITIALIZED     1
398 #define KVM_MP_STATE_INIT_RECEIVED     2
399 #define KVM_MP_STATE_HALTED            3
400 #define KVM_MP_STATE_SIPI_RECEIVED     4
401 
402 struct kvm_mp_state {
403 	__u32 mp_state;
404 };
405 
406 struct kvm_s390_psw {
407 	__u64 mask;
408 	__u64 addr;
409 };
410 
411 /* valid values for type in kvm_s390_interrupt */
412 #define KVM_S390_SIGP_STOP		0xfffe0000u
413 #define KVM_S390_PROGRAM_INT		0xfffe0001u
414 #define KVM_S390_SIGP_SET_PREFIX	0xfffe0002u
415 #define KVM_S390_RESTART		0xfffe0003u
416 #define KVM_S390_MCHK			0xfffe1000u
417 #define KVM_S390_INT_VIRTIO		0xffff2603u
418 #define KVM_S390_INT_SERVICE		0xffff2401u
419 #define KVM_S390_INT_EMERGENCY		0xffff1201u
420 #define KVM_S390_INT_EXTERNAL_CALL	0xffff1202u
421 /* Anything below 0xfffe0000u is taken by INT_IO */
422 #define KVM_S390_INT_IO(ai,cssid,ssid,schid)   \
423 	(((schid)) |			       \
424 	 ((ssid) << 16) |		       \
425 	 ((cssid) << 18) |		       \
426 	 ((ai) << 26))
427 #define KVM_S390_INT_IO_MIN		0x00000000u
428 #define KVM_S390_INT_IO_MAX		0xfffdffffu
429 
430 
431 struct kvm_s390_interrupt {
432 	__u32 type;
433 	__u32 parm;
434 	__u64 parm64;
435 };
436 
437 /* for KVM_SET_GUEST_DEBUG */
438 
439 #define KVM_GUESTDBG_ENABLE		0x00000001
440 #define KVM_GUESTDBG_SINGLESTEP		0x00000002
441 
442 struct kvm_guest_debug {
443 	__u32 control;
444 	__u32 pad;
445 	struct kvm_guest_debug_arch arch;
446 };
447 
448 enum {
449 	kvm_ioeventfd_flag_nr_datamatch,
450 	kvm_ioeventfd_flag_nr_pio,
451 	kvm_ioeventfd_flag_nr_deassign,
452 	kvm_ioeventfd_flag_nr_max,
453 };
454 
455 #define KVM_IOEVENTFD_FLAG_DATAMATCH (1 << kvm_ioeventfd_flag_nr_datamatch)
456 #define KVM_IOEVENTFD_FLAG_PIO       (1 << kvm_ioeventfd_flag_nr_pio)
457 #define KVM_IOEVENTFD_FLAG_DEASSIGN  (1 << kvm_ioeventfd_flag_nr_deassign)
458 
459 #define KVM_IOEVENTFD_VALID_FLAG_MASK  ((1 << kvm_ioeventfd_flag_nr_max) - 1)
460 
461 struct kvm_ioeventfd {
462 	__u64 datamatch;
463 	__u64 addr;        /* legal pio/mmio address */
464 	__u32 len;         /* 1, 2, 4, or 8 bytes    */
465 	__s32 fd;
466 	__u32 flags;
467 	__u8  pad[36];
468 };
469 
470 /* for KVM_ENABLE_CAP */
471 struct kvm_enable_cap {
472 	/* in */
473 	__u32 cap;
474 	__u32 flags;
475 	__u64 args[4];
476 	__u8  pad[64];
477 };
478 
479 /* for KVM_PPC_GET_PVINFO */
480 struct kvm_ppc_pvinfo {
481 	/* out */
482 	__u32 flags;
483 	__u32 hcall[4];
484 	__u8  pad[108];
485 };
486 
487 /* for KVM_PPC_GET_SMMU_INFO */
488 #define KVM_PPC_PAGE_SIZES_MAX_SZ	8
489 
490 struct kvm_ppc_one_page_size {
491 	__u32 page_shift;	/* Page shift (or 0) */
492 	__u32 pte_enc;		/* Encoding in the HPTE (>>12) */
493 };
494 
495 struct kvm_ppc_one_seg_page_size {
496 	__u32 page_shift;	/* Base page shift of segment (or 0) */
497 	__u32 slb_enc;		/* SLB encoding for BookS */
498 	struct kvm_ppc_one_page_size enc[KVM_PPC_PAGE_SIZES_MAX_SZ];
499 };
500 
501 #define KVM_PPC_PAGE_SIZES_REAL		0x00000001
502 #define KVM_PPC_1T_SEGMENTS		0x00000002
503 
504 struct kvm_ppc_smmu_info {
505 	__u64 flags;
506 	__u32 slb_size;
507 	__u32 pad;
508 	struct kvm_ppc_one_seg_page_size sps[KVM_PPC_PAGE_SIZES_MAX_SZ];
509 };
510 
511 #define KVM_PPC_PVINFO_FLAGS_EV_IDLE   (1<<0)
512 
513 #define KVMIO 0xAE
514 
515 /* machine type bits, to be used as argument to KVM_CREATE_VM */
516 #define KVM_VM_S390_UCONTROL	1
517 
518 #define KVM_S390_SIE_PAGE_OFFSET 1
519 
520 /*
521  * ioctls for /dev/kvm fds:
522  */
523 #define KVM_GET_API_VERSION       _IO(KVMIO,   0x00)
524 #define KVM_CREATE_VM             _IO(KVMIO,   0x01) /* returns a VM fd */
525 #define KVM_GET_MSR_INDEX_LIST    _IOWR(KVMIO, 0x02, struct kvm_msr_list)
526 
527 #define KVM_S390_ENABLE_SIE       _IO(KVMIO,   0x06)
528 /*
529  * Check if a kvm extension is available.  Argument is extension number,
530  * return is 1 (yes) or 0 (no, sorry).
531  */
532 #define KVM_CHECK_EXTENSION       _IO(KVMIO,   0x03)
533 /*
534  * Get size for mmap(vcpu_fd)
535  */
536 #define KVM_GET_VCPU_MMAP_SIZE    _IO(KVMIO,   0x04) /* in bytes */
537 #define KVM_GET_SUPPORTED_CPUID   _IOWR(KVMIO, 0x05, struct kvm_cpuid2)
538 #define KVM_TRACE_ENABLE          __KVM_DEPRECATED_MAIN_W_0x06
539 #define KVM_TRACE_PAUSE           __KVM_DEPRECATED_MAIN_0x07
540 #define KVM_TRACE_DISABLE         __KVM_DEPRECATED_MAIN_0x08
541 
542 /*
543  * Extension capability list.
544  */
545 #define KVM_CAP_IRQCHIP	  0
546 #define KVM_CAP_HLT	  1
547 #define KVM_CAP_MMU_SHADOW_CACHE_CONTROL 2
548 #define KVM_CAP_USER_MEMORY 3
549 #define KVM_CAP_SET_TSS_ADDR 4
550 #define KVM_CAP_VAPIC 6
551 #define KVM_CAP_EXT_CPUID 7
552 #define KVM_CAP_CLOCKSOURCE 8
553 #define KVM_CAP_NR_VCPUS 9       /* returns recommended max vcpus per vm */
554 #define KVM_CAP_NR_MEMSLOTS 10   /* returns max memory slots per vm */
555 #define KVM_CAP_PIT 11
556 #define KVM_CAP_NOP_IO_DELAY 12
557 #define KVM_CAP_PV_MMU 13
558 #define KVM_CAP_MP_STATE 14
559 #define KVM_CAP_COALESCED_MMIO 15
560 #define KVM_CAP_SYNC_MMU 16  /* Changes to host mmap are reflected in guest */
561 #ifdef __KVM_HAVE_DEVICE_ASSIGNMENT
562 #define KVM_CAP_DEVICE_ASSIGNMENT 17
563 #endif
564 #define KVM_CAP_IOMMU 18
565 #ifdef __KVM_HAVE_MSI
566 #define KVM_CAP_DEVICE_MSI 20
567 #endif
568 /* Bug in KVM_SET_USER_MEMORY_REGION fixed: */
569 #define KVM_CAP_DESTROY_MEMORY_REGION_WORKS 21
570 #ifdef __KVM_HAVE_USER_NMI
571 #define KVM_CAP_USER_NMI 22
572 #endif
573 #ifdef __KVM_HAVE_GUEST_DEBUG
574 #define KVM_CAP_SET_GUEST_DEBUG 23
575 #endif
576 #ifdef __KVM_HAVE_PIT
577 #define KVM_CAP_REINJECT_CONTROL 24
578 #endif
579 #ifdef __KVM_HAVE_IOAPIC
580 #define KVM_CAP_IRQ_ROUTING 25
581 #endif
582 #define KVM_CAP_IRQ_INJECT_STATUS 26
583 #ifdef __KVM_HAVE_DEVICE_ASSIGNMENT
584 #define KVM_CAP_DEVICE_DEASSIGNMENT 27
585 #endif
586 #ifdef __KVM_HAVE_MSIX
587 #define KVM_CAP_DEVICE_MSIX 28
588 #endif
589 #define KVM_CAP_ASSIGN_DEV_IRQ 29
590 /* Another bug in KVM_SET_USER_MEMORY_REGION fixed: */
591 #define KVM_CAP_JOIN_MEMORY_REGIONS_WORKS 30
592 #ifdef __KVM_HAVE_MCE
593 #define KVM_CAP_MCE 31
594 #endif
595 #define KVM_CAP_IRQFD 32
596 #ifdef __KVM_HAVE_PIT
597 #define KVM_CAP_PIT2 33
598 #endif
599 #define KVM_CAP_SET_BOOT_CPU_ID 34
600 #ifdef __KVM_HAVE_PIT_STATE2
601 #define KVM_CAP_PIT_STATE2 35
602 #endif
603 #define KVM_CAP_IOEVENTFD 36
604 #define KVM_CAP_SET_IDENTITY_MAP_ADDR 37
605 #ifdef __KVM_HAVE_XEN_HVM
606 #define KVM_CAP_XEN_HVM 38
607 #endif
608 #define KVM_CAP_ADJUST_CLOCK 39
609 #define KVM_CAP_INTERNAL_ERROR_DATA 40
610 #ifdef __KVM_HAVE_VCPU_EVENTS
611 #define KVM_CAP_VCPU_EVENTS 41
612 #endif
613 #define KVM_CAP_S390_PSW 42
614 #define KVM_CAP_PPC_SEGSTATE 43
615 #define KVM_CAP_HYPERV 44
616 #define KVM_CAP_HYPERV_VAPIC 45
617 #define KVM_CAP_HYPERV_SPIN 46
618 #define KVM_CAP_PCI_SEGMENT 47
619 #define KVM_CAP_PPC_PAIRED_SINGLES 48
620 #define KVM_CAP_INTR_SHADOW 49
621 #ifdef __KVM_HAVE_DEBUGREGS
622 #define KVM_CAP_DEBUGREGS 50
623 #endif
624 #define KVM_CAP_X86_ROBUST_SINGLESTEP 51
625 #define KVM_CAP_PPC_OSI 52
626 #define KVM_CAP_PPC_UNSET_IRQ 53
627 #define KVM_CAP_ENABLE_CAP 54
628 #ifdef __KVM_HAVE_XSAVE
629 #define KVM_CAP_XSAVE 55
630 #endif
631 #ifdef __KVM_HAVE_XCRS
632 #define KVM_CAP_XCRS 56
633 #endif
634 #define KVM_CAP_PPC_GET_PVINFO 57
635 #define KVM_CAP_PPC_IRQ_LEVEL 58
636 #define KVM_CAP_ASYNC_PF 59
637 #define KVM_CAP_TSC_CONTROL 60
638 #define KVM_CAP_GET_TSC_KHZ 61
639 #define KVM_CAP_PPC_BOOKE_SREGS 62
640 #define KVM_CAP_SPAPR_TCE 63
641 #define KVM_CAP_PPC_SMT 64
642 #define KVM_CAP_PPC_RMA	65
643 #define KVM_CAP_MAX_VCPUS 66       /* returns max vcpus per vm */
644 #define KVM_CAP_PPC_HIOR 67
645 #define KVM_CAP_PPC_PAPR 68
646 #define KVM_CAP_SW_TLB 69
647 #define KVM_CAP_ONE_REG 70
648 #define KVM_CAP_S390_GMAP 71
649 #define KVM_CAP_TSC_DEADLINE_TIMER 72
650 #define KVM_CAP_S390_UCONTROL 73
651 #define KVM_CAP_SYNC_REGS 74
652 #define KVM_CAP_PCI_2_3 75
653 #define KVM_CAP_KVMCLOCK_CTRL 76
654 #define KVM_CAP_SIGNAL_MSI 77
655 #define KVM_CAP_PPC_GET_SMMU_INFO 78
656 #define KVM_CAP_S390_COW 79
657 #define KVM_CAP_PPC_ALLOC_HTAB 80
658 #ifdef __KVM_HAVE_READONLY_MEM
659 #define KVM_CAP_READONLY_MEM 81
660 #endif
661 #define KVM_CAP_IRQFD_RESAMPLE 82
662 #define KVM_CAP_PPC_BOOKE_WATCHDOG 83
663 #define KVM_CAP_PPC_HTAB_FD 84
664 #define KVM_CAP_S390_CSS_SUPPORT 85
665 #define KVM_CAP_PPC_EPR 86
666 #define KVM_CAP_ARM_PSCI 87
667 #define KVM_CAP_ARM_SET_DEVICE_ADDR 88
668 
669 #ifdef KVM_CAP_IRQ_ROUTING
670 
671 struct kvm_irq_routing_irqchip {
672 	__u32 irqchip;
673 	__u32 pin;
674 };
675 
676 struct kvm_irq_routing_msi {
677 	__u32 address_lo;
678 	__u32 address_hi;
679 	__u32 data;
680 	__u32 pad;
681 };
682 
683 /* gsi routing entry types */
684 #define KVM_IRQ_ROUTING_IRQCHIP 1
685 #define KVM_IRQ_ROUTING_MSI 2
686 
687 struct kvm_irq_routing_entry {
688 	__u32 gsi;
689 	__u32 type;
690 	__u32 flags;
691 	__u32 pad;
692 	union {
693 		struct kvm_irq_routing_irqchip irqchip;
694 		struct kvm_irq_routing_msi msi;
695 		__u32 pad[8];
696 	} u;
697 };
698 
699 struct kvm_irq_routing {
700 	__u32 nr;
701 	__u32 flags;
702 	struct kvm_irq_routing_entry entries[0];
703 };
704 
705 #endif
706 
707 #ifdef KVM_CAP_MCE
708 /* x86 MCE */
709 struct kvm_x86_mce {
710 	__u64 status;
711 	__u64 addr;
712 	__u64 misc;
713 	__u64 mcg_status;
714 	__u8 bank;
715 	__u8 pad1[7];
716 	__u64 pad2[3];
717 };
718 #endif
719 
720 #ifdef KVM_CAP_XEN_HVM
721 struct kvm_xen_hvm_config {
722 	__u32 flags;
723 	__u32 msr;
724 	__u64 blob_addr_32;
725 	__u64 blob_addr_64;
726 	__u8 blob_size_32;
727 	__u8 blob_size_64;
728 	__u8 pad2[30];
729 };
730 #endif
731 
732 #define KVM_IRQFD_FLAG_DEASSIGN (1 << 0)
733 /*
734  * Available with KVM_CAP_IRQFD_RESAMPLE
735  *
736  * KVM_IRQFD_FLAG_RESAMPLE indicates resamplefd is valid and specifies
737  * the irqfd to operate in resampling mode for level triggered interrupt
738  * emlation.  See Documentation/virtual/kvm/api.txt.
739  */
740 #define KVM_IRQFD_FLAG_RESAMPLE (1 << 1)
741 
742 struct kvm_irqfd {
743 	__u32 fd;
744 	__u32 gsi;
745 	__u32 flags;
746 	__u32 resamplefd;
747 	__u8  pad[16];
748 };
749 
750 struct kvm_clock_data {
751 	__u64 clock;
752 	__u32 flags;
753 	__u32 pad[9];
754 };
755 
756 #define KVM_MMU_FSL_BOOKE_NOHV		0
757 #define KVM_MMU_FSL_BOOKE_HV		1
758 
759 struct kvm_config_tlb {
760 	__u64 params;
761 	__u64 array;
762 	__u32 mmu_type;
763 	__u32 array_len;
764 };
765 
766 struct kvm_dirty_tlb {
767 	__u64 bitmap;
768 	__u32 num_dirty;
769 };
770 
771 /* Available with KVM_CAP_ONE_REG */
772 
773 #define KVM_REG_ARCH_MASK	0xff00000000000000ULL
774 #define KVM_REG_GENERIC		0x0000000000000000ULL
775 
776 /*
777  * Architecture specific registers are to be defined in arch headers and
778  * ORed with the arch identifier.
779  */
780 #define KVM_REG_PPC		0x1000000000000000ULL
781 #define KVM_REG_X86		0x2000000000000000ULL
782 #define KVM_REG_IA64		0x3000000000000000ULL
783 #define KVM_REG_ARM		0x4000000000000000ULL
784 #define KVM_REG_S390		0x5000000000000000ULL
785 
786 #define KVM_REG_SIZE_SHIFT	52
787 #define KVM_REG_SIZE_MASK	0x00f0000000000000ULL
788 #define KVM_REG_SIZE_U8		0x0000000000000000ULL
789 #define KVM_REG_SIZE_U16	0x0010000000000000ULL
790 #define KVM_REG_SIZE_U32	0x0020000000000000ULL
791 #define KVM_REG_SIZE_U64	0x0030000000000000ULL
792 #define KVM_REG_SIZE_U128	0x0040000000000000ULL
793 #define KVM_REG_SIZE_U256	0x0050000000000000ULL
794 #define KVM_REG_SIZE_U512	0x0060000000000000ULL
795 #define KVM_REG_SIZE_U1024	0x0070000000000000ULL
796 
797 struct kvm_reg_list {
798 	__u64 n; /* number of regs */
799 	__u64 reg[0];
800 };
801 
802 struct kvm_one_reg {
803 	__u64 id;
804 	__u64 addr;
805 };
806 
807 struct kvm_msi {
808 	__u32 address_lo;
809 	__u32 address_hi;
810 	__u32 data;
811 	__u32 flags;
812 	__u8  pad[16];
813 };
814 
815 struct kvm_arm_device_addr {
816 	__u64 id;
817 	__u64 addr;
818 };
819 
820 /*
821  * ioctls for VM fds
822  */
823 #define KVM_SET_MEMORY_REGION     _IOW(KVMIO,  0x40, struct kvm_memory_region)
824 /*
825  * KVM_CREATE_VCPU receives as a parameter the vcpu slot, and returns
826  * a vcpu fd.
827  */
828 #define KVM_CREATE_VCPU           _IO(KVMIO,   0x41)
829 #define KVM_GET_DIRTY_LOG         _IOW(KVMIO,  0x42, struct kvm_dirty_log)
830 /* KVM_SET_MEMORY_ALIAS is obsolete: */
831 #define KVM_SET_MEMORY_ALIAS      _IOW(KVMIO,  0x43, struct kvm_memory_alias)
832 #define KVM_SET_NR_MMU_PAGES      _IO(KVMIO,   0x44)
833 #define KVM_GET_NR_MMU_PAGES      _IO(KVMIO,   0x45)
834 #define KVM_SET_USER_MEMORY_REGION _IOW(KVMIO, 0x46, \
835 					struct kvm_userspace_memory_region)
836 #define KVM_SET_TSS_ADDR          _IO(KVMIO,   0x47)
837 #define KVM_SET_IDENTITY_MAP_ADDR _IOW(KVMIO,  0x48, __u64)
838 
839 /* enable ucontrol for s390 */
840 struct kvm_s390_ucas_mapping {
841 	__u64 user_addr;
842 	__u64 vcpu_addr;
843 	__u64 length;
844 };
845 #define KVM_S390_UCAS_MAP        _IOW(KVMIO, 0x50, struct kvm_s390_ucas_mapping)
846 #define KVM_S390_UCAS_UNMAP      _IOW(KVMIO, 0x51, struct kvm_s390_ucas_mapping)
847 #define KVM_S390_VCPU_FAULT	 _IOW(KVMIO, 0x52, unsigned long)
848 
849 /* Device model IOC */
850 #define KVM_CREATE_IRQCHIP        _IO(KVMIO,   0x60)
851 #define KVM_IRQ_LINE              _IOW(KVMIO,  0x61, struct kvm_irq_level)
852 #define KVM_GET_IRQCHIP           _IOWR(KVMIO, 0x62, struct kvm_irqchip)
853 #define KVM_SET_IRQCHIP           _IOR(KVMIO,  0x63, struct kvm_irqchip)
854 #define KVM_CREATE_PIT            _IO(KVMIO,   0x64)
855 #define KVM_GET_PIT               _IOWR(KVMIO, 0x65, struct kvm_pit_state)
856 #define KVM_SET_PIT               _IOR(KVMIO,  0x66, struct kvm_pit_state)
857 #define KVM_IRQ_LINE_STATUS       _IOWR(KVMIO, 0x67, struct kvm_irq_level)
858 #define KVM_REGISTER_COALESCED_MMIO \
859 			_IOW(KVMIO,  0x67, struct kvm_coalesced_mmio_zone)
860 #define KVM_UNREGISTER_COALESCED_MMIO \
861 			_IOW(KVMIO,  0x68, struct kvm_coalesced_mmio_zone)
862 #define KVM_ASSIGN_PCI_DEVICE     _IOR(KVMIO,  0x69, \
863 				       struct kvm_assigned_pci_dev)
864 #define KVM_SET_GSI_ROUTING       _IOW(KVMIO,  0x6a, struct kvm_irq_routing)
865 /* deprecated, replaced by KVM_ASSIGN_DEV_IRQ */
866 #define KVM_ASSIGN_IRQ            __KVM_DEPRECATED_VM_R_0x70
867 #define KVM_ASSIGN_DEV_IRQ        _IOW(KVMIO,  0x70, struct kvm_assigned_irq)
868 #define KVM_REINJECT_CONTROL      _IO(KVMIO,   0x71)
869 #define KVM_DEASSIGN_PCI_DEVICE   _IOW(KVMIO,  0x72, \
870 				       struct kvm_assigned_pci_dev)
871 #define KVM_ASSIGN_SET_MSIX_NR    _IOW(KVMIO,  0x73, \
872 				       struct kvm_assigned_msix_nr)
873 #define KVM_ASSIGN_SET_MSIX_ENTRY _IOW(KVMIO,  0x74, \
874 				       struct kvm_assigned_msix_entry)
875 #define KVM_DEASSIGN_DEV_IRQ      _IOW(KVMIO,  0x75, struct kvm_assigned_irq)
876 #define KVM_IRQFD                 _IOW(KVMIO,  0x76, struct kvm_irqfd)
877 #define KVM_CREATE_PIT2		  _IOW(KVMIO,  0x77, struct kvm_pit_config)
878 #define KVM_SET_BOOT_CPU_ID       _IO(KVMIO,   0x78)
879 #define KVM_IOEVENTFD             _IOW(KVMIO,  0x79, struct kvm_ioeventfd)
880 #define KVM_XEN_HVM_CONFIG        _IOW(KVMIO,  0x7a, struct kvm_xen_hvm_config)
881 #define KVM_SET_CLOCK             _IOW(KVMIO,  0x7b, struct kvm_clock_data)
882 #define KVM_GET_CLOCK             _IOR(KVMIO,  0x7c, struct kvm_clock_data)
883 /* Available with KVM_CAP_PIT_STATE2 */
884 #define KVM_GET_PIT2              _IOR(KVMIO,  0x9f, struct kvm_pit_state2)
885 #define KVM_SET_PIT2              _IOW(KVMIO,  0xa0, struct kvm_pit_state2)
886 /* Available with KVM_CAP_PPC_GET_PVINFO */
887 #define KVM_PPC_GET_PVINFO	  _IOW(KVMIO,  0xa1, struct kvm_ppc_pvinfo)
888 /* Available with KVM_CAP_TSC_CONTROL */
889 #define KVM_SET_TSC_KHZ           _IO(KVMIO,  0xa2)
890 #define KVM_GET_TSC_KHZ           _IO(KVMIO,  0xa3)
891 /* Available with KVM_CAP_PCI_2_3 */
892 #define KVM_ASSIGN_SET_INTX_MASK  _IOW(KVMIO,  0xa4, \
893 				       struct kvm_assigned_pci_dev)
894 /* Available with KVM_CAP_SIGNAL_MSI */
895 #define KVM_SIGNAL_MSI            _IOW(KVMIO,  0xa5, struct kvm_msi)
896 /* Available with KVM_CAP_PPC_GET_SMMU_INFO */
897 #define KVM_PPC_GET_SMMU_INFO	  _IOR(KVMIO,  0xa6, struct kvm_ppc_smmu_info)
898 /* Available with KVM_CAP_PPC_ALLOC_HTAB */
899 #define KVM_PPC_ALLOCATE_HTAB	  _IOWR(KVMIO, 0xa7, __u32)
900 #define KVM_CREATE_SPAPR_TCE	  _IOW(KVMIO,  0xa8, struct kvm_create_spapr_tce)
901 /* Available with KVM_CAP_RMA */
902 #define KVM_ALLOCATE_RMA	  _IOR(KVMIO,  0xa9, struct kvm_allocate_rma)
903 /* Available with KVM_CAP_PPC_HTAB_FD */
904 #define KVM_PPC_GET_HTAB_FD	  _IOW(KVMIO,  0xaa, struct kvm_get_htab_fd)
905 /* Available with KVM_CAP_ARM_SET_DEVICE_ADDR */
906 #define KVM_ARM_SET_DEVICE_ADDR	  _IOW(KVMIO,  0xab, struct kvm_arm_device_addr)
907 
908 /*
909  * ioctls for vcpu fds
910  */
911 #define KVM_RUN                   _IO(KVMIO,   0x80)
912 #define KVM_GET_REGS              _IOR(KVMIO,  0x81, struct kvm_regs)
913 #define KVM_SET_REGS              _IOW(KVMIO,  0x82, struct kvm_regs)
914 #define KVM_GET_SREGS             _IOR(KVMIO,  0x83, struct kvm_sregs)
915 #define KVM_SET_SREGS             _IOW(KVMIO,  0x84, struct kvm_sregs)
916 #define KVM_TRANSLATE             _IOWR(KVMIO, 0x85, struct kvm_translation)
917 #define KVM_INTERRUPT             _IOW(KVMIO,  0x86, struct kvm_interrupt)
918 /* KVM_DEBUG_GUEST is no longer supported, use KVM_SET_GUEST_DEBUG instead */
919 #define KVM_DEBUG_GUEST           __KVM_DEPRECATED_VCPU_W_0x87
920 #define KVM_GET_MSRS              _IOWR(KVMIO, 0x88, struct kvm_msrs)
921 #define KVM_SET_MSRS              _IOW(KVMIO,  0x89, struct kvm_msrs)
922 #define KVM_SET_CPUID             _IOW(KVMIO,  0x8a, struct kvm_cpuid)
923 #define KVM_SET_SIGNAL_MASK       _IOW(KVMIO,  0x8b, struct kvm_signal_mask)
924 #define KVM_GET_FPU               _IOR(KVMIO,  0x8c, struct kvm_fpu)
925 #define KVM_SET_FPU               _IOW(KVMIO,  0x8d, struct kvm_fpu)
926 #define KVM_GET_LAPIC             _IOR(KVMIO,  0x8e, struct kvm_lapic_state)
927 #define KVM_SET_LAPIC             _IOW(KVMIO,  0x8f, struct kvm_lapic_state)
928 #define KVM_SET_CPUID2            _IOW(KVMIO,  0x90, struct kvm_cpuid2)
929 #define KVM_GET_CPUID2            _IOWR(KVMIO, 0x91, struct kvm_cpuid2)
930 /* Available with KVM_CAP_VAPIC */
931 #define KVM_TPR_ACCESS_REPORTING  _IOWR(KVMIO, 0x92, struct kvm_tpr_access_ctl)
932 /* Available with KVM_CAP_VAPIC */
933 #define KVM_SET_VAPIC_ADDR        _IOW(KVMIO,  0x93, struct kvm_vapic_addr)
934 /* valid for virtual machine (for floating interrupt)_and_ vcpu */
935 #define KVM_S390_INTERRUPT        _IOW(KVMIO,  0x94, struct kvm_s390_interrupt)
936 /* store status for s390 */
937 #define KVM_S390_STORE_STATUS_NOADDR    (-1ul)
938 #define KVM_S390_STORE_STATUS_PREFIXED  (-2ul)
939 #define KVM_S390_STORE_STATUS	  _IOW(KVMIO,  0x95, unsigned long)
940 /* initial ipl psw for s390 */
941 #define KVM_S390_SET_INITIAL_PSW  _IOW(KVMIO,  0x96, struct kvm_s390_psw)
942 /* initial reset for s390 */
943 #define KVM_S390_INITIAL_RESET    _IO(KVMIO,   0x97)
944 #define KVM_GET_MP_STATE          _IOR(KVMIO,  0x98, struct kvm_mp_state)
945 #define KVM_SET_MP_STATE          _IOW(KVMIO,  0x99, struct kvm_mp_state)
946 /* Available with KVM_CAP_NMI */
947 #define KVM_NMI                   _IO(KVMIO,   0x9a)
948 /* Available with KVM_CAP_SET_GUEST_DEBUG */
949 #define KVM_SET_GUEST_DEBUG       _IOW(KVMIO,  0x9b, struct kvm_guest_debug)
950 /* MCE for x86 */
951 #define KVM_X86_SETUP_MCE         _IOW(KVMIO,  0x9c, __u64)
952 #define KVM_X86_GET_MCE_CAP_SUPPORTED _IOR(KVMIO,  0x9d, __u64)
953 #define KVM_X86_SET_MCE           _IOW(KVMIO,  0x9e, struct kvm_x86_mce)
954 /* IA64 stack access */
955 #define KVM_IA64_VCPU_GET_STACK   _IOR(KVMIO,  0x9a, void *)
956 #define KVM_IA64_VCPU_SET_STACK   _IOW(KVMIO,  0x9b, void *)
957 /* Available with KVM_CAP_VCPU_EVENTS */
958 #define KVM_GET_VCPU_EVENTS       _IOR(KVMIO,  0x9f, struct kvm_vcpu_events)
959 #define KVM_SET_VCPU_EVENTS       _IOW(KVMIO,  0xa0, struct kvm_vcpu_events)
960 /* Available with KVM_CAP_DEBUGREGS */
961 #define KVM_GET_DEBUGREGS         _IOR(KVMIO,  0xa1, struct kvm_debugregs)
962 #define KVM_SET_DEBUGREGS         _IOW(KVMIO,  0xa2, struct kvm_debugregs)
963 #define KVM_ENABLE_CAP            _IOW(KVMIO,  0xa3, struct kvm_enable_cap)
964 /* Available with KVM_CAP_XSAVE */
965 #define KVM_GET_XSAVE		  _IOR(KVMIO,  0xa4, struct kvm_xsave)
966 #define KVM_SET_XSAVE		  _IOW(KVMIO,  0xa5, struct kvm_xsave)
967 /* Available with KVM_CAP_XCRS */
968 #define KVM_GET_XCRS		  _IOR(KVMIO,  0xa6, struct kvm_xcrs)
969 #define KVM_SET_XCRS		  _IOW(KVMIO,  0xa7, struct kvm_xcrs)
970 /* Available with KVM_CAP_SW_TLB */
971 #define KVM_DIRTY_TLB		  _IOW(KVMIO,  0xaa, struct kvm_dirty_tlb)
972 /* Available with KVM_CAP_ONE_REG */
973 #define KVM_GET_ONE_REG		  _IOW(KVMIO,  0xab, struct kvm_one_reg)
974 #define KVM_SET_ONE_REG		  _IOW(KVMIO,  0xac, struct kvm_one_reg)
975 /* VM is being stopped by host */
976 #define KVM_KVMCLOCK_CTRL	  _IO(KVMIO,   0xad)
977 #define KVM_ARM_VCPU_INIT	  _IOW(KVMIO,  0xae, struct kvm_vcpu_init)
978 #define KVM_GET_REG_LIST	  _IOWR(KVMIO, 0xb0, struct kvm_reg_list)
979 
980 #define KVM_DEV_ASSIGN_ENABLE_IOMMU	(1 << 0)
981 #define KVM_DEV_ASSIGN_PCI_2_3		(1 << 1)
982 #define KVM_DEV_ASSIGN_MASK_INTX	(1 << 2)
983 
984 struct kvm_assigned_pci_dev {
985 	__u32 assigned_dev_id;
986 	__u32 busnr;
987 	__u32 devfn;
988 	__u32 flags;
989 	__u32 segnr;
990 	union {
991 		__u32 reserved[11];
992 	};
993 };
994 
995 #define KVM_DEV_IRQ_HOST_INTX    (1 << 0)
996 #define KVM_DEV_IRQ_HOST_MSI     (1 << 1)
997 #define KVM_DEV_IRQ_HOST_MSIX    (1 << 2)
998 
999 #define KVM_DEV_IRQ_GUEST_INTX   (1 << 8)
1000 #define KVM_DEV_IRQ_GUEST_MSI    (1 << 9)
1001 #define KVM_DEV_IRQ_GUEST_MSIX   (1 << 10)
1002 
1003 #define KVM_DEV_IRQ_HOST_MASK	 0x00ff
1004 #define KVM_DEV_IRQ_GUEST_MASK   0xff00
1005 
1006 struct kvm_assigned_irq {
1007 	__u32 assigned_dev_id;
1008 	__u32 host_irq; /* ignored (legacy field) */
1009 	__u32 guest_irq;
1010 	__u32 flags;
1011 	union {
1012 		__u32 reserved[12];
1013 	};
1014 };
1015 
1016 struct kvm_assigned_msix_nr {
1017 	__u32 assigned_dev_id;
1018 	__u16 entry_nr;
1019 	__u16 padding;
1020 };
1021 
1022 #define KVM_MAX_MSIX_PER_DEV		256
1023 struct kvm_assigned_msix_entry {
1024 	__u32 assigned_dev_id;
1025 	__u32 gsi;
1026 	__u16 entry; /* The index of entry in the MSI-X table */
1027 	__u16 padding[3];
1028 };
1029 
1030 #endif /* __LINUX_KVM_H */
1031