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6aa8b732 AK |
1 | #ifndef __LINUX_KVM_H |
2 | #define __LINUX_KVM_H | |
3 | ||
4 | /* | |
5 | * Userspace interface for /dev/kvm - kernel based virtual machine | |
6 | * | |
dea8caee | 7 | * Note: you must update KVM_API_VERSION if you change this interface. |
6aa8b732 AK |
8 | */ |
9 | ||
10 | #include <asm/types.h> | |
11 | #include <linux/ioctl.h> | |
12 | ||
2ff81f70 | 13 | #define KVM_API_VERSION 12 |
0b76e20b | 14 | |
9eb829ce | 15 | /* Architectural interrupt line count. */ |
6aa8b732 | 16 | #define KVM_NR_INTERRUPTS 256 |
6aa8b732 AK |
17 | |
18 | /* for KVM_CREATE_MEMORY_REGION */ | |
19 | struct kvm_memory_region { | |
20 | __u32 slot; | |
21 | __u32 flags; | |
22 | __u64 guest_phys_addr; | |
23 | __u64 memory_size; /* bytes */ | |
24 | }; | |
25 | ||
26 | /* for kvm_memory_region::flags */ | |
27 | #define KVM_MEM_LOG_DIRTY_PAGES 1UL | |
28 | ||
e8207547 AK |
29 | struct kvm_memory_alias { |
30 | __u32 slot; /* this has a different namespace than memory slots */ | |
31 | __u32 flags; | |
32 | __u64 guest_phys_addr; | |
33 | __u64 memory_size; | |
34 | __u64 target_phys_addr; | |
35 | }; | |
6aa8b732 | 36 | |
97222cc8 | 37 | /* for KVM_IRQ_LINE */ |
85f455f7 ED |
38 | struct kvm_irq_level { |
39 | /* | |
40 | * ACPI gsi notion of irq. | |
41 | * For IA-64 (APIC model) IOAPIC0: irq 0-23; IOAPIC1: irq 24-47.. | |
42 | * For X86 (standard AT mode) PIC0/1: irq 0-15. IOAPIC0: 0-23.. | |
43 | */ | |
44 | __u32 irq; | |
45 | __u32 level; | |
46 | }; | |
47 | ||
6bf9e962 | 48 | /* for KVM_GET_IRQCHIP and KVM_SET_IRQCHIP */ |
6ceb9d79 HQ |
49 | struct kvm_pic_state { |
50 | __u8 last_irr; /* edge detection */ | |
51 | __u8 irr; /* interrupt request register */ | |
52 | __u8 imr; /* interrupt mask register */ | |
53 | __u8 isr; /* interrupt service register */ | |
54 | __u8 priority_add; /* highest irq priority */ | |
55 | __u8 irq_base; | |
56 | __u8 read_reg_select; | |
57 | __u8 poll; | |
58 | __u8 special_mask; | |
59 | __u8 init_state; | |
60 | __u8 auto_eoi; | |
61 | __u8 rotate_on_auto_eoi; | |
62 | __u8 special_fully_nested_mode; | |
63 | __u8 init4; /* true if 4 byte init */ | |
64 | __u8 elcr; /* PIIX edge/trigger selection */ | |
65 | __u8 elcr_mask; | |
66 | }; | |
67 | ||
6bf9e962 HQ |
68 | #define KVM_IOAPIC_NUM_PINS 24 |
69 | struct kvm_ioapic_state { | |
70 | __u64 base_address; | |
71 | __u32 ioregsel; | |
72 | __u32 id; | |
73 | __u32 irr; | |
74 | __u32 pad; | |
75 | union { | |
76 | __u64 bits; | |
77 | struct { | |
78 | __u8 vector; | |
79 | __u8 delivery_mode:3; | |
80 | __u8 dest_mode:1; | |
81 | __u8 delivery_status:1; | |
82 | __u8 polarity:1; | |
83 | __u8 remote_irr:1; | |
84 | __u8 trig_mode:1; | |
85 | __u8 mask:1; | |
86 | __u8 reserve:7; | |
87 | __u8 reserved[4]; | |
88 | __u8 dest_id; | |
89 | } fields; | |
90 | } redirtbl[KVM_IOAPIC_NUM_PINS]; | |
91 | }; | |
92 | ||
6ceb9d79 HQ |
93 | enum kvm_irqchip_id { |
94 | KVM_IRQCHIP_PIC_MASTER = 0, | |
95 | KVM_IRQCHIP_PIC_SLAVE = 1, | |
6bf9e962 | 96 | KVM_IRQCHIP_IOAPIC = 2, |
6ceb9d79 HQ |
97 | }; |
98 | ||
99 | struct kvm_irqchip { | |
100 | __u32 chip_id; | |
101 | __u32 pad; | |
102 | union { | |
103 | char dummy[512]; /* reserving space */ | |
104 | struct kvm_pic_state pic; | |
6bf9e962 | 105 | struct kvm_ioapic_state ioapic; |
6ceb9d79 HQ |
106 | } chip; |
107 | }; | |
108 | ||
6aa8b732 AK |
109 | enum kvm_exit_reason { |
110 | KVM_EXIT_UNKNOWN = 0, | |
111 | KVM_EXIT_EXCEPTION = 1, | |
112 | KVM_EXIT_IO = 2, | |
b4e63f56 | 113 | KVM_EXIT_HYPERCALL = 3, |
6aa8b732 AK |
114 | KVM_EXIT_DEBUG = 4, |
115 | KVM_EXIT_HLT = 5, | |
116 | KVM_EXIT_MMIO = 6, | |
c1150d8c | 117 | KVM_EXIT_IRQ_WINDOW_OPEN = 7, |
46fe4ddd | 118 | KVM_EXIT_SHUTDOWN = 8, |
8eb7d334 | 119 | KVM_EXIT_FAIL_ENTRY = 9, |
1b19f3e6 | 120 | KVM_EXIT_INTR = 10, |
253abdee | 121 | KVM_EXIT_SET_TPR = 11 |
6aa8b732 AK |
122 | }; |
123 | ||
9a2bb7f4 | 124 | /* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */ |
6aa8b732 AK |
125 | struct kvm_run { |
126 | /* in */ | |
c1150d8c | 127 | __u8 request_interrupt_window; |
02c83209 | 128 | __u8 padding1[7]; |
6aa8b732 AK |
129 | |
130 | /* out */ | |
6aa8b732 | 131 | __u32 exit_reason; |
c1150d8c DL |
132 | __u8 ready_for_interrupt_injection; |
133 | __u8 if_flag; | |
2ff81f70 | 134 | __u8 padding2[2]; |
54810342 DL |
135 | |
136 | /* in (pre_kvm_run), out (post_kvm_run) */ | |
c1150d8c DL |
137 | __u64 cr8; |
138 | __u64 apic_base; | |
139 | ||
6aa8b732 AK |
140 | union { |
141 | /* KVM_EXIT_UNKNOWN */ | |
142 | struct { | |
8eb7d334 | 143 | __u64 hardware_exit_reason; |
6aa8b732 | 144 | } hw; |
8eb7d334 AK |
145 | /* KVM_EXIT_FAIL_ENTRY */ |
146 | struct { | |
147 | __u64 hardware_entry_failure_reason; | |
148 | } fail_entry; | |
6aa8b732 AK |
149 | /* KVM_EXIT_EXCEPTION */ |
150 | struct { | |
151 | __u32 exception; | |
152 | __u32 error_code; | |
153 | } ex; | |
154 | /* KVM_EXIT_IO */ | |
46fc1477 | 155 | struct kvm_io { |
6aa8b732 AK |
156 | #define KVM_EXIT_IO_IN 0 |
157 | #define KVM_EXIT_IO_OUT 1 | |
158 | __u8 direction; | |
159 | __u8 size; /* bytes */ | |
6aa8b732 | 160 | __u16 port; |
039576c0 AK |
161 | __u32 count; |
162 | __u64 data_offset; /* relative to kvm_run start */ | |
6aa8b732 AK |
163 | } io; |
164 | struct { | |
165 | } debug; | |
166 | /* KVM_EXIT_MMIO */ | |
167 | struct { | |
168 | __u64 phys_addr; | |
169 | __u8 data[8]; | |
170 | __u32 len; | |
171 | __u8 is_write; | |
172 | } mmio; | |
b4e63f56 AK |
173 | /* KVM_EXIT_HYPERCALL */ |
174 | struct { | |
519ef353 | 175 | __u64 nr; |
b4e63f56 AK |
176 | __u64 args[6]; |
177 | __u64 ret; | |
178 | __u32 longmode; | |
179 | __u32 pad; | |
180 | } hypercall; | |
24cbc7e9 AK |
181 | /* Fix the size of the union. */ |
182 | char padding[256]; | |
6aa8b732 AK |
183 | }; |
184 | }; | |
185 | ||
186 | /* for KVM_GET_REGS and KVM_SET_REGS */ | |
187 | struct kvm_regs { | |
6aa8b732 AK |
188 | /* out (KVM_GET_REGS) / in (KVM_SET_REGS) */ |
189 | __u64 rax, rbx, rcx, rdx; | |
190 | __u64 rsi, rdi, rsp, rbp; | |
191 | __u64 r8, r9, r10, r11; | |
192 | __u64 r12, r13, r14, r15; | |
193 | __u64 rip, rflags; | |
194 | }; | |
195 | ||
b8836737 AK |
196 | /* for KVM_GET_FPU and KVM_SET_FPU */ |
197 | struct kvm_fpu { | |
198 | __u8 fpr[8][16]; | |
199 | __u16 fcw; | |
200 | __u16 fsw; | |
201 | __u8 ftwx; /* in fxsave format */ | |
202 | __u8 pad1; | |
203 | __u16 last_opcode; | |
204 | __u64 last_ip; | |
205 | __u64 last_dp; | |
206 | __u8 xmm[16][16]; | |
207 | __u32 mxcsr; | |
208 | __u32 pad2; | |
209 | }; | |
210 | ||
96ad2cc6 ED |
211 | /* for KVM_GET_LAPIC and KVM_SET_LAPIC */ |
212 | #define KVM_APIC_REG_SIZE 0x400 | |
213 | struct kvm_lapic_state { | |
214 | char regs[KVM_APIC_REG_SIZE]; | |
215 | }; | |
216 | ||
6aa8b732 AK |
217 | struct kvm_segment { |
218 | __u64 base; | |
219 | __u32 limit; | |
220 | __u16 selector; | |
221 | __u8 type; | |
222 | __u8 present, dpl, db, s, l, g, avl; | |
223 | __u8 unusable; | |
224 | __u8 padding; | |
225 | }; | |
226 | ||
227 | struct kvm_dtable { | |
228 | __u64 base; | |
229 | __u16 limit; | |
230 | __u16 padding[3]; | |
231 | }; | |
232 | ||
233 | /* for KVM_GET_SREGS and KVM_SET_SREGS */ | |
234 | struct kvm_sregs { | |
6aa8b732 AK |
235 | /* out (KVM_GET_SREGS) / in (KVM_SET_SREGS) */ |
236 | struct kvm_segment cs, ds, es, fs, gs, ss; | |
237 | struct kvm_segment tr, ldt; | |
238 | struct kvm_dtable gdt, idt; | |
239 | __u64 cr0, cr2, cr3, cr4, cr8; | |
240 | __u64 efer; | |
241 | __u64 apic_base; | |
9eb829ce | 242 | __u64 interrupt_bitmap[(KVM_NR_INTERRUPTS + 63) / 64]; |
6aa8b732 AK |
243 | }; |
244 | ||
245 | struct kvm_msr_entry { | |
246 | __u32 index; | |
247 | __u32 reserved; | |
248 | __u64 data; | |
249 | }; | |
250 | ||
251 | /* for KVM_GET_MSRS and KVM_SET_MSRS */ | |
252 | struct kvm_msrs { | |
6aa8b732 | 253 | __u32 nmsrs; /* number of msrs in entries */ |
bccf2150 | 254 | __u32 pad; |
6aa8b732 AK |
255 | |
256 | struct kvm_msr_entry entries[0]; | |
257 | }; | |
258 | ||
259 | /* for KVM_GET_MSR_INDEX_LIST */ | |
260 | struct kvm_msr_list { | |
261 | __u32 nmsrs; /* number of msrs in entries */ | |
262 | __u32 indices[0]; | |
263 | }; | |
264 | ||
265 | /* for KVM_TRANSLATE */ | |
266 | struct kvm_translation { | |
267 | /* in */ | |
268 | __u64 linear_address; | |
6aa8b732 AK |
269 | |
270 | /* out */ | |
271 | __u64 physical_address; | |
272 | __u8 valid; | |
273 | __u8 writeable; | |
274 | __u8 usermode; | |
8cd13307 | 275 | __u8 pad[5]; |
6aa8b732 AK |
276 | }; |
277 | ||
278 | /* for KVM_INTERRUPT */ | |
279 | struct kvm_interrupt { | |
280 | /* in */ | |
6aa8b732 AK |
281 | __u32 irq; |
282 | }; | |
283 | ||
284 | struct kvm_breakpoint { | |
285 | __u32 enabled; | |
286 | __u32 padding; | |
287 | __u64 address; | |
288 | }; | |
289 | ||
290 | /* for KVM_DEBUG_GUEST */ | |
291 | struct kvm_debug_guest { | |
292 | /* int */ | |
6aa8b732 | 293 | __u32 enabled; |
bccf2150 | 294 | __u32 pad; |
6aa8b732 AK |
295 | struct kvm_breakpoint breakpoints[4]; |
296 | __u32 singlestep; | |
297 | }; | |
298 | ||
299 | /* for KVM_GET_DIRTY_LOG */ | |
300 | struct kvm_dirty_log { | |
301 | __u32 slot; | |
302 | __u32 padding; | |
303 | union { | |
304 | void __user *dirty_bitmap; /* one bit per page */ | |
305 | __u64 padding; | |
306 | }; | |
307 | }; | |
308 | ||
06465c5a AK |
309 | struct kvm_cpuid_entry { |
310 | __u32 function; | |
311 | __u32 eax; | |
312 | __u32 ebx; | |
313 | __u32 ecx; | |
314 | __u32 edx; | |
315 | __u32 padding; | |
316 | }; | |
317 | ||
318 | /* for KVM_SET_CPUID */ | |
319 | struct kvm_cpuid { | |
320 | __u32 nent; | |
321 | __u32 padding; | |
322 | struct kvm_cpuid_entry entries[0]; | |
323 | }; | |
324 | ||
1961d276 AK |
325 | /* for KVM_SET_SIGNAL_MASK */ |
326 | struct kvm_signal_mask { | |
327 | __u32 len; | |
328 | __u8 sigset[0]; | |
329 | }; | |
330 | ||
6aa8b732 AK |
331 | #define KVMIO 0xAE |
332 | ||
f17abe9a AK |
333 | /* |
334 | * ioctls for /dev/kvm fds: | |
335 | */ | |
739872c5 AK |
336 | #define KVM_GET_API_VERSION _IO(KVMIO, 0x00) |
337 | #define KVM_CREATE_VM _IO(KVMIO, 0x01) /* returns a VM fd */ | |
338 | #define KVM_GET_MSR_INDEX_LIST _IOWR(KVMIO, 0x02, struct kvm_msr_list) | |
5d308f45 AK |
339 | /* |
340 | * Check if a kvm extension is available. Argument is extension number, | |
341 | * return is 1 (yes) or 0 (no, sorry). | |
342 | */ | |
343 | #define KVM_CHECK_EXTENSION _IO(KVMIO, 0x03) | |
07c45a36 AK |
344 | /* |
345 | * Get size for mmap(vcpu_fd) | |
346 | */ | |
347 | #define KVM_GET_VCPU_MMAP_SIZE _IO(KVMIO, 0x04) /* in bytes */ | |
f17abe9a | 348 | |
85f455f7 ED |
349 | /* |
350 | * Extension capability list. | |
351 | */ | |
352 | #define KVM_CAP_IRQCHIP 0 | |
b6958ce4 | 353 | #define KVM_CAP_HLT 1 |
85f455f7 | 354 | |
f17abe9a AK |
355 | /* |
356 | * ioctls for VM fds | |
357 | */ | |
739872c5 | 358 | #define KVM_SET_MEMORY_REGION _IOW(KVMIO, 0x40, struct kvm_memory_region) |
bccf2150 AK |
359 | /* |
360 | * KVM_CREATE_VCPU receives as a parameter the vcpu slot, and returns | |
361 | * a vcpu fd. | |
362 | */ | |
739872c5 AK |
363 | #define KVM_CREATE_VCPU _IO(KVMIO, 0x41) |
364 | #define KVM_GET_DIRTY_LOG _IOW(KVMIO, 0x42, struct kvm_dirty_log) | |
e8207547 | 365 | #define KVM_SET_MEMORY_ALIAS _IOW(KVMIO, 0x43, struct kvm_memory_alias) |
85f455f7 ED |
366 | /* Device model IOC */ |
367 | #define KVM_CREATE_IRQCHIP _IO(KVMIO, 0x60) | |
97222cc8 | 368 | #define KVM_IRQ_LINE _IOW(KVMIO, 0x61, struct kvm_irq_level) |
6ceb9d79 HQ |
369 | #define KVM_GET_IRQCHIP _IOWR(KVMIO, 0x62, struct kvm_irqchip) |
370 | #define KVM_SET_IRQCHIP _IOR(KVMIO, 0x63, struct kvm_irqchip) | |
bccf2150 AK |
371 | |
372 | /* | |
373 | * ioctls for vcpu fds | |
374 | */ | |
739872c5 AK |
375 | #define KVM_RUN _IO(KVMIO, 0x80) |
376 | #define KVM_GET_REGS _IOR(KVMIO, 0x81, struct kvm_regs) | |
377 | #define KVM_SET_REGS _IOW(KVMIO, 0x82, struct kvm_regs) | |
378 | #define KVM_GET_SREGS _IOR(KVMIO, 0x83, struct kvm_sregs) | |
379 | #define KVM_SET_SREGS _IOW(KVMIO, 0x84, struct kvm_sregs) | |
380 | #define KVM_TRANSLATE _IOWR(KVMIO, 0x85, struct kvm_translation) | |
381 | #define KVM_INTERRUPT _IOW(KVMIO, 0x86, struct kvm_interrupt) | |
382 | #define KVM_DEBUG_GUEST _IOW(KVMIO, 0x87, struct kvm_debug_guest) | |
383 | #define KVM_GET_MSRS _IOWR(KVMIO, 0x88, struct kvm_msrs) | |
384 | #define KVM_SET_MSRS _IOW(KVMIO, 0x89, struct kvm_msrs) | |
385 | #define KVM_SET_CPUID _IOW(KVMIO, 0x8a, struct kvm_cpuid) | |
1961d276 | 386 | #define KVM_SET_SIGNAL_MASK _IOW(KVMIO, 0x8b, struct kvm_signal_mask) |
b8836737 AK |
387 | #define KVM_GET_FPU _IOR(KVMIO, 0x8c, struct kvm_fpu) |
388 | #define KVM_SET_FPU _IOW(KVMIO, 0x8d, struct kvm_fpu) | |
96ad2cc6 ED |
389 | #define KVM_GET_LAPIC _IOR(KVMIO, 0x8e, struct kvm_lapic_state) |
390 | #define KVM_SET_LAPIC _IOW(KVMIO, 0x8f, struct kvm_lapic_state) | |
6aa8b732 AK |
391 | |
392 | #endif |