x86: KVM guest: disable clock before rebooting.
[deliverable/linux.git] / include / linux / kvm.h
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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.
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8 */
9
10#include <asm/types.h>
11#include <linux/ioctl.h>
f6a40e3b 12#include <asm/kvm.h>
6aa8b732 13
2ff81f70 14#define KVM_API_VERSION 12
0b76e20b 15
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16/* for KVM_CREATE_MEMORY_REGION */
17struct kvm_memory_region {
18 __u32 slot;
19 __u32 flags;
20 __u64 guest_phys_addr;
21 __u64 memory_size; /* bytes */
22};
23
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24/* for KVM_SET_USER_MEMORY_REGION */
25struct kvm_userspace_memory_region {
26 __u32 slot;
27 __u32 flags;
28 __u64 guest_phys_addr;
29 __u64 memory_size; /* bytes */
30 __u64 userspace_addr; /* start of the userspace allocated memory */
31};
32
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33/* for kvm_memory_region::flags */
34#define KVM_MEM_LOG_DIRTY_PAGES 1UL
35
36
97222cc8 37/* for KVM_IRQ_LINE */
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38struct 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
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48
49struct kvm_irqchip {
50 __u32 chip_id;
51 __u32 pad;
52 union {
53 char dummy[512]; /* reserving space */
51e29625 54#ifdef CONFIG_X86
6ceb9d79 55 struct kvm_pic_state pic;
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56#endif
57#if defined(CONFIG_X86) || defined(CONFIG_IA64)
6bf9e962 58 struct kvm_ioapic_state ioapic;
51e29625 59#endif
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60 } chip;
61};
62
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63#define KVM_EXIT_UNKNOWN 0
64#define KVM_EXIT_EXCEPTION 1
65#define KVM_EXIT_IO 2
66#define KVM_EXIT_HYPERCALL 3
67#define KVM_EXIT_DEBUG 4
68#define KVM_EXIT_HLT 5
69#define KVM_EXIT_MMIO 6
70#define KVM_EXIT_IRQ_WINDOW_OPEN 7
71#define KVM_EXIT_SHUTDOWN 8
72#define KVM_EXIT_FAIL_ENTRY 9
73#define KVM_EXIT_INTR 10
74#define KVM_EXIT_SET_TPR 11
b209749f 75#define KVM_EXIT_TPR_ACCESS 12
6aa8b732 76
9a2bb7f4 77/* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */
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78struct kvm_run {
79 /* in */
c1150d8c 80 __u8 request_interrupt_window;
02c83209 81 __u8 padding1[7];
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82
83 /* out */
6aa8b732 84 __u32 exit_reason;
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85 __u8 ready_for_interrupt_injection;
86 __u8 if_flag;
2ff81f70 87 __u8 padding2[2];
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88
89 /* in (pre_kvm_run), out (post_kvm_run) */
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90 __u64 cr8;
91 __u64 apic_base;
92
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93 union {
94 /* KVM_EXIT_UNKNOWN */
95 struct {
8eb7d334 96 __u64 hardware_exit_reason;
6aa8b732 97 } hw;
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98 /* KVM_EXIT_FAIL_ENTRY */
99 struct {
100 __u64 hardware_entry_failure_reason;
101 } fail_entry;
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102 /* KVM_EXIT_EXCEPTION */
103 struct {
104 __u32 exception;
105 __u32 error_code;
106 } ex;
107 /* KVM_EXIT_IO */
46fc1477 108 struct kvm_io {
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109#define KVM_EXIT_IO_IN 0
110#define KVM_EXIT_IO_OUT 1
111 __u8 direction;
112 __u8 size; /* bytes */
6aa8b732 113 __u16 port;
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114 __u32 count;
115 __u64 data_offset; /* relative to kvm_run start */
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116 } io;
117 struct {
118 } debug;
119 /* KVM_EXIT_MMIO */
120 struct {
121 __u64 phys_addr;
122 __u8 data[8];
123 __u32 len;
124 __u8 is_write;
125 } mmio;
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126 /* KVM_EXIT_HYPERCALL */
127 struct {
519ef353 128 __u64 nr;
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129 __u64 args[6];
130 __u64 ret;
131 __u32 longmode;
132 __u32 pad;
133 } hypercall;
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134 /* KVM_EXIT_TPR_ACCESS */
135 struct {
136 __u64 rip;
137 __u32 is_write;
138 __u32 pad;
139 } tpr_access;
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140 /* Fix the size of the union. */
141 char padding[256];
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142 };
143};
144
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145/* for KVM_TRANSLATE */
146struct kvm_translation {
147 /* in */
148 __u64 linear_address;
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149
150 /* out */
151 __u64 physical_address;
152 __u8 valid;
153 __u8 writeable;
154 __u8 usermode;
8cd13307 155 __u8 pad[5];
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156};
157
158/* for KVM_INTERRUPT */
159struct kvm_interrupt {
160 /* in */
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161 __u32 irq;
162};
163
164struct kvm_breakpoint {
165 __u32 enabled;
166 __u32 padding;
167 __u64 address;
168};
169
170/* for KVM_DEBUG_GUEST */
171struct kvm_debug_guest {
172 /* int */
6aa8b732 173 __u32 enabled;
bccf2150 174 __u32 pad;
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175 struct kvm_breakpoint breakpoints[4];
176 __u32 singlestep;
177};
178
179/* for KVM_GET_DIRTY_LOG */
180struct kvm_dirty_log {
181 __u32 slot;
182 __u32 padding;
183 union {
184 void __user *dirty_bitmap; /* one bit per page */
185 __u64 padding;
186 };
187};
188
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189/* for KVM_SET_SIGNAL_MASK */
190struct kvm_signal_mask {
191 __u32 len;
192 __u8 sigset[0];
193};
194
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195/* for KVM_TPR_ACCESS_REPORTING */
196struct kvm_tpr_access_ctl {
197 __u32 enabled;
198 __u32 flags;
199 __u32 reserved[8];
200};
201
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202/* for KVM_SET_VAPIC_ADDR */
203struct kvm_vapic_addr {
204 __u64 vapic_addr;
205};
206
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207#define KVMIO 0xAE
208
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209/*
210 * ioctls for /dev/kvm fds:
211 */
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212#define KVM_GET_API_VERSION _IO(KVMIO, 0x00)
213#define KVM_CREATE_VM _IO(KVMIO, 0x01) /* returns a VM fd */
214#define KVM_GET_MSR_INDEX_LIST _IOWR(KVMIO, 0x02, struct kvm_msr_list)
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215/*
216 * Check if a kvm extension is available. Argument is extension number,
217 * return is 1 (yes) or 0 (no, sorry).
218 */
219#define KVM_CHECK_EXTENSION _IO(KVMIO, 0x03)
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220/*
221 * Get size for mmap(vcpu_fd)
222 */
223#define KVM_GET_VCPU_MMAP_SIZE _IO(KVMIO, 0x04) /* in bytes */
674eea0f 224#define KVM_GET_SUPPORTED_CPUID _IOWR(KVMIO, 0x05, struct kvm_cpuid2)
f17abe9a 225
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226/*
227 * Extension capability list.
228 */
229#define KVM_CAP_IRQCHIP 0
b6958ce4 230#define KVM_CAP_HLT 1
82ce2c96 231#define KVM_CAP_MMU_SHADOW_CACHE_CONTROL 2
6fc138d2 232#define KVM_CAP_USER_MEMORY 3
cbc94022 233#define KVM_CAP_SET_TSS_ADDR 4
b209749f 234#define KVM_CAP_VAPIC 6
674eea0f 235#define KVM_CAP_EXT_CPUID 7
18068523 236#define KVM_CAP_CLOCKSOURCE 8
f725230a 237#define KVM_CAP_NR_VCPUS 9 /* returns max vcpus per vm */
a988b910 238#define KVM_CAP_NR_MEMSLOTS 10 /* returns max memory slots per vm */
7837699f 239#define KVM_CAP_PIT 11
a28e4f5a 240#define KVM_CAP_NOP_IO_DELAY 12
2f333bcb 241#define KVM_CAP_PV_MMU 13
85f455f7 242
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243/*
244 * ioctls for VM fds
245 */
739872c5 246#define KVM_SET_MEMORY_REGION _IOW(KVMIO, 0x40, struct kvm_memory_region)
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247#define KVM_SET_NR_MMU_PAGES _IO(KVMIO, 0x44)
248#define KVM_GET_NR_MMU_PAGES _IO(KVMIO, 0x45)
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249#define KVM_SET_USER_MEMORY_REGION _IOW(KVMIO, 0x46,\
250 struct kvm_userspace_memory_region)
cbc94022 251#define KVM_SET_TSS_ADDR _IO(KVMIO, 0x47)
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252/*
253 * KVM_CREATE_VCPU receives as a parameter the vcpu slot, and returns
254 * a vcpu fd.
255 */
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256#define KVM_CREATE_VCPU _IO(KVMIO, 0x41)
257#define KVM_GET_DIRTY_LOG _IOW(KVMIO, 0x42, struct kvm_dirty_log)
e8207547 258#define KVM_SET_MEMORY_ALIAS _IOW(KVMIO, 0x43, struct kvm_memory_alias)
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259/* Device model IOC */
260#define KVM_CREATE_IRQCHIP _IO(KVMIO, 0x60)
97222cc8 261#define KVM_IRQ_LINE _IOW(KVMIO, 0x61, struct kvm_irq_level)
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262#define KVM_GET_IRQCHIP _IOWR(KVMIO, 0x62, struct kvm_irqchip)
263#define KVM_SET_IRQCHIP _IOR(KVMIO, 0x63, struct kvm_irqchip)
7837699f 264#define KVM_CREATE_PIT _IO(KVMIO, 0x64)
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265#define KVM_GET_PIT _IOWR(KVMIO, 0x65, struct kvm_pit_state)
266#define KVM_SET_PIT _IOR(KVMIO, 0x66, struct kvm_pit_state)
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267
268/*
269 * ioctls for vcpu fds
270 */
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271#define KVM_RUN _IO(KVMIO, 0x80)
272#define KVM_GET_REGS _IOR(KVMIO, 0x81, struct kvm_regs)
273#define KVM_SET_REGS _IOW(KVMIO, 0x82, struct kvm_regs)
274#define KVM_GET_SREGS _IOR(KVMIO, 0x83, struct kvm_sregs)
275#define KVM_SET_SREGS _IOW(KVMIO, 0x84, struct kvm_sregs)
276#define KVM_TRANSLATE _IOWR(KVMIO, 0x85, struct kvm_translation)
277#define KVM_INTERRUPT _IOW(KVMIO, 0x86, struct kvm_interrupt)
278#define KVM_DEBUG_GUEST _IOW(KVMIO, 0x87, struct kvm_debug_guest)
279#define KVM_GET_MSRS _IOWR(KVMIO, 0x88, struct kvm_msrs)
280#define KVM_SET_MSRS _IOW(KVMIO, 0x89, struct kvm_msrs)
281#define KVM_SET_CPUID _IOW(KVMIO, 0x8a, struct kvm_cpuid)
1961d276 282#define KVM_SET_SIGNAL_MASK _IOW(KVMIO, 0x8b, struct kvm_signal_mask)
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283#define KVM_GET_FPU _IOR(KVMIO, 0x8c, struct kvm_fpu)
284#define KVM_SET_FPU _IOW(KVMIO, 0x8d, struct kvm_fpu)
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285#define KVM_GET_LAPIC _IOR(KVMIO, 0x8e, struct kvm_lapic_state)
286#define KVM_SET_LAPIC _IOW(KVMIO, 0x8f, struct kvm_lapic_state)
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287#define KVM_SET_CPUID2 _IOW(KVMIO, 0x90, struct kvm_cpuid2)
288#define KVM_GET_CPUID2 _IOWR(KVMIO, 0x91, struct kvm_cpuid2)
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289/* Available with KVM_CAP_VAPIC */
290#define KVM_TPR_ACCESS_REPORTING _IOWR(KVMIO, 0x92, struct kvm_tpr_access_ctl)
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291/* Available with KVM_CAP_VAPIC */
292#define KVM_SET_VAPIC_ADDR _IOW(KVMIO, 0x93, struct kvm_vapic_addr)
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293
294#endif
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