5 * Userspace interface for /dev/kvm - kernel based virtual machine
7 * Note: you must update KVM_API_VERSION if you change this interface.
10 #include <asm/types.h>
11 #include <linux/ioctl.h>
14 #define KVM_API_VERSION 12
16 /* for KVM_CREATE_MEMORY_REGION */
17 struct kvm_memory_region {
20 __u64 guest_phys_addr;
21 __u64 memory_size; /* bytes */
24 /* for KVM_SET_USER_MEMORY_REGION */
25 struct kvm_userspace_memory_region {
28 __u64 guest_phys_addr;
29 __u64 memory_size; /* bytes */
30 __u64 userspace_addr; /* start of the userspace allocated memory */
33 /* for kvm_memory_region::flags */
34 #define KVM_MEM_LOG_DIRTY_PAGES 1UL
37 /* for KVM_IRQ_LINE */
38 struct kvm_irq_level {
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..
53 char dummy[512]; /* reserving space */
55 struct kvm_pic_state pic;
57 #if defined(CONFIG_X86) || defined(CONFIG_IA64)
58 struct kvm_ioapic_state ioapic;
63 #define KVM_EXIT_UNKNOWN 0
64 #define KVM_EXIT_EXCEPTION 1
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
75 #define KVM_EXIT_TPR_ACCESS 12
77 /* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */
80 __u8 request_interrupt_window;
85 __u8 ready_for_interrupt_injection;
89 /* in (pre_kvm_run), out (post_kvm_run) */
94 /* KVM_EXIT_UNKNOWN */
96 __u64 hardware_exit_reason;
98 /* KVM_EXIT_FAIL_ENTRY */
100 __u64 hardware_entry_failure_reason;
102 /* KVM_EXIT_EXCEPTION */
109 #define KVM_EXIT_IO_IN 0
110 #define KVM_EXIT_IO_OUT 1
112 __u8 size; /* bytes */
115 __u64 data_offset; /* relative to kvm_run start */
126 /* KVM_EXIT_HYPERCALL */
134 /* KVM_EXIT_TPR_ACCESS */
140 /* Fix the size of the union. */
145 /* for KVM_TRANSLATE */
146 struct kvm_translation {
148 __u64 linear_address;
151 __u64 physical_address;
158 /* for KVM_INTERRUPT */
159 struct kvm_interrupt {
164 struct kvm_breakpoint {
170 /* for KVM_DEBUG_GUEST */
171 struct kvm_debug_guest {
175 struct kvm_breakpoint breakpoints[4];
179 /* for KVM_GET_DIRTY_LOG */
180 struct kvm_dirty_log {
184 void __user *dirty_bitmap; /* one bit per page */
189 /* for KVM_SET_SIGNAL_MASK */
190 struct kvm_signal_mask {
195 /* for KVM_TPR_ACCESS_REPORTING */
196 struct kvm_tpr_access_ctl {
202 /* for KVM_SET_VAPIC_ADDR */
203 struct kvm_vapic_addr {
210 * ioctls for /dev/kvm fds:
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)
216 * Check if a kvm extension is available. Argument is extension number,
217 * return is 1 (yes) or 0 (no, sorry).
219 #define KVM_CHECK_EXTENSION _IO(KVMIO, 0x03)
221 * Get size for mmap(vcpu_fd)
223 #define KVM_GET_VCPU_MMAP_SIZE _IO(KVMIO, 0x04) /* in bytes */
224 #define KVM_GET_SUPPORTED_CPUID _IOWR(KVMIO, 0x05, struct kvm_cpuid2)
227 * Extension capability list.
229 #define KVM_CAP_IRQCHIP 0
230 #define KVM_CAP_HLT 1
231 #define KVM_CAP_MMU_SHADOW_CACHE_CONTROL 2
232 #define KVM_CAP_USER_MEMORY 3
233 #define KVM_CAP_SET_TSS_ADDR 4
234 #define KVM_CAP_VAPIC 6
235 #define KVM_CAP_EXT_CPUID 7
240 #define KVM_SET_MEMORY_REGION _IOW(KVMIO, 0x40, struct kvm_memory_region)
241 #define KVM_SET_NR_MMU_PAGES _IO(KVMIO, 0x44)
242 #define KVM_GET_NR_MMU_PAGES _IO(KVMIO, 0x45)
243 #define KVM_SET_USER_MEMORY_REGION _IOW(KVMIO, 0x46,\
244 struct kvm_userspace_memory_region)
245 #define KVM_SET_TSS_ADDR _IO(KVMIO, 0x47)
247 * KVM_CREATE_VCPU receives as a parameter the vcpu slot, and returns
250 #define KVM_CREATE_VCPU _IO(KVMIO, 0x41)
251 #define KVM_GET_DIRTY_LOG _IOW(KVMIO, 0x42, struct kvm_dirty_log)
252 #define KVM_SET_MEMORY_ALIAS _IOW(KVMIO, 0x43, struct kvm_memory_alias)
253 /* Device model IOC */
254 #define KVM_CREATE_IRQCHIP _IO(KVMIO, 0x60)
255 #define KVM_IRQ_LINE _IOW(KVMIO, 0x61, struct kvm_irq_level)
256 #define KVM_GET_IRQCHIP _IOWR(KVMIO, 0x62, struct kvm_irqchip)
257 #define KVM_SET_IRQCHIP _IOR(KVMIO, 0x63, struct kvm_irqchip)
260 * ioctls for vcpu fds
262 #define KVM_RUN _IO(KVMIO, 0x80)
263 #define KVM_GET_REGS _IOR(KVMIO, 0x81, struct kvm_regs)
264 #define KVM_SET_REGS _IOW(KVMIO, 0x82, struct kvm_regs)
265 #define KVM_GET_SREGS _IOR(KVMIO, 0x83, struct kvm_sregs)
266 #define KVM_SET_SREGS _IOW(KVMIO, 0x84, struct kvm_sregs)
267 #define KVM_TRANSLATE _IOWR(KVMIO, 0x85, struct kvm_translation)
268 #define KVM_INTERRUPT _IOW(KVMIO, 0x86, struct kvm_interrupt)
269 #define KVM_DEBUG_GUEST _IOW(KVMIO, 0x87, struct kvm_debug_guest)
270 #define KVM_GET_MSRS _IOWR(KVMIO, 0x88, struct kvm_msrs)
271 #define KVM_SET_MSRS _IOW(KVMIO, 0x89, struct kvm_msrs)
272 #define KVM_SET_CPUID _IOW(KVMIO, 0x8a, struct kvm_cpuid)
273 #define KVM_SET_SIGNAL_MASK _IOW(KVMIO, 0x8b, struct kvm_signal_mask)
274 #define KVM_GET_FPU _IOR(KVMIO, 0x8c, struct kvm_fpu)
275 #define KVM_SET_FPU _IOW(KVMIO, 0x8d, struct kvm_fpu)
276 #define KVM_GET_LAPIC _IOR(KVMIO, 0x8e, struct kvm_lapic_state)
277 #define KVM_SET_LAPIC _IOW(KVMIO, 0x8f, struct kvm_lapic_state)
278 #define KVM_SET_CPUID2 _IOW(KVMIO, 0x90, struct kvm_cpuid2)
279 #define KVM_GET_CPUID2 _IOWR(KVMIO, 0x91, struct kvm_cpuid2)
280 /* Available with KVM_CAP_VAPIC */
281 #define KVM_TPR_ACCESS_REPORTING _IOWR(KVMIO, 0x92, struct kvm_tpr_access_ctl)
282 /* Available with KVM_CAP_VAPIC */
283 #define KVM_SET_VAPIC_ADDR _IOW(KVMIO, 0x93, struct kvm_vapic_addr)