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/compiler.h>
12 #include <linux/ioctl.h>
15 #define KVM_API_VERSION 12
17 /* for KVM_CREATE_MEMORY_REGION */
18 struct kvm_memory_region {
21 __u64 guest_phys_addr;
22 __u64 memory_size; /* bytes */
25 /* for KVM_SET_USER_MEMORY_REGION */
26 struct kvm_userspace_memory_region {
29 __u64 guest_phys_addr;
30 __u64 memory_size; /* bytes */
31 __u64 userspace_addr; /* start of the userspace allocated memory */
34 /* for kvm_memory_region::flags */
35 #define KVM_MEM_LOG_DIRTY_PAGES 1UL
38 /* for KVM_IRQ_LINE */
39 struct kvm_irq_level {
41 * ACPI gsi notion of irq.
42 * For IA-64 (APIC model) IOAPIC0: irq 0-23; IOAPIC1: irq 24-47..
43 * For X86 (standard AT mode) PIC0/1: irq 0-15. IOAPIC0: 0-23..
54 char dummy[512]; /* reserving space */
56 struct kvm_pic_state pic;
58 #if defined(CONFIG_X86) || defined(CONFIG_IA64)
59 struct kvm_ioapic_state ioapic;
64 #define KVM_EXIT_UNKNOWN 0
65 #define KVM_EXIT_EXCEPTION 1
67 #define KVM_EXIT_HYPERCALL 3
68 #define KVM_EXIT_DEBUG 4
69 #define KVM_EXIT_HLT 5
70 #define KVM_EXIT_MMIO 6
71 #define KVM_EXIT_IRQ_WINDOW_OPEN 7
72 #define KVM_EXIT_SHUTDOWN 8
73 #define KVM_EXIT_FAIL_ENTRY 9
74 #define KVM_EXIT_INTR 10
75 #define KVM_EXIT_SET_TPR 11
76 #define KVM_EXIT_TPR_ACCESS 12
78 /* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */
81 __u8 request_interrupt_window;
86 __u8 ready_for_interrupt_injection;
90 /* in (pre_kvm_run), out (post_kvm_run) */
95 /* KVM_EXIT_UNKNOWN */
97 __u64 hardware_exit_reason;
99 /* KVM_EXIT_FAIL_ENTRY */
101 __u64 hardware_entry_failure_reason;
103 /* KVM_EXIT_EXCEPTION */
110 #define KVM_EXIT_IO_IN 0
111 #define KVM_EXIT_IO_OUT 1
113 __u8 size; /* bytes */
116 __u64 data_offset; /* relative to kvm_run start */
127 /* KVM_EXIT_HYPERCALL */
135 /* KVM_EXIT_TPR_ACCESS */
141 /* Fix the size of the union. */
146 /* for KVM_TRANSLATE */
147 struct kvm_translation {
149 __u64 linear_address;
152 __u64 physical_address;
159 /* for KVM_INTERRUPT */
160 struct kvm_interrupt {
165 struct kvm_breakpoint {
171 /* for KVM_DEBUG_GUEST */
172 struct kvm_debug_guest {
176 struct kvm_breakpoint breakpoints[4];
180 /* for KVM_GET_DIRTY_LOG */
181 struct kvm_dirty_log {
185 void __user *dirty_bitmap; /* one bit per page */
190 /* for KVM_SET_SIGNAL_MASK */
191 struct kvm_signal_mask {
196 /* for KVM_TPR_ACCESS_REPORTING */
197 struct kvm_tpr_access_ctl {
203 /* for KVM_SET_VAPIC_ADDR */
204 struct kvm_vapic_addr {
208 struct kvm_s390_psw {
216 * ioctls for /dev/kvm fds:
218 #define KVM_GET_API_VERSION _IO(KVMIO, 0x00)
219 #define KVM_CREATE_VM _IO(KVMIO, 0x01) /* returns a VM fd */
220 #define KVM_GET_MSR_INDEX_LIST _IOWR(KVMIO, 0x02, struct kvm_msr_list)
222 #define KVM_S390_ENABLE_SIE _IO(KVMIO, 0x06)
224 * Check if a kvm extension is available. Argument is extension number,
225 * return is 1 (yes) or 0 (no, sorry).
227 #define KVM_CHECK_EXTENSION _IO(KVMIO, 0x03)
229 * Get size for mmap(vcpu_fd)
231 #define KVM_GET_VCPU_MMAP_SIZE _IO(KVMIO, 0x04) /* in bytes */
232 #define KVM_GET_SUPPORTED_CPUID _IOWR(KVMIO, 0x05, struct kvm_cpuid2)
235 * Extension capability list.
237 #define KVM_CAP_IRQCHIP 0
238 #define KVM_CAP_HLT 1
239 #define KVM_CAP_MMU_SHADOW_CACHE_CONTROL 2
240 #define KVM_CAP_USER_MEMORY 3
241 #define KVM_CAP_SET_TSS_ADDR 4
242 #define KVM_CAP_VAPIC 6
243 #define KVM_CAP_EXT_CPUID 7
244 #define KVM_CAP_CLOCKSOURCE 8
245 #define KVM_CAP_NR_VCPUS 9 /* returns max vcpus per vm */
246 #define KVM_CAP_NR_MEMSLOTS 10 /* returns max memory slots per vm */
247 #define KVM_CAP_PIT 11
248 #define KVM_CAP_NOP_IO_DELAY 12
249 #define KVM_CAP_PV_MMU 13
254 #define KVM_SET_MEMORY_REGION _IOW(KVMIO, 0x40, struct kvm_memory_region)
255 #define KVM_SET_NR_MMU_PAGES _IO(KVMIO, 0x44)
256 #define KVM_GET_NR_MMU_PAGES _IO(KVMIO, 0x45)
257 #define KVM_SET_USER_MEMORY_REGION _IOW(KVMIO, 0x46,\
258 struct kvm_userspace_memory_region)
259 #define KVM_SET_TSS_ADDR _IO(KVMIO, 0x47)
261 * KVM_CREATE_VCPU receives as a parameter the vcpu slot, and returns
264 #define KVM_CREATE_VCPU _IO(KVMIO, 0x41)
265 #define KVM_GET_DIRTY_LOG _IOW(KVMIO, 0x42, struct kvm_dirty_log)
266 #define KVM_SET_MEMORY_ALIAS _IOW(KVMIO, 0x43, struct kvm_memory_alias)
267 /* Device model IOC */
268 #define KVM_CREATE_IRQCHIP _IO(KVMIO, 0x60)
269 #define KVM_IRQ_LINE _IOW(KVMIO, 0x61, struct kvm_irq_level)
270 #define KVM_GET_IRQCHIP _IOWR(KVMIO, 0x62, struct kvm_irqchip)
271 #define KVM_SET_IRQCHIP _IOR(KVMIO, 0x63, struct kvm_irqchip)
272 #define KVM_CREATE_PIT _IO(KVMIO, 0x64)
273 #define KVM_GET_PIT _IOWR(KVMIO, 0x65, struct kvm_pit_state)
274 #define KVM_SET_PIT _IOR(KVMIO, 0x66, struct kvm_pit_state)
277 * ioctls for vcpu fds
279 #define KVM_RUN _IO(KVMIO, 0x80)
280 #define KVM_GET_REGS _IOR(KVMIO, 0x81, struct kvm_regs)
281 #define KVM_SET_REGS _IOW(KVMIO, 0x82, struct kvm_regs)
282 #define KVM_GET_SREGS _IOR(KVMIO, 0x83, struct kvm_sregs)
283 #define KVM_SET_SREGS _IOW(KVMIO, 0x84, struct kvm_sregs)
284 #define KVM_TRANSLATE _IOWR(KVMIO, 0x85, struct kvm_translation)
285 #define KVM_INTERRUPT _IOW(KVMIO, 0x86, struct kvm_interrupt)
286 #define KVM_DEBUG_GUEST _IOW(KVMIO, 0x87, struct kvm_debug_guest)
287 #define KVM_GET_MSRS _IOWR(KVMIO, 0x88, struct kvm_msrs)
288 #define KVM_SET_MSRS _IOW(KVMIO, 0x89, struct kvm_msrs)
289 #define KVM_SET_CPUID _IOW(KVMIO, 0x8a, struct kvm_cpuid)
290 #define KVM_SET_SIGNAL_MASK _IOW(KVMIO, 0x8b, struct kvm_signal_mask)
291 #define KVM_GET_FPU _IOR(KVMIO, 0x8c, struct kvm_fpu)
292 #define KVM_SET_FPU _IOW(KVMIO, 0x8d, struct kvm_fpu)
293 #define KVM_GET_LAPIC _IOR(KVMIO, 0x8e, struct kvm_lapic_state)
294 #define KVM_SET_LAPIC _IOW(KVMIO, 0x8f, struct kvm_lapic_state)
295 #define KVM_SET_CPUID2 _IOW(KVMIO, 0x90, struct kvm_cpuid2)
296 #define KVM_GET_CPUID2 _IOWR(KVMIO, 0x91, struct kvm_cpuid2)
297 /* Available with KVM_CAP_VAPIC */
298 #define KVM_TPR_ACCESS_REPORTING _IOWR(KVMIO, 0x92, struct kvm_tpr_access_ctl)
299 /* Available with KVM_CAP_VAPIC */
300 #define KVM_SET_VAPIC_ADDR _IOW(KVMIO, 0x93, struct kvm_vapic_addr)
301 /* store status for s390 */
302 #define KVM_S390_STORE_STATUS_NOADDR (-1ul)
303 #define KVM_S390_STORE_STATUS_PREFIXED (-2ul)
304 #define KVM_S390_STORE_STATUS _IOW(KVMIO, 0x95, unsigned long)
305 /* initial ipl psw for s390 */
306 #define KVM_S390_SET_INITIAL_PSW _IOW(KVMIO, 0x96, struct kvm_s390_psw)
307 /* initial reset for s390 */
308 #define KVM_S390_INITIAL_RESET _IO(KVMIO, 0x97)