/*
* Userspace interface for /dev/kvm - kernel based virtual machine
*
- * Note: this interface is considered experimental and may change without
- * notice.
+ * Note: you must update KVM_API_VERSION if you change this interface.
*/
#include <asm/types.h>
#include <linux/ioctl.h>
+#include <asm/kvm.h>
-#define KVM_API_VERSION 9
-
-/*
- * Architectural interrupt line count, and the size of the bitmap needed
- * to hold them.
- */
-#define KVM_NR_INTERRUPTS 256
-#define KVM_IRQ_BITMAP_SIZE_BYTES ((KVM_NR_INTERRUPTS + 7) / 8)
-#define KVM_IRQ_BITMAP_SIZE(type) (KVM_IRQ_BITMAP_SIZE_BYTES / sizeof(type))
-
+#define KVM_API_VERSION 12
/* for KVM_CREATE_MEMORY_REGION */
struct kvm_memory_region {
__u64 memory_size; /* bytes */
};
+/* for KVM_SET_USER_MEMORY_REGION */
+struct kvm_userspace_memory_region {
+ __u32 slot;
+ __u32 flags;
+ __u64 guest_phys_addr;
+ __u64 memory_size; /* bytes */
+ __u64 userspace_addr; /* start of the userspace allocated memory */
+};
+
/* for kvm_memory_region::flags */
#define KVM_MEM_LOG_DIRTY_PAGES 1UL
-enum kvm_exit_reason {
- KVM_EXIT_UNKNOWN = 0,
- KVM_EXIT_EXCEPTION = 1,
- KVM_EXIT_IO = 2,
- KVM_EXIT_HYPERCALL = 3,
- KVM_EXIT_DEBUG = 4,
- KVM_EXIT_HLT = 5,
- KVM_EXIT_MMIO = 6,
- KVM_EXIT_IRQ_WINDOW_OPEN = 7,
- KVM_EXIT_SHUTDOWN = 8,
- KVM_EXIT_FAIL_ENTRY = 9,
- KVM_EXIT_INTR = 10,
+/* for KVM_IRQ_LINE */
+struct kvm_irq_level {
+ /*
+ * ACPI gsi notion of irq.
+ * For IA-64 (APIC model) IOAPIC0: irq 0-23; IOAPIC1: irq 24-47..
+ * For X86 (standard AT mode) PIC0/1: irq 0-15. IOAPIC0: 0-23..
+ */
+ __u32 irq;
+ __u32 level;
+};
+
+
+struct kvm_irqchip {
+ __u32 chip_id;
+ __u32 pad;
+ union {
+ char dummy[512]; /* reserving space */
+#ifdef CONFIG_X86
+ struct kvm_pic_state pic;
+#endif
+#if defined(CONFIG_X86) || defined(CONFIG_IA64)
+ struct kvm_ioapic_state ioapic;
+#endif
+ } chip;
};
+#define KVM_EXIT_UNKNOWN 0
+#define KVM_EXIT_EXCEPTION 1
+#define KVM_EXIT_IO 2
+#define KVM_EXIT_HYPERCALL 3
+#define KVM_EXIT_DEBUG 4
+#define KVM_EXIT_HLT 5
+#define KVM_EXIT_MMIO 6
+#define KVM_EXIT_IRQ_WINDOW_OPEN 7
+#define KVM_EXIT_SHUTDOWN 8
+#define KVM_EXIT_FAIL_ENTRY 9
+#define KVM_EXIT_INTR 10
+#define KVM_EXIT_SET_TPR 11
+#define KVM_EXIT_TPR_ACCESS 12
+
/* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */
struct kvm_run {
/* in */
- __u32 io_completed; /* mmio/pio request completed */
__u8 request_interrupt_window;
- __u8 padding1[3];
+ __u8 padding1[7];
/* out */
__u32 exit_reason;
- __u32 instruction_length;
__u8 ready_for_interrupt_injection;
__u8 if_flag;
- __u8 padding2[6];
+ __u8 padding2[2];
/* in (pre_kvm_run), out (post_kvm_run) */
__u64 cr8;
#define KVM_EXIT_IO_OUT 1
__u8 direction;
__u8 size; /* bytes */
- __u8 string;
- __u8 string_down;
- __u8 rep;
- __u8 pad;
__u16 port;
- __u64 count;
- union {
- __u64 address;
- __u32 value;
- };
+ __u32 count;
+ __u64 data_offset; /* relative to kvm_run start */
} io;
struct {
} debug;
} mmio;
/* KVM_EXIT_HYPERCALL */
struct {
+ __u64 nr;
__u64 args[6];
__u64 ret;
__u32 longmode;
__u32 pad;
} hypercall;
+ /* KVM_EXIT_TPR_ACCESS */
+ struct {
+ __u64 rip;
+ __u32 is_write;
+ __u32 pad;
+ } tpr_access;
+ /* Fix the size of the union. */
+ char padding[256];
};
};
-/* for KVM_GET_REGS and KVM_SET_REGS */
-struct kvm_regs {
- /* out (KVM_GET_REGS) / in (KVM_SET_REGS) */
- __u64 rax, rbx, rcx, rdx;
- __u64 rsi, rdi, rsp, rbp;
- __u64 r8, r9, r10, r11;
- __u64 r12, r13, r14, r15;
- __u64 rip, rflags;
-};
-
-struct kvm_segment {
- __u64 base;
- __u32 limit;
- __u16 selector;
- __u8 type;
- __u8 present, dpl, db, s, l, g, avl;
- __u8 unusable;
- __u8 padding;
-};
-
-struct kvm_dtable {
- __u64 base;
- __u16 limit;
- __u16 padding[3];
-};
-
-/* for KVM_GET_SREGS and KVM_SET_SREGS */
-struct kvm_sregs {
- /* out (KVM_GET_SREGS) / in (KVM_SET_SREGS) */
- struct kvm_segment cs, ds, es, fs, gs, ss;
- struct kvm_segment tr, ldt;
- struct kvm_dtable gdt, idt;
- __u64 cr0, cr2, cr3, cr4, cr8;
- __u64 efer;
- __u64 apic_base;
- __u64 interrupt_bitmap[KVM_IRQ_BITMAP_SIZE(__u64)];
-};
-
-struct kvm_msr_entry {
- __u32 index;
- __u32 reserved;
- __u64 data;
-};
-
-/* for KVM_GET_MSRS and KVM_SET_MSRS */
-struct kvm_msrs {
- __u32 nmsrs; /* number of msrs in entries */
- __u32 pad;
-
- struct kvm_msr_entry entries[0];
-};
-
-/* for KVM_GET_MSR_INDEX_LIST */
-struct kvm_msr_list {
- __u32 nmsrs; /* number of msrs in entries */
- __u32 indices[0];
-};
-
/* for KVM_TRANSLATE */
struct kvm_translation {
/* in */
};
};
-struct kvm_cpuid_entry {
- __u32 function;
- __u32 eax;
- __u32 ebx;
- __u32 ecx;
- __u32 edx;
- __u32 padding;
+/* for KVM_SET_SIGNAL_MASK */
+struct kvm_signal_mask {
+ __u32 len;
+ __u8 sigset[0];
};
-/* for KVM_SET_CPUID */
-struct kvm_cpuid {
- __u32 nent;
- __u32 padding;
- struct kvm_cpuid_entry entries[0];
+/* for KVM_TPR_ACCESS_REPORTING */
+struct kvm_tpr_access_ctl {
+ __u32 enabled;
+ __u32 flags;
+ __u32 reserved[8];
+};
+
+/* for KVM_SET_VAPIC_ADDR */
+struct kvm_vapic_addr {
+ __u64 vapic_addr;
};
#define KVMIO 0xAE
* return is 1 (yes) or 0 (no, sorry).
*/
#define KVM_CHECK_EXTENSION _IO(KVMIO, 0x03)
+/*
+ * Get size for mmap(vcpu_fd)
+ */
+#define KVM_GET_VCPU_MMAP_SIZE _IO(KVMIO, 0x04) /* in bytes */
+#define KVM_GET_SUPPORTED_CPUID _IOWR(KVMIO, 0x05, struct kvm_cpuid2)
+
+/*
+ * Extension capability list.
+ */
+#define KVM_CAP_IRQCHIP 0
+#define KVM_CAP_HLT 1
+#define KVM_CAP_MMU_SHADOW_CACHE_CONTROL 2
+#define KVM_CAP_USER_MEMORY 3
+#define KVM_CAP_SET_TSS_ADDR 4
+#define KVM_CAP_VAPIC 6
+#define KVM_CAP_EXT_CPUID 7
+#define KVM_CAP_CLOCKSOURCE 8
+#define KVM_CAP_NR_VCPUS 9 /* returns max vcpus per vm */
+#define KVM_CAP_NR_MEMSLOTS 10 /* returns max memory slots per vm */
+#define KVM_CAP_PIT 11
+#define KVM_CAP_NOP_IO_DELAY 12
+#define KVM_CAP_PV_MMU 13
/*
* ioctls for VM fds
*/
#define KVM_SET_MEMORY_REGION _IOW(KVMIO, 0x40, struct kvm_memory_region)
+#define KVM_SET_NR_MMU_PAGES _IO(KVMIO, 0x44)
+#define KVM_GET_NR_MMU_PAGES _IO(KVMIO, 0x45)
+#define KVM_SET_USER_MEMORY_REGION _IOW(KVMIO, 0x46,\
+ struct kvm_userspace_memory_region)
+#define KVM_SET_TSS_ADDR _IO(KVMIO, 0x47)
/*
* KVM_CREATE_VCPU receives as a parameter the vcpu slot, and returns
* a vcpu fd.
*/
#define KVM_CREATE_VCPU _IO(KVMIO, 0x41)
#define KVM_GET_DIRTY_LOG _IOW(KVMIO, 0x42, struct kvm_dirty_log)
+#define KVM_SET_MEMORY_ALIAS _IOW(KVMIO, 0x43, struct kvm_memory_alias)
+/* Device model IOC */
+#define KVM_CREATE_IRQCHIP _IO(KVMIO, 0x60)
+#define KVM_IRQ_LINE _IOW(KVMIO, 0x61, struct kvm_irq_level)
+#define KVM_GET_IRQCHIP _IOWR(KVMIO, 0x62, struct kvm_irqchip)
+#define KVM_SET_IRQCHIP _IOR(KVMIO, 0x63, struct kvm_irqchip)
+#define KVM_CREATE_PIT _IO(KVMIO, 0x64)
+#define KVM_GET_PIT _IOWR(KVMIO, 0x65, struct kvm_pit_state)
+#define KVM_SET_PIT _IOR(KVMIO, 0x66, struct kvm_pit_state)
/*
* ioctls for vcpu fds
#define KVM_GET_MSRS _IOWR(KVMIO, 0x88, struct kvm_msrs)
#define KVM_SET_MSRS _IOW(KVMIO, 0x89, struct kvm_msrs)
#define KVM_SET_CPUID _IOW(KVMIO, 0x8a, struct kvm_cpuid)
+#define KVM_SET_SIGNAL_MASK _IOW(KVMIO, 0x8b, struct kvm_signal_mask)
+#define KVM_GET_FPU _IOR(KVMIO, 0x8c, struct kvm_fpu)
+#define KVM_SET_FPU _IOW(KVMIO, 0x8d, struct kvm_fpu)
+#define KVM_GET_LAPIC _IOR(KVMIO, 0x8e, struct kvm_lapic_state)
+#define KVM_SET_LAPIC _IOW(KVMIO, 0x8f, struct kvm_lapic_state)
+#define KVM_SET_CPUID2 _IOW(KVMIO, 0x90, struct kvm_cpuid2)
+#define KVM_GET_CPUID2 _IOWR(KVMIO, 0x91, struct kvm_cpuid2)
+/* Available with KVM_CAP_VAPIC */
+#define KVM_TPR_ACCESS_REPORTING _IOWR(KVMIO, 0x92, struct kvm_tpr_access_ctl)
+/* Available with KVM_CAP_VAPIC */
+#define KVM_SET_VAPIC_ADDR _IOW(KVMIO, 0x93, struct kvm_vapic_addr)
#endif
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