include/linux/kvm.h - arm/linux-arm64-legacy - Git at Google

 #ifndef __LINUX_KVM_H
 #define __LINUX_KVM_H

 /*
  * Userspace interface for /dev/kvm - kernel based virtual machine
  *
  * Note: this interface is considered experimental and may change without
  *       notice.
  */

 #include <asm/types.h>
 #include <linux/ioctl.h>

 #define KVM_API_VERSION 12

 /*
  * 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))


 /* for KVM_CREATE_MEMORY_REGION */
 struct kvm_memory_region {
 	__u32 slot;
 	__u32 flags;
 	__u64 guest_phys_addr;
 	__u64 memory_size; /* bytes */
 };

 /* for kvm_memory_region::flags */
 #define KVM_MEM_LOG_DIRTY_PAGES  1UL

 struct kvm_memory_alias {
 	__u32 slot;  /* this has a different namespace than memory slots */
 	__u32 flags;
 	__u64 guest_phys_addr;
 	__u64 memory_size;
 	__u64 target_phys_addr;
 };

 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_RUN, returned by mmap(vcpu_fd, offset=0) */
 struct kvm_run {
 	/* in */
 	__u8 request_interrupt_window;
 	__u8 padding1[7];

 	/* out */
 	__u32 exit_reason;
 	__u8 ready_for_interrupt_injection;
 	__u8 if_flag;
 	__u8 padding2[2];

 	/* in (pre_kvm_run), out (post_kvm_run) */
 	__u64 cr8;
 	__u64 apic_base;

 	union {
 		/* KVM_EXIT_UNKNOWN */
 		struct {
 			__u64 hardware_exit_reason;
 		} hw;
 		/* KVM_EXIT_FAIL_ENTRY */
 		struct {
 			__u64 hardware_entry_failure_reason;
 		} fail_entry;
 		/* KVM_EXIT_EXCEPTION */
 		struct {
 			__u32 exception;
 			__u32 error_code;
 		} ex;
 		/* KVM_EXIT_IO */
 		struct kvm_io {
 #define KVM_EXIT_IO_IN  0
 #define KVM_EXIT_IO_OUT 1
 			__u8 direction;
 			__u8 size; /* bytes */
 			__u16 port;
 			__u32 count;
 			__u64 data_offset; /* relative to kvm_run start */
 		} io;
 		struct {
 		} debug;
 		/* KVM_EXIT_MMIO */
 		struct {
 			__u64 phys_addr;
 			__u8  data[8];
 			__u32 len;
 			__u8  is_write;
 		} mmio;
 		/* KVM_EXIT_HYPERCALL */
 		struct {
 			__u64 args[6];
 			__u64 ret;
 			__u32 longmode;
 			__u32 pad;
 		} hypercall;
 	};
 };

 /* 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;
 };

 /* for KVM_GET_FPU and KVM_SET_FPU */
 struct kvm_fpu {
 	__u8  fpr[8][16];
 	__u16 fcw;
 	__u16 fsw;
 	__u8  ftwx;  /* in fxsave format */
 	__u8  pad1;
 	__u16 last_opcode;
 	__u64 last_ip;
 	__u64 last_dp;
 	__u8  xmm[16][16];
 	__u32 mxcsr;
 	__u32 pad2;
 };

 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 */
 	__u64 linear_address;

 	/* out */
 	__u64 physical_address;
 	__u8  valid;
 	__u8  writeable;
 	__u8  usermode;
 	__u8  pad[5];
 };

 /* for KVM_INTERRUPT */
 struct kvm_interrupt {
 	/* in */
 	__u32 irq;
 };

 struct kvm_breakpoint {
 	__u32 enabled;
 	__u32 padding;
 	__u64 address;
 };

 /* for KVM_DEBUG_GUEST */
 struct kvm_debug_guest {
 	/* int */
 	__u32 enabled;
 	__u32 pad;
 	struct kvm_breakpoint breakpoints[4];
 	__u32 singlestep;
 };

 /* for KVM_GET_DIRTY_LOG */
 struct kvm_dirty_log {
 	__u32 slot;
 	__u32 padding;
 	union {
 		void __user *dirty_bitmap; /* one bit per page */
 		__u64 padding;
 	};
 };

 struct kvm_cpuid_entry {
 	__u32 function;
 	__u32 eax;
 	__u32 ebx;
 	__u32 ecx;
 	__u32 edx;
 	__u32 padding;
 };

 /* for KVM_SET_CPUID */
 struct kvm_cpuid {
 	__u32 nent;
 	__u32 padding;
 	struct kvm_cpuid_entry entries[0];
 };

 /* for KVM_SET_SIGNAL_MASK */
 struct kvm_signal_mask {
 	__u32 len;
 	__u8  sigset[0];
 };

 #define KVMIO 0xAE

 /*
  * ioctls for /dev/kvm fds:
  */
 #define KVM_GET_API_VERSION       _IO(KVMIO,   0x00)
 #define KVM_CREATE_VM             _IO(KVMIO,   0x01) /* returns a VM fd */
 #define KVM_GET_MSR_INDEX_LIST    _IOWR(KVMIO, 0x02, struct kvm_msr_list)
 /*
  * Check if a kvm extension is available.  Argument is extension number,
  * 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 */

 /*
  * ioctls for VM fds
  */
 #define KVM_SET_MEMORY_REGION     _IOW(KVMIO, 0x40, struct kvm_memory_region)
 /*
  * 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)

 /*
  * ioctls for vcpu fds
  */
 #define KVM_RUN                   _IO(KVMIO,   0x80)
 #define KVM_GET_REGS              _IOR(KVMIO,  0x81, struct kvm_regs)
 #define KVM_SET_REGS              _IOW(KVMIO,  0x82, struct kvm_regs)
 #define KVM_GET_SREGS             _IOR(KVMIO,  0x83, struct kvm_sregs)
 #define KVM_SET_SREGS             _IOW(KVMIO,  0x84, struct kvm_sregs)
 #define KVM_TRANSLATE             _IOWR(KVMIO, 0x85, struct kvm_translation)
 #define KVM_INTERRUPT             _IOW(KVMIO,  0x86, struct kvm_interrupt)
 #define KVM_DEBUG_GUEST           _IOW(KVMIO,  0x87, struct kvm_debug_guest)
 #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)

 #endif
	#ifndef __LINUX_KVM_H
	#define __LINUX_KVM_H

	/*
	* Userspace interface for /dev/kvm - kernel based virtual machine
	*
	* Note: this interface is considered experimental and may change without
	* notice.
	*/

	#include <asm/types.h>
	#include <linux/ioctl.h>

	#define KVM_API_VERSION 12

	/*
	* 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))


	/* for KVM_CREATE_MEMORY_REGION */
	struct kvm_memory_region {
	__u32 slot;
	__u32 flags;
	__u64 guest_phys_addr;
	__u64 memory_size; /* bytes */
	};

	/* for kvm_memory_region::flags */
	#define KVM_MEM_LOG_DIRTY_PAGES 1UL

	struct kvm_memory_alias {
	__u32 slot; /* this has a different namespace than memory slots */
	__u32 flags;
	__u64 guest_phys_addr;
	__u64 memory_size;
	__u64 target_phys_addr;
	};

	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_RUN, returned by mmap(vcpu_fd, offset=0) */
	struct kvm_run {
	/* in */
	__u8 request_interrupt_window;
	__u8 padding1[7];

	/* out */
	__u32 exit_reason;
	__u8 ready_for_interrupt_injection;
	__u8 if_flag;
	__u8 padding2[2];

	/* in (pre_kvm_run), out (post_kvm_run) */
	__u64 cr8;
	__u64 apic_base;

	union {
	/* KVM_EXIT_UNKNOWN */
	struct {
	__u64 hardware_exit_reason;
	} hw;
	/* KVM_EXIT_FAIL_ENTRY */
	struct {
	__u64 hardware_entry_failure_reason;
	} fail_entry;
	/* KVM_EXIT_EXCEPTION */
	struct {
	__u32 exception;
	__u32 error_code;
	} ex;
	/* KVM_EXIT_IO */
	struct kvm_io {
	#define KVM_EXIT_IO_IN 0
	#define KVM_EXIT_IO_OUT 1
	__u8 direction;
	__u8 size; /* bytes */
	__u16 port;
	__u32 count;
	__u64 data_offset; /* relative to kvm_run start */
	} io;
	struct {
	} debug;
	/* KVM_EXIT_MMIO */
	struct {
	__u64 phys_addr;
	__u8 data[8];
	__u32 len;
	__u8 is_write;
	} mmio;
	/* KVM_EXIT_HYPERCALL */
	struct {
	__u64 args[6];
	__u64 ret;
	__u32 longmode;
	__u32 pad;
	} hypercall;
	};
	};

	/* 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;
	};

	/* for KVM_GET_FPU and KVM_SET_FPU */
	struct kvm_fpu {
	__u8 fpr[8][16];
	__u16 fcw;
	__u16 fsw;
	__u8 ftwx; /* in fxsave format */
	__u8 pad1;
	__u16 last_opcode;
	__u64 last_ip;
	__u64 last_dp;
	__u8 xmm[16][16];
	__u32 mxcsr;
	__u32 pad2;
	};

	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 */
	__u64 linear_address;

	/* out */
	__u64 physical_address;
	__u8 valid;
	__u8 writeable;
	__u8 usermode;
	__u8 pad[5];
	};

	/* for KVM_INTERRUPT */
	struct kvm_interrupt {
	/* in */
	__u32 irq;
	};

	struct kvm_breakpoint {
	__u32 enabled;
	__u32 padding;
	__u64 address;
	};

	/* for KVM_DEBUG_GUEST */
	struct kvm_debug_guest {
	/* int */
	__u32 enabled;
	__u32 pad;
	struct kvm_breakpoint breakpoints[4];
	__u32 singlestep;
	};

	/* for KVM_GET_DIRTY_LOG */
	struct kvm_dirty_log {
	__u32 slot;
	__u32 padding;
	union {
	void __user dirty_bitmap; / one bit per page */
	__u64 padding;
	};
	};

	struct kvm_cpuid_entry {
	__u32 function;
	__u32 eax;
	__u32 ebx;
	__u32 ecx;
	__u32 edx;
	__u32 padding;
	};

	/* for KVM_SET_CPUID */
	struct kvm_cpuid {
	__u32 nent;
	__u32 padding;
	struct kvm_cpuid_entry entries[0];
	};

	/* for KVM_SET_SIGNAL_MASK */
	struct kvm_signal_mask {
	__u32 len;
	__u8 sigset[0];
	};

	#define KVMIO 0xAE

	/*
	* ioctls for /dev/kvm fds:
	*/
	#define KVM_GET_API_VERSION _IO(KVMIO, 0x00)
	#define KVM_CREATE_VM _IO(KVMIO, 0x01) /* returns a VM fd */
	#define KVM_GET_MSR_INDEX_LIST _IOWR(KVMIO, 0x02, struct kvm_msr_list)
	/*
	* Check if a kvm extension is available. Argument is extension number,
	* 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 */

	/*
	* ioctls for VM fds
	*/
	#define KVM_SET_MEMORY_REGION _IOW(KVMIO, 0x40, struct kvm_memory_region)
	/*
	* 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)

	/*
	* ioctls for vcpu fds
	*/
	#define KVM_RUN _IO(KVMIO, 0x80)
	#define KVM_GET_REGS _IOR(KVMIO, 0x81, struct kvm_regs)
	#define KVM_SET_REGS _IOW(KVMIO, 0x82, struct kvm_regs)
	#define KVM_GET_SREGS _IOR(KVMIO, 0x83, struct kvm_sregs)
	#define KVM_SET_SREGS _IOW(KVMIO, 0x84, struct kvm_sregs)
	#define KVM_TRANSLATE _IOWR(KVMIO, 0x85, struct kvm_translation)
	#define KVM_INTERRUPT _IOW(KVMIO, 0x86, struct kvm_interrupt)
	#define KVM_DEBUG_GUEST _IOW(KVMIO, 0x87, struct kvm_debug_guest)
	#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)

	#endif