<commit_before>#ifndef __LINUX_KVM_H
#define __LINUX_KVM_H

/*
 * Userspace interface for /dev/kvm - kernel based virtual machine
 *
 * Note: you must update KVM_API_VERSION if you change this interface.
 */

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

#define KVM_API_VERSION 12

/* for KVM_TRACE_ENABLE */
struct kvm_user_trace_setup {
	__u32 buf_size; /* sub_buffer size of each per-cpu */
	__u32 buf_nr; /* the number of sub_buffers of each per-cpu */
};

/* for KVM_CREATE_MEMORY_REGION */
struct kvm_memory_region {
	__u32 slot;
	__u32 flags;
	__u64 guest_phys_addr;
	__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


/* 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..
	 */
	union {
		__u32 irq;
		__s32 status;
	};
	__u32 level;
};


struct kvm_irqchip {
	__u32 chip_id;
	__u32 pad;
        union {
		char dummy[512];  /* reserving space */
#ifdef __KVM_HAVE_PIT
		struct kvm_pic_state pic;
#endif
#ifdef __KVM_HAVE_IOAPIC
		struct kvm_ioapic_state ioapic;
#endif
	} chip;
};

/* for KVM_CREATE_PIT2 */
struct kvm_pit_config {
	__u32 flags;
	__u32 pad[15];
};

#define KVM_PIT_SPEAKER_DUMMY     1

#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
#define KVM_EXIT_S390_SIEIC       13
#define KVM_EXIT_S390_RESET       14
#define KVM_EXIT_DCR              15
#define KVM_EXIT_NMI              16

/* 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 {
#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 {
			struct kvm_debug_exit_arch arch;
		} debug;
		/* KVM_EXIT_MMIO */
		struct {
			__u64 phys_addr;
			__u8  data[8];
			__u32 len;
			__u8  is_write;
		} 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;
		/* KVM_EXIT_S390_SIEIC */
		struct {
			__u8 icptcode;
			__u64 mask; /* psw upper half */
			__u64 addr; /* psw lower half */
			__u16 ipa;
			__u32 ipb;
		} s390_sieic;
		/* KVM_EXIT_S390_RESET */
#define KVM_S390_RESET_POR       1
#define KVM_S390_RESET_CLEAR     2
#define KVM_S390_RESET_SUBSYSTEM 4
#define KVM_S390_RESET_CPU_INIT  8
#define KVM_S390_RESET_IPL       16
		__u64 s390_reset_flags;
		/* KVM_EXIT_DCR */
		struct {
			__u32 dcrn;
			__u32 data;
			__u8  is_write;
		} dcr;
		/* Fix the size of the union. */
		char padding[256];
	};
};

/* for KVM_REGISTER_COALESCED_MMIO / KVM_UNREGISTER_COALESCED_MMIO */

struct kvm_coalesced_mmio_zone {
	__u64 addr;
	__u32 size;
	__u32 pad;
};

struct kvm_coalesced_mmio {
	__u64 phys_addr;
	__u32 len;
	__u32 pad;
	__u8  data[8];
};

struct kvm_coalesced_mmio_ring {
	__u32 first, last;
	struct kvm_coalesced_mmio coalesced_mmio[0];
};

#define KVM_COALESCED_MMIO_MAX \
	((PAGE_SIZE - sizeof(struct kvm_coalesced_mmio_ring)) / \
	 sizeof(struct kvm_coalesced_mmio))

/* 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;
};

/* for KVM_GET_DIRTY_LOG */
struct kvm_dirty_log {
	__u32 slot;
	__u32 padding1;
	union {
		void __user *dirty_bitmap; /* one bit per page */
		__u64 padding2;
	};
};

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

/* for KVM_SET_MPSTATE */

#define KVM_MP_STATE_RUNNABLE          0
#define KVM_MP_STATE_UNINITIALIZED     1
#define KVM_MP_STATE_INIT_RECEIVED     2
#define KVM_MP_STATE_HALTED            3
#define KVM_MP_STATE_SIPI_RECEIVED     4

struct kvm_mp_state {
	__u32 mp_state;
};

struct kvm_s390_psw {
	__u64 mask;
	__u64 addr;
};

/* valid values for type in kvm_s390_interrupt */
#define KVM_S390_SIGP_STOP		0xfffe0000u
#define KVM_S390_PROGRAM_INT		0xfffe0001u
#define KVM_S390_SIGP_SET_PREFIX	0xfffe0002u
#define KVM_S390_RESTART		0xfffe0003u
#define KVM_S390_INT_VIRTIO		0xffff2603u
#define KVM_S390_INT_SERVICE		0xffff2401u
#define KVM_S390_INT_EMERGENCY		0xffff1201u

struct kvm_s390_interrupt {
	__u32 type;
	__u32 parm;
	__u64 parm64;
};

/* for KVM_SET_GUEST_DEBUG */

#define KVM_GUESTDBG_ENABLE		0x00000001
#define KVM_GUESTDBG_SINGLESTEP		0x00000002

struct kvm_guest_debug {
	__u32 control;
	__u32 pad;
	struct kvm_guest_debug_arch arch;
};

#define KVM_TRC_SHIFT           16
/*
 * kvm trace categories
 */
#define KVM_TRC_ENTRYEXIT       (1 << KVM_TRC_SHIFT)
#define KVM_TRC_HANDLER         (1 << (KVM_TRC_SHIFT + 1)) /* only 12 bits */

/*
 * kvm trace action
 */
#define KVM_TRC_VMENTRY         (KVM_TRC_ENTRYEXIT + 0x01)
#define KVM_TRC_VMEXIT          (KVM_TRC_ENTRYEXIT + 0x02)
#define KVM_TRC_PAGE_FAULT      (KVM_TRC_HANDLER + 0x01)

#define KVM_TRC_HEAD_SIZE       12
#define KVM_TRC_CYCLE_SIZE      8
#define KVM_TRC_EXTRA_MAX       7

/* This structure represents a single trace buffer record. */
struct kvm_trace_rec {
	/* variable rec_val
	 * is split into:
	 * bits 0 - 27  -> event id
	 * bits 28 -30  -> number of extra data args of size u32
	 * bits 31      -> binary indicator for if tsc is in record
	 */
	__u32 rec_val;
	__u32 pid;
	__u32 vcpu_id;
	union {
		struct {
			__u64 timestamp;
			__u32 extra_u32[KVM_TRC_EXTRA_MAX];
		} __attribute__((packed)) timestamp;
		struct {
			__u32 extra_u32[KVM_TRC_EXTRA_MAX];
		} notimestamp;
	} u;
};

#define TRACE_REC_EVENT_ID(val) \
		(0x0fffffff & (val))
#define TRACE_REC_NUM_DATA_ARGS(val) \
		(0x70000000 & ((val) << 28))
#define TRACE_REC_TCS(val) \
		(0x80000000 & ((val) << 31))

#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)

#define KVM_S390_ENABLE_SIE       _IO(KVMIO,   0x06)
/*
 * 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 */
#define KVM_GET_SUPPORTED_CPUID   _IOWR(KVMIO, 0x05, struct kvm_cpuid2)
/*
 * ioctls for kvm trace
 */
#define KVM_TRACE_ENABLE          _IOW(KVMIO, 0x06, struct kvm_user_trace_setup)
#define KVM_TRACE_PAUSE           _IO(KVMIO,  0x07)
#define KVM_TRACE_DISABLE         _IO(KVMIO,  0x08)
/*
 * 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
#define KVM_CAP_MP_STATE 14
#define KVM_CAP_COALESCED_MMIO 15
#define KVM_CAP_SYNC_MMU 16  /* Changes to host mmap are reflected in guest */
#ifdef __KVM_HAVE_DEVICE_ASSIGNMENT
#define KVM_CAP_DEVICE_ASSIGNMENT 17
#endif
#define KVM_CAP_IOMMU 18
#ifdef __KVM_HAVE_MSI
#define KVM_CAP_DEVICE_MSI 20
#endif
/* Bug in KVM_SET_USER_MEMORY_REGION fixed: */
#define KVM_CAP_DESTROY_MEMORY_REGION_WORKS 21
#ifdef __KVM_HAVE_USER_NMI
#define KVM_CAP_USER_NMI 22
#endif
#ifdef __KVM_HAVE_GUEST_DEBUG
#define KVM_CAP_SET_GUEST_DEBUG 23
#endif
#ifdef __KVM_HAVE_PIT
#define KVM_CAP_REINJECT_CONTROL 24
#endif
#ifdef __KVM_HAVE_IOAPIC
#define KVM_CAP_IRQ_ROUTING 25
#endif
#define KVM_CAP_IRQ_INJECT_STATUS 26
#ifdef __KVM_HAVE_DEVICE_ASSIGNMENT
#define KVM_CAP_DEVICE_DEASSIGNMENT 27
#endif
#ifdef __KVM_HAVE_MSIX
#define KVM_CAP_DEVICE_MSIX 28
#endif
#define KVM_CAP_ASSIGN_DEV_IRQ 29
/* Another bug in KVM_SET_USER_MEMORY_REGION fixed: */
#define KVM_CAP_JOIN_MEMORY_REGIONS_WORKS 30
#ifdef __KVM_HAVE_MCE
#define KVM_CAP_MCE 31
#endif
#define KVM_CAP_IRQFD 32
#ifdef __KVM_HAVE_PIT
#define KVM_CAP_PIT2 33
#endif

#ifdef KVM_CAP_IRQ_ROUTING

struct kvm_irq_routing_irqchip {
	__u32 irqchip;
	__u32 pin;
};

struct kvm_irq_routing_msi {
	__u32 address_lo;
	__u32 address_hi;
	__u32 data;
	__u32 pad;
};

/* gsi routing entry types */
#define KVM_IRQ_ROUTING_IRQCHIP 1
#define KVM_IRQ_ROUTING_MSI 2

struct kvm_irq_routing_entry {
	__u32 gsi;
	__u32 type;
	__u32 flags;
	__u32 pad;
	union {
		struct kvm_irq_routing_irqchip irqchip;
		struct kvm_irq_routing_msi msi;
		__u32 pad[8];
	} u;
};

struct kvm_irq_routing {
	__u32 nr;
	__u32 flags;
	struct kvm_irq_routing_entry entries[0];
};

#endif

#ifdef KVM_CAP_MCE
/* x86 MCE */
struct kvm_x86_mce {
	__u64 status;
	__u64 addr;
	__u64 misc;
	__u64 mcg_status;
	__u8 bank;
	__u8 pad1[7];
	__u64 pad2[3];
};
#endif

#define KVM_IRQFD_FLAG_DEASSIGN (1 << 0)

struct kvm_irqfd {
	__u32 fd;
	__u32 gsi;
	__u32 flags;
	__u8  pad[20];
};

/*
 * 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)
#define KVM_IRQ_LINE_STATUS	  _IOWR(KVMIO, 0x67, struct kvm_irq_level)
#define KVM_REGISTER_COALESCED_MMIO \
			_IOW(KVMIO,  0x67, struct kvm_coalesced_mmio_zone)
#define KVM_UNREGISTER_COALESCED_MMIO \
			_IOW(KVMIO,  0x68, struct kvm_coalesced_mmio_zone)
#define KVM_ASSIGN_PCI_DEVICE _IOR(KVMIO, 0x69, \
				   struct kvm_assigned_pci_dev)
#define KVM_SET_GSI_ROUTING       _IOW(KVMIO, 0x6a, struct kvm_irq_routing)
/* deprecated, replaced by KVM_ASSIGN_DEV_IRQ */
#define KVM_ASSIGN_IRQ _IOR(KVMIO, 0x70, \
			    struct kvm_assigned_irq)
#define KVM_ASSIGN_DEV_IRQ        _IOW(KVMIO, 0x70, struct kvm_assigned_irq)
#define KVM_REINJECT_CONTROL      _IO(KVMIO, 0x71)<commit_msg>KVM: Reorder ioctls in kvm.h<commit_after>#ifndef __LINUX_KVM_H
#define __LINUX_KVM_H

/*
 * Userspace interface for /dev/kvm - kernel based virtual machine
 *
 * Note: you must update KVM_API_VERSION if you change this interface.
 */

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

#define KVM_API_VERSION 12

/* for KVM_TRACE_ENABLE */
struct kvm_user_trace_setup {
	__u32 buf_size; /* sub_buffer size of each per-cpu */
	__u32 buf_nr; /* the number of sub_buffers of each per-cpu */
};

/* for KVM_CREATE_MEMORY_REGION */
struct kvm_memory_region {
	__u32 slot;
	__u32 flags;
	__u64 guest_phys_addr;
	__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


/* 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..
	 */
	union {
		__u32 irq;
		__s32 status;
	};
	__u32 level;
};


struct kvm_irqchip {
	__u32 chip_id;
	__u32 pad;
        union {
		char dummy[512];  /* reserving space */
#ifdef __KVM_HAVE_PIT
		struct kvm_pic_state pic;
#endif
#ifdef __KVM_HAVE_IOAPIC
		struct kvm_ioapic_state ioapic;
#endif
	} chip;
};

/* for KVM_CREATE_PIT2 */
struct kvm_pit_config {
	__u32 flags;
	__u32 pad[15];
};

#define KVM_PIT_SPEAKER_DUMMY     1

#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
#define KVM_EXIT_S390_SIEIC       13
#define KVM_EXIT_S390_RESET       14
#define KVM_EXIT_DCR              15
#define KVM_EXIT_NMI              16

/* 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 {
#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 {
			struct kvm_debug_exit_arch arch;
		} debug;
		/* KVM_EXIT_MMIO */
		struct {
			__u64 phys_addr;
			__u8  data[8];
			__u32 len;
			__u8  is_write;
		} 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;
		/* KVM_EXIT_S390_SIEIC */
		struct {
			__u8 icptcode;
			__u64 mask; /* psw upper half */
			__u64 addr; /* psw lower half */
			__u16 ipa;
			__u32 ipb;
		} s390_sieic;
		/* KVM_EXIT_S390_RESET */
#define KVM_S390_RESET_POR       1
#define KVM_S390_RESET_CLEAR     2
#define KVM_S390_RESET_SUBSYSTEM 4
#define KVM_S390_RESET_CPU_INIT  8
#define KVM_S390_RESET_IPL       16
		__u64 s390_reset_flags;
		/* KVM_EXIT_DCR */
		struct {
			__u32 dcrn;
			__u32 data;
			__u8  is_write;
		} dcr;
		/* Fix the size of the union. */
		char padding[256];
	};
};

/* for KVM_REGISTER_COALESCED_MMIO / KVM_UNREGISTER_COALESCED_MMIO */

struct kvm_coalesced_mmio_zone {
	__u64 addr;
	__u32 size;
	__u32 pad;
};

struct kvm_coalesced_mmio {
	__u64 phys_addr;
	__u32 len;
	__u32 pad;
	__u8  data[8];
};

struct kvm_coalesced_mmio_ring {
	__u32 first, last;
	struct kvm_coalesced_mmio coalesced_mmio[0];
};

#define KVM_COALESCED_MMIO_MAX \
	((PAGE_SIZE - sizeof(struct kvm_coalesced_mmio_ring)) / \
	 sizeof(struct kvm_coalesced_mmio))

/* 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;
};

/* for KVM_GET_DIRTY_LOG */
struct kvm_dirty_log {
	__u32 slot;
	__u32 padding1;
	union {
		void __user *dirty_bitmap; /* one bit per page */
		__u64 padding2;
	};
};

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

/* for KVM_SET_MPSTATE */

#define KVM_MP_STATE_RUNNABLE          0
#define KVM_MP_STATE_UNINITIALIZED     1
#define KVM_MP_STATE_INIT_RECEIVED     2
#define KVM_MP_STATE_HALTED            3
#define KVM_MP_STATE_SIPI_RECEIVED     4

struct kvm_mp_state {
	__u32 mp_state;
};

struct kvm_s390_psw {
	__u64 mask;
	__u64 addr;
};

/* valid values for type in kvm_s390_interrupt */
#define KVM_S390_SIGP_STOP		0xfffe0000u
#define KVM_S390_PROGRAM_INT		0xfffe0001u
#define KVM_S390_SIGP_SET_PREFIX	0xfffe0002u
#define KVM_S390_RESTART		0xfffe0003u
#define KVM_S390_INT_VIRTIO		0xffff2603u
#define KVM_S390_INT_SERVICE		0xffff2401u
#define KVM_S390_INT_EMERGENCY		0xffff1201u

struct kvm_s390_interrupt {
	__u32 type;
	__u32 parm;
	__u64 parm64;
};

/* for KVM_SET_GUEST_DEBUG */

#define KVM_GUESTDBG_ENABLE		0x00000001
#define KVM_GUESTDBG_SINGLESTEP		0x00000002

struct kvm_guest_debug {
	__u32 control;
	__u32 pad;
	struct kvm_guest_debug_arch arch;
};

#define KVM_TRC_SHIFT           16
/*
 * kvm trace categories
 */
#define KVM_TRC_ENTRYEXIT       (1 << KVM_TRC_SHIFT)
#define KVM_TRC_HANDLER         (1 << (KVM_TRC_SHIFT + 1)) /* only 12 bits */

/*
 * kvm trace action
 */
#define KVM_TRC_VMENTRY         (KVM_TRC_ENTRYEXIT + 0x01)
#define KVM_TRC_VMEXIT          (KVM_TRC_ENTRYEXIT + 0x02)
#define KVM_TRC_PAGE_FAULT      (KVM_TRC_HANDLER + 0x01)

#define KVM_TRC_HEAD_SIZE       12
#define KVM_TRC_CYCLE_SIZE      8
#define KVM_TRC_EXTRA_MAX       7

/* This structure represents a single trace buffer record. */
struct kvm_trace_rec {
	/* variable rec_val
	 * is split into:
	 * bits 0 - 27  -> event id
	 * bits 28 -30  -> number of extra data args of size u32
	 * bits 31      -> binary indicator for if tsc is in record
	 */
	__u32 rec_val;
	__u32 pid;
	__u32 vcpu_id;
	union {
		struct {
			__u64 timestamp;
			__u32 extra_u32[KVM_TRC_EXTRA_MAX];
		} __attribute__((packed)) timestamp;
		struct {
			__u32 extra_u32[KVM_TRC_EXTRA_MAX];
		} notimestamp;
	} u;
};

#define TRACE_REC_EVENT_ID(val) \
		(0x0fffffff & (val))
#define TRACE_REC_NUM_DATA_ARGS(val) \
		(0x70000000 & ((val) << 28))
#define TRACE_REC_TCS(val) \
		(0x80000000 & ((val) << 31))

#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)

#define KVM_S390_ENABLE_SIE       _IO(KVMIO,   0x06)
/*
 * 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 */
#define KVM_GET_SUPPORTED_CPUID   _IOWR(KVMIO, 0x05, struct kvm_cpuid2)
/*
 * ioctls for kvm trace
 */
#define KVM_TRACE_ENABLE          _IOW(KVMIO, 0x06, struct kvm_user_trace_setup)
#define KVM_TRACE_PAUSE           _IO(KVMIO,  0x07)
#define KVM_TRACE_DISABLE         _IO(KVMIO,  0x08)
/*
 * 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
#define KVM_CAP_MP_STATE 14
#define KVM_CAP_COALESCED_MMIO 15
#define KVM_CAP_SYNC_MMU 16  /* Changes to host mmap are reflected in guest */
#ifdef __KVM_HAVE_DEVICE_ASSIGNMENT
#define KVM_CAP_DEVICE_ASSIGNMENT 17
#endif
#define KVM_CAP_IOMMU 18
#ifdef __KVM_HAVE_MSI
#define KVM_CAP_DEVICE_MSI 20
#endif
/* Bug in KVM_SET_USER_MEMORY_REGION fixed: */
#define KVM_CAP_DESTROY_MEMORY_REGION_WORKS 21
#ifdef __KVM_HAVE_USER_NMI
#define KVM_CAP_USER_NMI 22
#endif
#ifdef __KVM_HAVE_GUEST_DEBUG
#define KVM_CAP_SET_GUEST_DEBUG 23
#endif
#ifdef __KVM_HAVE_PIT
#define KVM_CAP_REINJECT_CONTROL 24
#endif
#ifdef __KVM_HAVE_IOAPIC
#define KVM_CAP_IRQ_ROUTING 25
#endif
#define KVM_CAP_IRQ_INJECT_STATUS 26
#ifdef __KVM_HAVE_DEVICE_ASSIGNMENT
#define KVM_CAP_DEVICE_DEASSIGNMENT 27
#endif
#ifdef __KVM_HAVE_MSIX
#define KVM_CAP_DEVICE_MSIX 28
#endif
#define KVM_CAP_ASSIGN_DEV_IRQ 29
/* Another bug in KVM_SET_USER_MEMORY_REGION fixed: */
#define KVM_CAP_JOIN_MEMORY_REGIONS_WORKS 30
#ifdef __KVM_HAVE_MCE
#define KVM_CAP_MCE 31
#endif
#define KVM_CAP_IRQFD 32
#ifdef __KVM_HAVE_PIT
#define KVM_CAP_PIT2 33
#endif

#ifdef KVM_CAP_IRQ_ROUTING

struct kvm_irq_routing_irqchip {
	__u32 irqchip;
	__u32 pin;
};

struct kvm_irq_routing_msi {
	__u32 address_lo;
	__u32 address_hi;
	__u32 data;
	__u32 pad;
};

/* gsi routing entry types */
#define KVM_IRQ_ROUTING_IRQCHIP 1
#define KVM_IRQ_ROUTING_MSI 2

struct kvm_irq_routing_entry {
	__u32 gsi;
	__u32 type;
	__u32 flags;
	__u32 pad;
	union {
		struct kvm_irq_routing_irqchip irqchip;
		struct kvm_irq_routing_msi msi;
		__u32 pad[8];
	} u;
};

struct kvm_irq_routing {
	__u32 nr;
	__u32 flags;
	struct kvm_irq_routing_entry entries[0];
};

#endif

#ifdef KVM_CAP_MCE
/* x86 MCE */
struct kvm_x86_mce {
	__u64 status;
	__u64 addr;
	__u64 misc;
	__u64 mcg_status;
	__u8 bank;
	__u8 pad1[7];
	__u64 pad2[3];
};
#endif

#define KVM_IRQFD_FLAG_DEASSIGN (1 << 0)

struct kvm_irqfd {
	__u32 fd;
	__u32 gsi;
	__u32 flags;
	__u8  pad[20];
};

/*
 * 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)
#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)
/* 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)
#define KVM_IRQ_LINE_STATUS	  _IOWR(KVMIO, 0x67, struct kvm_irq_level)
#define KVM_REGISTER_COALESCED_MMIO \
			_IOW(KVMIO,  0x67, struct kvm_coalesced_mmio_zone)
#define KVM_UNREGISTER_COALESCED_MMIO \
			_IOW(KVMIO,  0x68, struct kvm_coalesced_mmio_zone)
#define KVM_ASSIGN_PCI_DEVICE _IOR(KVMIO, 0x69, \
				   struct kvm_assigned_pci_dev)
#define KVM_SET_GSI_ROUTING       _IOW(KVMIO, 0x6a, struct kvm_irq_routing)
/* deprecated, replaced by KVM_ASSIGN_DEV_IRQ */
#define KVM_ASSIGN_IRQ _IOR(KVMIO, 0x70, \
			    struct kvm_assigned_irq)
#define KVM_ASSIGN_DEV_IRQ        _IOW(KVMIO, 0x70, struct kvm_assigned_irq)
#define KVM_REINJECT_CONTROL      _IO(KVMIO, 0x71)
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