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32 results

kvm.h

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  • kvm.h 42.74 KiB
    /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
    #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
    
    /* *** Deprecated interfaces *** */
    
    #define KVM_TRC_SHIFT           16
    
    #define KVM_TRC_ENTRYEXIT       (1 << KVM_TRC_SHIFT)
    #define KVM_TRC_HANDLER         (1 << (KVM_TRC_SHIFT + 1))
    
    #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
    
    #define KVM_TRC_INJ_VIRQ         (KVM_TRC_HANDLER + 0x02)
    #define KVM_TRC_REDELIVER_EVT    (KVM_TRC_HANDLER + 0x03)
    #define KVM_TRC_PEND_INTR        (KVM_TRC_HANDLER + 0x04)
    #define KVM_TRC_IO_READ          (KVM_TRC_HANDLER + 0x05)
    #define KVM_TRC_IO_WRITE         (KVM_TRC_HANDLER + 0x06)
    #define KVM_TRC_CR_READ          (KVM_TRC_HANDLER + 0x07)
    #define KVM_TRC_CR_WRITE         (KVM_TRC_HANDLER + 0x08)
    #define KVM_TRC_DR_READ          (KVM_TRC_HANDLER + 0x09)
    #define KVM_TRC_DR_WRITE         (KVM_TRC_HANDLER + 0x0A)
    #define KVM_TRC_MSR_READ         (KVM_TRC_HANDLER + 0x0B)
    #define KVM_TRC_MSR_WRITE        (KVM_TRC_HANDLER + 0x0C)
    #define KVM_TRC_CPUID            (KVM_TRC_HANDLER + 0x0D)
    #define KVM_TRC_INTR             (KVM_TRC_HANDLER + 0x0E)
    #define KVM_TRC_NMI              (KVM_TRC_HANDLER + 0x0F)
    #define KVM_TRC_VMMCALL          (KVM_TRC_HANDLER + 0x10)
    #define KVM_TRC_HLT              (KVM_TRC_HANDLER + 0x11)
    #define KVM_TRC_CLTS             (KVM_TRC_HANDLER + 0x12)
    #define KVM_TRC_LMSW             (KVM_TRC_HANDLER + 0x13)
    #define KVM_TRC_APIC_ACCESS      (KVM_TRC_HANDLER + 0x14)
    #define KVM_TRC_TDP_FAULT        (KVM_TRC_HANDLER + 0x15)
    #define KVM_TRC_GTLB_WRITE       (KVM_TRC_HANDLER + 0x16)
    #define KVM_TRC_STLB_WRITE       (KVM_TRC_HANDLER + 0x17)
    #define KVM_TRC_STLB_INVAL       (KVM_TRC_HANDLER + 0x18)
    #define KVM_TRC_PPC_INSTR        (KVM_TRC_HANDLER + 0x19)
    
    struct kvm_user_trace_setup {
    	__u32 buf_size;
    	__u32 buf_nr;
    };
    
    #define __KVM_DEPRECATED_MAIN_W_0x06 \
    	_IOW(KVMIO, 0x06, struct kvm_user_trace_setup)
    #define __KVM_DEPRECATED_MAIN_0x07 _IO(KVMIO, 0x07)
    #define __KVM_DEPRECATED_MAIN_0x08 _IO(KVMIO, 0x08)
    
    #define __KVM_DEPRECATED_VM_R_0x70 _IOR(KVMIO, 0x70, struct kvm_assigned_irq)
    
    struct kvm_breakpoint {
    	__u32 enabled;
    	__u32 padding;
    	__u64 address;
    };
    
    struct kvm_debug_guest {
    	__u32 enabled;
    	__u32 pad;
    	struct kvm_breakpoint breakpoints[4];
    	__u32 singlestep;
    };
    
    #define __KVM_DEPRECATED_VCPU_W_0x87 _IOW(KVMIO, 0x87, struct kvm_debug_guest)
    
    /* *** End of deprecated interfaces *** */
    
    
    /* 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 */
    };
    
    /*
     * The bit 0 ~ bit 15 of kvm_memory_region::flags are visible for userspace,
     * other bits are reserved for kvm internal use which are defined in
     * include/linux/kvm_host.h.
     */
    #define KVM_MEM_LOG_DIRTY_PAGES	(1UL << 0)
    #define KVM_MEM_READONLY	(1UL << 1)
    
    /* 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..
    	 * For ARM: See Documentation/virtual/kvm/api.txt
    	 */
    	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
    
    struct kvm_s390_skeys {
    	__u64 start_gfn;
    	__u64 count;
    	__u64 skeydata_addr;
    	__u32 flags;
    	__u32 reserved[9];
    };
    
    #define KVM_S390_CMMA_PEEK (1 << 0)
    
    /**
     * kvm_s390_cmma_log - Used for CMMA migration.
     *
     * Used both for input and output.
     *
     * @start_gfn: Guest page number to start from.
     * @count: Size of the result buffer.
     * @flags: Control operation mode via KVM_S390_CMMA_* flags
     * @remaining: Used with KVM_S390_GET_CMMA_BITS. Indicates how many dirty
     *             pages are still remaining.
     * @mask: Used with KVM_S390_SET_CMMA_BITS. Bitmap of bits to actually set
     *        in the PGSTE.
     * @values: Pointer to the values buffer.
     *
     * Used in KVM_S390_{G,S}ET_CMMA_BITS ioctls.
     */
    struct kvm_s390_cmma_log {
    	__u64 start_gfn;
    	__u32 count;
    	__u32 flags;
    	union {
    		__u64 remaining;
    		__u64 mask;
    	};
    	__u64 values;
    };
    
    struct kvm_hyperv_exit {
    #define KVM_EXIT_HYPERV_SYNIC          1
    #define KVM_EXIT_HYPERV_HCALL          2
    	__u32 type;
    	union {
    		struct {
    			__u32 msr;
    			__u64 control;
    			__u64 evt_page;
    			__u64 msg_page;
    		} synic;
    		struct {
    			__u64 input;
    			__u64 result;
    			__u64 params[2];
    		} hcall;
    	} u;
    };
    
    #define KVM_S390_GET_SKEYS_NONE   1
    #define KVM_S390_SKEYS_MAX        1048576
    
    #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 /* deprecated */
    #define KVM_EXIT_NMI              16
    #define KVM_EXIT_INTERNAL_ERROR   17
    #define KVM_EXIT_OSI              18
    #define KVM_EXIT_PAPR_HCALL	  19
    #define KVM_EXIT_S390_UCONTROL	  20
    #define KVM_EXIT_WATCHDOG         21
    #define KVM_EXIT_S390_TSCH        22
    #define KVM_EXIT_EPR              23
    #define KVM_EXIT_SYSTEM_EVENT     24
    #define KVM_EXIT_S390_STSI        25
    #define KVM_EXIT_IOAPIC_EOI       26
    #define KVM_EXIT_HYPERV           27
    
    /* For KVM_EXIT_INTERNAL_ERROR */
    /* Emulate instruction failed. */
    #define KVM_INTERNAL_ERROR_EMULATION	1
    /* Encounter unexpected simultaneous exceptions. */
    #define KVM_INTERNAL_ERROR_SIMUL_EX	2
    /* Encounter unexpected vm-exit due to delivery event. */
    #define KVM_INTERNAL_ERROR_DELIVERY_EV	3
    
    /* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */
    struct kvm_run {
    	/* in */
    	__u8 request_interrupt_window;
    	__u8 immediate_exit;
    	__u8 padding1[6];
    
    	/* out */
    	__u32 exit_reason;
    	__u8 ready_for_interrupt_injection;
    	__u8 if_flag;
    	__u16 flags;
    
    	/* in (pre_kvm_run), out (post_kvm_run) */
    	__u64 cr8;
    	__u64 apic_base;
    
    #ifdef __KVM_S390
    	/* the processor status word for s390 */
    	__u64 psw_mask; /* psw upper half */
    	__u64 psw_addr; /* psw lower half */
    #endif
    	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;
    		/* KVM_EXIT_DEBUG */
    		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;
    			__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_S390_UCONTROL */
    		struct {
    			__u64 trans_exc_code;
    			__u32 pgm_code;
    		} s390_ucontrol;
    		/* KVM_EXIT_DCR (deprecated) */
    		struct {
    			__u32 dcrn;
    			__u32 data;
    			__u8  is_write;
    		} dcr;
    		/* KVM_EXIT_INTERNAL_ERROR */
    		struct {
    			__u32 suberror;
    			/* Available with KVM_CAP_INTERNAL_ERROR_DATA: */
    			__u32 ndata;
    			__u64 data[16];
    		} internal;
    		/* KVM_EXIT_OSI */
    		struct {
    			__u64 gprs[32];
    		} osi;
    		/* KVM_EXIT_PAPR_HCALL */
    		struct {
    			__u64 nr;
    			__u64 ret;
    			__u64 args[9];
    		} papr_hcall;
    		/* KVM_EXIT_S390_TSCH */
    		struct {
    			__u16 subchannel_id;
    			__u16 subchannel_nr;
    			__u32 io_int_parm;
    			__u32 io_int_word;
    			__u32 ipb;
    			__u8 dequeued;
    		} s390_tsch;
    		/* KVM_EXIT_EPR */
    		struct {
    			__u32 epr;
    		} epr;
    		/* KVM_EXIT_SYSTEM_EVENT */
    		struct {
    #define KVM_SYSTEM_EVENT_SHUTDOWN       1
    #define KVM_SYSTEM_EVENT_RESET          2
    #define KVM_SYSTEM_EVENT_CRASH          3
    			__u32 type;
    			__u64 flags;
    		} system_event;
    		/* KVM_EXIT_S390_STSI */
    		struct {
    			__u64 addr;
    			__u8 ar;
    			__u8 reserved;
    			__u8 fc;
    			__u8 sel1;
    			__u16 sel2;
    		} s390_stsi;
    		/* KVM_EXIT_IOAPIC_EOI */
    		struct {
    			__u8 vector;
    		} eoi;
    		/* KVM_EXIT_HYPERV */
    		struct kvm_hyperv_exit hyperv;
    		/* Fix the size of the union. */
    		char padding[256];
    	};
    
    	/* 2048 is the size of the char array used to bound/pad the size
    	 * of the union that holds sync regs.
    	 */
    	#define SYNC_REGS_SIZE_BYTES 2048
    	/*
    	 * shared registers between kvm and userspace.
    	 * kvm_valid_regs specifies the register classes set by the host
    	 * kvm_dirty_regs specified the register classes dirtied by userspace
    	 * struct kvm_sync_regs is architecture specific, as well as the
    	 * bits for kvm_valid_regs and kvm_dirty_regs
    	 */
    	__u64 kvm_valid_regs;
    	__u64 kvm_dirty_regs;
    	union {
    		struct kvm_sync_regs regs;
    		char padding[SYNC_REGS_SIZE_BYTES];
    	} s;
    };
    
    /* 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_S390_MEM_OP */
    struct kvm_s390_mem_op {
    	/* in */
    	__u64 gaddr;		/* the guest address */
    	__u64 flags;		/* flags */
    	__u32 size;		/* amount of bytes */
    	__u32 op;		/* type of operation */
    	__u64 buf;		/* buffer in userspace */
    	__u8 ar;		/* the access register number */
    	__u8 reserved[31];	/* should be set to 0 */
    };
    /* types for kvm_s390_mem_op->op */
    #define KVM_S390_MEMOP_LOGICAL_READ	0
    #define KVM_S390_MEMOP_LOGICAL_WRITE	1
    /* flags for kvm_s390_mem_op->flags */
    #define KVM_S390_MEMOP_F_CHECK_ONLY		(1ULL << 0)
    #define KVM_S390_MEMOP_F_INJECT_EXCEPTION	(1ULL << 1)
    
    /* 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_MP_STATE */
    
    /* not all states are valid on all architectures */
    #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
    #define KVM_MP_STATE_STOPPED           5
    #define KVM_MP_STATE_CHECK_STOP        6
    #define KVM_MP_STATE_OPERATING         7
    #define KVM_MP_STATE_LOAD              8
    
    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_PFAULT_INIT	0xfffe0004u
    #define KVM_S390_INT_PFAULT_DONE	0xfffe0005u
    #define KVM_S390_MCHK			0xfffe1000u
    #define KVM_S390_INT_CLOCK_COMP		0xffff1004u
    #define KVM_S390_INT_CPU_TIMER		0xffff1005u
    #define KVM_S390_INT_VIRTIO		0xffff2603u
    #define KVM_S390_INT_SERVICE		0xffff2401u
    #define KVM_S390_INT_EMERGENCY		0xffff1201u
    #define KVM_S390_INT_EXTERNAL_CALL	0xffff1202u
    /* Anything below 0xfffe0000u is taken by INT_IO */
    #define KVM_S390_INT_IO(ai,cssid,ssid,schid)   \
    	(((schid)) |			       \
    	 ((ssid) << 16) |		       \
    	 ((cssid) << 18) |		       \
    	 ((ai) << 26))
    #define KVM_S390_INT_IO_MIN		0x00000000u
    #define KVM_S390_INT_IO_MAX		0xfffdffffu
    #define KVM_S390_INT_IO_AI_MASK		0x04000000u
    
    
    struct kvm_s390_interrupt {
    	__u32 type;
    	__u32 parm;
    	__u64 parm64;
    };
    
    struct kvm_s390_io_info {
    	__u16 subchannel_id;
    	__u16 subchannel_nr;
    	__u32 io_int_parm;
    	__u32 io_int_word;
    };
    
    struct kvm_s390_ext_info {
    	__u32 ext_params;
    	__u32 pad;
    	__u64 ext_params2;
    };
    
    struct kvm_s390_pgm_info {
    	__u64 trans_exc_code;
    	__u64 mon_code;
    	__u64 per_address;
    	__u32 data_exc_code;
    	__u16 code;
    	__u16 mon_class_nr;
    	__u8 per_code;
    	__u8 per_atmid;
    	__u8 exc_access_id;
    	__u8 per_access_id;
    	__u8 op_access_id;
    #define KVM_S390_PGM_FLAGS_ILC_VALID	0x01
    #define KVM_S390_PGM_FLAGS_ILC_0	0x02
    #define KVM_S390_PGM_FLAGS_ILC_1	0x04
    #define KVM_S390_PGM_FLAGS_ILC_MASK	0x06
    #define KVM_S390_PGM_FLAGS_NO_REWIND	0x08
    	__u8 flags;
    	__u8 pad[2];
    };
    
    struct kvm_s390_prefix_info {
    	__u32 address;
    };
    
    struct kvm_s390_extcall_info {
    	__u16 code;
    };
    
    struct kvm_s390_emerg_info {
    	__u16 code;
    };
    
    #define KVM_S390_STOP_FLAG_STORE_STATUS	0x01
    struct kvm_s390_stop_info {
    	__u32 flags;
    };
    
    struct kvm_s390_mchk_info {
    	__u64 cr14;
    	__u64 mcic;
    	__u64 failing_storage_address;
    	__u32 ext_damage_code;
    	__u32 pad;
    	__u8 fixed_logout[16];
    };
    
    struct kvm_s390_irq {
    	__u64 type;
    	union {
    		struct kvm_s390_io_info io;
    		struct kvm_s390_ext_info ext;
    		struct kvm_s390_pgm_info pgm;
    		struct kvm_s390_emerg_info emerg;
    		struct kvm_s390_extcall_info extcall;
    		struct kvm_s390_prefix_info prefix;
    		struct kvm_s390_stop_info stop;
    		struct kvm_s390_mchk_info mchk;
    		char reserved[64];
    	} u;
    };
    
    struct kvm_s390_irq_state {
    	__u64 buf;
    	__u32 flags;        /* will stay unused for compatibility reasons */
    	__u32 len;
    	__u32 reserved[4];  /* will stay unused for compatibility reasons */
    };
    
    /* 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;
    };
    
    enum {
    	kvm_ioeventfd_flag_nr_datamatch,
    	kvm_ioeventfd_flag_nr_pio,
    	kvm_ioeventfd_flag_nr_deassign,
    	kvm_ioeventfd_flag_nr_virtio_ccw_notify,
    	kvm_ioeventfd_flag_nr_fast_mmio,
    	kvm_ioeventfd_flag_nr_max,
    };
    
    #define KVM_IOEVENTFD_FLAG_DATAMATCH (1 << kvm_ioeventfd_flag_nr_datamatch)
    #define KVM_IOEVENTFD_FLAG_PIO       (1 << kvm_ioeventfd_flag_nr_pio)
    #define KVM_IOEVENTFD_FLAG_DEASSIGN  (1 << kvm_ioeventfd_flag_nr_deassign)
    #define KVM_IOEVENTFD_FLAG_VIRTIO_CCW_NOTIFY \
    	(1 << kvm_ioeventfd_flag_nr_virtio_ccw_notify)
    
    #define KVM_IOEVENTFD_VALID_FLAG_MASK  ((1 << kvm_ioeventfd_flag_nr_max) - 1)
    
    struct kvm_ioeventfd {
    	__u64 datamatch;
    	__u64 addr;        /* legal pio/mmio address */
    	__u32 len;         /* 1, 2, 4, or 8 bytes; or 0 to ignore length */
    	__s32 fd;
    	__u32 flags;
    	__u8  pad[36];
    };
    
    #define KVM_X86_DISABLE_EXITS_MWAIT          (1 << 0)
    #define KVM_X86_DISABLE_EXITS_HTL            (1 << 1)
    #define KVM_X86_DISABLE_EXITS_PAUSE          (1 << 2)
    #define KVM_X86_DISABLE_VALID_EXITS          (KVM_X86_DISABLE_EXITS_MWAIT | \
                                                  KVM_X86_DISABLE_EXITS_HTL | \
                                                  KVM_X86_DISABLE_EXITS_PAUSE)
    
    /* for KVM_ENABLE_CAP */
    struct kvm_enable_cap {
    	/* in */
    	__u32 cap;
    	__u32 flags;
    	__u64 args[4];
    	__u8  pad[64];
    };
    
    /* for KVM_PPC_GET_PVINFO */
    
    #define KVM_PPC_PVINFO_FLAGS_EV_IDLE   (1<<0)
    
    struct kvm_ppc_pvinfo {
    	/* out */
    	__u32 flags;
    	__u32 hcall[4];
    	__u8  pad[108];
    };
    
    /* for KVM_PPC_GET_SMMU_INFO */
    #define KVM_PPC_PAGE_SIZES_MAX_SZ	8
    
    struct kvm_ppc_one_page_size {
    	__u32 page_shift;	/* Page shift (or 0) */
    	__u32 pte_enc;		/* Encoding in the HPTE (>>12) */
    };
    
    struct kvm_ppc_one_seg_page_size {
    	__u32 page_shift;	/* Base page shift of segment (or 0) */
    	__u32 slb_enc;		/* SLB encoding for BookS */
    	struct kvm_ppc_one_page_size enc[KVM_PPC_PAGE_SIZES_MAX_SZ];
    };
    
    #define KVM_PPC_PAGE_SIZES_REAL		0x00000001
    #define KVM_PPC_1T_SEGMENTS		0x00000002
    
    struct kvm_ppc_smmu_info {
    	__u64 flags;
    	__u32 slb_size;
    	__u16 data_keys;	/* # storage keys supported for data */
    	__u16 instr_keys;	/* # storage keys supported for instructions */
    	struct kvm_ppc_one_seg_page_size sps[KVM_PPC_PAGE_SIZES_MAX_SZ];
    };
    
    /* for KVM_PPC_RESIZE_HPT_{PREPARE,COMMIT} */
    struct kvm_ppc_resize_hpt {
    	__u64 flags;
    	__u32 shift;
    	__u32 pad;
    };
    
    #define KVMIO 0xAE
    
    /* machine type bits, to be used as argument to KVM_CREATE_VM */
    #define KVM_VM_S390_UCONTROL	1
    
    /* on ppc, 0 indicate default, 1 should force HV and 2 PR */
    #define KVM_VM_PPC_HV 1
    #define KVM_VM_PPC_PR 2
    
    /* on MIPS, 0 forces trap & emulate, 1 forces VZ ASE */
    #define KVM_VM_MIPS_TE		0
    #define KVM_VM_MIPS_VZ		1
    
    #define KVM_S390_SIE_PAGE_OFFSET 1
    
    /*
     * 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)
    #define KVM_TRACE_ENABLE          __KVM_DEPRECATED_MAIN_W_0x06
    #define KVM_TRACE_PAUSE           __KVM_DEPRECATED_MAIN_0x07
    #define KVM_TRACE_DISABLE         __KVM_DEPRECATED_MAIN_0x08
    #define KVM_GET_EMULATED_CPUID	  _IOWR(KVMIO, 0x09, struct kvm_cpuid2)
    #define KVM_GET_MSR_FEATURE_INDEX_LIST    _IOWR(KVMIO, 0x0a, struct kvm_msr_list)
    
    /*
     * 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 recommended 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 */
    #define KVM_CAP_IOMMU 18
    /* Bug in KVM_SET_USER_MEMORY_REGION fixed: */
    #define KVM_CAP_DESTROY_MEMORY_REGION_WORKS 21
    #define KVM_CAP_USER_NMI 22
    #ifdef __KVM_HAVE_GUEST_DEBUG
    #define KVM_CAP_SET_GUEST_DEBUG 23
    #endif
    #ifdef __KVM_HAVE_PIT
    #define KVM_CAP_REINJECT_CONTROL 24
    #endif
    #define KVM_CAP_IRQ_ROUTING 25
    #define KVM_CAP_IRQ_INJECT_STATUS 26
    #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
    #define KVM_CAP_SET_BOOT_CPU_ID 34
    #ifdef __KVM_HAVE_PIT_STATE2
    #define KVM_CAP_PIT_STATE2 35
    #endif
    #define KVM_CAP_IOEVENTFD 36
    #define KVM_CAP_SET_IDENTITY_MAP_ADDR 37
    #ifdef __KVM_HAVE_XEN_HVM
    #define KVM_CAP_XEN_HVM 38
    #endif
    #define KVM_CAP_ADJUST_CLOCK 39
    #define KVM_CAP_INTERNAL_ERROR_DATA 40
    #ifdef __KVM_HAVE_VCPU_EVENTS
    #define KVM_CAP_VCPU_EVENTS 41
    #endif
    #define KVM_CAP_S390_PSW 42
    #define KVM_CAP_PPC_SEGSTATE 43
    #define KVM_CAP_HYPERV 44
    #define KVM_CAP_HYPERV_VAPIC 45
    #define KVM_CAP_HYPERV_SPIN 46
    #define KVM_CAP_PCI_SEGMENT 47
    #define KVM_CAP_PPC_PAIRED_SINGLES 48
    #define KVM_CAP_INTR_SHADOW 49
    #ifdef __KVM_HAVE_DEBUGREGS
    #define KVM_CAP_DEBUGREGS 50
    #endif
    #define KVM_CAP_X86_ROBUST_SINGLESTEP 51
    #define KVM_CAP_PPC_OSI 52
    #define KVM_CAP_PPC_UNSET_IRQ 53
    #define KVM_CAP_ENABLE_CAP 54
    #ifdef __KVM_HAVE_XSAVE
    #define KVM_CAP_XSAVE 55
    #endif
    #ifdef __KVM_HAVE_XCRS
    #define KVM_CAP_XCRS 56
    #endif
    #define KVM_CAP_PPC_GET_PVINFO 57
    #define KVM_CAP_PPC_IRQ_LEVEL 58
    #define KVM_CAP_ASYNC_PF 59
    #define KVM_CAP_TSC_CONTROL 60
    #define KVM_CAP_GET_TSC_KHZ 61
    #define KVM_CAP_PPC_BOOKE_SREGS 62
    #define KVM_CAP_SPAPR_TCE 63
    #define KVM_CAP_PPC_SMT 64
    #define KVM_CAP_PPC_RMA	65
    #define KVM_CAP_MAX_VCPUS 66       /* returns max vcpus per vm */
    #define KVM_CAP_PPC_HIOR 67
    #define KVM_CAP_PPC_PAPR 68
    #define KVM_CAP_SW_TLB 69
    #define KVM_CAP_ONE_REG 70
    #define KVM_CAP_S390_GMAP 71
    #define KVM_CAP_TSC_DEADLINE_TIMER 72
    #define KVM_CAP_S390_UCONTROL 73
    #define KVM_CAP_SYNC_REGS 74
    #define KVM_CAP_PCI_2_3 75
    #define KVM_CAP_KVMCLOCK_CTRL 76
    #define KVM_CAP_SIGNAL_MSI 77
    #define KVM_CAP_PPC_GET_SMMU_INFO 78
    #define KVM_CAP_S390_COW 79
    #define KVM_CAP_PPC_ALLOC_HTAB 80
    #define KVM_CAP_READONLY_MEM 81
    #define KVM_CAP_IRQFD_RESAMPLE 82
    #define KVM_CAP_PPC_BOOKE_WATCHDOG 83
    #define KVM_CAP_PPC_HTAB_FD 84
    #define KVM_CAP_S390_CSS_SUPPORT 85
    #define KVM_CAP_PPC_EPR 86
    #define KVM_CAP_ARM_PSCI 87
    #define KVM_CAP_ARM_SET_DEVICE_ADDR 88
    #define KVM_CAP_DEVICE_CTRL 89
    #define KVM_CAP_IRQ_MPIC 90
    #define KVM_CAP_PPC_RTAS 91
    #define KVM_CAP_IRQ_XICS 92
    #define KVM_CAP_ARM_EL1_32BIT 93
    #define KVM_CAP_SPAPR_MULTITCE 94
    #define KVM_CAP_EXT_EMUL_CPUID 95
    #define KVM_CAP_HYPERV_TIME 96
    #define KVM_CAP_IOAPIC_POLARITY_IGNORED 97
    #define KVM_CAP_ENABLE_CAP_VM 98
    #define KVM_CAP_S390_IRQCHIP 99
    #define KVM_CAP_IOEVENTFD_NO_LENGTH 100
    #define KVM_CAP_VM_ATTRIBUTES 101
    #define KVM_CAP_ARM_PSCI_0_2 102
    #define KVM_CAP_PPC_FIXUP_HCALL 103
    #define KVM_CAP_PPC_ENABLE_HCALL 104
    #define KVM_CAP_CHECK_EXTENSION_VM 105
    #define KVM_CAP_S390_USER_SIGP 106
    #define KVM_CAP_S390_VECTOR_REGISTERS 107
    #define KVM_CAP_S390_MEM_OP 108
    #define KVM_CAP_S390_USER_STSI 109
    #define KVM_CAP_S390_SKEYS 110
    #define KVM_CAP_MIPS_FPU 111
    #define KVM_CAP_MIPS_MSA 112
    #define KVM_CAP_S390_INJECT_IRQ 113
    #define KVM_CAP_S390_IRQ_STATE 114
    #define KVM_CAP_PPC_HWRNG 115
    #define KVM_CAP_DISABLE_QUIRKS 116
    #define KVM_CAP_X86_SMM 117
    #define KVM_CAP_MULTI_ADDRESS_SPACE 118
    #define KVM_CAP_GUEST_DEBUG_HW_BPS 119
    #define KVM_CAP_GUEST_DEBUG_HW_WPS 120
    #define KVM_CAP_SPLIT_IRQCHIP 121
    #define KVM_CAP_IOEVENTFD_ANY_LENGTH 122
    #define KVM_CAP_HYPERV_SYNIC 123
    #define KVM_CAP_S390_RI 124
    #define KVM_CAP_SPAPR_TCE_64 125
    #define KVM_CAP_ARM_PMU_V3 126
    #define KVM_CAP_VCPU_ATTRIBUTES 127
    #define KVM_CAP_MAX_VCPU_ID 128
    #define KVM_CAP_X2APIC_API 129
    #define KVM_CAP_S390_USER_INSTR0 130
    #define KVM_CAP_MSI_DEVID 131
    #define KVM_CAP_PPC_HTM 132
    #define KVM_CAP_SPAPR_RESIZE_HPT 133
    #define KVM_CAP_PPC_MMU_RADIX 134
    #define KVM_CAP_PPC_MMU_HASH_V3 135
    #define KVM_CAP_IMMEDIATE_EXIT 136
    #define KVM_CAP_MIPS_VZ 137
    #define KVM_CAP_MIPS_TE 138
    #define KVM_CAP_MIPS_64BIT 139
    #define KVM_CAP_S390_GS 140
    #define KVM_CAP_S390_AIS 141
    #define KVM_CAP_SPAPR_TCE_VFIO 142
    #define KVM_CAP_X86_DISABLE_EXITS 143
    #define KVM_CAP_ARM_USER_IRQ 144
    #define KVM_CAP_S390_CMMA_MIGRATION 145
    #define KVM_CAP_PPC_FWNMI 146
    #define KVM_CAP_PPC_SMT_POSSIBLE 147
    #define KVM_CAP_HYPERV_SYNIC2 148
    #define KVM_CAP_HYPERV_VP_INDEX 149
    #define KVM_CAP_S390_AIS_MIGRATION 150
    #define KVM_CAP_PPC_GET_CPU_CHAR 151
    #define KVM_CAP_S390_BPB 152
    #define KVM_CAP_GET_MSR_FEATURES 153
    #define KVM_CAP_HYPERV_EVENTFD 154
    
    #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;
    	union {
    		__u32 pad;
    		__u32 devid;
    	};
    };
    
    struct kvm_irq_routing_s390_adapter {
    	__u64 ind_addr;
    	__u64 summary_addr;
    	__u64 ind_offset;
    	__u32 summary_offset;
    	__u32 adapter_id;
    };
    
    struct kvm_irq_routing_hv_sint {
    	__u32 vcpu;
    	__u32 sint;
    };
    
    /* gsi routing entry types */
    #define KVM_IRQ_ROUTING_IRQCHIP 1
    #define KVM_IRQ_ROUTING_MSI 2
    #define KVM_IRQ_ROUTING_S390_ADAPTER 3
    #define KVM_IRQ_ROUTING_HV_SINT 4
    
    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;
    		struct kvm_irq_routing_s390_adapter adapter;
    		struct kvm_irq_routing_hv_sint hv_sint;
    		__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
    
    #ifdef KVM_CAP_XEN_HVM
    struct kvm_xen_hvm_config {
    	__u32 flags;
    	__u32 msr;
    	__u64 blob_addr_32;
    	__u64 blob_addr_64;
    	__u8 blob_size_32;
    	__u8 blob_size_64;
    	__u8 pad2[30];
    };
    #endif
    
    #define KVM_IRQFD_FLAG_DEASSIGN (1 << 0)
    /*
     * Available with KVM_CAP_IRQFD_RESAMPLE
     *
     * KVM_IRQFD_FLAG_RESAMPLE indicates resamplefd is valid and specifies
     * the irqfd to operate in resampling mode for level triggered interrupt
     * emulation.  See Documentation/virtual/kvm/api.txt.
     */
    #define KVM_IRQFD_FLAG_RESAMPLE (1 << 1)
    
    struct kvm_irqfd {
    	__u32 fd;
    	__u32 gsi;
    	__u32 flags;
    	__u32 resamplefd;
    	__u8  pad[16];
    };
    
    /* For KVM_CAP_ADJUST_CLOCK */
    
    /* Do not use 1, KVM_CHECK_EXTENSION returned it before we had flags.  */
    #define KVM_CLOCK_TSC_STABLE		2
    
    struct kvm_clock_data {
    	__u64 clock;
    	__u32 flags;
    	__u32 pad[9];
    };
    
    /* For KVM_CAP_SW_TLB */
    
    #define KVM_MMU_FSL_BOOKE_NOHV		0
    #define KVM_MMU_FSL_BOOKE_HV		1
    
    struct kvm_config_tlb {
    	__u64 params;
    	__u64 array;
    	__u32 mmu_type;
    	__u32 array_len;
    };
    
    struct kvm_dirty_tlb {
    	__u64 bitmap;
    	__u32 num_dirty;
    };
    
    /* Available with KVM_CAP_ONE_REG */
    
    #define KVM_REG_ARCH_MASK	0xff00000000000000ULL
    #define KVM_REG_GENERIC		0x0000000000000000ULL
    
    /*
     * Architecture specific registers are to be defined in arch headers and
     * ORed with the arch identifier.
     */
    #define KVM_REG_PPC		0x1000000000000000ULL
    #define KVM_REG_X86		0x2000000000000000ULL
    #define KVM_REG_IA64		0x3000000000000000ULL
    #define KVM_REG_ARM		0x4000000000000000ULL
    #define KVM_REG_S390		0x5000000000000000ULL
    #define KVM_REG_ARM64		0x6000000000000000ULL
    #define KVM_REG_MIPS		0x7000000000000000ULL
    
    #define KVM_REG_SIZE_SHIFT	52
    #define KVM_REG_SIZE_MASK	0x00f0000000000000ULL
    #define KVM_REG_SIZE_U8		0x0000000000000000ULL
    #define KVM_REG_SIZE_U16	0x0010000000000000ULL
    #define KVM_REG_SIZE_U32	0x0020000000000000ULL
    #define KVM_REG_SIZE_U64	0x0030000000000000ULL
    #define KVM_REG_SIZE_U128	0x0040000000000000ULL
    #define KVM_REG_SIZE_U256	0x0050000000000000ULL
    #define KVM_REG_SIZE_U512	0x0060000000000000ULL
    #define KVM_REG_SIZE_U1024	0x0070000000000000ULL
    
    struct kvm_reg_list {
    	__u64 n; /* number of regs */
    	__u64 reg[0];
    };
    
    struct kvm_one_reg {
    	__u64 id;
    	__u64 addr;
    };
    
    #define KVM_MSI_VALID_DEVID	(1U << 0)
    struct kvm_msi {
    	__u32 address_lo;
    	__u32 address_hi;
    	__u32 data;
    	__u32 flags;
    	__u32 devid;
    	__u8  pad[12];
    };
    
    struct kvm_arm_device_addr {
    	__u64 id;
    	__u64 addr;
    };
    
    /*
     * Device control API, available with KVM_CAP_DEVICE_CTRL
     */
    #define KVM_CREATE_DEVICE_TEST		1
    
    struct kvm_create_device {
    	__u32	type;	/* in: KVM_DEV_TYPE_xxx */
    	__u32	fd;	/* out: device handle */
    	__u32	flags;	/* in: KVM_CREATE_DEVICE_xxx */
    };
    
    struct kvm_device_attr {
    	__u32	flags;		/* no flags currently defined */
    	__u32	group;		/* device-defined */
    	__u64	attr;		/* group-defined */
    	__u64	addr;		/* userspace address of attr data */
    };
    
    #define  KVM_DEV_VFIO_GROUP			1
    #define   KVM_DEV_VFIO_GROUP_ADD			1
    #define   KVM_DEV_VFIO_GROUP_DEL			2
    #define   KVM_DEV_VFIO_GROUP_SET_SPAPR_TCE		3
    
    enum kvm_device_type {
    	KVM_DEV_TYPE_FSL_MPIC_20	= 1,
    #define KVM_DEV_TYPE_FSL_MPIC_20	KVM_DEV_TYPE_FSL_MPIC_20
    	KVM_DEV_TYPE_FSL_MPIC_42,
    #define KVM_DEV_TYPE_FSL_MPIC_42	KVM_DEV_TYPE_FSL_MPIC_42
    	KVM_DEV_TYPE_XICS,
    #define KVM_DEV_TYPE_XICS		KVM_DEV_TYPE_XICS
    	KVM_DEV_TYPE_VFIO,
    #define KVM_DEV_TYPE_VFIO		KVM_DEV_TYPE_VFIO
    	KVM_DEV_TYPE_ARM_VGIC_V2,
    #define KVM_DEV_TYPE_ARM_VGIC_V2	KVM_DEV_TYPE_ARM_VGIC_V2
    	KVM_DEV_TYPE_FLIC,
    #define KVM_DEV_TYPE_FLIC		KVM_DEV_TYPE_FLIC
    	KVM_DEV_TYPE_ARM_VGIC_V3,
    #define KVM_DEV_TYPE_ARM_VGIC_V3	KVM_DEV_TYPE_ARM_VGIC_V3
    	KVM_DEV_TYPE_ARM_VGIC_ITS,
    #define KVM_DEV_TYPE_ARM_VGIC_ITS	KVM_DEV_TYPE_ARM_VGIC_ITS
    	KVM_DEV_TYPE_MAX,
    };
    
    struct kvm_vfio_spapr_tce {
    	__s32	groupfd;
    	__s32	tablefd;
    };
    
    /*
     * 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)
    /* KVM_SET_MEMORY_ALIAS is obsolete: */
    #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)
    #define KVM_SET_IDENTITY_MAP_ADDR _IOW(KVMIO,  0x48, __u64)
    
    /* enable ucontrol for s390 */
    struct kvm_s390_ucas_mapping {
    	__u64 user_addr;
    	__u64 vcpu_addr;
    	__u64 length;
    };
    #define KVM_S390_UCAS_MAP        _IOW(KVMIO, 0x50, struct kvm_s390_ucas_mapping)
    #define KVM_S390_UCAS_UNMAP      _IOW(KVMIO, 0x51, struct kvm_s390_ucas_mapping)
    #define KVM_S390_VCPU_FAULT	 _IOW(KVMIO, 0x52, unsigned long)
    
    /* 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            __KVM_DEPRECATED_VM_R_0x70
    #define KVM_ASSIGN_DEV_IRQ        _IOW(KVMIO,  0x70, struct kvm_assigned_irq)
    #define KVM_REINJECT_CONTROL      _IO(KVMIO,   0x71)
    #define KVM_DEASSIGN_PCI_DEVICE   _IOW(KVMIO,  0x72, \
    				       struct kvm_assigned_pci_dev)
    #define KVM_ASSIGN_SET_MSIX_NR    _IOW(KVMIO,  0x73, \
    				       struct kvm_assigned_msix_nr)
    #define KVM_ASSIGN_SET_MSIX_ENTRY _IOW(KVMIO,  0x74, \
    				       struct kvm_assigned_msix_entry)
    #define KVM_DEASSIGN_DEV_IRQ      _IOW(KVMIO,  0x75, struct kvm_assigned_irq)
    #define KVM_IRQFD                 _IOW(KVMIO,  0x76, struct kvm_irqfd)
    #define KVM_CREATE_PIT2		  _IOW(KVMIO,  0x77, struct kvm_pit_config)
    #define KVM_SET_BOOT_CPU_ID       _IO(KVMIO,   0x78)
    #define KVM_IOEVENTFD             _IOW(KVMIO,  0x79, struct kvm_ioeventfd)
    #define KVM_XEN_HVM_CONFIG        _IOW(KVMIO,  0x7a, struct kvm_xen_hvm_config)
    #define KVM_SET_CLOCK             _IOW(KVMIO,  0x7b, struct kvm_clock_data)
    #define KVM_GET_CLOCK             _IOR(KVMIO,  0x7c, struct kvm_clock_data)
    /* Available with KVM_CAP_PIT_STATE2 */
    #define KVM_GET_PIT2              _IOR(KVMIO,  0x9f, struct kvm_pit_state2)
    #define KVM_SET_PIT2              _IOW(KVMIO,  0xa0, struct kvm_pit_state2)
    /* Available with KVM_CAP_PPC_GET_PVINFO */
    #define KVM_PPC_GET_PVINFO	  _IOW(KVMIO,  0xa1, struct kvm_ppc_pvinfo)
    /* Available with KVM_CAP_TSC_CONTROL */
    #define KVM_SET_TSC_KHZ           _IO(KVMIO,  0xa2)
    #define KVM_GET_TSC_KHZ           _IO(KVMIO,  0xa3)
    /* Available with KVM_CAP_PCI_2_3 */
    #define KVM_ASSIGN_SET_INTX_MASK  _IOW(KVMIO,  0xa4, \
    				       struct kvm_assigned_pci_dev)
    /* Available with KVM_CAP_SIGNAL_MSI */
    #define KVM_SIGNAL_MSI            _IOW(KVMIO,  0xa5, struct kvm_msi)
    /* Available with KVM_CAP_PPC_GET_SMMU_INFO */
    #define KVM_PPC_GET_SMMU_INFO	  _IOR(KVMIO,  0xa6, struct kvm_ppc_smmu_info)
    /* Available with KVM_CAP_PPC_ALLOC_HTAB */
    #define KVM_PPC_ALLOCATE_HTAB	  _IOWR(KVMIO, 0xa7, __u32)
    #define KVM_CREATE_SPAPR_TCE	  _IOW(KVMIO,  0xa8, struct kvm_create_spapr_tce)
    #define KVM_CREATE_SPAPR_TCE_64	  _IOW(KVMIO,  0xa8, \
    				       struct kvm_create_spapr_tce_64)
    /* Available with KVM_CAP_RMA */
    #define KVM_ALLOCATE_RMA	  _IOR(KVMIO,  0xa9, struct kvm_allocate_rma)
    /* Available with KVM_CAP_PPC_HTAB_FD */
    #define KVM_PPC_GET_HTAB_FD	  _IOW(KVMIO,  0xaa, struct kvm_get_htab_fd)
    /* Available with KVM_CAP_ARM_SET_DEVICE_ADDR */
    #define KVM_ARM_SET_DEVICE_ADDR	  _IOW(KVMIO,  0xab, struct kvm_arm_device_addr)
    /* Available with KVM_CAP_PPC_RTAS */
    #define KVM_PPC_RTAS_DEFINE_TOKEN _IOW(KVMIO,  0xac, struct kvm_rtas_token_args)
    /* Available with KVM_CAP_SPAPR_RESIZE_HPT */
    #define KVM_PPC_RESIZE_HPT_PREPARE _IOR(KVMIO, 0xad, struct kvm_ppc_resize_hpt)
    #define KVM_PPC_RESIZE_HPT_COMMIT  _IOR(KVMIO, 0xae, struct kvm_ppc_resize_hpt)
    /* Available with KVM_CAP_PPC_RADIX_MMU or KVM_CAP_PPC_HASH_MMU_V3 */
    #define KVM_PPC_CONFIGURE_V3_MMU  _IOW(KVMIO,  0xaf, struct kvm_ppc_mmuv3_cfg)
    /* Available with KVM_CAP_PPC_RADIX_MMU */
    #define KVM_PPC_GET_RMMU_INFO	  _IOW(KVMIO,  0xb0, struct kvm_ppc_rmmu_info)
    /* Available with KVM_CAP_PPC_GET_CPU_CHAR */
    #define KVM_PPC_GET_CPU_CHAR	  _IOR(KVMIO,  0xb1, struct kvm_ppc_cpu_char)
    
    /* ioctl for vm fd */
    #define KVM_CREATE_DEVICE	  _IOWR(KVMIO,  0xe0, struct kvm_create_device)
    
    /* ioctls for fds returned by KVM_CREATE_DEVICE */
    #define KVM_SET_DEVICE_ATTR	  _IOW(KVMIO,  0xe1, struct kvm_device_attr)
    #define KVM_GET_DEVICE_ATTR	  _IOW(KVMIO,  0xe2, struct kvm_device_attr)
    #define KVM_HAS_DEVICE_ATTR	  _IOW(KVMIO,  0xe3, struct kvm_device_attr)
    
    /*
     * 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)
    /* KVM_DEBUG_GUEST is no longer supported, use KVM_SET_GUEST_DEBUG instead */
    #define KVM_DEBUG_GUEST           __KVM_DEPRECATED_VCPU_W_0x87
    #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)
    /* valid for virtual machine (for floating interrupt)_and_ vcpu */
    #define KVM_S390_INTERRUPT        _IOW(KVMIO,  0x94, struct kvm_s390_interrupt)
    /* store status for s390 */
    #define KVM_S390_STORE_STATUS_NOADDR    (-1ul)
    #define KVM_S390_STORE_STATUS_PREFIXED  (-2ul)
    #define KVM_S390_STORE_STATUS	  _IOW(KVMIO,  0x95, unsigned long)
    /* initial ipl psw for s390 */
    #define KVM_S390_SET_INITIAL_PSW  _IOW(KVMIO,  0x96, struct kvm_s390_psw)
    /* initial reset for s390 */
    #define KVM_S390_INITIAL_RESET    _IO(KVMIO,   0x97)
    #define KVM_GET_MP_STATE          _IOR(KVMIO,  0x98, struct kvm_mp_state)
    #define KVM_SET_MP_STATE          _IOW(KVMIO,  0x99, struct kvm_mp_state)
    /* Available with KVM_CAP_USER_NMI */
    #define KVM_NMI                   _IO(KVMIO,   0x9a)
    /* Available with KVM_CAP_SET_GUEST_DEBUG */
    #define KVM_SET_GUEST_DEBUG       _IOW(KVMIO,  0x9b, struct kvm_guest_debug)
    /* MCE for x86 */
    #define KVM_X86_SETUP_MCE         _IOW(KVMIO,  0x9c, __u64)
    #define KVM_X86_GET_MCE_CAP_SUPPORTED _IOR(KVMIO,  0x9d, __u64)
    #define KVM_X86_SET_MCE           _IOW(KVMIO,  0x9e, struct kvm_x86_mce)
    /* Available with KVM_CAP_VCPU_EVENTS */
    #define KVM_GET_VCPU_EVENTS       _IOR(KVMIO,  0x9f, struct kvm_vcpu_events)
    #define KVM_SET_VCPU_EVENTS       _IOW(KVMIO,  0xa0, struct kvm_vcpu_events)
    /* Available with KVM_CAP_DEBUGREGS */
    #define KVM_GET_DEBUGREGS         _IOR(KVMIO,  0xa1, struct kvm_debugregs)
    #define KVM_SET_DEBUGREGS         _IOW(KVMIO,  0xa2, struct kvm_debugregs)
    /*
     * vcpu version available with KVM_ENABLE_CAP
     * vm version available with KVM_CAP_ENABLE_CAP_VM
     */
    #define KVM_ENABLE_CAP            _IOW(KVMIO,  0xa3, struct kvm_enable_cap)
    /* Available with KVM_CAP_XSAVE */
    #define KVM_GET_XSAVE		  _IOR(KVMIO,  0xa4, struct kvm_xsave)
    #define KVM_SET_XSAVE		  _IOW(KVMIO,  0xa5, struct kvm_xsave)
    /* Available with KVM_CAP_XCRS */
    #define KVM_GET_XCRS		  _IOR(KVMIO,  0xa6, struct kvm_xcrs)
    #define KVM_SET_XCRS		  _IOW(KVMIO,  0xa7, struct kvm_xcrs)
    /* Available with KVM_CAP_SW_TLB */
    #define KVM_DIRTY_TLB		  _IOW(KVMIO,  0xaa, struct kvm_dirty_tlb)
    /* Available with KVM_CAP_ONE_REG */
    #define KVM_GET_ONE_REG		  _IOW(KVMIO,  0xab, struct kvm_one_reg)
    #define KVM_SET_ONE_REG		  _IOW(KVMIO,  0xac, struct kvm_one_reg)
    /* VM is being stopped by host */
    #define KVM_KVMCLOCK_CTRL	  _IO(KVMIO,   0xad)
    #define KVM_ARM_VCPU_INIT	  _IOW(KVMIO,  0xae, struct kvm_vcpu_init)
    #define KVM_ARM_PREFERRED_TARGET  _IOR(KVMIO,  0xaf, struct kvm_vcpu_init)
    #define KVM_GET_REG_LIST	  _IOWR(KVMIO, 0xb0, struct kvm_reg_list)
    /* Available with KVM_CAP_S390_MEM_OP */
    #define KVM_S390_MEM_OP		  _IOW(KVMIO,  0xb1, struct kvm_s390_mem_op)
    /* Available with KVM_CAP_S390_SKEYS */
    #define KVM_S390_GET_SKEYS      _IOW(KVMIO, 0xb2, struct kvm_s390_skeys)
    #define KVM_S390_SET_SKEYS      _IOW(KVMIO, 0xb3, struct kvm_s390_skeys)
    /* Available with KVM_CAP_S390_INJECT_IRQ */
    #define KVM_S390_IRQ              _IOW(KVMIO,  0xb4, struct kvm_s390_irq)
    /* Available with KVM_CAP_S390_IRQ_STATE */
    #define KVM_S390_SET_IRQ_STATE	  _IOW(KVMIO, 0xb5, struct kvm_s390_irq_state)
    #define KVM_S390_GET_IRQ_STATE	  _IOW(KVMIO, 0xb6, struct kvm_s390_irq_state)
    /* Available with KVM_CAP_X86_SMM */
    #define KVM_SMI                   _IO(KVMIO,   0xb7)
    /* Available with KVM_CAP_S390_CMMA_MIGRATION */
    #define KVM_S390_GET_CMMA_BITS      _IOWR(KVMIO, 0xb8, struct kvm_s390_cmma_log)
    #define KVM_S390_SET_CMMA_BITS      _IOW(KVMIO, 0xb9, struct kvm_s390_cmma_log)
    /* Memory Encryption Commands */
    #define KVM_MEMORY_ENCRYPT_OP      _IOWR(KVMIO, 0xba, unsigned long)
    
    struct kvm_enc_region {
    	__u64 addr;
    	__u64 size;
    };
    
    #define KVM_MEMORY_ENCRYPT_REG_REGION    _IOR(KVMIO, 0xbb, struct kvm_enc_region)
    #define KVM_MEMORY_ENCRYPT_UNREG_REGION  _IOR(KVMIO, 0xbc, struct kvm_enc_region)
    
    /* Available with KVM_CAP_HYPERV_EVENTFD */
    #define KVM_HYPERV_EVENTFD        _IOW(KVMIO,  0xbd, struct kvm_hyperv_eventfd)
    
    
    /* Secure Encrypted Virtualization command */
    enum sev_cmd_id {
    	/* Guest initialization commands */
    	KVM_SEV_INIT = 0,
    	KVM_SEV_ES_INIT,
    	/* Guest launch commands */
    	KVM_SEV_LAUNCH_START,
    	KVM_SEV_LAUNCH_UPDATE_DATA,
    	KVM_SEV_LAUNCH_UPDATE_VMSA,
    	KVM_SEV_LAUNCH_SECRET,
    	KVM_SEV_LAUNCH_MEASURE,
    	KVM_SEV_LAUNCH_FINISH,
    	/* Guest migration commands (outgoing) */
    	KVM_SEV_SEND_START,
    	KVM_SEV_SEND_UPDATE_DATA,
    	KVM_SEV_SEND_UPDATE_VMSA,
    	KVM_SEV_SEND_FINISH,
    	/* Guest migration commands (incoming) */
    	KVM_SEV_RECEIVE_START,
    	KVM_SEV_RECEIVE_UPDATE_DATA,
    	KVM_SEV_RECEIVE_UPDATE_VMSA,
    	KVM_SEV_RECEIVE_FINISH,
    	/* Guest status and debug commands */
    	KVM_SEV_GUEST_STATUS,
    	KVM_SEV_DBG_DECRYPT,
    	KVM_SEV_DBG_ENCRYPT,
    	/* Guest certificates commands */
    	KVM_SEV_CERT_EXPORT,
    
    	KVM_SEV_NR_MAX,
    };
    
    struct kvm_sev_cmd {
    	__u32 id;
    	__u64 data;
    	__u32 error;
    	__u32 sev_fd;
    };
    
    struct kvm_sev_launch_start {
    	__u32 handle;
    	__u32 policy;
    	__u64 dh_uaddr;
    	__u32 dh_len;
    	__u64 session_uaddr;
    	__u32 session_len;
    };
    
    struct kvm_sev_launch_update_data {
    	__u64 uaddr;
    	__u32 len;
    };
    
    
    struct kvm_sev_launch_secret {
    	__u64 hdr_uaddr;
    	__u32 hdr_len;
    	__u64 guest_uaddr;
    	__u32 guest_len;
    	__u64 trans_uaddr;
    	__u32 trans_len;
    };
    
    struct kvm_sev_launch_measure {
    	__u64 uaddr;
    	__u32 len;
    };
    
    struct kvm_sev_guest_status {
    	__u32 handle;
    	__u32 policy;
    	__u32 state;
    };
    
    struct kvm_sev_dbg {
    	__u64 src_uaddr;
    	__u64 dst_uaddr;
    	__u32 len;
    };
    
    #define KVM_DEV_ASSIGN_ENABLE_IOMMU	(1 << 0)
    #define KVM_DEV_ASSIGN_PCI_2_3		(1 << 1)
    #define KVM_DEV_ASSIGN_MASK_INTX	(1 << 2)
    
    struct kvm_assigned_pci_dev {
    	__u32 assigned_dev_id;
    	__u32 busnr;
    	__u32 devfn;
    	__u32 flags;
    	__u32 segnr;
    	union {
    		__u32 reserved[11];
    	};
    };
    
    #define KVM_DEV_IRQ_HOST_INTX    (1 << 0)
    #define KVM_DEV_IRQ_HOST_MSI     (1 << 1)
    #define KVM_DEV_IRQ_HOST_MSIX    (1 << 2)
    
    #define KVM_DEV_IRQ_GUEST_INTX   (1 << 8)
    #define KVM_DEV_IRQ_GUEST_MSI    (1 << 9)
    #define KVM_DEV_IRQ_GUEST_MSIX   (1 << 10)
    
    #define KVM_DEV_IRQ_HOST_MASK	 0x00ff
    #define KVM_DEV_IRQ_GUEST_MASK   0xff00
    
    struct kvm_assigned_irq {
    	__u32 assigned_dev_id;
    	__u32 host_irq; /* ignored (legacy field) */
    	__u32 guest_irq;
    	__u32 flags;
    	union {
    		__u32 reserved[12];
    	};
    };
    
    struct kvm_assigned_msix_nr {
    	__u32 assigned_dev_id;
    	__u16 entry_nr;
    	__u16 padding;
    };
    
    #define KVM_MAX_MSIX_PER_DEV		256
    struct kvm_assigned_msix_entry {
    	__u32 assigned_dev_id;
    	__u32 gsi;
    	__u16 entry; /* The index of entry in the MSI-X table */
    	__u16 padding[3];
    };
    
    #define KVM_X2APIC_API_USE_32BIT_IDS            (1ULL << 0)
    #define KVM_X2APIC_API_DISABLE_BROADCAST_QUIRK  (1ULL << 1)
    
    /* Available with KVM_CAP_ARM_USER_IRQ */
    
    /* Bits for run->s.regs.device_irq_level */
    #define KVM_ARM_DEV_EL1_VTIMER		(1 << 0)
    #define KVM_ARM_DEV_EL1_PTIMER		(1 << 1)
    #define KVM_ARM_DEV_PMU			(1 << 2)
    
    struct kvm_hyperv_eventfd {
    	__u32 conn_id;
    	__s32 fd;
    	__u32 flags;
    	__u32 padding[3];
    };
    
    #define KVM_HYPERV_CONN_ID_MASK		0x00ffffff
    #define KVM_HYPERV_EVENTFD_DEASSIGN	(1 << 0)
    
    #endif /* __LINUX_KVM_H */