linux-headers/asm-x86/kvm.h - qemu - Git at Google


            
            /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

            
            #ifndef _ASM_X86_KVM_H

            
            #define _ASM_X86_KVM_H


            /*

            
             * KVM x86 specific structures and definitions

            
             *

            
             */


            #include <linux/types.h>

            
            #include <linux/ioctl.h>


            #define KVM_PIO_PAGE_OFFSET 1

            
            #define KVM_COALESCED_MMIO_PAGE_OFFSET 2

            
            #define KVM_DIRTY_LOG_PAGE_OFFSET 64


            #define DE_VECTOR 0

            
            #define DB_VECTOR 1

            
            #define BP_VECTOR 3

            
            #define OF_VECTOR 4

            
            #define BR_VECTOR 5

            
            #define UD_VECTOR 6

            
            #define NM_VECTOR 7

            
            #define DF_VECTOR 8

            
            #define TS_VECTOR 10

            
            #define NP_VECTOR 11

            
            #define SS_VECTOR 12

            
            #define GP_VECTOR 13

            
            #define PF_VECTOR 14

            
            #define MF_VECTOR 16

            
            #define AC_VECTOR 17

            
            #define MC_VECTOR 18

            
            #define XM_VECTOR 19

            
            #define VE_VECTOR 20


            /* Select x86 specific features in <linux/kvm.h> */

            
            #define __KVM_HAVE_PIT

            
            #define __KVM_HAVE_IOAPIC

            
            #define __KVM_HAVE_IRQ_LINE

            
            #define __KVM_HAVE_MSI

            
            #define __KVM_HAVE_USER_NMI

            
            #define __KVM_HAVE_GUEST_DEBUG

            
            #define __KVM_HAVE_MSIX

            
            #define __KVM_HAVE_MCE

            
            #define __KVM_HAVE_PIT_STATE2

            
            #define __KVM_HAVE_XEN_HVM

            
            #define __KVM_HAVE_VCPU_EVENTS

            
            #define __KVM_HAVE_DEBUGREGS

            
            #define __KVM_HAVE_XSAVE

            
            #define __KVM_HAVE_XCRS

            
            #define __KVM_HAVE_READONLY_MEM


            /* Architectural interrupt line count. */

            
            #define KVM_NR_INTERRUPTS 256


            /* for KVM_GET_IRQCHIP and KVM_SET_IRQCHIP */

            
            struct kvm_pic_state {

            
            	__u8 last_irr;	/* edge detection */

            
            	__u8 irr;		/* interrupt request register */

            
            	__u8 imr;		/* interrupt mask register */

            
            	__u8 isr;		/* interrupt service register */

            
            	__u8 priority_add;	/* highest irq priority */

            
            	__u8 irq_base;

            
            	__u8 read_reg_select;

            
            	__u8 poll;

            
            	__u8 special_mask;

            
            	__u8 init_state;

            
            	__u8 auto_eoi;

            
            	__u8 rotate_on_auto_eoi;

            
            	__u8 special_fully_nested_mode;

            
            	__u8 init4;		/* true if 4 byte init */

            
            	__u8 elcr;		/* PIIX edge/trigger selection */

            
            	__u8 elcr_mask;

            
            };


            #define KVM_IOAPIC_NUM_PINS  24

            
            struct kvm_ioapic_state {

            
            	__u64 base_address;

            
            	__u32 ioregsel;

            
            	__u32 id;

            
            	__u32 irr;

            
            	__u32 pad;

            
            	union {

            
            		__u64 bits;

            
            		struct {

            
            			__u8 vector;

            
            			__u8 delivery_mode:3;

            
            			__u8 dest_mode:1;

            
            			__u8 delivery_status:1;

            
            			__u8 polarity:1;

            
            			__u8 remote_irr:1;

            
            			__u8 trig_mode:1;

            
            			__u8 mask:1;

            
            			__u8 reserve:7;

            
            			__u8 reserved[4];

            
            			__u8 dest_id;

            
            		} fields;

            
            	} redirtbl[KVM_IOAPIC_NUM_PINS];

            
            };


            #define KVM_IRQCHIP_PIC_MASTER   0

            
            #define KVM_IRQCHIP_PIC_SLAVE    1

            
            #define KVM_IRQCHIP_IOAPIC       2

            
            #define KVM_NR_IRQCHIPS          3


            #define KVM_RUN_X86_SMM		 (1 << 0)

            
            #define KVM_RUN_X86_BUS_LOCK     (1 << 1)


            /* 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_LAPIC and KVM_SET_LAPIC */

            
            #define KVM_APIC_REG_SIZE 0x400

            
            struct kvm_lapic_state {

            
            	char regs[KVM_APIC_REG_SIZE];

            
            };


            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_NR_INTERRUPTS + 63) / 64];

            
            };


            struct kvm_sregs2 {

            
            	/* out (KVM_GET_SREGS2) / in (KVM_SET_SREGS2) */

            
            	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 flags;

            
            	__u64 pdptrs[4];

            
            };

            
            #define KVM_SREGS2_FLAGS_PDPTRS_VALID 1


            /* 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_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[];

            
            };


            /* for KVM_GET_MSR_INDEX_LIST */

            
            struct kvm_msr_list {

            
            	__u32 nmsrs; /* number of msrs in entries */

            
            	__u32 indices[];

            
            };


            /* Maximum size of any access bitmap in bytes */

            
            #define KVM_MSR_FILTER_MAX_BITMAP_SIZE 0x600


            /* for KVM_X86_SET_MSR_FILTER */

            
            struct kvm_msr_filter_range {

            
            #define KVM_MSR_FILTER_READ  (1 << 0)

            
            #define KVM_MSR_FILTER_WRITE (1 << 1)

            
            #define KVM_MSR_FILTER_RANGE_VALID_MASK (KVM_MSR_FILTER_READ | \

            
            					 KVM_MSR_FILTER_WRITE)

            
            	__u32 flags;

            
            	__u32 nmsrs; /* number of msrs in bitmap */

            
            	__u32 base;  /* MSR index the bitmap starts at */

            
            	__u8 *bitmap; /* a 1 bit allows the operations in flags, 0 denies */

            
            };


            #define KVM_MSR_FILTER_MAX_RANGES 16

            
            struct kvm_msr_filter {

            
            #define KVM_MSR_FILTER_DEFAULT_ALLOW (0 << 0)

            
            #define KVM_MSR_FILTER_DEFAULT_DENY  (1 << 0)

            
            #define KVM_MSR_FILTER_VALID_MASK (KVM_MSR_FILTER_DEFAULT_DENY)

            
            	__u32 flags;

            
            	struct kvm_msr_filter_range ranges[KVM_MSR_FILTER_MAX_RANGES];

            
            };


            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[];

            
            };


            struct kvm_cpuid_entry2 {

            
            	__u32 function;

            
            	__u32 index;

            
            	__u32 flags;

            
            	__u32 eax;

            
            	__u32 ebx;

            
            	__u32 ecx;

            
            	__u32 edx;

            
            	__u32 padding[3];

            
            };


            #define KVM_CPUID_FLAG_SIGNIFCANT_INDEX		(1 << 0)

            
            #define KVM_CPUID_FLAG_STATEFUL_FUNC		(1 << 1)

            
            #define KVM_CPUID_FLAG_STATE_READ_NEXT		(1 << 2)


            /* for KVM_SET_CPUID2 */

            
            struct kvm_cpuid2 {

            
            	__u32 nent;

            
            	__u32 padding;

            
            	struct kvm_cpuid_entry2 entries[];

            
            };


            /* for KVM_GET_PIT and KVM_SET_PIT */

            
            struct kvm_pit_channel_state {

            
            	__u32 count; /* can be 65536 */

            
            	__u16 latched_count;

            
            	__u8 count_latched;

            
            	__u8 status_latched;

            
            	__u8 status;

            
            	__u8 read_state;

            
            	__u8 write_state;

            
            	__u8 write_latch;

            
            	__u8 rw_mode;

            
            	__u8 mode;

            
            	__u8 bcd;

            
            	__u8 gate;

            
            	__s64 count_load_time;

            
            };


            struct kvm_debug_exit_arch {

            
            	__u32 exception;

            
            	__u32 pad;

            
            	__u64 pc;

            
            	__u64 dr6;

            
            	__u64 dr7;

            
            };


            #define KVM_GUESTDBG_USE_SW_BP		0x00010000

            
            #define KVM_GUESTDBG_USE_HW_BP		0x00020000

            
            #define KVM_GUESTDBG_INJECT_DB		0x00040000

            
            #define KVM_GUESTDBG_INJECT_BP		0x00080000

            
            #define KVM_GUESTDBG_BLOCKIRQ		0x00100000


            /* for KVM_SET_GUEST_DEBUG */

            
            struct kvm_guest_debug_arch {

            
            	__u64 debugreg[8];

            
            };


            struct kvm_pit_state {

            
            	struct kvm_pit_channel_state channels[3];

            
            };


            #define KVM_PIT_FLAGS_HPET_LEGACY     0x00000001

            
            #define KVM_PIT_FLAGS_SPEAKER_DATA_ON 0x00000002


            struct kvm_pit_state2 {

            
            	struct kvm_pit_channel_state channels[3];

            
            	__u32 flags;

            
            	__u32 reserved[9];

            
            };


            struct kvm_reinject_control {

            
            	__u8 pit_reinject;

            
            	__u8 reserved[31];

            
            };


            /* When set in flags, include corresponding fields on KVM_SET_VCPU_EVENTS */

            
            #define KVM_VCPUEVENT_VALID_NMI_PENDING	0x00000001

            
            #define KVM_VCPUEVENT_VALID_SIPI_VECTOR	0x00000002

            
            #define KVM_VCPUEVENT_VALID_SHADOW	0x00000004

            
            #define KVM_VCPUEVENT_VALID_SMM		0x00000008

            
            #define KVM_VCPUEVENT_VALID_PAYLOAD	0x00000010

            
            #define KVM_VCPUEVENT_VALID_TRIPLE_FAULT	0x00000020


            /* Interrupt shadow states */

            
            #define KVM_X86_SHADOW_INT_MOV_SS	0x01

            
            #define KVM_X86_SHADOW_INT_STI		0x02


            /* for KVM_GET/SET_VCPU_EVENTS */

            
            struct kvm_vcpu_events {

            
            	struct {

            
            		__u8 injected;

            
            		__u8 nr;

            
            		__u8 has_error_code;

            
            		__u8 pending;

            
            		__u32 error_code;

            
            	} exception;

            
            	struct {

            
            		__u8 injected;

            
            		__u8 nr;

            
            		__u8 soft;

            
            		__u8 shadow;

            
            	} interrupt;

            
            	struct {

            
            		__u8 injected;

            
            		__u8 pending;

            
            		__u8 masked;

            
            		__u8 pad;

            
            	} nmi;

            
            	__u32 sipi_vector;

            
            	__u32 flags;

            
            	struct {

            
            		__u8 smm;

            
            		__u8 pending;

            
            		__u8 smm_inside_nmi;

            
            		__u8 latched_init;

            
            	} smi;

            
            	struct {

            
            		__u8 pending;

            
            	} triple_fault;

            
            	__u8 reserved[26];

            
            	__u8 exception_has_payload;

            
            	__u64 exception_payload;

            
            };


            /* for KVM_GET/SET_DEBUGREGS */

            
            struct kvm_debugregs {

            
            	__u64 db[4];

            
            	__u64 dr6;

            
            	__u64 dr7;

            
            	__u64 flags;

            
            	__u64 reserved[9];

            
            };


            /* for KVM_CAP_XSAVE and KVM_CAP_XSAVE2 */

            
            struct kvm_xsave {

            
            	/*

            
            	 * KVM_GET_XSAVE2 and KVM_SET_XSAVE write and read as many bytes

            
            	 * as are returned by KVM_CHECK_EXTENSION(KVM_CAP_XSAVE2)

            
            	 * respectively, when invoked on the vm file descriptor.

            
            	 *

            
            	 * The size value returned by KVM_CHECK_EXTENSION(KVM_CAP_XSAVE2)

            
            	 * will always be at least 4096. Currently, it is only greater

            
            	 * than 4096 if a dynamic feature has been enabled with

            
            	 * ``arch_prctl()``, but this may change in the future.

            
            	 *

            
            	 * The offsets of the state save areas in struct kvm_xsave follow

            
            	 * the contents of CPUID leaf 0xD on the host.

            
            	 */

            
            	__u32 region[1024];

            
            	__u32 extra[];

            
            };


            #define KVM_MAX_XCRS	16


            struct kvm_xcr {

            
            	__u32 xcr;

            
            	__u32 reserved;

            
            	__u64 value;

            
            };


            struct kvm_xcrs {

            
            	__u32 nr_xcrs;

            
            	__u32 flags;

            
            	struct kvm_xcr xcrs[KVM_MAX_XCRS];

            
            	__u64 padding[16];

            
            };


            #define KVM_SYNC_X86_REGS      (1UL << 0)

            
            #define KVM_SYNC_X86_SREGS     (1UL << 1)

            
            #define KVM_SYNC_X86_EVENTS    (1UL << 2)


            #define KVM_SYNC_X86_VALID_FIELDS \

            
            	(KVM_SYNC_X86_REGS| \

            
            	 KVM_SYNC_X86_SREGS| \

            
            	 KVM_SYNC_X86_EVENTS)


            /* kvm_sync_regs struct included by kvm_run struct */

            
            struct kvm_sync_regs {

            
            	/* Members of this structure are potentially malicious.

            
            	 * Care must be taken by code reading, esp. interpreting,

            
            	 * data fields from them inside KVM to prevent TOCTOU and

            
            	 * double-fetch types of vulnerabilities.

            
            	 */

            
            	struct kvm_regs regs;

            
            	struct kvm_sregs sregs;

            
            	struct kvm_vcpu_events events;

            
            };


            #define KVM_X86_QUIRK_LINT0_REENABLED		(1 << 0)

            
            #define KVM_X86_QUIRK_CD_NW_CLEARED		(1 << 1)

            
            #define KVM_X86_QUIRK_LAPIC_MMIO_HOLE		(1 << 2)

            
            #define KVM_X86_QUIRK_OUT_7E_INC_RIP		(1 << 3)

            
            #define KVM_X86_QUIRK_MISC_ENABLE_NO_MWAIT	(1 << 4)

            
            #define KVM_X86_QUIRK_FIX_HYPERCALL_INSN	(1 << 5)

            
            #define KVM_X86_QUIRK_MWAIT_NEVER_UD_FAULTS	(1 << 6)


            #define KVM_STATE_NESTED_FORMAT_VMX	0

            
            #define KVM_STATE_NESTED_FORMAT_SVM	1


            #define KVM_STATE_NESTED_GUEST_MODE	0x00000001

            
            #define KVM_STATE_NESTED_RUN_PENDING	0x00000002

            
            #define KVM_STATE_NESTED_EVMCS		0x00000004

            
            #define KVM_STATE_NESTED_MTF_PENDING	0x00000008

            
            #define KVM_STATE_NESTED_GIF_SET	0x00000100


            #define KVM_STATE_NESTED_SMM_GUEST_MODE	0x00000001

            
            #define KVM_STATE_NESTED_SMM_VMXON	0x00000002


            #define KVM_STATE_NESTED_VMX_VMCS_SIZE	0x1000


            #define KVM_STATE_NESTED_SVM_VMCB_SIZE	0x1000


            #define KVM_STATE_VMX_PREEMPTION_TIMER_DEADLINE	0x00000001


            /* attributes for system fd (group 0) */

            
            #define KVM_X86_XCOMP_GUEST_SUPP	0


            struct kvm_vmx_nested_state_data {

            
            	__u8 vmcs12[KVM_STATE_NESTED_VMX_VMCS_SIZE];

            
            	__u8 shadow_vmcs12[KVM_STATE_NESTED_VMX_VMCS_SIZE];

            
            };


            struct kvm_vmx_nested_state_hdr {

            
            	__u64 vmxon_pa;

            
            	__u64 vmcs12_pa;


            	struct {

            
            		__u16 flags;

            
            	} smm;


            	__u16 pad;


            	__u32 flags;

            
            	__u64 preemption_timer_deadline;

            
            };


            struct kvm_svm_nested_state_data {

            
            	/* Save area only used if KVM_STATE_NESTED_RUN_PENDING.  */

            
            	__u8 vmcb12[KVM_STATE_NESTED_SVM_VMCB_SIZE];

            
            };


            struct kvm_svm_nested_state_hdr {

            
            	__u64 vmcb_pa;

            
            };


            /* for KVM_CAP_NESTED_STATE */

            
            struct kvm_nested_state {

            
            	__u16 flags;

            
            	__u16 format;

            
            	__u32 size;


            	union {

            
            		struct kvm_vmx_nested_state_hdr vmx;

            
            		struct kvm_svm_nested_state_hdr svm;


            		/* Pad the header to 128 bytes.  */

            
            		__u8 pad[120];

            
            	} hdr;


            	/*

            
            	 * Define data region as 0 bytes to preserve backwards-compatability

            
            	 * to old definition of kvm_nested_state in order to avoid changing

            
            	 * KVM_{GET,PUT}_NESTED_STATE ioctl values.

            
            	 */

            
            	union {

            
            		struct kvm_vmx_nested_state_data vmx[0];

            
            		struct kvm_svm_nested_state_data svm[0];

            
            	} data;

            
            };


            /* for KVM_CAP_PMU_EVENT_FILTER */

            
            struct kvm_pmu_event_filter {

            
            	__u32 action;

            
            	__u32 nevents;

            
            	__u32 fixed_counter_bitmap;

            
            	__u32 flags;

            
            	__u32 pad[4];

            
            	__u64 events[];

            
            };


            #define KVM_PMU_EVENT_ALLOW 0

            
            #define KVM_PMU_EVENT_DENY 1


            /* for KVM_{GET,SET,HAS}_DEVICE_ATTR */

            
            #define KVM_VCPU_TSC_CTRL 0 /* control group for the timestamp counter (TSC) */

            
            #define   KVM_VCPU_TSC_OFFSET 0 /* attribute for the TSC offset */


            #endif /* _ASM_X86_KVM_H */
	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
	#ifndef _ASM_X86_KVM_H
	#define _ASM_X86_KVM_H

	/*
	* KVM x86 specific structures and definitions
	*
	*/

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

	#define KVM_PIO_PAGE_OFFSET 1
	#define KVM_COALESCED_MMIO_PAGE_OFFSET 2
	#define KVM_DIRTY_LOG_PAGE_OFFSET 64

	#define DE_VECTOR 0
	#define DB_VECTOR 1
	#define BP_VECTOR 3
	#define OF_VECTOR 4
	#define BR_VECTOR 5
	#define UD_VECTOR 6
	#define NM_VECTOR 7
	#define DF_VECTOR 8
	#define TS_VECTOR 10
	#define NP_VECTOR 11
	#define SS_VECTOR 12
	#define GP_VECTOR 13
	#define PF_VECTOR 14
	#define MF_VECTOR 16
	#define AC_VECTOR 17
	#define MC_VECTOR 18
	#define XM_VECTOR 19
	#define VE_VECTOR 20

	/* Select x86 specific features in <linux/kvm.h> */
	#define __KVM_HAVE_PIT
	#define __KVM_HAVE_IOAPIC
	#define __KVM_HAVE_IRQ_LINE
	#define __KVM_HAVE_MSI
	#define __KVM_HAVE_USER_NMI
	#define __KVM_HAVE_GUEST_DEBUG
	#define __KVM_HAVE_MSIX
	#define __KVM_HAVE_MCE
	#define __KVM_HAVE_PIT_STATE2
	#define __KVM_HAVE_XEN_HVM
	#define __KVM_HAVE_VCPU_EVENTS
	#define __KVM_HAVE_DEBUGREGS
	#define __KVM_HAVE_XSAVE
	#define __KVM_HAVE_XCRS
	#define __KVM_HAVE_READONLY_MEM

	/* Architectural interrupt line count. */
	#define KVM_NR_INTERRUPTS 256

	/* for KVM_GET_IRQCHIP and KVM_SET_IRQCHIP */
	struct kvm_pic_state {
	__u8 last_irr; /* edge detection */
	__u8 irr; /* interrupt request register */
	__u8 imr; /* interrupt mask register */
	__u8 isr; /* interrupt service register */
	__u8 priority_add; /* highest irq priority */
	__u8 irq_base;
	__u8 read_reg_select;
	__u8 poll;
	__u8 special_mask;
	__u8 init_state;
	__u8 auto_eoi;
	__u8 rotate_on_auto_eoi;
	__u8 special_fully_nested_mode;
	__u8 init4; /* true if 4 byte init */
	__u8 elcr; /* PIIX edge/trigger selection */
	__u8 elcr_mask;
	};

	#define KVM_IOAPIC_NUM_PINS 24
	struct kvm_ioapic_state {
	__u64 base_address;
	__u32 ioregsel;
	__u32 id;
	__u32 irr;
	__u32 pad;
	union {
	__u64 bits;
	struct {
	__u8 vector;
	__u8 delivery_mode:3;
	__u8 dest_mode:1;
	__u8 delivery_status:1;
	__u8 polarity:1;
	__u8 remote_irr:1;
	__u8 trig_mode:1;
	__u8 mask:1;
	__u8 reserve:7;
	__u8 reserved[4];
	__u8 dest_id;
	} fields;
	} redirtbl[KVM_IOAPIC_NUM_PINS];
	};

	#define KVM_IRQCHIP_PIC_MASTER 0
	#define KVM_IRQCHIP_PIC_SLAVE 1
	#define KVM_IRQCHIP_IOAPIC 2
	#define KVM_NR_IRQCHIPS 3

	#define KVM_RUN_X86_SMM (1 << 0)
	#define KVM_RUN_X86_BUS_LOCK (1 << 1)

	/* 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_LAPIC and KVM_SET_LAPIC */
	#define KVM_APIC_REG_SIZE 0x400
	struct kvm_lapic_state {
	char regs[KVM_APIC_REG_SIZE];
	};

	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_NR_INTERRUPTS + 63) / 64];
	};

	struct kvm_sregs2 {
	/* out (KVM_GET_SREGS2) / in (KVM_SET_SREGS2) */
	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 flags;
	__u64 pdptrs[4];
	};
	#define KVM_SREGS2_FLAGS_PDPTRS_VALID 1

	/* 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_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[];
	};

	/* for KVM_GET_MSR_INDEX_LIST */
	struct kvm_msr_list {
	__u32 nmsrs; /* number of msrs in entries */
	__u32 indices[];
	};

	/* Maximum size of any access bitmap in bytes */
	#define KVM_MSR_FILTER_MAX_BITMAP_SIZE 0x600

	/* for KVM_X86_SET_MSR_FILTER */
	struct kvm_msr_filter_range {
	#define KVM_MSR_FILTER_READ (1 << 0)
	#define KVM_MSR_FILTER_WRITE (1 << 1)
	#define KVM_MSR_FILTER_RANGE_VALID_MASK (KVM_MSR_FILTER_READ \| \
	KVM_MSR_FILTER_WRITE)
	__u32 flags;
	__u32 nmsrs; /* number of msrs in bitmap */
	__u32 base; /* MSR index the bitmap starts at */
	__u8 bitmap; / a 1 bit allows the operations in flags, 0 denies */
	};

	#define KVM_MSR_FILTER_MAX_RANGES 16
	struct kvm_msr_filter {
	#define KVM_MSR_FILTER_DEFAULT_ALLOW (0 << 0)
	#define KVM_MSR_FILTER_DEFAULT_DENY (1 << 0)
	#define KVM_MSR_FILTER_VALID_MASK (KVM_MSR_FILTER_DEFAULT_DENY)
	__u32 flags;
	struct kvm_msr_filter_range ranges[KVM_MSR_FILTER_MAX_RANGES];
	};

	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[];
	};

	struct kvm_cpuid_entry2 {
	__u32 function;
	__u32 index;
	__u32 flags;
	__u32 eax;
	__u32 ebx;
	__u32 ecx;
	__u32 edx;
	__u32 padding[3];
	};

	#define KVM_CPUID_FLAG_SIGNIFCANT_INDEX (1 << 0)
	#define KVM_CPUID_FLAG_STATEFUL_FUNC (1 << 1)
	#define KVM_CPUID_FLAG_STATE_READ_NEXT (1 << 2)

	/* for KVM_SET_CPUID2 */
	struct kvm_cpuid2 {
	__u32 nent;
	__u32 padding;
	struct kvm_cpuid_entry2 entries[];
	};

	/* for KVM_GET_PIT and KVM_SET_PIT */
	struct kvm_pit_channel_state {
	__u32 count; /* can be 65536 */
	__u16 latched_count;
	__u8 count_latched;
	__u8 status_latched;
	__u8 status;
	__u8 read_state;
	__u8 write_state;
	__u8 write_latch;
	__u8 rw_mode;
	__u8 mode;
	__u8 bcd;
	__u8 gate;
	__s64 count_load_time;
	};

	struct kvm_debug_exit_arch {
	__u32 exception;
	__u32 pad;
	__u64 pc;
	__u64 dr6;
	__u64 dr7;
	};

	#define KVM_GUESTDBG_USE_SW_BP 0x00010000
	#define KVM_GUESTDBG_USE_HW_BP 0x00020000
	#define KVM_GUESTDBG_INJECT_DB 0x00040000
	#define KVM_GUESTDBG_INJECT_BP 0x00080000
	#define KVM_GUESTDBG_BLOCKIRQ 0x00100000

	/* for KVM_SET_GUEST_DEBUG */
	struct kvm_guest_debug_arch {
	__u64 debugreg[8];
	};

	struct kvm_pit_state {
	struct kvm_pit_channel_state channels[3];
	};

	#define KVM_PIT_FLAGS_HPET_LEGACY 0x00000001
	#define KVM_PIT_FLAGS_SPEAKER_DATA_ON 0x00000002

	struct kvm_pit_state2 {
	struct kvm_pit_channel_state channels[3];
	__u32 flags;
	__u32 reserved[9];
	};

	struct kvm_reinject_control {
	__u8 pit_reinject;
	__u8 reserved[31];
	};

	/* When set in flags, include corresponding fields on KVM_SET_VCPU_EVENTS */
	#define KVM_VCPUEVENT_VALID_NMI_PENDING 0x00000001
	#define KVM_VCPUEVENT_VALID_SIPI_VECTOR 0x00000002
	#define KVM_VCPUEVENT_VALID_SHADOW 0x00000004
	#define KVM_VCPUEVENT_VALID_SMM 0x00000008
	#define KVM_VCPUEVENT_VALID_PAYLOAD 0x00000010
	#define KVM_VCPUEVENT_VALID_TRIPLE_FAULT 0x00000020

	/* Interrupt shadow states */
	#define KVM_X86_SHADOW_INT_MOV_SS 0x01
	#define KVM_X86_SHADOW_INT_STI 0x02

	/* for KVM_GET/SET_VCPU_EVENTS */
	struct kvm_vcpu_events {
	struct {
	__u8 injected;
	__u8 nr;
	__u8 has_error_code;
	__u8 pending;
	__u32 error_code;
	} exception;
	struct {
	__u8 injected;
	__u8 nr;
	__u8 soft;
	__u8 shadow;
	} interrupt;
	struct {
	__u8 injected;
	__u8 pending;
	__u8 masked;
	__u8 pad;
	} nmi;
	__u32 sipi_vector;
	__u32 flags;
	struct {
	__u8 smm;
	__u8 pending;
	__u8 smm_inside_nmi;
	__u8 latched_init;
	} smi;
	struct {
	__u8 pending;
	} triple_fault;
	__u8 reserved[26];
	__u8 exception_has_payload;
	__u64 exception_payload;
	};

	/* for KVM_GET/SET_DEBUGREGS */
	struct kvm_debugregs {
	__u64 db[4];
	__u64 dr6;
	__u64 dr7;
	__u64 flags;
	__u64 reserved[9];
	};

	/* for KVM_CAP_XSAVE and KVM_CAP_XSAVE2 */
	struct kvm_xsave {
	/*
	* KVM_GET_XSAVE2 and KVM_SET_XSAVE write and read as many bytes
	* as are returned by KVM_CHECK_EXTENSION(KVM_CAP_XSAVE2)
	* respectively, when invoked on the vm file descriptor.
	*
	* The size value returned by KVM_CHECK_EXTENSION(KVM_CAP_XSAVE2)
	* will always be at least 4096. Currently, it is only greater
	* than 4096 if a dynamic feature has been enabled with
	* ``arch_prctl()``, but this may change in the future.
	*
	* The offsets of the state save areas in struct kvm_xsave follow
	* the contents of CPUID leaf 0xD on the host.
	*/
	__u32 region[1024];
	__u32 extra[];
	};

	#define KVM_MAX_XCRS 16

	struct kvm_xcr {
	__u32 xcr;
	__u32 reserved;
	__u64 value;
	};

	struct kvm_xcrs {
	__u32 nr_xcrs;
	__u32 flags;
	struct kvm_xcr xcrs[KVM_MAX_XCRS];
	__u64 padding[16];
	};

	#define KVM_SYNC_X86_REGS (1UL << 0)
	#define KVM_SYNC_X86_SREGS (1UL << 1)
	#define KVM_SYNC_X86_EVENTS (1UL << 2)

	#define KVM_SYNC_X86_VALID_FIELDS \
	(KVM_SYNC_X86_REGS\| \
	KVM_SYNC_X86_SREGS\| \
	KVM_SYNC_X86_EVENTS)

	/* kvm_sync_regs struct included by kvm_run struct */
	struct kvm_sync_regs {
	/* Members of this structure are potentially malicious.
	* Care must be taken by code reading, esp. interpreting,
	* data fields from them inside KVM to prevent TOCTOU and
	* double-fetch types of vulnerabilities.
	*/
	struct kvm_regs regs;
	struct kvm_sregs sregs;
	struct kvm_vcpu_events events;
	};

	#define KVM_X86_QUIRK_LINT0_REENABLED (1 << 0)
	#define KVM_X86_QUIRK_CD_NW_CLEARED (1 << 1)
	#define KVM_X86_QUIRK_LAPIC_MMIO_HOLE (1 << 2)
	#define KVM_X86_QUIRK_OUT_7E_INC_RIP (1 << 3)
	#define KVM_X86_QUIRK_MISC_ENABLE_NO_MWAIT (1 << 4)
	#define KVM_X86_QUIRK_FIX_HYPERCALL_INSN (1 << 5)
	#define KVM_X86_QUIRK_MWAIT_NEVER_UD_FAULTS (1 << 6)

	#define KVM_STATE_NESTED_FORMAT_VMX 0
	#define KVM_STATE_NESTED_FORMAT_SVM 1

	#define KVM_STATE_NESTED_GUEST_MODE 0x00000001
	#define KVM_STATE_NESTED_RUN_PENDING 0x00000002
	#define KVM_STATE_NESTED_EVMCS 0x00000004
	#define KVM_STATE_NESTED_MTF_PENDING 0x00000008
	#define KVM_STATE_NESTED_GIF_SET 0x00000100

	#define KVM_STATE_NESTED_SMM_GUEST_MODE 0x00000001
	#define KVM_STATE_NESTED_SMM_VMXON 0x00000002

	#define KVM_STATE_NESTED_VMX_VMCS_SIZE 0x1000

	#define KVM_STATE_NESTED_SVM_VMCB_SIZE 0x1000

	#define KVM_STATE_VMX_PREEMPTION_TIMER_DEADLINE 0x00000001

	/* attributes for system fd (group 0) */
	#define KVM_X86_XCOMP_GUEST_SUPP 0

	struct kvm_vmx_nested_state_data {
	__u8 vmcs12[KVM_STATE_NESTED_VMX_VMCS_SIZE];
	__u8 shadow_vmcs12[KVM_STATE_NESTED_VMX_VMCS_SIZE];
	};

	struct kvm_vmx_nested_state_hdr {
	__u64 vmxon_pa;
	__u64 vmcs12_pa;

	struct {
	__u16 flags;
	} smm;

	__u16 pad;

	__u32 flags;
	__u64 preemption_timer_deadline;
	};

	struct kvm_svm_nested_state_data {
	/* Save area only used if KVM_STATE_NESTED_RUN_PENDING. */
	__u8 vmcb12[KVM_STATE_NESTED_SVM_VMCB_SIZE];
	};

	struct kvm_svm_nested_state_hdr {
	__u64 vmcb_pa;
	};

	/* for KVM_CAP_NESTED_STATE */
	struct kvm_nested_state {
	__u16 flags;
	__u16 format;
	__u32 size;

	union {
	struct kvm_vmx_nested_state_hdr vmx;
	struct kvm_svm_nested_state_hdr svm;

	/* Pad the header to 128 bytes. */
	__u8 pad[120];
	} hdr;

	/*
	* Define data region as 0 bytes to preserve backwards-compatability
	* to old definition of kvm_nested_state in order to avoid changing
	* KVM_{GET,PUT}_NESTED_STATE ioctl values.
	*/
	union {
	struct kvm_vmx_nested_state_data vmx[0];
	struct kvm_svm_nested_state_data svm[0];
	} data;
	};

	/* for KVM_CAP_PMU_EVENT_FILTER */
	struct kvm_pmu_event_filter {
	__u32 action;
	__u32 nevents;
	__u32 fixed_counter_bitmap;
	__u32 flags;
	__u32 pad[4];
	__u64 events[];
	};

	#define KVM_PMU_EVENT_ALLOW 0
	#define KVM_PMU_EVENT_DENY 1

	/* for KVM_{GET,SET,HAS}_DEVICE_ATTR */
	#define KVM_VCPU_TSC_CTRL 0 /* control group for the timestamp counter (TSC) */
	#define KVM_VCPU_TSC_OFFSET 0 /* attribute for the TSC offset */

	#endif /* _ASM_X86_KVM_H */