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/const.h>
#include <linux/bits.h>
#include <linux/types.h>
#include <linux/ioctl.h>
#include <linux/stddef.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
#define CP_VECTOR 21

#define HV_VECTOR 28
#define VC_VECTOR 29
#define SX_VECTOR 30

/* 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_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

/* 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)
#define KVM_RUN_X86_GUEST_MODE   (1 << 2)

/* 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 {
#ifndef __KERNEL__
#define KVM_MSR_FILTER_DEFAULT_ALLOW (0 << 0)
#endif
#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_X86_REG_TYPE_MSR		2
#define KVM_X86_REG_TYPE_KVM		3

#define KVM_X86_KVM_REG_SIZE(reg)						\
({										\
	reg == KVM_REG_GUEST_SSP ? KVM_REG_SIZE_U64 : 0;			\
})

#define KVM_X86_REG_TYPE_SIZE(type, reg)					\
({										\
	__u64 type_size = (__u64)type << 32;					\
										\
	type_size |= type == KVM_X86_REG_TYPE_MSR ? KVM_REG_SIZE_U64 :		\
		     type == KVM_X86_REG_TYPE_KVM ? KVM_X86_KVM_REG_SIZE(reg) :	\
		     0;								\
	type_size;								\
})

#define KVM_X86_REG_ID(type, index)				\
	(KVM_REG_X86 | KVM_X86_REG_TYPE_SIZE(type, index) | index)

#define KVM_X86_REG_MSR(index)					\
	KVM_X86_REG_ID(KVM_X86_REG_TYPE_MSR, index)
#define KVM_X86_REG_KVM(index)					\
	KVM_X86_REG_ID(KVM_X86_REG_TYPE_KVM, index)

/* KVM-defined registers starting from 0 */
#define KVM_REG_GUEST_SSP	0

#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_X86_QUIRK_SLOT_ZAP_ALL		(1 << 7)
#define KVM_X86_QUIRK_STUFF_FEATURE_MSRS	(1 << 8)
#define KVM_X86_QUIRK_IGNORE_GUEST_PAT		(1 << 9)

#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

/* vendor-independent attributes for system fd (group 0) */
#define KVM_X86_GRP_SYSTEM		0
#  define KVM_X86_XCOMP_GUEST_SUPP	0

/* vendor-specific groups and attributes for system fd */
#define KVM_X86_GRP_SEV			1
#  define KVM_X86_SEV_VMSA_FEATURES	0
#  define KVM_X86_SNP_POLICY_BITS	1

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 {
		__DECLARE_FLEX_ARRAY(struct kvm_vmx_nested_state_data, vmx);
		__DECLARE_FLEX_ARRAY(struct kvm_svm_nested_state_data, svm);
	} 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

#define KVM_PMU_EVENT_FLAG_MASKED_EVENTS _BITUL(0)
#define KVM_PMU_EVENT_FLAGS_VALID_MASK (KVM_PMU_EVENT_FLAG_MASKED_EVENTS)

/* for KVM_CAP_MCE */
struct kvm_x86_mce {
	__u64 status;
	__u64 addr;
	__u64 misc;
	__u64 mcg_status;
	__u8 bank;
	__u8 pad1[7];
	__u64 pad2[3];
};

/* for KVM_CAP_XEN_HVM */
#define KVM_XEN_HVM_CONFIG_HYPERCALL_MSR	(1 << 0)
#define KVM_XEN_HVM_CONFIG_INTERCEPT_HCALL	(1 << 1)
#define KVM_XEN_HVM_CONFIG_SHARED_INFO		(1 << 2)
#define KVM_XEN_HVM_CONFIG_RUNSTATE		(1 << 3)
#define KVM_XEN_HVM_CONFIG_EVTCHN_2LEVEL	(1 << 4)
#define KVM_XEN_HVM_CONFIG_EVTCHN_SEND		(1 << 5)
#define KVM_XEN_HVM_CONFIG_RUNSTATE_UPDATE_FLAG	(1 << 6)
#define KVM_XEN_HVM_CONFIG_PVCLOCK_TSC_UNSTABLE	(1 << 7)
#define KVM_XEN_HVM_CONFIG_SHARED_INFO_HVA	(1 << 8)

#define KVM_XEN_MSR_MIN_INDEX			0x40000000u
#define KVM_XEN_MSR_MAX_INDEX			0x4fffffffu

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];
};

struct kvm_xen_hvm_attr {
	__u16 type;
	__u16 pad[3];
	union {
		__u8 long_mode;
		__u8 vector;
		__u8 runstate_update_flag;
		union {
			__u64 gfn;
#define KVM_XEN_INVALID_GFN ((__u64)-1)
			__u64 hva;
		} shared_info;
		struct {
			__u32 send_port;
			__u32 type; /* EVTCHNSTAT_ipi / EVTCHNSTAT_interdomain */
			__u32 flags;
#define KVM_XEN_EVTCHN_DEASSIGN		(1 << 0)
#define KVM_XEN_EVTCHN_UPDATE		(1 << 1)
#define KVM_XEN_EVTCHN_RESET		(1 << 2)
			/*
			 * Events sent by the guest are either looped back to
			 * the guest itself (potentially on a different port#)
			 * or signalled via an eventfd.
			 */
			union {
				struct {
					__u32 port;
					__u32 vcpu;
					__u32 priority;
				} port;
				struct {
					__u32 port; /* Zero for eventfd */
					__s32 fd;
				} eventfd;
				__u32 padding[4];
			} deliver;
		} evtchn;
		__u32 xen_version;
		__u64 pad[8];
	} u;
};


/* Available with KVM_CAP_XEN_HVM / KVM_XEN_HVM_CONFIG_SHARED_INFO */
#define KVM_XEN_ATTR_TYPE_LONG_MODE		0x0
#define KVM_XEN_ATTR_TYPE_SHARED_INFO		0x1
#define KVM_XEN_ATTR_TYPE_UPCALL_VECTOR		0x2
/* Available with KVM_CAP_XEN_HVM / KVM_XEN_HVM_CONFIG_EVTCHN_SEND */
#define KVM_XEN_ATTR_TYPE_EVTCHN		0x3
#define KVM_XEN_ATTR_TYPE_XEN_VERSION		0x4
/* Available with KVM_CAP_XEN_HVM / KVM_XEN_HVM_CONFIG_RUNSTATE_UPDATE_FLAG */
#define KVM_XEN_ATTR_TYPE_RUNSTATE_UPDATE_FLAG	0x5
/* Available with KVM_CAP_XEN_HVM / KVM_XEN_HVM_CONFIG_SHARED_INFO_HVA */
#define KVM_XEN_ATTR_TYPE_SHARED_INFO_HVA	0x6

struct kvm_xen_vcpu_attr {
	__u16 type;
	__u16 pad[3];
	union {
		__u64 gpa;
#define KVM_XEN_INVALID_GPA ((__u64)-1)
		__u64 hva;
		__u64 pad[8];
		struct {
			__u64 state;
			__u64 state_entry_time;
			__u64 time_running;
			__u64 time_runnable;
			__u64 time_blocked;
			__u64 time_offline;
		} runstate;
		__u32 vcpu_id;
		struct {
			__u32 port;
			__u32 priority;
			__u64 expires_ns;
		} timer;
		__u8 vector;
	} u;
};

/* Available with KVM_CAP_XEN_HVM / KVM_XEN_HVM_CONFIG_SHARED_INFO */
#define KVM_XEN_VCPU_ATTR_TYPE_VCPU_INFO	0x0
#define KVM_XEN_VCPU_ATTR_TYPE_VCPU_TIME_INFO	0x1
#define KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_ADDR	0x2
#define KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_CURRENT	0x3
#define KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_DATA	0x4
#define KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_ADJUST	0x5
/* Available with KVM_CAP_XEN_HVM / KVM_XEN_HVM_CONFIG_EVTCHN_SEND */
#define KVM_XEN_VCPU_ATTR_TYPE_VCPU_ID		0x6
#define KVM_XEN_VCPU_ATTR_TYPE_TIMER		0x7
#define KVM_XEN_VCPU_ATTR_TYPE_UPCALL_VECTOR	0x8
/* Available with KVM_CAP_XEN_HVM / KVM_XEN_HVM_CONFIG_SHARED_INFO_HVA */
#define KVM_XEN_VCPU_ATTR_TYPE_VCPU_INFO_HVA	0x9

/* 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,
	/* Attestation report */
	KVM_SEV_GET_ATTESTATION_REPORT,
	/* Guest Migration Extension */
	KVM_SEV_SEND_CANCEL,

	/* Second time is the charm; improved versions of the above ioctls.  */
	KVM_SEV_INIT2,

	/* SNP-specific commands */
	KVM_SEV_SNP_LAUNCH_START = 100,
	KVM_SEV_SNP_LAUNCH_UPDATE,
	KVM_SEV_SNP_LAUNCH_FINISH,

	KVM_SEV_NR_MAX,
};

struct kvm_sev_cmd {
	__u32 id;
	__u32 pad0;
	__u64 data;
	__u32 error;
	__u32 sev_fd;
};

struct kvm_sev_init {
	__u64 vmsa_features;
	__u32 flags;
	__u16 ghcb_version;
	__u16 pad1;
	__u32 pad2[8];
};

struct kvm_sev_launch_start {
	__u32 handle;
	__u32 policy;
	__u64 dh_uaddr;
	__u32 dh_len;
	__u32 pad0;
	__u64 session_uaddr;
	__u32 session_len;
	__u32 pad1;
};

struct kvm_sev_launch_update_data {
	__u64 uaddr;
	__u32 len;
	__u32 pad0;
};


struct kvm_sev_launch_secret {
	__u64 hdr_uaddr;
	__u32 hdr_len;
	__u32 pad0;
	__u64 guest_uaddr;
	__u32 guest_len;
	__u32 pad1;
	__u64 trans_uaddr;
	__u32 trans_len;
	__u32 pad2;
};

struct kvm_sev_launch_measure {
	__u64 uaddr;
	__u32 len;
	__u32 pad0;
};

struct kvm_sev_guest_status {
	__u32 handle;
	__u32 policy;
	__u32 state;
};

struct kvm_sev_dbg {
	__u64 src_uaddr;
	__u64 dst_uaddr;
	__u32 len;
	__u32 pad0;
};

struct kvm_sev_attestation_report {
	__u8 mnonce[16];
	__u64 uaddr;
	__u32 len;
	__u32 pad0;
};

struct kvm_sev_send_start {
	__u32 policy;
	__u32 pad0;
	__u64 pdh_cert_uaddr;
	__u32 pdh_cert_len;
	__u32 pad1;
	__u64 plat_certs_uaddr;
	__u32 plat_certs_len;
	__u32 pad2;
	__u64 amd_certs_uaddr;
	__u32 amd_certs_len;
	__u32 pad3;
	__u64 session_uaddr;
	__u32 session_len;
	__u32 pad4;
};

struct kvm_sev_send_update_data {
	__u64 hdr_uaddr;
	__u32 hdr_len;
	__u32 pad0;
	__u64 guest_uaddr;
	__u32 guest_len;
	__u32 pad1;
	__u64 trans_uaddr;
	__u32 trans_len;
	__u32 pad2;
};

struct kvm_sev_receive_start {
	__u32 handle;
	__u32 policy;
	__u64 pdh_uaddr;
	__u32 pdh_len;
	__u32 pad0;
	__u64 session_uaddr;
	__u32 session_len;
	__u32 pad1;
};

struct kvm_sev_receive_update_data {
	__u64 hdr_uaddr;
	__u32 hdr_len;
	__u32 pad0;
	__u64 guest_uaddr;
	__u32 guest_len;
	__u32 pad1;
	__u64 trans_uaddr;
	__u32 trans_len;
	__u32 pad2;
};

struct kvm_sev_snp_launch_start {
	__u64 policy;
	__u8 gosvw[16];
	__u16 flags;
	__u8 pad0[6];
	__u64 pad1[4];
};

/* Kept in sync with firmware values for simplicity. */
#define KVM_SEV_PAGE_TYPE_INVALID		0x0
#define KVM_SEV_SNP_PAGE_TYPE_NORMAL		0x1
#define KVM_SEV_SNP_PAGE_TYPE_ZERO		0x3
#define KVM_SEV_SNP_PAGE_TYPE_UNMEASURED	0x4
#define KVM_SEV_SNP_PAGE_TYPE_SECRETS		0x5
#define KVM_SEV_SNP_PAGE_TYPE_CPUID		0x6

struct kvm_sev_snp_launch_update {
	__u64 gfn_start;
	__u64 uaddr;
	__u64 len;
	__u8 type;
	__u8 pad0;
	__u16 flags;
	__u32 pad1;
	__u64 pad2[4];
};

#define KVM_SEV_SNP_ID_BLOCK_SIZE	96
#define KVM_SEV_SNP_ID_AUTH_SIZE	4096
#define KVM_SEV_SNP_FINISH_DATA_SIZE	32

struct kvm_sev_snp_launch_finish {
	__u64 id_block_uaddr;
	__u64 id_auth_uaddr;
	__u8 id_block_en;
	__u8 auth_key_en;
	__u8 vcek_disabled;
	__u8 host_data[KVM_SEV_SNP_FINISH_DATA_SIZE];
	__u8 pad0[3];
	__u16 flags;
	__u64 pad1[4];
};

#define KVM_X2APIC_API_USE_32BIT_IDS            (1ULL << 0)
#define KVM_X2APIC_API_DISABLE_BROADCAST_QUIRK  (1ULL << 1)

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)

/*
 * Masked event layout.
 * Bits   Description
 * ----   -----------
 * 7:0    event select (low bits)
 * 15:8   umask match
 * 31:16  unused
 * 35:32  event select (high bits)
 * 36:54  unused
 * 55     exclude bit
 * 63:56  umask mask
 */

#define KVM_PMU_ENCODE_MASKED_ENTRY(event_select, mask, match, exclude) \
	(((event_select) & 0xFFULL) | (((event_select) & 0XF00ULL) << 24) | \
	(((mask) & 0xFFULL) << 56) | \
	(((match) & 0xFFULL) << 8) | \
	((__u64)(!!(exclude)) << 55))

#define KVM_PMU_MASKED_ENTRY_EVENT_SELECT \
	(__GENMASK_ULL(7, 0) | __GENMASK_ULL(35, 32))
#define KVM_PMU_MASKED_ENTRY_UMASK_MASK		(__GENMASK_ULL(63, 56))
#define KVM_PMU_MASKED_ENTRY_UMASK_MATCH	(__GENMASK_ULL(15, 8))
#define KVM_PMU_MASKED_ENTRY_EXCLUDE		(_BITULL(55))
#define KVM_PMU_MASKED_ENTRY_UMASK_MASK_SHIFT	(56)

/* 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 */

/* x86-specific KVM_EXIT_HYPERCALL flags. */
#define KVM_EXIT_HYPERCALL_LONG_MODE	_BITULL(0)

#define KVM_X86_DEFAULT_VM	0
#define KVM_X86_SW_PROTECTED_VM	1
#define KVM_X86_SEV_VM		2
#define KVM_X86_SEV_ES_VM	3
#define KVM_X86_SNP_VM		4
#define KVM_X86_TDX_VM		5

/* Trust Domain eXtension sub-ioctl() commands. */
enum kvm_tdx_cmd_id {
	KVM_TDX_CAPABILITIES = 0,
	KVM_TDX_INIT_VM,
	KVM_TDX_INIT_VCPU,
	KVM_TDX_INIT_MEM_REGION,
	KVM_TDX_FINALIZE_VM,
	KVM_TDX_GET_CPUID,

	KVM_TDX_CMD_NR_MAX,
};

struct kvm_tdx_cmd {
	/* enum kvm_tdx_cmd_id */
	__u32 id;
	/* flags for sub-commend. If sub-command doesn't use this, set zero. */
	__u32 flags;
	/*
	 * data for each sub-command. An immediate or a pointer to the actual
	 * data in process virtual address.  If sub-command doesn't use it,
	 * set zero.
	 */
	__u64 data;
	/*
	 * Auxiliary error code.  The sub-command may return TDX SEAMCALL
	 * status code in addition to -Exxx.
	 */
	__u64 hw_error;
};

struct kvm_tdx_capabilities {
	__u64 supported_attrs;
	__u64 supported_xfam;

	__u64 kernel_tdvmcallinfo_1_r11;
	__u64 user_tdvmcallinfo_1_r11;
	__u64 kernel_tdvmcallinfo_1_r12;
	__u64 user_tdvmcallinfo_1_r12;

	__u64 reserved[250];

	/* Configurable CPUID bits for userspace */
	struct kvm_cpuid2 cpuid;
};

struct kvm_tdx_init_vm {
	__u64 attributes;
	__u64 xfam;
	__u64 mrconfigid[6];	/* sha384 digest */
	__u64 mrowner[6];	/* sha384 digest */
	__u64 mrownerconfig[6];	/* sha384 digest */

	/* The total space for TD_PARAMS before the CPUIDs is 256 bytes */
	__u64 reserved[12];

	/*
	 * Call KVM_TDX_INIT_VM before vcpu creation, thus before
	 * KVM_SET_CPUID2.
	 * This configuration supersedes KVM_SET_CPUID2s for VCPUs because the
	 * TDX module directly virtualizes those CPUIDs without VMM.  The user
	 * space VMM, e.g. qemu, should make KVM_SET_CPUID2 consistent with
	 * those values.  If it doesn't, KVM may have wrong idea of vCPUIDs of
	 * the guest, and KVM may wrongly emulate CPUIDs or MSRs that the TDX
	 * module doesn't virtualize.
	 */
	struct kvm_cpuid2 cpuid;
};

#define KVM_TDX_MEASURE_MEMORY_REGION   _BITULL(0)

struct kvm_tdx_init_mem_region {
	__u64 source_addr;
	__u64 gpa;
	__u64 nr_pages;
};

#endif /* _ASM_X86_KVM_H */