382 строки
7.5 KiB
C
382 строки
7.5 KiB
C
/* 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 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
|
|
|
|
struct kvm_memory_alias {
|
|
__u32 slot; /* this has a different namespace than memory slots */
|
|
__u32 flags;
|
|
__u64 guest_phys_addr;
|
|
__u64 memory_size;
|
|
__u64 target_phys_addr;
|
|
};
|
|
|
|
/* 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)
|
|
|
|
/* 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];
|
|
};
|
|
|
|
/* 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[0];
|
|
};
|
|
|
|
/* for KVM_GET_MSR_INDEX_LIST */
|
|
struct kvm_msr_list {
|
|
__u32 nmsrs; /* number of msrs in entries */
|
|
__u32 indices[0];
|
|
};
|
|
|
|
|
|
struct kvm_cpuid_entry {
|
|
__u32 function;
|
|
__u32 eax;
|
|
__u32 ebx;
|
|
__u32 ecx;
|
|
__u32 edx;
|
|
__u32 padding;
|
|
};
|
|
|
|
/* for KVM_SET_CPUID */
|
|
struct kvm_cpuid {
|
|
__u32 nent;
|
|
__u32 padding;
|
|
struct kvm_cpuid_entry entries[0];
|
|
};
|
|
|
|
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[0];
|
|
};
|
|
|
|
/* 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
|
|
|
|
/* 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
|
|
|
|
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
|
|
|
|
/* 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 pad;
|
|
__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;
|
|
__u32 reserved[9];
|
|
};
|
|
|
|
/* for KVM_GET/SET_DEBUGREGS */
|
|
struct kvm_debugregs {
|
|
__u64 db[4];
|
|
__u64 dr6;
|
|
__u64 dr7;
|
|
__u64 flags;
|
|
__u64 reserved[9];
|
|
};
|
|
|
|
/* for KVM_CAP_XSAVE */
|
|
struct kvm_xsave {
|
|
__u32 region[1024];
|
|
};
|
|
|
|
#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)
|
|
|
|
#endif /* _ASM_X86_KVM_H */
|