mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-10-25 19:50:20 +00:00
2ff81f70b5
As we no longer emulate in userspace, this is meaningless. We don't compute it on SVM anyway. Signed-off-by: Avi Kivity <avi@qumranet.com>
305 lines
6.6 KiB
C
305 lines
6.6 KiB
C
#ifndef __LINUX_KVM_H
|
|
#define __LINUX_KVM_H
|
|
|
|
/*
|
|
* Userspace interface for /dev/kvm - kernel based virtual machine
|
|
*
|
|
* Note: this interface is considered experimental and may change without
|
|
* notice.
|
|
*/
|
|
|
|
#include <asm/types.h>
|
|
#include <linux/ioctl.h>
|
|
|
|
#define KVM_API_VERSION 12
|
|
|
|
/*
|
|
* Architectural interrupt line count, and the size of the bitmap needed
|
|
* to hold them.
|
|
*/
|
|
#define KVM_NR_INTERRUPTS 256
|
|
#define KVM_IRQ_BITMAP_SIZE_BYTES ((KVM_NR_INTERRUPTS + 7) / 8)
|
|
#define KVM_IRQ_BITMAP_SIZE(type) (KVM_IRQ_BITMAP_SIZE_BYTES / sizeof(type))
|
|
|
|
|
|
/* for KVM_CREATE_MEMORY_REGION */
|
|
struct kvm_memory_region {
|
|
__u32 slot;
|
|
__u32 flags;
|
|
__u64 guest_phys_addr;
|
|
__u64 memory_size; /* bytes */
|
|
};
|
|
|
|
/* for kvm_memory_region::flags */
|
|
#define KVM_MEM_LOG_DIRTY_PAGES 1UL
|
|
|
|
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;
|
|
};
|
|
|
|
enum kvm_exit_reason {
|
|
KVM_EXIT_UNKNOWN = 0,
|
|
KVM_EXIT_EXCEPTION = 1,
|
|
KVM_EXIT_IO = 2,
|
|
KVM_EXIT_HYPERCALL = 3,
|
|
KVM_EXIT_DEBUG = 4,
|
|
KVM_EXIT_HLT = 5,
|
|
KVM_EXIT_MMIO = 6,
|
|
KVM_EXIT_IRQ_WINDOW_OPEN = 7,
|
|
KVM_EXIT_SHUTDOWN = 8,
|
|
KVM_EXIT_FAIL_ENTRY = 9,
|
|
KVM_EXIT_INTR = 10,
|
|
};
|
|
|
|
/* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */
|
|
struct kvm_run {
|
|
/* in */
|
|
__u8 request_interrupt_window;
|
|
__u8 padding1[7];
|
|
|
|
/* out */
|
|
__u32 exit_reason;
|
|
__u8 ready_for_interrupt_injection;
|
|
__u8 if_flag;
|
|
__u8 padding2[2];
|
|
|
|
/* in (pre_kvm_run), out (post_kvm_run) */
|
|
__u64 cr8;
|
|
__u64 apic_base;
|
|
|
|
union {
|
|
/* KVM_EXIT_UNKNOWN */
|
|
struct {
|
|
__u64 hardware_exit_reason;
|
|
} hw;
|
|
/* KVM_EXIT_FAIL_ENTRY */
|
|
struct {
|
|
__u64 hardware_entry_failure_reason;
|
|
} fail_entry;
|
|
/* KVM_EXIT_EXCEPTION */
|
|
struct {
|
|
__u32 exception;
|
|
__u32 error_code;
|
|
} ex;
|
|
/* KVM_EXIT_IO */
|
|
struct kvm_io {
|
|
#define KVM_EXIT_IO_IN 0
|
|
#define KVM_EXIT_IO_OUT 1
|
|
__u8 direction;
|
|
__u8 size; /* bytes */
|
|
__u16 port;
|
|
__u32 count;
|
|
__u64 data_offset; /* relative to kvm_run start */
|
|
} io;
|
|
struct {
|
|
} debug;
|
|
/* KVM_EXIT_MMIO */
|
|
struct {
|
|
__u64 phys_addr;
|
|
__u8 data[8];
|
|
__u32 len;
|
|
__u8 is_write;
|
|
} mmio;
|
|
/* KVM_EXIT_HYPERCALL */
|
|
struct {
|
|
__u64 args[6];
|
|
__u64 ret;
|
|
__u32 longmode;
|
|
__u32 pad;
|
|
} hypercall;
|
|
};
|
|
};
|
|
|
|
/* 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_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_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_IRQ_BITMAP_SIZE(__u64)];
|
|
};
|
|
|
|
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];
|
|
};
|
|
|
|
/* for KVM_TRANSLATE */
|
|
struct kvm_translation {
|
|
/* in */
|
|
__u64 linear_address;
|
|
|
|
/* out */
|
|
__u64 physical_address;
|
|
__u8 valid;
|
|
__u8 writeable;
|
|
__u8 usermode;
|
|
__u8 pad[5];
|
|
};
|
|
|
|
/* for KVM_INTERRUPT */
|
|
struct kvm_interrupt {
|
|
/* in */
|
|
__u32 irq;
|
|
};
|
|
|
|
struct kvm_breakpoint {
|
|
__u32 enabled;
|
|
__u32 padding;
|
|
__u64 address;
|
|
};
|
|
|
|
/* for KVM_DEBUG_GUEST */
|
|
struct kvm_debug_guest {
|
|
/* int */
|
|
__u32 enabled;
|
|
__u32 pad;
|
|
struct kvm_breakpoint breakpoints[4];
|
|
__u32 singlestep;
|
|
};
|
|
|
|
/* for KVM_GET_DIRTY_LOG */
|
|
struct kvm_dirty_log {
|
|
__u32 slot;
|
|
__u32 padding;
|
|
union {
|
|
void __user *dirty_bitmap; /* one bit per page */
|
|
__u64 padding;
|
|
};
|
|
};
|
|
|
|
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];
|
|
};
|
|
|
|
/* for KVM_SET_SIGNAL_MASK */
|
|
struct kvm_signal_mask {
|
|
__u32 len;
|
|
__u8 sigset[0];
|
|
};
|
|
|
|
#define KVMIO 0xAE
|
|
|
|
/*
|
|
* ioctls for /dev/kvm fds:
|
|
*/
|
|
#define KVM_GET_API_VERSION _IO(KVMIO, 0x00)
|
|
#define KVM_CREATE_VM _IO(KVMIO, 0x01) /* returns a VM fd */
|
|
#define KVM_GET_MSR_INDEX_LIST _IOWR(KVMIO, 0x02, struct kvm_msr_list)
|
|
/*
|
|
* 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 */
|
|
|
|
/*
|
|
* ioctls for VM fds
|
|
*/
|
|
#define KVM_SET_MEMORY_REGION _IOW(KVMIO, 0x40, struct kvm_memory_region)
|
|
/*
|
|
* KVM_CREATE_VCPU receives as a parameter the vcpu slot, and returns
|
|
* a vcpu fd.
|
|
*/
|
|
#define KVM_CREATE_VCPU _IO(KVMIO, 0x41)
|
|
#define KVM_GET_DIRTY_LOG _IOW(KVMIO, 0x42, struct kvm_dirty_log)
|
|
#define KVM_SET_MEMORY_ALIAS _IOW(KVMIO, 0x43, struct kvm_memory_alias)
|
|
|
|
/*
|
|
* 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)
|
|
#define KVM_DEBUG_GUEST _IOW(KVMIO, 0x87, struct kvm_debug_guest)
|
|
#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)
|
|
|
|
#endif
|