286 lines
7.1 KiB
C
286 lines
7.1 KiB
C
#ifndef __LINUX_KVM_H
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#define __LINUX_KVM_H
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/*
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* Userspace interface for /dev/kvm - kernel based virtual machine
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*
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* Note: you must update KVM_API_VERSION if you change this interface.
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*/
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#include <asm/types.h>
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#include <linux/ioctl.h>
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#include <asm/kvm.h>
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#define KVM_API_VERSION 12
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/* for KVM_CREATE_MEMORY_REGION */
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struct kvm_memory_region {
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__u32 slot;
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__u32 flags;
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__u64 guest_phys_addr;
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__u64 memory_size; /* bytes */
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};
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/* for KVM_SET_USER_MEMORY_REGION */
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struct kvm_userspace_memory_region {
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__u32 slot;
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__u32 flags;
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__u64 guest_phys_addr;
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__u64 memory_size; /* bytes */
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__u64 userspace_addr; /* start of the userspace allocated memory */
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};
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/* for kvm_memory_region::flags */
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#define KVM_MEM_LOG_DIRTY_PAGES 1UL
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/* for KVM_IRQ_LINE */
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struct kvm_irq_level {
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/*
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* ACPI gsi notion of irq.
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* For IA-64 (APIC model) IOAPIC0: irq 0-23; IOAPIC1: irq 24-47..
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* For X86 (standard AT mode) PIC0/1: irq 0-15. IOAPIC0: 0-23..
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*/
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__u32 irq;
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__u32 level;
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};
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struct kvm_irqchip {
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__u32 chip_id;
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__u32 pad;
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union {
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char dummy[512]; /* reserving space */
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#ifdef CONFIG_X86
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struct kvm_pic_state pic;
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#endif
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#if defined(CONFIG_X86) || defined(CONFIG_IA64)
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struct kvm_ioapic_state ioapic;
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#endif
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} chip;
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};
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#define KVM_EXIT_UNKNOWN 0
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#define KVM_EXIT_EXCEPTION 1
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#define KVM_EXIT_IO 2
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#define KVM_EXIT_HYPERCALL 3
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#define KVM_EXIT_DEBUG 4
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#define KVM_EXIT_HLT 5
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#define KVM_EXIT_MMIO 6
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#define KVM_EXIT_IRQ_WINDOW_OPEN 7
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#define KVM_EXIT_SHUTDOWN 8
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#define KVM_EXIT_FAIL_ENTRY 9
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#define KVM_EXIT_INTR 10
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#define KVM_EXIT_SET_TPR 11
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#define KVM_EXIT_TPR_ACCESS 12
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/* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */
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struct kvm_run {
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/* in */
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__u8 request_interrupt_window;
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__u8 padding1[7];
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/* out */
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__u32 exit_reason;
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__u8 ready_for_interrupt_injection;
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__u8 if_flag;
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__u8 padding2[2];
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/* in (pre_kvm_run), out (post_kvm_run) */
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__u64 cr8;
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__u64 apic_base;
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union {
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/* KVM_EXIT_UNKNOWN */
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struct {
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__u64 hardware_exit_reason;
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} hw;
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/* KVM_EXIT_FAIL_ENTRY */
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struct {
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__u64 hardware_entry_failure_reason;
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} fail_entry;
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/* KVM_EXIT_EXCEPTION */
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struct {
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__u32 exception;
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__u32 error_code;
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} ex;
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/* KVM_EXIT_IO */
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struct kvm_io {
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#define KVM_EXIT_IO_IN 0
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#define KVM_EXIT_IO_OUT 1
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__u8 direction;
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__u8 size; /* bytes */
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__u16 port;
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__u32 count;
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__u64 data_offset; /* relative to kvm_run start */
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} io;
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struct {
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} debug;
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/* KVM_EXIT_MMIO */
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struct {
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__u64 phys_addr;
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__u8 data[8];
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__u32 len;
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__u8 is_write;
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} mmio;
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/* KVM_EXIT_HYPERCALL */
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struct {
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__u64 nr;
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__u64 args[6];
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__u64 ret;
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__u32 longmode;
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__u32 pad;
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} hypercall;
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/* KVM_EXIT_TPR_ACCESS */
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struct {
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__u64 rip;
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__u32 is_write;
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__u32 pad;
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} tpr_access;
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/* Fix the size of the union. */
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char padding[256];
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};
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};
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/* for KVM_TRANSLATE */
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struct kvm_translation {
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/* in */
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__u64 linear_address;
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/* out */
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__u64 physical_address;
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__u8 valid;
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__u8 writeable;
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__u8 usermode;
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__u8 pad[5];
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};
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/* for KVM_INTERRUPT */
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struct kvm_interrupt {
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/* in */
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__u32 irq;
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};
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struct kvm_breakpoint {
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__u32 enabled;
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__u32 padding;
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__u64 address;
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};
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/* for KVM_DEBUG_GUEST */
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struct kvm_debug_guest {
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/* int */
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__u32 enabled;
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__u32 pad;
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struct kvm_breakpoint breakpoints[4];
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__u32 singlestep;
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};
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/* for KVM_GET_DIRTY_LOG */
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struct kvm_dirty_log {
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__u32 slot;
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__u32 padding;
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union {
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void __user *dirty_bitmap; /* one bit per page */
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__u64 padding;
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};
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};
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/* for KVM_SET_SIGNAL_MASK */
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struct kvm_signal_mask {
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__u32 len;
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__u8 sigset[0];
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};
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/* for KVM_TPR_ACCESS_REPORTING */
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struct kvm_tpr_access_ctl {
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__u32 enabled;
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__u32 flags;
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__u32 reserved[8];
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};
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/* for KVM_SET_VAPIC_ADDR */
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struct kvm_vapic_addr {
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__u64 vapic_addr;
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};
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#define KVMIO 0xAE
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/*
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* ioctls for /dev/kvm fds:
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*/
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#define KVM_GET_API_VERSION _IO(KVMIO, 0x00)
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#define KVM_CREATE_VM _IO(KVMIO, 0x01) /* returns a VM fd */
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#define KVM_GET_MSR_INDEX_LIST _IOWR(KVMIO, 0x02, struct kvm_msr_list)
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/*
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* Check if a kvm extension is available. Argument is extension number,
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* return is 1 (yes) or 0 (no, sorry).
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*/
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#define KVM_CHECK_EXTENSION _IO(KVMIO, 0x03)
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/*
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* Get size for mmap(vcpu_fd)
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*/
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#define KVM_GET_VCPU_MMAP_SIZE _IO(KVMIO, 0x04) /* in bytes */
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/*
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* Extension capability list.
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*/
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#define KVM_CAP_IRQCHIP 0
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#define KVM_CAP_HLT 1
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#define KVM_CAP_MMU_SHADOW_CACHE_CONTROL 2
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#define KVM_CAP_USER_MEMORY 3
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#define KVM_CAP_SET_TSS_ADDR 4
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#define KVM_CAP_EXT_CPUID 5
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#define KVM_CAP_VAPIC 6
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/*
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* ioctls for VM fds
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*/
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#define KVM_SET_MEMORY_REGION _IOW(KVMIO, 0x40, struct kvm_memory_region)
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#define KVM_SET_NR_MMU_PAGES _IO(KVMIO, 0x44)
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#define KVM_GET_NR_MMU_PAGES _IO(KVMIO, 0x45)
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#define KVM_SET_USER_MEMORY_REGION _IOW(KVMIO, 0x46,\
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struct kvm_userspace_memory_region)
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#define KVM_SET_TSS_ADDR _IO(KVMIO, 0x47)
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/*
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* KVM_CREATE_VCPU receives as a parameter the vcpu slot, and returns
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* a vcpu fd.
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*/
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#define KVM_CREATE_VCPU _IO(KVMIO, 0x41)
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#define KVM_GET_DIRTY_LOG _IOW(KVMIO, 0x42, struct kvm_dirty_log)
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#define KVM_SET_MEMORY_ALIAS _IOW(KVMIO, 0x43, struct kvm_memory_alias)
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#define KVM_GET_SUPPORTED_CPUID _IOWR(KVMIO, 0x48, struct kvm_cpuid2)
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/* Device model IOC */
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#define KVM_CREATE_IRQCHIP _IO(KVMIO, 0x60)
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#define KVM_IRQ_LINE _IOW(KVMIO, 0x61, struct kvm_irq_level)
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#define KVM_GET_IRQCHIP _IOWR(KVMIO, 0x62, struct kvm_irqchip)
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#define KVM_SET_IRQCHIP _IOR(KVMIO, 0x63, struct kvm_irqchip)
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/*
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* ioctls for vcpu fds
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*/
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#define KVM_RUN _IO(KVMIO, 0x80)
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#define KVM_GET_REGS _IOR(KVMIO, 0x81, struct kvm_regs)
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#define KVM_SET_REGS _IOW(KVMIO, 0x82, struct kvm_regs)
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#define KVM_GET_SREGS _IOR(KVMIO, 0x83, struct kvm_sregs)
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#define KVM_SET_SREGS _IOW(KVMIO, 0x84, struct kvm_sregs)
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#define KVM_TRANSLATE _IOWR(KVMIO, 0x85, struct kvm_translation)
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#define KVM_INTERRUPT _IOW(KVMIO, 0x86, struct kvm_interrupt)
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#define KVM_DEBUG_GUEST _IOW(KVMIO, 0x87, struct kvm_debug_guest)
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#define KVM_GET_MSRS _IOWR(KVMIO, 0x88, struct kvm_msrs)
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#define KVM_SET_MSRS _IOW(KVMIO, 0x89, struct kvm_msrs)
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#define KVM_SET_CPUID _IOW(KVMIO, 0x8a, struct kvm_cpuid)
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#define KVM_SET_SIGNAL_MASK _IOW(KVMIO, 0x8b, struct kvm_signal_mask)
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#define KVM_GET_FPU _IOR(KVMIO, 0x8c, struct kvm_fpu)
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#define KVM_SET_FPU _IOW(KVMIO, 0x8d, struct kvm_fpu)
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#define KVM_GET_LAPIC _IOR(KVMIO, 0x8e, struct kvm_lapic_state)
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#define KVM_SET_LAPIC _IOW(KVMIO, 0x8f, struct kvm_lapic_state)
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#define KVM_SET_CPUID2 _IOW(KVMIO, 0x90, struct kvm_cpuid2)
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#define KVM_GET_CPUID2 _IOWR(KVMIO, 0x91, struct kvm_cpuid2)
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/* Available with KVM_CAP_VAPIC */
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#define KVM_TPR_ACCESS_REPORTING _IOWR(KVMIO, 0x92, struct kvm_tpr_access_ctl)
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/* Available with KVM_CAP_VAPIC */
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#define KVM_SET_VAPIC_ADDR _IOW(KVMIO, 0x93, struct kvm_vapic_addr)
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#endif
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