tools/include/uapi/linux/kvm.h

Source file repositories/reference/linux-study-clean/tools/include/uapi/linux/kvm.h

File Facts

System
Linux kernel
Corpus path
tools/include/uapi/linux/kvm.h
Extension
.h
Size
51194 bytes
Lines
1664
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

struct kvm_userspace_memory_region {
	__u32 slot;
	__u32 flags;
	__u64 guest_phys_addr;
	__u64 memory_size; /* bytes */
	__u64 userspace_addr; /* start of the userspace allocated memory */
};

/* for KVM_SET_USER_MEMORY_REGION2 */
struct kvm_userspace_memory_region2 {
	__u32 slot;
	__u32 flags;
	__u64 guest_phys_addr;
	__u64 memory_size;
	__u64 userspace_addr;
	__u64 guest_memfd_offset;
	__u32 guest_memfd;
	__u32 pad1;
	__u64 pad2[14];
};

/*
 * The bit 0 ~ bit 15 of kvm_userspace_memory_region::flags are visible for
 * userspace, other bits are reserved for kvm internal use which are defined
 * in include/linux/kvm_host.h.
 */
#define KVM_MEM_LOG_DIRTY_PAGES	(1UL << 0)
#define KVM_MEM_READONLY	(1UL << 1)
#define KVM_MEM_GUEST_MEMFD	(1UL << 2)

/* for KVM_IRQ_LINE */
struct kvm_irq_level {
	/*
	 * ACPI gsi notion of irq.
	 * For IA-64 (APIC model) IOAPIC0: irq 0-23; IOAPIC1: irq 24-47..
	 * For X86 (standard AT mode) PIC0/1: irq 0-15. IOAPIC0: 0-23..
	 * For ARM: See Documentation/virt/kvm/api.rst
	 */
	union {
		__u32 irq;
		__s32 status;
	};
	__u32 level;
};


struct kvm_irqchip {
	__u32 chip_id;
	__u32 pad;
        union {
		char dummy[512];  /* reserving space */
#ifdef __KVM_HAVE_PIT
		struct kvm_pic_state pic;
#endif
#ifdef __KVM_HAVE_IOAPIC
		struct kvm_ioapic_state ioapic;
#endif
	} chip;
};

/* for KVM_CREATE_PIT2 */
struct kvm_pit_config {
	__u32 flags;
	__u32 pad[15];
};

#define KVM_PIT_SPEAKER_DUMMY     1

struct kvm_hyperv_exit {
#define KVM_EXIT_HYPERV_SYNIC          1
#define KVM_EXIT_HYPERV_HCALL          2
#define KVM_EXIT_HYPERV_SYNDBG         3
	__u32 type;
	__u32 pad1;
	union {
		struct {
			__u32 msr;
			__u32 pad2;
			__u64 control;
			__u64 evt_page;
			__u64 msg_page;
		} synic;
		struct {
			__u64 input;
			__u64 result;
			__u64 params[2];
		} hcall;
		struct {
			__u32 msr;
			__u32 pad2;

Annotation

Implementation Notes