tools/testing/selftests/kvm/include/arm64/vgic.h

File Facts

System

Linux kernel

Corpus path

tools/testing/selftests/kvm/include/arm64/vgic.h

Extension

.h

Size

1190 bytes

Lines

41

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.

• Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/kvm.h
• kvm_util.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef SELFTEST_KVM_VGIC_H
#define SELFTEST_KVM_VGIC_H

#include <linux/kvm.h>

#include "kvm_util.h"

#define REDIST_REGION_ATTR_ADDR(count, base, flags, index) \
	(((u64)(count) << 52) | \
	((u64)((base) >> 16) << 16) | \
	((u64)(flags) << 12) | \
	index)

bool kvm_supports_vgic_v3(void);
int __vgic_v3_setup(struct kvm_vm *vm, unsigned int nr_vcpus, u32 nr_irqs);
void __vgic_v3_init(int fd);
int vgic_v3_setup(struct kvm_vm *vm, unsigned int nr_vcpus, u32 nr_irqs);

#define VGIC_MAX_RESERVED	1023

void kvm_irq_set_level_info(int gic_fd, u32 intid, int level);
int _kvm_irq_set_level_info(int gic_fd, u32 intid, int level);

void kvm_arm_irq_line(struct kvm_vm *vm, u32 intid, int level);
int _kvm_arm_irq_line(struct kvm_vm *vm, u32 intid, int level);

/* The vcpu arg only applies to private interrupts. */
void kvm_irq_write_ispendr(int gic_fd, u32 intid, struct kvm_vcpu *vcpu);
void kvm_irq_write_isactiver(int gic_fd, u32 intid, struct kvm_vcpu *vcpu);

#define KVM_IRQCHIP_NUM_PINS	(1020 - 32)

int vgic_its_setup(struct kvm_vm *vm);

#endif // SELFTEST_KVM_VGIC_H

Annotation

• Immediate include surface: `linux/kvm.h`, `kvm_util.h`.
• Atlas domain: Support Tooling And Documentation / tools.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.