include/linux/kvm_irqfd.h

Source file repositories/reference/linux-study-clean/include/linux/kvm_irqfd.h

File Facts

System
Linux kernel
Corpus path
include/linux/kvm_irqfd.h
Extension
.h
Size
2112 bytes
Lines
68
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

struct kvm_kernel_irqfd_resampler {
	struct kvm *kvm;
	/*
	 * List of resampling struct _irqfd objects sharing this gsi.
	 * RCU list modified under kvm->irqfds.resampler_lock
	 */
	struct list_head list;
	struct kvm_irq_ack_notifier notifier;
	/*
	 * Entry in list of kvm->irqfd.resampler_list.  Use for sharing
	 * resamplers among irqfds on the same gsi.
	 * RCU list modified under kvm->irqfds.resampler_lock
	 */
	struct list_head link;
};

struct kvm_kernel_irqfd {
	/* Used for MSI fast-path */
	struct kvm *kvm;
	wait_queue_entry_t wait;
	/* Update side is protected by irqfds.lock */
	struct kvm_kernel_irq_routing_entry irq_entry;
	seqcount_spinlock_t irq_entry_sc;
	/* Used for level IRQ fast-path */
	int gsi;
	struct work_struct inject;
	/* The resampler used by this irqfd (resampler-only) */
	struct kvm_kernel_irqfd_resampler *resampler;
	/* Eventfd notified on resample (resampler-only) */
	struct eventfd_ctx *resamplefd;
	/* Entry in list of irqfds for a resampler (resampler-only) */
	struct list_head resampler_link;
	/* Used for setup/shutdown */
	struct eventfd_ctx *eventfd;
	struct list_head list;
	struct work_struct shutdown;
	struct irq_bypass_consumer consumer;
	struct irq_bypass_producer *producer;

	struct kvm_vcpu *irq_bypass_vcpu;
	struct list_head vcpu_list;
	void *irq_bypass_data;
};

#endif /* __LINUX_KVM_IRQFD_H */

Annotation

Implementation Notes