VirtIO ring descriptors. More...

#include <virtio_ring.h>

Data Fields
uint64_t	addr
	Address (guest-physical) More...

uint32_t	len
	Length. More...

uint16_t	flags
	Flags relevant to the descriptors. More...

uint16_t	next
	We chain unused descriptors via this, too. More...

Detailed Description

VirtIO ring descriptors.

The descriptor table refers to the buffers the driver is using for the device. addr is a physical address, and the buffers can be chained via next. Each descriptor describes a buffer which is read-only for the device (“device-readable”) or write-only for the device (“device-writable”), but a chain of descriptors can contain both device-readable and device-writable buffers.

Field Documentation

◆ addr

uint64_t vring_desc::addr

Address (guest-physical)

◆ flags

uint16_t vring_desc::flags

Flags relevant to the descriptors.

◆ len

uint32_t vring_desc::len

Length.

◆ next

uint16_t vring_desc::next

We chain unused descriptors via this, too.

The documentation for this struct was generated from the following file: