VirtIO ring descriptors. More...

#include <virtio_ring.h>

Data Fields
uint64_t	addr
	Address (guest-physical).
uint32_t	len
	Length.
uint16_t	flags
	Flags relevant to the descriptors.
uint16_t	next
	We chain unused descriptors via this, too.

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:

lib/include/openamp/virtio_ring.h