This patch introduces a PCI DMA API and some generic code to support other DMA
APIs. It introduces a IOVector type that contains physical address/length
pairs. These vectors can be translated by the PCI layer and passed either to
generic copying functions or directly to the block or network subsy
Avi Kivity wrote:
> Anthony Liguori wrote:
>> This patch introduces a PCI DMA API and some generic code to support
>> other DMA
>> APIs. Two types are introduced: PhysIOVector and IOVector. A DMA API
>> maps a PhysIOVector, which is composed of target_phys_addr_t, into an
>> IOVector,
>> which
Anthony Liguori wrote:
> This patch introduces a PCI DMA API and some generic code to support other DMA
> APIs. Two types are introduced: PhysIOVector and IOVector. A DMA API
> maps a PhysIOVector, which is composed of target_phys_addr_t, into an
> IOVector,
> which is composed of void *.
>
> Th
This patch introduces a PCI DMA API and some generic code to support other DMA
APIs. Two types are introduced: PhysIOVector and IOVector. A DMA API
maps a PhysIOVector, which is composed of target_phys_addr_t, into an IOVector,
which is composed of void *.
This enables zero-copy IO to be preform
