On Fri, 18 Oct 2024 16:00:07 +0800, Jason Wang wrote:
> On Mon, Oct 14, 2024 at 11:12 AM Xuan Zhuo wrote:
> >
> > Currently, the virtio core will perform a dma operation for each
> > buffer. Although, the same page may be operated multiple times.
> >
> > In premapped mod, we can perform only one
On Mon, Oct 14, 2024 at 11:12 AM Xuan Zhuo wrote:
>
> Currently, the virtio core will perform a dma operation for each
> buffer. Although, the same page may be operated multiple times.
>
> In premapped mod, we can perform only one dma operation for the pages of
> the alloc frag. This is beneficial
Currently, the virtio core will perform a dma operation for each
buffer. Although, the same page may be operated multiple times.
In premapped mod, we can perform only one dma operation for the pages of
the alloc frag. This is beneficial for the iommu device.
kernel command line: intel_iommu=on io
