On 2019/10/25 下午6:12, Tian, Kevin wrote:
From: Jason Wang [mailto:jasowang@xxxxxxxxxx]
Sent: Friday, October 25, 2019 5:49 PM
On 2019/10/24 下午8:34, Liu Yi L wrote:
Shared virtual address (SVA), a.k.a, Shared virtual memory (SVM) on Intel
platforms allow address space sharing between device DMA and
applications.
Interesting, so the below figure demonstrates the case of VM. I wonder
how much differences if we compare it with doing SVM between device
and
an ordinary process (e.g dpdk)?
Thanks
One difference is that ordinary process requires only stage-1 translation,
while VM requires nested translation.
A silly question, then I believe there's no need for VFIO DMA API in
this case consider the page table is shared between MMU and IOMMU?
Thanks
