On 2019/1/11 下午5:15, Joerg Roedel wrote:
On Fri, Jan 11, 2019 at 11:29:31AM +0800, Jason Wang wrote:
Just wonder if my understanding is correct IOMMU_PLATFORM must be set for
all virtio devices under AMD-SEV guests?
Yes, that is correct. Emulated DMA can only happen on the SWIOTLB
aperture, because that memory is not encrypted. The guest bounces the
data then to its encrypted memory.
Regards,
Joerg
Thanks, have you tested vhost-net in this case. I suspect it may not work
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