Messages in this thread | | | Subject | Re: [PATCH 0/3] Fix virtio-blk issue with SWIOTLB | From | Jason Wang <> | Date | Mon, 14 Jan 2019 17:41:56 +0800 |
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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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