Hi Penny,
On 16/11/2021 06:31, Penny Zheng wrote:
Cases where domU needs direct-map memory map:
* IOMMU not present in the system.
* IOMMU disabled if it doesn't cover a specific device and all the guests
are trusted. Thinking a mixed scenario, where a few devices with IOMMU and
a few with
Cases where domU needs direct-map memory map:
* IOMMU not present in the system.
* IOMMU disabled if it doesn't cover a specific device and all the guests
are trusted. Thinking a mixed scenario, where a few devices with IOMMU and
a few without, then guest DMA security still could not be totally
