> From: Nicolin Chen <nicolinc@xxxxxxxxxx> > Sent: Saturday, April 13, 2024 11:47 AM > > This is an experimental RFC series for VIOMMU infrastructure, using NVIDIA > Tegra241 (Grace) CMDQV as a test instance. > > VIOMMU obj is used to represent a virtual interface (iommu) backed by an > underlying IOMMU's HW-accelerated feature for virtualizaion: for example, > NVIDIA's VINTF (v-interface for CMDQV) and AMD"s vIOMMU. > > VQUEUE obj is used to represent a virtual command queue (buffer) backed > by > an underlying IOMMU command queue to passthrough for VMs to use > directly: > for example, NVIDIA's Virtual Command Queue and AMD's Command Buffer. > is VCMDQ more accurate? AMD also supports fault queue passthrough then VQUEUE sounds broader than a cmd queue...
