> From: Jason Gunthorpe <jgg@xxxxxxxxxx> > Sent: Tuesday, October 20, 2020 10:02 PM [...] > > > Whoever provides the vIOMMU emulation and relays the page fault to the > guest > > > has to translate the RID - > > > > that's the point. But the device info (especially the sub-device info) is > > within the passthru framework (e.g. VFIO). So page fault reporting needs > > to go through passthru framework. > > > > > what does that have to do with VFIO? > > > > > > How will VPDA provide the vIOMMU emulation? > > > > a pardon here. I believe vIOMMU emulation should be based on IOMMU > vendor > > specification, right? you may correct me if I'm missing anything. > > I'm asking how will VDPA translate the RID when VDPA triggers a page > fault that has to be relayed to the guest. VDPA also has virtual PCI > devices it creates. I've got a question. Does vDPA work with vIOMMU so far? e.g. Intel vIOMMU or other type vIOMMU. Regards, Yi Liu
