On Wed, Sep 30, 2015 at 10:06:52PM +0300, Vlad Zolotarov wrote: > >>How would iommu > >>virtualization change anything? > >Kernel can use an iommu to limit device access to memory of > >the controlling application. > > Ok, this is obvious but what it has to do with enabling using MSI/MSI-X > interrupts support in uio_pci_generic? kernel may continue to limit the > above access with this support as well.
It could maybe. So if you write a patch to allow MSI by at the same time creating an isolated IOMMU group and blocking DMA from device in question anywhere, that sounds reasonable. -- MST
