[dpdk-dev] Having troubles binding an SR-IOV VF to uio_pci_generic on Amazon instance

[Michael S. Tsirkin]

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