Re: [Qemu-devel] Intel IOMMU guest emulation and vfio-pci passthrough

2015-11-18 Thread Alex Williamson
On Wed, 2015-11-18 at 13:50 -0500, Martin Hicks wrote: > Hi, > > I've been looking at PCI passthrough using vfio-pci and hoping that it can > use the Intel IOMMU emulation in the guest to pin-pages in an on-demand > nature, rather than pinning the entire guest memory as vfio-pci does now. > Unfort

[Qemu-devel] Intel IOMMU guest emulation and vfio-pci passthrough

2015-11-18 Thread Martin Hicks
Hi, I've been looking at PCI passthrough using vfio-pci and hoping that it can use the Intel IOMMU emulation in the guest to pin-pages in an on-demand nature, rather than pinning the entire guest memory as vfio-pci does now. Unfortunately vfio-pci and the intel iommu virtualization don't seem to p