On Thu, 2012-01-05 at 23:50 -0500, Tian Fang wrote: > Hi, > > Nested kvm is supported. Wondering if a PCI device is able to be > passed through into the nested kvm. Could some experts share some > insides? No, there's no iommu exposed to the L1 guest, so there's no way to program the iommu for the L2 guest. You would also be bouncing interrupts from the host to the L1 guest to the L2 guest, so you could expect a performance hit with each level you add. Alex -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
