But for VT-c, not VT-d. Does VT-c NIC require SR-IOV in bios, or VT-c NIC can be use only with VT-d, without SR-IOV feature.
-----Message d'origine----- De : James Bulpin [mailto:[email protected]] Envoyé : 22 octobre 2012 08:16 À : Melvin B. Cc : [email protected] Objet : RE: [Xen-API] PCI passthrough limit of device? (Adding the list back to CC - please don't remove the list; by keeping the discussion public others may be able to benefit from the discussion.) Melvin wrote: > My last question is about intel VT-c and SR-IOV NIC. > If SR-IOV NIC require a Motherboard feature other than VT-d ? Your BIOS must support SR-IOV. > And if VT-c is for device only, require only a motherboard with VT-d? You can perform PCI pass-through to a PV guest without VT-d/IOMMU but that is unsafe (e.g. the device could DMA to other guests' memory) so VT-d is recommended. If you want to pass-through to a HVM guest you must use VT-d/IOMMU. See http://wiki.xen.org/wiki/Xen_PCI_Passthrough for more detail. Cheers, James _______________________________________________ Xen-api mailing list [email protected] http://lists.xen.org/cgi-bin/mailman/listinfo/xen-api
