Hi: I am trying to understand the current pass-through device in Xen. To my understanding, Xen can hide a PCI device from Dom 0 and exclusively assign it to a guest OS (dom U), right? Does Xen support to assign one device to multiple guest OSes? Does current pass through require Intel -VT or AMD SVM? Where is the source file for the pass-through function? Is it in xen/drivers/passthrough? BTW: I tried to install OpenSUSE with Xen on QEMU 0.9.1 for Windows but cannot boot into Xen, anyone has similar or successful experiences? Thanks, Jiang _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Pasi Kärkkäinen
2009-Jan-27 20:48 UTC
Re: [Xen-devel] Questions about PCI passthrough in Xen
On Tue, Jan 27, 2009 at 03:10:16PM -0500, River Wang wrote:> Hi: > > I am trying to understand the current pass-through device in Xen. To > my understanding, Xen can hide a PCI device from Dom 0 and exclusively > assign it to a guest OS (dom U), right? > Does Xen support to assign one device to multiple guest OSes? Does > current pass through require Intel -VT or AMD SVM? Where is the source > file for the pass-through function? Is it in xen/drivers/passthrough? >Xen PCI passthrough to PV guests is supported without VT/VT-d, and has been available for a while.. Xen PCI passthrough to HVM guests (Windows) requires VT-d (in addition to VT) and more recent version of Xen. -- Pasi _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel