Dor Laor wrote: > On Thu, 2008-05-08 at 12:03 +0200, Nicolas Daneau wrote: >> Hi, >> >> I saw there was an active discussion about pci passthrough support in >> KVM. I'm not a Dev, only a sys admin that need this support. As i saw >> on the KVM home page that this feature is plan for 2H2008 in the >> roadmap, I wondered if you already have a more precise time frame for >> this release? Xen already have this feature but for the rest i prfer >> KVM. As this is a key point for the final decsion (we have a Digium >> TDM11B FXO/FXS pci card for an Asterisk VM), i'm waiting for an update >> about this feature. >> > > This is feature is indeed work in progress. We have floating patches for > several solutions: > 1. Using Intel's VT-d - hw iommu support. > Patches were sent, needs some more scrubbing. The good thing is that > it can live withing the kvm module and does not have to wait for > kernel inclusion like the two below.
Nope, it uses the existing Linux VT-d support and requires patches to the existing code. It can't live entirely within the external module. Regards, Anthony Liguori > 2. PV dma - good only for Linux guests. Some locking issues needs to be > solved + get into mainline kernel (>=2.6.27) > 3. 1-1 mapping of the guest-host addresses. > Will work for any guest, no need for special hw, good only for > single guest and not 100% secure. > Needs a little more attention, worked in the past privately. > > Bottom line, soon you'll have more than one option for pci pass through > using kvm. There is no assurance we'll make it exactly in Q2. > You can help by applying patches and sending results. > Cheers, > Dor > >> Thanks for your answer >> ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
