On Sat, Sep 04, 2010 at 02:48:46AM +0200, Kenni Lund wrote: > 2010/9/3 Rodrigo Campos <rodrigo@xxxxxxxxxxx>: > > Hi! > > > > I wanted to know the status of PCI device assignment. > > > > As far as I can see in the webpage and in the mailing list, it seems to be > > working ok if you have VT-d support on the motherboard and cpu. But if it isn't > > too much trouble, I wanted some confirmation about this, since I'm not sure and > > I don't want to buy hardware to test this when there is no way it's going to > > work :) > > It highly depends on what you want to passthrough...if it's some > well-known SR-IOV server NIC, then sure, it will probably work. If you > want to passthrough various PCI devices in a regular desktop system or > workstation, then forget it. It's none of this. It's an X.25 card (there are more details on the mail I've just sent to Alex) > I've been playing that "various PCI devices in a regular desktop > system" game for the last 8 months on my HTPC. I've been running with > both stable versions of KVM as well as self-compiled versions from git > during this time. The tests I have performed were done on two > different VT-d capable boards (a Gigabyte EQ45M-S2 and a Intel > DQ57TM). I've tried to passthrough 2 PCI TV tuners (Hauppauge 500 + > Hauppauge 1300), 2 PCI USB 2.0 cards (can't remember the brands), 1 > onboard USB controller (on a Gigabyte EQ45M-S2), and finally a PCI > Express USB 3.0 card (Asrock). The only device which works correctly, > is the Hauppauge 500 card. I bought the USB 3.0 card ONLY to see if it > would help with a PCI Express card instead of the regular PCI cards I > had tested...but no, it didn't change anything. In my tests the cards > "almost works" in some cases - eg. the card gets correctly initialized > in the guest and you can start to use it, but then you'll have timing > issues, driver crashes, client program crashes, etc. etc. Ahhh, thanks for sharing your experience. I guess I will have to try then :) Thanks, Rodrigo -- 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
