On Sunday 08 March 2009 22:30:16 Avi Kivity wrote: > Matthew Wilcox wrote: > > On Tue, Feb 24, 2009 at 12:47:38PM +0200, Avi Kivity wrote: > >> Do those patches allow using a VF on the host (in other words, does the > >> kernel emulate config space accesses)? > > > > SR-IOV hardware handles config space accesses to virtual functions. No > > kernel changes needed for that aspect of it. > > Patches 2 and 3 of the patchset that enables SR/IOV in kvm [1] suggest > that at the config space is only partially implemented. > > [1] http://thread.gmane.org/gmane.comp.emulators.kvm.devel/29034 Hi Avi For kernel side, patch 2 is not necessary. Because kernel would read VID/DID directly from pci_dev rather than configuration space, which have been set properly already. And very sorry, for the patch 3. We haven't known exactly what's happened. I think the problem is caused by guest driver, but didn't confirm(and I have some misunderstandings with ZhaoYu for I thought we are agree on the reason, but after confirm with him, he didn't agree). I am doing more investigations to find the real cause. -- regards Yang, Sheng -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
