I am having hard time to get the SR-IOV to work on fc14/debian with xen 4.0.1. I am using a xen 2.6,32-stable kernel. I have enabled my kernel with all the default options needed for PCI passthrough and DOM0. When I launch a DOM-U kernel with a PF (physical function) mapped, I can see the eth0 device I am able to us it. But when I launch a DOM-U kernel with a VFx (virtual function) mapped, I can see the eth0 device but cannot use it. I cannot ping anything and it is not usable. May be I am missing something pieces. Did anyone have a similar problem? Am I missing a kernel option / configuration option? I am using intel 8-port 82576(SR-IOV capable) card. I have gone through the xen documentation and it does not start anything about PCI passthru not working in 2.6.32. I synced up with 2.6.27 sources and found that "drivers/xen/pciback" is missing. When I sync to 2.6.38, I see the "drivers/xen/pciback" directory but found that XEN_PCI_PASSTHROUGH is missing. ./arch/x86/xen/Kconfig:config XEN_PCI_PASSTHROUGH // only 2.6.32-stable branch If I move to 2.6.38, can I expect it work better? The primary target I have now is to get the PCI pass-through working. Thanks Bhanu _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users