hi, i want to enable vt-d in xen, but meet an error. at first, i do all things as /xen-unstable.hg/docs/misc/vtd.txt says. grub : kernel /boot/xen-3.5.gz iommu=passthrough module /boot/vmlinuz-2.6.18.8-xen pciback.hide=(02:00.0)(02:00.1) hvm.conf :pci=[''02:00.0'',''02:00.1''] (02:00.0 02:00.1 are my nics) after reboot,there is no these two nics in ''ifconfig -a'' and when i start hvm, it is block on "PNP: PS/2 controller........" at this time, i use ''xm pci-list hvm'' and got messages 0x04.... 0x05..... that seems pci devices have been passed to hvm. but when i changed two nics to another pci device, it can be assigned to hvm successfully. grub : kernel /boot/xen-3.5.gz iommu=passthrough module /boot/vmlinuz-2.6.18.8-xen pciback.hide=(00:14.1) hvm.conf :pci=[''00:14.1''] (00:14.1 GPIO) any one can help me?thank you for advance! 2009-07-02 songzhonglei _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel