Xen PCI passthrough does not work on kernel 3.5.2 It works fine on kernel 3.2.28, 3.3.4 and 3.4.9 Hardware: vt-d enabled (motherboard intel dq67sw, processor intel core i7 2600) Software: Xen: xen 4.1 (4.1.1 and 4.1.2 tested) Dom0: linux ( fedora 17 with (3.3.4 and 3.5.2) and ubuntu 10.11 with vanila kernel ( 3.2.28, 3.4.9 and 3.5.2) tested) DomU: Windows XP proffesional on Dom0 side all looks as usual xm pci-list shows pci devices in DomU on DomU side pci devices present but does not work - drivers can't start
tested on onboard usb controller root@debsrv:~# lspci -v -s 00:1d.0 00:1d.0 USB Controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) (prog-if 20 [EHCI]) Subsystem: Intel Corporation Device 2008 Flags: medium devsel, IRQ 23 [virtual] Memory at fe626000 (32-bit, non-prefetchable) [size=1K] Capabilities: [50] Power Management version 2 Capabilities: [58] Debug port: BAR=1 offset=00a0 Capabilities: [98] PCI Advanced Features Kernel driver in use: pciback