[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-users] activate pci card in domU???
On Fri, 2006-04-28 at 11:19 -0700, list user wrote: > > After booting that domU, lspci shows: > > 02:00.0 Ethernet controller: Broadcom Corporation NetXtreme > BCM5702X Gigabit Ethernet (rev 02) > > showing that the domU now owns that card; however, all attempts to > configure it fail with tg3 timeout errors. > > Can somebody nudge me in the correct direction or possibly attach a > script that they've successfully used exporting a pci device to a domU? > > Any and all help greatly appreciated! Hi Mike, Check out this e-mail from the archives: http://article.gmane.org/gmane.comp.emulators.xen.devel/21087 Basically your problem is that the tg3 card puts some device specific registers in the PCI configuration space (which I believe the PCI specification recommends that device manufacturer's not do). As a security measure, the configuration space is write-protected by the PCI backend. The tg3 device driver is probably trying to enable/talk to the card, but the PCI backend is blocking the writes. You'll need to disable the write protection by enabling "permissive" mode as indicated in the link above (it's a module parameter that you can pass on the kernel command-line or enable through sysfs). Ryan _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
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