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Re: [Xen-devel] xen and pci

On Sat, 18 Dec 2004, Adam Sulmicki wrote:

HOWEVER, once it finds it would like to configure devices behind this bridge, and it seems the xen prevents linux from doing just that.

It seems like linux treats the stuff it finds behind cardbus bridge like PCI device (i'm not sure if it is a real device or just how linux treats it a virtual pci devices).

redbull:/usr/src/cm/xen # /sbin/lspci

0000:02:00.0 CardBus bridge: Texas Instruments PCI1420
0000:02:00.1 CardBus bridge: Texas Instruments PCI1420

0000:07:00.0 Ethernet controller: Xircom Cardbus Ethernet 10/100 (rev 03)

well after a bit more playing with it, I got linux pci drivers to find the xircom PCI card (by letting linux write the pci registers on cardbus), but xen still knows nothing about it so things still explode, shortly later on.

on another front I have tried the xen 2.0-testing (ie the xen 2.1 pre-release) which as I understand should leave most of the pci handling to dom0... but, ... so far it seems no different than xen 2.0 release in that it still does not find the xircom card and it is missing form output of /sbin/lspci

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