Jeremy Fitzhardinge wrote:
> I'm seeing oopses in probe_roms() and pci_find_bios(), apparently 
> because those pages are not mapped under Xen.  I'm not sure why I'm 
> seeing this now and not before, but I suspect its because I enabled 
> CONFIG_DEBUG_PAGEALLOC.  Anyway, I've got these patches to deal with 
> these cases:

Probably a config file difference - GOBIOS vs GODIRECT.

These patches look fine, although is there a more general solution?  
Like bypassing the whole PCI ROM probing entirely?  We don't really want 
to use the PCI ROM here either, although we have a slightly worse 
problem - the pages are mapped and do have a PCI ROM.  Perhaps 
paravirt-ops should be able to flip a global switch to disable this 
(perhaps already there?).

Zach
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