Re: [Xen-users] Yet Another PCI passthrough question

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Sat, Sep 17, 2011 at 02:22:40PM +0100, Andy Burns wrote:
> On 16 September 2011 13:26, James Pifer <jep@xxxxxxxxxxxxxxxx> wrote:
> 
> > module /boot/vmlinuz-2.6.32.12-0.7-xen root=/dev/cciss/c0d0p2 
> > resume=/dev/cciss/c0d0p1 splash=silent showopts vga=0x317 
> > pciback.permissive pciback.hide=(0e:04.0)(0e:04.1) 
> > pci=resource_alignment=0e:04.0;0e:04.1
> 
> One thing I've found when using grub2, then grub interprets the
> semi-colon between multiple BDF triplets as a separator, e.g. in the
> above case it
> would only pass to the kernel
> 
> pci=resource_alignment=0e:04.0
> 
> and then give an error
> 
> error: unknown command `0e:04.1'
> 
> the fix is to wrap single quotes around the clause, e.g
> 
> module /boot/vmlinuz-2.6.32.12-0.7-xen root=/dev/cciss/c0d0p2
> resume=/dev/cciss/c0d0p1 splash=silent showopts vga=0x317
> pciback.permissive pciback.hide=(0e:04.0)(0e:04.1)
> 'pci=resource_alignment=0e:04.0;0e:04.1'
> 
> Hopefully google will squirrel this a way and it be useful to anyone
> else hitting the same issue ...
> 

Thanks! I added a note about this grub2 issue to:
http://wiki.xen.org/xenwiki/XenPCIpassthrough

-- Pasi


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