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

[Andy Burns <xen.lists@xxxxxxxxxxx>]

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 ...

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