Re: [Xen-users] PCI passthrough to Windows XP

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Fri, 2012-11-09 at 09:28 +0000, Kristian Hagsted Rasmussen wrote:
> 
> > -----Original Message-----
> > From: xen-users-bounces@xxxxxxxxxxxxx [mailto:xen-users-
> > bounces@xxxxxxxxxxxxx] On Behalf Of Ian Campbell
> > Sent: 9. november 2012 10:13
> > To: Daniel Shub
> > Cc: xen-users@xxxxxxxxxxxxx; Paul Muster
> > Subject: Re: [Xen-users] PCI passthrough to Windows XP
> > 
> > On Fri, 2012-11-09 at 09:07 +0000, Daniel Shub wrote:
> > > #grep hide /boot/grub/grub.cfg
> > >
> > > Returns two lines of
> > >
> > > multiboot /boot/xen-4.0-amd64.gz placeholder
> > > xen-pciback.hide(05:00.0)(06:04.0)
> Shouldn't this line be on the kernel line in grub and not the xen.gz line?
> In my understanding it is the xen-pciback module in the linux kernel who does 
> the hiding.

I missed this -- you are absolutely correct that this option should be
passed to the dom0 kernel. 

If using update-grub with the standard grub.d snippets hten it should be
added /etc/default/grub in the GRUB_CMDLINE_LINUX_XEN_REPLACE or
GRUB_CMDLINE_LINUX_XEN_REPLACE_DEFAULT variables (which may need to be
created). Alternatively GRUB_CMDLINE_LINUX_DEFAULT/GRUB_CMDLINE_LINUX
would work (and be harmless, I think, when booting native).

GRUB_CMDLINE_XEN_DEFAULT and GRUB_CMDLINE_LINUX_DEFAULT are both the
wrong place to add this new option.




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