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

[Kristian Hagsted Rasmussen <kristian@xxxxxxxxxx>]

> -----Original Message-----
> From: Daniel Shub [mailto:Daniel.Shub@xxxxxxxxxxxxxxxx]
> Sent: 9. november 2012 11:12
> To: Kristian Hagsted Rasmussen; Daniel Shub
> Cc: xen-users@xxxxxxxxxxxxx
> Subject: RE: [Xen-users] PCI passthrough to Windows XP
> 
> > > I use grub2 in Debian Squeeze. The problem is that
> > /boot/grub/grub.cfg
> > > is automatically generated from /etc/default/grub where I have added
> > > the line
> > >
> > > GRUB_CMDLINE_XEN="xen-pciback.hide=(05:00.0)(06:04.0)"
> > I am use my own 06_xen file so are not used to the syntax, but is
> > there a line called something like GRUB_CMDLINE_XEN_LINUX= Or
> > GRUB_CMDLINE_XEN_LINUX_DEFAULT= Then move the "xen-
> > pciback.hide=(05:00.0)(06:04.0)" to that one, update grub and do the
> > #grep hide /boot/grub/grub.cfg To see if the line now starts with
> > Module /boot/vm-linuz...
> There are no lines with CMDLINE_XEN in them. I had to add the
> GRUB_CMDLINE_XEN line. If I add
> 
> GRUB_CMDLINE_XEN_LINUX="xen-pciback.hide=(05:00.0)(06:04.0)"
> 
> Or
> 
> GRUB_CMDLINE_XEN_LINUX_DEFAULT="xen-
> pciback.hide=(05:00.0)(06:04.0)"
> 
> And do an update-grub and then
> 
> #grep hide /boot/grub/grub.cfg
> 
> I get nothing. This doesn't surprise me since if I look at my
> /etc/grub.d/09_linux_xen it seems to want GRUB_CMDLINE_XEN and
> GRUB_CMDLINE_XEN_DEFAULT.
 
It seems that you then have to put it on 
GRUB_CMDLINE_LINUX
As the parameter must be passed to the linux kernel and not the xen.gz

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