Re: [Xen-devel] 2.6.37 PV on HVM issues

[Alex Bligh <alex@xxxxxxxxxxx>]

--On 3 December 2010 11:24:43 +0000 Ian Campbell <Ian.Campbell@xxxxxxxxxx> 
wrote:
> On Fri, 2010-12-03 at 11:18 +0000, Stefano Stabellini wrote:
> > If you know what you are doing you can manually remove the check for
> > the unplug protocol in the kernel, just hack
> > arch/x86/xen/platform-pci-unplug.c:check_platform_magic.
> This is exactly equivalent to adding "xen_emul_unplug=unnecessary" to
> the kernel command line, isn't it?
>
> Conversely if you want to always force emulated devices (i.e. disable
> any attempt to unplug) then "xen_emul_unplug=never" will do what you
> want.
OK, I am confused. What I want do is is bring the PV devices up as
/dev/xvda not /dev/sda. I don't much care whether or not it attempts to
unplug the emulated devices, as I can cope with or without the additional
presence of the emulated devices.

IE I want it to work just like it used to work with unmodified_drivers.

Is there a command line option for that? Or if not, I am happy
to try and work on a patch.

--
Alex Bligh

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