Re: [Xen-devel] Xen 4.1 + Linux compiled with PVH == BOOM

[David Vrabel <dvrabel@xxxxxxxxxx>]

On 20/12/2013 17:57, Konrad Rzeszutek Wilk wrote:
> Hey,
> 
> This is with Linux and
> 
> git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git stable/pvh.v11
> 
> I get Xen 4.1 (only) hypervisor to blow up with a Linux kernel that has been
> compiled with PVH.
> 
> I think the same problem would show up if I tried to launch a PV guest 
> compiled as PVH under Xen 4.1 as well - as the ELF parsing code is shared
> with the toolstack.

If a kernel with both PVH and PV support enabled cannot boot in PV mode
with a non-PVH aware hypervisor/toolstack then the kernel is broken.

Hypervisor/tool-side fixes aren't the correct fix here.  Xen 4.1 and
even older are still widely deployed.

David

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