Re: [Xen-devel] Xen PVH support in grub2

[Boris Ostrovsky]

On 11/03/2017 02:05 PM, Juergen Gross wrote:
>
> So again the question: how to tell whether we are PVH or HVM in
> init_hypervisor_platform()? ACPi tables are scanned way later...

Can we make grub/OVMF append a boot option?

Or set setup_header.hardware_subarch to something? We already have
X86_SUBARCH_XEN but it is only used by PV.  Or we might be able to use
hardware_subarch_data (will need to get a buy-in from x86 maintainers, I
think).

-boris