Re: [Xen-devel] [PATCH 15/15] xen: tools: expose EPC in ACPI table

[Roger Pau Monné <roger.pau@xxxxxxxxxx>]

On Sun, Jul 09, 2017 at 08:16:05PM +1200, Kai Huang wrote:
> On physical machine EPC is exposed in ACPI table via "INT0E0C". Although EPC
> can be discovered by CPUID but Windows driver requires EPC to be exposed in
> ACPI table as well. This patch exposes EPC in ACPI table.
> 
> Signed-off-by: Kai Huang <kai.huang@xxxxxxxxxxxxxxx>
> ---
>  tools/firmware/hvmloader/util.c  | 23 +++++++++++++++++++
>  tools/firmware/hvmloader/util.h  |  3 +++

Is there any reason this needs to be done in hvmloader instead of
libacpi? I'm mostly asking this because PVH guests can also get ACPI
tables, so it would be good to be able to expose EPC to them using
ACPI.

Thanks, Roger.

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