Re: [Xen-devel] [PATCH v2] tools/libxl: mark special pages as reserved in e820 map for PVH

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

On Tue, Nov 21, 2017 at 12:06:06PM +0100, Juergen Gross wrote:
> The "special pages" for PVH guests include the frames for console and
> Xenstore ring buffers. Those have to be marked as "Reserved" in the
> guest's E820 map, as otherwise conflicts might arise later e.g. when
> hotplugging memory into the guest.
> 
> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>

Reviewed-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>

Albeit I would also prefer this to not be PVH specific. Ideally I
would like both PVH and HVM to share the logic to mark the reserved
regions in the memory map. I guess this can be fixed afterwards by
moving away this logic from hvmloader and handling the creation of
the memory map for both HVM and PVH in libxl.

Thanks, Roger.

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