Re: [Xen-devel] [PATCH v3] x86/pvh: copy data from low 1MB to Dom0 physmap instead of mapping it

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 19.09.18 at 11:13, <roger.pau@xxxxxxxxxx> wrote:
> Identity mapping RAM regions on the low 1MB for Dom0 is not ideal,
> since there's data there that could be used by Xen during runtime
> (like the AP trampoline), so instead of identity mapping the low 1MB
> into the Dom0 physmap populate those RAM regions and copy the data.
> 
> Note that this allows to remove unshare_xen_page_with_guest since the
> only caller was the PVH Dom0 builder.
> 
> Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
> Acked-by: George Dunlap <george.dunlap@xxxxxxxxxx>
> Reviewed-by: Wei Liu <wei.liu2@xxxxxxxxxx>

Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>


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