xen/arm: Use p2m entry with lock protection

A new local variable is introduced for accessing p2m entry with lock
protection.

Signed-off-by: Hillf Danton <hdanton@sina.com>
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
This commit is contained in:
Hillf Danton 2019-04-30 11:26:08 -07:00 • committed by Stefano Stabellini
commit fe846979d3