tree 13f5bb09b626fb60f7dd1b8d3b506617e585dd9b
parent bacbe9994541c70aa3abd1a013ac738e58d4bfb2
author Jeremy Fitzhardinge <jeremy@goop.org> 1229459543 -0800
committer Ingo Molnar <mingo@elte.hu> 1229461306 +0100

x86: make sure we really have an hpet mapping before using it

Impact: prepare the hpet code for Xen dom0 booting

When booting in Xen dom0, the hpet isn't really accessible, so make
sure the mapping is non-NULL before use.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>