xen/arm: introduce xen_read_wallclock

Read the wallclock from the shared info page at boot time.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Stefano Stabellini 2015-11-23 10:40:12 +00:00 • committed by David Vrabel
commit e709fba132