x86/UV: Add kdump to UV NMI handler
x86/UV: Add kdump to UV NMI handler

If a system has hung and it no longer responds to external
events, this patch adds the capability of doing a standard kdump
and system reboot then triggered by the system NMI command.

It is enabled when the nmi action is changed to "kdump" and the
kernel is built with CONFIG_KEXEC enabled.

Signed-off-by: Mike Travis <e6cc0fb2b8dad4110ef62e9a33e5a8aa4e0f86d7@sgi.com>
Reviewed-by: Dimitri Sivanich <eb9314cd9fb6c9c1ab10792809da7e2f4af25acd@sgi.com>
Reviewed-by: Hedi Berriche <e4a37f39837f34802ddf825db7fff764be6d206d@sgi.com>
Cc: Peter Zijlstra <645ca7d3a8d3d4f60557176cd361ea8351edc32b@chello.nl>
Cc: Paul Mackerras <19a0ba370c443ba08d20b5061586430ab449ee8c@samba.org>
Cc: Arnaldo Carvalho de Melo <293abb6b76d7791c0732cc517d38c4b5c734b87f@ghostprotocols.net>
Cc: Jason Wessel <3f19c87103ac4cd0301ffd05a2421b687c7b3c77@windriver.com>
Link: 24025e38b669986a2624ebae79c1d53611a2eb27@asylum.americas.sgi.com
Signed-off-by: Ingo Molnar <9dbbbf0688fedc85ad4da37637f1a64b8c718ee2@kernel.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs