s390/kexec_file: Add purgatory

The common code expects the architecture to have a purgatory that runs
between the two kernels. Add it now. For simplicity first skip crash
support.

Signed-off-by: Philipp Rudo <prudo@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Philipp Rudo 2017-08-28 15:32:36 +02:00 • committed by Martin Schwidefsky
commit 840798a1f5
7 changed files with 198 additions and 0 deletions