| commit | 51eee033dca3d6dc81febc5a69f30b964f3bddf3 | [log] [tgz] |
|---|---|---|
| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | Thu Aug 23 16:18:09 2012 +0200 |
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | Tue Oct 09 14:16:58 2012 +0200 |
| tree | 5f5a7b981e2febf38671cb5808e4acddde0005d3 | |
| parent | cc5b9a45184e90037e6d5353279ec358e57965fd [diff] |
s390: add support to start the kernel in 64 bit mode. Do the switch to z/Architecture (alias 64 bit) mode early in head.S. If the machine is already running in 64 bit mode the sigp turns into a nop. With this change it doesn't matter in which mode the kernel is started. Reviewd-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>