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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2012-08-23 10:18:09 -0400 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2012-10-09 08:16:58 -0400 |
| commit | 51eee033dca3d6dc81febc5a69f30b964f3bddf3 (patch) | |
| tree | 5f5a7b981e2febf38671cb5808e4acddde0005d3 /arch/s390/kernel/sclp.S | |
| 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>
Diffstat (limited to 'arch/s390/kernel/sclp.S')
0 files changed, 0 insertions, 0 deletions