diff options
| author |   Vasily Gorbik <gor@linux.ibm.com> | 2020-10-13 16:19:37 +0200 |
|---|---|---|
| committer |   Heiko Carstens <hca@linux.ibm.com> | 2020-11-09 11:20:58 +0100 |
| commit | 13b5bd8af41ca56fd11cc0281f2a1201d8342233 (patch) | |
| tree | c20aefe3ec57dd1f34370d8a53250201aef41778 /arch/s390/kernel/setup.c | |
| parent | Linux 5.10-rc3 (diff) | |
| download | linux-dev-13b5bd8af41ca56fd11cc0281f2a1201d8342233.tar.xz linux-dev-13b5bd8af41ca56fd11cc0281f2a1201d8342233.zip | |
s390/head: set io/ext handlers to disabled wait
Set io/ext handlers to disabled wait in the initial lowcore, so that they
are effective right from the kernel start, when a boot method used does
not rewrite this part of the lowcore for its own needs (i.e. kexec, z/vm
ipl reader boot, qemu direct boot, load from removable media or server).
When the kernel is loaded by zipl, scsi loader or qemu loader, some or
all of the io/ext/pgm handlers addresses might be rewritten. Rewrite them
to initial values again as early as possible.
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390/kernel/setup.c')
0 files changed, 0 insertions, 0 deletions