Commit Graph

1 Commits

Author SHA1 Message Date
Philipp Rudo
5c6595e4c0 s390: add variable command line size
Resolves: bz2060824
Upstream: git.kernel.org/pub/scm/utils/kernel/kexec/kexec-tools.git
Conflicts: None

commit defb80a20bf1e4d778596ce2447e19d44f31ae5a
Author: Sven Schnelle <svens@linux.ibm.com>
Date:   Thu Dec 16 12:43:52 2021 +0100

    s390: add variable command line size

    Newer s390 kernels support a command line size longer than 896
    bytes. Such kernels contain a new member in the parameter area,
    which might be utilized by tools like kexec. Older kernels have
    the location initialized to zero, so we check whether there's a
    non-zero number present and use that. If there isn't, we fallback
    to the legacy command line size of 896 bytes.

    Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
    Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com>
    Signed-off-by: Simon Horman <horms@verge.net.au>

Signed-off-by: Philipp Rudo <prudo@redhat.com>
2022-04-06 18:05:47 +02:00