tree 4c7208c1d92da854cf71e5c4943548e66a0ef929
parent 6aefbf1cdf0018c5af53a3fa300a61fef0f046b6
author Sven Schnelle <svens@linux.ibm.com> 1632987253 +0200
committer Vasily Gorbik <gor@linux.ibm.com> 1635254490 +0200

s390/kexec_file: move kernel image size check

In preparation of adding support for command lines with variable
sizes on s390, the check whether the new kernel image is at least HEAD_END
bytes long isn't correct. Move the check to kexec_file_add_components()
so we can get the size of the parm area and check the size there.

The '.org HEAD_END' directive can now also be removed from head.S. This
was used in the past to reserve space for the early sccb buffer, but with
commit 9a5131b87cac1 ("s390/boot: move sclp early buffer from fixed address
in asm to C") this is no longer required.

Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>