s390/kexec_file: Load new kernel to absolute 0

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The leading 64 kB of a kernel image doesn't contain any data needed to boot
the new kernel when it was loaded via kexec_file. Thus kexec_file currently
strips them off before loading the image. Keep the leading 64 kB in order
to be able to pass a ipl_report to the next kernel.

Signed-off-by: Philipp Rudo <prudo@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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This commit is contained in:

Philipp Rudo 2019-03-07 15:56:34 +01:00 • committed by Martin Schwidefsky

parent 8e49642613

commit 653beba24d

5 changed files with 28 additions and 18 deletions

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6

arch/s390/include/asm/kexec.h

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16

arch/s390/kernel/kexec_elf.c

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9

arch/s390/kernel/kexec_image.c

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12

arch/s390/kernel/machine_kexec_file.c

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3

arch/s390/kernel/relocate_kernel.S

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