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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2010-03-24 11:49:57 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2010-03-24 11:49:54 +0100 |
| commit | 06c0dd72aea3985d0ea036f771ebb1d1083bf69f (patch) | |
| tree | 680414dff917976c6b43aaec5688d03c71272e96 /arch/s390/kernel/head.S | |
| parent | 7b26d82f5ea7de5667f87bb5ac6570111d7bff9f (diff) | |
[S390] fix boot failures with compressed kernels
Fix two bugs with the kernel image compression:
1) reset the bss section of the compressed vmlinux
2) clear the high half of the registers for 64 bit early enough
for the decompression step
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/head.S')
| -rw-r--r-- | arch/s390/kernel/head.S | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S index ca4a62bd862f..9d1f76702d47 100644 --- a/arch/s390/kernel/head.S +++ b/arch/s390/kernel/head.S @@ -517,7 +517,10 @@ startup: lhi %r1,2 # mode 2 = esame (dump) sigp %r1,%r0,0x12 # switch to esame mode sam64 # switch to 64 bit mode + larl %r13,4f + lmh %r0,%r15,0(%r13) # clear high-order half jg startup_continue +4: .fill 16,4,0x0 #else mvi __LC_AR_MODE_ID,0 # set ESA flag (mode 0) l %r13,4f-.LPG0(%r13) |