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[S390] initrd vs. bootmem bitmap.

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Move initrd if the bitmap of the bootmem allocator would overwrite it.
In addition this patch sets the default size and address of the initrd to 0.
Therefore all boot loaders must set the initrd size and address correctly.
This is especially relevant for ftp boot via HMC/SE, where this change
requires a special patch file entry in the .ins file which sets these two
values contained at address 0x10408 and 0x10410.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens
2006-09-20 15:58:41 +02:00
committed by Martin Schwidefsky
parent 4ba069b802
commit 65912a84c0
5 changed files with 48 additions and 13 deletions
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4
arch/s390/kernel/head64.S
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@@ -26,8 +26,8 @@ startup:basr %r13,0 # get base
#
.org PARMAREA
.quad 0 # IPL_DEVICE
.quad RAMDISK_ORIGIN # INITRD_START
.quad RAMDISK_SIZE # INITRD_SIZE
.quad 0 # INITRD_START
.quad 0 # INITRD_SIZE
.org COMMAND_LINE
.byte "root=/dev/ram0 ro"