s390/decompressor: trim the kernel image up to 1M

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Move head64.S main kernel entry point "startup_continue" to 0x100000 and
trim everything which is below 1M during build. So, that the decompressor
would unpack the main kernel image, move it to 0x100000 and jump to
startup_continue.

Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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This commit is contained in:

Vasily Gorbik 2018-06-12 15:11:40 +02:00 • committed by Martin Schwidefsky

parent 00f2fb573f

commit bd79d66329

3 changed files with 5 additions and 5 deletions

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2

arch/s390/boot/compressed/Makefile

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6

arch/s390/boot/compressed/head.S

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2

arch/s390/kernel/head64.S

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