tree 3b9facbb96e6de76b3a7e0f9d76091900b424a73
parent d93f82b6e0c12a4373f2d04b1f92fcb2d175b62c
author Heiko Carstens <heiko.carstens@de.ibm.com> 1244795202 +0200
committer Martin Schwidefsky <schwidefsky@de.ibm.com> 1244795257 +0200

[S390] maccess: arch specific probe_kernel_write() implementation

Add an s390 specific probe_kernel_write() function which allows to
write to the kernel text segment even if write protection is enabled.
This is implemented using the lra (load real address) and stura (store
using real address) instructions.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>