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Commit 0eccc783 authored by Heiko Carstens's avatar Heiko Carstens Committed by Martin Schwidefsky
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s390/jump label,nss: let shared kernel support depend on !JUMP_LABEL 



We can have either shared kernel or jump label support, but not both.
If a kernel gets IPL'ed from an NSS it's not possible to patch the
text segment, since it's read-only.
Therefore any static branches cannot be updated. So we need to make
sure that shared kernel support is disabled if jump label support
is enabled.

Signed-off-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent f7ed68a4

arch/s390/Kconfig

+2 −2
Original line number Diff line number Diff line
@@ -545,8 +545,8 @@ config PFAULT 
	  this option.



config SHARED_KERNEL

	def_bool y

	prompt "VM shared kernel support"

	bool "VM shared kernel support"

	depends on !JUMP_LABEL

	help

	  Select this option, if you want to share the text segment of the

	  Linux kernel between different VM guests. This reduces memory