From 08c8e685c7c9223f9c4ad6365e02bebd3f106480 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <hca@linux.ibm.com>
Date: Wed, 9 Sep 2020 17:10:29 +0200
Subject: s390: add ARCH_HAS_DEBUG_WX support

Checks the whole kernel address space for W+X mappings. Note that
currently the first lowcore page unfortunately has to be mapped
W+X. Therefore this not reported as an insecure mapping.

For the very same reason the wording is also different to other
architectures if the test passes:

On s390 it is "no unexpected W+X pages found" instead of
"no W+X pages found".

Tested-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
---
 arch/s390/Kconfig | 1 +
 1 file changed, 1 insertion(+)

(limited to 'arch/s390/Kconfig')

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 85bf121211d1..2052b39b8459 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -60,6 +60,7 @@ config S390
 	def_bool y
 	select ARCH_BINFMT_ELF_STATE
 	select ARCH_HAS_DEBUG_VM_PGTABLE
+	select ARCH_HAS_DEBUG_WX
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAS_ELF_RANDOMIZE
 	select ARCH_HAS_FORTIFY_SOURCE
-- 
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