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lib/Kconfig.debug: Default STRICT_DEVMEM to "y" on s390

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virtio-mem currently depends on !DEVMEM | STRICT_DEVMEM. Let's default
STRICT_DEVMEM to "y" just like we do for arm64 and x86.

There could be ways in the future to filter access to virtio-mem device
memory even without STRICT_DEVMEM, but for now let's just keep it
simple.

Tested-by: Mario Casquero <mcasquer@redhat.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Tested-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Link: https://lore.kernel.org/r/20241025141453.1210600-6-david@redhat.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
This commit is contained in:
David Hildenbrand 2024-10-25 16:14:50 +02:00 committed by Heiko Carstens
parent 38968bcdcc
commit 2b37c814aa
1 changed files with 1 additions and 1 deletions
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lib/Kconfig.debug
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@ -1905,7 +1905,7 @@ config STRICT_DEVMEM
bool "Filter access to /dev/mem"
depends on MMU && DEVMEM
depends on ARCH_HAS_DEVMEM_IS_ALLOWED || GENERIC_LIB_DEVMEM_IS_ALLOWED
default y if PPC || X86 || ARM64
default y if PPC || X86 || ARM64 || S390
help
If this option is disabled, you allow userspace (root) access to all
of memory, including kernel and userspace memory. Accidental