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.

Signed-off-by: David Hildenbrand <da...@redhat.com>
---
 lib/Kconfig.debug | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index a30c03a66172..fce22ce54983 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1887,7 +1887,7 @@ 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
-- 
2.46.0


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