[PATCH v2] hw/misc: Set valid access size for Exynos4210 RNG

[Zheyu Ma]

This commit ensures that accesses to the RNG memory region are properly
validated and align with expected access sizes.

Reproducer:
cat << EOF | qemu-system-aarch64 -display none \
-machine accel=qtest, -m 512M -machine smdkc210 -qtest stdio
readb 0x10830454
EOF

Signed-off-by: Zheyu Ma <zheyum...@gmail.com>
---
 hw/misc/exynos4210_rng.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hw/misc/exynos4210_rng.c b/hw/misc/exynos4210_rng.c
index 0756bd3205..674d8eece5 100644
--- a/hw/misc/exynos4210_rng.c
+++ b/hw/misc/exynos4210_rng.c
@@ -217,6 +217,8 @@ static const MemoryRegionOps exynos4210_rng_ops = {
     .read = exynos4210_rng_read,
     .write = exynos4210_rng_write,
     .endianness = DEVICE_NATIVE_ENDIAN,
+    .valid.min_access_size = 4,
+    .valid.max_access_size = 4,
 };
 
 static void exynos4210_rng_reset(DeviceState *dev)
-- 
2.34.1