IOCSRs could be accessed in any sizes from 1 to 8 bytes as long as the
address is aligned, regardless whether through MMIO or iocsr{rd,wr}
instructions. Lower min_access_size to 1 byte for IOCSR memory region to
match real-hardware behavior.
Fixes: f84a2aacf5d1 ("target/loongarch: Add LoongArch IOCSR instruction")
Signed-off-by: Yao Zi <[email protected]>
---
hw/loongarch/virt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c
index 49434ad1828b..5cc57e9b5aa7 100644
--- a/hw/loongarch/virt.c
+++ b/hw/loongarch/virt.c
@@ -692,7 +692,7 @@ static const MemoryRegionOps virt_iocsr_misc_ops = {
.write_with_attrs = virt_iocsr_misc_write,
.endianness = DEVICE_LITTLE_ENDIAN,
.valid = {
- .min_access_size = 4,
+ .min_access_size = 1,
.max_access_size = 8,
},
.impl = {
--
2.51.2
