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-rw-r--r--memory.c29
1 files changed, 9 insertions, 20 deletions
diff --git a/memory.c b/memory.c
index 2f15a4b..9200b20 100644
--- a/memory.c
+++ b/memory.c
@@ -1352,35 +1352,24 @@ bool memory_region_access_valid(MemoryRegion *mr,
bool is_write,
MemTxAttrs attrs)
{
- int access_size_min, access_size_max;
- int access_size, i;
-
- if (!mr->ops->valid.unaligned && (addr & (size - 1))) {
+ if (mr->ops->valid.accepts
+ && !mr->ops->valid.accepts(mr->opaque, addr, size, is_write, attrs)) {
return false;
}
- if (!mr->ops->valid.accepts) {
- return true;
- }
-
- access_size_min = mr->ops->valid.min_access_size;
- if (!mr->ops->valid.min_access_size) {
- access_size_min = 1;
+ if (!mr->ops->valid.unaligned && (addr & (size - 1))) {
+ return false;
}
- access_size_max = mr->ops->valid.max_access_size;
+ /* Treat zero as compatibility all valid */
if (!mr->ops->valid.max_access_size) {
- access_size_max = 4;
+ return true;
}
- access_size = MAX(MIN(size, access_size_max), access_size_min);
- for (i = 0; i < size; i += access_size) {
- if (!mr->ops->valid.accepts(mr->opaque, addr + i, access_size,
- is_write, attrs)) {
- return false;
- }
+ if (size > mr->ops->valid.max_access_size
+ || size < mr->ops->valid.min_access_size) {
+ return false;
}
-
return true;
}