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-rw-r--r--sys/amd64/amd64/mem.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/amd64/amd64/mem.c b/sys/amd64/amd64/mem.c
index 413b7c74890e..851f2df0e6e1 100644
--- a/sys/amd64/amd64/mem.c
+++ b/sys/amd64/amd64/mem.c
@@ -105,8 +105,8 @@ memrw(struct cdev *dev, struct uio *uio, int flags)
* PAGE_SIZE, the uiomove() call does not
* access past the end of the direct map.
*/
- if (v >= DMAP_MIN_ADDRESS &&
- v < DMAP_MIN_ADDRESS + dmaplimit) {
+ if (v >= kva_layout.dmap_low &&
+ v < kva_layout.dmap_high) {
error = uiomove((void *)v, c, uio);
break;
}