Changeset 77b52f0 in mainline for kernel/generic/src/mm/frame.c

Timestamp:

2012-03-07T16:09:02Z (12 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

609cbf8

Parents:

161fbda

Message:

kernel/frame, arm32/page: PA might start on other addresses than 0, handle it.

Add comments about possible issues.

File:

• kernel/generic/src/mm/frame.c (modified) (1 diff)

kernel/generic/src/mm/frame.c

@@ -1282 +1282 @@
 bool frame_adjust_zone_bounds(bool low, uintptr_t *basep, size_t *sizep)
 {
-        uintptr_t limit = config.identity_size;
+        // FIXME: This might lead to overflow if the identity_size is too big
+        // but it is necessary if the PA identity_base > identity_size
+        const uintptr_t limit =
+            KA2PA(config.identity_base) + config.identity_size;
 
         if (low) {