Changeset f18d01b6 in mainline for kernel/genarch/src/mm/as_pt.c

Timestamp:

2013-09-11T18:09:18Z (11 years ago)

Author:

Martin Decky <martin@…>

Branches:

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

Children:

d5f774f6

Parents:

5759975a

Message:

allocate frames for the page tables on naturally aligned addresses

File:

• kernel/genarch/src/mm/as_pt.c (modified) (2 diffs)

kernel/genarch/src/mm/as_pt.c

@@ -74 +74 @@
 {
         pte_t *dst_ptl0 = (pte_t *)
-            PA2KA(frame_alloc(PTL0_FRAMES, FRAME_LOWMEM, 0));
-        size_t table_size = FRAMES2SIZE(PTL0_FRAMES);
+            PA2KA(frame_alloc(PTL0_FRAMES, FRAME_LOWMEM, PTL0_SIZE - 1));
         
         if (flags & FLAG_AS_KERNEL)
-                memsetb(dst_ptl0, table_size, 0);
+                memsetb(dst_ptl0, PTL0_SIZE, 0);
         else {
                 /*
@@ -94 +93 @@
                     &dst_ptl0[PTL0_INDEX(KERNEL_ADDRESS_SPACE_START)];
                 
-                memsetb(dst_ptl0, table_size, 0);
+                memsetb(dst_ptl0, PTL0_SIZE, 0);
                 memcpy((void *) dst, (void *) src,
-                    table_size - (src - (uintptr_t) src_ptl0));
+                    PTL0_SIZE - (src - (uintptr_t) src_ptl0));
                 
                 mutex_unlock(&AS_KERNEL->lock);