Changeset 89344d85 in mainline for src/mm/page.c

Timestamp:

2005-09-03T00:19:23Z (20 years ago)

Author:

Ondrej Palkovsky <ondrap@…>

Branches:

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

Children:

36b209a

Parents:

e4a6dda

Message:

Changes, that were needed to make it work on Bochs.

• We CAN use the NX bit in paging tables, but we have

to initialize the NXE bit in EFER register first.

File:

• src/mm/page.c (modified) (3 diffs)

src/mm/page.c

@@ -84 +84 @@
                 memsetb(newpt, PAGE_SIZE, 0);
                 SET_PTL1_ADDRESS(ptl0, PTL0_INDEX(page), KA2PA(newpt));
-                SET_PTL1_FLAGS(ptl0, PTL0_INDEX(page), PAGE_PRESENT | PAGE_USER);
+                SET_PTL1_FLAGS(ptl0, PTL0_INDEX(page), PAGE_PRESENT | PAGE_USER | PAGE_EXEC);
         }
 
@@ -93 +93 @@
                 memsetb(newpt, PAGE_SIZE, 0);
                 SET_PTL2_ADDRESS(ptl1, PTL1_INDEX(page), KA2PA(newpt));
-                SET_PTL2_FLAGS(ptl1, PTL1_INDEX(page), PAGE_PRESENT | PAGE_USER);
+                SET_PTL2_FLAGS(ptl1, PTL1_INDEX(page), PAGE_PRESENT | PAGE_USER | PAGE_EXEC);
         }
 
@@ -102 +102 @@
                 memsetb(newpt, PAGE_SIZE, 0);
                 SET_PTL3_ADDRESS(ptl2, PTL2_INDEX(page), KA2PA(newpt));
-                SET_PTL3_FLAGS(ptl2, PTL2_INDEX(page), PAGE_PRESENT | PAGE_USER);
+                SET_PTL3_FLAGS(ptl2, PTL2_INDEX(page), PAGE_PRESENT | PAGE_USER | PAGE_EXEC);
         }