Changeset 27042 in vbox

Timestamp:

Mar 4, 2010 3:14:29 PM (15 years ago)

Author:

vboxsync

Message:

Do not replace pages part of a 2 MB continuous range with zero pages, but zero them instead.

File:

• trunk/src/VBox/VMM/PGMPhys.cpp (modified) (1 diff)

trunk/src/VBox/VMM/PGMPhys.cpp

@@ -1299 +1299 @@
                 {
                     case PGMPAGETYPE_RAM:
-                        /* @todo deal with large pages. */
-                        Assert(PGM_PAGE_GET_PDE_TYPE(pPage) != PGM_PAGE_PDE_TYPE_PDE);
-
+                        /* Do not replace pages part of a 2 MB continuous range with zero pages, but zero them instead. */
+                        if (PGM_PAGE_GET_PDE_TYPE(pPage) == PGM_PAGE_PDE_TYPE_PDE)
+                        {
+                            void *pvPage;
+                            rc = pgmPhysPageMap(pVM, pPage, pRam->GCPhys + ((RTGCPHYS)iPage << PAGE_SHIFT), &pvPage);
+                            AssertLogRelRCReturn(rc, rc);
+                            ASMMemZeroPage(pvPage);
+                        }
+                        else
                         if (!PGM_PAGE_IS_ZERO(pPage))
                         {