Changeset 16592 in vbox for trunk

Timestamp:

Feb 9, 2009 2:58:51 PM (16 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

42558

Message:

Setting the accessed bit of PAE PDPTs causes an VT-x invalid guest state exit.

File:

• trunk/src/VBox/VMM/VMMAll/PGMAllBth.h (modified) (2 diffs)

trunk/src/VBox/VMM/VMMAll/PGMAllBth.h

@@ -161 +161 @@
 
     /* Fake PDPT entry; access control handled on the page table level, so allow everything. */
-    PdpeSrc.u  = X86_PDPE_P | X86_PDPE_A;   /* rw/us are reserved for PAE pdpte's. */
+    PdpeSrc.u  = X86_PDPE_P;   /* rw/us are reserved for PAE pdpte's; accessed bit causes invalid VT-x guest state errors */
 #    endif
     rc = pgmShwSyncPaePDPtr(pVM, pvFault, &PdpeSrc, &pPDDst);
@@ -2963 +2963 @@
 
         /* Fake PDPT entry; access control handled on the page table level, so allow everything. */
-        PdpeSrc.u  = X86_PDPE_P | X86_PDPE_A;   /* rw/us are reserved for PAE pdpte's. */
+        PdpeSrc.u  = X86_PDPE_P;   /* rw/us are reserved for PAE pdpte's; accessed bit causes invalid VT-x guest state errors */
 #   endif
         int rc = pgmShwSyncPaePDPtr(pVM, GCPtrPage, &PdpeSrc, &pPDDst);