Changeset 11525 in vbox for trunk/src/VBox/VMM/PGMInternal.h

Timestamp:

Aug 21, 2008 9:07:51 AM (17 years ago)

Author:

vboxsync

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

35088

Message:

Added support for PSE-36.

File:

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

trunk/src/VBox/VMM/PGMInternal.h

@@ -2224 +2224 @@
     RTHCPHYS                        aHCPhysDynPageMapCache[MM_HYPER_DYNAMIC_SIZE >> (PAGE_SHIFT + 1)];
 
+    /** 4 MB page mask; 32 or 36 bits depending on PSE-36 */
+    RTGCPHYS                        GCPhys4MBPSEMask;
+
     /** A20 gate mask.
      * Our current approach to A20 emulation is to let REM do it and don't bother
@@ -3242 +3245 @@
 }
 
+/**
+ * Calculated the guest physical address of the large (4 MB) page in 32 bits paging mode.
+ * Takes PSE-36 into account.
+ *
+ * @returns guest physical address
+ * @param   pPGM        Pointer to the PGM instance data.
+ * @param   Pde         Guest Pde
+ */
+DECLINLINE(RTGCPHYS) pgmGstGet4MBPhysPage(PPGM pPGM, X86PDE Pde)
+{
+    RTGCPHYS GCPhys = Pde.u & X86_PDE4M_PG_MASK;
+    GCPhys |= (RTGCPHYS)Pde.b.u8PageNoHigh << 32;
+
+    return GCPhys & pPGM->GCPhys4MBPSEMask;
+}
 
 /**