Changeset 41462 in vbox for trunk/src/VBox/VMM/include

Timestamp:

May 28, 2012 11:42:50 AM (13 years ago)

Author:

vboxsync

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

78205

Message:

PGM: Don't flush the shadow page pool on A20 change, just change the shadow CR3 (well, the current lazy code does a bit more, but whatever). A20 stats.

File:

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

trunk/src/VBox/VMM/include/PGMInternal.h

@@ -3847 +3847 @@
     /** The number of times the guest has switched mode since last reset or statistics reset. */
     STAMCOUNTER                     cGuestModeChanges;
+    /** The number of times the guest has switched mode since last reset or statistics reset. */
+    STAMCOUNTER                     cA20Changes;
     /** @} */
 
@@ -4008 +4010 @@
 int             pgmR3ExitShadowModeBeforePoolFlush(PVMCPU pVCpu);
 int             pgmR3ReEnterShadowModeAfterPoolFlush(PVM pVM, PVMCPU pVCpu);
+void            pgmR3RefreshShadowModeAfterA20Change(PVMCPU pVCpu);
 
 void            pgmMapSetShadowPDEs(PVM pVM, PPGMMAPPING pMap, unsigned iNewPDE);