Changeset 32560 in vbox for trunk/src/VBox/VMM

Timestamp:

Sep 16, 2010 1:22:04 PM (14 years ago)

Author:

vboxsync

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

65952

Message:

Cleaned up a bit

File:

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

-              r32541
+              r32560
             if (pShwPage->GCPhys == GCPhys)
+            {
+# if 0 /* likely cause of a major performance regression; must be SyncPageWorkerTrackDeref then */
+                const unsigned iPTEDst = (GCPtrPage >> SHW_PT_SHIFT) & SHW_PT_MASK;
+                PSHWPT pPT = (PSHWPT)PGMPOOL_PAGE_2_PTR_V2(pVM, pVCpu, pShwPage);
+                if (pPT->a[iPTEDst].n.u1Present)
+                {
+                    /* This is very unlikely with caching/monitoring enabled. */
+                    PGM_BTH_NAME(SyncPageWorkerTrackDeref)(pShwPage, pPT->a[iPTEDst].u & SHW_PTE_PG_MASK, iPTEDst);
+                    ASMAtomicWriteSize(&pPT->a[iPTEDst], 0);
+                }
+# else /* Syncing it here isn't 100% safe and it's probably not worth spending time syncing it. */
+                /* Syncing it here isn't 100% safe and it's probably not worth spending time syncing it. */
                 rc = PGM_BTH_NAME(SyncPage)(pVCpu, PdeSrc, GCPtrPage, 1, 0);
                 if (RT_SUCCESS(rc))

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