Changeset 17166 in vbox for trunk/src/VBox

Timestamp:

Feb 26, 2009 1:45:26 PM (16 years ago)

Author:

vboxsync

Message:

Another case of dynamic cache entry trashing.

File:

• trunk/src/VBox/VMM/VMMAll/PGMAll.cpp (modified) (3 diffs)

trunk/src/VBox/VMM/VMMAll/PGMAll.cpp

@@ -876 +876 @@
     int            rc;
 
+# if defined(IN_RC) && defined(VBOX_WITH_PGMPOOL_PAGING_ONLY)
+    /* Make sure the dynamic pPdeDst mapping will not be reused during this function. */
+    PGMDynLockHCPage(pVM, (uint8_t *)pPdpe);
+# endif
+
     /* Allocate page directory if not present. */
     if (    !pPdpe->n.u1Present
@@ -914 +919 @@
             Assert(pVM->pgm.s.fSyncFlags & PGM_SYNC_CLEAR_PGM_POOL);
             VM_FF_SET(pVM, VM_FF_PGM_SYNC_CR3);
+# if defined(IN_RC) && defined(VBOX_WITH_PGMPOOL_PAGING_ONLY)
+            PGMDynUnlockHCPage(pVM, (uint8_t *)pPdpe);
+# endif
             return VINF_PGM_SYNC_CR3;
         }
@@ -927 +935 @@
              | (pGstPdpe->u & ~(X86_PDPE_PG_MASK | X86_PDPE_AVL_MASK | X86_PDPE_PCD | X86_PDPE_PWT));
 
+# if defined(IN_RC) && defined(VBOX_WITH_PGMPOOL_PAGING_ONLY)
+    PGMDynUnlockHCPage(pVM, (uint8_t *)pPdpe);
+# endif
     *ppPD = (PX86PDPAE)PGMPOOL_PAGE_2_PTR(pVM, pShwPage);
     return VINF_SUCCESS;