Changeset 31565 in vbox for trunk/src/VBox/VMM/VMMAll

Timestamp:

Aug 11, 2010 12:47:07 PM (15 years ago)

Author:

vboxsync

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

64669

Message:

PGM,HWACCM: MMIO optimizations - coding in progress.

Location:

trunk/src/VBox/VMM/VMMAll

Files:

• PGMAll.cpp (modified) (1 diff)
• PGMAllBth.h (modified) (1 diff)

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

@@ -1271 +1271 @@
 #endif /* IN_RC */
 
+#ifdef IN_RING0
+/**
+ * Synchronizes a range of nested page table entries.
+ *
+ * The caller must own the PGM lock.
+ *
+ * @param   pVCpu               The current CPU.
+ * @param   GCPhys              Where to start.
+ * @param   cPages              How many pages which entries should be synced.
+ * @param   enmShwPagingMode    The shadow paging mode (PGMMODE_EPT for VT-x,
+ *                              host paging mode for AMD-V).
+ */
+int pgmShwSyncNestedPageLocked(PVMCPU pVCpu, RTGCPHYS GCPhysFault, uint32_t cPages, PGMMODE enmShwPagingMode)
+{
+    Assert(PGMIsLockOwner(pVCpu->CTX_SUFF(pVM)));
+
+    int rc;
+    switch (enmShwPagingMode)
+    {
+        case PGMMODE_32_BIT:
+        {
+            X86PDE PdeDummy = { X86_PDE_P | X86_PDE_US | X86_PDE_RW | X86_PDE_A };
+            rc = PGM_BTH_NAME_32BIT_PROT(SyncPage)(pVCpu, PdeDummy, GCPhysFault, cPages, ~0U /*uErr*/);
+            break;
+        }
+
+        case PGMMODE_PAE:
+        case PGMMODE_PAE_NX:
+        {
+            X86PDEPAE PdeDummy = { X86_PDE_P | X86_PDE_US | X86_PDE_RW | X86_PDE_A };
+            rc = PGM_BTH_NAME_PAE_PROT(SyncPage)(pVCpu, PdeDummy, GCPhysFault, cPages, ~0U /*uErr*/);
+            break;
+        }
+
+        case PGMMODE_AMD64:
+        case PGMMODE_AMD64_NX:
+        {
+            X86PDEPAE PdeDummy = { X86_PDE_P | X86_PDE_US | X86_PDE_RW | X86_PDE_A };
+            rc = PGM_BTH_NAME_AMD64_PROT(SyncPage)(pVCpu, PdeDummy, GCPhysFault, cPages, ~0U /*uErr*/);
+            break;
+        }
+
+        case PGMMODE_EPT:
+        {
+            X86PDEPAE PdeDummy = { X86_PDE_P | X86_PDE_US | X86_PDE_RW | X86_PDE_A };
+            rc = PGM_BTH_NAME_EPT_PROT(SyncPage)(pVCpu, PdeDummy, GCPhysFault, cPages, ~0U /*uErr*/);
+            break;
+        }
+
+        default:
+            AssertMsgFailedReturn(("%d\n", enmShwPagingMode), VERR_INTERNAL_ERROR_5);
+    }
+    return rc;
+}
+#endif /* IN_RING0 */
+
+
 /**
  * Gets effective Guest OS page information.

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

@@ -146 +146 @@
 {
 # if !PGM_WITH_PAGING(PGM_GST_TYPE, PGM_SHW_TYPE)
-    GSTPDE const    PdeSrcDummy = { X86_PDE_P | X86_PDE_US | X86_PDE_RW | X86_PDE_A};
+    GSTPDE const    PdeSrcDummy = { X86_PDE_P | X86_PDE_US | X86_PDE_RW | X86_PDE_A };
 #endif
     PVM             pVM         = pVCpu->CTX_SUFF(pVM);