Changeset 73263 in vbox for trunk/src/VBox/VMM/VMMAll

Timestamp:

Jul 20, 2018 11:20:08 AM (7 years ago)

Author:

vboxsync

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

123870

Message:

PGM,HM: Prepping for moving PGMR3ModeChange into ring-0... bugref:9044

File:

• trunk/src/VBox/VMM/VMMAll/HMAll.cpp (modified) (1 diff)

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

@@ -542 +542 @@
 }
 
+
+/**
+ * Notification callback which is called whenever there is a chance that a CR3
+ * value might have changed.
+ *
+ * This is called by PGM.
+ *
+ * @param   pVCpu          The cross context virtual CPU structure.
+ * @param   enmShadowMode  New shadow paging mode.
+ * @param   enmGuestMode   New guest paging mode.
+ */
+VMM_INT_DECL(void) HMPagingModeChanged(PVMCPU pVCpu, PGMMODE enmShadowMode, PGMMODE enmGuestMode)
+{
+#ifdef IN_RING3
+    /* Ignore page mode changes during state loading. */
+    if (VMR3GetState(pVCpu->pVMR3) == VMSTATE_LOADING)
+        return;
+#endif
+
+    pVCpu->hm.s.enmShadowMode = enmShadowMode;
+
+    /*
+     * If the guest left protected mode VMX execution, we'll have to be
+     * extra careful if/when the guest switches back to protected mode.
+     */
+    if (enmGuestMode == PGMMODE_REAL)
+        pVCpu->hm.s.vmx.fWasInRealMode = true;
+
+    Log4(("HMR3PagingModeChanged: Guest paging mode '%s', shadow paging mode '%s'\n", PGMGetModeName(enmGuestMode),
+          PGMGetModeName(enmShadowMode)));
+}
+