Changeset 92757 in vbox for trunk/src/VBox

Timestamp:

Dec 6, 2021 9:48:13 AM (3 years ago)

Author:

vboxsync

Message:

VMM: Nested VMX: bugref:10092 Assert that we don't support accessed/dirty bit with EPT paging yet.

File:

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

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

@@ -8252 +8252 @@
         int rc2 = PGMGstModifyPage(pVCpu, GCPtrMem, 1, fAccessedDirty, ~(uint64_t)fAccessedDirty);
         AssertRC(rc2);
-        /** @todo Nested VMX: Accessed/dirty bit updates might fail and cause EPT
-         *        violations/EPT misconfigs. */
+        /** @todo Nested VMX: Accessed/dirty bit currently not supported, asserted below. */
+        Assert(!(CPUMGetGuestIa32VmxEptVpidCap(pVCpu) & VMX_BF_EPT_VPID_CAP_ACCESS_DIRTY_MASK));
     }