Index: /trunk/src/VBox/VMM/VMMR0/HMVMXR0.cpp
===================================================================
--- /trunk/src/VBox/VMM/VMMR0/HMVMXR0.cpp	(revision 70497)
+++ /trunk/src/VBox/VMM/VMMR0/HMVMXR0.cpp	(revision 70498)
@@ -12631,4 +12631,6 @@
             Log4(("CRX CR%d Read access rcStrict=%Rrc\n", VMX_EXIT_QUALIFICATION_CRX_REGISTER(uExitQualification),
                   VBOXSTRICTRC_VAL(rcStrict)));
+            if (VMX_EXIT_QUALIFICATION_CRX_GENREG(uExitQualification) == X86_GREG_xSP)
+                HMCPU_CF_SET(pVCpu, HM_CHANGED_GUEST_RSP);
             break;
         }