Changeset 44461 in vbox

Timestamp:

Jan 30, 2013 12:36:50 PM (12 years ago)

Author:

vboxsync

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

83465

Message:

refined r83445

Location:

trunk

Files:

• doc/manual/en_US/user_KnownIssues.xml (modified) (1 diff)
• src/VBox/VMM/VMMR3/HM.cpp (modified) (1 diff)

trunk/doc/manual/en_US/user_KnownIssues.xml

@@ -85 +85 @@
           <para><emphasis role="bold">NX (no execute, data execution
           prevention)</emphasis> only works for guests running on 64-bit hosts
-          or guests running 32-bit hosts with PAE enabled and requires that
+          or guests running on 32-bit hosts with PAE enabled and requires that
           hardware virtualization be enabled.</para>
         </listitem>

trunk/src/VBox/VMM/VMMR3/HM.cpp

@@ -1240 +1240 @@
                     CPUMSetGuestCpuIdFeature(pVM, CPUMCPUIDFEATURE_NX);
 # if RT_ARCH_X86
-                    LogRel(("NX is only supported for 64-bit guests!\n"));
+                    if (   !CPUMGetGuestCpuIdFeature(pVM, CPUMCPUIDFEATURE_PAE)
+                        || !(pVM->hm.s.vmx.hostEFER & MSR_K6_EFER_NXE))
+                        LogRel(("NX is only supported for 64-bit guests!\n"));
 # endif
                 }