Changeset 71108 in vbox for trunk/src/VBox/Main/idl

Timestamp:

Feb 22, 2018 3:38:35 PM (7 years ago)

Author:

vboxsync

Message:

Added speculation control settings to API, refined implementation.

File:

• trunk/src/VBox/Main/idl/VirtualBox.xidl (modified) (3 diffs)

trunk/src/VBox/Main/idl/VirtualBox.xidl

@@ -1009 +1009 @@
         host CPU supports it.  This setting will significantly slow down workloads
         causing many VM exits, so it is only recommended for situation where there
-        real need to be paranoid.
+        is a real need to be paranoid.
       </desc>
     </const>
@@ -1017 +1017 @@
         host CPU supports it.  This setting will significantly slow down workloads
         causing many VM exits, so it is only recommended for situation where there
-        real need to be paranoid.
+        is a real need to be paranoid.
       </desc>
     </const>
@@ -1024 +1024 @@
         Enabled the hardware virtualization (AMD-V/VT-x) feature on the guest CPU.
         This requires hardware virtualization on the host CPU.
+      </desc>
+    </const>
+    <const name="SpecCtrl"              value="9">
+      <desc>
+        If set, the speculation control CPUID bits and MSRs, when available on the
+        host, are exposed to the guest. Depending on the host CPU and operating
+        system, this may significantly slow down workloads causing many VM exits.
+      </desc>
+    </const>
+    <const name="SpecCtrlByHost"        value="10">
+      <desc>
+        If set, the speculation controls are managed by the host. This is intended
+        for guests which do not set the speculation controls themselves.
       </desc>
     </const>