Changeset 45276 in vbox for trunk/include/VBox/vmm/em.h

Timestamp:

Apr 2, 2013 8:17:11 AM (12 years ago)

Author:

vboxsync

Message:

Ring-1 compression patches, courtesy of trivirt AG:

• main: diff to remove the hwvirt requirement for QNX
• rem: diff for dealing with raw ring 0/1 selectors and general changes to allowed guest execution states
• vmm: changes for using the guest's TSS selector index as our hypervisor TSS selector (makes str safe) (VBOX_WITH_SAFE_STR )
• vmm: changes for dealing with guest ring 1 code (VBOX_WITH_RAW_RING1)
• vmm: change to emulate smsw in RC/R0 (QNX uses this old style instruction a lot so going to qemu for emulation is very expensive)
• vmm: change (hack) to kick out patm virtual handlers in case they conflict with guest GDT/TSS write monitors; we should allow multiple handlers per page, but that change would be rather invasive

File:

• trunk/include/VBox/vmm/em.h (modified) (1 diff)

trunk/include/VBox/vmm/em.h

@@ -133 +133 @@
 #define EMIsRawRing0Enabled(pVM) (!(pVM)->fRecompileSupervisor)
 
+#ifdef VBOX_WITH_RAW_RING1
+/**
+ * Checks if raw ring-1 execute mode is enabled.
+ *
+ * @returns true if enabled.
+ * @returns false if disabled.
+ * @param   pVM         The VM to operate on.
+ */
+#define EMIsRawRing1Enabled(pVM) ((pVM)->fRawRing1Enabled)
+#else
+#define EMIsRawRing1Enabled(pVM) false
+#endif
+
 /**
  * Checks if execution with hardware assisted virtualization is enabled.