Changeset 66403 in vbox for trunk/src/VBox/VMM/VMMAll/CPUMAllRegs.cpp

Timestamp:

Apr 3, 2017 3:21:26 PM (8 years ago)

Author:

vboxsync

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

114356

Message:

CPUM: Added the MXCSR mask to the CPU database and CPUM::GuestInfo as well as the host one to CPUM::fHostMxCsrMask. Need it for correctly implementing LDMXCSR, FXRSTOR and XSTOR.

File:

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

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

@@ -2528 +2528 @@
 }
 
+
+/**
+ * Gets the guest MXCSR_MASK value.
+ *
+ * This does not access the x87 state, but the value we determined at VM
+ * initialization.
+ *
+ * @returns MXCSR mask.
+ * @param   pVM                 The cross context VM structure.
+ */
+VMMDECL(uint32_t) CPUMGetGuestMxCsrMask(PVM pVM)
+{
+    return pVM->cpum.s.GuestInfo.fMxCsrMask;
+}
+