CPUMAllRegs.cpp

Timestamp:

Sep 17, 2014 11:04:43 AM (10 years ago)

Author:

vboxsync

Message:

VMM/CPUM: Fix EFER WRMSR to ignore EFER.LMA bit, trunk regression caused by r96058.

File:

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

-              r52717
+              r52770
                                          : 0;
             uint64_t        fMask        = 0;
+            uint64_t        fIgnoreMask  = MSR_K6_EFER_LMA;
             /* Filter out those bits the guest is allowed to change. (e.g. LMA is read-only) */
 …
             /* #GP(0) If anything outside the allowed bits is set. */
             if ((uValue | fMask) != fMask)
+            if (uValue & ~(fIgnoreMask | fMask))
+            {
                 Log(("CPUM: Settings disallowed EFER bit. uValue=%#RX64 fAllowed=%#RX64 -> #GP(0)\n", uValue, fMask));

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