Changeset 69707 in vbox for trunk/src/VBox/VMM/VMMR0

Timestamp:

Nov 16, 2017 5:09:34 AM (7 years ago)

Author:

vboxsync

Message:

VMM/HMSVMR0: Nested hw.virt: Fixed re-loading of guest state after emulating vmload instruction in ring-0.

File:

• trunk/src/VBox/VMM/VMMR0/HMSVMR0.cpp (modified) (1 diff)

trunk/src/VBox/VMM/VMMR0/HMSVMR0.cpp

@@ -7334 +7334 @@
     uint8_t const cbInstr = hmR0SvmGetInstrLengthHwAssist(pVCpu, pCtx, 3);
     VBOXSTRICTRC rcStrict = IEMExecDecodedVmload(pVCpu, cbInstr);
+    if (rcStrict == VINF_SUCCESS)
+    {
+        /* We skip flagging changes made to LSTAR, STAR, SFMASK and other MSRs as they are always re-loaded. */
+        HMCPU_CF_SET(pVCpu,   HM_CHANGED_GUEST_SEGMENT_REGS
+                            | HM_CHANGED_GUEST_TR
+                            | HM_CHANGED_GUEST_LDTR);
+    }
     return VBOXSTRICTRC_VAL(rcStrict);
 }