Opened 7 years ago
Last modified 7 years ago
#16780 closed defect
IEM IRET with VME cause #GP with TF set — at Initial Version
| Reported by: | Yuhong Bao | Owned by: | |
|---|---|---|---|
| Component: | VMM | Version: | VirtualBox 5.1.22 |
| Keywords: | Cc: | ||
| Guest type: | other | Host type: | other |
Description
From https://www.virtualbox.org/svn/vbox/trunk/src/VBox/VMM/VMMAll/IEMAllCImpl.cpp.h :
else if ( enmEffOpSize == IEMMODE_16BIT
&& ( !(uNewFlags & X86_EFL_IF)
!Efl.Bits.u1VIP ) && !(uNewFlags & X86_EFL_TF) )
I don't remember IRET with TF set causing GP faults with VME, unlike POPF. This is documented in http://www.rcollins.org/ddj/May98/May98.html
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