Opened 7 years ago
Closed 7 years ago
#16780 closed defect (invalid)
IEM IRET with VME cause #GP with TF set
| Reported by: | Yuhong Bao | Owned by: | |
|---|---|---|---|
| Component: | VMM | Version: | VirtualBox 5.1.22 |
| Keywords: | Cc: | ||
| Guest type: | other | Host type: | other |
Description (last modified by )
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
Change History (3)
comment:1 by , 7 years ago
comment:2 by , 7 years ago
| Description: | modified (diff) |
|---|
comment:3 by , 7 years ago
| Resolution: | → invalid |
|---|---|
| Status: | new → closed |
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Actually, please close this ticket. I think the article is in error.