On Tue, 2007-10-16 at 13:12 -0700, Avi Kivity wrote: > Why do you think it is better? I would have thought that vm86 is much > faster. > I am seeing execution going to strange places in vm86 mode. That issue is not coming in the emulation.
> I thought of doing it this way: > > - try to run normally > - if vm entry failed due to invalid guest state (the famous > 0x80000021), > then emulate 50 instructions > - repeat This may be better, I will give it a try. > That will also handle the few cases where VT can't handle protected > mode. > > It should exit to userspace, same as the non-emulating case. However > it > shouldn't happen for normal writes. > Only thing is if it in the real mode, then returning back to user mode will setup the cpu state as real mode, and because of that vmenter will fail. > > -- > Do not meddle in the internals of kernels, for they are subtle and > quick to panic. > > Thanks a lot for your input. -- Thanks & Regards, Nitin Open Source Technology Center, Intel Corporation ----------------------------------------------------------------- The mind is like a parachute; it works much better when it's open
signature.asc
Description: This is a digitally signed message part
------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/
_______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
