I am still holding to few patches for big real mode. After rebase I will push those patches.
Thanks & Regards, Nitin Linux Open Source Technology Center, Intel Corporation ------------------------------------------------------------------------ ---- The Mind is like a parachute; it works much better when it's open. >-----Original Message----- >From: [EMAIL PROTECTED] [mailto:kvm-devel- >[EMAIL PROTECTED] On Behalf Of Guillaume Thouvenin >Sent: Wednesday, February 06, 2008 4:07 AM >To: Izik Eidus >Cc: kvm-devel@lists.sourceforge.net >Subject: Re: [kvm-devel] [ToDo] Real Mode Support > >On Wed, 06 Feb 2008 10:52:54 +0200 >Izik Eidus <[EMAIL PROTECTED]> wrote: >> >> i am not expert for the emulator area, but as far as i remember: >> >> virtual 8086 have some checks related to segments (the big mode >> problem), it mean that for some addresses it wont be able to execute >> anything, you will just get vmexit right away, therefor you need a full >> functional emulator that will handle everything there. > >Oh thanks, I remember now. The problem seems to be with the descriptor >cache register. In protected mode and also in virtual mode the >descriptor cache register is fully loaded each time a segment register >is loaded. It's not the case in real mode. So every program that uses >this "feature" (the big real mode) will not work under vm8086. >Thus we need to remove the usage of the virtual mode and instead we >need to fully emulate the real mode in order to be "big real mode" >compliant. > >Does somebody know if there are already some patches or some other stuff >about big real mode support? > >Regards, >Guillaume > >----------------------------------------------------------------------- -- >This SF.net email is sponsored by: Microsoft >Defy all challenges. Microsoft(R) Visual Studio 2008. >http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ >_______________________________________________ >kvm-devel mailing list >kvm-devel@lists.sourceforge.net >https://lists.sourceforge.net/lists/listinfo/kvm-devel ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
