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Re: [Xen-devel] Xen 3.2 and Big Real Mode support?


Guillaume Thouvenin, le Wed 23 Jan 2008 15:32:52 +0100, a écrit :
>  I'd like to know what is the level of the emulation of x86 'real
> mode'? I ask that because I tried to install OpenSuse 10.3 (I used
> the iso file openSUSE-10.3-GM-x86_64-mini.iso) with Xen 3.2-testing
> from mercurial and the boot failed. I got the following messages:
> "...
>  Booting from CD-Rom...
>  ISOLINUX 3.31 0x46f43c1e Copyright (C) 1994-2005 H. Peter Anvin
>  Loading...
> "
> and it hangs after the "...". Logs don't show any specifics problems.
> As OpenSuse 10.3 is known to have some 'real mode' issues due to the
> presence of the gfx bootloader I asking myself what is the state of the
> art of 'real mode' emulation into Xen?

That's the kind of bug that should get fixed by this real mode emulation
indeed.  Note that that precise bug (gfxboot) only appears on Intel
machines with VMX.  AMD's SVM doesn't have that issue.


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