Re: [Qemu-devel] [PATCH] Fix extlh instruction on Alpha

[Rob Landley <rob@landley.net>]

On Monday 21 September 2009 01:23:50 Laurent Desnogues wrote:
> On Mon, Sep 21, 2009 at 4:20 AM, Rob Landley <rob@landley.net> wrote:
> > Any idea how hard it would be to whip up a qemu-system-alpha emulation?
> >  I note that several real-world alpha boards were essentially just a PC
> > with a different processor.  (In fact the original Athlon used the Alpha
> > EV6 bus and was pin-compatible, so you could drop-in replace the
> > processor with an Alpha if you could somehow reflash the bios with alpha
> > instructions instead of x86.)
> >
> > I'd like to boot Alpha Linux on qemu, and it doesn't seem like there's
> > _that_ much more to do.  But last I asked (a couple years ago) I was told
> > the Alpha protected mode stuff wasn't implemented yet...
>
> There's been a series of patch to add ES40 proposed by Tristan Gingold
> last March.

Ooh, thanks.

> Look here:
>
> http://www.archivum.info/qemu-devel@nongnu.org/2009-03/00723/%5BQemu-devel%
>5D_%5BPATCH_0_24%5D:_add_alpha_es40_system_emulation

That's the March 19th posting, he actually posted a newer series on March 30.  
Still just boots the Bios, not Linux, but it seems a good thing to poke at

Looks promising.  Has there been any progress since then?  (Did any of the 
series get merged?  Is it worth trying to apply this series to current -git, 
feeding it a linux -kernel, and seeing what happens?)

> Laurent

Rob
-- 
Latency is more important than throughput. It's that simple. - Linus Torvalds