From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Ijrsv-0004oW-7b for qemu-devel@nongnu.org; Mon, 22 Oct 2007 03:39:37 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Ijrst-0004oE-Q7 for qemu-devel@nongnu.org; Mon, 22 Oct 2007 03:39:36 -0400 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Ijrst-0004oB-Lg for qemu-devel@nongnu.org; Mon, 22 Oct 2007 03:39:35 -0400 Received: from mx20.gnu.org ([199.232.41.8]) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1Ijrst-0003Nk-Ay for qemu-devel@nongnu.org; Mon, 22 Oct 2007 03:39:35 -0400 Received: from pils.linux-kernel.at ([213.129.242.82] helo=mail.linux-kernel.at) by mx20.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1Ijrsk-0007j7-LH for qemu-devel@nongnu.org; Mon, 22 Oct 2007 03:39:27 -0400 Message-ID: <471C5386.9040609@linux-kernel.at> Date: Mon, 22 Oct 2007 09:38:46 +0200 From: Oliver Falk MIME-Version: 1.0 Subject: Re: [Qemu-devel] qemu alpha? References: <4711DF16.1040307@linux-kernel.at> <200710191949.14806.rob@landley.net> <1192870572.16781.29.camel@rapid> <200710210543.14960.rob@landley.net> In-Reply-To: <200710210543.14960.rob@landley.net> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Rob Landley Cc: qemu-devel@nongnu.org On 10/21/2007 12:43 PM, Rob Landley wrote: > On Saturday 20 October 2007 3:56:12 am J. Mayer wrote: >> On Fri, 2007-10-19 at 19:49 -0500, Rob Landley wrote: >>> On Sunday 14 October 2007 5:14:27 am J. Mayer wrote: >>>> On Sun, 2007-10-14 at 11:19 +0200, Oliver Falk wrote: >>>>> Just wanted to know how far the progress on alpha target is? I would >>>>> be happy if I have some 'virtual alpha' to test new isos. >>>>> >>>>> If I can help some way (I have a few alphas around). Let me know. >>>> I'm happy to see someone interresting in improving Alpha support, which >>>> is .... very alpha for now ! >>> I'm interested in testing Alpha too, but I haven't seem a >>> qemu-system-alpha show up yet. Alas, I have no hardware or specific >>> expertise in this platform, I'm just trying to build and boot Linux >>> kernels (and corresponding root filesystems) on as many emulated target >>> platforms as I can. >> There are a lot of things missing for qemu-system-alpha to be available: >> - the PALCode emulation is far from being complete or even usable > > I have no idea what that is. > >> - there is no hardware machine emulation for Alpha in Qemu. >> As I have no Alpha platform, I don't know much about the hardware to be >> emulated. > > I do know that the ev6 bus is the same as the Athlon used. And what about ev5 or ev56? Well ev6 or ev67 should be the main target to be emulated I think... > When Compaq bought the corpse of DEC back in the mid-90's, they weren't > interested in their chip designers, so AMD scooped up most of the Alpha > design team. AMD then asked them "ok, if you guys were going to design an > x86 compatible processor, what would it look like?" The result was the > Athlon back around 1997. You could actually stick one in an Alpha > motherboard, and the only reason it wouldn't boot is the bios was alpha > machine language instead of x86 code. Everything else was the same, because > it's what the designers were familiar with. Duh. That's new to me - didn't know that yet. > So if you slap an Alpha in a virtual x86-64 PC motherboard, you're not too far > off. > > Here's one spec: > http://web.archive.org/web/19990913123756/http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html Thanks for those informations! -of