From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=56828 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OIgks-0000qZ-Oj for qemu-devel@nongnu.org; Sun, 30 May 2010 07:32:35 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OIgkr-0005nV-EZ for qemu-devel@nongnu.org; Sun, 30 May 2010 07:32:34 -0400 Received: from mail-px0-f173.google.com ([209.85.212.173]:60712) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OIgkr-0005nN-8O for qemu-devel@nongnu.org; Sun, 30 May 2010 07:32:33 -0400 Received: by pxi2 with SMTP id 2so1220949pxi.4 for ; Sun, 30 May 2010 04:32:32 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: References: From: Blue Swirl Date: Sun, 30 May 2010 11:32:12 +0000 Message-ID: Content-Type: text/plain; charset=UTF-8 Subject: [Qemu-devel] Re: sparc mmu List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Artyom Tarasenko Cc: Bob Breuer , qemu-devel@nongnu.org On Sat, May 29, 2010 at 9:33 PM, Artyom Tarasenko wrote: > 2010/5/29 Blue Swirl : >> Robert Reif did some improvements to SuperSparc emulation, but the >> work was not finished. That should be a good starting point. > > Do you mean the last patch he sent to us or are there some earlier > unapplied patches? The last one. > The last patch _seems_ to be mainly refactoring and disabling features > which are not > presented in certain models. I might have missed something of course: > the patch is large. > > For me is also interesting what do we miss in the microSPARC implementation. > If I switch off POST (which crashes due to the known FPU problems) > LX/CX/X OBPs hang. Looks like it's expecting some interrupt (the SS-5 > OBP escapes a similar endless loop on a timer irq), but not getting > it. > Do you know anything obvious qemu is missing in LX machine? I don't have a device tree for LX, but unimplemented interrupt sources could be audio, parallel port, video, modem. Floppy may be buggy.