From mboxrd@z Thu Jan  1 00:00:00 1970
From: Anthony Liguori <anthony@codemonkey.ws>
Subject: Re: Latest qemu tcg breakage
Date: Mon, 23 Jun 2008 21:33:31 -0500
Message-ID: <48605CFB.9040006@codemonkey.ws>
References: <1213019621.6792.7.camel@thinkpadL>	 <484D5BBF.6030904@codemonkey.ws> <1214251581.18888.46.camel@localhost.localdomain>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8;
	format=flowed
Content-Transfer-Encoding: QUOTED-PRINTABLE
Cc: jyoung5@us.ibm.com, kvm <kvm@vger.kernel.org>,
	kvm-ppc-devel <kvm-ppc-devel@lists.sourceforge.net>
To: Hollis Blanchard <hollisb@us.ibm.com>
Return-path: <kvm-owner@vger.kernel.org>
Received: from rv-out-0506.google.com ([209.85.198.230]:21879 "EHLO
	rv-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
	with ESMTP id S1751265AbYFXCdv (ORCPT <rfc822;kvm@vger.kernel.org>);
	Mon, 23 Jun 2008 22:33:51 -0400
Received: by rv-out-0506.google.com with SMTP id k40so7389488rvb.1
        for <kvm@vger.kernel.org>; Mon, 23 Jun 2008 19:33:51 -0700 (PDT)
In-Reply-To: <1214251581.18888.46.camel@localhost.localdomain>
Sender: kvm-owner@vger.kernel.org
List-ID: <kvm.vger.kernel.org>

Hollis Blanchard wrote:
> On Mon, 2008-06-09 at 11:35 -0500, Anthony Liguori wrote:
>  =20
>> Jerone Young wrote:
>>    =20
>>> So upstream qemu is being pervasive about changes with TCG, startin=
g to
>>> place tcg only functions in exec.c . I've spun a quick patch that f=
ixes
>>> things for PowerPC when building qemu. But we need to try and isola=
te
>>> TCG in upstream qemu as it is starting to leak, and I'm not sure of=
 a
>>> good way to fix it as there is no CONFIG defined for tcg  currently=
=2E
>>>
>>> Just something to keep in mind.
>>>  =20
>>>      =20
>> Now that TCG supports PPC, shouldn't ya'll be able to drop=20
>> --disable-cpu-emulation.  I believe that will simultaneously fix you=
r=20
>> problem and reduce the difference between upstream QEMU.
>>    =20
>
> Unfortunately, dropping =EF=BB=BF--disable-cpu-emulation would create=
 a gcc3
> dependency for us, which would suck. (Qemu still uses dyngen for
> PowerPC, and it does still require gcc3.)
>  =20

But there's always been a GCC3 dependency.  --disable-cpu-emulation was=
=20
working around the breakage caused by TCG's introduction.  That's been=20
fixed.

Regards,

Anthony Liguori