From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37311) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZehbT-0003x2-5U for qemu-devel@nongnu.org; Wed, 23 Sep 2015 06:48:48 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZehbP-0003l4-Vd for qemu-devel@nongnu.org; Wed, 23 Sep 2015 06:48:47 -0400 Received: from nm11-vm1.bullet.mail.bf1.yahoo.com ([98.139.213.152]:50681) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZehbP-0003kg-Qs for qemu-devel@nongnu.org; Wed, 23 Sep 2015 06:48:43 -0400 Date: Wed, 23 Sep 2015 10:48:41 +0000 (UTC) From: sridhar kulkarni Message-ID: <1411875556.179967.1443005321856.JavaMail.yahoo@mail.yahoo.com> In-Reply-To: References: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_179966_396611470.1443005321851" Subject: Re: [Qemu-devel] qemu-system-arm system support for big endian BE8 Reply-To: sridhar kulkarni List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Peter Crosthwaite Cc: Peter Maydell , Alistair Francis , QEMU Developers , Paolo Bonzini ------=_Part_179966_396611470.1443005321851 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hi Peter, I was able to progress well using the BE8 work in the branch that you point= ed out. I am experiencing floating point issue. The qemu just exits, by put= ting a message that "floating point exception(core dumped)". I suppose QEMU= do support floating point operations. I heard about hard floating point an= d soft floating point support. Is there any configuration option in QEMU fo= r floating point?=20 ThanksSridhar =20 On Thursday, September 10, 2015 10:38 PM, Peter Crosthwaite wrote: =20 On Tue, Sep 8, 2015 at 10:12 PM, sridhar kulkarni wrote: > I am cc'ing few guys who have worked on the Arm big endian system support= . > I am looking at BE8. Can you please help me with the current status of th= e > work on big endian support? I would really want to have this working for = my > setup. > > The latest work is here, which should handle be8 and AA64 big endianness: https://github.com/Xilinx/qemu/commits/mainline/big_endian Regards, Peter > > > > On Tuesday, September 8, 2015 10:55 PM, sridhar kulkarni > wrote: > > > Hi, > > I am looking at big endian support in QEMU for BE8 arm system. Looks like > this is possible in user mode, but not in system mode. I am looking at > system mode support for BE8. I have noticed few discussions around > supporting BE8, and I believe there are few patches available. I am not s= ure > if any of them made it to QEMU main line code. > > Can anyone point me to patches or share the work which has been already d= one > to support BE8? If not, can anybody point what it takes to support big > endian, and where in qemu source code I can start looking at this > feasibility? > >=C2=A0 I am trying to run the big endian code on vxpress a9 board. > > Regards > Sridhar > > ------=_Part_179966_396611470.1443005321851 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable

Hi Peter,

<= div id=3D"yui_3_16_0_1_1442988957469_16127">

I was able to progress well using the B= E8 work in the branch that you pointed out. I am experiencing floating poin= t issue. The qemu just exits, by putting a message that "floating point exc= eption(core dumped)". I suppose QEMU do support floating point operations. = I heard about hard floating point and soft floating point support. Is there= any configuration option in QEMU for floating point?

Thanks

Sridhar

On Thursday, = September 10, 2015 10:38 PM, Peter Crosthwaite <crosthwaitepeter@gmail.c= om> wrote:

O= n Tue, Sep 8, 2015 at 10:12 PM, sridhar kulkarni
<sridhar_kulk@yahoo.com> wrote:
> I am cc'ing few guys who have worked on the Arm big endian system sup= port.
> I am looking at BE8. Can you please help me wi= th the current status of the
> work on big endian supp= ort? I would really want to have this working for my
>= setup.
>
>
The latest work is here, which should handle be8 and AA64 b= ig endianness:

https://github.com/Xilinx/qemu/commits/mainline/big_endian

Regards,
Peter

= >
>
>
> O= n Tuesday, September 8, 2015 10:55 PM, sridhar kulkarni
&= gt; <sridhar_kulk@yahoo.com> wrote:
>
>
> Hi,
>
> I am looking at big endian support i= n QEMU for BE8 arm system. Looks like
> this is possib= le in user mode, but not in system mode. I am looking at
= > system mode support for BE8. I have noticed few discussions around
> supporting BE8, and I believe there are few patches ava= ilable. I am not sure
> if any of them made it to QEMU= main line code.
>
> Can anyone p= oint me to patches or share the work which has been already done
> to support BE8? If not, can anybody point what it takes to s= upport big
> endian, and where in qemu source code I c= an start looking at this
> feasibility?
>
> I am trying to run the big endian cod= e on vxpress a9 board.
>
> Regard= s
> Sridhar
>
&= gt;

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