[Qemu-devel] [graphic & serial on sun4m]

[Jean-Michel SCHRAMM]

Hi Artyom,

Thanks again for your interest.

Le 07/03/2013 23:58, Artyom Tarasenko a écrit :
> Hi Jean Michel,
>
> On Thu, Mar 7, 2013 at 4:09 PM, Jean-Michel SCHRAMM
> <address@hidden> wrote:
> > Hello Artyom,
> >
> > Thanks for taking time to consider my needs for serial ports.
> >
> > I went on board Thalassa this morning and started the system (not easy, the
> > ship is laid along quay hardly powered). I gathered the informations you
> > requested. Hope this is all you need. Please ask me if I missed something.
> > I also attach the documentation of the board.
> Thanks, this looks interesting. What I wonder is where are those
> serial ports in the device tree?
> Are they connected to the VME-BUS, and OBP knows nothing about them?
> Do you know how does the SunOS find them?

The original serial ports come from a SCSI terminal server. A third 
party software from this terminal server maker (Central Data) is loaded 
at boot and create the devices /dev/ttyCx and load the proprietary 
driver in  kernel.
That's why those port are not in the devs tree. I can switch off this 
and replace the /dev/ttyCx with true serial ports. If it is possible to 
add a few ports on top on basic a & b native serial port, with custom 
device name, I think that could make it. But those new port has to be 
linked to host computer real ports to. This is far above my competence.
Though I used to (long ago...) be fluent in C and could get some support 
here, so I could volunteer to spend time on trying if I get just 
information of where to start and what to alter.

> > By the way, I just subscribed to qemu-devel (was only to qemu-discuss). Mark
> > said we should talk on this list and get nice cg3 and cg14 Bob's cards to
> > the current release?
> This is definitely a good idea. Feel free to write or add a cc to
> demu-devel any time.

I did. Many thanks again.
Jean Michel

 Artyom

> > Le 28/02/2013 15:45, Artyom Tarasenko a écrit :
> >
> > Hi Jean Michel,
> >
> > On Mon, Feb 18, 2013 at 6:36 PM,  <address@hidden> wrote:
> >
> > Hello Bob,
> >
> > Of course, with your full custom 0.15.50 tree it is much much better!! Got
> > the zip file and configure only sparc-softmmu. I undesrtand my mistake. I
> > thought I needed only the new files from the 0.15.
> > Thanks you for that!!
> >
> > Now I need at least 4 real serial port from the host up to the guest....
> > ...and network.
> >
> > Network must be there. The lance ethernet is emulated (except for some
> > test/loopback registers, but SunOS can live without those).
> > As for the serial ports, one way to proceed may be adding your
> > machine/board to qemu.
> >
> > Can you provide the OBP device tree of your machine?
> > It can be done in the OBP "ok" prompt like this:
> >
> > ok show-devs
> > <the device tree will be shown>
> > ok cd /
> > ok .attributes
> > <attributes of the root device will be shown>
> > ok cd <some device path from the device tree above>
> > ok .attributes
> >
> > The "ok " parts above would come from the OBP, you don't need to enter them.
> >
> > If this listing shows that the machine is close to SS-5 or SS-20,
> > adding more serial ports should be easy.
> >
> > Works with SS5. With SS20, I have an error saying that it can't find cpu
> > definitions..? (was working with other verions). see tomorrow.
> >
> > Have you tried -cpu "TI SuperSparc 60" ?
> >
> > Artyom

CPU-5CE.log
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