[Qemu-devel] qemu 0.8.2 and RTEMS

[Qemu-devel] qemu 0.8.2 and RTEMS

[Jonathan Kalbfeld]

Passing this along for a friend.

---------- Forwarded message ----------
From: Joel Sherrill <joel.sherrill@oarcorp.com>
Date: Nov 13, 2006 1:51 PM
Subject: qemu 0.8.2 and RTEMS
To: RTEMS Users Mailing List <rtems-users@rtems.org>


Hi,

It looks like qemu has changed command line argument formats. :(

I can run non-networking tests but the syntax for the network
options has changed enough where I don't see the magic.  This is
the script which used to work for me.

qemu -isa -nics 1 -n ~joel/qemu-work/qemu/qemu-kit/tunconfig.sh \
   -macaddr 00:80:7F:22:61:77 -m 4 -serial stdio -fda
/home/joel/qemu/grub144

I have this much of a command line which doesn't cause qemu to
complain but it doesn't work either:

qemu -net nic,macaddr=00:80:7F:22:61:77,model=ne2k_isa \
  -m 4 -fda /home/joel/qemu/grub144

The qemu faq mentions using a tunctl program which I don't see.

For the older qemu, we had a sudo script to bring up the virtual
LAN.  Does anyone have this working with qemu 0.8.1?

--joel

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-- 
--
Jonathan Kalbfeld
+1 323 620 6682

Re: [Qemu-devel] qemu 0.8.2 and RTEMS

[Lonnie Mendez]

On Mon, 2006-11-13 at 14:06 -0800, Jonathan Kalbfeld wrote:

> qemu -isa -nics 1 -n ~joel/qemu-work/qemu/qemu-kit/tunconfig.sh \
>    -macaddr 00:80:7F:22:61:77 -m 4 -serial stdio -fda
> /home/joel/qemu/grub144
> 
> I have this much of a command line which doesn't cause qemu to
> complain but it doesn't work either:
> 
> qemu -net nic,macaddr=00:80:7F:22:61:77,model=ne2k_isa \
>   -m 4 -fda /home/joel/qemu/grub144

    You need to specify a connection method for the nic.  qemu has vlans
now that organize the internal network.  The default qemu uses with no
-net arguments is -net nic,vlan=0 -net user,vlan=0.  This groups a nic
and a connection method (slirp) on vlan 0.  If you want to use tun/tap
networking specify -net tap instead (along with -net nic,...).  Your old
line might look like the below:

qemu -M isapc -net nic,macaddr=00:80:7F:22:61:77 -net
tap,script=~joel/qemu-work/qemu/qemu-kit/tunconfig.sh -m 4 -serial stdio
-fda /home/joel/qemu/grub144

Although I'm not sure what the old script format looks like - there are
example qemu-ifup scripts about the net.

> The qemu faq mentions using a tunctl program which I don't see.

Please link that page here so it can be reviewed for correctness.