Re: [Xen-users] Serial port on the domU

["Artiom Shamis" <artiom.shamis@xxxxxxxxx>]

Sven,
Good catch!
The CONFIG_XEN_DISABLE_SERIAL is set to 'y' in my .config file. I'm
going to rebuild the kernel now without this option.

Thanks,
Artiom
On 9/11/07, sven waeyenbergh <sven.waeyenbergh@xxxxxxxxx> wrote:
> Artiom,
>
> as far as i understood there are only a few things that will block the
> transfer of the serial ports to domU:
> - serial drivers need to be blacklisted on dom0 (you did that)
> - serial drivers need to be compiled and installed on domU (you did that)
> - the ioports and irq stuff needs to be added to the domU config file (you
> did that)
> and 1 more of which i'm not sure:
> - kernel config option CONFIG_XEN_DISABLE_SERIAL should not be set on the
> domU kernel (i'm not sure if you changed that before recompiling - i'm
> having a lot of troubles getting my kernel compiled, so i haven't tested
> this yet)
>
> can you confirm that the above option is NOT set for your domU ? you would
> save me a lot of work.
>
> Greetings,
> Sven
>
> On 9/11/07, ArtiomSh <artiom.shamis@xxxxxxxxx> wrote:
> >
> > Hi guys,
> > I've got the same problem. Following recommendations above I added serial
> > stuff on dom0 to blacklist.
> > In /etc/xen/vm/vm2 file I added irq and ioports section. I added 8250 and
> > serial_core and rebuild the kernel on domU. When vm get loaded there is no
> > word about serial in dmesg output. On the other side there  are /dev/ttyS0
> > to ttyS7 on dom0
> > Have I missed something?
> >
> > Thanks,
> > Artiom
> >
> >
> > shacky wrote:
> > >
> > >> What's about /dev/ttyS* in dom0? If any ttyS* exists in dom0 you cannot
> > >> use it in domU. You must disable all serial port modules like "8250" or
> > >> "serial_core".
> > >
> > > I disabled that modules and they are not loded. In reality they was
> > > not loaded neither before blacklisting them. I think the kernel was
> > > compiled with the serial support built in it..
> > >
> > > _______________________________________________
> > > Xen-users mailing list
> > > Xen-users@xxxxxxxxxxxxxxxxxxx
> > > http://lists.xensource.com/xen-users
> > >
> > >
> >
> > --
> > View this message in context:
> http://www.nabble.com/Xen-and-serial-port-tf4327425.html#a12603816
> > Sent from the Xen - User mailing list archive at Nabble.com.
> >
> >
> > _______________________________________________
> > Xen-users mailing list
> > Xen-users@xxxxxxxxxxxxxxxxxxx
> > http://lists.xensource.com/xen-users
> >
>
>


-- 
Artiom

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