Re: [Fedora-xen] DomU console driver not works for Fedora17 in HVM mode with Xen 4.1.2

[Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>]

On Mon, Aug 20, 2012 at 09:39:56PM +0800, Wei Xu wrote:
> > Hi All,
> > I'm try to set up and verify Xen console driver base on Fedora 17 and Xen
> > 4.1.2 with hvm guest mode,
> > i searched around and got a link, it give steps both for PV and HVM mode,
> > I followed the HVM guide
> > and upgraded my kernel to 3.5.0.
> >
> >            http://www.dedoimedo.com/computers/xen-console.html
> >
> > After that, I can got console output with "xm console <dom_id>", but the
> > console driver is not used when I tracing the driver

.. I am not sure I understand: "when I tracing the driver" ? Are
you referring to the PV driver?

> > with "crash" utility, by examing the "console_drivers", the console driver
> > is still "serial8250 console", so i wonder if I didn't
> > set up it properly or something else, is there someone ever experienced
> > it, thanks.

Hm, it should be the hvc one. Perhaps Stefano knows..

CC-ing him and xen-devel here.

> >
> > crash> p *console_drivers
> > $10 = {
> >   name = "ttyS\000\000\000\000\000\000\000\000\000\000\000",
> >   write = 0xffffffff8138d5a0 <serial8250_console_write>,
> >   read = 0,
> >   device = 0xffffffff8138c350 <uart_console_device>,
> >   unblank = 0,
> >   setup = 0xffffffff81d29926 <serial8250_console_setup>,
> >   early_setup = 0xffffffff8138ca10 <serial8250_console_early_setup>,
> >   flags = 22,
> >   index = 0,
> >   cflag = 0,
> >   data = 0xffffffff81c82640,
> >   next = 0x0
> > }
> >
> > Thanks,
> > Wei
> >

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