[PATCH 1/4] serial: serial_xen: print U-Boot banner and others

takahiro.akashi at linaro.org
2020-10-22T09:49:34Z

On Thu, Oct 22, 2020 at 09:18:02AM +0000, Anastasiia Lukianenko wrote:
> Hi,
>
> On Thu, 2020-10-15 at 13:25 +0900, AKASHI Takahiro wrote:
> > At present, DM_FLAG_PRE_RELOC is set only if !OF_CONTROL.
> > It doesn't make sense for this para-virtualized driver.
> >
> > With this patch applied, you will be able to see early boot messages:
> >
> > U-Boot 2020.10-00001-ge442e71a6c52-dirty (Oct 15 2020 - 11:02:25
> > +0900)
> > xenguest
> >
> > Xen virtual CPU
> > Model: XENVM-4.15
> > DRAM: 128 MiB
> > PVBLOCK:
> > (XEN) gnttab_mark_dirty not implemented yet
> > pvblock: 0
> > In: hypervisor
> > Out: hypervisor
> > Err: hypervisor
> > xenguest#
> >
> > Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
> > ---
> > drivers/serial/serial_xen.c | 2 --
> > 1 file changed, 2 deletions(-)
> >
> > diff --git a/drivers/serial/serial_xen.c
> > b/drivers/serial/serial_xen.c
> > index ba6504b94796..ed191829f059 100644
> > --- a/drivers/serial/serial_xen.c
> > +++ b/drivers/serial/serial_xen.c
> > @@ -175,8 +175,6 @@ U_BOOT_DRIVER(serial_xen) = {
> > .priv_auto_alloc_size = sizeof(struct xen_uart_priv),
> > .probe = xen_serial_probe,
> > .ops = &xen_serial_ops,
> > -#if !CONFIG_IS_ENABLED(OF_CONTROL)
> > .flags = DM_FLAG_PRE_RELOC,
> > -#endif
> > };
> >
>
> I applied this patch and unfortunately on ARM there were no logs. I
> think this series should be improved a little.

I will check.
Please tell me
- the board that you're using
- the version of Xen
(and .config)

Thanks,
-Takahiro Akashi

> Regards,
> Anastasiia