Re: [Xen-devel] ARM64:Porting xen to new hardware

[Julien Grall <julien.grall@xxxxxxx>]

On 09/29/2017 09:15 AM, bharat gohil wrote:
> Hello
Hi,

Please avoid top-posting.

> The patch didn't work in my case.
The patch will be useful only if the compatible string in the DT of your 
UART is "snps,dw-apb-uart". What is the compatible string for it?
Cheers,

> Thanks,
> Bharat
>
> On Mon, Sep 25, 2017 at 11:38 PM, Oleksandr Tyshchenko 
> <olekstysh@xxxxxxxxx <mailto:olekstysh@xxxxxxxxx>> wrote:
>     Hi, Bharat
>
>     On Mon, Sep 25, 2017 at 8:40 PM, bharat gohil <ghl.bhrt@xxxxxxxxx
>     <mailto:ghl.bhrt@xxxxxxxxx>> wrote:
>     >
>     >
>     > On 25-Sep-2017 6:59 PM, "Julien Grall" <julien.grall@xxxxxxx 
> <mailto:julien.grall@xxxxxxx>> wrote:
>     >
>     > Hi,
>     >
>     > I am using same setup.
>     > It just my guess because no response to key ctrl+a input.
>     >
>     > SoC has 8250 compitible UART.I will print character in receive handler of
>     > UART in Xen. Do we have any other hook test this?
>
>     Maybe you got stuck in the UART interrupt handler. Can you recheck?
>
>     If so, can you take a look at the patch which has been posted recently:
>     https://patchwork.kernel.org/patch/9959003/
>     <https://patchwork.kernel.org/patch/9959003/>
>
>      >
>      > One more thing, is big-little supported in xen?
>      > How Xen distribute load among the CPUs or Xen only run in context
>     of the
>      > guest only?
>      > In my setup Dom0 use energy aware scheduler.
>      >
>      > Thanks,
>      > Bharat
>      >
>      >
>      > On 09/25/2017 01:53 PM, bharat gohil wrote:
>      >>
>      >> Hello Andrii,
>      >>
>      >> I tried but no success.
>      >> It looks, Xen is not running.
>      >
>      >
>      > I am a bit confused... on one of the previous e-mail you posted
>     log from
>      > Xen:
>      >
>      > (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to
>     switch input to
>      > Xen)
>      >
>      > (XEN) Freed 272kB init memory.
>      >
>      > So unless you have a completely new setup, Xen is definitely running.
>      > However, what may happen is the serial driver in Xen does not
>     receive input
>      > characters.
>      >
>      > One of the first test would be to check whether the driver
>     effectively
>      > receive characters.
>      >
>      > Cheers,
>      >
>      >>
>      >> Thanks,
>      >> Bharat
>      >>
>      >>
>      >> On Mon, Sep 25, 2017 at 5:45 PM, Andrii Anisov
>     <andrii_anisov@xxxxxxxx <mailto:andrii_anisov@xxxxxxxx>
>      >> <mailto:andrii_anisov@xxxxxxxx <mailto:andrii_anisov@xxxxxxxx>>>
>     wrote:
>      >>
>      >>     Hello Bharat,
>      >>
>      >>
>      >>     On 25.09.17 11:42, bharat gohil wrote:
>      >>
>      >>         Hello Wilk,
>      >>
>      >>         I had try Ctrl+a three times and 'd' but no dump on the
>     serial
>      >>         console.
>      >>
>      >>     Its a way to switch to XEN debug console. In case you are using
>      >>     minicom, you should press Ctrl+A six times, then you will
>     see the
>      >>     line like following:
>      >>          (XEN) *** Serial input -> Xen (type 'CTRL-a' three times to
>      >>     switch input to DOM0)
>      >>
>      >>     Then you can press 'h' for seeing installed key handlers.
>      >>
>      >>     But all of this requires XEN to be running somehow.
>      >>
>      >>     --
>      >>     *Andrii Anisov*
>      >>
>      >>
>      >>
>      >>
>      >>
>      >> --
>      >> Regards,
>      >> Bharat Gohil
>      >> Sr.Software Engineer
>      >> bharat.gohil@xxxxxxxxxx <mailto:bharat.gohil@xxxxxxxxxx>
>     <mailto:bharat.gohil@xxxxxxxxxx <mailto:bharat.gohil@xxxxxxxxxx>>
>      >> +919427054633 <tel:%2B919427054633>
>      >
>      >
>      > --
>      > Julien Grall
>      >
>      >
>
>
>
>     --
>     Regards,
>
>     Oleksandr Tyshchenko
>
>
>
>
> --
> Regards,
> Bharat Gohil
> Sr.Software Engineer
> bharat.gohil@xxxxxxxxxx <mailto:bharat.gohil@xxxxxxxxxx>
> +919427054633
--
Julien Grall

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