Re: ARM64:Porting xen to new hardware

[bharat gohil <ghl.bhrt@gmail.com>]

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On Fri, Sep 29, 2017 at 11:12 PM, Julien Grall <julien.grall@arm.com> wrote:

>
>
> 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?
>
In my case, compatible string is "ns16550a".
Thanks,

>
> Cheers,
>
> Thanks,
>> Bharat
>>
>> On Mon, Sep 25, 2017 at 11:38 PM, Oleksandr Tyshchenko <
>> olekstysh@gmail.com <mailto:olekstysh@gmail.com>> wrote:
>>
>>     Hi, Bharat
>>
>>     On Mon, Sep 25, 2017 at 8:40 PM, bharat gohil <ghl.bhrt@gmail.com
>>     <mailto:ghl.bhrt@gmail.com>> wrote:
>>
>>     >
>>     >
>>     > On 25-Sep-2017 6:59 PM, "Julien Grall" <julien.grall@arm.com
>> <mailto:julien.grall@arm.com>> 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@epam.com <mailto:andrii_anisov@epam.com>
>>      >> <mailto:andrii_anisov@epam.com <mailto:andrii_anisov@epam.com>>>
>>     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@harman.com <mailto:bharat.gohil@harman.com>
>>     <mailto:bharat.gohil@harman.com <mailto:bharat.gohil@harman.com>>
>>      >> +919427054633 <tel:%2B919427054633>
>>      >
>>      >
>>      > --
>>      > Julien Grall
>>      >
>>      >
>>
>>
>>
>>     --
>>     Regards,
>>
>>     Oleksandr Tyshchenko
>>
>>
>>
>>
>> --
>> Regards,
>> Bharat Gohil
>> Sr.Software Engineer
>> bharat.gohil@harman.com <mailto:bharat.gohil@harman.com>
>> +919427054633
>>
>
> --
> Julien Grall
>



-- 
Regards,
Bharat Gohil
Sr.Software Engineer
bharat.gohil@harman.com
+919427054633

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