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

On 25-Sep-2017 6:59 PM, "Julien Grall" <julien.grall@xxxxxxx> wrote:
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?

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.


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.



On Mon, Sep 25, 2017 at 5:45 PM, Andrii Anisov <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

    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*

Bharat Gohil
Sr.Software Engineer
bharat.gohil@xxxxxxxxxx <mailto:bharat.gohil@xxxxxxxxxm>

Julien Grall

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