Re: [Xen-devel] [PATCH] arm64:renesas: Introduce early console for Salvator-X board

[Iurii Mykhalskyi <iurii.mykhalskyi@xxxxxxxxxxxxxxx>]

Hello guys,

I have created wiki page for Salvator-X board:

https://wiki.xen.org/wiki/Xen_ARM_with_Virtualization_Extensions/Salvator-X

And update related yocto layer:

https://github.com/qbeeukraine/meta-platform-xen

Please review & leave your comments.

I am planning to update this layer with Xen 4.8 support in nearly future.

With the best regards,

Iurii Mykhalskyi

On Thu, Nov 10, 2016 at 11:34 AM, Dirk Behme <dirk.behme@xxxxxxxxxxxx> wrote:

On 10.11.2016 10:25, Iurii Mykhalskyi wrote:

Hello Dirk,

On Thu, Nov 10, 2016 at 8:54 AM, Dirk Behme <dirk.behme@xxxxxxxxxxxx

<mailto:dirk.behme@xxxxxxxxxxxm>> wrote:

    On 09.11.2016 13:14, Julien Grall wrote:

        Hello,

        On 09/11/16 07:14, Dirk Behme wrote:

            On 08.11.2016 16:41, Iurii Mykhalskyi wrote:

                Hello Dirk,

                I have made only single change - I recompile ATF to
                leave CPU in EL2
                mode and reflash it.



            Yes, this is what I meant with 'modifying firmware' ;)

            You are loading Xen with U-Boot running in EL2, then?

            With this modification, do all other use cases still work?
            E.g. load and
            boot U-Boot and native Linux kernel without Xen?


        Yes, when Linux is booting from EL2, it will drop to EL1 (see
        el2_setup). As Andre mentioned on the previous thread, U-boot is
        running
        at EL2 on various board (e.g pine64, juno).

        Modifying the firmware was the right way to go as there is no
        solution
        go boot at EL2 from EL1.



    Yes, correct, from general point of view :)

    My question to Iurii is more focused to this concrete board, if
    there everything works fine, too. You know, sometimes the
    implementation on a board might have bugs while it should work well
    in theory ;)

    So I'm just interested if everything works fine for him switching
    ATF to exit in EL2, or if additional fixes/patches are needed for
    this board.


Looks like all basic functions working normally - I have successfully
load linux & rootfs without any additional patches for linux kernel.

Ok, thanks for this info :)

As you ok with this - I will create Salvator-X board related page on Xen
wiki.
But first of all, I will update yocto layer mentioned by Andrii with
minimal setup, based on the latest Renesas & Xen releases.
This should be helpful for easier out of box board setup.

Ack

Best regards

Dirk

--

Iurii Mykhalskyi | Senior Software Engineer
GlobalLogic
P +38.044.492.9695x3664  M +38.096.311.5467  S mad-nemoi
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