Xen project Mailing List

Hi,

I have checked if the delay is coming from kernel initialization.But I can see that there is a 1.9s delay between Freed 264kB init memory and gic_update_one_lr .When i traced the function call I can see that entry point is from DEFINE_TRAP_ENTRY_NOIRQ in entry.S,and it's linked to do_trap_irq.S.So i'm afraid that it's coming from xen itself.Any help on this is appreciated.

Thanks & Regards

subhasree

On Tue, Mar 10, 2020 at 8:58 PM Subhasree P V <subhasree.pv@xxxxxxxxxxxxxxxxxxx> wrote:

Thank you for the clarification. I'll look into it.

Regards
Subhasree

On Tue, Mar 10, 2020, 8:49 PM Julien Grall <julien@xxxxxxx> wrote:
Hi

On 10/03/2020 15:05, Subhasree P V wrote:
> Sorry for the inconvenience Julien. I have top posted by mistake.Will
> continue in the same thread.Thanks for your patience and help.

Please read this [1].

>
> I have used the Linux-dom0 and xen which was provided in the odroid
> wiki.It has support for the board.I don't think it is out of support
> kernel because I was able to boot Dom0 and domu in odroid-xu4.I have
> added bootargs in boot.ini by modifying it.but when I try to set
> earlycon, I couldn't see it defined anywhere in linux dom0 that I'm
> using currently.I have downloaded another Dom0 kernel and I was able to
> found earlycon in it.but not sure if it has support for odroid-xu4.

Booting a kernel does not mean a community will support it.

By wiki, I guess you are referring to [2]. If so, this is a kernel
provided by the Odroid community (or a member of).

I am afraid, I am not going to support this. For new development, my
recommendation is to use newer (or LTS) kernel as they get bug/security
fixes.

If you want support on this specific kernel then please contact the
Odroid community.

Cheers,

> Thanks & Regards
> Subhasree

[1] https://en.wikipedia.org/wiki/Posting_style#Top-posting
[2]
https://wiki.odroid.com/odroid-xu4/application_note/software/xen_virtualization

--
Julien Grall

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Re: [Xen-users] Xen boot time optimization