Re: [MirageOS-devel] Mirage Xen/ARM update

[Anil Madhavapeddy <anil@xxxxxxxxxx>]

On 15 Jul 2014, at 11:36, Thomas Leonard <talex5@xxxxxxxxx> wrote:

> [ CC'ing mirageos-devel ]
> 
> On 15 July 2014 11:24, buzz heavyyear <buzzheavyyear@xxxxxxxxxxx> wrote:
>> Still have the same issue (on Cubieboard2) :
>> 
>> I updated xen-hypervisor and xen-utils (hf, 4.4) and rebooted
>> 
>> linaro@linaro-developer:~$ xl list
>> ERROR:  Can't find version 4.4 of xen utils, bailing out!
>> 
>> Perhaps I should wait until everything has been merged? I really wanted to
>> get this working before moving onto libvirt.
>> 
>> If  you can't think of anything off the top of your head, I'll switch back
>> to my other sdcard with Anil's original image and play around with libvirt,
>> and then wait for merging.
> 
> If you have a working image already then you can use that. The image
> just contains a normal Xen installation. The Mirage stuff gets added
> later.

I wonder if it's worth compiling a custom 4.4 Xen with debug=y enabled
for this image.  It would make the serial console output more useful if
guest emergency console logs show up...

> 
> [ I've filed a bug report at https://bugs.linaro.org/show_bug.cgi?id=189 ]
> 
>> Incidentally, I've been reading through the ARM Cortex-A's programming
>> manual, chapter on bigLittle cores and task scheduling. I guess all of this
>> is handled in Linux/Xen and not in minios? My interest is simply about
>> switching on/off cores when there are many/few mirageos instances running.
> 
> I don't know, but presumably that's how it would work.
> 
>> Is this anther one for the lists?!
> 
> Probably best to keep all discussion on the list, as I'm sure other
> people will find it helpful too.

Please do keep discussions about ARM on the list -- I certainly learn a lot
from reading things like this.

-anil


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