I'll try this out.
--
Sent from my iPad
On Aug 7, 2013, at 12:02, Jon <jdisnard(a)gmail.com> wrote:
There is a HYP enabled u-boot floating around.
http://www.virtualopensystems.com/media/chromebook/nv_u-boot-snow.kpart
So far I've been unable to get it to boot Fedora, but others are welcome to try.
Here is the git for the above:
https://github.com/virtualopensystems/u-boot
They also have some documentation:
https://lists.cs.columbia.edu/pipermail/kvmarm/2013-July/006481.html
Regards,
-Jon Disnard
fas: parasense
irc: masta
On Wed, Aug 7, 2013 at 10:51 AM, Peter Robinson <pbrobinson(a)gmail.com> wrote:
> On Wed, Aug 7, 2013 at 4:47 PM, Adam Goode <adam(a)spicenitz.org> wrote:
>> Was there ever a resolution to this? I am happy to file a bug in the
>> chromium tracker to get this looked at, if needed.
>
> None that I'm aware of but if you could file a bug in the chromium
> tracker that would be fab.
>
> Peter
>
>> Adam
>>
>>
>> On Fri, Jul 5, 2013 at 12:16 PM, Richard W.M. Jones <rjones(a)redhat.com>
wrote:
>>> On Fri, Jul 05, 2013 at 11:30:01AM -0400, Jon Masters wrote:
>>>> On 07/05/2013 05:07 AM, Richard W.M. Jones wrote:
>>>>> On Wed, Jul 03, 2013 at 11:59:28AM -0500, Jon wrote:
>>>>>> I'm pleased to announce the availability of Fedora 19 for the
2012 Samsung
>>>>>> Chromebook featuring ARM Exynos dual core A15 processor.
>>>>>
>>>>> Sorry to slightly hijack this thread. I will try your remix later.
>>>>>
>>>>> Reading the comments on
https://lwn.net/Articles/557132/#Comments
>>>>> it seems as if the news on KVM on the Chromebook is not good. It
>>>>> doesn't boot into HYP mode, and there's no way to make it
boot into
>>>>> HYP mode, so KVM won't be supported. Is that right?
>>>>
>>>> That's roughly what I'd expect to be the case. There might be a
signed
>>>> U-Boot someone has hacked that does enable HYP mode, but otherwise I
>>>> suspect you're out of luck. I'll ask around during Linaro
Connect.
>>>
>>> I asked about this on #kvm-arm earlier today and got this long reply:
>>>
>>> 11:58 < rwmjones> I'm reading a comment here:
>>> 11:58 < rwmjones>
https://lwn.net/Articles/557561/
>>> 11:58 < rwmjones> which suggests that KVM on the Samsung Chromebook
2012 (ARM A15 version) isn't possible because the
>>> bootloader doesn't boot into HYP mode
>>> 11:58 < rwmjones> is this true? if so is there a way around it?
>>> 11:59 < pm215> IIRC the bootloader gets control in secure-SVC
>>> 11:59 < pm215> it is from there possible to get to NS-HYP
>>> 11:59 < pm215> it's just that the stock bootloader doesn't do
this before booting the kernel
>>> 11:59 < rwmjones> so what's involved in making it work?
>>> 11:59 < pm215> somebody needs to write some code and get it into the
bootloader
>>> 12:00 < rwmjones> ok, and the bootloader can be replaced (next comment
down suggests this requires soldering)?
>>> 12:01 < pm215> I believe this to be true, though I don't have a
chromebook
>>> 12:01 < pm215> I think you get the google bootloader to chain boot some
other bootloader which you do have control of, and then
>>> that can actually boot your os
>>> 12:02 < suihkulokki> or maybe we could just prepend some code in front
of the kernel zimage that switches to HYP mode?
>>> 12:02 < pm215> nope
>>> 12:02 < suihkulokki> damn
>>> 12:02 < pm215> we spent quite a long time being very firm that the ABI
here is "bootloader's job to get this right"
>>> 12:03 < pm215> there are some u-boot patches currently going through
code review to do the go-to-hyp-mode thing properly for
>>> arndale
>>> 12:03 < pm215> hopefully if they get upstream it will be more
straightforward to say "ok, I have $other-board and it needs to
>>> do this too"
>>> 12:05 < apritzel> which would require that the Chromebook u-boot
support is upstream as well
>>> 12:05 < apritzel> AFAIK this is not the case currently
>>>
>>> [There's more of this, but that seems to cover the main points]
>>>
>>> Reading around this, it does seem as if it's possible to get from
>>> secure SVC to HYP (although not easy).
>>>
>>> Rich.
>>>
>>> --
>>> Richard Jones, Virtualization Group, Red Hat
http://people.redhat.com/~rjones
>>> virt-top is 'top' for virtual machines. Tiny program with many
>>> powerful monitoring features, net stats, disk stats, logging, etc.
>>>
http://people.redhat.com/~rjones/virt-top
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--
-Jon
--
-Jon
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