I'll try this out. -- Sent from my iPad On Aug 7, 2013, at 12:02, Jon <jdisnard@xxxxxxxxx> 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@xxxxxxxxx> wrote: >> On Wed, Aug 7, 2013 at 4:47 PM, Adam Goode <adam@xxxxxxxxxxxxx> 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@xxxxxxxxxx> 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 >>>> _______________________________________________ >>>> arm mailing list >>>> arm@xxxxxxxxxxxxxxxxxxxxxxx >>>> https://admin.fedoraproject.org/mailman/listinfo/arm >>> _______________________________________________ >>> arm mailing list >>> arm@xxxxxxxxxxxxxxxxxxxxxxx >>> https://admin.fedoraproject.org/mailman/listinfo/arm >> _______________________________________________ >> arm mailing list >> arm@xxxxxxxxxxxxxxxxxxxxxxx >> https://admin.fedoraproject.org/mailman/listinfo/arm > > > > -- > > -Jon > > > -- > > -Jon > _______________________________________________ > arm mailing list > arm@xxxxxxxxxxxxxxxxxxxxxxx > https://admin.fedoraproject.org/mailman/listinfo/arm _______________________________________________ arm mailing list arm@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/arm
