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
