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Re: [Xen-devel] Booting XEN on Samsung ARM Chromebook with display support

On Feb 18, 2014, at 11:21 AM, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:

> On Sun, 2014-02-16 at 12:56 +0000, Stefano Stabellini wrote:
>> On Fri, 14 Feb 2014, Francesco Gringoli wrote:
>>> Hello guys,
>>> "building" on the great work done by Anthony I was finally able to boot xen 
>>> and dom0 on the Chromebook with display support.
>>> Basically everything was already done by Anthony, the only problem was the 
>>> .config file of the dom0 missing some options and a couple of files in 
>>> arch/arm/mach-exynos which were crashing the boot process (by reading the 
>>> dtb). Actually I was not able to address the problem in a clever way, but I 
>>> fixed it so boot does not crash (almost) anymore.
>>> What I get is dom0 booting and working, boot logs appear on the display 
>>> like when running archlinux natively. The keyboard does not work as pointed 
>>> out by Anthony but external does, so it is possible to log in and check 
>>> /proc/xen is populated. There are two main issues
>>> 1) sometimes (very few) boot crashes, but late, e.g., after 2 secs
>>> 2) after minutes something weird happens, and it is not anymore possible to 
>>> cat files' content, although ls + cd etc keep working.
>>> I would like to add some files and info to the old wiki page 
>>> (http://wiki.xenproject.org/wiki/Xen_ARM_with_Virtualization_Extensions/Chromebook)
>>>  but it seems I can not edit it.
>> Great job!
> Yes, very nice.
>> Please do request access and update the wiki.
>> Anthony's branches are quite old now, many bugs have been discovered and
>> fixed in the upstream Xen and Linux trees in the meantime.
>> Although I expect that updating the Xen tree could be difficult at this
>> point, it is probably worth it from the stability point of view.
> I agree, ideally the tree would be rebased and whatever needed to be
> (and could be) would be upstreamed. I've no idea what the divergence is
> like, but at least in principal supporting a "new" platform with the
> modern mainline code ought to be loads easier than it was back when
> Anthony started work on this stuff.
I updated the page. I'm starting working on latest Xen only (at the moment) to 
make it booting old Linux tree described in the page.

Keep you posted.
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