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Re: [MirageOS-devel] Cubieboard4 & xen-arm-builder

On 12 April 2015 at 05:33, Anil Madhavapeddy <anil@xxxxxxxxxx> wrote:
> On 11 Apr 2015, at 00:28, Thomas Leonard <talex5@xxxxxxxxx> wrote:
>> On 10 April 2015 at 12:26, Nick Betteridge <buzzheavyyear@xxxxxxxxxxx> wrote:
>>> I've just received a Cubieboard4 and I'm trying to work out what's needed to
>>> add it to blobs.openmirage.org.
>>> Comparing boot-cubieboard2.cmd and boot-cubietruck.cmd, there are two
>>> sections which differ:
>>> 1. The address locations: kernel, ramdisk etc.
>>> 2. The sun7i-a20-cubieboard2/cubietruck.dtb files.
>>> Does anyone have any idea on where to derive the (1)?
>> I got the original information from here:
>> http://wiki.xen.org/wiki/Xen_ARM_with_Virtualization_Extensions/Allwinner
>> I think the CB4 has the same amount of memory as the CB3, so it might
>> be fine as-is.
>>> The dtb file I can create from the linaro 15.X branch (sun9i-a80-optimus.dts
>>> & sun9i-a80.dtsi).
>>> Also, is there anything else I've missed and need to take care of?
> I've ordered one for myself as well.  The extra RAM will certainly
> come in useful for deployments!
> If you have a setup with a serial cable, something else to experiment
> with is to upgrade the version of Xen that's supplied to Xen 4.5.
> The current Xen 4.4-rc had a limitation that half of the board memory
> can't be assigned to domUs, and I think that got fixed in Xen 4.5.
> Thomas, do you remember the details of this?

As far as I know that's the case for Dom0:


It doesn't mention any limit for DomUs, but that wouldn't normally
affect unikernels.

Dr Thomas Leonard        http://0install.net/
GPG: 9242 9807 C985 3C07 44A6  8B9A AE07 8280 59A5 3CC1
GPG: DA98 25AE CAD0 8975 7CDA  BD8E 0713 3F96 CA74 D8BA

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