Re: [Xen-devel] [PATCH 01/10] xen/arm: Implement hip04-d01 platform

[Frediano Ziglio <freddy77@xxxxxxxxx>]

2015-01-13 11:58 GMT+00:00 Ian Campbell <Ian.Campbell@xxxxxxxxxx>:
> On Mon, 2014-11-03 at 10:11 +0000, Frediano Ziglio wrote:
>> Add this new platform to Xen.
>> This platform require specific code to initialize CPUs.
>
> What is the "bootwrapper"? Are you running this on real silicon or on an
> emulator? Can the platform be made to do PSCI instead?
>

Very real. It's actually on my desk and I'm not in Matrix :-)
Has no PSCI support. Would be honestly very great. As we (as company)
write the firmware could be technically doable. There is no plan. This
piece of software is meant to bring the CPU from Secure mode to
Unsecure Hypervisor mode before calling kernel/hypervisor code and
provide supervisor calls.

>> +    np_fab = dt_find_compatible_node(NULL, NULL, "hisilicon,hip04-fabric");
>
> Please add a reference to the DT bindings document for these values.
>
> linux/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt
> seems related but doesn't talk about most of these fields.
>

There are documentation in the Linaro kernel, see
https://git.linaro.org/kernel/linux-linaro-tracking.git/blob/HEAD:/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt.
I hope it will be merged soon.

Frediano

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