[U-Boot] [PATCH v5 3/8] ARM: add assembly routine to switch to non-secure state

Mj Embd mj.embd at gmail.com
Thu Sep 19 21:57:48 CEST 2013


two quick points
(a) xen already has a mode_switch code, so AFAIK xen might not use it
(as suggested by comment in another patch in this patch set)
(b) There are 2 methods of switching from Secure to Hyp mode
one you have proposed another implemented in xen. I was suggesting
take the best approach



On 9/20/13, Christoffer Dall <christoffer.dall at linaro.org> wrote:
> On Thu, Sep 19, 2013 at 10:00:03PM +0530, Mj Embd wrote:
>> Hi Andre,
>>
>> There is another approach taken in xen. (xen/arch/arm/mode_switch.S)
>> Which do you think is the better approach
>>
> Hi there,
>
> I'm not sure I completely understand your question.  Do you think this
> patch series should be changed to take something from Xen?  If so, can
> you please clarify why?
>
> For the record, this patch series has been reviewed and tested quite a
> lot for U-Boot and we would very much like to get this merged and avoid
> further churn, unless there's a compelling technical reason to change
> it.
>
> Thanks,
> -Christoffer
>


-- 
-mj


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