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Date: Thu, 23 Oct 2014 14:41:10 +0200
From: Eric Auger <eric.auger@linaro.org>
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Subject: Re: [Qemu-devel] dynamic sysbus instantiation and load_dtb
	implementation
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To: Alexander Graf <agraf@suse.de>, Peter Maydell <peter.maydell@linaro.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>, qemu list <qemu-devel@nongnu.org>, Alex Williamson <alex.williamson@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Antonios Motakis <a.motakis@virtualopensystems.com>, Christoffer Dall <christoffer.dall@linaro.org>

On 10/23/2014 01:41 PM, Eric Auger wrote:
> Hi,
> 
> Thanks everyone for entering the thread & reading my long email.
> 
> Alex, I indeed can register the notifier in the machine file after 
s/after/before
Eric
the
> platform bus instantiation. This indeed guarantees the notifiers are
> called in the right order ...

> 
> Thanks
> 
> Best Regards
> 
> Eric
> 
> On 10/23/2014 01:26 PM, Alexander Graf wrote:
>>
>>
>> On 23.10.14 13:24, Peter Maydell wrote:
>>> On 23 October 2014 12:23, Alexander Graf <agraf@suse.de> wrote:
>>>> On 23.10.14 12:19, Ard Biesheuvel wrote:
>>>>> The reason for this change was that, before, the DTB would only be
>>>>> generated once, and after a reset, the machine would go through the
>>>>> kernel boot protocol as before but the DTB pointer would point to
>>>>> garbage. Any idea how ppc deals with this? Do they recreate the device
>>>>> tree after each reset?
>>>>
>>>> Yes, we regenerate the device tree on each reset.
>>>
>>> Any particular reason? Surely it's always the same...
>>
>> We have the code in place anyway, it's not a performance critical code
>> path and putting it into a rom would be a waste of RAM, as it'd keep yet
>> another copy of something we can easily regenerate.
>>
>> It's a matter of personal preference I guess.
>>
>>
>> Alex
>>
>