[fedora-arm] F19: uImage load addresses with unified kernel
Graeme Russ
graeme.russ at gmail.com
Wed Mar 27 00:04:23 UTC 2013
Hi Brendan,
On Wed, Mar 27, 2013 at 10:54 AM, Brendan Conoboy <blc at redhat.com> wrote:
> On 03/26/2013 04:49 PM, Graeme Russ wrote:
>>
>> 4. Relocatable kernel (like x86)
>
>
> If I understand correctly it already is relocatable. This is simply the
> address that uboot is instructed to load the kernel into memory at.
So why worry? Just have the load address in the U-Boot environment.
>> 5. Have U-Boot process uImage to adjust for load location (U-Boot
>> already does a similar thing for itself)
>
>
> Likewise, this is the address uboot is instructed to load the kernel at. My
> naive understanding is that uboot loads the header, analyzes it, then loads
> the rest of the file based on the content of that header. If the header
> instructs uboot to load the kernel into non-existent memory it not operate
> correctly.
Not 100% sure the mechanics of U-Boot loading an ARM kernel but I
think it just loads it blindly where it is told to (i.e. does not
analyse the header)
Regards,
Graeme
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