Hi Simon,
Thanks for the clarification.
On 14/11/2024 22:06, Simon Glass wrote:
Hi Harrison,
On Thu, 14 Nov 2024 at 13:41, Harrison Mutai <[email protected]> wrote:
Hi all,
I wanted to clarify some details about the settings for initializing a Bloblist
(i.e., CONFIG_BLOBLIST_ALLOC, CONFIG_BLOBLIST_FIXED, CONFIG_BLOBLIST_PASSAGE).
The documentation states that if CONFIG_BLOBLIST_PASSAGE is selected, it uses
the bloblist in the incoming standard passage.
Does this mean that the bloblist is used in-place wherever the previous stage
places it? For example, if TF-A passes a bloblist at an address specified in
the platform's boot parameters, would this mode use the bloblist in that
location?
Yes that's right, but if BLOBLIST_SIZE_RELOC is used, U-Boot may relocate it.
That's what I thought but was slightly tripped-up by the wording in the
documentation. Correct me if I'm mistaken, but it doesn't appear to be a
supported use-case in U-Boot currently? From what I can see,
bloblist_init assumes either BLOBLIST_ALLOC or BLOBLIST_FIXED.
The reason I ask is that I'm preparing some patches to add bloblist support to
vexpress64, and I'm looking to configure this platform without specifying
BLOBLIST_ADDR or BLOBLIST_SIZE (i.e., automatically detect these).
Yes, that is a better way to do it, now that we have the ability to
pass a bloblist between phases.
Thanks for your help!
Best regards,
Harrison
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I hope not!
Argh - apologies for this!
Regards,
Simon
All the best,
Harrison
