[TF-A] Proposal: TF-A to adopt hand-off blocks (HOBs) for information passing between boot stages

[Tom Rini]

On Thu, Jun 17, 2021 at 04:45:48PM -0700, raghu.ncstate at icloud.com wrote:

[snip]
> I also think it is incorrect to partition platforms into what u-boot/linux boot/embdedded systems do and what “UEFI/private code” does. UEFI is a huge part of the ARM eco-system and is being used fairly extensively and supported across different markets and is not private code.

I don't think "u-boot/linux boot/embedded systems" vs "UEFI/private
code" is the right distinction.  It's "device tree/related" vs
"ACPI/related" as the difference between U-Boot (for example) and EDK II
(for another example) on aarch64 booting a system via EFI is that U-Boot
is likely to be passing in a device tree (setting aside what we can do
on x86 as a digression) and EDK II being likely to pass ACPI/related.
In both cases we can quite easily be talking about all of the data
having been written to persistent flash and automatically passed along.

To riff on a phrase, U-Boot can be quite boring too.

-- 
Tom
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