Re: [PATCH 1/4] riscv: spl: Introduce SPL_OPENSBI_OS_BOOT

[Tom Rini <trini@konsulko.com>]

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On Fri, Dec 09, 2022 at 08:48:37AM -0500, Sean Anderson wrote:
> On 12/7/22 01:23, Rick Chen wrote:
> > In RISC-V, it only provide normal mode booting currently.
> > To speed up the booting process, here provide SPL_OPENSBI_OS_BOOT
> > to achieve this feature which will be call Fast-Boot mode. By
> 
> Can you name this something different. We already have something called
> fastboot in-tree (the Android-derived protocol) and there's a Microsoft
> technology called fastboot (some kind of hibernation). "OS Boot" isn't
> very specific either, since we (almost always) boot an OS. Maybe "Eagle
> mode" by analogy to Falcon mode, which lets SPL directly boot an OS.
> 
> (Is this substantially different from falcon mode anyway?)

I was kind of wondering if this is different, really, from Falcon Mode.
Falcon Mode didn't initially have to factor in other-firmware as that's
not a hard requirement on arm32 like it is on arm64 or risc-v.  But my
first read of this was that it seems like the RISC-V specific side of
doing Falcon Mode and dealing with the prior stage needs correctly.

-- 
Tom

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