[SeaBIOS] [coreboot] UEFI project ideas

Gerd Hoffmann kraxel at redhat.com
Tue Jun 7 17:18:31 CEST 2016

On Di, 2016-06-07 at 16:35 +0200, Zoran Stojsavljevic wrote:
> > Note that you can build seabios as CSM for tianocore already.

> These are the opposites: SeaBIOS is CSM ON (emulates Leagcy BIOS),
> while Tiano Core supposed to be CSM OFF (UEFI), Thus, SeaBIOS and
> Tiano Core exclude each other (should not be used together -> wrong
> architecture).

I fail to see what you are trying to tell me.
I'm not sure you even know what a CSM is.

> > What is the point? You can just run tianocore as coreboot playload.

> The point is to make minimal Tiano Core (minimum for making FAT32
> partition/file system on HDD/SDD to create /boot/EFI/ directory, in
> other words minimal UEFI compliant BIOS), Tiano Core as such is good
> to be used/run for/on x86 architecture ONLY (and side effect is the
> extended time for booting, since all these DXE drivers must be
> installed, which will be later mostly replaced/run over with OS
> drivers, except run time services).

> As such, Minimal Tiano Core (minimal UEFI compliant BIOS) could be
> used on ARM architectures too, thus making ARM HW platforms also
> compatible/lookalike as x86 UEFI compliant BIOS.

tianocore already runs on arm.
seabios doesn't and it never will.

> In nutshell, then you can build PC/Laptop with ARM CPU/SoC HW
> platform, having coreboot + minimal Tiano Core + WIN 10 Boot Loader +
> WIN10 on it (since WIN10 BL does see UEFI compliance, not knowing what
> is really under the hood). ;-)

And what has all this to do with seabios?


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