[SeaBIOS] [coreboot] UEFI project ideas

Zoran Stojsavljevic zoran.stojsavljevic at gmail.com
Tue Jun 7 21:13:49 CEST 2016


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

I probably do not. ;-)

> And what has all this to do with seabios?

Did I ever mention SeaBIOS to play minimal TianoCore?

Thank you,
Zoran

On Tue, Jun 7, 2016 at 5:18 PM, Gerd Hoffmann <kraxel at redhat.com> wrote:

> 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?
>
> confused,
>   Gerd
>
>
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