efivars

[Greg KH]

On Wed, Sep 22, 2021 at 10:02:43PM -0400, Ruben Safir wrote:
> On 9/22/21 1:04 PM, Valdis Klētnieks wrote:
> > You might want to read Documentation/x86/boot.rst and think about what  the OS
> > is expecting to get passed from the boot loader, and then think about how you
> > would deal with the situation if that information wasn't passed along.
> 
> 
> Link?
> 
> FWIW, it doesn't need anything from the boot loader.  The installed OS
> is capable of IDing hardware and running.

How does the OS determine something as "simple" as "where is the memory
in the system" without getting that information from the bootloader?

How does the hardware describe itself to the OS?

> I've read through the entire documantation for UEFI, as boring as that
> is never saw anyiong about passing info to the OS.

I think you missed some sections :)

> I did a sumation of this at one point:
> 
> http://www.nylxs.com/docs/grad_school/uefi/page1.html

Private page :(