[U-Boot] [RFC 1/1] efi_loader: usage of cleanup_before_linux()

[Leif Lindholm]

On Thu, Jul 18, 2019 at 08:53:01PM +0200, Alexander Graf wrote:
> 
> On 18.07.19 19:46, Heinrich Schuchardt wrote:
> > Always call cleanup_before_linux() on ARM 32bit during ExitBootServices().
> > 
> > This fixes a problem problem for booting BSD on ARM 32bit.
> > 
> > Reported-by: Jonathan Gray <jsg at jsg.id.au>
> > Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
> 
> NAK. Instead this should never call cleanup_before_linux() and we declare
> ourselves incompatible to old grub versions. That way we don't lure others
> into believing you could boot with caches disabled in a UEFI world.

Agreed.

This is my fault by the way, for merging a loader in GRUB that was
designed to be used without the linux EFI stub (way, waaaay back).
Feel free to shout.

As of GRUB 2.04 release (and cherry-picked into debian Buster before
that), the 32-bit and 64-bit UEFI ports use the same loader.

/
    Leif