[PATCH v5 3/8] bootstd: Support booting EFI where multiple options exist

Tom Rini trini at konsulko.com
Fri Mar 31 20:02:22 CEST 2023


On Fri, Mar 31, 2023 at 10:25:56AM +1300, Simon Glass wrote:

> The current EFI implementation has a strange quirk where it watches
> loaded files and uses the last-loaded file to determine the device that
> is being booted from.
> 
> This is confusing with bootstd, where multiple options may exist. Even
> loading a device tree will cause it to go wrong. There is no API for
> passing this information, since the only entry into booting an EFI image
> is the 'bootefi' command.
> 
> To work around this, call efi_set_bootdev() for EFI images, if possible,
> just before booting.
> 
> Signed-off-by: Simon Glass <sjg at chromium.org>

Shouldn't this all be a simple wrapper around the EFI Standard
BootDeviceOrder or whatever that's called?

-- 
Tom
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