tree ea57e1c206b0ef0a7fbd4ce92c9f1401e4498df4
parent 653e7a28ea666ac8d1ccc28b406fa96b70425fef
author Andy Ross <andrew.j.ross@intel.com> 1621032180 -0700
committer Anas Nashif <anas.nashif@intel.com> 1621107002 -0400

arch/x86: Correct multiboot interpretation when building for EFI

When loaded via EFI, we obviously don't have a multiboot info pointer
available (we might have an EFI system table, but zefi doesn't pass
that through yet).  Don't try to parse the "whatever garbage was in
%rbp" as a multiboot table.

The configuration is a little clumsy, as strictly our EFI kconfig just
says we're "building for" EFI but not that we'll boot that way.  And
tests like arch/x86/info are trying to set CONFIG_MULTIBOOT=n
unconditionally, when it really should be something they detect from
devicetree or wherever.

Fixes #33545

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>