6 Commits

Author SHA1 Message Date
Robbie Harwood
26031d3b10 efi: Don't display a uefi-firmware entry if it's not supported
Add a new --is-supported option to commands/efi/efifwsetup and
conditionalize display on it.

Signed-off-by: Robbie Harwood <rharwood@redhat.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2022-08-20 01:26:06 +02:00
Javier Martinez Canillas
1e79bbfbda commands/efi/efifwsetup: Print an error if boot to firmware setup is not supported
The "fwsetup" command is only registered if the firmware supports booting
to the firmware setup UI. But it could be possible that the GRUB config
already contains a "fwsetup" entry, because it was generated in a machine
that has support for this feature.

To prevent users getting an error like:

    error: ../../grub-core/script/function.c:109:can't find command `fwsetup'.

if it is not supported by the firmware, let's just always register the
command but print a more accurate message if the firmware doesn't
support this option.

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Robbie Harwood <rharwood@redhat.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2022-08-20 00:23:18 +02:00
Robbie Harwood
dbc641ac92 efi: Make all grub_efi_guid_t variables static
This is believed to result in smaller code.

Signed-off-by: Robbie Harwood <rharwood@redhat.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2022-08-20 00:23:11 +02:00
Robbie Harwood
01d1953fc5 commands/efi/efifwsetup: Add missing grub_free()s
Each call of grub_efi_get_variable() needs a grub_free().

Signed-off-by: Robbie Harwood <rharwood@redhat.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2022-08-20 00:19:00 +02:00
Daniel Kiper
04ae030d0e efi: Return grub_efi_status_t from grub_efi_get_variable()
This is needed to properly detect and report UEFI Secure Boot status
to the x86 Linux kernel. The functionality will be added by subsequent
patches.

Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
Signed-off-by: Marco A Benatto <mbenatto@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2020-12-11 13:54:54 +01:00
Peter Jones
c5052c81ab * grub-core/Makefile.core.def (efifwsetup): New module.
* grub-core/commands/efi/efifwsetup.c: New file.
	* grub-core/kern/efi/efi.c (grub_efi_set_variable): New function
	* include/grub/efi/api.h (GRUB_EFI_OS_INDICATIONS_BOOT_TO_FW_UI):
	New define.
	* include/grub/efi/efi.h (grub_efi_set_variable): New proto.
2012-09-08 09:40:24 +02:00