efi/libstub: Implement printk-style logging

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Use the efi_printk function in efi_info/efi_err, and add efi_debug. This
allows formatted output at different log levels.

Add the notion of a loglevel instead of just quiet/not-quiet, and
parse the efi=debug kernel parameter in addition to quiet.

Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200520170223.GA3333632@rani.riverdale.lan/
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>

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Arvind Sankar 2020-05-20 19:07:54 +02:00 • committed by Ard Biesheuvel

parent 8fb331e10b

commit 23d5b73fbf

2 changed files with 35 additions and 8 deletions

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29

drivers/firmware/efi/libstub/efi-stub-helper.c

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14

drivers/firmware/efi/libstub/efistub.h

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