From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: linux-efi@vger.kernel.org
Cc: Ard Biesheuvel <ardb@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Ard Biesheuvel <ard.biesheuvel@linaro.org>
Subject: [PATCH 2/2] efi: Allow efi=runtime
Date: Fri, 24 Sep 2021 15:49:19 +0200 [thread overview]
Message-ID: <20210924134919.1913476-3-bigeasy@linutronix.de> (raw)
In-Reply-To: <20210924134919.1913476-1-bigeasy@linutronix.de>
In case the command line option "efi=noruntime" is default at built-time, the user
could overwrite its state by `efi=runtime' and allow it again.
This is useful on PREEMPT_RT where "efi=noruntime" is default and the
user might need to alter the boot order for instance.
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
drivers/firmware/efi/efi.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
index 39031cfcb6b92..ae79c33001297 100644
--- a/drivers/firmware/efi/efi.c
+++ b/drivers/firmware/efi/efi.c
@@ -97,6 +97,9 @@ static int __init parse_efi_cmdline(char *str)
if (parse_option_str(str, "noruntime"))
disable_runtime = true;
+ if (parse_option_str(str, "runtime"))
+ disable_runtime = false;
+
if (parse_option_str(str, "nosoftreserve"))
set_bit(EFI_MEM_NO_SOFT_RESERVE, &efi.flags);
--
2.33.0
prev parent reply other threads:[~2021-09-24 13:49 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-24 13:49 [PATCH 0/2] efi: Disable runtime services on RT Sebastian Andrzej Siewior
2021-09-24 13:49 ` [PATCH 1/2] " Sebastian Andrzej Siewior
2021-09-28 13:30 ` Ard Biesheuvel
2021-09-28 13:33 ` Sebastian Andrzej Siewior
2021-09-28 13:34 ` Ard Biesheuvel
2021-09-28 14:24 ` Sebastian Andrzej Siewior
2021-10-20 6:09 ` joeyli
2021-10-20 6:28 ` Sebastian Andrzej Siewior
2021-10-20 6:47 ` joeyli
2021-10-20 7:20 ` Sebastian Andrzej Siewior
2021-09-28 20:28 ` Thomas Gleixner
2021-09-28 20:41 ` Ard Biesheuvel
2021-09-24 13:49 ` Sebastian Andrzej Siewior [this message]
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