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efi: Add kernel param efi=noruntime

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noefi kernel param means actually disabling efi runtime, Per suggestion
from Leif Lindholm efi=noruntime should be better. But since noefi is
already used in X86 thus just adding another param efi=noruntime for
same purpose.

Signed-off-by: Dave Young <[email protected]>
Signed-off-by: Matt Fleming <[email protected]>
This commit is contained in:
Dave Young 2014-08-14 17:15:28 +08:00 • committed by Matt Fleming
commit 5ae3683c38
3 changed files with 13 additions and 3 deletions
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9
drivers/firmware/efi/efi.c
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@ -54,6 +54,15 @@ bool efi_runtime_disabled(void)
return disable_runtime;
}
static int __init parse_efi_cmdline(char *str)
{
if (parse_option_str(str, "noruntime"))
disable_runtime = true;
return 0;
}
early_param("efi", parse_efi_cmdline);
static struct kobject *efi_kobj;
static struct kobject *efivars_kobj;