On 01/30/15 08:43, Borislav Petkov wrote: > From: Borislav Petkov <bp@xxxxxxx> > Date: Mon, 26 Jan 2015 19:49:59 +0100 > Subject: [PATCH] efi, x86: Add a "debug" option to the efi= cmdline > Please update Documentation/kernel-parameters.txt also. > ... and hide the memory regions dump behind it. Make it default-off. > > Signed-off-by: Borislav Petkov <bp@xxxxxxx> > Link: http://lkml.kernel.org/r/20141209095843.GA3990@xxxxxxx > --- > arch/x86/platform/efi/efi.c | 5 ++++- > include/linux/efi.h | 1 + > 2 files changed, 5 insertions(+), 1 deletion(-) > > diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c > index dbc8627a5cdf..e859d56ce9f8 100644 > --- a/arch/x86/platform/efi/efi.c > +++ b/arch/x86/platform/efi/efi.c > @@ -491,7 +491,8 @@ void __init efi_init(void) > if (efi_memmap_init()) > return; > > - print_efi_memmap(); > + if (efi_enabled(EFI_DBG)) > + print_efi_memmap(); > } > > void __init efi_late_init(void) > @@ -939,6 +940,8 @@ static int __init arch_parse_efi_cmdline(char *str) > { > if (parse_option_str(str, "old_map")) > set_bit(EFI_OLD_MEMMAP, &efi.flags); > + if (parse_option_str(str, "debug")) > + set_bit(EFI_DBG, &efi.flags); > > return 0; > } > diff --git a/include/linux/efi.h b/include/linux/efi.h > index 0238d612750e..14cec75d7e74 100644 > --- a/include/linux/efi.h > +++ b/include/linux/efi.h > @@ -940,6 +940,7 @@ extern int __init efi_setup_pcdp_console(char *); > #define EFI_64BIT 5 /* Is the firmware 64-bit? */ > #define EFI_PARAVIRT 6 /* Access is via a paravirt interface */ > #define EFI_ARCH_1 7 /* First arch-specific bit */ > +#define EFI_DBG 8 /* Print additional debug info at runtime */ > > #ifdef CONFIG_EFI > /* > -- ~Randy -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
