On Tue, Nov 22, 2016 at 12:32:15AM +0000, David Howells wrote: > From: Josh Boyer <[email protected]> > > UEFI machines can be booted in Secure Boot mode. Add a EFI_SECURE_BOOT bit > for use with efi_enabled.
Please add an explanation what you plan to do with this bit going forward. Thanks, Lukas > > Signed-off-by: Josh Boyer <[email protected]> > Signed-off-by: David Howells <[email protected]> > --- > > arch/x86/kernel/setup.c | 5 +++++ > include/linux/efi.h | 1 + > 2 files changed, 6 insertions(+) > > diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c > index 9c337b0e8ba7..a197221a451b 100644 > --- a/arch/x86/kernel/setup.c > +++ b/arch/x86/kernel/setup.c > @@ -1160,6 +1160,11 @@ void __init setup_arch(char **cmdline_p) > > io_delay_init(); > > + if (boot_params.secure_boot) { > + set_bit(EFI_SECURE_BOOT, &efi.flags); > + pr_info("Secure boot enabled\n"); > + } > + > /* > * Parse the ACPI tables for possible boot-time SMP configuration. > */ > diff --git a/include/linux/efi.h b/include/linux/efi.h > index 615d8704f048..3864de3b40ad 100644 > --- a/include/linux/efi.h > +++ b/include/linux/efi.h > @@ -1066,6 +1066,7 @@ extern int __init efi_setup_pcdp_console(char *); > #define EFI_ARCH_1 7 /* First arch-specific bit */ > #define EFI_DBG 8 /* Print additional debug info > at runtime */ > #define EFI_NX_PE_DATA 9 /* Can runtime data regions be > mapped non-executable? */ > +#define EFI_SECURE_BOOT 10 /* Are we in Secure Boot mode? > */ > > #ifdef CONFIG_EFI > /* >
