On Wed, May 24, 2017 at 03:45:32PM +0100, David Howells wrote: > From: Josh Boyer <[email protected]> > > UEFI machines can be booted in Secure Boot mode. Add a EFI_SECURE_BOOT bit > that can be passed to efi_enabled() to find out whether secure boot is > enabled. > > This will be used by the SysRq+x handler, registered by the x86 arch, to > find out whether secure boot mode is enabled so that it can be disabled. > > Signed-off-by: Josh Boyer <[email protected]> > Signed-off-by: David Howells <[email protected]> > cc: [email protected]
Reviewed-by: Joey Lee <[email protected]> Regards Joey Lee > --- > > drivers/firmware/efi/secureboot.c | 1 + > include/linux/efi.h | 1 + > 2 files changed, 2 insertions(+) > > diff --git a/drivers/firmware/efi/secureboot.c > b/drivers/firmware/efi/secureboot.c > index cf5bccae15e8..730518061a14 100644 > --- a/drivers/firmware/efi/secureboot.c > +++ b/drivers/firmware/efi/secureboot.c > @@ -24,6 +24,7 @@ void __init efi_set_secure_boot(enum efi_secureboot_mode > mode) > pr_info("Secure boot disabled\n"); > break; > case efi_secureboot_mode_enabled: > + set_bit(EFI_SECURE_BOOT, &efi.flags); > pr_info("Secure boot enabled\n"); > break; > default: > diff --git a/include/linux/efi.h b/include/linux/efi.h > index e2f53edccf15..5e9a2d7df089 100644 > --- a/include/linux/efi.h > +++ b/include/linux/efi.h > @@ -1081,6 +1081,7 @@ extern int __init efi_setup_pcdp_console(char *); > #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_MEM_ATTR 10 /* Did firmware publish an > EFI_MEMORY_ATTRIBUTES table? */ > +#define EFI_SECURE_BOOT 11 /* Are we in Secure Boot mode? > */ > > #ifdef CONFIG_EFI > /* > > -- > To unsubscribe from this list: send the line "unsubscribe linux-efi" in > the body of a message to [email protected] > More majordomo info at http://vger.kernel.org/majordomo-info.html
