From mboxrd@z Thu Jan 1 00:00:00 1970 From: jlee@suse.com (joeyli) Date: Fri, 26 May 2017 16:06:45 +0800 Subject: [PATCH 2/5] efi: Add EFI_SECURE_BOOT bit In-Reply-To: <149563713211.9419.13591529902587407094.stgit@warthog.procyon.org.uk> References: <149563711758.9419.11406612723056598045.stgit@warthog.procyon.org.uk> <149563713211.9419.13591529902587407094.stgit@warthog.procyon.org.uk> Message-ID: <20170526080645.GC15587@linux-l9pv.suse> To: linux-security-module@vger.kernel.org List-Id: linux-security-module.vger.kernel.org On Wed, May 24, 2017 at 03:45:32PM +0100, David Howells wrote: > From: Josh Boyer > > 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 > Signed-off-by: David Howells > cc: linux-efi at vger.kernel.org Reviewed-by: Joey Lee 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 majordomo at vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-security-module" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html