[PATCH 2/5] efi: Add EFI_SECURE_BOOT bit
From: jlee@suse.com (joeyli)
Date: 2017-05-26 08:07:01
Also in:
linux-efi, lkml
On Wed, May 24, 2017 at 03:45:32PM +0100, David Howells wrote:
From: Josh Boyer <redacted> 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 <redacted> Signed-off-by: David Howells <dhowells@redhat.com> cc: linux-efi at vger.kernel.org
Reviewed-by: Joey Lee <jlee@suse.com> Regards Joey Lee
quoted hunk ↗ jump to hunk
--- 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
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