README: update README

Signed-off-by: Jia Zhang <qianyue.zj@alibaba-inc.com>

1 files changed, 9 insertions, 2 deletions

diff --git a/README b/README
index 4c99579..678e200 100644
--- a/README
+++ b/README
@@ -75,8 +75,10 @@ The full features in meta-secure-core can be configured with these definitions
 in local.conf:
 
 INITRAMFS_IMAGE = "secure-core-image-initramfs"
-DISTRO_FEATURES_NATIVE_append += " ima tpm tpm2 efi-secure-boot luks"
-DISTRO_FEATURES_append += " ima tpm tpm2 efi-secure-boot luks"
+DISTRO_FEATURES_NATIVE_append += "systemd ima tpm tpm2 efi-secure-boot luks"
+DISTRO_FEATURES_append += "systemd ima tpm tpm2 efi-secure-boot luks modsign"
+MACHINE_FEATURES_NATIVE_append += "efi"
+MACHINE_FEATURES_append += "efi"
 INHERIT += "sign_rpm_ext"
 SECURE_CORE_IMAGE_EXTRA_INSTALL ?= "\
     packagegroup-efi-secure-boot \
@@ -94,3 +96,8 @@ The meta-secure-core provides an image called secure-core-image. Run the
 following command to build it.
 
     $ bitbake secure-core-image
+
+Reference
+=========
+
+[SecureCore - a reference implementation based on meta-secure-core](https://github.com/jiazhang0/SecureCore)