[S] Change in coreboot[master]: payloads/edk2: Add Kconfig to enable UEFI SecureBoot support

[Matt DeVillier (Code Review)]

Attention is currently required from: Martin L Roth, Stefan Reinauer.

Matt DeVillier has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/74869 )

Change subject: payloads/edk2: Add Kconfig to enable UEFI SecureBoot support
......................................................................

payloads/edk2: Add Kconfig to enable UEFI SecureBoot support

Now that MrChromebox's default edk2 branch supports SecureBoot, add a
Kconfig to enable it, and do so by default when MrChromebox's branch
is used and SMMSTORE_V2 is enabled.

TEST=build/boot various boards, verify SecureBoot options available in
payload, SecureBoot status reported properly by Linux/Windows.

Change-Id: I4be58c3315cabe08729d717c59203fdc6a3e2958
Signed-off-by: Matt DeVillier 
---
M payloads/external/Makefile.inc
M payloads/external/edk2/Kconfig
M payloads/external/edk2/Makefile
3 files changed, 27 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/69/74869/1

diff --git a/payloads/external/Makefile.inc b/payloads/external/Makefile.inc
index effab43..5f29063 100644
--- a/payloads/external/Makefile.inc
+++ b/payloads/external/Makefile.inc
@@ -188,6 +188,7 @@
    	CONFIG_ECAM_MMCONF_LENGTH=$(CONFIG_ECAM_MMCONF_LENGTH) \
    	CONFIG_CPU_XTAL_HZ=$(CONFIG_CPU_XTAL_HZ) \
    	CONFIG_SMMSTORE_V2=$(CONFIG_SMMSTORE_v2) \
+		CONFIG_EDK2_SECURE_BOOT_SUPPORT=$(CONFIG_EDK2_SECURE_BOOT_SUPPORT) \
    	GCC_CC_x86_32=$(GCC_CC_x86_32) \
    	GCC_CC_x86_64=$(GCC_CC_x86_64) \
    	GCC_CC_arm=$(GCC_CC_arm) \
diff --git a/payloads/external/edk2/Kconfig b/payloads/external/edk2/Kconfig
index 2c8152f..1c00be0 100644
--- a/payloads/external/edk2/Kconfig
+++ b/payloads/external/edk2/Kconfig
@@ -242,6 +242,11 @@
      Enable serial port output in edk2. Serial output limits the performance of edk2's
      FrontPage.

+config EDK2_SECURE_BOOT_SUPPORT
+	bool "Enable UEFI Secure Boot feature"
+	depends on EDK2_REPO_MRCHROMEBOX && SMMSTORE_V2
+	default y if EDK2_REPO_MRCHROMEBOX && SMMSTORE_V2
+
 config EDK2_CUSTOM_BUILD_PARAMS
    string "edk2 additional custom build parameters"
    default "-D VARIABLE_SUPPORT=SMMSTORE" if EDK2_REPO_MRCHROMEBOX && SMMSTORE_V2
diff --git a/payloads/external/edk2/Makefile b/payloads/external/edk2/Makefile
index b241cf9..2181242 100644
--- a/payloads/external/edk2/Makefile
+++ b/payloads/external/edk2/Makefile
@@ -111,6 +111,10 @@
 ifneq ($(CONFIG_EDK2_SD_MMC_TIMEOUT),)
 BUILD_STR += -D SD_MMC_TIMEOUT=$(shell echo $$(( $(CONFIG_EDK2_SD_MMC_TIMEOUT) * 1000)) )
 endif
+# EDK2_SECURE_BOOT_SUPPORT      = FALSE
+ifeq ($(CONFIG_EDK2_SECURE_BOOT_SUPPORT), y)
+BUILD_STR += -D SECURE_BOOT_ENABLE=TRUE
+endif

#
 # EDKII has the below PCDs that are relevant to coreboot: