From 3363a0b8d66e52f1e8eacd983f661ac385a72e1a Mon Sep 17 00:00:00 2001
From: Steve Muckle <smuckle@google.com>
Date: Wed, 12 Feb 2020 13:38:28 -0800
Subject: initial GKI boot.img support

The GKI boot.img should be generated alongside the GSI. To make this
possible, define a flag (TARGET_NO_VENDOR_BOOT) that can be used to
disable the generation of the vendor_boot image.

Bug: 138323550
Change-Id: I91181853b26815e68a2fa2216b68579780d034dc
---
 core/board_config.mk                      |  4 +++-
 target/board/generic_arm64/BoardConfig.mk |  8 ++++++++
 target/board/generic_arm64/device.mk      | 10 ++++++++++
 target/product/aosp_arm64.mk              |  1 -
 target/product/sdk_phone_arm64.mk         |  1 +
 5 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/core/board_config.mk b/core/board_config.mk
index 5d658dc1f4..4efe10a7fa 100644
--- a/core/board_config.mk
+++ b/core/board_config.mk
@@ -361,7 +361,9 @@ endif
 BUILDING_VENDOR_BOOT_IMAGE :=
 ifdef BOARD_BOOT_HEADER_VERSION
   ifneq ($(call math_gt_or_eq,$(BOARD_BOOT_HEADER_VERSION),3),)
-    BUILDING_VENDOR_BOOT_IMAGE := true
+    ifneq ($(TARGET_NO_VENDOR_BOOT),true)
+      BUILDING_VENDOR_BOOT_IMAGE := true
+    endif
     ifdef BUILDING_RECOVERY_IMAGE
       ifneq ($(BOARD_USES_RECOVERY_AS_BOOT),true)
         $(error Boot header version >=3 requires recovery as boot)
diff --git a/target/board/generic_arm64/BoardConfig.mk b/target/board/generic_arm64/BoardConfig.mk
index f5caf7015e..8f30e6d4e2 100644
--- a/target/board/generic_arm64/BoardConfig.mk
+++ b/target/board/generic_arm64/BoardConfig.mk
@@ -55,8 +55,16 @@ endif
 include build/make/target/board/BoardConfigGsiCommon.mk
 include build/make/target/board/BoardConfigEmuCommon.mk
 
+TARGET_NO_KERNEL := false
+TARGET_NO_VENDOR_BOOT := true
+BOARD_USES_RECOVERY_AS_BOOT := true
+
+BOARD_BOOTIMAGE_PARTITION_SIZE := 0x02000000
 BOARD_USERDATAIMAGE_PARTITION_SIZE := 576716800
 
+BOARD_BOOT_HEADER_VERSION := 3
+BOARD_MKBOOTIMG_ARGS += --header_version $(BOARD_BOOT_HEADER_VERSION)
+
 # Emulator system image is going to be used as GSI and some vendor still hasn't
 # cleaned up all device specific directories under root!
 
diff --git a/target/board/generic_arm64/device.mk b/target/board/generic_arm64/device.mk
index e5d8e61d02..4fcae46285 100644
--- a/target/board/generic_arm64/device.mk
+++ b/target/board/generic_arm64/device.mk
@@ -14,6 +14,16 @@
 # limitations under the License.
 #
 
+# Cuttlefish has GKI kernel prebuilts, so use those for the GKI boot.img.
+ifeq ($(TARGET_PREBUILT_KERNEL),)
+    LOCAL_KERNEL := device/google/cuttlefish_kernel/5.4-arm64/kernel
+else
+    LOCAL_KERNEL := $(TARGET_PREBUILT_KERNEL)
+endif
+
+PRODUCT_COPY_FILES += \
+    $(LOCAL_KERNEL):kernel
+
 # Adjust the Dalvik heap to be appropriate for a tablet.
 $(call inherit-product-if-exists, frameworks/base/build/tablet-dalvik-heap.mk)
 $(call inherit-product-if-exists, frameworks/native/build/tablet-dalvik-heap.mk)
diff --git a/target/product/aosp_arm64.mk b/target/product/aosp_arm64.mk
index e133db4dbd..491397f2d4 100644
--- a/target/product/aosp_arm64.mk
+++ b/target/product/aosp_arm64.mk
@@ -53,7 +53,6 @@ $(call inherit-product, $(SRC_TARGET_DIR)/product/aosp_product.mk)
 #
 # All components inherited here go to vendor image
 #
-$(call inherit-product-if-exists, device/generic/goldfish/arm64-vendor.mk)
 $(call inherit-product, $(SRC_TARGET_DIR)/product/emulator_vendor.mk)
 $(call inherit-product, $(SRC_TARGET_DIR)/board/generic_arm64/device.mk)
 
diff --git a/target/product/sdk_phone_arm64.mk b/target/product/sdk_phone_arm64.mk
index ad726333a7..9024890d2c 100644
--- a/target/product/sdk_phone_arm64.mk
+++ b/target/product/sdk_phone_arm64.mk
@@ -16,6 +16,7 @@
 QEMU_USE_SYSTEM_EXT_PARTITIONS := true
 
 $(call inherit-product, $(SRC_TARGET_DIR)/product/aosp_arm64.mk)
+$(call inherit-product-if-exists, device/generic/goldfish/arm64-vendor.mk)
 
 # Define the host tools and libs that are parts of the SDK.
 $(call inherit-product, sdk/build/product_sdk.mk)
-- 
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