sm8450-common: Implement virtual A/B

Change-Id: I9e5c9a29aeacf382d956f0d5a53bf8f98c717384

BoardConfigCommon.mk

@@ -9,6 +9,23 @@ include vendor/xiaomi/sm8450-common/BoardConfigVendor.mk
 
 COMMON_PATH := device/xiaomi/sm8450-common
 
+# A/B
+AB_OTA_UPDATER := true
+
+AB_OTA_PARTITIONS += \
+    boot \
+    dtbo \
+    odm \
+    product \
+    recovery \
+    system \
+    system_ext \
+    vbmeta \
+    vbmeta_system \
+    vendor \
+    vendor_boot \
+    vendor_dlkm
+
 # Architecture
 TARGET_ARCH := arm64
 TARGET_ARCH_VARIANT := armv8-a-branchprot

common.mk

@@ -26,6 +26,23 @@ $(call inherit-product, frameworks/native/build/phone-xhdpi-6144-dalvik-heap.mk)
 # Inherit from the proprietary version
 $(call inherit-product, vendor/xiaomi/sm8450-common/sm8450-common-vendor.mk)
 
+# A/B
+AB_OTA_POSTINSTALL_CONFIG += \
+    RUN_POSTINSTALL_system=true \
+    POSTINSTALL_PATH_system=system/bin/otapreopt_script \
+    FILESYSTEM_TYPE_system=ext4 \
+    POSTINSTALL_OPTIONAL_system=true
+
+AB_OTA_POSTINSTALL_CONFIG += \
+    RUN_POSTINSTALL_vendor=true \
+    POSTINSTALL_PATH_vendor=bin/checkpoint_gc \
+    FILESYSTEM_TYPE_vendor=ext4 \
+    POSTINSTALL_OPTIONAL_vendor=true
+
+PRODUCT_PACKAGES += \
+    checkpoint_gc \
+    otapreopt_script
+
 # API
 PRODUCT_SHIPPING_API_LEVEL := 31
 BOARD_SHIPPING_API_LEVEL := 31
@@ -60,6 +77,15 @@ PRODUCT_COPY_FILES += \
     $(LOCAL_PATH)/rootdir/etc/ueventd.qcom.rc:$(TARGET_COPY_OUT_VENDOR)/etc/ueventd.rc \
     $(LOCAL_PATH)/rootdir/etc/ueventd-odm.rc:$(TARGET_COPY_OUT_ODM)/etc/ueventd.rc
 
+# Update engine
+PRODUCT_PACKAGES += \
+    update_engine \
+    update_engine_sideload \
+    update_verifier
+
+PRODUCT_PACKAGES_DEBUG += \
+    update_engine_client
+
 # Vendor init
 PRODUCT_COPY_FILES += \
     $(LOCAL_PATH)/rootdir/etc/init.qcom.rc:$(TARGET_COPY_OUT_VENDOR)/etc/init/hw/init.qcom.rc \