Evolution-X-Tensor/device_google_gs201
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Build init_boot for new devices

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Builds a new init_boot.img with the ramdisk that was previously in
boot.img.
Removes the ramdisk from boot.img.
Change fstab to make sure the /dev/block/by-name/init_boot_* entries are
created in first stage init for Verified Boot.
Add init_boot.img to the list of OTA images so it is picked up for OTA
updates.

Test: unpack_bootimg --boot_img=boot.img
Test: unpack_bootimg --boot_img=init_boot.img
Test: Build and boot new device with required bootloader changes
Bug: 211823573

Merged-In: Idbd700b17d862f48ea568d1274a6550b965763ea
Change-Id: Idbd700b17d862f48ea568d1274a6550b965763ea
This commit is contained in:
Devin Moore 2022-01-14 22:21:43 +00:00
parent 5443c7ec01
commit 2b15c10b02
2 changed files with 14 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

13
BoardConfig-common.mk
View file

@ -67,6 +67,9 @@ AB_OTA_PARTITIONS += \
ifneq ($(PRODUCT_BUILD_BOOT_IMAGE),false)
AB_OTA_PARTITIONS += boot
endif
ifneq ($(PRODUCT_BUILD_INIT_BOOT_IMAGE), false)
AB_OTA_PARTITIONS += init_boot
endif
ifneq ($(PRODUCT_BUILD_VENDOR_BOOT_IMAGE),false)
AB_OTA_PARTITIONS += vendor_boot
AB_OTA_PARTITIONS += dtbo
@ -136,6 +139,12 @@ BOARD_AVB_BOOT_ALGORITHM := SHA256_RSA2048
BOARD_AVB_BOOT_ROLLBACK_INDEX := $(PLATFORM_SECURITY_PATCH_TIMESTAMP)
BOARD_AVB_BOOT_ROLLBACK_INDEX_LOCATION := 2
# Enable chained vbmeta for init_boot images
BOARD_AVB_INIT_BOOT_KEY_PATH := external/avb/test/data/testkey_rsa2048.pem
BOARD_AVB_INIT_BOOT_ALGORITHM := SHA256_RSA2048
BOARD_AVB_INIT_BOOT_ROLLBACK_INDEX := $(PLATFORM_SECURITY_PATCH_TIMESTAMP)
BOARD_AVB_INIT_BOOT_ROLLBACK_INDEX_LOCATION := 4
TARGET_USERIMAGES_USE_EXT4 := true
TARGET_USERIMAGES_USE_F2FS := true
BOARD_USERDATAIMAGE_PARTITION_SIZE := 11796480000
@ -328,12 +337,16 @@ BOARD_RAMDISK_USE_LZ4 := true
BOARD_BOOT_HEADER_VERSION := 4
BOARD_MKBOOTIMG_ARGS += --header_version $(BOARD_BOOT_HEADER_VERSION)
BOARD_INIT_BOOT_HEADER_VERSION := 4
BOARD_MKBOOTIMG_INIT_ARGS += --header_version $(BOARD_INIT_BOOT_HEADER_VERSION)
BOARD_VENDOR_RAMDISK_FRAGMENTS := dlkm
BOARD_VENDOR_RAMDISK_FRAGMENT.dlkm.KERNEL_MODULE_DIRS := top
# Enable AVB2.0
BOARD_AVB_ENABLE := true
BOARD_BOOTIMAGE_PARTITION_SIZE := 0x04000000
BOARD_INIT_BOOT_IMAGE_PARTITION_SIZE := 0x800000
BOARD_VENDOR_BOOTIMAGE_PARTITION_SIZE := 0x04000000
BOARD_DTBOIMG_PARTITION_SIZE := 0x01000000

1
conf/fstab.gs201.in
View file

@ -10,6 +10,7 @@ product /product
vendor /vendor erofs ro wait,slotselect,avb=vbmeta_vendor,logical,first_stage_mount,readahead_size_kb=128
vendor_dlkm /vendor_dlkm erofs ro wait,slotselect,avb=vbmeta,logical,first_stage_mount
/dev/block/platform/14700000.ufs/by-name/boot /boot emmc defaults slotselect,avb=boot,first_stage_mount
/dev/block/platform/14700000.ufs/by-name/init_boot /init_boot emmc defaults slotselect,avb=init_boot,first_stage_mount
/dev/block/platform/14700000.ufs/by-name/efs /mnt/vendor/efs f2fs noatime,sync wait,check,formattable
/dev/block/platform/14700000.ufs/by-name/efs_backup /mnt/vendor/efs_backup f2fs noatime,sync wait,check,formattable
/dev/block/platform/14700000.ufs/by-name/modem_userdata /mnt/vendor/modem_userdata f2fs noatime,sync wait,check,formattable