Update android bootmeth to support non-A/B image. Enable AB support only when ANDROID_AB is enabled.
Reviewed-by: Mattijs Korpershoek mkorpershoek@baylibre.com Signed-off-by: Guillaume La Roque glaroque@baylibre.com --- boot/Kconfig | 1 - boot/bootmeth_android.c | 51 +++++++++++++++++++++++++++++++++------- configs/am62x_a53_android.config | 1 + configs/sandbox_defconfig | 1 + 4 files changed, 44 insertions(+), 10 deletions(-)
diff --git a/boot/Kconfig b/boot/Kconfig index 7dd30a030e39..661e89ca05b2 100644 --- a/boot/Kconfig +++ b/boot/Kconfig @@ -500,7 +500,6 @@ config BOOTMETH_ANDROID bool "Bootdev support for Android" depends on X86 || ARM || SANDBOX depends on CMDLINE - select ANDROID_AB select ANDROID_BOOT_IMAGE select CMD_BCB imply CMD_FASTBOOT diff --git a/boot/bootmeth_android.c b/boot/bootmeth_android.c index 2e7f85e4a708..2aac32331d3c 100644 --- a/boot/bootmeth_android.c +++ b/boot/bootmeth_android.c @@ -29,6 +29,7 @@ #define BCB_PART_NAME "misc" #define BOOT_PART_NAME "boot" #define VENDOR_BOOT_PART_NAME "vendor_boot" +#define SLOT_LEN 2
/** * struct android_priv - Private data @@ -42,7 +43,7 @@ */ struct android_priv { enum android_boot_mode boot_mode; - char slot[2]; + char *slot; u32 header_version; };
@@ -71,7 +72,11 @@ static int scan_boot_part(struct udevice *blk, struct android_priv *priv) char *buf; int ret;
- sprintf(partname, BOOT_PART_NAME "_%s", priv->slot); + if (priv->slot) + sprintf(partname, BOOT_PART_NAME "_%s", priv->slot); + else + sprintf(partname, BOOT_PART_NAME); + ret = part_get_info_by_name(desc, partname, &partition); if (ret < 0) return log_msg_ret("part info", ret); @@ -108,7 +113,11 @@ static int scan_vendor_boot_part(struct udevice *blk, struct android_priv *priv) char *buf; int ret;
- sprintf(partname, VENDOR_BOOT_PART_NAME "_%s", priv->slot); + if (priv->slot) + sprintf(partname, VENDOR_BOOT_PART_NAME "_%s", priv->slot); + else + sprintf(partname, VENDOR_BOOT_PART_NAME); + ret = part_get_info_by_name(desc, partname, &partition); if (ret < 0) return log_msg_ret("part info", ret); @@ -142,6 +151,11 @@ static int android_read_slot_from_bcb(struct bootflow *bflow, bool decrement) char slot_suffix[3]; int ret;
+ if (!CONFIG_IS_ENABLED(ANDROID_AB)) { + priv->slot = NULL; + return 0; + } + ret = part_get_info_by_name(desc, BCB_PART_NAME, &misc); if (ret < 0) return log_msg_ret("part", ret); @@ -150,6 +164,7 @@ static int android_read_slot_from_bcb(struct bootflow *bflow, bool decrement) if (ret < 0) return log_msg_ret("slot", ret);
+ priv->slot = malloc(SLOT_LEN); priv->slot[0] = BOOT_SLOT_NAME(ret); priv->slot[1] = '\0';
@@ -274,7 +289,7 @@ static int android_read_bootflow(struct udevice *dev, struct bootflow *bflow) configure_serialno(bflow); configure_bootloader_version(bflow);
- if (priv->boot_mode == ANDROID_BOOT_MODE_NORMAL) { + if (priv->boot_mode == ANDROID_BOOT_MODE_NORMAL && priv->slot) { ret = bootflow_cmdline_set_arg(bflow, "androidboot.force_normal_boot", "1", false); if (ret < 0) { @@ -323,14 +338,28 @@ static int read_slotted_partition(struct blk_desc *desc, const char *const name, { struct disk_partition partition; char partname[PART_NAME_LEN]; + size_t partname_len; int ret; u32 n;
- /* Ensure name fits in partname it should be: <name>_<slot>\0 */ - if (strlen(name) > (PART_NAME_LEN - 2 - 1)) + /* + * Ensure name fits in partname. + * For A/B, it should be <name>_<slot>\0 + * For non A/B, it should be <name>\0 + */ + if (CONFIG_IS_ENABLED(ANDROID_AB)) + partname_len = PART_NAME_LEN - 2 - 1; + else + partname_len = PART_NAME_LEN - 1; + + if (strlen(name) > partname_len) return log_msg_ret("name too long", -EINVAL);
- sprintf(partname, "%s_%s", name, slot); + if (slot) + sprintf(partname, "%s_%s", name, slot); + else + sprintf(partname, "%s", name); + ret = part_get_info_by_name(desc, partname, &partition); if (ret < 0) return log_msg_ret("part", ret); @@ -382,7 +411,7 @@ static int run_avb_verification(struct bootflow *bflow) AvbSlotVerifyData *out_data; enum avb_boot_state boot_state; char *extra_args; - char slot_suffix[3]; + char slot_suffix[3] = ""; bool unlocked = false; int ret;
@@ -390,7 +419,8 @@ static int run_avb_verification(struct bootflow *bflow) if (!avb_ops) return log_msg_ret("avb ops", -ENOMEM);
- sprintf(slot_suffix, "_%s", priv->slot); + if (priv->slot) + sprintf(slot_suffix, "_%s", priv->slot);
ret = avb_ops->read_is_device_unlocked(avb_ops, &unlocked); if (ret != AVB_IO_RESULT_OK) @@ -480,6 +510,9 @@ static int boot_android_normal(struct bootflow *bflow) } set_abootimg_addr(loadaddr);
+ if (priv->slot) + free(priv->slot); + ret = bootm_boot_start(loadaddr, bflow->cmdline);
return log_msg_ret("boot", ret); diff --git a/configs/am62x_a53_android.config b/configs/am62x_a53_android.config index adbe2b8e126f..2aca51e3a107 100644 --- a/configs/am62x_a53_android.config +++ b/configs/am62x_a53_android.config @@ -11,6 +11,7 @@ CONFIG_RANDOM_UUID=y # Needed for FASTBOOT_CMD_OEM_FORMAT CONFIG_FASTBOOT_CMD_OEM_FORMAT=y # Enable Android boot flow CONFIG_BOOTMETH_ANDROID=y +CONFIG_ANDROID_AB=y CONFIG_SYS_BOOTM_LEN=0x4000000 CONFIG_SYS_MALLOC_LEN=0x08000000 CONFIG_AVB_VERIFY=y diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig index d111858082d5..6b8dedf20712 100644 --- a/configs/sandbox_defconfig +++ b/configs/sandbox_defconfig @@ -50,6 +50,7 @@ CONFIG_LOG_DEFAULT_LEVEL=6 CONFIG_LOGF_FUNC=y CONFIG_DISPLAY_BOARDINFO_LATE=y CONFIG_STACKPROTECTOR=y +CONFIG_ANDROID_AB=y CONFIG_CMD_CPU=y CONFIG_CMD_LICENSE=y CONFIG_CMD_SMBIOS=y