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abootimg: Add init_boot image support

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Quote from [1]:

"For devices launching with Android 13, the generic ramdisk is removed
from the boot image and placed in a separate init_boot image.
This change leaves the boot image with only the GKI kernel."

While at it, update wrong error handling message when vendor_boot
cannot be loaded.

[1]: https://source.android.com/docs/core/architecture/partitions/generic-boot

Signed-off-by: Roman Stratiienko <r.stratiienko@gmail.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
This commit is contained in:
Roman Stratiienko 2024-05-23 07:06:07 +00:00 committed by Tom Rini
parent da3447d09f
commit 17b1656dcd
3 changed files with 38 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
boot/image-board.c
View File

@ -406,13 +406,20 @@ static int select_ramdisk(struct bootm_headers *images, const char *select, u8 a
if (IS_ENABLED(CONFIG_ANDROID_BOOT_IMAGE)) {
int ret;
if (IS_ENABLED(CONFIG_CMD_ABOOTIMG)) {
void *boot_img = map_sysmem(get_abootimg_addr(), 0);
ulong boot_img = get_abootimg_addr();
ulong init_boot_img = get_ainit_bootimg_addr();
void *vendor_boot_img = map_sysmem(get_avendor_bootimg_addr(), 0);
void *ramdisk_img;
ret = android_image_get_ramdisk(boot_img, vendor_boot_img,
if (init_boot_img == -1)
ramdisk_img = map_sysmem(boot_img, 0);
else
ramdisk_img = map_sysmem(init_boot_img, 0);
ret = android_image_get_ramdisk(ramdisk_img, vendor_boot_img,
rd_datap, rd_lenp);
unmap_sysmem(vendor_boot_img);
unmap_sysmem(boot_img);
unmap_sysmem(ramdisk_img);
} else {
void *ptr = map_sysmem(images->os.start, 0);

26
cmd/abootimg.c
View File

@ -14,6 +14,7 @@
/* Please use abootimg_addr() macro to obtain the boot image address */
static ulong _abootimg_addr = -1;
static ulong _ainit_bootimg_addr = -1;
static ulong _avendor_bootimg_addr = -1;
ulong get_abootimg_addr(void)
@ -21,6 +22,11 @@ ulong get_abootimg_addr(void)
return (_abootimg_addr == -1 ? image_load_addr : _abootimg_addr);
}
ulong get_ainit_bootimg_addr(void)
{
return _ainit_bootimg_addr;
}
ulong get_avendor_bootimg_addr(void)
{
return _avendor_bootimg_addr;
@ -179,7 +185,7 @@ static int do_abootimg_addr(struct cmd_tbl *cmdtp, int flag, int argc,
char *endp;
ulong img_addr;
if (argc < 2 || argc > 3)
if (argc < 2 || argc > 4)
return CMD_RET_USAGE;
img_addr = hextoul(argv[1], &endp);
@ -190,16 +196,26 @@ static int do_abootimg_addr(struct cmd_tbl *cmdtp, int flag, int argc,
_abootimg_addr = img_addr;
if (argc == 3) {
if (argc > 2) {
img_addr = simple_strtoul(argv[2], &endp, 16);
if (*endp != '\0') {
printf("Error: Wrong vendor image address\n");
printf("Error: Wrong vendor_boot image address\n");
return CMD_RET_FAILURE;
}
_avendor_bootimg_addr = img_addr;
}
if (argc == 4) {
img_addr = simple_strtoul(argv[3], &endp, 16);
if (*endp != '\0') {
printf("Error: Wrong init_boot image address\n");
return CMD_RET_FAILURE;
}
_ainit_bootimg_addr = img_addr;
}
return CMD_RET_SUCCESS;
}
@ -243,7 +259,7 @@ static int do_abootimg_dump(struct cmd_tbl *cmdtp, int flag, int argc,
}
static struct cmd_tbl cmd_abootimg_sub[] = {
U_BOOT_CMD_MKENT(addr, 3, 1, do_abootimg_addr, "", ""),
U_BOOT_CMD_MKENT(addr, 4, 1, do_abootimg_addr, "", ""),
U_BOOT_CMD_MKENT(dump, 2, 1, do_abootimg_dump, "", ""),
U_BOOT_CMD_MKENT(get, 5, 1, do_abootimg_get, "", ""),
};
@ -271,7 +287,7 @@ static int do_abootimg(struct cmd_tbl *cmdtp, int flag, int argc,
U_BOOT_CMD(
abootimg, CONFIG_SYS_MAXARGS, 0, do_abootimg,
"manipulate Android Boot Image",
"addr <boot_img_addr> [<vendor_boot_img_addr>]>\n"
"addr <boot_img_addr> [<vendor_boot_img_addr> [<init_boot_img_addr>]]\n"
" - set the address in RAM where boot image is located\n"
" ($loadaddr is used by default)\n"
"abootimg dump dtb\n"

7
include/image.h
View File

@ -1970,6 +1970,13 @@ bool is_android_vendor_boot_image_header(const void *vendor_boot_img);
*/
ulong get_abootimg_addr(void);
/**
* get_ainit_bootimg_addr() - Get Android init boot image address
*
* Return: Android init boot image address
*/
ulong get_ainit_bootimg_addr(void);
/**
* get_avendor_bootimg_addr() - Get Android vendor boot image address
*