Introduce vendor boot image for version 3 and 4 of boot image header. The vendor boot image will hold extra information about kernel, dtb and ramdisk.
This is done to prepare for boot image version 3 and 4 support.
Signed-off-by: Safae Ouajih souajih@baylibre.com --- boot/bootm.c | 8 +++---- boot/image-android.c | 54 ++++++++++++++++++++++++++++---------------- boot/image-board.c | 3 +-- boot/image-fdt.c | 3 ++- cmd/abootimg.c | 4 ++-- include/image.h | 48 ++++++++++++++++++++++++++++++--------- 6 files changed, 81 insertions(+), 39 deletions(-)
diff --git a/boot/bootm.c b/boot/bootm.c index 15fce8ad95..a58e6f391e 100644 --- a/boot/bootm.c +++ b/boot/bootm.c @@ -182,11 +182,11 @@ static int bootm_find_os(struct cmd_tbl *cmdtp, int flag, int argc, #ifdef CONFIG_ANDROID_BOOT_IMAGE case IMAGE_FORMAT_ANDROID: images.os.type = IH_TYPE_KERNEL; - images.os.comp = android_image_get_kcomp(os_hdr); + images.os.comp = android_image_get_kcomp(os_hdr, NULL); images.os.os = IH_OS_LINUX;
- images.os.end = android_image_get_end(os_hdr); - images.os.load = android_image_get_kload(os_hdr); + images.os.end = android_image_get_end(os_hdr, NULL); + images.os.load = android_image_get_kload(os_hdr, NULL); images.ep = images.os.load; ep_found = true; break; @@ -965,7 +965,7 @@ static const void *boot_get_kernel(struct cmd_tbl *cmdtp, int flag, int argc, #ifdef CONFIG_ANDROID_BOOT_IMAGE case IMAGE_FORMAT_ANDROID: printf("## Booting Android Image at 0x%08lx ...\n", img_addr); - if (android_image_get_kernel(buf, images->verify, + if (android_image_get_kernel(buf, NULL, images->verify, os_data, os_len)) return NULL; break; diff --git a/boot/image-android.c b/boot/image-android.c index 748fd212ae..f16eebff49 100644 --- a/boot/image-android.c +++ b/boot/image-android.c @@ -66,7 +66,8 @@ static void android_boot_image_v0_v1_v2_parse_hdr(const struct andr_boot_img_hdr data->boot_img_total_size = end - (ulong)hdr; }
-bool android_image_get_data(const void *boot_hdr, struct andr_image_data *data) +bool android_image_get_data(const void *boot_hdr, const void *vendor_boot_hdr, + struct andr_image_data *data) { if (!boot_hdr || !data) { printf("boot_hdr or data params can't be NULL\n"); @@ -114,8 +115,10 @@ static ulong android_image_get_kernel_addr(struct andr_image_data *img_data)
/** * android_image_get_kernel() - processes kernel part of Android boot images - * @hdr: Pointer to image header, which is at the start + * @hdr: Pointer to boot image header, which is at the start * of the image. + * @vendor_boot_img: Pointer to vendor boot image header, which is at the + * start of the image. * @verify: Checksum verification flag. Currently unimplemented. * @os_data: Pointer to a ulong variable, will hold os data start * address. @@ -127,14 +130,15 @@ static ulong android_image_get_kernel_addr(struct andr_image_data *img_data) * Return: Zero, os start address and length on success, * otherwise on failure. */ -int android_image_get_kernel(const struct andr_boot_img_hdr_v0 *hdr, int verify, +int android_image_get_kernel(const struct andr_boot_img_hdr_v0 *hdr, + const void *vendor_boot_img, int verify, ulong *os_data, ulong *os_len) { struct andr_image_data img_data = {0}; u32 kernel_addr; const struct legacy_img_hdr *ihdr;
- if (!android_image_get_data(hdr, &img_data)) + if (!android_image_get_data(hdr, vendor_boot_img, &img_data)) return -EINVAL;
kernel_addr = android_image_get_kernel_addr(&img_data); @@ -201,11 +205,12 @@ bool is_android_boot_image_header(const struct andr_boot_img_hdr_v0 *hdr) return !memcmp(ANDR_BOOT_MAGIC, hdr, ANDR_BOOT_MAGIC_SIZE); }
-ulong android_image_get_end(const struct andr_boot_img_hdr_v0 *hdr) +ulong android_image_get_end(const struct andr_boot_img_hdr_v0 *hdr, + const void *vendor_boot_img) { struct andr_image_data img_data;
- if (!android_image_get_data(hdr, &img_data)) + if (!android_image_get_data(hdr, vendor_boot_img, &img_data)) return -EINVAL;
if (img_data.header_version > 2) @@ -214,22 +219,24 @@ ulong android_image_get_end(const struct andr_boot_img_hdr_v0 *hdr) return img_data.boot_img_total_size; }
-ulong android_image_get_kload(const struct andr_boot_img_hdr_v0 *hdr) +ulong android_image_get_kload(const struct andr_boot_img_hdr_v0 *hdr, + const void *vendor_boot_img) { struct andr_image_data img_data;
- if (!android_image_get_data(hdr, &img_data)) + if (!android_image_get_data(hdr, vendor_boot_img, &img_data)) return -EINVAL;
return android_image_get_kernel_addr(&img_data); }
-ulong android_image_get_kcomp(const struct andr_boot_img_hdr_v0 *hdr) +ulong android_image_get_kcomp(const struct andr_boot_img_hdr_v0 *hdr, + const void *vendor_boot_img) { struct andr_image_data img_data; const void *p;
- if (!android_image_get_data(hdr, &img_data)) + if (!android_image_get_data(hdr, vendor_boot_img, &img_data)) return -EINVAL;
p = (const void *)img_data.kernel_ptr; @@ -242,11 +249,11 @@ ulong android_image_get_kcomp(const struct andr_boot_img_hdr_v0 *hdr) }
int android_image_get_ramdisk(const struct andr_boot_img_hdr_v0 *hdr, - ulong *rd_data, ulong *rd_len) + const void *vendor_boot_img, ulong *rd_data, ulong *rd_len) { struct andr_image_data img_data = {0};
- if (!android_image_get_data(hdr, &img_data)) + if (!android_image_get_data(hdr, vendor_boot_img, &img_data)) return -EINVAL;
if (!img_data.ramdisk_size) { @@ -268,7 +275,7 @@ int android_image_get_second(const struct andr_boot_img_hdr_v0 *hdr, { struct andr_image_data img_data;
- if (!android_image_get_data(hdr, &img_data)) + if (!android_image_get_data(hdr, NULL, &img_data)) return -EINVAL;
if (!img_data.second_size) { @@ -348,11 +355,12 @@ exit: /** * android_image_get_dtb_img_addr() - Get the address of DTB area in boot image. * @hdr_addr: Boot image header address + * @vhdr_addr: Vendor Boot image header address * @addr: Will contain the address of DTB area in boot image * * Return: true on success or false on fail. */ -static bool android_image_get_dtb_img_addr(ulong hdr_addr, ulong *addr) +static bool android_image_get_dtb_img_addr(ulong hdr_addr, ulong vhdr_addr, ulong *addr) { const struct andr_boot_img_hdr_v0 *hdr; ulong dtb_img_addr; @@ -395,6 +403,7 @@ exit: /** * android_image_get_dtb_by_index() - Get address and size of blob in DTB area. * @hdr_addr: Boot image header address + * @vendor_boot_img: Pointer to vendor boot image header, which is at the start of the image. * @index: Index of desired DTB in DTB area (starting from 0) * @addr: If not NULL, will contain address to specified DTB * @size: If not NULL, will contain size of specified DTB @@ -404,17 +413,24 @@ exit: * * Return: true on success or false on error. */ -bool android_image_get_dtb_by_index(ulong hdr_addr, u32 index, ulong *addr, - u32 *size) +bool android_image_get_dtb_by_index(ulong hdr_addr, ulong vendor_boot_img, + u32 index, ulong *addr, u32 *size) { struct andr_image_data img_data; const struct andr_boot_img_hdr_v0 *hdr; + const struct andr_vnd_boot_img_hdr *vhdr;
hdr = map_sysmem(hdr_addr, sizeof(*hdr)); - if (!android_image_get_data(hdr, &img_data)) { + if (vendor_boot_img != -1) + vhdr = map_sysmem(vendor_boot_img, sizeof(*vhdr)); + if (!android_image_get_data(hdr, vhdr, &img_data)) { + if (vendor_boot_img != -1) + unmap_sysmem(vhdr); unmap_sysmem(hdr); return false; } + if (vendor_boot_img != -1) + unmap_sysmem(vhdr); unmap_sysmem(hdr);
ulong dtb_img_addr; /* address of DTB part in boot image */ @@ -422,7 +438,7 @@ bool android_image_get_dtb_by_index(ulong hdr_addr, u32 index, ulong *addr, ulong dtb_addr; /* address of DTB blob with specified index */ u32 i; /* index iterator */
- android_image_get_dtb_img_addr(hdr_addr, &dtb_img_addr); + android_image_get_dtb_img_addr(hdr_addr, vendor_boot_img, &dtb_img_addr); /* Check if DTB area of boot image is in DTBO format */ if (android_dt_check_header(dtb_img_addr)) { return android_dt_get_fdt_by_index(dtb_img_addr, index, addr, @@ -578,7 +594,7 @@ bool android_image_print_dtb_contents(ulong hdr_addr) ulong dtb_addr; /* address of DTB blob with specified index */ u32 i; /* index iterator */
- res = android_image_get_dtb_img_addr(hdr_addr, &dtb_img_addr); + res = android_image_get_dtb_img_addr(hdr_addr, 0, &dtb_img_addr); if (!res) return false;
diff --git a/boot/image-board.c b/boot/image-board.c index 9295b6d0c8..b6c9bbe8f5 100644 --- a/boot/image-board.c +++ b/boot/image-board.c @@ -428,8 +428,7 @@ static int select_ramdisk(struct bootm_headers *images, const char *select, u8 a if (IS_ENABLED(CONFIG_ANDROID_BOOT_IMAGE)) { void *ptr = map_sysmem(images->os.start, 0); int ret; - - ret = android_image_get_ramdisk(ptr, rd_datap, rd_lenp); + ret = android_image_get_ramdisk(ptr, NULL, rd_datap, rd_lenp); unmap_sysmem(ptr); if (ret) return ret; diff --git a/boot/image-fdt.c b/boot/image-fdt.c index 1181cb60f0..f270d00a5f 100644 --- a/boot/image-fdt.c +++ b/boot/image-fdt.c @@ -536,7 +536,8 @@ int boot_get_fdt(int flag, int argc, char *const argv[], uint8_t arch, * Firstly check if this android boot image has dtb field. */ dtb_idx = (u32)env_get_ulong("adtb_idx", 10, 0); - if (android_image_get_dtb_by_index((ulong)hdr, dtb_idx, &fdt_addr, &fdt_size)) { + if (android_image_get_dtb_by_index((ulong)hdr, 0, + dtb_idx, &fdt_addr, &fdt_size)) { fdt_blob = (char *)map_sysmem(fdt_addr, 0); if (fdt_check_header(fdt_blob)) goto no_fdt; diff --git a/cmd/abootimg.c b/cmd/abootimg.c index f04a7c7c8e..4d6cf0fa3e 100644 --- a/cmd/abootimg.c +++ b/cmd/abootimg.c @@ -72,7 +72,7 @@ static int abootimg_get_dtb_load_addr(int argc, char *const argv[]) const struct andr_boot_img_hdr_v0 *hdr;
hdr = map_sysmem(abootimg_addr(), sizeof(*hdr)); - if (!android_image_get_data(hdr, &img_data)) { + if (!android_image_get_data(hdr, NULL, &img_data)) { unmap_sysmem(hdr); return CMD_RET_FAILURE; } @@ -119,7 +119,7 @@ static int abootimg_get_dtb_by_index(int argc, char *const argv[]) return CMD_RET_FAILURE; }
- if (!android_image_get_dtb_by_index(abootimg_addr(), num, + if (!android_image_get_dtb_by_index(abootimg_addr(), 0, num, &addr, &size)) { return CMD_RET_FAILURE; } diff --git a/include/image.h b/include/image.h index 4bf6c98ced..f84c03f08f 100644 --- a/include/image.h +++ b/include/image.h @@ -1736,16 +1736,19 @@ struct cipher_algo *image_get_cipher_algo(const char *full_name); struct andr_image_data;
/** - * android_image_get_data() - Parse Android boot image + * android_image_get_data() - Parse Android boot images * - * This is used to parse boot image header into andr_image_data - * generic structure. + * This is used to parse boot and vendor-boot header into + * andr_image_data generic structure. * * @boot_hdr: Pointer to boot image header + * @vendor_boot_hdr: Pointer to vendor boot image header * @data: Pointer to generic boot format structure * Return: true if succeeded, false otherwise */ -bool android_image_get_data(const void *boot_hdr, struct andr_image_data *data); +bool android_image_get_data(const void *boot_hdr, const void *vendor_boot_hdr, + struct andr_image_data *data); + struct andr_boot_img_hdr_v0;
/** @@ -1756,6 +1759,7 @@ struct andr_boot_img_hdr_v0; * * @hdr: Pointer to image header, which is at the start * of the image. + * @vendor_boot_img : Pointer to vendor boot image header * @verify: Checksum verification flag. Currently unimplemented. * @os_data: Pointer to a ulong variable, will hold os data start * address. @@ -1763,7 +1767,8 @@ struct andr_boot_img_hdr_v0; * Return: Zero, os start address and length on success, * otherwise on failure. */ -int android_image_get_kernel(const struct andr_boot_img_hdr_v0 *hdr, int verify, +int android_image_get_kernel(const struct andr_boot_img_hdr_v0 *hdr, + const void *vendor_boot_img, int verify, ulong *os_data, ulong *os_len);
/** @@ -1772,12 +1777,13 @@ int android_image_get_kernel(const struct andr_boot_img_hdr_v0 *hdr, int verify, * This extracts the load address of the ramdisk and its size * * @hdr: Pointer to image header + * @vendor_boot_img : Pointer to vendor boot image header * @rd_data: Pointer to a ulong variable, will hold ramdisk address * @rd_len: Pointer to a ulong variable, will hold ramdisk length * Return: 0 if succeeded, -1 if ramdisk size is 0 */ int android_image_get_ramdisk(const struct andr_boot_img_hdr_v0 *hdr, - ulong *rd_data, ulong *rd_len); + const void *vendor_boot_img, ulong *rd_data, ulong *rd_len);
/** * android_image_get_second() - Extracts the secondary bootloader address @@ -1793,8 +1799,22 @@ int android_image_get_ramdisk(const struct andr_boot_img_hdr_v0 *hdr, int android_image_get_second(const struct andr_boot_img_hdr_v0 *hdr, ulong *second_data, ulong *second_len); bool android_image_get_dtbo(ulong hdr_addr, ulong *addr, u32 *size); -bool android_image_get_dtb_by_index(ulong hdr_addr, u32 index, ulong *addr, - u32 *size); + +/** + * android_image_get_dtb_by_index() - Get address and size of blob in DTB area. + * @hdr_addr: Boot image header address + * @vendor_boot_img: Pointer to vendor boot image header, which is at the start of the image. + * @index: Index of desired DTB in DTB area (starting from 0) + * @addr: If not NULL, will contain address to specified DTB + * @size: If not NULL, will contain size of specified DTB + * + * Get the address and size of DTB blob by its index in DTB area of Android + * Boot Image in RAM. + * + * Return: true on success or false on error. + */ +bool android_image_get_dtb_by_index(ulong hdr_addr, ulong vendor_boot_img, + u32 index, ulong *addr, u32 *size);
/** * android_image_get_end() - Get the end of Android boot image @@ -1802,9 +1822,11 @@ bool android_image_get_dtb_by_index(ulong hdr_addr, u32 index, ulong *addr, * This returns the end address of Android boot image address * * @hdr: Pointer to image header + * @vendor_boot_img : Pointer to vendor boot image header * Return: The end address of Android boot image */ -ulong android_image_get_end(const struct andr_boot_img_hdr_v0 *hdr); +ulong android_image_get_end(const struct andr_boot_img_hdr_v0 *hdr, + const void *vendor_boot_img);
/** * android_image_get_kload() - Get the kernel load address @@ -1813,9 +1835,11 @@ ulong android_image_get_end(const struct andr_boot_img_hdr_v0 *hdr); * from the boot image header or the "kernel_addr_r" environment variable * * @hdr: Pointer to image header + * @vendor_boot_img : Pointer to vendor boot image header * Return: The kernel load address */ -ulong android_image_get_kload(const struct andr_boot_img_hdr_v0 *hdr); +ulong android_image_get_kload(const struct andr_boot_img_hdr_v0 *hdr, + const void *vendor_boot_img);
/** * android_image_get_kcomp() - Get kernel compression type @@ -1823,9 +1847,11 @@ ulong android_image_get_kload(const struct andr_boot_img_hdr_v0 *hdr); * This gets the kernel compression type from the boot image header * * @hdr: Pointer to image header + * @vendor_boot_img : Pointer to vendor boot image header * Return: Kernel compression type */ -ulong android_image_get_kcomp(const struct andr_boot_img_hdr_v0 *hdr); +ulong android_image_get_kcomp(const struct andr_boot_img_hdr_v0 *hdr, + const void *vendor_boot_img);
/** * android_print_contents() - Prints out the contents of the Android format image