android: boot: support boot image header version 3 and 4

Enable the support for boot image header version 3 and 4
using abootimg command.

In order to use version 3 or 4:

1- Vendor boot image address should be given to abootimg cmd.

	abootimg addr $1 $vendor_boot_load_addr

2- "ramdisk_addr_r" env variable (ramdisk address) should be set to host
the ramdisk : generic ramdisk + vendor ramdisk

Replace "struct andr_boot_img_hdr_v0*" by "void *" in
some functions since v3 and v4 are now supported as well.

Signed-off-by: Safae Ouajih <souajih@baylibre.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Tested-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>

diff --git a/boot/bootm.c b/boot/bootm.c
index 28a8fc3..4144ff3 100644 (file)
--- a/boot/bootm.c
+++ b/boot/bootm.c
@@ -113,6 +113,10 @@ static int bootm_find_os(struct cmd_tbl *cmdtp, int flag, int argc,
                         char *const argv[])
 {
        const void *os_hdr;
+#ifdef CONFIG_ANDROID_BOOT_IMAGE
+       const void *vendor_boot_img;
+       const void *boot_img;
+#endif
        bool ep_found = false;
        int ret;
 
@@ -181,14 +185,23 @@ static int bootm_find_os(struct cmd_tbl *cmdtp, int flag, int argc,
 #endif
 #ifdef CONFIG_ANDROID_BOOT_IMAGE
        case IMAGE_FORMAT_ANDROID:
+               boot_img = os_hdr;
+               vendor_boot_img = NULL;
+               if (IS_ENABLED(CONFIG_CMD_ABOOTIMG)) {
+                       boot_img = map_sysmem(get_abootimg_addr(), 0);
+                       vendor_boot_img = map_sysmem(get_avendor_bootimg_addr(), 0);
+               }
                images.os.type = IH_TYPE_KERNEL;
-               images.os.comp = android_image_get_kcomp(os_hdr, NULL);
+               images.os.comp = android_image_get_kcomp(boot_img, vendor_boot_img);
                images.os.os = IH_OS_LINUX;
-
-               images.os.end = android_image_get_end(os_hdr, NULL);
-               images.os.load = android_image_get_kload(os_hdr, NULL);
+               images.os.end = android_image_get_end(boot_img, vendor_boot_img);
+               images.os.load = android_image_get_kload(boot_img, vendor_boot_img);
                images.ep = images.os.load;
                ep_found = true;
+               if (IS_ENABLED(CONFIG_CMD_ABOOTIMG)) {
+                       unmap_sysmem(vendor_boot_img);
+                       unmap_sysmem(boot_img);
+               }
                break;
 #endif
        default:
@@ -889,6 +902,10 @@ static const void *boot_get_kernel(struct cmd_tbl *cmdtp, int flag, int argc,
        int             os_noffset;
 #endif
 
+#ifdef CONFIG_ANDROID_BOOT_IMAGE
+       const void *boot_img;
+       const void *vendor_boot_img;
+#endif
        img_addr = genimg_get_kernel_addr_fit(argc < 1 ? NULL : argv[0],
                                              &fit_uname_config,
                                              &fit_uname_kernel);
@@ -964,10 +981,20 @@ static const void *boot_get_kernel(struct cmd_tbl *cmdtp, int flag, int argc,
 #endif
 #ifdef CONFIG_ANDROID_BOOT_IMAGE
        case IMAGE_FORMAT_ANDROID:
+               boot_img = buf;
+               vendor_boot_img = NULL;
+               if (IS_ENABLED(CONFIG_CMD_ABOOTIMG)) {
+                       boot_img = map_sysmem(get_abootimg_addr(), 0);
+                       vendor_boot_img = map_sysmem(get_avendor_bootimg_addr(), 0);
+               }
                printf("## Booting Android Image at 0x%08lx ...\n", img_addr);
-               if (android_image_get_kernel(buf, NULL, images->verify,
+               if (android_image_get_kernel(boot_img, vendor_boot_img, images->verify,
                                             os_data, os_len))
                        return NULL;
+               if (IS_ENABLED(CONFIG_CMD_ABOOTIMG)) {
+                       unmap_sysmem(vendor_boot_img);
+                       unmap_sysmem(boot_img);
+               }
                break;
 #endif
        default:

diff --git a/boot/image-android.c b/boot/image-android.c
index 6be439e..fb29ff4 100644 (file)
--- a/boot/image-android.c
+++ b/boot/image-android.c
@@ -201,7 +201,7 @@ 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 android_image_get_kernel(const void *hdr,
                             const void *vendor_boot_img, int verify,
                             ulong *os_data, ulong *os_len)
 {
@@ -286,7 +286,7 @@ bool is_android_vendor_boot_image_header(const void *vendor_boot_img)
        return !memcmp(VENDOR_BOOT_MAGIC, vendor_boot_img, ANDR_VENDOR_BOOT_MAGIC_SIZE);
 }
 
-bool is_android_boot_image_header(const struct andr_boot_img_hdr_v0 *hdr)
+bool is_android_boot_image_header(const void *hdr)
 {
        return !memcmp(ANDR_BOOT_MAGIC, hdr, ANDR_BOOT_MAGIC_SIZE);
 }
@@ -305,7 +305,7 @@ 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 void *hdr,
                              const void *vendor_boot_img)
 {
        struct andr_image_data img_data;
@@ -316,7 +316,7 @@ ulong android_image_get_kload(const struct andr_boot_img_hdr_v0 *hdr,
        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 void *hdr,
                              const void *vendor_boot_img)
 {
        struct andr_image_data img_data;
@@ -364,14 +364,18 @@ int android_image_get_ramdisk(const void *hdr, const void *vendor_boot_img,
        return 0;
 }
 
-int android_image_get_second(const struct andr_boot_img_hdr_v0 *hdr,
-                            ulong *second_data, ulong *second_len)
+int android_image_get_second(const void *hdr, ulong *second_data, ulong *second_len)
 {
        struct andr_image_data img_data;
 
        if (!android_image_get_data(hdr, NULL, &img_data))
                return -EINVAL;
 
+       if (img_data.header_version > 2) {
+               printf("Second stage bootloader is only supported for boot image version <= 2\n");
+               return -EOPNOTSUPP;
+       }
+
        if (!img_data.second_size) {
                *second_data = *second_len = 0;
                return -1;

diff --git a/boot/image-board.c b/boot/image-board.c
index 2d73c76..7dd0c32 100644 (file)
--- a/boot/image-board.c
+++ b/boot/image-board.c
@@ -426,10 +426,22 @@ static int select_ramdisk(struct bootm_headers *images, const char *select, u8 a
                break;
        case IMAGE_FORMAT_ANDROID:
                if (IS_ENABLED(CONFIG_ANDROID_BOOT_IMAGE)) {
-                       void *ptr = map_sysmem(images->os.start, 0);
                        int ret;
-                       ret = android_image_get_ramdisk(ptr, NULL, rd_datap, rd_lenp);
-                       unmap_sysmem(ptr);
+                       if (IS_ENABLED(CONFIG_CMD_ABOOTIMG)) {
+                               void *boot_img = map_sysmem(get_abootimg_addr(), 0);
+                               void *vendor_boot_img = map_sysmem(get_avendor_bootimg_addr(), 0);
+
+                               ret = android_image_get_ramdisk(boot_img, vendor_boot_img,
+                                                               rd_datap, rd_lenp);
+                               unmap_sysmem(vendor_boot_img);
+                               unmap_sysmem(boot_img);
+                       } else {
+                               void *ptr = map_sysmem(images->os.start, 0);
+
+                               ret = android_image_get_ramdisk(ptr, NULL, rd_datap, rd_lenp);
+                               unmap_sysmem(ptr);
+                       }
+
                        if (ret)
                                return ret;
                        done = true;

diff --git a/boot/image-fdt.c b/boot/image-fdt.c
index d639f37..f10200f 100644 (file)
--- a/boot/image-fdt.c
+++ b/boot/image-fdt.c
@@ -529,7 +529,7 @@ int boot_get_fdt(int flag, int argc, char *const argv[], uint8_t arch,
                }
 #ifdef CONFIG_ANDROID_BOOT_IMAGE
        } else if (genimg_get_format(buf) == IMAGE_FORMAT_ANDROID) {
-               struct andr_boot_img_hdr_v0 *hdr = buf;
+               void *hdr = buf;
                ulong           fdt_data, fdt_len;
                u32                     fdt_size, dtb_idx;
                /*

diff --git a/cmd/abootimg.c b/cmd/abootimg.c
index 4d6cf0f..2653b55 100644 (file)
--- a/cmd/abootimg.c
+++ b/cmd/abootimg.c
@@ -17,6 +17,16 @@
 static ulong _abootimg_addr = -1;
 static ulong _avendor_bootimg_addr = -1;
 
+ulong get_abootimg_addr(void)
+{
+       return (_abootimg_addr == -1 ? image_load_addr : _abootimg_addr);
+}
+
+ulong get_avendor_bootimg_addr(void)
+{
+       return _avendor_bootimg_addr;
+}
+
 static int abootimg_get_ver(int argc, char *const argv[])
 {
        const struct andr_boot_img_hdr_v0 *hdr;
@@ -70,12 +80,21 @@ static int abootimg_get_dtb_load_addr(int argc, char *const argv[])
                return CMD_RET_USAGE;
        struct andr_image_data img_data = {0};
        const struct andr_boot_img_hdr_v0 *hdr;
+       const struct andr_vnd_boot_img_hdr *vhdr;
 
        hdr = map_sysmem(abootimg_addr(), sizeof(*hdr));
-       if (!android_image_get_data(hdr, NULL, &img_data)) {
+       if (get_avendor_bootimg_addr() != -1)
+               vhdr = map_sysmem(get_avendor_bootimg_addr(), sizeof(*vhdr));
+
+       if (!android_image_get_data(hdr, vhdr, &img_data)) {
+               if (get_avendor_bootimg_addr() != -1)
+                       unmap_sysmem(vhdr);
                unmap_sysmem(hdr);
                return CMD_RET_FAILURE;
        }
+
+       if (get_avendor_bootimg_addr() != -1)
+               unmap_sysmem(vhdr);
        unmap_sysmem(hdr);
 
        if (img_data.header_version < 2) {
@@ -119,7 +138,8 @@ 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(), 0, num,
+       if (!android_image_get_dtb_by_index(abootimg_addr(),
+                                           get_avendor_bootimg_addr(), num,
                                            &addr, &size)) {
                return CMD_RET_FAILURE;
        }

diff --git a/include/image.h b/include/image.h
index c4d9b1c..456197d 100644 (file)
--- a/include/image.h
+++ b/include/image.h
@@ -1767,7 +1767,7 @@ 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 android_image_get_kernel(const void *hdr,
                             const void *vendor_boot_img, int verify,
                             ulong *os_data, ulong *os_len);
 
@@ -1796,8 +1796,7 @@ int android_image_get_ramdisk(const void *hdr, const void *vendor_boot_img,
  * @second_len : Pointer to a ulong variable, will hold secondary bootloader length
  * Return: 0 if succeeded, -1 if secondary bootloader size is 0
  */
-int android_image_get_second(const struct andr_boot_img_hdr_v0 *hdr,
-                            ulong *second_data, ulong *second_len);
+int android_image_get_second(const void *hdr, ulong *second_data, ulong *second_len);
 bool android_image_get_dtbo(ulong hdr_addr, ulong *addr, u32 *size);
 
 /**
@@ -1838,7 +1837,7 @@ ulong android_image_get_end(const struct andr_boot_img_hdr_v0 *hdr,
  * @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 void *hdr,
                              const void *vendor_boot_img);
 
 /**
@@ -1850,7 +1849,7 @@ ulong android_image_get_kload(const struct andr_boot_img_hdr_v0 *hdr,
  * @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 void *hdr,
                              const void *vendor_boot_img);
 
 /**
@@ -1874,7 +1873,7 @@ bool android_image_print_dtb_contents(ulong hdr_addr);
  * @hdr: Pointer to boot image
  * Return: non-zero if the magic is correct, zero otherwise
  */
-bool is_android_boot_image_header(const struct andr_boot_img_hdr_v0 *hdr);
+bool is_android_boot_image_header(const void *hdr);
 
 /**
  * is_android_vendor_boot_image_header() - Check the magic of vendor boot image
@@ -1888,6 +1887,20 @@ bool is_android_boot_image_header(const struct andr_boot_img_hdr_v0 *hdr);
 bool is_android_vendor_boot_image_header(const void *vendor_boot_img);
 
 /**
+ * get_abootimg_addr() - Get Android boot image address
+ *
+ * Return: Android boot image address
+ */
+ulong get_abootimg_addr(void);
+
+/**
+ * get_avendor_bootimg_addr() - Get Android vendor boot image address
+ *
+ * Return: Android vendor boot image address
+ */
+ulong get_avendor_bootimg_addr(void);
+
+/**
  * board_fit_config_name_match() - Check for a matching board name
  *
  * This is used when SPL loads a FIT containing multiple device tree files