X-Git-Url: http://git.openwrt.org/?p=openwrt%2Fopenwrt.git;a=blobdiff_plain;f=package%2Fboot%2Fkexec-tools%2Fpatches%2F001-arm-do-not-copy-magic-4-bytes-of-appended-DTB-in-zIm.patch;fp=package%2Fboot%2Fkexec-tools%2Fpatches%2F001-arm-do-not-copy-magic-4-bytes-of-appended-DTB-in-zIm.patch;h=0000000000000000000000000000000000000000;hp=82bdd4e7ed69511de60e5b0bba7b1fdb7d45b953;hb=7ce266767ca10e62b10c7b80389f3884760e8d7e;hpb=b3702fda8f35f091b919e96e283a61634c769fd6 diff --git a/package/boot/kexec-tools/patches/001-arm-do-not-copy-magic-4-bytes-of-appended-DTB-in-zIm.patch b/package/boot/kexec-tools/patches/001-arm-do-not-copy-magic-4-bytes-of-appended-DTB-in-zIm.patch deleted file mode 100644 index 82bdd4e7ed..0000000000 --- a/package/boot/kexec-tools/patches/001-arm-do-not-copy-magic-4-bytes-of-appended-DTB-in-zIm.patch +++ /dev/null @@ -1,52 +0,0 @@ -From 9817ec81968a5eec7863902833fb77680544eae4 Mon Sep 17 00:00:00 2001 -From: Alexander Egorenkov -Date: Mon, 12 Apr 2021 13:18:05 +0200 -Subject: [PATCH 1/1] arm: do not copy magic 4 bytes of appended DTB in zImage - -If the passed zImage happens to have a DTB appended, then the magic 4 bytes -of the DTB are copied together with the kernel image. This leads to -failed kexec boots because the decompressor finds the aforementioned -DTB magic and falsely tries to replace the DTB passed in the register r2 -with the non-existent appended one. - -Signed-off-by: Alexander Egorenkov -Signed-off-by: Simon Horman ---- - kexec/arch/arm/kexec-zImage-arm.c | 12 +++++++++++- - 1 file changed, 11 insertions(+), 1 deletion(-) - ---- a/kexec/arch/arm/kexec-zImage-arm.c -+++ b/kexec/arch/arm/kexec-zImage-arm.c -@@ -382,6 +382,7 @@ int zImage_arm_load(int argc, char **arg - unsigned int atag_offset = 0x1000; /* 4k offset from memory start */ - unsigned int extra_size = 0x8000; /* TEXT_OFFSET */ - const struct zimage_tag *tag; -+ size_t kernel_buf_size; - size_t kernel_mem_size; - const char *command_line; - char *modified_cmdline = NULL; -@@ -538,6 +539,15 @@ int zImage_arm_load(int argc, char **arg - } - - /* -+ * Save the length of the compressed kernel image w/o the appended DTB. -+ * This will be required later on when the kernel image contained -+ * in the zImage will be loaded into a kernel memory segment. -+ * And we want to load ONLY the compressed kernel image from the zImage -+ * and discard the appended DTB. -+ */ -+ kernel_buf_size = len; -+ -+ /* - * Always extend the zImage by four bytes to ensure that an appended - * DTB image always sees an initialised value after _edata. - */ -@@ -759,7 +769,7 @@ int zImage_arm_load(int argc, char **arg - add_segment(info, dtb_buf, dtb_length, dtb_offset, dtb_length); - } - -- add_segment(info, buf, len, kernel_base, kernel_mem_size); -+ add_segment(info, buf, kernel_buf_size, kernel_base, kernel_mem_size); - - info->entry = (void*)kernel_base; -