| /* |
| * ARM64 kexec binary image support. |
| */ |
| |
| #define _GNU_SOURCE |
| |
| #include "kexec-arm64.h" |
| #include <limits.h> |
| |
| int image_arm64_probe(const char *kernel_buf, off_t kernel_size) |
| { |
| const struct arm64_image_header *h; |
| |
| if (kernel_size < sizeof(struct arm64_image_header)) { |
| dbgprintf("%s: No arm64 image header.\n", __func__); |
| return -1; |
| } |
| |
| h = (const struct arm64_image_header *)(kernel_buf); |
| |
| if (!arm64_header_check_magic(h)) { |
| dbgprintf("%s: Bad arm64 image header.\n", __func__); |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| int image_arm64_load(int argc, char **argv, const char *kernel_buf, |
| off_t kernel_size, struct kexec_info *info) |
| { |
| const struct arm64_image_header *header; |
| unsigned long kernel_segment; |
| int result; |
| |
| header = (const struct arm64_image_header *)(kernel_buf); |
| |
| if (arm64_process_image_header(header)) |
| return EFAILED; |
| |
| kernel_segment = arm64_locate_kernel_segment(info); |
| |
| if (kernel_segment == ULONG_MAX) { |
| dbgprintf("%s: Kernel segment is not allocated\n", __func__); |
| result = EFAILED; |
| goto exit; |
| } |
| |
| dbgprintf("%s: kernel_segment: %016lx\n", __func__, kernel_segment); |
| dbgprintf("%s: text_offset: %016lx\n", __func__, |
| arm64_mem.text_offset); |
| dbgprintf("%s: image_size: %016lx\n", __func__, |
| arm64_mem.image_size); |
| dbgprintf("%s: phys_offset: %016lx\n", __func__, |
| arm64_mem.phys_offset); |
| dbgprintf("%s: vp_offset: %016lx\n", __func__, |
| arm64_mem.vp_offset); |
| dbgprintf("%s: PE format: %s\n", __func__, |
| (arm64_header_check_pe_sig(header) ? "yes" : "no")); |
| |
| /* load the kernel */ |
| add_segment_phys_virt(info, kernel_buf, kernel_size, |
| kernel_segment + arm64_mem.text_offset, |
| arm64_mem.image_size, 0); |
| |
| result = arm64_load_other_segments(info, kernel_segment |
| + arm64_mem.text_offset); |
| |
| exit: |
| if (result) |
| fprintf(stderr, "kexec: load failed.\n"); |
| return result; |
| } |
| |
| void image_arm64_usage(void) |
| { |
| printf( |
| " An ARM64 binary image, compressed or not, big or little endian.\n" |
| " Typically an Image, Image.gz or Image.lzma file.\n\n"); |
| } |