Hi I am trying to boot zImage as the secondary kernel on Freescale p2020ds ppc reference board. I am using the below commands to load the secondary kernel: $ kexec -d -l /usr/sbin/zImage --ramdisk=/usr/sbin/kcrashramfs.cpio.gz --append="console=ttyS0,115200 root=/dev/ram maxcpus=1" ------------------------------------------------------------------------------------------------------------------------------------------------------- my_load:667: do Try gzip decompression. kernel: 0xb7a8d008 kernel_size: 0x32be60 0000000000000000-00000000e0000000 : 0 get base memory ranges:1 sym: .data info: 03 other: 00 shndx: 5 value: 0 size: 0 sym: .data value: 32e950 addr: 329032 sym: .data info: 03 other: 00 shndx: 5 value: 0 size: 0 sym: .data value: 32e950 addr: 32903a sym: sha256_starts info: 12 other: 00 shndx: 2 value: 94c size: bc sym: sha256_starts value: 329970 addr: 329044 sym: sha256_update info: 12 other: 00 shndx: 2 value: 528c size: 190 sym: sha256_update value: 32e2b0 addr: 32905c sym: sha256_finish info: 12 other: 00 shndx: 2 value: 541c size: 498 sym: sha256_finish value: 32e440 addr: 32907c sym: memcmp info: 12 other: 00 shndx: 2 value: 61c size: 38 sym: memcmp value: 329640 addr: 329090 sym: .rodata.str1.4 info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .rodata.str1.4 value: 32e8d8 addr: 32909e sym: .rodata.str1.4 info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .rodata.str1.4 value: 32e8d8 addr: 3290a2 sym: .rodata.str1.4 info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .rodata.str1.4 value: 32e908 addr: 3290a6 sym: printf info: 12 other: 00 shndx: 2 value: 540 size: 68 sym: printf value: 329564 addr: 3290a8 sym: .rodata.str1.4 info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .rodata.str1.4 value: 32e8f8 addr: 3290ae sym: .rodata.str1.4 info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .rodata.str1.4 value: 32e8f8 addr: 3290b2 sym: printf info: 12 other: 00 shndx: 2 value: 540 size: 68 sym: printf value: 329564 addr: 3290b4 sym: .rodata.str1.4 info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .rodata.str1.4 value: 32e908 addr: 3290be sym: printf info: 12 other: 00 shndx: 2 value: 540 size: 68 sym: printf value: 329564 addr: 3290cc sym: .rodata.str1.4 info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .rodata.str1.4 value: 32e910 addr: 3290de sym: .rodata.str1.4 info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .rodata.str1.4 value: 32e910 addr: 3290e6 sym: printf info: 12 other: 00 shndx: 2 value: 540 size: 68 sym: printf value: 329564 addr: 3290ec sym: .rodata.str1.4 info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .rodata.str1.4 value: 32e914 addr: 3290f2 sym: .rodata.str1.4 info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .rodata.str1.4 value: 32e914 addr: 3290f6 sym: printf info: 12 other: 00 shndx: 2 value: 540 size: 68 sym: printf value: 329564 addr: 3290f8 sym: printf info: 12 other: 00 shndx: 2 value: 540 size: 68 sym: printf value: 329564 addr: 329104 sym: printf info: 12 other: 00 shndx: 2 value: 540 size: 68 sym: printf value: 329564 addr: 329118 sym: _restgpr_27_x info: 12 other: 00 shndx: 2 value: 8a4 size: 0 sym: _restgpr_27_x value: 3298c8 addr: 329124 sym: .rodata.str1.4 info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .rodata.str1.4 value: 32e924 addr: 32912e sym: .rodata.str1.4 info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .rodata.str1.4 value: 32e924 addr: 329136 sym: printf info: 12 other: 00 shndx: 2 value: 540 size: 68 sym: printf value: 329564 addr: 32913c sym: setup_arch info: 12 other: 00 shndx: 2 value: 93c size: 4 sym: setup_arch value: 329960 addr: 329140 sym: verify_sha256_digest info: 12 other: 00 shndx: 2 value: 0 size: 104 sym: verify_sha256_digest value: 329024 addr: 329144 sym: post_verification_setup_arch info: 12 other: 00 shndx: 2 value: 940 size: 4 sym: post_verification_setup_arch value: 329964 addr: 329160 sym: .rodata.str1.4 info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .rodata.str1.4 value: 32e938 addr: 32918a sym: putchar info: 12 other: 00 shndx: 2 value: 948 size: 4 sym: putchar value: 32996c addr: 3291b4 sym: putchar info: 12 other: 00 shndx: 2 value: 948 size: 4 sym: putchar value: 32996c addr: 329224 sym: __lshrdi3 info: 10 other: 00 shndx: 2 value: 918 size: 0 sym: __lshrdi3 value: 32993c addr: 32933c sym: .rodata.str1.4 info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .rodata.str1.4 value: 32e938 addr: 329342 sym: putchar info: 12 other: 00 shndx: 2 value: 948 size: 4 sym: putchar value: 32996c addr: 3294dc sym: _restgpr_20_x info: 12 other: 00 shndx: 2 value: 888 size: 0 sym: _restgpr_20_x value: 3298ac addr: 329504 sym: vsprintf info: 12 other: 00 shndx: 2 value: 140 size: 3a4 sym: vsprintf value: 329164 addr: 329550 sym: vsprintf info: 12 other: 00 shndx: 2 value: 140 size: 3a4 sym: vsprintf value: 329164 addr: 3295b8 sym: my_thread_ptr info: 11 other: 00 shndx: 6 value: 4 size: 4 sym: my_thread_ptr value: 32eab4 addr: 32978a sym: my_thread_ptr info: 11 other: 00 shndx: 6 value: 4 size: 4 sym: my_thread_ptr value: 32eab4 addr: 32978e sym: stack info: 11 other: 00 shndx: 6 value: c size: 4 sym: stack value: 32eabc addr: 329796 sym: stack info: 11 other: 00 shndx: 6 value: c size: 4 sym: stack value: 32eabc addr: 32979a sym: purgatory info: 12 other: 00 shndx: 2 value: 104 size: 3c sym: purgatory value: 329128 addr: 3297a4 sym: dt_offset info: 11 other: 00 shndx: 6 value: 8 size: 4 sym: dt_offset value: 32eab8 addr: 3297be sym: dt_offset info: 11 other: 00 shndx: 6 value: 8 size: 4 sym: dt_offset value: 32eab8 addr: 3297c2 sym: kernel info: 11 other: 00 shndx: 6 value: 0 size: 4 sym: kernel value: 32eab0 addr: 3297da sym: kernel info: 11 other: 00 shndx: 6 value: 0 size: 4 sym: kernel value: 32eab0 addr: 3297de sym: memcpy info: 12 other: 00 shndx: 2 value: 5f8 size: 24 sym: memcpy value: 32961c addr: 32e380 sym: sha256_process info: 12 other: 00 shndx: 2 value: a08 size: 4884 sym: sha256_process value: 329a2c addr: 32e394 sym: sha256_process info: 12 other: 00 shndx: 2 value: a08 size: 4884 sym: sha256_process value: 329a2c addr: 32e3cc sym: memcpy info: 12 other: 00 shndx: 2 value: 5f8 size: 24 sym: memcpy value: 32961c addr: 32e41c sym: .data info: 03 other: 00 shndx: 5 value: 0 size: 0 sym: .data value: 32ea70 addr: 32e53e sym: .data info: 03 other: 00 shndx: 5 value: 0 size: 0 sym: .data value: 32ea70 addr: 32e542 sym: sha256_update info: 12 other: 00 shndx: 2 value: 528c size: 190 sym: sha256_update value: 32e2b0 addr: 32e548 sym: sha256_update info: 12 other: 00 shndx: 2 value: 528c size: 190 sym: sha256_update value: 32e2b0 addr: 32e55c Modified cmdline:console=ttyS0,115200 root=/dev/ram maxcpus=1 reserve regions: 2 0: offset: 23fc000, size: 4000 1: offset: 2fd0e000, size: 2f131a debug.dtb written kexec_load: entry = 0x329678 flags = 0x0 nr_segments = 4 segment[0].buf = 0xb7a9d008 segment[0].bufsz = 0x318c65 segment[0].mem = (nil) segment[0].memsz = 0x329000 segment[1].buf = 0x10082a50 segment[1].bufsz = 0x5ac8 segment[1].mem = 0x329000 segment[1].memsz = 0x6000 segment[2].buf = 0x10088580 segment[2].bufsz = 0x3090 segment[2].mem = 0x23fc000 segment[2].memsz = 0x4000 segment[3].buf = 0xb779b008 segment[3].bufsz = 0x2f131a segment[3].mem = 0x2fd0e000 segment[3].memsz = 0x2f2000 ------------------------------------------------------------------------------------------------------------------------------------------------------- and execute the secondary kernel using the below command $ kexec -e As the zImage is also and elf file format, but the control is not getting transferred to the zImage. I can see kexec is able to load all the segments properly, but looks like its not able to figure out the entry point to start execution with zImage. ------------------------------------------------------------------------------------------------------------------------------------------------------- kexec_load: entry = 0x329678 flags = 0x0 ------------------------------------------------------------------------------------------------------------------------------------------------------- On the same board (i.e. Freescale p2020ds), uImage and vmlinux works fine. Just curious to know , why the zImage support is still not provided in the kexec for ppc ?? Is there any restriction from kexec design point of view ? Thanks & Regards, Sunil Kumar
