diff options
| author | Hari Bathini <hbathini@linux.ibm.com> | 2020-07-29 17:13:14 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-07-29 23:47:54 +1000 |
| commit | cb350c1f1f867db16725f1bb06be033ece19e998 (patch) | |
| tree | 8997d598bfb8be118dbb31ee156189afe8c55aa0 /arch/powerpc/include/asm/kexec.h | |
| parent | 1a1cf93c200581c72a3cd521e1e0a1a3b5d0077d (diff) | |
powerpc/kexec_file: Prepare elfcore header for crashing kernel
Prepare elf headers for the crashing kernel's core file using
crash_prepare_elf64_headers() and pass on this info to kdump kernel by
updating its command line with elfcorehdr parameter. Also, add
elfcorehdr location to reserve map to avoid it from being stomped on
while booting.
Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
Tested-by: Pingfan Liu <piliu@redhat.com>
Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
[mpe: Ensure cmdline is nul terminated]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/159602298855.575379.15819225623219909517.stgit@hbathini
Diffstat (limited to 'arch/powerpc/include/asm/kexec.h')
| -rw-r--r-- | arch/powerpc/include/asm/kexec.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/kexec.h b/arch/powerpc/include/asm/kexec.h index 807bb58ed8fa..55d6ede30c19 100644 --- a/arch/powerpc/include/asm/kexec.h +++ b/arch/powerpc/include/asm/kexec.h @@ -108,12 +108,18 @@ struct kimage_arch { unsigned long backup_start; void *backup_buf; + unsigned long elfcorehdr_addr; + unsigned long elf_headers_sz; + void *elf_headers; + #ifdef CONFIG_IMA_KEXEC phys_addr_t ima_buffer_addr; size_t ima_buffer_size; #endif }; +char *setup_kdump_cmdline(struct kimage *image, char *cmdline, + unsigned long cmdline_len); int setup_purgatory(struct kimage *image, const void *slave_code, const void *fdt, unsigned long kernel_load_addr, unsigned long fdt_load_addr); |