Sourabh Jain 40c753993e powerpc/kexec_file: Use current CPU info while setting up FDT ... kexec_file_load() uses initial_boot_params in setting up the device tree for the kernel to be loaded. Though initial_boot_params holds info about CPUs at the time of boot, it doesn't account for hot added CPUs. So, kexec'ing with kexec_file_load() syscall leaves the kexec'ed kernel with inaccurate CPU info. If kdump kernel is loaded with kexec_file_load() syscall and the system crashes on a hot added CPU, the capture kernel hangs failing to identify the boot CPU, with no output. To avoid this from happening, extract current CPU info from of_root device node and use it for setting up the fdt in kexec_file_load case. Fixes: 6ecd0163d3 ("powerpc/kexec_file: Add appropriate regions for memory reserve map") Cc: stable@vger.kernel.org # v5.9+ Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com> Reviewed-by: Hari Bathini <hbathini@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20210429060256.199714-1-sourabhjain@linux.ibm.com		2021-05-04 22:26:57 +10:00
..
core_32.c
core_64.c	powerpc/book3s64/keys/kuap: Reset AMR/IAMR values on kexec	2020-07-20 22:57:59 +10:00
core.c	powerpc/crashkernel: Take "mem=" option into account	2020-06-02 20:59:05 +10:00
crash.c	powerpc/traps: Enhance readability for trap types	2021-04-17 22:20:19 +10:00
elf_64.c	powerpc: If kexec_build_elf_info() fails return immediately from elf64_load()	2021-04-26 16:28:26 -05:00
file_load_64.c	powerpc/kexec_file: Use current CPU info while setting up FDT	2021-05-04 22:26:57 +10:00
file_load.c	powerpc: Delete unused function delete_fdt_mem_rsv()	2021-03-08 12:06:30 -07:00
Makefile	powerpc: Move arch independent ima kexec functions to drivers/of/kexec.c	2021-03-08 12:06:29 -07:00
ranges.c	powerpc/kexec_file: Avoid stomping memory used by special regions	2020-07-29 23:47:53 +10:00
relocate_32.S