Hari Bathini bd7dc90e52 powerpc/64/kdump: Limit kdump base to 512MB ... Since commit e641eb03ab ("powerpc: Fix up the kdump base cap to 128M") memory for kdump kernel has been reserved at an offset of 128MB. This held up well for a long time before running into boot failure on LPARs having a lot of cores. Commit 7c5ed82b80 ("powerpc: Set crashkernel offset to mid of RMA region") fixed this boot failure by moving the offset to mid of RMA region. This change meant the offset is either 256MB or 512MB on LPARs as ppc64_rma_size was 512MB or 1024MB owing to commit 103a8542cb ("powerpc/book3s64/ radix: Fix boot failure with large amount of guest memory"). But ppc64_rma_size can be larger as well with newer f/w. So, limit crashkernel reservation offset to 512MB to avoid running into boot failures during kdump kernel boot, due to RTAS or other allocation restrictions. Also, while here, use SZ_128M instead of opening coding it. Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Tested-by: Sachin Sant <sachinp@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20220912065031.57416-1-hbathini@linux.ibm.com		2022-09-28 19:22:09 +10:00
..
core_32.c	powerpc: Remove CONFIG_FSL_BOOKE	2022-09-26 22:47:37 +10:00
core_64.c	powerpc: Remove CONFIG_PPC_BOOK3E	2022-09-26 23:00:13 +10:00
core.c	powerpc/64/kdump: Limit kdump base to 512MB	2022-09-28 19:22:09 +10:00
crash.c	powerpc/crash: save cpu register data in crash_smp_send_stop()	2022-07-28 16:22:13 +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: Fix build failure from uninitialised variable	2022-08-10 15:55:20 +10:00
file_load.c	powerpc: Delete unused function delete_fdt_mem_rsv()	2021-03-08 12:06:30 -07:00
Makefile	powerpc/kasan: Disable address sanitization in kexec paths	2022-05-22 15:58:29 +10:00
ranges.c	powerpc/64s: Move hash MMU support code under CONFIG_PPC_64S_HASH_MMU	2021-12-09 22:41:13 +11:00
relocate_32.S	powerpc: Remove CONFIG_FSL_BOOKE	2022-09-26 22:47:37 +10:00