The patch titled
Subject: ppc, crash: enforce KEXEC and KEXEC_FILE to select CRASH_DUMP
has been added to the -mm mm-unstable branch. Its filename is
ppc-crash-enforce-kexec-and-kexec_file-to-select-crash_dump.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/ppc-crash-enforce-kexec-and-kexec_file-to-select-crash_dump.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Baoquan He <bhe@xxxxxxxxxx>
Subject: ppc, crash: enforce KEXEC and KEXEC_FILE to select CRASH_DUMP
Date: Fri, 19 Jan 2024 22:52:35 +0800
In PowerPC, the crash dumping and kexec reboot share code in
arch_kexec_locate_mem_hole(), in which struct crash_mem is used.
Here enfoce enforce KEXEC and KEXEC_FILE to select CRASH_DUMP for now.
Link: https://lkml.kernel.org/r/20240119145241.769622-9-bhe@xxxxxxxxxx
Signed-off-by: Baoquan He <bhe@xxxxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Eric W. Biederman <ebiederm@xxxxxxxxxxxx>
Cc: Hari Bathini <hbathini@xxxxxxxxxxxxx>
Cc: Pingfan Liu <piliu@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/powerpc/Kconfig | 5 +++++
1 file changed, 5 insertions(+)
--- a/arch/powerpc/Kconfig~ppc-crash-enforce-kexec-and-kexec_file-to-select-crash_dump
+++ a/arch/powerpc/Kconfig
@@ -608,6 +608,10 @@ config PPC64_SUPPORTS_MEMORY_FAILURE
config ARCH_SUPPORTS_KEXEC
def_bool PPC_BOOK3S || PPC_E500 || (44x && !SMP)
+config ARCH_SELECTS_KEXEC
+ def_bool y
+ select CRASH_DUMP
+
config ARCH_SUPPORTS_KEXEC_FILE
def_bool PPC64
@@ -618,6 +622,7 @@ config ARCH_SELECTS_KEXEC_FILE
def_bool y
depends on KEXEC_FILE
select KEXEC_ELF
+ select CRASH_DUMP
select HAVE_IMA_KEXEC if IMA
config PPC64_BIG_ENDIAN_ELF_ABI_V2
_
Patches currently in -mm which might be from bhe@xxxxxxxxxx are
mm-vmalloc-remove-vmap_area_list.patch
kexec-split-crashkernel-reservation-code-out-from-crash_corec.patch
crash-split-vmcoreinfo-exporting-code-out-from-crash_corec.patch
crash-remove-dependency-of-fa_dump-on-crash_dump.patch
crash-split-crash-dumping-code-out-from-kexec_corec.patch
crash-clean-up-kdump-related-config-items.patch
x86-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
arm64-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
ppc-crash-enforce-kexec-and-kexec_file-to-select-crash_dump.patch
s390-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
sh-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
arm-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
mips-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
riscv-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
loongarch-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
panic-suppress-gnu_printf-warning.patch
