Thread (31 messages) 31 messages, 5 authors, 2024-02-23
STALE847d
Revisions (2)
  1. v2 current
  2. v3 [diff vs current]

[PATCH v2 08/14] ppc, crash: enforce KEXEC and KEXEC_FILE to select CRASH_DUMP

From: Baoquan He <hidden>
Date: 2024-01-19 14:53:59
Also in: kexec, linux-arm-kernel, linux-mips, linux-riscv, linux-s390, linux-sh, lkml, loongarch
Subsystem: linux for powerpc (32-bit and 64-bit), the rest · Maintainers: Madhavan Srinivasan, Michael Ellerman, Linus Torvalds

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.

Signed-off-by: Baoquan He <redacted>
---
 arch/powerpc/Kconfig | 5 +++++
 1 file changed, 5 insertions(+)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 1cdb8fdd3735..fc3cd7f4bb73 100644
--- a/arch/powerpc/Kconfig
+++ b/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
-- 
2.41.0
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