+ sh-kexec-refactor-for-kernel-kconfigkexec.patch added to mm-nonmm-unstable branch

[Andrew Morton <akpm@linux-foundation.org>]

The patch titled
     Subject: sh/kexec: refactor for kernel/Kconfig.kexec
has been added to the -mm mm-nonmm-unstable branch.  Its filename is
     sh-kexec-refactor-for-kernel-kconfigkexec.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/sh-kexec-refactor-for-kernel-kconfigkexec.patch

This patch will later appear in the mm-nonmm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Eric DeVolder <eric.devolder@oracle.com>
Subject: sh/kexec: refactor for kernel/Kconfig.kexec
Date: Thu, 6 Jul 2023 18:20:27 -0400

The kexec and crash kernel options are provided in the common
kernel/Kconfig.kexec.  Utilize the common options and provide the
ARCH_SUPPORTS_ and ARCH_SELECTS_ entries to recreate the equivalent set of
KEXEC and CRASH options.

Link: https://lkml.kernel.org/r/20230706222027.189117-14-eric.devolder@oracle.com
Signed-off-by: Eric DeVolder <eric.devolder@oracle.com>
Acked-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Sourabh Jain <sourabhjain@linux.ibm.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/sh/Kconfig |   42 ++++++------------------------------------
 1 file changed, 6 insertions(+), 36 deletions(-)

--- a/arch/sh/Kconfig~sh-kexec-refactor-for-kernel-kconfigkexec
+++ a/arch/sh/Kconfig
@@ -549,44 +549,14 @@ menu "Kernel features"
 
 source "kernel/Kconfig.hz"
 
-config KEXEC
-	bool "kexec system call (EXPERIMENTAL)"
-	depends on MMU
-	select KEXEC_CORE
-	help
-	  kexec is a system call that implements the ability to shutdown your
-	  current kernel, and to start another kernel.  It is like a reboot
-	  but it is independent of the system firmware.  And like a reboot
-	  you can start any kernel with it, not just Linux.
+config ARCH_SUPPORTS_KEXEC
+	def_bool MMU
 
-	  The name comes from the similarity to the exec system call.
+config ARCH_SUPPORTS_CRASH_DUMP
+	def_bool BROKEN_ON_SMP
 
-	  It is an ongoing process to be certain the hardware in a machine
-	  is properly shutdown, so do not be surprised if this code does not
-	  initially work for you.  As of this writing the exact hardware
-	  interface is strongly in flux, so no good recommendation can be
-	  made.
-
-config CRASH_DUMP
-	bool "kernel crash dumps (EXPERIMENTAL)"
-	depends on BROKEN_ON_SMP
-	help
-	  Generate crash dump after being started by kexec.
-	  This should be normally only set in special crash dump kernels
-	  which are loaded in the main kernel with kexec-tools into
-	  a specially reserved region and then later executed after
-	  a crash by kdump/kexec. The crash dump kernel must be compiled
-	  to a memory address not used by the main kernel using
-	  PHYSICAL_START.
-
-	  For more details see Documentation/admin-guide/kdump/kdump.rst
-
-config KEXEC_JUMP
-	bool "kexec jump (EXPERIMENTAL)"
-	depends on KEXEC && HIBERNATION
-	help
-	  Jump between original kernel and kexeced kernel and invoke
-	  code via KEXEC
+config ARCH_SUPPORTS_KEXEC_JUMP
+	def_bool y
 
 config PHYSICAL_START
 	hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP)
_

Patches currently in -mm which might be from eric.devolder@oracle.com are

kexec-consolidate-kexec-and-crash-options-into-kernel-kconfigkexec.patch
x86-kexec-refactor-for-kernel-kconfigkexec.patch
arm-kexec-refactor-for-kernel-kconfigkexec.patch
ia64-kexec-refactor-for-kernel-kconfigkexec.patch
arm64-kexec-refactor-for-kernel-kconfigkexec.patch
loongarch-kexec-refactor-for-kernel-kconfigkexec.patch
m68k-kexec-refactor-for-kernel-kconfigkexec.patch
mips-kexec-refactor-for-kernel-kconfigkexec.patch
parisc-kexec-refactor-for-kernel-kconfigkexec.patch
powerpc-kexec-refactor-for-kernel-kconfigkexec.patch
riscv-kexec-refactor-for-kernel-kconfigkexec.patch
s390-kexec-refactor-for-kernel-kconfigkexec.patch
sh-kexec-refactor-for-kernel-kconfigkexec.patch