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.
Signed-off-by: Eric DeVolder <[email protected]>
---
arch/arm/Kconfig | 29 ++++-------------------------
1 file changed, 4 insertions(+), 25 deletions(-)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 7a27550ff3c1..1a6a6eb48a15 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1645,20 +1645,8 @@ config XIP_DEFLATED_DATA
copied, saving some precious ROM space. A possible drawback is a
slightly longer boot delay.
-config KEXEC
- bool "Kexec system call (EXPERIMENTAL)"
- depends on (!SMP || PM_SLEEP_SMP)
- 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.
-
- 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.
+config ARCH_SUPPORTS_KEXEC
+ def_bool (!SMP || PM_SLEEP_SMP) && MMU
config ATAGS_PROC
bool "Export atags in procfs"
@@ -1668,17 +1656,8 @@ config ATAGS_PROC
Should the atags used to boot the kernel be exported in an "atags"
file in procfs. Useful with kexec.
-config CRASH_DUMP
- bool "Build kdump crash kernel (EXPERIMENTAL)"
- 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
-
- For more details see Documentation/admin-guide/kdump/kdump.rst
+config ARCH_SUPPORTS_CRASH_DUMP
+ def_bool y
config AUTO_ZRELADDR
bool "Auto calculation of the decompressed kernel image address" if !ARCH_MULTIPLATFORM
--
2.31.1