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m68k/kexec: refactor for kernel/Kconfig.kexec

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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/20230712161545.87870-8-eric.devolder@oracle.com
Signed-off-by: Eric DeVolder <eric.devolder@oracle.com>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Eric DeVolder 2023-07-12 12:15:38 -04:00 • committed by Andrew Morton
parent 19e6dd0b61
commit a7cc67de6a
1 changed files with 2 additions and 17 deletions
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19
arch/m68k/Kconfig
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@ -89,23 +89,8 @@ config MMU_SUN3
bool bool
depends on MMU && !MMU_MOTOROLA && !MMU_COLDFIRE depends on MMU && !MMU_MOTOROLA && !MMU_COLDFIRE
config KEXEC config ARCH_SUPPORTS_KEXEC
bool "kexec system call" def_bool M68KCLASSIC && MMU
depends on M68KCLASSIC && 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.
The name comes from the similarity to the exec system call.
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 BOOTINFO_PROC config BOOTINFO_PROC
bool "Export bootinfo in procfs" bool "Export bootinfo in procfs"