diff options
| author | Eric DeVolder <eric.devolder@oracle.com> | 2023-07-12 12:15:44 -0400 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-08-18 10:18:54 -0700 |
| commit | 40445d060152845f9023f5404d4b5f7bd7f11f39 (patch) | |
| tree | 4826f4efb646cb246cf4a7d2c7c6e3cd5b658b3c /arch/sh | |
| parent | 75239cf775b811662f3a9e35e8ea0cd7a98e3fed (diff) | |
| download | linux-40445d060152845f9023f5404d4b5f7bd7f11f39.tar.gz | |
sh/kexec: refactor for kernel/Kconfig.kexec
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/20230712161545.87870-14-eric.devolder@oracle.com
Signed-off-by: Eric DeVolder <eric.devolder@oracle.com>
Acked-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/sh')
| -rw-r--r-- | arch/sh/Kconfig | 46 |
1 files changed, 8 insertions, 38 deletions
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 2b3ce4fd39563..1cf6603781c77 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -548,44 +548,14 @@ 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. - - 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 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 + def_bool MMU + +config ARCH_SUPPORTS_CRASH_DUMP + def_bool BROKEN_ON_SMP + +config ARCH_SUPPORTS_KEXEC_JUMP + def_bool y config PHYSICAL_START hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP) |