loongarch/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/20230712161545.87870-7-eric.devolder@oracle.com Signed-off-by: Eric DeVolder <eric.devolder@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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@ -538,28 +538,16 @@ config CPU_HAS_PREFETCH
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bool
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bool
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default y
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default y
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config KEXEC
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config ARCH_SUPPORTS_KEXEC
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bool "Kexec system call"
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def_bool y
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select KEXEC_CORE
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help
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kexec is a system call that implements the ability to shutdown your
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current kernel, and to start another kernel. It is like a reboot
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but it is independent of the system firmware. And like a reboot
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you can start any kernel with it, not just Linux.
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The name comes from the similarity to the exec system call.
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config ARCH_SUPPORTS_CRASH_DUMP
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def_bool y
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config CRASH_DUMP
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config ARCH_SELECTS_CRASH_DUMP
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bool "Build kdump crash kernel"
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def_bool y
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depends on CRASH_DUMP
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select RELOCATABLE
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select RELOCATABLE
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help
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Generate crash dump after being started by kexec. This should
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be normally only set in special crash dump kernels which are
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loaded in the main kernel with kexec-tools into a specially
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reserved region and then later executed after a crash by
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kdump/kexec.
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For more details see Documentation/admin-guide/kdump/kdump.rst
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config RELOCATABLE
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config RELOCATABLE
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bool "Relocatable kernel"
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bool "Relocatable kernel"
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