[PATCH v2 03/13] arm/kexec: refactor for kernel/Kconfig.kexec
From: Eric DeVolder <hidden>
Date: 2023-06-19 15:00:33
Also in:
linux-m68k, linux-mips, linux-riscv, linux-s390, linux-sh, lkml, loongarch
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
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 <redacted> --- arch/arm/Kconfig | 29 ++++------------------------- 1 file changed, 4 insertions(+), 25 deletions(-)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 0fb4b218f665..6af0105407af 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig@@ -1639,20 +1639,8 @@ 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"
@@ -1662,17 +1650,8 @@ 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