[PATCH v7 2/8] powerpc/crash hp: introduce a new config option CRASH_HOTPLUG
From: Sourabh Jain <hidden>
Date: 2023-01-15 15:04:22
Also in:
kexec
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
The config option CRASH_HOTPLUG enables in kernel update to kexec segments due to CPU/Memory hotplug events. By default it is disabled. Signed-off-by: Sourabh Jain <redacted> --- arch/powerpc/Kconfig | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index b8c4ac56bddc5..57d18cc5d27c5 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig@@ -668,6 +668,18 @@ config CRASH_DUMP The same kernel binary can be used as production kernel and dump capture kernel. +config CRASH_HOTPLUG + bool "Update crash capture system on CPU/Memory hotplug event" + default n + depends on CRASH_DUMP && (HOTPLUG_CPU || MEMORY_HOTPLUG) + help + In kernel update to relevant kexec segments due to change + in system configuration, rather reloading all the kexec + segments again from userspace by monitoring CPU/Memory + hotplug event in userspace using udev. + + If unsure, say Y. + config FA_DUMP bool "Firmware-assisted dump" depends on PPC64 && (PPC_RTAS || PPC_POWERNV)
--
2.39.0