Add config switch and kernel parameter for CPU0 hotplug. Besides, disable config ARM64_BOOTPARAM_HOTPLUG_CPU0 in openeuler_defconfig by default.
Zheng Zengkai (2): arm64: Add config switch and kernel parameter for CPU0 hotplug config: disable config ARM64_BOOTPARAM_HOTPLUG_CPU0 by default
.../admin-guide/kernel-parameters.txt | 8 ++++++ arch/arm64/Kconfig | 28 +++++++++++++++++++ arch/arm64/configs/openeuler_defconfig | 1 + arch/arm64/kernel/setup.c | 18 +++++++++++- 4 files changed, 54 insertions(+), 1 deletion(-)