path: root/arch/Kconfig

# SPDX-License-Identifier: GPL-2.0
#
# General architecture dependent options
#

#
# Note: arch/$(SRCARCH)/Kconfig needs to be included first so that it can
# override the default values in this file.
#
source "arch/$(SRCARCH)/Kconfig"

config ARCH_CONFIGURES_CPU_MITIGATIONS
	bool

if !ARCH_CONFIGURES_CPU_MITIGATIONS
config CPU_MITIGATIONS
	def_bool y
endif

#
# Selected by architectures that need custom DMA operations for e.g. legacy
# IOMMUs not handled by dma-iommu.  Drivers must never select this symbol.
#
config ARCH_HAS_DMA_OPS
	depends on HAS_DMA
	select DMA_OPS_HELPERS
	bool

menu "General architecture-dependent options"

config ARCH_HAS_SUBPAGE_FAULTS
	bool
	help
	  Select if the architecture can check permissions at sub-page
	  granularity (e.g. arm64 MTE). The probe_user_*() functions
	  must be implemented.

config HOTPLUG_SMT
	bool

config SMT_NUM_THREADS_DYNAMIC
	bool

# Selected by HOTPLUG_CORE_SYNC_DEAD or HOTPLUG_CORE_SYNC_FULL
config HOTPLUG_CORE_SYNC
	bool

# Basic CPU dead synchronization selected by architecture
config HOTPLUG_CORE_SYNC_DEAD
	bool
	select HOTPLUG_CORE_SYNC

# Full CPU synchronization with alive state selected by architecture
config HOTPLUG_CORE_SYNC_FULL
	bool
	select HOTPLUG_CORE_SYNC_DEAD if HOTPLUG_CPU
	select HOTPLUG_CORE_SYNC

config HOTPLUG_SPLIT_STARTUP
	bool
	select HOTPLUG_CORE_SYNC_FULL

config HOTPLUG_PARALLEL
	bool
	select HOTPLUG_SPLIT_STARTUP

config GENERIC_ENTRY
	bool

config KPROBES
	bool "Kprobes"
	depends