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Commit beb7d577 authored by Scott Branden's avatar Scott Branden Committed by Isaac J. Manjarres
Browse files

arm64: memory-hotplug: Add MEMORY_HOTPLUG, MEMORY_HOTREMOVE, MEMORY_PROBE 



Add memory-hotplug support for ARM64 platform.

This requires addition of
ARCH_ENABLE_MEMORY_HOTPLUG and ARCH_ENABLE_MEMORY_HOTREMOVE config options.

MEMORY_PROBE config option is added to support
/sys/devices/system/memory/probe functionality.

In addition architecture specific arch_add_memory and
arch_remove memory management functions are added.

Change-Id: I1fc4e8c93cfe1b9722b2fc8d811390e6cdfa7995
Signed-off-by: default avatarScott Branden <scott.branden@broadcom.com>
Patch-mainline: linux-kernel @ 11 Apr 2017, 18:24
Signed-off-by: default avatarSrivatsa Vaddagiri <vatsa@codeaurora.org>
[sudaraja@codeaurora.org: remove explicit zone calculation]
Signed-off-by: default avatarSudarshan Rajagopalan <sudaraja@codeaurora.org>
[isaacm@codeaurora.org: remove duplicate hotplug/hot remove code in init.c]
Signed-off-by: default avatarIsaac J. Manjarres <isaacm@codeaurora.org>
parent 536ac758

arch/arm64/Kconfig

+7 −0
Original line number Diff line number Diff line
@@ -275,6 +275,9 @@ config ZONE_DMA32 
config ARCH_ENABLE_MEMORY_HOTPLUG

	def_bool y



config ARCH_ENABLE_MEMORY_HOTREMOVE

	def_bool y



config SMP

	def_bool y
@@ -971,6 +974,10 @@ endif 
config ARCH_ENABLE_SPLIT_PMD_PTLOCK

	def_bool y if PGTABLE_LEVELS > 2



config ARCH_MEMORY_PROBE

	def_bool y

	depends on MEMORY_HOTPLUG



config SECCOMP

	bool "Enable seccomp to safely compute untrusted bytecode"

	---help---