[RFC PATCH 01/18] mm: arm64 add Kconfig option for kernel replication

[Nikita Panov]

Acked-by: Artem Kuzin <artem.kuzin@xxxxxxxxxx>
Acked-by: Alexander Grubnikov <alexander.grubnikov@xxxxxxxxxx>
Acked-by: Ilya Hanov <ilya.hanov@xxxxxxxxxxxxxxxxxxx>
Acked-by: Denis Darvish <darvish.denis@xxxxxxxxxx>
Signed-off-by: Nikita Panov <panov.nikita@xxxxxxxxxx>
---
 mm/Kconfig | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/mm/Kconfig b/mm/Kconfig
index 604c58199acb..1302268b72b6 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -1446,6 +1446,16 @@ config LOCK_MM_AND_FIND_VMA
 	bool
 	depends on !STACK_GROWSUP
 
+config KERNEL_REPLICATION
+	bool "Enable kernel text and ro-data replication across NUMA nodes"
+	default n
+	depends on ARM64 && MMU && NUMA && !MAXSMP
+
+	help
+	  Creates per-NUMA node replicas of kernel text and ro-data sections.
+	  Page tables are replicated partially, according to replicated kernel memory range.
+	  If unsure, say "n".
+
 config IOMMU_MM_DATA
 	bool
 
-- 
2.34.1