To support NUMA systems whose physical address layout is not continuous on one node, nodes spanning other nodes feature is required.
Signed-off-by: Janghyuck Kim <[email protected]> --- arch/arm64/Kconfig | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 49b8d017cba6..18ff7ce9dd60 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -1004,6 +1004,14 @@ config NEED_PER_CPU_EMBED_FIRST_CHUNK config HOLES_IN_ZONE def_bool y +# Some NUMA nodes have memory ranges that span +# other nodes. Even though a pfn is valid and +# between a node's start and end pfns, it may not +# reside on that node. See memmap_init_zone() +# for details. +config NODES_SPAN_OTHER_NODES + depends on NUMA + source "kernel/Kconfig.hz" config ARCH_SUPPORTS_DEBUG_PAGEALLOC -- 2.28.0
