x86/Kconfig: introduce ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE

Enable x86_64 platform to use the MHP_MEMMAP_ON_MEMORY feature.

Link: https://lkml.kernel.org/r/20210421102701.25051-8-osalvador@suse.de
Signed-off-by: Oscar Salvador <osalvador@suse.de>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 0bbc157e4bc77e98d6910453cd5f74b241b1e2e4..0045e1b44190213e75a098390f18271c851d86ec 100644 (file)
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2432,6 +2432,9 @@ config ARCH_HAS_ADD_PAGES
        def_bool y
        depends on X86_64 && ARCH_ENABLE_MEMORY_HOTPLUG
 
+config ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE
+       def_bool y
+
 config USE_PERCPU_NUMA_NODE_ID
        def_bool y
        depends on NUMA