This change enables HugeTLB page migration for PPC64_BOOK3S systems
for HugeTLB pages implemented at the PMD level. It enables the kernel
configuration option ARCH_ENABLE_HUGEPAGE_MIGRATION which turns on
'hugepage_migration_supported' function which is checked for feature
presence during migration.
Signed-off-by: Anshuman Khandual <khandual@xxxxxxxxxxxxxxxxxx>
---
arch/powerpc/Kconfig | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index c6920bb..cefc368 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -86,6 +86,10 @@ config GENERIC_HWEIGHT
config ARCH_HAS_DMA_SET_COHERENT_MASK
bool
+config ARCH_ENABLE_HUGEPAGE_MIGRATION
+ def_bool y
+ depends on PPC_BOOK3S_64 && HUGETLB_PAGE && MIGRATION
+
config PPC
bool
default y
--
2.1.0
--
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