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SubjectRe: [PATCH V3 4/5] arm64/mm: Enable HugeTLB migration
Date
On Tue, Oct 23, 2018 at 06:32:00PM +0530, Anshuman Khandual wrote:
> Let arm64 subscribe to generic HugeTLB page migration framework. Right now
> this only works on the following PMD and PUD level HugeTLB page sizes with
> various kernel base page size combinations.
>
> CONT PTE PMD CONT PMD PUD
> -------- --- -------- ---
> 4K: NA 2M NA 1G
> 16K: NA 32M NA
> 64K: NA 512M NA
>
> Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
> Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>


Reviewed-by: Steve Capper <steve.capper@arm.com>

> ---
> arch/arm64/Kconfig | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index a8ae30f..4b3e269 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -1331,6 +1331,10 @@ config SYSVIPC_COMPAT
> def_bool y
> depends on COMPAT && SYSVIPC
>
> +config ARCH_ENABLE_HUGEPAGE_MIGRATION
> + def_bool y
> + depends on HUGETLB_PAGE && MIGRATION
> +
> menu "Power management options"
>
> source "kernel/power/Kconfig"
> --
> 2.7.4
>

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