linux-kernel - Re: [RFC PATCH 01/12] mm: add a new config to manage the code

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Date:	Mon, 8 Jun 2015 14:52:03 +0300
From:	Leon Romanovsky <leon@...n.nu>
To:	Xishi Qiu <qiuxishi@...wei.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>, nao.horiguchi@...il.com,
	Yinghai Lu <yinghai@...nel.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>, mingo@...e.hu,
	Xiexiuqi <xiexiuqi@...wei.com>,
	Hanjun Guo <guohanjun@...wei.com>,
	"Luck, Tony" <tony.luck@...el.com>, Linux MM <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH 01/12] mm: add a new config to manage the code

On Thu, Jun 4, 2015 at 3:56 PM, Xishi Qiu <qiuxishi@...wei.com> wrote:
> This patch introduces a new config called "CONFIG_ACPI_MIRROR_MEMORY", it is
> used to on/off the feature.
>
> Signed-off-by: Xishi Qiu <qiuxishi@...wei.com>
> ---
>  mm/Kconfig | 8 ++++++++
>  1 file changed, 8 insertions(+)
>
> diff --git a/mm/Kconfig b/mm/Kconfig
> index 390214d..4f2a726 100644
> --- a/mm/Kconfig
> +++ b/mm/Kconfig
> @@ -200,6 +200,14 @@ config MEMORY_HOTREMOVE
>         depends on MEMORY_HOTPLUG && ARCH_ENABLE_MEMORY_HOTREMOVE
>         depends on MIGRATION
>
> +config MEMORY_MIRROR
> +       bool "Address range mirroring support"
> +       depends on X86 && NUMA
> +       default y
Is it correct for the systems (NOT xeon) without memory support built in?

> +       help
> +         This feature depends on hardware and firmware support.
> +         ACPI or EFI records the mirror info.
> +
>  #
>  # If we have space for more page flags then we can enable additional
>  # optimizations and functionality.
> --
> 2.0.0
>
>
> --
> To unsubscribe, send a message with 'unsubscribe linux-mm' in
> the body to majordomo@...ck.org.  For more info on Linux MM,
> see: http://www.linux-mm.org/ .
> Don't email: <a href=mailto:"dont@...ck.org"> email@...ck.org </a>



-- 
Leon Romanovsky | Independent Linux Consultant
        www.leon.nu | leon@...n.nu
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