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Date: Fri, 2 Sep 2016 13:03:51 +0200
From: Borislav Petkov <bp@alien8.de>
To: Tom Lendacky <thomas.lendacky@amd.com>
Cc: linux-arch@vger.kernel.org, linux-efi@vger.kernel.org,
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        Ingo Molnar <mingo@redhat.com>, Andy Lutomirski <luto@kernel.org>,
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Subject: Re: [RFC PATCH v2 03/20] x86: Secure Memory Encryption (SME) build
 enablement
Message-ID: <20160902110351.GA22559@nazgul.tnic>
References: <20160822223529.29880.50884.stgit@tlendack-t1.amdoffice.net>
 <20160822223559.29880.1502.stgit@tlendack-t1.amdoffice.net>
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On Mon, Aug 22, 2016 at 05:35:59PM -0500, Tom Lendacky wrote:
> Provide the Kconfig support to build the SME support in the kernel.
> 
> Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
> ---
>  arch/x86/Kconfig |    9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index c580d8c..131f329 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -1357,6 +1357,15 @@ config X86_DIRECT_GBPAGES
>  	  supports them), so don't confuse the user by printing
>  	  that we have them enabled.
>  
> +config AMD_MEM_ENCRYPT
> +	bool "Secure Memory Encryption support for AMD"

	     "AMD Secure Memory Encryption support"

> +	depends on X86_64 && CPU_SUP_AMD
> +	---help---
> +	  Say yes to enable the encryption of system memory. This requires
> +	  an AMD processor that supports Secure Memory Encryption (SME).
> +	  The encryption of system memory is disabled by default but can be
> +	  enabled with the mem_encrypt=on command line option.
> +
>  # Common NUMA Features
>  config NUMA
>  	bool "Numa Memory Allocation and Scheduler Support"

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
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