linux-kernel - Re: [Part2 PATCH v4 05/29] crypto: ccp: Add Platform Security Processor (PSP) device support

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Date:   Tue, 3 Oct 2017 11:19:48 -0500
From:   Brijesh Singh <brijesh.singh@....com>
To:     Borislav Petkov <bp@...e.de>
Cc:     brijesh.singh@....com, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org, Paolo Bonzini <pbonzini@...hat.com>,
        Radim Krčmář <rkrcmar@...hat.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Gary Hook <gary.hook@....com>,
        Tom Lendacky <thomas.lendacky@....com>,
        linux-crypto@...r.kernel.org
Subject: Re: [Part2 PATCH v4 05/29] crypto: ccp: Add Platform Security
 Processor (PSP) device support



On 10/03/2017 11:17 AM, Borislav Petkov wrote:
...

> 
> No, please add my patch below to your set for the CRYPTO_DEV_CCP_DD
> dependency as it is a separate thing. Your patch should concentrate only
> on adding the PSP and its dependencies.
> 

Sure, I will include your patch in my series. thanks


> ---
> From: Borislav Petkov <bp@...e.de>
> Date: Sat, 30 Sep 2017 10:06:27 +0200
> Subject: [PATCH] crypto: ccp: Build the AMD secure processor driver only with
>   AMD CPU support
> 
> This is AMD-specific hardware so present it in Kconfig only when AMD
> CPU support is enabled or on ARM64 where it is also used.
> 
> Signed-off-by: Borislav Petkov <bp@...e.de>
> Cc: Brijesh Singh <brijesh.singh@....com>
> Cc: Tom Lendacky <thomas.lendacky@....com>
> Cc: Gary Hook <gary.hook@....com>
> Cc: Herbert Xu <herbert@...dor.apana.org.au>
> Cc: "David S. Miller" <davem@...emloft.net>
> Cc: linux-crypto@...r.kernel.org
> ---
>   drivers/crypto/ccp/Kconfig | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/crypto/ccp/Kconfig b/drivers/crypto/ccp/Kconfig
> index 627f3e61dcac..f19f57162225 100644
> --- a/drivers/crypto/ccp/Kconfig
> +++ b/drivers/crypto/ccp/Kconfig
> @@ -1,5 +1,6 @@
>   config CRYPTO_DEV_CCP_DD
>   	tristate "Secure Processor device driver"
> +	depends on CPU_SUP_AMD || ARM64
>   	default m
>   	help
>   	  Provides AMD Secure Processor device driver.
>