linux-kernel - Re: [PATCH 1/4] tee: allow compilation of tee subsystem for AMD CPUs

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Message-ID: <13954c4f-378f-a31c-2ee4-2ab0aea632e0@amd.com>
Date:   Fri, 27 Dec 2019 12:37:20 -0600
From:   Gary R Hook <ghook@....com>
To:     Rijo Thomas <Rijo-john.Thomas@....com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S . Miller" <davem@...emloft.net>,
        linux-kernel@...r.kernel.org, linux-crypto@...r.kernel.org,
        tee-dev@...ts.linaro.org
Cc:     Nimesh Easow <Nimesh.Easow@....com>,
        Devaraj Rangasamy <Devaraj.Rangasamy@....com>,
        Jens Wiklander <jens.wiklander@...aro.org>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Tom Lendacky <thomas.lendacky@....com>,
        Gary Hook <gary.hook@....com>
Subject: Re: [PATCH 1/4] tee: allow compilation of tee subsystem for AMD CPUs

On 12/26/19 11:24 PM, Rijo Thomas wrote:
> Allow compilation of tee subsystem for AMD's CPUs which have a dedicated
> AMD Secure Processor for Trusted Execution Environment (TEE).
> 
> Acked-by: Jens Wiklander <jens.wiklander@...aro.org>
> Co-developed-by: Devaraj Rangasamy <Devaraj.Rangasamy@....com>
> Signed-off-by: Devaraj Rangasamy <Devaraj.Rangasamy@....com>
> Signed-off-by: Rijo Thomas <Rijo-john.Thomas@....com>

Reviewed-by: Gary R Hook <gary.hook@....com>

> ---
>   drivers/tee/Kconfig | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/tee/Kconfig b/drivers/tee/Kconfig
> index 676ffcb..4f3197d 100644
> --- a/drivers/tee/Kconfig
> +++ b/drivers/tee/Kconfig
> @@ -2,7 +2,7 @@
>   # Generic Trusted Execution Environment Configuration
>   config TEE
>   	tristate "Trusted Execution Environment support"
> -	depends on HAVE_ARM_SMCCC || COMPILE_TEST
> +	depends on HAVE_ARM_SMCCC || COMPILE_TEST || CPU_SUP_AMD
>   	select DMA_SHARED_BUFFER
>   	select GENERIC_ALLOCATOR
>   	help
>