linux-kernel - Re: [PATCH 10/14] set_memory.h: provide set_memory

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Message-ID: <cedbd051-cc59-1f80-4143-975342fc5e0c@amd.com>
Date:   Mon, 19 Mar 2018 09:21:20 -0500
From:   Tom Lendacky <thomas.lendacky@....com>
To:     Christoph Hellwig <hch@....de>, x86@...nel.org
Cc:     Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
        David Woodhouse <dwmw2@...radead.org>,
        Muli Ben-Yehuda <mulix@...ix.org>,
        Jon Mason <jdmason@...zu.us>, Joerg Roedel <joro@...tes.org>,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 10/14] set_memory.h: provide set_memory_{en,de}crypted
 stubs

On 3/19/2018 5:38 AM, Christoph Hellwig wrote:
> Signed-off-by: Christoph Hellwig <hch@....de>
> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>

Reviewed-by: Tom Lendacky <thomas.lendacky@....com>

> ---
>  include/linux/set_memory.h | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
> 
> diff --git a/include/linux/set_memory.h b/include/linux/set_memory.h
> index e5140648f638..da5178216da5 100644
> --- a/include/linux/set_memory.h
> +++ b/include/linux/set_memory.h
> @@ -17,4 +17,16 @@ static inline int set_memory_x(unsigned long addr,  int numpages) { return 0; }
>  static inline int set_memory_nx(unsigned long addr, int numpages) { return 0; }
>  #endif
>  
> +#ifndef CONFIG_ARCH_HAS_MEM_ENCRYPT
> +static inline int set_memory_encrypted(unsigned long addr, int numpages)
> +{
> +	return 0;
> +}
> +
> +static inline int set_memory_decrypted(unsigned long addr, int numpages)
> +{
> +	return 0;
> +}
> +#endif /* CONFIG_ARCH_HAS_MEM_ENCRYPT */
> +
>  #endif /* _LINUX_SET_MEMORY_H_ */
>