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Subject: Re: [PATCH v2 02/12] mm: Introduce a function to check for
 virtualization protection features
To:     Christoph Hellwig <hch@infradead.org>
Cc:     linux-kernel@vger.kernel.org, x86@kernel.org,
        linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org,
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        Sathyanarayanan Kuppuswamy 
        <sathyanarayanan.kuppuswamy@linux.intel.com>,
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References: <cover.1628873970.git.thomas.lendacky@amd.com>
 <482fe51f1671c1cd081039801b03db7ec0036332.1628873970.git.thomas.lendacky@amd.com>
 <YR4ohWC4/cLsuCvv@infradead.org>
From:   Tom Lendacky <thomas.lendacky@amd.com>
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Date:   Thu, 19 Aug 2021 11:39:57 -0500
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On 8/19/21 4:46 AM, Christoph Hellwig wrote:
> On Fri, Aug 13, 2021 at 11:59:21AM -0500, Tom Lendacky wrote:
>> +#define PATTR_MEM_ENCRYPT		0	/* Encrypted memory */
>> +#define PATTR_HOST_MEM_ENCRYPT		1	/* Host encrypted memory */
>> +#define PATTR_GUEST_MEM_ENCRYPT		2	/* Guest encrypted memory */
>> +#define PATTR_GUEST_PROT_STATE		3	/* Guest encrypted state */
> 
> Please write an actual detailed explanaton of what these mean, that
> is what implications it has on the kernel.

Will do.

Thanks,
Tom

>