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Subject: Re: [PATCH v6 11/18] nitro_enclaves: Add logic for setting an enclave
 memory region
To:     Andra Paraschiv <andraprs@amazon.com>,
        linux-kernel <linux-kernel@vger.kernel.org>
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References: <20200805091017.86203-1-andraprs@amazon.com>
 <20200805091017.86203-12-andraprs@amazon.com>
From:   Alexander Graf <graf@amazon.de>
Message-ID: <76b87d46-88b6-4c00-4ac7-27e5be020a57@amazon.de>
Date:   Mon, 10 Aug 2020 11:54:27 +0200
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On 05.08.20 11:10, Andra Paraschiv wrote:
> Another resource that is being set for an enclave is memory. User space
> memory regions, that need to be backed by contiguous memory regions,
> are associated with the enclave.
> =

> One solution for allocating / reserving contiguous memory regions, that
> is used for integration, is hugetlbfs. The user space process that is
> associated with the enclave passes to the driver these memory regions.
> =

> The enclave memory regions need to be from the same NUMA node as the
> enclave CPUs.
> =

> Add ioctl command logic for setting user space memory region for an
> enclave.
> =

> Signed-off-by: Alexandru Vasile <lexnv@amazon.com>
> Signed-off-by: Andra Paraschiv <andraprs@amazon.com>

Reviewed-by: Alexander Graf <graf@amazon.com>


Alex


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