Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Message-ID: <147f68f6-7d67-1884-bd14-5040639b3396@suse.com>
Date:   Mon, 25 Apr 2022 11:14:52 +0200
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101
 Thunderbird/91.8.0
Subject: Re: [PATCH V1 3/6] xen/virtio: Add option to restrict memory access
 under Xen
Content-Language: en-US
To:     Christoph Hellwig <hch@infradead.org>
Cc:     Oleksandr <olekstysh@gmail.com>, xen-devel@lists.xenproject.org,
        x86@kernel.org, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        Dave Hansen <dave.hansen@linux.intel.com>,
        Andy Lutomirski <luto@kernel.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
        "H. Peter Anvin" <hpa@zytor.com>,
        Boris Ostrovsky <boris.ostrovsky@oracle.com>,
        Stefano Stabellini <sstabellini@kernel.org>,
        Julien Grall <julien@xen.org>,
        Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>,
        "Michael S. Tsirkin" <mst@redhat.com>,
        Tom Lendacky <thomas.lendacky@amd.com>
References: <1650646263-22047-1-git-send-email-olekstysh@gmail.com>
 <1650646263-22047-4-git-send-email-olekstysh@gmail.com>
 <YmQsFb36UEH9BUnN@infradead.org>
 <6c5042fe-dafc-eb4f-c1fa-03b0faf252de@gmail.com>
 <abc5d23d-3d38-d198-4646-e886df2e83d4@suse.com>
 <YmZUpua3hkCPdbfx@infradead.org>
From:   Juergen Gross <jgross@suse.com>
In-Reply-To: <YmZUpua3hkCPdbfx@infradead.org>
Content-Type: multipart/signed; micalg=pgp-sha256;
 protocol="application/pgp-signature";
 boundary="------------3cKMf0pMZzCdnbR0F91OT6d3"
Precedence: bulk

This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--------------3cKMf0pMZzCdnbR0F91OT6d3
Content-Type: multipart/mixed; boundary="------------6LRm3VWi03bXvVqBYjAyZb1V";
 protected-headers="v1"
From: Juergen Gross <jgross@suse.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: Oleksandr <olekstysh@gmail.com>, xen-devel@lists.xenproject.org,
 x86@kernel.org, linux-kernel@vger.kernel.org,
 linux-arm-kernel@lists.infradead.org,
 Dave Hansen <dave.hansen@linux.intel.com>, Andy Lutomirski
 <luto@kernel.org>, Peter Zijlstra <peterz@infradead.org>,
 Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>,
 Borislav Petkov <bp@alien8.de>, "H. Peter Anvin" <hpa@zytor.com>,
 Boris Ostrovsky <boris.ostrovsky@oracle.com>,
 Stefano Stabellini <sstabellini@kernel.org>, Julien Grall <julien@xen.org>,
 Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>,
 "Michael S. Tsirkin" <mst@redhat.com>, Tom Lendacky <thomas.lendacky@amd.com>
Message-ID: <147f68f6-7d67-1884-bd14-5040639b3396@suse.com>
Subject: Re: [PATCH V1 3/6] xen/virtio: Add option to restrict memory access
 under Xen
References: <1650646263-22047-1-git-send-email-olekstysh@gmail.com>
 <1650646263-22047-4-git-send-email-olekstysh@gmail.com>
 <YmQsFb36UEH9BUnN@infradead.org>
 <6c5042fe-dafc-eb4f-c1fa-03b0faf252de@gmail.com>
 <abc5d23d-3d38-d198-4646-e886df2e83d4@suse.com>
 <YmZUpua3hkCPdbfx@infradead.org>
In-Reply-To: <YmZUpua3hkCPdbfx@infradead.org>

--------------6LRm3VWi03bXvVqBYjAyZb1V
Content-Type: multipart/mixed; boundary="------------tzkTspFuEKkqBFjbFcKiNoA0"

--------------tzkTspFuEKkqBFjbFcKiNoA0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: base64
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--------------tzkTspFuEKkqBFjbFcKiNoA0
Content-Type: application/pgp-keys; name="OpenPGP_0xB0DE9DD628BF132F.asc"
Content-Disposition: attachment; filename="OpenPGP_0xB0DE9DD628BF132F.asc"
Content-Description: OpenPGP public key
Content-Transfer-Encoding: quoted-printable

-----BEGIN PGP PUBLIC KEY BLOCK-----
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3D
=3D2wuH
-----END PGP PUBLIC KEY BLOCK-----

--------------tzkTspFuEKkqBFjbFcKiNoA0--

--------------6LRm3VWi03bXvVqBYjAyZb1V--

--------------3cKMf0pMZzCdnbR0F91OT6d3
Content-Type: application/pgp-signature; name="OpenPGP_signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="OpenPGP_signature"

-----BEGIN PGP SIGNATURE-----

wsB5BAABCAAjFiEEhRJncuj2BJSl0Jf3sN6d1ii/Ey8FAmJmZowFAwAAAAAACgkQsN6d1ii/Ey8r
Ygf/aV/NKOLaArzKrc86hrkP0XV0aIShnHg523LWf4xHhGIQoD8EwkxH45JF86R/MrJs5yfUdyI6
PgLkrQNEPgCKihyoixiBjx4eI3R/lDOcBx7gRpTi2G8TglEHFITlmYeMBVsqg1h614i9G1QkpkK1
ArMDXd3b32jTEnMfRInQ471aXXPsFOmXlFCONHt+K459knDStRY8OP605tSv+cTJj5xBU792ZcDe
NdI+1IP/zdKALsV3FS9eoWdtW9NQ1MWZXJNlyhBYqKdW1AFD7JUFmVe6mnfKfKLRs4bwKRQCGbkk
hHA9RkQLqdnAGyc8UTEMJt5LWU2aYelXSmyMmis2cQ==
=rdmV
-----END PGP SIGNATURE-----

--------------3cKMf0pMZzCdnbR0F91OT6d3--