From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:58773) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1capkI-0002xO-Sw for qemu-devel@nongnu.org; Mon, 06 Feb 2017 15:18:43 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1capkF-0005SC-Nx for qemu-devel@nongnu.org; Mon, 06 Feb 2017 15:18:42 -0500 Received: from mx1.redhat.com ([209.132.183.28]:48230) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1capkF-0005Ry-Fq for qemu-devel@nongnu.org; Mon, 06 Feb 2017 15:18:39 -0500 References: <9a2d2cb01e42d6e61c6198356781dbb2919aca05.1486285434.git.ben@skyportsystems.com> From: Eric Blake Message-ID: <32b79ef4-6d0f-efa5-9da9-5955c4cf39ec@redhat.com> Date: Mon, 6 Feb 2017 14:18:36 -0600 MIME-Version: 1.0 In-Reply-To: <9a2d2cb01e42d6e61c6198356781dbb2919aca05.1486285434.git.ben@skyportsystems.com> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="qAkqcjRLAJqaJtoQo9RDxxM9RnPScJxNV" Subject: Re: [Qemu-devel] [PATCH v5 03/10] docs: VM Generation ID device description List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: ben@skyportsystems.com, qemu-devel@nongnu.org Cc: Gal Hammer , imammedo@redhat.com, lersek@redhat.com, mst@redhat.com This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --qAkqcjRLAJqaJtoQo9RDxxM9RnPScJxNV From: Eric Blake To: ben@skyportsystems.com, qemu-devel@nongnu.org Cc: Gal Hammer , imammedo@redhat.com, lersek@redhat.com, mst@redhat.com Message-ID: <32b79ef4-6d0f-efa5-9da9-5955c4cf39ec@redhat.com> Subject: Re: [Qemu-devel] [PATCH v5 03/10] docs: VM Generation ID device description References: <9a2d2cb01e42d6e61c6198356781dbb2919aca05.1486285434.git.ben@skyportsystems.com> In-Reply-To: <9a2d2cb01e42d6e61c6198356781dbb2919aca05.1486285434.git.ben@skyportsystems.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On 02/05/2017 03:11 AM, ben@skyportsystems.com wrote: > From: Ben Warren >=20 > This patch is based off an earlier version by > Gal Hammer (ghammer@redhat.com) >=20 > Requirements section, ASCII diagrams and overall help > provided by Laszlo Ersek (lersek@redhat.com) >=20 > Signed-off-by: Gal Hammer > Signed-off-by: Ben Warren > --- > docs/specs/vmgenid.txt | 239 +++++++++++++++++++++++++++++++++++++++++= ++++++++ > 1 file changed, 239 insertions(+) > create mode 100644 docs/specs/vmgenid.txt >=20 > + > + > +Design Details: > +--------------- > + > +Requirements R1a through R1e dicate that the memory holding the s/dicate/dictate/ > +VM Generation ID must be allocated and owned by the guest operating sy= stem, > + > +GUID Storage Format: > +-------------------- > + > +In order to work with OVMF "SDT Header Probe Supressor", the contents = of s/Supressor/Suppressor/ > +the vmgenid fw_cfg blob are not simply a 128-bit GUID. There is also > +significant padding in order to align and fill a memory page, as shown= in the > +following diagram: > + > ++----------------------------------+ > +| SSDT with OEM Table ID =3D VMGENID | > ++----------------------------------+ > +| ... | TOP OF PAGE > +| VGIA dword object ---------------|-----> +--------------------------= -+ > +| ... | | fw-allocated array for = | > +| _STA method referring to VGIA | | "etc/vmgenid" | Inconsistent whitespace --=20 Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org --qAkqcjRLAJqaJtoQo9RDxxM9RnPScJxNV Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 Comment: Public key at http://people.redhat.com/eblake/eblake.gpg Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBCAAGBQJYmNocAAoJEKeha0olJ0NqcZ4H/2tu0PM1tn+YWvQLSOeuFBPp UZNZ+GDhWBvB94krWu1cXC4MJET/mhqaMNYsknFEWkshrLvlr3m8fBSC6YIwo2qJ 87il/IHKWiuVkkNghlCKSJ/E8/qMzaRRhFmC4Eskhvkq96OVJd5kIAXA2gCkGnPZ 1CCFPQMec+r0emymboxuuWb/Av2vOKcC6GL+CGZhe/RCio2Gg0pspg+vowvUEHap rhgz5GpNk3/koa82OppDNkg51x0GITMtJdt2EUS/J/yM+GxFA3yJ8q8zgPYhypn+ sFnDu8e24zt2S8ZqJbtqVhqFX1so6Rg74dOB074+XGvXcjsqRvQFGHHdO4GRBKw= =HF6o -----END PGP SIGNATURE----- --qAkqcjRLAJqaJtoQo9RDxxM9RnPScJxNV--