From mboxrd@z Thu Jan 1 00:00:00 1970 From: Brijesh Singh Subject: [PATCH v9 26/29] qmp: add query-sev-launch-measure command Date: Thu, 15 Feb 2018 09:39:52 -0600 Message-ID: <20180215153955.3253-27-brijesh.singh@amd.com> References: <20180215153955.3253-1-brijesh.singh@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Cc: Peter Maydell , Brijesh Singh , kvm@vger.kernel.org, "Michael S. Tsirkin" , Stefan Hajnoczi , Alexander Graf , "Edgar E. Iglesias" , Markus Armbruster , Bruce Rogers , Christian Borntraeger , Marcel Apfelbaum , Borislav Petkov , Thomas Lendacky , Eduardo Habkost , Richard Henderson , "Dr. David Alan Gilbert" , Alistair Francis , Cornelia Huck , Peter Crosthwaite , Paolo Bonzini To: qemu-devel@nongnu.org Return-path: In-Reply-To: <20180215153955.3253-1-brijesh.singh@amd.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+gceq-qemu-devel2=m.gmane.org@nongnu.org Sender: "Qemu-devel" List-Id: kvm.vger.kernel.org The command can be used by libvirt to retrieve the measurement of SEV guest= . This measurement is a signature of the memory contents that was encrypted through the LAUNCH_UPDATE_DATA. Cc: "Daniel P. Berrang=C3=A9" Cc: "Dr. David Alan Gilbert" Cc: Markus Armbruster Signed-off-by: Brijesh Singh --- qapi-schema.json | 29 +++++++++++++++++++++++++++++ qmp.c | 17 +++++++++++++++++ 2 files changed, 46 insertions(+) diff --git a/qapi-schema.json b/qapi-schema.json index 46f7a3c9ea83..1ae45a908369 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -3246,3 +3246,32 @@ # ## { 'command': 'query-sev', 'returns': 'SevInfo' } + +## +# @SevLaunchMeasureInfo: +# +# SEV Guest Launch measurement information +# +# @data: the measurement value encoded in base64 +# +# Since: 2.12 +# +## +{ 'struct': 'SevLaunchMeasureInfo', 'data': {'data': 'str'} } + +## +# @query-sev-launch-measure: +# +# Query the SEV guest launch information. +# +# Returns: The @SevLaunchMeasureInfo for the guest +# +# Since: 2.12 +# +# Example: +# +# -> { "execute": "query-sev-launch-measure" } +# <- { "return": { "data": "4l8LXeNlSPUDlXPJG5966/8%YZ" } } +# +## +{ 'command': 'query-sev-launch-measure', 'returns': 'SevLaunchMeasureInfo'= } diff --git a/qmp.c b/qmp.c index 6860ae9ad6ea..7253720a2092 100644 --- a/qmp.c +++ b/qmp.c @@ -735,3 +735,20 @@ SevInfo *qmp_query_sev(Error **errp) =20 return info; } + +SevLaunchMeasureInfo *qmp_query_sev_launch_measure(Error **errp) +{ + char *data; + SevLaunchMeasureInfo *info; + + data =3D sev_get_launch_measurement(); + if (!data) { + error_setg(errp, "Measurement is not available"); + return NULL; + } + + info =3D g_malloc0(sizeof(*info)); + info->data =3D data; + + return info; +} --=20 2.14.3