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CY1PR12MB0152; 20:7hD7eSRtQHcmXKzXUQIP8GecTTznowy603k3hqgo0x+rSfD2oAKwr6ivGrp5lTt+NRczv3UhZ54QiWRuH+E0fm01DkKaR1EJQECOM1EbJ8Gux5bEDMovWVnECq6W7Ts/6oS9WCpIj95KHPRs1/FPMB4clfUDlnJx/pDZ1/Rq5/rspM1vrHTK1FPgz0yBWkMvwGqcwakNzuBdccnVgRBFBQW3/CaA0g//PkUpPul/bTtSE982cIlvMHDyAXsxrZB/ X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Feb 2018 16:07:34.2287 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 4538a326-ae41-4eb2-9b36-08d56e44e6ca X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY1PR12MB0152 X-detected-operating-system: by eggs.gnu.org: Windows 7 or 8 [fuzzy] X-Received-From: 104.47.38.49 Subject: [Qemu-devel] [PATCH v7 26/26] qmp: add query-sev-launch-measure command X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Edgar E. Iglesias" , Peter Maydell , Eduardo Habkost , kvm@vger.kernel.org, "Michael S. Tsirkin" , Marcel Apfelbaum , Markus Armbruster , Peter Crosthwaite , Richard Henderson , "Dr. David Alan Gilbert" , Alistair Francis , Christian Borntraeger , Brijesh Singh , Stefan Hajnoczi , Cornelia Huck , Paolo Bonzini , Thomas Lendacky , Borislav Petkov Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" 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. Berrangé" Cc: "Dr. David Alan Gilbert" Cc: Markus Armbruster Signed-off-by: Brijesh Singh --- qapi-schema.json | 30 ++++++++++++++++++++++++++++++ qmp.c | 14 ++++++++++++++ 2 files changed, 44 insertions(+) diff --git a/qapi-schema.json b/qapi-schema.json index 447ebb15266e..19331bff8883 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -3236,3 +3236,33 @@ # ## { 'command': 'query-sev', 'returns': 'SevInfo' } + +## +# @SevLaunchMeasureInfo: +# +# SEV Guest Launch measurement information +# +# @data: the measurement value encoded in base64 +# +# Since: 2.12 +# +# Notes: If measurement is not available then a null measurement is returned. +## +{ '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 1a5cfad09dd0..5fb19b9d0db3 100644 --- a/qmp.c +++ b/qmp.c @@ -733,3 +733,17 @@ SevInfo *qmp_query_sev(Error **errp) return info; } + +SevLaunchMeasureInfo *qmp_query_sev_launch_measure(Error **errp) +{ + SevLaunchMeasureInfo *info = NULL; + + if (sev_enabled()) { + info = g_malloc0(sizeof(*info)); + info->data = sev_get_launch_measurement(); + } else { + error_setg(errp, "SEV is not enabled"); + } + + return info; +}