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SN1PR12MB0157; 20:OkjuvSJyv9rSDvDbV50woyQT1hUufdFoNacZnOmo51jerc/bDZ1kWIbBphH815+9WDPa9yFDBX25p4XXjiIgfhCoMD/Gk/iD2uaxS2BXCabOQTL5NEM8hA/ncnCSqMgI2v6MtmICeO37/iP3ecz8kISTxh/nnK3SgD7pyYBaisBwCy/cPxHgMulFOTg7VFcpW1WSXUFxoxf6eJ26wG6woYkpjHqu7RZtZzI4PqAUDnaeUfVHbK7Y4ExsfK8XrhbS X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Feb 2018 15:41:11.3066 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 0a228599-c245-44a3-c6d5-08d5748a8b02 X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN1PR12MB0157 X-detected-operating-system: by eggs.gnu.org: Windows 7 or 8 [fuzzy] X-Received-From: 104.47.33.47 Subject: [Qemu-devel] [PATCH v9 26/29] 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: 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 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 | 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) return info; } + +SevLaunchMeasureInfo *qmp_query_sev_launch_measure(Error **errp) +{ + char *data; + SevLaunchMeasureInfo *info; + + data = sev_get_launch_measurement(); + if (!data) { + error_setg(errp, "Measurement is not available"); + return NULL; + } + + info = g_malloc0(sizeof(*info)); + info->data = data; + + return info; +}