84 lines
2.2 KiB
Diff
84 lines
2.2 KiB
Diff
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From 49a869039c960dbc02e6bbee9d0f0d0ce39003d5 Mon Sep 17 00:00:00 2001
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From: Brijesh Singh <brijesh.singh@amd.com>
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Date: Tue, 6 Feb 2018 19:08:11 -0600
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Subject: [PATCH] qmp: add query-sev-launch-measure command
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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The command can be used by libvirt to retrieve the measurement of SEV guest.
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This measurement is a signature of the memory contents that was encrypted
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through the LAUNCH_UPDATE_DATA.
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Cc: "Daniel P. Berrangé" <berrange@redhat.com>
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Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
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Cc: Markus Armbruster <armbru@redhat.com>
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Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
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[BR: FATE#322124]
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Signed-off-by: Bruce Rogers <brogers@suse.com>
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---
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qapi-schema.json | 30 ++++++++++++++++++++++++++++++
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qmp.c | 14 ++++++++++++++
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2 files changed, 44 insertions(+)
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diff --git a/qapi-schema.json b/qapi-schema.json
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index 40c2de3026..8ab8e74956 100644
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--- a/qapi-schema.json
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+++ b/qapi-schema.json
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@@ -3247,3 +3247,33 @@
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#
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##
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{ 'command': 'query-sev', 'returns': 'SevInfo' }
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+
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+##
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+# @SevLaunchMeasureInfo:
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+#
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+# SEV Guest Launch measurement information
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+#
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+# @data: the measurement value encoded in base64
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+#
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+# Since: 2.12
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+#
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+# Notes: If measurement is not available then a null measurement is returned.
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+##
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+{ 'struct': 'SevLaunchMeasureInfo', 'data': {'data': 'str'} }
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+
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+##
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+# @query-sev-launch-measure:
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+#
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+# Query the SEV guest launch information.
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+#
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+# Returns: The @SevLaunchMeasureInfo for the guest
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+#
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+# Since: 2.12
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+#
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+# Example:
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+#
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+# -> { "execute": "query-sev-launch-measure" }
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+# <- { "return": { "data": "4l8LXeNlSPUDlXPJG5966/8%YZ" } }
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+#
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+##
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+{ 'command': 'query-sev-launch-measure', 'returns': 'SevLaunchMeasureInfo' }
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diff --git a/qmp.c b/qmp.c
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index 4cd01ea666..d9ec4bf18e 100644
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--- a/qmp.c
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+++ b/qmp.c
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@@ -738,3 +738,17 @@ SevInfo *qmp_query_sev(Error **errp)
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return info;
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}
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+
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+SevLaunchMeasureInfo *qmp_query_sev_launch_measure(Error **errp)
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+{
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+ SevLaunchMeasureInfo *info = NULL;
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+
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+ if (sev_enabled()) {
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+ info = g_malloc0(sizeof(*info));
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+ info->data = sev_get_launch_measurement();
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+ } else {
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+ error_setg(errp, "SEV is not enabled");
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+ }
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+
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+ return info;
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+}
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