10:44 a.m.
The API can be used outside the libvirt to get the launch security
information. When SEV is enabled, the API can be used to get the
measurement of the launch process.
Signed-off-by: Brijesh Singh <brijesh.singh(a)amd.com>
---
include/libvirt/libvirt-domain.h | 17 ++++++++++++++
src/driver-hypervisor.h | 7 ++++++
src/libvirt-domain.c | 48 ++++++++++++++++++++++++++++++++++++++++
src/libvirt_public.syms | 5 +++++
4 files changed, 77 insertions(+)
diff --git a/include/libvirt/libvirt-domain.h b/include/libvirt/libvirt-domain.h
index 4128d5585255..733c4109549c 100644
--- a/include/libvirt/libvirt-domain.h
+++ b/include/libvirt/libvirt-domain.h
@@ -4763,4 +4763,21 @@ int virDomainSetLifecycleAction(virDomainPtr domain,
unsigned int action,
unsigned int flags);
+/**
+ * Launch Security API
+ */
+
+/**
+ * VIR_DOMAIN_LAUNCH_SECURITY_SEV_MEASUREMENT:
+ *
+ * Macro represents the launch measurement of the SEV guest,
+ * as VIR_TYPED_PARAM_STRING.
+ */
+#define VIR_DOMAIN_LAUNCH_SECURITY_SEV_MEASUREMENT "sev-measurement"
+
+int virDomainGetLaunchSecurityInfo(virDomainPtr domain,
+ virTypedParameterPtr *params,
+ int *nparams,
+ unsigned int flags);
+
#endif /* __VIR_LIBVIRT_DOMAIN_H__ */
diff --git a/src/driver-hypervisor.h b/src/driver-hypervisor.h
index ce0e2b252552..b06641394db9 100644
--- a/src/driver-hypervisor.h
+++ b/src/driver-hypervisor.h
@@ -1283,6 +1283,12 @@ typedef int
unsigned int action,
unsigned int flags);
+typedef int
+(*virDrvDomainGetLaunchSecurityInfo)(virDomainPtr domain,
+ virTypedParameterPtr *params,
+ int *nparams,
+ unsigned int flags);
+
typedef struct _virHypervisorDriver virHypervisorDriver;
typedef virHypervisorDriver *virHypervisorDriverPtr;
@@ -1528,6 +1534,7 @@ struct _virHypervisorDriver {
virDrvDomainSetVcpu domainSetVcpu;
virDrvDomainSetBlockThreshold domainSetBlockThreshold;
virDrvDomainSetLifecycleAction domainSetLifecycleAction;
+ virDrvDomainGetLaunchSecurityInfo domainGetLaunchSecurityInfo;
};
diff --git a/src/libvirt-domain.c b/src/libvirt-domain.c
index eaec0979ad49..71a43b0c2c75 100644
--- a/src/libvirt-domain.c
+++ b/src/libvirt-domain.c
@@ -12095,3 +12095,51 @@ int virDomainSetLifecycleAction(virDomainPtr domain,
virDispatchError(domain->conn);
return -1;
}
+
+/**
+ * virDomainGetLaunchSecurityInfo:
+ * @domain: a domain object
+ * @params: where to store security info
+ * @nparams: number of items in @params
+ * @flags: currently used, set to 0.
+ *
+ * Get the launch security info. In case of the SEV guest, this will
+ * return the launch measurement.
+ *
+ * Returns -1 in case of failure, 0 in case of success.
+ */
+int virDomainGetLaunchSecurityInfo(virDomainPtr domain,
+ virTypedParameterPtr *params,
+ int *nparams,
+ unsigned int flags)
+{
+ virConnectPtr conn = domain->conn;
+
+ VIR_DOMAIN_DEBUG(domain, "params=%p, nparams=%p flags=0x%x",
+ params, nparams, flags);
+
+ virResetLastError();
+
+ virCheckDomainReturn(domain, -1);
+ virCheckNonNullArgGoto(params, error);
+ virCheckNonNullArgGoto(nparams, error);
+ virCheckReadOnlyGoto(conn->flags, error);
+
+ if (VIR_DRV_SUPPORTS_FEATURE(domain->conn->driver, domain->conn,
+ VIR_DRV_FEATURE_TYPED_PARAM_STRING))
+ flags |= VIR_TYPED_PARAM_STRING_OKAY;
+
+ if (conn->driver->domainGetLaunchSecurityInfo) {
+ int ret;
+ ret = conn->driver->domainGetLaunchSecurityInfo(domain, params,
+ nparams, flags);
+ if (ret < 0)
+ goto error;
+ return ret;
+ }
+ virReportUnsupportedError();
+
+ error:
+ virDispatchError(domain->conn);
+ return -1;
+}
diff --git a/src/libvirt_public.syms b/src/libvirt_public.syms
index 95df3a0dbc7b..caba2862d371 100644
--- a/src/libvirt_public.syms
+++ b/src/libvirt_public.syms
@@ -785,4 +785,9 @@ LIBVIRT_4.1.0 {
virStoragePoolLookupByTargetPath;
} LIBVIRT_3.9.0;
+LIBVIRT_4.2.0 {
+ global:
+ virDomainGetLaunchSecurityInfo;
+} LIBVIRT_4.1.0;
+
# .... define new API here using predicted next version number ....
--
2.14.3