[vTPM] Add set/get_other_config to Xen-API.

Add get_- and set_other_config methods to the vTPM class. Write the
parameters into the xenstore while the domain is running prefixing it
with 'oc_'. Also I add the methods to the C library as well as the
documentation.

Signed-off-by: Stefan Berger <stefanb@us.ibm.com>

2 files changed, 59 insertions, 1 deletions

diff --git a/tools/libxen/include/xen/api/xen_vtpm.h b/tools/libxen/include/xen/api/xen_vtpm.h
index 920948d134..9b3b2ebd88 100644
--- a/tools/libxen/include/xen/api/xen_vtpm.h
+++ b/tools/libxen/include/xen/api/xen_vtpm.h
@@ -66,6 +66,7 @@ typedef struct xen_vtpm_record
     char *uuid;
     struct xen_vm_record_opt *vm;
     struct xen_vm_record_opt *backend;
+    xen_string_string_map *other_config;
 } xen_vtpm_record;
 
 /**
@@ -196,4 +197,22 @@ extern bool
 xen_vtpm_get_backend(xen_session *session, xen_vm *result, xen_vtpm vtpm);
 
 
+/**
+ * Get the other_config field of the given VTPM.
+ */
+extern bool
+xen_vtpm_get_other_config(xen_session *session,
+                          xen_string_string_map **result,
+                          xen_vtpm vtpm);
+
+
+/**
+ * Set the other_config field of the given VTPM.
+ */
+extern bool
+xen_vtpm_set_other_config(xen_session *session,
+                          xen_vtpm vtpm,
+                          xen_string_string_map *other_config);
+
+
 #endif
diff --git a/tools/libxen/src/xen_vtpm.c b/tools/libxen/src/xen_vtpm.c
index 5ed3692234..0ca7b41965 100644
--- a/tools/libxen/src/xen_vtpm.c
+++ b/tools/libxen/src/xen_vtpm.c
@@ -46,7 +46,10 @@ static const struct_member xen_vtpm_record_struct_members[] =
           .offset = offsetof(xen_vtpm_record, vm) },
         { .key = "backend",
           .type = &abstract_type_ref,
-          .offset = offsetof(xen_vtpm_record, backend) }
+          .offset = offsetof(xen_vtpm_record, backend) },
+        { .key = "other_config",
+          .type = &abstract_type_string_string_map,
+          .offset = offsetof(xen_vtpm_record, other_config) }
     };
 
 const abstract_type xen_vtpm_record_abstract_type_ =
@@ -70,6 +73,7 @@ xen_vtpm_record_free(xen_vtpm_record *record)
     free(record->uuid);
     xen_vm_record_opt_free(record->vm);
     xen_vm_record_opt_free(record->backend);
+    xen_string_string_map_free(record->other_config);
     free(record);
 }
 
@@ -194,3 +198,38 @@ xen_vtpm_get_uuid(xen_session *session, char **result, xen_vtpm vtpm)
     XEN_CALL_("VTPM.get_uuid");
     return session->ok;
 }
+
+
+bool
+xen_vtpm_get_other_config(xen_session *session, xen_string_string_map **result,
+                          xen_vtpm vtpm)
+{
+    abstract_value param_values[] =
+        {
+            { .type = &abstract_type_string,
+              .u.string_val = vtpm }
+        };
+
+    abstract_type result_type = abstract_type_string_string_map;
+
+    *result = NULL;
+    XEN_CALL_("VTPM.get_other_config");
+    return session->ok;
+}
+
+
+bool
+xen_vtpm_set_other_config(xen_session *session, xen_vtpm vtpm,
+                          xen_string_string_map *other_config)
+{
+    abstract_value param_values[] =
+        {
+            { .type = &abstract_type_string,
+              .u.string_val = vtpm },
+            { .type = &abstract_type_string_string_map,
+              .u.set_val = (arbitrary_set *)other_config }
+        };
+
+    xen_call_(session, "VTPM.set_other_config", param_values, 2, NULL, NULL);
+    return session->ok;
+}