From f087335034eb03e4ac8b1d93d18fbbca842467d3 Mon Sep 17 00:00:00 2001
From: Boris Fiuczynski <fiuczy@linux.ibm.com>
Date: Fri, 4 Feb 2022 16:32:18 +0100
Subject: [PATCH] nodedev: add parent_addr to mdev nodedev dumpxml

As the parent address is part of the mdev nodedev name lets expose the
internally available parent address in the XML.

Signed-off-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
---
 docs/schemas/nodedev.rng                               | 5 +++++
 src/conf/node_device_conf.c                            | 2 ++
 tests/nodedevmdevctldata/mdevctl-list-multiple.out.xml | 5 +++++
 3 files changed, 12 insertions(+)

diff --git a/docs/schemas/nodedev.rng b/docs/schemas/nodedev.rng
index e4733f0804..0d7d1168b6 100644
--- a/docs/schemas/nodedev.rng
+++ b/docs/schemas/nodedev.rng
@@ -644,6 +644,11 @@
           <ref name="UUID"/>
         </element>
       </optional>
+      <optional>
+        <element name="parent_addr">
+          <data type="string"/>
+        </element>
+      </optional>
       <zeroOrMore>
         <element name="attr">
           <attribute name="name"/>
diff --git a/src/conf/node_device_conf.c b/src/conf/node_device_conf.c
index 0bac0fde8d..61c8715037 100644
--- a/src/conf/node_device_conf.c
+++ b/src/conf/node_device_conf.c
@@ -604,6 +604,8 @@ virNodeDeviceCapMdevDefFormat(virBuffer *buf,
 
     virBufferEscapeString(buf, "<type id='%s'/>\n", data->mdev.type);
     virBufferEscapeString(buf, "<uuid>%s</uuid>\n", data->mdev.uuid);
+    virBufferEscapeString(buf, "<parent_addr>%s</parent_addr>\n",
+                          data->mdev.parent_addr);
     virBufferAsprintf(buf, "<iommuGroup number='%u'/>\n",
                       data->mdev.iommuGroupNumber);
 
diff --git a/tests/nodedevmdevctldata/mdevctl-list-multiple.out.xml b/tests/nodedevmdevctldata/mdevctl-list-multiple.out.xml
index 4df5f4f43c..012c1a1596 100644
--- a/tests/nodedevmdevctldata/mdevctl-list-multiple.out.xml
+++ b/tests/nodedevmdevctldata/mdevctl-list-multiple.out.xml
@@ -4,6 +4,7 @@
   <capability type='mdev'>
     <type id='i915-GVTg_V5_4'/>
     <uuid>200f228a-c80a-4d50-bfb7-f5a0e4e34045</uuid>
+    <parent_addr>0000:00:02.0</parent_addr>
     <iommuGroup number='0'/>
   </capability>
 </device>
@@ -13,6 +14,7 @@
   <capability type='mdev'>
     <type id='i915-GVTg_V5_4'/>
     <uuid>de807ffc-1923-4d5f-b6c9-b20ecebc6d4b</uuid>
+    <parent_addr>0000:00:02.0</parent_addr>
     <iommuGroup number='0'/>
   </capability>
 </device>
@@ -22,6 +24,7 @@
   <capability type='mdev'>
     <type id='i915-GVTg_V5_8'/>
     <uuid>435722ea-5f43-468a-874f-da34f1217f13</uuid>
+    <parent_addr>0000:00:02.0</parent_addr>
     <iommuGroup number='0'/>
     <attr name='testattr' value='42'/>
   </capability>
@@ -32,6 +35,7 @@
   <capability type='mdev'>
     <type id='vfio_ap-passthrough'/>
     <uuid>783e6dbb-ea0e-411f-94e2-717eaad438bf</uuid>
+    <parent_addr>matrix</parent_addr>
     <iommuGroup number='0'/>
     <attr name='assign_adapter' value='5'/>
     <attr name='assign_adapter' value='6'/>
@@ -47,6 +51,7 @@
   <capability type='mdev'>
     <type id='vfio_ccw-io'/>
     <uuid>cc000052-9b13-9b13-9b13-cc23009b1326</uuid>
+    <parent_addr>0.0.0052</parent_addr>
     <iommuGroup number='0'/>
   </capability>
 </device>