[libvirt] [PATCH v1 1/4] conf: add xen type for channels

[Joao Martins]

So far only guestfwd and virtio were supported. Add an additional
for Xen as libxl channels create Xen console visible to the guest.

Signed-off-by: Joao Martins <joao.m.martins at oracle.com>
---
 docs/schemas/domaincommon.rng | 11 +++++++++++
 src/conf/domain_conf.c        | 18 ++++++++++++++----
 src/conf/domain_conf.h        |  1 +
 src/qemu/qemu_command.c       |  1 +
 4 files changed, 27 insertions(+), 4 deletions(-)

diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng
index 8aaa67e..5901452 100644
--- a/docs/schemas/domaincommon.rng
+++ b/docs/schemas/domaincommon.rng
@@ -3686,6 +3686,16 @@
       </optional>
     </element>
   </define>
+  <define name="xenTarget">
+    <element name="target">
+      <attribute name="type">
+        <value>xen</value>
+      </attribute>
+      <optional>
+        <attribute name="name"/>
+      </optional>
+    </element>
+  </define>
   <define name="channel">
     <element name="channel">
       <ref name="qemucdevSrcType"/>
@@ -3694,6 +3704,7 @@
         <choice>
           <ref name="guestfwdTarget"/>
           <ref name="virtioTarget"/>
+          <ref name="xenTarget"/>
         </choice>
         <optional>
           <ref name="alias"/>
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 0828041..196799d 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -434,7 +434,8 @@ VIR_ENUM_IMPL(virDomainChrChannelTarget,
               VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_LAST,
               "none",
               "guestfwd",
-              "virtio")
+              "virtio",
+              "xen")
 
 VIR_ENUM_IMPL(virDomainChrConsoleTarget,
               VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_LAST,
@@ -2068,6 +2069,7 @@ void virDomainChrDefFree(virDomainChrDefPtr def)
             VIR_FREE(def->target.addr);
             break;
 
+        case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_XEN:
         case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_VIRTIO:
             VIR_FREE(def->target.name);
             break;
@@ -9877,10 +9879,12 @@ virDomainChrDefParseTargetXML(virDomainChrDefPtr def,
             virSocketAddrSetPort(def->target.addr, port);
             break;
 
+        case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_XEN:
         case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_VIRTIO:
             def->target.name = virXMLPropString(cur, "name");
 
-            if (!(flags & VIR_DOMAIN_DEF_PARSE_INACTIVE) &&
+            if (def->targetType == VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_VIRTIO &&
+                !(flags & VIR_DOMAIN_DEF_PARSE_INACTIVE) &&
                 (stateStr = virXMLPropString(cur, "state"))) {
                 int tmp;
 
@@ -10171,7 +10175,8 @@ virDomainChrSourceDefParseXML(virDomainChrSourceDefPtr def,
         /* path can be auto generated */
         if (!path &&
             (!chr_def ||
-             chr_def->targetType != VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_VIRTIO)) {
+             (chr_def->targetType != VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_XEN &&
+              chr_def->targetType != VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_VIRTIO))) {
             virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                            _("Missing source path attribute for char device"));
             goto error;
@@ -14373,6 +14378,7 @@ virDomainChrEquals(virDomainChrDefPtr src,
         if (src->targetType != tgt->targetType)
             return false;
         switch ((virDomainChrChannelTargetType) src->targetType) {
+        case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_XEN:
         case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_VIRTIO:
             return STREQ_NULLABLE(src->target.name, tgt->target.name);
             break;
@@ -18310,6 +18316,8 @@ virDomainChannelDefCheckABIStability(virDomainChrDefPtr src,
     }
 
     switch (src->targetType) {
+
+    case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_XEN:
     case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_VIRTIO:
         if (STRNEQ_NULLABLE(src->target.name, dst->target.name)) {
             virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
@@ -21432,11 +21440,13 @@ virDomainChrDefFormat(virBufferPtr buf,
             break;
         }
 
+        case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_XEN:
         case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_VIRTIO:
             if (def->target.name)
                 virBufferEscapeString(buf, " name='%s'", def->target.name);
 
-            if (def->state != VIR_DOMAIN_CHR_DEVICE_STATE_DEFAULT &&
+            if (def->targetType == VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_VIRTIO &&
+                def->state != VIR_DOMAIN_CHR_DEVICE_STATE_DEFAULT &&
                 !(flags & VIR_DOMAIN_DEF_PARSE_INACTIVE)) {
                 virBufferAsprintf(buf, " state='%s'",
                                   virDomainChrDeviceStateTypeToString(def->state));
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index c14a39c..b91b18d 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -1021,6 +1021,7 @@ typedef enum {
     VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_NONE = 0,
     VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_GUESTFWD,
     VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_VIRTIO,
+    VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_XEN,
 
     VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_LAST
 } virDomainChrChannelTargetType;
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 3a61863..89cc559 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -9855,6 +9855,7 @@ qemuBuildChannelChrDeviceStr(char **deviceStr,
             goto cleanup;
         break;
 
+    case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_XEN:
     case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_NONE:
     case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_LAST:
         return ret;
-- 
2.1.4