[libvirt] [PATCHv3] qemu: Redundant listen address entry in quest xml

[Erik Skultety]

When editing guest's XML (on QEMU), it was possible to add multiple
listen elements into graphics parent element. However QEMU does not
support listening on multiple addresses. Configuration is tested for
multiple 'listen address' and if positive, an error is raised.
---
 src/qemu/qemu_process.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 52d9052..f3a6af5 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -3950,6 +3950,11 @@ int qemuProcessStart(virConnectPtr conn,
                     goto cleanup;
                 }
                 graphics->listens[0].fromConfig = true;
+            } else if (graphics->nListens > 1) {
+                virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                               _("QEMU does not support multiple listen "
+                                 "addresses for one graphics device."));
+                goto cleanup;
             }
         }
     }
-- 
1.9.3