[PATCH v3 1/2] qemu: output error when try to hotplug unsupport console

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https://bugzilla.redhat.com/show_bug.cgi?id=1164627

When using 'virsh attach-device' to hotplug an unsupported console type
into a qemu guest, the attachment will erroneously allows the
attachment. This patch will check to ensure that only the support target
types are used for a running guest. NB, Although a guest can be defined
with an improper target, startup will cause failure.

Signed-off-by: Luyao Huang <lhuang@xxxxxxxxxx>
---
 src/qemu/qemu_command.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index c041ee7..df87e1e 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -10067,13 +10067,17 @@ qemuBuildConsoleChrDeviceStr(char **deviceStr,
         break;
 
     case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SERIAL:
+        break;
     case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_NONE:
     case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_XEN:
     case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_UML:
     case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_LXC:
     case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_OPENVZ:
     case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_LAST:
-        break;
+        virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+                       _("unsupported console target type %s"),
+                       NULLSTR(virDomainChrConsoleTargetTypeToString(chr->targetType)));
+        goto cleanup;
     }
 
     ret = 0;
-- 
1.8.3.1

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