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[libvirt] [PATCH 32/34] Pass -vga none if no video card specified



QEMU always configures a VGA card. If no video card is included in
the libvirt XML, it is neccessary to explicitly turn off the default
using -vga none

* src/qemu/qemu_conf.c: Pass -vga none if no video card is configured
* tests/qemuargv2xmltest.c, tests/qemuxml2argvtest.c: Test for
  handling -vga none.
* tests/qemuxml2argvdata/qemuxml2argv-nographics-vga.args,
  tests/qemuxml2argvdata/qemuxml2argv-nographics-vga.xml: Test
  data files
---
 src/qemu/qemu_conf.c                               |   25 +++++++++++++------
 tests/qemuargv2xmltest.c                           |    1 +
 .../qemuxml2argv-nographics-vga.args               |    1 +
 .../qemuxml2argv-nographics-vga.xml                |   24 +++++++++++++++++++
 tests/qemuxml2argvtest.c                           |    1 +
 5 files changed, 44 insertions(+), 8 deletions(-)
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-nographics-vga.args
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-nographics-vga.xml

diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
index b87b170..bb6e90f 100644
--- a/src/qemu/qemu_conf.c
+++ b/src/qemu/qemu_conf.c
@@ -89,8 +89,8 @@ VIR_ENUM_IMPL(qemuVideo, VIR_DOMAIN_VIDEO_TYPE_LAST,
               "std",
               "cirrus",
               "vmware",
-              NULL, /* no arg needed for xen */
-              NULL /* don't support vbox */);
+              "", /* no arg needed for xen */
+              "" /* don't support vbox */);
 
 #define PROC_MOUNT_BUF_LEN 255
 
@@ -3447,7 +3447,7 @@ int qemudBuildCommandLine(virConnectPtr conn,
                 /* nothing - vga has no effect on Xen pvfb */
             } else {
                 const char *vgastr = qemuVideoTypeToString(def->videos[0]->type);
-                if (!vgastr) {
+                if (!vgastr || STREQ(vgastr, "")) {
                     qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                                      _("video type %s is not supported with QEMU"),
                                      virDomainVideoTypeToString(def->videos[0]->type));
@@ -3480,6 +3480,13 @@ int qemudBuildCommandLine(virConnectPtr conn,
                 goto error;
             }
         }
+    } else {
+        /* If we have -device, then we set -nodefault already */
+        if (!(qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE) &&
+            (qemuCmdFlags & QEMUD_CMD_FLAG_VGA)) {
+            ADD_ARG_LIT("-vga");
+            ADD_ARG_LIT("none");
+        }
     }
 
     /* Add sound hardware */
@@ -5017,11 +5024,13 @@ virDomainDefPtr qemuParseCommandLine(virConnectPtr conn,
             video = VIR_DOMAIN_VIDEO_TYPE_VGA;
         } else if (STREQ(arg, "-vga")) {
             WANT_VALUE();
-            video = qemuVideoTypeFromString(val);
-            if (video < 0) {
-                qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
-                                 _("unknown video adapter type '%s'"), val);
-                goto error;
+            if (STRNEQ(val, "none")) {
+                video = qemuVideoTypeFromString(val);
+                if (video < 0) {
+                    qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
+                                     _("unknown video adapter type '%s'"), val);
+                    goto error;
+                }
             }
         } else if (STREQ(arg, "-cpu")) {
             WANT_VALUE();
diff --git a/tests/qemuargv2xmltest.c b/tests/qemuargv2xmltest.c
index 7f62bac..8326c57 100644
--- a/tests/qemuargv2xmltest.c
+++ b/tests/qemuargv2xmltest.c
@@ -185,6 +185,7 @@ mymain(int argc, char **argv)
 
     DO_TEST("graphics-sdl", 0);
     DO_TEST("graphics-sdl-fullscreen", 0);
+    DO_TEST("nographics-vga", QEMUD_CMD_FLAG_VGA);
     DO_TEST("input-usbmouse", 0);
     DO_TEST("input-usbtablet", 0);
     /* Can't rountrip xenner arch */
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-nographics-vga.args b/tests/qemuxml2argvdata/qemuxml2argv-nographics-vga.args
new file mode 100644
index 0000000..b8f10bb
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-nographics-vga.args
@@ -0,0 +1 @@
+LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M pc -m 214 -smp 1 -nographic -monitor unix:/tmp/test-monitor,server,nowait -no-acpi -boot c -hda /dev/HostVG/QEMUGuest1 -net none -serial none -parallel none -usb -vga none
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-nographics-vga.xml b/tests/qemuxml2argvdata/qemuxml2argv-nographics-vga.xml
new file mode 100644
index 0000000..533ea59
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-nographics-vga.xml
@@ -0,0 +1,24 @@
+<domain type='qemu'>
+  <name>QEMUGuest1</name>
+  <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+  <memory>219200</memory>
+  <currentMemory>219200</currentMemory>
+  <vcpu>1</vcpu>
+  <os>
+    <type arch='i686' machine='pc'>hvm</type>
+    <boot dev='hd'/>
+  </os>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>destroy</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu</emulator>
+    <disk type='block' device='disk'>
+      <source dev='/dev/HostVG/QEMUGuest1'/>
+      <target dev='hda' bus='ide'/>
+      <address type='drive' controller='0' bus='0' unit='0'/>
+    </disk>
+    <controller type='ide' index='0'/>
+  </devices>
+</domain>
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index 2a2387e..41e5749 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -252,6 +252,7 @@ mymain(int argc, char **argv)
 
     DO_TEST("graphics-sdl", 0);
     DO_TEST("graphics-sdl-fullscreen", 0);
+    DO_TEST("nographics-vga", QEMUD_CMD_FLAG_VGA);
     DO_TEST("input-usbmouse", 0);
     DO_TEST("input-usbtablet", 0);
     DO_TEST("input-xen", QEMUD_CMD_FLAG_DOMID);
-- 
1.6.5.2


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