[PATCH] qemu: Support vram for video of qxl type

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For qemu names the primary vga as "qxl-vga":

  1) if vram is specified for 2nd qxl device:

    -vga qxl -global qxl-vga.vram_size=$SIZE \
    -device qxl,id=video1,vram_size=$SIZE,...

  2) if vram is not specified for 2nd qxl device, (use the default
     set by global):

    -vga qxl -global qxl-vga.vram_size=$SIZE \
    -device qxl,id=video1,...

For qemu names all qxl devices as "qxl":

  1) if vram is specified for 2nd qxl device:

    -vga qxl -global qxl.vram_size=$SIZE \
    -device qxl,id=video1,vram_size=$SIZE ...

  2) if vram is not specified for 2nd qxl device:

    -vga qxl -global qxl-vga.vram_size=$SIZE \
    -device qxl,id=video1,...

"-global" is the only way to define vram_size for the primary qxl
device, regardless of how qemu names it, (It's not good a good
way, as original idea of "-global" is to set a global default for
a driver property, but to specify vram for first qxl device, we
have to use it).

For other qxl devices, as they are represented by "-device", could
specify it directly and seperately for each, and it overrides the
default set by "-global" if specified.

---
 src/qemu/qemu_capabilities.c                       |    2 +
 src/qemu/qemu_capabilities.h                       |    1 +
 src/qemu/qemu_command.c                            |   16 +++++++++
 tests/qemuhelptest.c                               |    1 +
 .../qemuxml2argv-graphics-spice-qxl-vga.args       |    7 ++++
 .../qemuxml2argv-graphics-spice-qxl-vga.xml        |   36 ++++++++++++++++++++
 .../qemuxml2argv-graphics-spice.args               |    4 +-
 tests/qemuxml2argvtest.c                           |    4 ++
 tests/qemuxml2xmltest.c                            |    1 +
 9 files changed, 70 insertions(+), 2 deletions(-)
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.args
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.xml

diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index 5f08a20..cce6b5f 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -1118,6 +1118,8 @@ qemuCapsParseDeviceStr(const char *str, unsigned long long *flags)
     }
     if (strstr(str, "virtio-net-pci.tx="))
         *flags |= QEMUD_CMD_FLAG_VIRTIO_TX_ALG;
+    if (strstr(str, "name \"qxl-vga\""))
+        *flags |= QEMUD_CMD_FLAG_DEVICE_QXL_VGA;

     return 0;
 }
diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h
index 63cbbb3..f36c3ab 100644
--- a/src/qemu/qemu_capabilities.h
+++ b/src/qemu/qemu_capabilities.h
@@ -93,6 +93,7 @@ enum qemuCapsFlags {
     QEMUD_CMD_FLAG_CHARDEV_SPICEVMC = (1LL << 56), /* newer -chardev spicevmc */
     QEMUD_CMD_FLAG_DEVICE_SPICEVMC = (1LL << 57), /* older -device spicevmc*/
     QEMUD_CMD_FLAG_VIRTIO_TX_ALG = (1LL << 58), /* -device virtio-net-pci,tx=string */
+    QEMUD_CMD_FLAG_DEVICE_QXL_VGA = (1LL << 59), /* Is the primary and vga compatible qxl device named qxl-vga? */
 };

 virCapsPtr qemuCapsInit(virCapsPtr old_caps);
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 0db2843..c0bc343 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -1928,6 +1928,10 @@ qemuBuildVideoDevStr(virDomainVideoDefPtr video,

     virBufferVSprintf(&buf, "%s", model);
     virBufferVSprintf(&buf, ",id=%s", video->info.alias);
+
+    if (video->type == VIR_DOMAIN_VIDEO_TYPE_QXL && video->vram)
+        virBufferVSprintf(&buf, ",vram_size=%u", video->vram);
+
     if (qemuBuildDeviceAddressStr(&buf, &video->info, qemuCmdFlags) < 0)
         goto error;

@@ -4023,6 +4027,18 @@ qemuBuildCommandLine(virConnectPtr conn,
                 }

                 virCommandAddArgList(cmd, "-vga", vgastr, NULL);
+
+                if (def->videos[0]->type == VIR_DOMAIN_VIDEO_TYPE_QXL) {
+                    if (def->videos[0]->vram &&
+                        (qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE)) {
+                            if (qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE_QXL_VGA)
+                                virCommandAddArgFormat(cmd, "-global qxl-vga.vram_size=%u",
+                                                       def->videos[0]->vram);
+                            else
+                                virCommandAddArgFormat(cmd, "-global qxl.vram_size=%u",
+                                                       def->videos[0]->vram);
+                    }
+                }
             }
         } else {

diff --git a/tests/qemuhelptest.c b/tests/qemuhelptest.c
index 11890ab..202888d 100644
--- a/tests/qemuhelptest.c
+++ b/tests/qemuhelptest.c
@@ -481,6 +481,7 @@ mymain(int argc, char **argv)
             QEMUD_CMD_FLAG_DRIVE_AIO |
             QEMUD_CMD_FLAG_CCID_PASSTHRU |
             QEMUD_CMD_FLAG_CHARDEV_SPICEVMC |
+            QEMUD_CMD_FLAG_DEVICE_QXL_VGA |
             QEMUD_CMD_FLAG_VIRTIO_TX_ALG,
             12001, 1,  0);

diff --git a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.args b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.args
new file mode 100644
index 0000000..efc51d1
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.args
@@ -0,0 +1,7 @@
+LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test QEMU_AUDIO_DRV=spice \
+/usr/bin/qemu -S -M pc -m 214 -smp 1 -nodefaults -monitor \
+unix:/tmp/test-monitor,server,nowait -no-acpi -boot c -hda \
+/dev/HostVG/QEMUGuest1 -usb -spice port=5903,tls-port=5904,addr=127.0.0.1,\
+x509-dir=/etc/pki/libvirt-spice,tls-channel=main,plaintext-channel=inputs -vga \
+qxl -global qxl-vga.vram_size=65536 -device qxl,id=video1,vram_size=65536,bus=pci.0,addr=0x4 \
+-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.xml b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.xml
new file mode 100644
index 0000000..fc9f3fe
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.xml
@@ -0,0 +1,36 @@
+<domain type='qemu'>
+  <name>QEMUGuest1</name>
+  <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+  <memory>219136</memory>
+  <currentMemory>219136</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'/>
+    <input type='mouse' bus='ps2'/>
+    <graphics type='spice' port='5903' tlsPort='5904' autoport='no' listen='127.0.0.1'>
+      <channel name='main' mode='secure'/>
+      <channel name='inputs' mode='insecure'/>
+    </graphics>
+    <video>
+      <model type='qxl' vram='65536' heads='1'/>
+    </video>
+    <video>
+      <model type='qxl' vram='65536' heads='1'/>
+    </video>
+    <memballoon model='virtio'/>
+  </devices>
+</domain>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice.args b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice.args
index a8fb243..f7109b0 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice.args
@@ -3,5 +3,5 @@ LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test QEMU_AUDIO_DRV=spice \
 unix:/tmp/test-monitor,server,nowait -no-acpi -boot c -hda \
 /dev/HostVG/QEMUGuest1 -usb -spice port=5903,tls-port=5904,addr=127.0.0.1,\
 x509-dir=/etc/pki/libvirt-spice,tls-channel=main,plaintext-channel=inputs -vga \
-qxl -device qxl,id=video1,bus=pci.0,addr=0x4 -device virtio-balloon-pci,\
-id=balloon0,bus=pci.0,addr=0x3
+qxl -global qxl.vram_size=65536 -device qxl,id=video1,vram_size=65536,bus=pci.0,addr=0x4 \
+-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index 4817d51..d5b240e 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -354,6 +354,10 @@ mymain(int argc, char **argv)
     DO_TEST("graphics-spice",
             QEMUD_CMD_FLAG_VGA | QEMUD_CMD_FLAG_VGA_QXL |
             QEMUD_CMD_FLAG_DEVICE | QEMUD_CMD_FLAG_SPICE, false);
+    DO_TEST("graphics-spice-qxl-vga",
+            QEMUD_CMD_FLAG_VGA | QEMUD_CMD_FLAG_VGA_QXL |
+            QEMUD_CMD_FLAG_DEVICE | QEMUD_CMD_FLAG_SPICE |
+            QEMUD_CMD_FLAG_DEVICE_QXL_VGA, false);

     DO_TEST("input-usbmouse", 0, false);
     DO_TEST("input-usbtablet", 0, false);
diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c
index 67e721b..c0c36ad 100644
--- a/tests/qemuxml2xmltest.c
+++ b/tests/qemuxml2xmltest.c
@@ -152,6 +152,7 @@ mymain(int argc, char **argv)
     DO_TEST("graphics-sdl");
     DO_TEST("graphics-sdl-fullscreen");
     DO_TEST("graphics-spice");
+    DO_TEST("graphics-spice-qxl-vga");
     DO_TEST("input-usbmouse");
     DO_TEST("input-usbtablet");
     DO_TEST("input-xen");
--
1.7.4

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