[Spice-devel] Does spice in xen-4.2.0 support QXL?
Fabio Fantoni
fabio.fantoni at heliman.it
Tue Nov 13 01:49:14 PST 2012
> Hi, everyone!
>
> I am doing research on remote connect with Xen. My host is Fedora 14 and my
> guest is win7.
>
> I have installed spice package and now I can connect to my guest by spice
> client.
>
> Now I want to use QXL, but I don't know if it is supported by the spice in
> xen-4.2.0.
>
> Could anyone help me?
>
> Thank you!
>
> huqian
QXL support in xen is planned for 4.3, you can add manually the actual
patch for add it, see attachment.
I tried it many times, months ago was working but xorg on linux domU not
started and on windows domU had blu screen refered to qxl driver,
recently starting domU with spice and qxl caused qemu crash with this
error on log:
(/usr/sbin/xl:3463): Spice-CRITICAL **: red_memslots.c:123:get_virt:
slot_id 194 too big, addr=c2c2c2c2c2c2c2c2
Some details on one of my latest test:
http://lists.xen.org/archives/html/xen-devel/2012-10/msg01820.html
Already reported 2 times (on xen) but no reply, I not know if is xen,
qemu and/or spice problem.
Is now a year I try to have spice with qxlrunning on xen, I have done
numerous tests and reports, some bugs/changes on xen and qemu have been
made, but are not yet sufficient to have qxl functioning as of kvm:(
If someone solve this problem can tell me how please?
Thanks for any reply and sorry for bad english
-------------- next part --------------
tools:libxl: Add qxl vga interface support for upstream-qemu-xen.
Usage:
qxl=1|0
Signed-off-by: Zhou Peng <ailvpeng25 at xxxxxxxxx>
diff -r c1c549c4fe9e docs/man/xl.cfg.pod.5
--- a/docs/man/xl.cfg.pod.5 Mon Oct 15 16:51:44 2012 +0100
+++ b/docs/man/xl.cfg.pod.5 Wed Oct 24 15:39:43 2012 +0800
@@ -930,10 +930,13 @@ in the B<VFB_SPEC_STRING> for configurin
Sets the amount of RAM which the emulated video card will contain,
which in turn limits the resolutions and bit depths which will be
-available. This option is only available when using the B<stdvga>
-option (see below).
+available. This option is only available when using the B<stdvga> and
+B<qxl> option (see below).
The default amount of video ram for stdvga is 8MB which is sufficient
for e.g. 1600x1200 at 32bpp.
+For B<qxl> option, the default is 128MB. If B<videoram> is set greater
+than 128MB, it will be trimmed to 128MB; if set less than 128MB, an
+error will be triggered.
When using the emulated Cirrus graphics card (B<stdvga=0>)
the amount of video ram is fixed at 4MB which is sufficient
@@ -951,6 +954,14 @@ a Cirrus Logic GD5446 VGA card. If your
a Cirrus Logic GD5446 VGA card. If your guest supports VBE 2.0 or
later (e.g. Windows XP onwards) then you should enable this.
stdvga supports more video ram and bigger resolutions than Cirrus.
+
+=item B<qxl=BOOLEAN>
+
+Select a QXL VGA card as the emulated graphics device.
+In general, QXL should work with the Spice remote display protocol
+for acceleration, and QXL driver is necessary in guest in this case.
+QXL can also work with the VNC protocol, but it will be like a standard
+VGA without acceleration.
=item B<vnc=BOOLEAN>
diff -r c1c549c4fe9e tools/libxl/libxl_create.c
--- a/tools/libxl/libxl_create.c Mon Oct 15 16:51:44 2012 +0100
+++ b/tools/libxl/libxl_create.c Wed Oct 24 15:39:43 2012 +0800
@@ -232,8 +232,31 @@ int libxl__domain_build_info_setdefault(
case LIBXL_DOMAIN_TYPE_HVM:
if (b_info->shadow_memkb == LIBXL_MEMKB_DEFAULT)
b_info->shadow_memkb = 0;
+
+ if (b_info->device_model_version == LIBXL_DEVICE_MODEL_VERSION_QEMU_XEN
+ && b_info->u.hvm.vga.kind == LIBXL_VGA_INTERFACE_TYPE_QXL) {
+ /*
+ * QXL needs 128 Mib video ram by default.
+ */
+#define QXL_VIDEO_RAM_DEFAULT (128 * 1024)
+ if (b_info->video_memkb == LIBXL_MEMKB_DEFAULT) {
+ b_info->video_memkb = QXL_VIDEO_RAM_DEFAULT;
+ }
+ if (b_info->video_memkb < QXL_VIDEO_RAM_DEFAULT) {
+ LIBXL__LOG(CTX, LIBXL__LOG_ERROR,
+ "128 Mib videoram is necessary for qxl default");
+ return ERROR_INVAL;
+ }
+ if (b_info->video_memkb > QXL_VIDEO_RAM_DEFAULT) {
+ b_info->video_memkb = QXL_VIDEO_RAM_DEFAULT;
+ LIBXL__LOG(CTX, LIBXL__LOG_WARNING,
+ "trim videoram to qxl default: 128 Mib");
+ }
+#undef QXL_VIDEO_RAM_DEFAULT
+ }
if (b_info->video_memkb == LIBXL_MEMKB_DEFAULT)
b_info->video_memkb = 8 * 1024;
+
if (b_info->u.hvm.timer_mode == LIBXL_TIMER_MODE_DEFAULT)
b_info->u.hvm.timer_mode =
LIBXL_TIMER_MODE_NO_DELAY_FOR_MISSED_TICKS;
diff -r c1c549c4fe9e tools/libxl/libxl_dm.c
--- a/tools/libxl/libxl_dm.c Mon Oct 15 16:51:44 2012 +0100
+++ b/tools/libxl/libxl_dm.c Wed Oct 24 15:39:43 2012 +0800
@@ -181,6 +181,8 @@ static char ** libxl__build_device_model
break;
case LIBXL_VGA_INTERFACE_TYPE_CIRRUS:
break;
+ case LIBXL_VGA_INTERFACE_TYPE_QXL:
+ break;
}
if (b_info->u.hvm.boot) {
@@ -430,6 +432,9 @@ static char ** libxl__build_device_model
break;
case LIBXL_VGA_INTERFACE_TYPE_CIRRUS:
flexarray_vappend(dm_args, "-vga", "cirrus", NULL);
+ break;
+ case LIBXL_VGA_INTERFACE_TYPE_QXL:
+ flexarray_vappend(dm_args, "-vga", "qxl", NULL);
break;
}
diff -r c1c549c4fe9e tools/libxl/libxl_types.idl
--- a/tools/libxl/libxl_types.idl Mon Oct 15 16:51:44 2012 +0100
+++ b/tools/libxl/libxl_types.idl Wed Oct 24 15:39:43 2012 +0800
@@ -130,6 +130,7 @@ libxl_vga_interface_type = Enumeration("
libxl_vga_interface_type = Enumeration("vga_interface_type", [
(1, "CIRRUS"),
(2, "STD"),
+ (3, "QXL"),
], init_val = 0)
#
diff -r c1c549c4fe9e tools/libxl/xl_cmdimpl.c
--- a/tools/libxl/xl_cmdimpl.c Mon Oct 15 16:51:44 2012 +0100
+++ b/tools/libxl/xl_cmdimpl.c Wed Oct 24 15:39:43 2012 +0800
@@ -1402,6 +1402,14 @@ skip_vfb:
b_info->u.hvm.vga.kind = l ? LIBXL_VGA_INTERFACE_TYPE_STD :
LIBXL_VGA_INTERFACE_TYPE_CIRRUS;
+ if (!xlu_cfg_get_long(config, "qxl", &l, 0)) {
+ if (l) {
+ b_info->u.hvm.vga.kind = LIBXL_VGA_INTERFACE_TYPE_QXL;
+ } else if (!b_info->u.hvm.vga.kind) {
+ b_info->u.hvm.vga.kind = LIBXL_VGA_INTERFACE_TYPE_CIRRUS;
+ }
+ }
+
xlu_cfg_get_defbool(config, "vnc", &b_info->u.hvm.vnc.enable, 0);
xlu_cfg_replace_string (config, "vnclisten",
&b_info->u.hvm.vnc.listen, 0);
--
Zhou Peng
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