Re: Unable to get QXL vga working

[ZhouPeng <zpengxen@gmail.com>]

Hi Fantu,

Thanks for your response.

xl doesn't support qxl-related option at the moment.
I will test upstream-qemu-xen these days, and if it works well
with qxl device, I will be glad to add qxl support to xl.

Best,

On Thu, Apr 26, 2012 at 11:39 PM, Ian Campbell <Ian.Campbell@citrix.com> wrote:
> CCing Zhou Peng who originally added spice support to xl. Zhou, are you
> interested in supporting this feature?
>
> On Thu, 2012-04-26 at 16:23 +0100, Fantu wrote:
>> Dom0:
>> Wheezy 64 bit with kernel from package linux-image-3.2.0-2-amd64 version
>> 3.2.15-1, package blktap-dkms and all dependency packages for xen, spice and
>> usb redirection.
>> -------------------------
>> /etc/modules
>> ------------
>> loop max_loop=64
>> xenfs
>> xen-evtchn
>> blktap
>> -------------------------
>> hg clone http://xenbits.xen.org/xen-unstable.hg (in this build changeset is
>> 25249:a4e7fce6ee2b)
>> vi Makefile # removed dist-kernel to not compile kernel
>> -------------------------
>> vi Config.mk # qemu upstream unstable and seabios upstream unstable for
>> various spice and qxl bugfix
>> ------------
>> QEMU_UPSTREAM_URL ?= git://git.qemu.org/qemu.git
>> SEABIOS_UPSTREAM_URL ?= git://git.seabios.org/seabios.git
>> SEABIOS_UPSTREAM_TAG ?= rel-1.7.0
>> -------------------------
>> Added some patches:
>> - autoconf: add variable for pass arbitrary options to qemu upstream v3
>> - tools: Improve make deb
>> -------------------------
>> ./configure --enable-qemuu-spice --enable-qemuu-usbredir
>> --enable-qemuu-debug
>> -------------------------
>> make deb
>>
>> Tested it on Windows XP domU with this xl configuration file:
>> -------------------------------
>> XP.cfg
>> ---------
>> name='XP'
>> builder="hvm"
>> memory=1024
>> vcpus=2
>> hap=1
>> pae=1
>> acpi=1
>> apic=1
>> nx=1
>> vif=['bridge=xenbr0']
>> #vfb=['vnc=1,vncunused=1,vnclisten=0.0.0.0,keymap=it']
>> #disk=['/mnt/vm/disks/XP.disk1.xm,raw,hda,rw',',raw,hdb,ro,cdrom']
>> disk=['/mnt/vm/disks/XP.disk1.xm,raw,hda,rw']
>> boot='cd'
>> xen_platform_pci=1
>> viridian=1
>> device_model_version="qemu-xen"
>> #device_model_override="/usr/lib/xen/bin/qemu-debug.sh"
>> #vnc=1
>> #vncunused=1
>> #vnclisten="0.0.0.0"
>> #keymap="it"
>> spice=1
>> spicehost="0.0.0.0"
>> spiceport=6000
>> spicedisable_ticketing=1
>> on_poweroff="destroy"
>> on_reboot="restart"
>> on_crash="destroy"
>> stdvga=1
>> #device_model_args=["-vga qxl -global qxl-vga.vram_size_mb=16"]
>> #videoram=128
>> #device_model_args=["-vga qxl"]
>> -------------------------------
>> With stdvga option domU is working but graphic performance is poor with
>> spice.
>>
>>
>> With QXL vga option domU
>> -------------------------------
>> videoram=128
>> device_model_args=["-vga qxl"]
>> stdvga=0
>> -------------------------------
>> DomU not start, from qemu log:
>> qemu-system-i386: -vga qxl: invalid option
>>
>> But the option is correct and if I add:
>> device_model_override="/usr/lib/xen/bin/qemu-debug.sh"
>>
>> qemu-debug.sh launches the same qemu-system-i386 with same options and domU
>> starts.
>> DomU sees the QXL vga but only with 4 mb allocated and/or usabled instead of
>> 64 mb of qemu default.
>>
>> We need domUs with good graphic performance, also with high resolution and
>> also multimedia.
>> We can not use gfx passthrough on our dom0s because of hardware limitation
>> of dell server.
>> QXL seems to be the only way to go.
>>
>> We are testing this setup several months without success on xen.
>> Some initial xl and qemu ram/videoram bugs are now fixed but may be there
>> are other in xen not found for now.
>>
>> We noticed one particular thing:
>>
>> without qxl:
>> xc: info: VIRTUAL MEMORY ARRANGEMENT:
>>   Loader:        0000000000100000->000000000019dc88
>>   TOTAL:         0000000000000000->000000003f800000
>>   ENTRY ADDRESS: 0000000000100000
>>
>> with qxl:
>> xc: info: VIRTUAL MEMORY ARRANGEMENT:
>>   Loader:        0000000000100000->000000000019dc88
>>   TOTAL:         0000000000000000->0000000038000000
>>   ENTRY ADDRESS: 0000000000100000
>>
>> The total memory with qxl should be equal or major than total memory without
>> qxl.
>> There is something wrong about videoram, i don't know if in xl or other part
>> of xen.
>>
>> Please someone help me to solve this problem?
>>
>> --
>> View this message in context: http://xen.1045712.n5.nabble.com/Unable-to-get-QXL-vga-working-tp5667919p5667919.html
>> Sent from the Xen - Dev mailing list archive at Nabble.com.
>>
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>
>
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-- 
Zhou Peng