Re: [Xen-devel] Unable to get QXL vga working

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

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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> Xen-devel@xxxxxxxxxxxxx
> http://lists.xen.org/xen-devel



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