Xen Project Q&A Forum: First Line Help for Simple Questions
This is your chance to ask questions and provide answers about basic use of the Xen Project software. For debugging problems and for more complex issues, consider using the xen-users mailing list instead. You can find information about xen-users under "HELP | Mailing Lists" in the navigation bar above.
I've just started up with Xen, so sorry if I ask some very easy stuff. I have Ubuntu Dom0 and Win7 guest. The hardware:
Gigabyte Z97M D3H board (with VT-d)
Intel i7 4770 main processor (with VT-d)
Intel HD 4600 integrated graphics for Ubuntu
Ati HD4850 graphics for Win7 (with PCI passtrough)
20 GB ram (12 for Ubuntu, 1 for Intel graphics and 7 for the Winsh*t)
My only problem is if I give more than 2 GB RAM for the Windows, I cannot use the ATI card (code 12 in Win device management). As I read on Microsoft forums, it can be solved with disabling the integrated graphics card in BIOS (it is possibly a Win problem). However I cannot do that in the virtual machine.
If I disable the Standard VGA card in Win, nothing changes. If I remove it completely, it comes back after Win reboot. How is it possible to disable the standard VGA card. nographic=1 option does not work.
With max 2048 MB RAM, everything is fine.
I have Ubuntu 14.04 LTS with Xen 4.4 & xl toolstack. I've installed this system regarding to the instructions of "powerhouse" on Linux Mint forum: http://forums.linuxmint.com/viewtopic.php?f=42&t=112013 (many thanks for it!!!)
My config file for Win7:
builder='hvm' memory = 7168 #memory = 2048 name = 'win7' vcpus=4 #pae=1 acpi=1 apic=1 vif = ['bridge=xenbr0'] disk = [ 'phy:/dev/vg0/Win,hda,w','file:/home/nts/Win7/Win7x64.iso,hdc:cdrom,r'] boot='dc' sdl=0 vnc=1 vncpasswd='sajt' #stdvga=0 nographic=1 serial='pty' #tsc_mode='default' viridian=1 usb=1 usbdevice='tablet' gfx_passthru=0 pci=[ '01:00.0','01:00.1'] localtime=1 pci_power_mgmt=1 # ,'phy:/dev/sr0/,hdc:cdrom,r' # ,'file:/media/nts/Work/Store/Mikrofos/Office2010_Uni.iso,hdc:cdrom,r' # ,'file:/home/nts/Win7/Office2010_Uni.iso,hdc:cdrom,r'
Please help me!
Accepted AnswerRussell PavlicekOffline0Csaba,
I have been Googling this problem for a while and I am not finding a decent solution.
If no one else comes up with anything, I'd suggest asking the question on the xen-users mailing list. There is a much larger number of people there, so there is a greater chance that someone might know what to do.
You can find out about xen-users here:
Accepted AnswerCsaba NagyOffline0Dear Russel,
Sorry for the late answer, I had plenty of stuffs to do and I also tried some other stuff. I've found from other sources that it could be good to use "device_model_override=qemu-xen-traditional" because the new Xen has bugs for correct PCI/VGA passtrough. I've tried to use it on an already installed HVM and also to install a new one with traditional device model. In short words neither of them worked. Some details:
- With the already installed system. As soon as the traditional override is NOT used, I can use the windows on my second graphical connection on my monitor. If I tur the override on, the vnc behaves the same. The screen freezes during the Windows boot - with the shiny logo - but when I change the screen source to the secondary, there is no signal in the cable. So the passtrough is dead. After this, the guest is dead also without the device_model_override.
- With the fresh install, the guest is extremely slow - like a Pentium 3 (?) - and even if I wait until the installation is done (2-3 hours!!!!), at the end, I get blue screen. So it still doesn't work.
I will need to write to the guys on the mailing list. Thanks for the source.
Do you have any experiences with the "device_model_override=qemu-xen-traditional" method?