[Pkg-xen-devel] Bug#733865: Bug#733865: xen-utils-4.3: qemu-dm is not executable: No such file or directory

[Marc F. Clemente]

On 01/02/2014 11:56 AM, Ian Campbell wrote:
> You can select a non-default model use by using the
> "device_model_version" directive in your config.

 From what I gather, for now, you MUST select a non-default model, using 
something like:

device_model_version="qemu-xen"
device_model_override="/usr/bin/qemu-system-x86_64"

> In the context of Debian the Debian Xen maintainer has been trying to
> move away from the traditional fork for several releases. Historically
> the traditional qemu was shipped with the Xen utils in but in some
> release (Wheezy? Maybe Squeeze?) it was removed and ended up packaged
> separately as a separate xen-qemu-dm-4.0 package in order to keep things
> working. In Jessie even that is gone. Luckily however the upstream qemu
> package in Jessie already supports Xen so you should be able to simply
> select that in your configuration.

So "traditional" disappeared when Debian's xen went from 4.1 to 4.2.

> So, things are a bit in flux right now but will be sorted by the time
> Jessie is actually released. The fact that the Xen tools in 4.3 still
> default to qemu-traditional which is not present is a bit unfortunate
> but with Xen 4.4 due to be released in the next 4-6 weeks with a default
> of qemu-upstream this will take care of itself sooner rather than later.
> Xen 4.4 also includes support for compiling without qemu-traditional
> support which will improve the error message should you try to use it
> (either inadvertently as you have done here or deliberately).

Is it, or will it be possible for me to build xen 4.3 or 4.4 WITH 
"traditional"?

>> Is it possible to do HVM with Debian?
>
> It should be, although as I say it may be in flux a bit.

My problem is that I was doing HVM with xen 4.1.  I had MS Windows XP, 7 
and 8 virtual machines.  I had VGA and PCI passthrough working just 
fine.  I tried using xen 4.2, but I was unable to do VGA passthrough. 
With 4.3, I can't even do PCI passthrough.  It says that my Intel 5500 
chipset is buggy (Intel errata #53), and disables IOMMU.  Maybe my 
chipset is buggy...  But it is rock-solid stable when I do HVMs with VGA 
passthrough using xen 4.1.

I wonder if anybody else shares my experience...

Comments or emails are welcome.

Thanks,

Marc