Re: [Xen-users] Which QEMU device-model to use for Windows HVM guests???

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Wed, 2012-06-13 at 14:24 +0100, cyberhawk001@xxxxxxxxx wrote:
> Just wondering about which QEMU version to use. Looking in the xl.cfg 
> MAN page, you can choose from "qemu-xen-traditional" or  "qemu-xen", 
> however i have seen a third one "qemu-dm" WHICH is not listed in the 
> xl.cfg man page.
> 
> I know the "qemu-xen-traditional" device-model is the default one as it 
> is more stable, compatible and so forth. The "qemu-xen" is the qemu 
> upstream one and i am sure still not so stable without tweaking, BUT 
> have read that f you want to use IOMMU (pci passthrough), than 
> "qemu-xen" doesn't have support or is buggy, or something like that. I 
> do want to use PCI passthrough so i guess that is not an option. 
> HOWEVER, i have read people use "qemu-dm" and don't know how different 
> is that compared to the other two choices.

qemu-dm is just an umbrella term for the device model, it's not a
specific version.

> SO, considering creating a VM to be of type HVM, such as any flavor of 
> Windows, which qemu device-model would give the best results using Xen 
> 4.2-unstable??

Use the default, which is qemu-xen-traditional.

Ian.


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