* On Tuesday 26 Aug 2008 14:40:57 Avi Kivity wrote:
> Amit Shah wrote:
> > The following two patches contain VT-d support for device assignment for
> > KVM guests.
> >
> > The first patch contains the changes that are required to the generic
> > VT-d code.
> >
> > The second patch contains the changes to KVM.
> >
> > Since the last send, I've updated the 2nd patch to expose KVM_CAP_IOMMU
> > and check for the existence of an IOMMU before using one. I've also
> > preserved the 'From' field for both the patches so that the original
> > authors are credited for the patches.
> >
> > The command line currently should be invoked with the parameter:
> >
> > -pcidevice dev=00:13.0,dma=iommu
>
> Why not default to iommu if one is available?

I've set that as default now.

What should the parameter be to disable just the iommu? dma=noiommu looks 
ugly.

Or do we not want to disable an iommu at all (even for debugging or testing 
something else, like pvdma)?

> btw, -usbdevice prefixes host devices with host:, no?  maybe adopt the
> convention for -pcidevice?

Sounds ok.
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