Re: [Qemu-devel] [PATCH 5/5] intel_iommu: do not allow EIM without KVM support

[Radim Krčmář]

2016-09-23 11:27+0200, Paolo Bonzini:
> Since the whole IOMMU feature is new and somewhat experimental, I think
> it's okay to just make EIM the default for >=2.8 machine types if KVM is
> on (using DEFINE_PROP_ON_OFF_AUTO; auto means true if KVM is on and

Sounds good.

> false otherwise, and pc-2.7 would set eim=off).

What about eim=on in pc-2.7, to avoid breaking migration?