On Thu, 1 Oct 2015 13:59:02 +0300
Avi Kivity <a...@scylladb.com> wrote:

> On 10/01/2015 01:28 AM, Stephen Hemminger wrote:
> > This is a new UIO device driver to allow supporting MSI-X and MSI devices
> > in userspace.  It has been used in environments like VMware and older 
> > versions
> > of QEMU/KVM where no IOMMU support is available.  
> 
> Why not add msi/msix support to uio_pci_generic?

That is possible but that would meet ABI and other resistance from the author.
Also, uio_pci_generic makes it harder to find resources since it doesn't fully
utilize UIO infrastructure.
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