Re: [PATCH V4 0/4] Fast MMIO eventfd fixes

From: Michael S. Tsirkin
Date: Sun Sep 13 2015 - 04:52:10 EST


On Fri, Sep 11, 2015 at 05:28:29PM +0800, Jason Wang wrote:
>
>
> On 09/11/2015 04:33 PM, Paolo Bonzini wrote:
> >
> > On 11/09/2015 10:15, Michael S. Tsirkin wrote:
> >> I think we should add a capability for fast mmio.
> >> This way, userspace can avoid crashing buggy kernels.
> > I agree.
> >
> > Paolo
>
> Right, then qemu will use datamatch eventfd if kenrel dost not have the
> capability.
>
> Thanks

Wildcard is sufficient I think.

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