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

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Date:	Sun, 13 Sep 2015 11:51:29 +0300
From:	"Michael S. Tsirkin" <mst@...hat.com>
To:	Jason Wang <jasowang@...hat.com>
Cc:	Paolo Bonzini <pbonzini@...hat.com>, gleb@...nel.org,
	kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
	cornelia.huck@...ibm.com
Subject: Re: [PATCH V4 0/4] Fast MMIO eventfd fixes

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.

-- 
MST
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