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

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Date:	Fri, 11 Sep 2015 17:28:29 +0800
From:	Jason Wang <jasowang@...hat.com>
To:	Paolo Bonzini <pbonzini@...hat.com>,
	"Michael S. Tsirkin" <mst@...hat.com>
Cc:	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 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

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