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Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion

From: Paolo Bonzini
Subject: Re: [Qemu-devel] KVM "fake DAX" flushing interface - discussion
Date: Fri, 24 Nov 2017 13:44:23 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0

On 24/11/2017 13:40, Pankaj Gupta wrote:
>    - Suggestion by Paolo & Stefan(previously) to use virtio-blk makes sense 
> if just 
>      want a flush vehicle to send guest commands to host and get reply after 
> asynchronous
>      execution. There was previous discussion [1] with Rik & Dan on this.
>     [1] https://lists.gnu.org/archive/html/qemu-devel/2017-07/msg08373.html 

... in fact, the virtio-blk device _could_ actually accept regular I/O
too.  That would make it easier to boot from pmem.  Is there anything
similar in regular hardware?


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