Discussion of the implementations of VIRTIO specification
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From: Cornelia Huck <cohuck@redhat.com>
To: Pankaj Gupta <pankaj.gupta.linux@gmail.com>,
	Stefan Hajnoczi <stefanha@redhat.com>
Cc: virtio-dev@lists.oasis-open.org,
	Dan Williams <dan.j.williams@intel.com>,
	David Hildenbrand <david@redhat.com>,
	"Michael S . Tsirkin" <mst@redhat.com>,
	Taylor Stark <tstark@linux.microsoft.com>,
	Pankaj Gupta <pankaj.gupta@ionos.com>
Subject: [virtio-dev] Re: [PATCH v2] virtio-pmem: PMEM device spec
Date: Wed, 18 Aug 2021 10:45:28 +0200	[thread overview]
Message-ID: <87tujnrviv.fsf@redhat.com> (raw)
In-Reply-To: <CAM9Jb+idw-LNTbEekYz9KkuYu4w+T4UbzLJoGfQULU=2Zd97ng@mail.gmail.com>

On Tue, Aug 17 2021, Pankaj Gupta <pankaj.gupta.linux@gmail.com> wrote:

>> > +\drivernormative{\subsubsection}{Driver Initialization: Virtio flush}{Device Types / PMEM Driver / Driver Initialization / Virtio flush}
>> > +
>> > +The driver MUST implement a virtio based flushing interface.
>>
>> I think this can be dropped. The only way to make writes persistent is
>> by sending flush requests. There is no need to say that the driver has
>> to use this interface. It doesn't really have to, but then it won't be
>> able to guarantee persistence.
>
> I am not 100 percent sure on this.

I don't think we want this in a normative section, but maybe there's a
place for it in a section that describes the general operation?


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  reply	other threads:[~2021-08-18  8:45 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-13  9:52 [PATCH v2] virtio-pmem: PMEM device spec Pankaj Gupta
2021-08-17 15:26 ` Stefan Hajnoczi
2021-08-17 20:11   ` Pankaj Gupta
2021-08-18  8:45     ` Cornelia Huck [this message]
2021-08-19  5:53       ` Pankaj Gupta
2021-08-19  9:38         ` [virtio-dev] " Stefan Hajnoczi
2021-08-19 10:11           ` Pankaj Gupta
2021-08-18  9:22 ` Cornelia Huck
2021-08-19  6:03   ` Pankaj Gupta

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