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From: "Harry G. Coin" <hgcoin@gmail.com>
Message-ID: <afb9df25-cf79-19d1-0085-fd72c6225013@gmail.com>
Date: Wed, 28 Apr 2021 16:00:40 -0500
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Subject: Re: [Virtio-fs] Min host / vm kernel rev for basic DAX ops?
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To: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Cc: virtio-fs@redhat.com


On 4/28/21 3:15 AM, Dr. David Alan Gilbert wrote:
> * Harry G. Coin (hgcoin@gmail.com) wrote:
>> Kindly answer a couple 'basic' virtiofs questions:
>>
>> 1) Which mainline kernel version is necessary for the host, and for the
>> vm to enable reliable DAX operations -- supposing no shared host
>> activity on the underlying fs.
> I don't think there's any host kernel dependency for DAX
> currently.
> (You do need a guest with the DAX support)

At least the version of the 'virt-manager' on fedora 33 doesn't support
the 'cache-size' host option, which as I understand from a post a few
days ago should be around 4G.  That's why I asked about the host
requirements.