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Re: [Qemu-block] [RFC PATCH 0/7] BlockBackends, nodes and guest devices

From: Max Reitz
Subject: Re: [Qemu-block] [RFC PATCH 0/7] BlockBackends, nodes and guest devices
Date: Mon, 27 Jun 2016 18:40:17 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.1.1

On 27.06.2016 18:38, Kevin Wolf wrote:
> Am 27.06.2016 um 18:13 hat Max Reitz geschrieben:
>> I'm not sure if WCE truly is a guest device property, but adding it as a
>> guest device property and then syncing it to the BB makes sense (as done
>> in patch 7).
> It is truly a guest device property. Physical hardware can have a
> volatile write cache and software can actively enable or disable it. We
> support this in all relevant guest devices (SCSI, virtio-blk, IDE).

Yes, but I consider it a host property, too, in case you just want
write-through on your host. That's why I think syncing the property
makes sense.


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