linux-kernel - Re: [PATCH v10 5/5] vfio: update live migration device status

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Message-ID: <ZDlGOlGqo2ZHDFm3@nvidia.com>
Date:   Fri, 14 Apr 2023 09:25:30 -0300
From:   Jason Gunthorpe <jgg@...dia.com>
To:     Longfang Liu <liulongfang@...wei.com>
Cc:     alex.williamson@...hat.com, shameerali.kolothum.thodi@...wei.com,
        jonathan.cameron@...wei.com, cohuck@...hat.com,
        linux-kernel@...r.kernel.org, linuxarm@...neuler.org
Subject: Re: [PATCH v10 5/5] vfio: update live migration device status

On Sat, Apr 08, 2023 at 03:42:24PM +0800, Longfang Liu wrote:
> migration debugfs needs to perform debug operations based on the
> status of the current device. If the device is not loaded or has
> stopped, debugfs does not allow operations.
> 
> so, after the live migration function is executed and the device is
> turned off, the device no longer needs to be accessed. At this time,
> the status of the device needs to be set to stop.

STOP means the devices isn't functioning

An idle device that has just been reset is RUNNING by definiton.

Jason