Messages in this thread | | | Date | Fri, 21 Apr 2023 11:30:13 -0300 | From | Jason Gunthorpe <> | Subject | Re: [PATCH v10 5/5] vfio: update live migration device status |
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On Fri, Apr 21, 2023 at 11:07:53AM +0800, liulongfang wrote: > On 2023/4/14 20:25, Jason Gunthorpe write: > > 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. > > > > After the vfio device is opened, it will be set to RUNNING, and after it > is closed, it should be set to STOP according to the function of the > device.
No, VFIO does not STOP anything, RUNNING means the PCI function is operating normally, which is always how VFIO leaves it when the FD is closed.
Jason
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