On Wed, Sep 23, 2015 at 04:32:00PM +0000, Chris Johnson wrote: > I am working on adding a virtio device to support a PCIe card (PCIe > pass-through wasn't an option). I need to do some cleanup when a VM that is > using this device is shutdown. It doesn't seem like the device_unrealize > function runs on shutdown unlike the device_realize function that runs when > the VM is started. I've been tracing through other virtio device code to try > and figure out what "exit" type functions will run for other devices when a > VM is shutdown but haven't had any luck with that yet. > > When does a virtio device's unrealize function run? > > What function, if any, runs for a virtio device when a VM is shutdown?
When QEMU terminates in vl.c:main(), devices are not unrealized. The unrealize code is only invoked on hot unplug (e.g. PCI card removed via 'device_del' command). What are you trying to do in the unrealize function? Stefan
