Re: [Qemu-devel] [PATCH v2 00/38] Delay destruction of memory regions to instance_finalize

[Paolo Bonzini]

Il 17/09/2013 14:47, Michael S. Tsirkin ha scritto:
> Ergo, to make sure a referenced MR does not get
> destroyed, we must make sure only finalize
> calls memory_region_destroy.
> 
> So I think this patchset should do exactly that,
> not try to move out more stuff to finalize.

Yes, this is the part of the problem that applies to all devices.

Some devices may have timers or other dynamically-allocated data that
may be used between exit and finalize.  The same applies to capabilities
such as MSI and MSI-X.  All this must also be moved to finalize, but
this can be done in separate patches.

I'll separate the series as follows:

- memory_region_destroy

- unregister_savevm

- other dynamically allocated data

- del_vm_change_state_handler

- MSI-X

- SHPC, AER and other PCI/bridge stuff

Paolo