Re: [Qemu-devel] [PATCH] versatile: Push lsi initialization to the end

[Paolo Bonzini]

Il 08/10/2012 18:02, Peter Maydell ha scritto:
>> > It's not (only) about a missing event for the serial frontend, it's also
>> > about a spurious open event to the monitor. That generates unwanted
>> > output during startup.
> Right, so whatever's sending that event needs not to do so until
> creation of the machine is complete. Sending events randomly
> halfway through init is a recipe for problems...

So we now have proof that using bottom halves outside the block layer
was a bad idea.  Thanks Jan. :)

If Stefan goes on with the AioContext idea, we can have separate
AioContexts for qemu_bh_new on one side and for block devices on the
other, so that qemu_bh_new bottom halves won't fire just because
something is calling the block layer.

In the meanwhile, qemu_char could use a QEMUTimer expiring in the past
instead of a bottom half.

Paolo