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Subject: Re: [Qemu-devel] dataplane, thread and gpu stuff
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To: Stefan Hajnoczi <stefanha@gmail.com>
Cc: Dave Airlie <airlied@gmail.com>, "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>

Il 18/11/2013 16:03, Stefan Hajnoczi ha scritto:
> As of today, there are still two vring implementations in
> hw/virtio/virtio.c and hw/virtio/dataplane/vring.c.  This means it isn't
> clean and easy to integrate into a new device yet.  Existing dataplane
> devices basically take advantage of the fact that the non-dataplane
> version sets up the device before I/O.
> 
> Paolo can give you details on the latest thread-safe memory API stuff
> and whether it's already usable for virtio.

vring and virtio are still separate even in my latest patches.  I have
patches to convert vring to use memory_region_find instead of hostmem.

> Regarding irqfd, we could emulate it in TCG using an EventNotifier
> (eventfd).  At that point I think it's no longer kvm-specific.

I think he's talking about ioeventfd though.

Paolo