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Re: [Qemu-devel] dataplane, thread and gpu stuff
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] dataplane, thread and gpu stuff |
Date: |
Mon, 18 Nov 2013 17:37:20 +0100 |
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Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130923 Thunderbird/17.0.9 |
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