From: Sasha Levin <levinsasha928@gmail.com>
To: Pekka Enberg <penberg@kernel.org>
Cc: kvm@vger.kernel.org, mingo@elte.hu, asias.hejun@gmail.com,
gorcunov@gmail.com
Subject: Re: [PATCH 1/4] kvm tools: Support VIRTIO_RING_F_EVENT_IDX
Date: Thu, 17 Nov 2011 15:36:17 +0200 [thread overview]
Message-ID: <1321536977.4221.11.camel@lappy> (raw)
In-Reply-To: <CAOJsxLEF903xT2GWTwc4LMPZiTiAS=rCD+-0ime+Oky+VoR5jQ@mail.gmail.com>
On Thu, 2011-11-17 at 15:24 +0200, Pekka Enberg wrote:
> On Thu, Nov 17, 2011 at 3:04 PM, Sasha Levin <levinsasha928@gmail.com> wrote:
> > Support the event index feature in the virtio spec.
> >
> > The results are less notifications between the guest and host, and in
> > result faster operation of the virt queues.
> >
> > Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
>
> What's this patch doing? There's no mention of VIRTIO_RING_F_EVENT_IDX
> in the diff...
It allows enabling the VIRTIO_RING_F_EVENT_IDX feature in various
virtio-* devices by updating the avail event idx and providing a
function to allow the devices to query the vq and decide if they need to
signal the VQ or not.
--
Sasha.
next prev parent reply other threads:[~2011-11-17 13:38 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-17 13:04 [PATCH 1/4] kvm tools: Support VIRTIO_RING_F_EVENT_IDX Sasha Levin
2011-11-17 13:04 ` [PATCH 2/4] kvm tools: Add '--no-dhcp' to disable kernel DHCP Sasha Levin
2011-11-17 13:04 ` [PATCH 3/4] kvm tools: Support event idx in virtio-net Sasha Levin
2011-11-17 13:04 ` [PATCH 4/4] kvm tool: Add event idx support to virtio-blk Sasha Levin
2011-11-17 13:24 ` [PATCH 1/4] kvm tools: Support VIRTIO_RING_F_EVENT_IDX Pekka Enberg
2011-11-17 13:36 ` Sasha Levin [this message]
2011-11-17 13:44 ` Pekka Enberg
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