From: Avi Kivity <avi@redhat.com>
To: Gregory Haskins <ghaskins@novell.com>
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 3/4] KVM: add io services to xinterface
Date: Sun, 04 Oct 2009 12:26:25 +0200 [thread overview]
Message-ID: <4AC87851.30501@redhat.com> (raw)
In-Reply-To: <20091002201932.4014.91402.stgit@dev.haskins.net>
On 10/02/2009 10:19 PM, Gregory Haskins wrote:
> We want to add a more efficient way to get PIO signals out of the guest,
> so we add an "xioevent" interface. This allows a client to register
> for notifications when a specific MMIO/PIO address is touched by
> the guest. This is an alternative interface to ioeventfd, which is
> performance limited by io-bus scaling and eventfd wait-queue based
> notification mechanism. This also has the advantage of retaining
> the full PIO data payload and passing it to the recipient.
>
>
Can you detail the problems with io-bus scaling and eventfd
wait-queues? Maybe we should fix these instead.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2009-10-04 10:26 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-02 20:19 [PATCH v2 0/4] KVM: xinterface Gregory Haskins
2009-10-02 20:19 ` [PATCH v2 1/4] mm: export use_mm() and unuse_mm() to modules Gregory Haskins
2009-10-02 20:19 ` [PATCH v2 2/4] KVM: introduce "xinterface" API for external interaction with guests Gregory Haskins
2009-10-03 20:05 ` Marcelo Tosatti
2009-10-05 23:33 ` Gregory Haskins
2009-10-04 10:25 ` Avi Kivity
2009-10-05 23:57 ` Gregory Haskins
2009-10-06 9:34 ` Avi Kivity
2009-10-06 13:31 ` Gregory Haskins
2009-10-06 14:22 ` Gregory Haskins
2009-10-06 16:23 ` Avi Kivity
2009-10-06 17:00 ` Gregory Haskins
2009-10-06 17:00 ` Gregory Haskins
2009-10-06 19:40 ` Gregory Haskins
2009-10-07 8:11 ` Avi Kivity
2009-10-07 12:48 ` Gregory Haskins
2009-10-08 14:45 ` Avi Kivity
2009-10-06 16:19 ` Avi Kivity
2009-10-06 16:58 ` Gregory Haskins
2009-10-06 18:18 ` [Alacrityvm-devel] " Ira W. Snyder
2009-10-07 5:10 ` Amit Shah
2009-10-07 7:43 ` Avi Kivity
2009-10-02 20:19 ` [PATCH v2 3/4] KVM: add io services to xinterface Gregory Haskins
2009-10-04 10:26 ` Avi Kivity [this message]
2009-10-02 20:19 ` [PATCH v2 4/4] KVM: add scatterlist support " Gregory Haskins
2009-10-04 10:28 ` Avi Kivity
2009-10-05 23:57 ` Gregory Haskins
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