From: Christoph Hellwig <hch@infradead.org>
To: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org,
"Michael S. Tsirkin" <mst@redhat.com>
Subject: Re: [PATCH 2/3] virtio-pci: Use ioeventfd for virtqueue notify
Date: Thu, 11 Nov 2010 11:45:18 -0500 [thread overview]
Message-ID: <20101111164518.GA28773@infradead.org> (raw)
In-Reply-To: <1289483242-6069-3-git-send-email-stefanha@linux.vnet.ibm.com>
On Thu, Nov 11, 2010 at 01:47:21PM +0000, Stefan Hajnoczi wrote:
> Some virtio devices are known to have guest drivers which expect a notify to be
> processed synchronously and spin waiting for completion. Only enable ioeventfd
> for virtio-blk and virtio-net for now.
Who guarantees that less common virtio-blk and virtio-net guest drivers
for non-Linux OSes are fine with it? Maybe you should add a feature flag
that the guest has to ACK to enable it.
next prev parent reply other threads:[~2010-11-11 16:45 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-11 13:47 [PATCH v2 0/3] virtio: Use ioeventfd for virtqueue notify Stefan Hajnoczi
2010-11-11 13:47 ` [PATCH 1/3] virtio-pci: Rename bugs field to flags Stefan Hajnoczi
2010-11-11 13:47 ` [PATCH 2/3] virtio-pci: Use ioeventfd for virtqueue notify Stefan Hajnoczi
2010-11-11 15:53 ` Michael S. Tsirkin
2010-11-12 9:18 ` Stefan Hajnoczi
2010-11-12 9:25 ` Michael S. Tsirkin
2010-11-12 13:10 ` Stefan Hajnoczi
2010-11-11 16:45 ` Christoph Hellwig [this message]
2010-11-12 9:20 ` [Qemu-devel] " Stefan Hajnoczi
2010-11-14 10:34 ` Avi Kivity
2010-11-14 10:37 ` Stefan Hajnoczi
2010-11-14 11:05 ` Avi Kivity
2010-11-14 12:19 ` Avi Kivity
2010-11-15 11:20 ` Stefan Hajnoczi
2010-12-01 11:44 ` Stefan Hajnoczi
2010-12-01 12:30 ` Avi Kivity
2010-12-01 21:34 ` Stefan Hajnoczi
2010-12-06 15:09 ` Avi Kivity
2010-11-11 16:59 ` Avi Kivity
2010-11-11 17:12 ` Michael S. Tsirkin
2010-11-11 17:55 ` Gleb Natapov
2010-11-11 13:47 ` [PATCH 3/3] virtio-pci: Don't use ioeventfd on old kernels Stefan Hajnoczi
2010-11-11 17:46 ` [PATCH v2 0/3] virtio: Use ioeventfd for virtqueue notify Michael S. Tsirkin
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