From: Anthony Liguori <anthony@codemonkey.ws>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Paul Brook <paul@codesourcery.com>, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] Re: [PATCH-RFC 13/13] virtio-net: connect to vhost net backend
Date: Wed, 24 Feb 2010 09:16:22 -0600 [thread overview]
Message-ID: <4B8542C6.1060900@codemonkey.ws> (raw)
In-Reply-To: <20100224114605.GA32125@redhat.com>
On 02/24/2010 05:46 AM, Michael S. Tsirkin wrote:
>
> Ah, you mean telling the guest to switch features on and off: natureally
> this would require guest driver changes. This might be also non-trivial
> to implement. Consider a request that has been posted without checksum,
> suddenly we disable checksum support. Guest will need a way to handle
> that. Guest OSes might also not be prepared to handle device features
> going away.
>
It's the same as cpuid flags.
Management tools should plan appropriately and not advertise virtio
features that cannot be supported throughout the migration pool.
Fortunately, someone had enough foresight to allow management software
to disable virtio features on a per-feature basis :-)
Regards,
Anthony Liguori
next prev parent reply other threads:[~2010-02-24 15:16 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cover.1263230079.git.mst@redhat.com>
2010-01-11 17:16 ` [Qemu-devel] [PATCH-RFC 01/13] virtio: export virtqueue structure Michael S. Tsirkin
2010-01-12 22:32 ` [Qemu-devel] " Anthony Liguori
2010-01-25 19:10 ` Michael S. Tsirkin
2010-01-25 19:23 ` Anthony Liguori
2010-01-11 17:17 ` [Qemu-devel] [PATCH-RFC 02/13] kvm: add API to set ioeventfd Michael S. Tsirkin
2010-01-12 22:35 ` [Qemu-devel] " Anthony Liguori
2010-01-25 19:20 ` Michael S. Tsirkin
2010-01-25 19:28 ` Anthony Liguori
2010-01-25 19:28 ` Michael S. Tsirkin
2010-01-25 19:44 ` Anthony Liguori
2010-01-11 17:17 ` [Qemu-devel] [PATCH-RFC 03/13] virtio: add iofd/irqfd support Michael S. Tsirkin
2010-01-12 22:36 ` [Qemu-devel] " Anthony Liguori
2010-01-13 10:50 ` Michael S. Tsirkin
2010-01-11 17:17 ` [Qemu-devel] [PATCH-RFC 04/13] virtio-pci: fill in irqfd/queufd support Michael S. Tsirkin
2010-01-11 17:19 ` [Qemu-devel] [PATCH-RFC 05/13] syborg_virtio: add irqfd/eventfd support Michael S. Tsirkin
2010-01-11 17:20 ` [Qemu-devel] [PATCH-RFC 06/13] s390-virtio: fill in irqfd support Michael S. Tsirkin
2010-01-11 17:20 ` [Qemu-devel] [PATCH-RFC 07/13] virtio: move typedef to qemu-common Michael S. Tsirkin
2010-01-11 17:20 ` [Qemu-devel] [PATCH-RFC 08/13] net/tap: add interface to get device fd Michael S. Tsirkin
2010-01-11 17:22 ` [Qemu-devel] [PATCH-RFC 09/13] tap: add vhost/vhostfd options Michael S. Tsirkin
2010-01-12 22:39 ` [Qemu-devel] " Anthony Liguori
2010-01-13 10:59 ` Michael S. Tsirkin
2010-01-12 22:42 ` Anthony Liguori
2010-01-11 17:22 ` [Qemu-devel] [PATCH-RFC 10/13] tap: add API to retrieve vhost net header Michael S. Tsirkin
2010-01-11 17:23 ` [Qemu-devel] [PATCH-RFC 12/13] virtio: add status change callback Michael S. Tsirkin
2010-01-11 17:23 ` [Qemu-devel] [PATCH-RFC 13/13] virtio-net: connect to vhost net backend Michael S. Tsirkin
2010-01-25 19:58 ` [Qemu-devel] " Anthony Liguori
2010-01-25 20:27 ` Michael S. Tsirkin
2010-01-25 21:00 ` Anthony Liguori
2010-01-25 21:01 ` Michael S. Tsirkin
2010-01-25 21:05 ` Michael S. Tsirkin
2010-01-25 21:11 ` Anthony Liguori
2010-02-24 3:14 ` Paul Brook
2010-02-24 5:29 ` Michael S. Tsirkin
2010-02-24 11:30 ` Paul Brook
2010-02-24 11:46 ` Michael S. Tsirkin
2010-02-24 12:26 ` Paul Brook
2010-02-24 12:40 ` Michael S. Tsirkin
2010-02-24 15:16 ` Anthony Liguori [this message]
2010-02-24 14:51 ` Anthony Liguori
2010-01-11 17:23 ` [Qemu-devel] [PATCH-RFC 11/13] vhost net support Michael S. Tsirkin
2010-01-12 22:45 ` [Qemu-devel] " Anthony Liguori
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