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Re: [Qemu-devel] [PATCH v3 2/2] vhost user: Add RARP injection for legac
From: |
Michael S. Tsirkin |
Subject: |
Re: [Qemu-devel] [PATCH v3 2/2] vhost user: Add RARP injection for legacy guest |
Date: |
Wed, 17 Jun 2015 08:42:20 +0200 |
On Wed, Jun 17, 2015 at 12:16:09PM +0800, Jason Wang wrote:
>
>
> On 06/16/2015 04:16 PM, Thibaut Collet wrote:
> > For a live migration my understanding is there are a suspend resume
> > operation:
> > - The VM image is regularly copied from the old host to the new one
> > (modified pages due to VM operation can be copied several time)
> > - As soon as there are only few pages to copy the VM is suspended on
> > the old host, the last pages are copied, and the VM is resumed on the
> > new host. Migration is not totally transparent to guest that has a
> > small period of unavailability.
>
> But guest is not involved in the any of the migration process. Unless
> the performance drop, guest should not notice the migration at all.
It is easy for backend to detect that guest started using the device,
e.g. detect DRIVER_OK status set.
I think that's enough to send RARPs.
> Btw, please use bottom-posting which is easier for reader to understand
> the context.
>
> Thanks
I agree, please don't top-post.
--
MST
- Re: [Qemu-devel] [PATCH v3 2/2] vhost user: Add RARP injection for legacy guest, (continued)
- Re: [Qemu-devel] [PATCH v3 2/2] vhost user: Add RARP injection for legacy guest, Jason Wang, 2015/06/15
- Re: [Qemu-devel] [PATCH v3 2/2] vhost user: Add RARP injection for legacy guest, Michael S. Tsirkin, 2015/06/15
- Re: [Qemu-devel] [PATCH v3 2/2] vhost user: Add RARP injection for legacy guest, Thibaut Collet, 2015/06/15
- Re: [Qemu-devel] [PATCH v3 2/2] vhost user: Add RARP injection for legacy guest, Michael S. Tsirkin, 2015/06/15
- Re: [Qemu-devel] [PATCH v3 2/2] vhost user: Add RARP injection for legacy guest, Thibaut Collet, 2015/06/15
- Re: [Qemu-devel] [PATCH v3 2/2] vhost user: Add RARP injection for legacy guest, Jason Wang, 2015/06/16
- Re: [Qemu-devel] [PATCH v3 2/2] vhost user: Add RARP injection for legacy guest, Thibaut Collet, 2015/06/16
- Re: [Qemu-devel] [PATCH v3 2/2] vhost user: Add RARP injection for legacy guest, Jason Wang, 2015/06/16
- Re: [Qemu-devel] [PATCH v3 2/2] vhost user: Add RARP injection for legacy guest, Thibaut Collet, 2015/06/16
- Re: [Qemu-devel] [PATCH v3 2/2] vhost user: Add RARP injection for legacy guest, Jason Wang, 2015/06/17
- Re: [Qemu-devel] [PATCH v3 2/2] vhost user: Add RARP injection for legacy guest,
Michael S. Tsirkin <=
- Re: [Qemu-devel] [PATCH v3 2/2] vhost user: Add RARP injection for legacy guest, Thibaut Collet, 2015/06/17
- Re: [Qemu-devel] [PATCH v3 2/2] vhost user: Add RARP injection for legacy guest, Thibaut Collet, 2015/06/18
- Re: [Qemu-devel] [PATCH v3 2/2] vhost user: Add RARP injection for legacy guest, Jason Wang, 2015/06/22
- Re: [Qemu-devel] [PATCH v3 2/2] vhost user: Add RARP injection for legacy guest, Michael S. Tsirkin, 2015/06/23
- Re: [Qemu-devel] [PATCH v3 2/2] vhost user: Add RARP injection for legacy guest, Jason Wang, 2015/06/24
- Re: [Qemu-devel] [PATCH v3 2/2] vhost user: Add RARP injection for legacy guest, Michael S. Tsirkin, 2015/06/24
- Re: [Qemu-devel] [PATCH v3 2/2] vhost user: Add RARP injection for legacy guest, Jason Wang, 2015/06/25
- Re: [Qemu-devel] [PATCH v3 2/2] vhost user: Add RARP injection for legacy guest, Thibaut Collet, 2015/06/25
- Re: [Qemu-devel] [PATCH v3 2/2] vhost user: Add RARP injection for legacy guest, Michael S. Tsirkin, 2015/06/25
- Re: [Qemu-devel] [PATCH v3 2/2] vhost user: Add RARP injection for legacy guest, Thibaut Collet, 2015/06/25