Re: [Qemu-devel] dpdk/vpp and cross-version migration for vhost

2016-12-09 Thread Daniel P. Berrange
On Fri, Dec 09, 2016 at 05:45:13PM +0100, Maxime Coquelin wrote: > > > On 12/09/2016 03:42 PM, Daniel P. Berrange wrote: > > On Fri, Dec 09, 2016 at 02:35:58PM +0100, Maxime Coquelin wrote: > > > ++Daniel for libvirt > > > > > > On 11/24/2016 07:31 AM, Yuanhan Liu wrote: > > > > > > > > > > >

Re: [Qemu-devel] dpdk/vpp and cross-version migration for vhost

2016-12-09 Thread Maxime Coquelin
On 12/09/2016 03:42 PM, Daniel P. Berrange wrote: On Fri, Dec 09, 2016 at 02:35:58PM +0100, Maxime Coquelin wrote: ++Daniel for libvirt On 11/24/2016 07:31 AM, Yuanhan Liu wrote: As version here is an opaque string for libvirt and qemu, anything can be used - but I suggest either a list of

Re: [Qemu-devel] dpdk/vpp and cross-version migration for vhost

2016-12-09 Thread Daniel P. Berrange
On Fri, Dec 09, 2016 at 02:35:58PM +0100, Maxime Coquelin wrote: > ++Daniel for libvirt > > On 11/24/2016 07:31 AM, Yuanhan Liu wrote: > > > > > > > > > As version here is an opaque string for libvirt and qemu, > > > > > > > > > > > > > > >>anything can be used - but I suggest either a list > > >

Re: [Qemu-devel] dpdk/vpp and cross-version migration for vhost

2016-12-09 Thread Maxime Coquelin
++Daniel for libvirt On 11/24/2016 07:31 AM, Yuanhan Liu wrote: As version here is an opaque string for libvirt and qemu, > > > > > >>anything can be used - but I suggest either a list > > > > > >>of values defining the interface, e.g. > > > > > >>any_layout=on,max_ring=256 > > > > > >>or a

Re: [Qemu-devel] dpdk/vpp and cross-version migration for vhost

2016-11-23 Thread Yuanhan Liu
On Tue, Nov 22, 2016 at 04:53:05PM +0200, Michael S. Tsirkin wrote: > > > You keep assuming that you have the VM started first and > > > figure out things afterwards, but this does not work. > > > > > > Think about a cluster of machines. You want to start a VM in > > > a way that will ensure

Re: [Qemu-devel] dpdk/vpp and cross-version migration for vhost

2016-11-22 Thread Michael S. Tsirkin
On Tue, Nov 22, 2016 at 09:02:23PM +0800, Yuanhan Liu wrote: > On Thu, Nov 17, 2016 at 07:37:09PM +0200, Michael S. Tsirkin wrote: > > On Thu, Nov 17, 2016 at 05:49:36PM +0800, Yuanhan Liu wrote: > > > On Thu, Nov 17, 2016 at 09:47:09AM +0100, Maxime Coquelin wrote: > > > > > > > > > > > > On

Re: [Qemu-devel] dpdk/vpp and cross-version migration for vhost

2016-11-22 Thread Yuanhan Liu
On Thu, Nov 17, 2016 at 07:37:09PM +0200, Michael S. Tsirkin wrote: > On Thu, Nov 17, 2016 at 05:49:36PM +0800, Yuanhan Liu wrote: > > On Thu, Nov 17, 2016 at 09:47:09AM +0100, Maxime Coquelin wrote: > > > > > > > > > On 11/17/2016 09:29 AM, Yuanhan Liu wrote: > > > >As usaual, sorry for late

Re: [Qemu-devel] dpdk/vpp and cross-version migration for vhost

2016-11-17 Thread Michael S. Tsirkin
On Thu, Nov 17, 2016 at 05:49:36PM +0800, Yuanhan Liu wrote: > On Thu, Nov 17, 2016 at 09:47:09AM +0100, Maxime Coquelin wrote: > > > > > > On 11/17/2016 09:29 AM, Yuanhan Liu wrote: > > >As usaual, sorry for late response :/ > > > > > >On Thu, Oct 13, 2016 at 08:50:52PM +0300, Michael S.

Re: [Qemu-devel] dpdk/vpp and cross-version migration for vhost

2016-11-17 Thread Yuanhan Liu
On Thu, Nov 17, 2016 at 09:47:09AM +0100, Maxime Coquelin wrote: > > > On 11/17/2016 09:29 AM, Yuanhan Liu wrote: > >As usaual, sorry for late response :/ > > > >On Thu, Oct 13, 2016 at 08:50:52PM +0300, Michael S. Tsirkin wrote: > >>Hi! > >>So it looks like we face a problem with cross-version

Re: [Qemu-devel] dpdk/vpp and cross-version migration for vhost

2016-11-17 Thread Maxime Coquelin
On 11/17/2016 09:29 AM, Yuanhan Liu wrote: As usaual, sorry for late response :/ On Thu, Oct 13, 2016 at 08:50:52PM +0300, Michael S. Tsirkin wrote: Hi! So it looks like we face a problem with cross-version migration when using vhost. It's not new but became more acute with the advent of

Re: [Qemu-devel] dpdk/vpp and cross-version migration for vhost

2016-11-17 Thread Yuanhan Liu
As usaual, sorry for late response :/ On Thu, Oct 13, 2016 at 08:50:52PM +0300, Michael S. Tsirkin wrote: > Hi! > So it looks like we face a problem with cross-version > migration when using vhost. It's not new but became more > acute with the advent of vhost user. > > For users to be able to

Re: [Qemu-devel] dpdk/vpp and cross-version migration for vhost

2016-11-16 Thread Maxime Coquelin
Hi Michael, On 10/13/2016 07:50 PM, Michael S. Tsirkin wrote: Hi! So it looks like we face a problem with cross-version migration when using vhost. It's not new but became more acute with the advent of vhost user. For users to be able to migrate between different versions of the hypervisor the

[Qemu-devel] dpdk/vpp and cross-version migration for vhost

2016-10-13 Thread Michael S. Tsirkin
Hi! So it looks like we face a problem with cross-version migration when using vhost. It's not new but became more acute with the advent of vhost user. For users to be able to migrate between different versions of the hypervisor the interface exposed to guests by hypervisor must stay unchanged.