Displaying 20 results from an estimated 5000 matches similar to: "TCP Tunnel Info"
2012 Jul 12
1
[ovs-discuss] OpenVswitch with KVM virtual machines
I am running NOX controller with a python script that prints out the
destination mac and the source mac for each packet arriving at the now
controller and then floods it out. So here's what happening:
With em1 connected, all the packets that arrive at em1 are coming to the
controller and printing out the details. However, without em1 connected to
the OVS, when I have the following setup:
2015 Oct 06
1
rfc: vhost user enhancements for vm2vm communication
Hi Michael,
Looks like the discussions tapered off, but do you have a plan to
implement this if people are eventually fine with it? We want to
extend this to support multiple VMs.
On Mon, Aug 31, 2015 at 11:35 AM, Nakajima, Jun <jun.nakajima at intel.com> wrote:
> On Mon, Aug 31, 2015 at 7:11 AM, Michael S. Tsirkin <mst at redhat.com> wrote:
>> Hello!
>> During the KVM
2015 Oct 06
1
rfc: vhost user enhancements for vm2vm communication
Hi Michael,
Looks like the discussions tapered off, but do you have a plan to
implement this if people are eventually fine with it? We want to
extend this to support multiple VMs.
On Mon, Aug 31, 2015 at 11:35 AM, Nakajima, Jun <jun.nakajima at intel.com> wrote:
> On Mon, Aug 31, 2015 at 7:11 AM, Michael S. Tsirkin <mst at redhat.com> wrote:
>> Hello!
>> During the KVM
2015 Sep 01
1
[Qemu-devel] rfc: vhost user enhancements for vm2vm communication
Hi Michael,
When you talk about VFIO in guest, is it with a purely emulated IOMMU in Qemu?
Also, I am not clear on the following points:
1. How transient memory would be mapped using BAR in the backend VM
2. How would the backend VM update the dirty page bitmap for the frontend VM
Regards
Varun
> -----Original Message-----
> From: qemu-devel-bounces+varun.sethi=freescale.com at nongnu.org
2015 Sep 01
1
[Qemu-devel] rfc: vhost user enhancements for vm2vm communication
Hi Michael,
When you talk about VFIO in guest, is it with a purely emulated IOMMU in Qemu?
Also, I am not clear on the following points:
1. How transient memory would be mapped using BAR in the backend VM
2. How would the backend VM update the dirty page bitmap for the frontend VM
Regards
Varun
> -----Original Message-----
> From: qemu-devel-bounces+varun.sethi=freescale.com at nongnu.org
2014 Nov 12
3
Put virbr0 in promiscusous
Hi ,
I have two virtual machines VM1 and VM2. Then I have added eth0 of my VM
to 'default' network.
Use case :-
I want to monitor all traffic on virbr0('default' network).
Steps followed :-
1. Add VM1 eth0 to virbr0
2. Add VM2 eth1 to virbr0
3. brctl setageing ovsbr0 0 ..(To put bridge in promiscuous)
Now I am running tcpdump on eth1 of VM2 and trying to ping
2015 Sep 01
1
rfc: vhost user enhancements for vm2vm communication
On Mon, Aug 31, 2015 at 11:35:55AM -0700, Nakajima, Jun wrote:
> On Mon, Aug 31, 2015 at 7:11 AM, Michael S. Tsirkin <mst at redhat.com> wrote:
> > Hello!
> > During the KVM forum, we discussed supporting virtio on top
> > of ivshmem. I have considered it, and came up with an alternative
> > that has several advantages over that - please see below.
> >
2015 Sep 01
1
rfc: vhost user enhancements for vm2vm communication
On Mon, Aug 31, 2015 at 11:35:55AM -0700, Nakajima, Jun wrote:
> On Mon, Aug 31, 2015 at 7:11 AM, Michael S. Tsirkin <mst at redhat.com> wrote:
> > Hello!
> > During the KVM forum, we discussed supporting virtio on top
> > of ivshmem. I have considered it, and came up with an alternative
> > that has several advantages over that - please see below.
> >
2014 Aug 06
2
Re: [libvirt] libvirt external disk-only snapshot will pause the VM?
On Wed, Aug 6, 2014 at 12:27 PM, Eric Blake <eblake@redhat.com> wrote:
> On 08/06/2014 10:06 AM, Yuanzhen Gu wrote:
> > yes, I got your point, thanks very much Eric.
>
> not entirely, because you still top-posted.
>
> got it entirely this time, not top-posted.
> >
> > If I want to take a distributed snapshot, which need pause all the VMs
> and
>
2015 Apr 22
5
Zerocopy VM-to-VM networking using virtio-net
[It may be necessary to remove virtio-dev at lists.oasis-open.org from CC
if you are a non-TC member.]
Hi,
Some modern networking applications bypass the kernel network stack so
that rx/tx rings and DMA buffers can be directly mapped. This is
typical in DPDK applications where virtio-net currently is one of
several NIC choices.
Existing virtio-net implementations are not optimized for VM-to-VM
2015 Apr 22
5
Zerocopy VM-to-VM networking using virtio-net
[It may be necessary to remove virtio-dev at lists.oasis-open.org from CC
if you are a non-TC member.]
Hi,
Some modern networking applications bypass the kernel network stack so
that rx/tx rings and DMA buffers can be directly mapped. This is
typical in DPDK applications where virtio-net currently is one of
several NIC choices.
Existing virtio-net implementations are not optimized for VM-to-VM
2014 Feb 25
2
[PATCH net] vhost: net: switch to use data copy if pending DMAs exceed the limit
We used to stop the handling of tx when the number of pending DMAs
exceeds VHOST_MAX_PEND. This is used to reduce the memory occupation
of both host and guest. But it was too aggressive in some cases, since
any delay or blocking of a single packet may delay or block the guest
transmission. Consider the following setup:
+-----+ +-----+
| VM1 | | VM2 |
+--+--+
2014 Feb 25
2
[PATCH net] vhost: net: switch to use data copy if pending DMAs exceed the limit
We used to stop the handling of tx when the number of pending DMAs
exceeds VHOST_MAX_PEND. This is used to reduce the memory occupation
of both host and guest. But it was too aggressive in some cases, since
any delay or blocking of a single packet may delay or block the guest
transmission. Consider the following setup:
+-----+ +-----+
| VM1 | | VM2 |
+--+--+
2012 Mar 22
1
Does libvirt check MCS labels during hot-add disk image ?
Libvirt doesn't care about security during hot add disk images. It even
accepts addition of disk images of other guest running on the host.
Steps followed to create this scenario :
Started two VMs with following security configurations:
vm1:
<seclabel type='dynamic' model='selinux' relabel='yes'>
2015 Apr 27
1
[virtio-dev] Zerocopy VM-to-VM networking using virtio-net
Am 2015-04-27 um 12:17 schrieb Stefan Hajnoczi:
> On Sun, Apr 26, 2015 at 2:24 PM, Luke Gorrie <luke at snabb.co> wrote:
>> On 24 April 2015 at 15:22, Stefan Hajnoczi <stefanha at gmail.com> wrote:
>>>
>>> The motivation for making VM-to-VM fast is that while software
>>> switches on the host are efficient today (thanks to vhost-user), there
2014 Mar 07
5
[PATCH net V2] vhost: net: switch to use data copy if pending DMAs exceed the limit
We used to stop the handling of tx when the number of pending DMAs
exceeds VHOST_MAX_PEND. This is used to reduce the memory occupation
of both host and guest. But it was too aggressive in some cases, since
any delay or blocking of a single packet may delay or block the guest
transmission. Consider the following setup:
+-----+ +-----+
| VM1 | | VM2 |
+--+--+
2014 Mar 07
5
[PATCH net V2] vhost: net: switch to use data copy if pending DMAs exceed the limit
We used to stop the handling of tx when the number of pending DMAs
exceeds VHOST_MAX_PEND. This is used to reduce the memory occupation
of both host and guest. But it was too aggressive in some cases, since
any delay or blocking of a single packet may delay or block the guest
transmission. Consider the following setup:
+-----+ +-----+
| VM1 | | VM2 |
+--+--+
2014 Mar 13
3
[PATCH net V2] vhost: net: switch to use data copy if pending DMAs exceed the limit
On 03/10/2014 04:03 PM, Michael S. Tsirkin wrote:
> On Fri, Mar 07, 2014 at 01:28:27PM +0800, Jason Wang wrote:
>> > We used to stop the handling of tx when the number of pending DMAs
>> > exceeds VHOST_MAX_PEND. This is used to reduce the memory occupation
>> > of both host and guest. But it was too aggressive in some cases, since
>> > any delay or blocking
2014 Mar 13
3
[PATCH net V2] vhost: net: switch to use data copy if pending DMAs exceed the limit
On 03/10/2014 04:03 PM, Michael S. Tsirkin wrote:
> On Fri, Mar 07, 2014 at 01:28:27PM +0800, Jason Wang wrote:
>> > We used to stop the handling of tx when the number of pending DMAs
>> > exceeds VHOST_MAX_PEND. This is used to reduce the memory occupation
>> > of both host and guest. But it was too aggressive in some cases, since
>> > any delay or blocking
2014 Feb 26
2
[PATCH net] vhost: net: switch to use data copy if pending DMAs exceed the limit
On 02/25/2014 09:57 PM, Michael S. Tsirkin wrote:
> On Tue, Feb 25, 2014 at 02:53:58PM +0800, Jason Wang wrote:
>> We used to stop the handling of tx when the number of pending DMAs
>> exceeds VHOST_MAX_PEND. This is used to reduce the memory occupation
>> of both host and guest. But it was too aggressive in some cases, since
>> any delay or blocking of a single packet