Re: [dpdk-dev] Can xenvirt pmd work in xen guest (aka DomU) without xen-vhost in Dom0 ?

[Bill Bonaparte <programme110@gmail.com>]

Hi Jianfeng,
 Thank you for replying, I appreciate so much for this.
  we are trying to run our dpdk application on AWS cloud which use xen
platform.
  for this case, what should I do to support AWS cloud ?
  Is there any way to do this ?

On Sat, Sep 30, 2017 at 4:53 PM, Tan, Jianfeng <jianfeng.tan@intel.com>
wrote:

> Hi Bill
>
>
> On 9/30/2017 4:47 PM, Bill Bonaparte wrote:
>
>> Hi, everybody:
>>       I am trying to run dpdk in xen guest, after trying dpdk17.05 without
>> success, I tried dpdk16.04 again.  and it's sucessful to run testpmd this
>> time. but it can't receive any packets.
>>       the command I used is :
>> ./testpmd -l 1,2 -n 4 --vdev="eth_xenvirt0,mac=a6:38:57:e8:d5:be"
>> --vdev="eth_xenvirt1,mac=32:f1:42:55:94:74" -- --total-num-mbufs=2048
>>
>> I read the xen guide again, I found the guide says:
>> DPDK provides a para-virtualization packet switching solution, based on
>> the
>> Xen hypervisor’s Grant Table, Note 1, which provides simple and fast
>> packet
>> switching capability between guest domains and host domain based on MAC
>> address or VLAN tag. This solution is comprised of two components; a Poll
>> Mode Driver (PMD) as the front end in the guest domain and a switching
>> back
>> end in the host domain.
>>
>> does it mean that dpdk running in DomU must cooperate with xen-vhost in
>> Dom0 ?
>>
>
> Yes, we need to run vhost_xen at dom0 so that xenvirt at domU can work.
> But it has been long lack of test, not sure of it still works.
>
> And FYI, we are going to remove xen support (dom0, xenvirt, vhost_xen) in
> the coming release.
>
> Thanks,
> Jianfeng
>
>
> I really need your help.
>> I appreciate any reply from you .
>>
>
>