[dpdk-dev] Using qemu-system-x86_64 of KVM sourceforge project versus qemu-system-x86_64 of http://www.qemu.org/

[dpdk-dev] Using qemu-system-x86_64 of KVM sourceforge project versus qemu-system-x86_64 of http://www.qemu.org/

[Kevin Wilson]

Hi,
I am trying to use DPDK  SRIOV passthrough with DPDK on Intel NICs.
I am following the instructions in "Network Interface Controller Drivers", in
http://fast.dpdk.org/doc/pdf-guides/nics-16.07.pdf

I saw in "11.2 Setting Up a KVM Virtual Machine Monitor" in this pdf
that it says to
download qemu-kvm-0.14.0 from
http://sourceforge.net/projects/kvm/files/qemu-kvm/
,build it and run /usr/local/kvm/bin/qemu-system-x86_64

My question is:
there is also qemu-system-x86_64 executable in qemu Fedora rpms.
It is built from the qemu project which is hosted on http://www.qemu.org.
I made a brief comparison between the trees of both these projects
(qemu and KVM qemu-kvm) and
they seem different.

Should SRIOV passthrough, as described in the aforementioned DPDK
nics-16.07.pdf, work also with this qemu-system-x86_64 from the qemu
project?
or is using the qemu-system-x86_64 of the qemu project is not good
enough, and using
KVM qemu-system-x86_64 from
http://sourceforge.net/projects/kvm/files/qemu-kvm/ is a must ?

Regards,
Kevin

Re: [dpdk-dev] Using qemu-system-x86_64 of KVM sourceforge project versus qemu-system-x86_64 of http://www.qemu.org/

[Mauricio Vasquez]

Hi Kevin,

On 08/04/2016 08:55 AM, Kevin Wilson wrote:
> Hi,
> I am trying to use DPDK  SRIOV passthrough with DPDK on Intel NICs.
> I am following the instructions in "Network Interface Controller Drivers", in
> http://fast.dpdk.org/doc/pdf-guides/nics-16.07.pdf
>
> I saw in "11.2 Setting Up a KVM Virtual Machine Monitor" in this pdf
> that it says to
> download qemu-kvm-0.14.0 from
> http://sourceforge.net/projects/kvm/files/qemu-kvm/
> ,build it and run /usr/local/kvm/bin/qemu-system-x86_64
>
> My question is:
> there is also qemu-system-x86_64 executable in qemu Fedora rpms.
> It is built from the qemu project which is hosted on http://www.qemu.org.
> I made a brief comparison between the trees of both these projects
> (qemu and KVM qemu-kvm) and
> they seem different.
>
> Should SRIOV passthrough, as described in the aforementioned DPDK
> nics-16.07.pdf, work also with this qemu-system-x86_64 from the qemu
> project?
> or is using the qemu-system-x86_64 of the qemu project is not good
> enough, and using
> KVM qemu-system-x86_64 from
> http://sourceforge.net/projects/kvm/files/qemu-kvm/ is a must ?
I have used qemu-system-x86_64, (directly downloaded and compiled from 
http://www.qemu.org) without any issue, be sure that kvm is enabled by 
setting "accel=kvm" in the qemu command line.

> Regards,
> Kevin
>
Regards,

Mauricio V,

Re: [dpdk-dev] Using qemu-system-x86_64 of KVM sourceforge project versus qemu-system-x86_64 of http://www.qemu.org/

[Kevin Wilson]

Hi Mauricio,
Thanks!

>be sure that kvm is enabled by
> setting "accel=kvm" in the qemu command line.

Isn't "--enable-kvm" intended for that ?

Kevin

Re: [dpdk-dev] Using qemu-system-x86_64 of KVM sourceforge project versus qemu-system-x86_64 of http://www.qemu.org/

[Mauricio Vasquez]

On 08/04/2016 10:27 AM, Kevin Wilson wrote:
> Hi Mauricio,
> Thanks!
>
>> be sure that kvm is enabled by
>> setting "accel=kvm" in the qemu command line.
> Isn't "--enable-kvm" intended for that ?

Sorry, I meant "-machine accel=kvm".
I don't know what is the exact difference but enable-kvm should also work.
>
> Kevin
>