[dpdk-dev] Query : Does Binding with vfio-pci is supported inside qemu-kvm guest/vm instance.?

[Thanneeru Srinivasulu]

Hi Everyone.

I did attached pice  to Guest VM using vfio-pci with qemu command, and then
tried binding the pcie bdf with vfio-pci, observing binding failure with
vfio-pci.

Where as when tryied with igb_uio, everything works fine.

Does Binding with vfio-pci is supported inside VM/guest?

Regards
Srinivasulu

Re: [dpdk-dev] Query : Does Binding with vfio-pci is supported inside qemu-kvm guest/vm instance.?

[Thanneeru Srinivasulu]

Thanks Bruce..

On Tue, Mar 12, 2019 at 3:08 PM Bruce Richardson
 wrote:
>
> On Tue, Mar 12, 2019 at 10:57:55AM +0530, Thanneeru Srinivasulu wrote:
> > Hi Everyone.
> >
> > I did attached pice  to Guest VM using vfio-pci with qemu command, and then
> > tried binding the pcie bdf with vfio-pci, observing binding failure with
> > vfio-pci.
> >
> > Where as when tryied with igb_uio, everything works fine.
> >
> > Does Binding with vfio-pci is supported inside VM/guest?
> >
> vfio support requires the presence of an IOMMU, and you generally don't
> have an IOMMU available in a VM.
>
> /Bruce



-- 
Regards,
Srinivas

[dpdk-dev] Changes between two releases (16.11 with 17.11)

[Thanneeru Srinivasulu]

Hi all,

Is there way to check change log specific to dpdk core, between two releases?
Say, how can I check for changes from 16.11 to 17.11 specific to dpdk.
(excluding device specific changes).


-- 
Regards,
Srinivas