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From: Thanneeru Srinivasulu <dev.srinivasulu@gmail.com>
To: Bruce Richardson <bruce.richardson@intel.com>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] Query : Does Binding with vfio-pci is supported inside qemu-kvm guest/vm instance.?
Date: Tue, 12 Mar 2019 15:12:44 +0530	[thread overview]
Message-ID: <CAMtOeK+x5mTM8xf_JnXY9ZtZjqkovQ+DPNoWf_K0hKyZnO0wWQ@mail.gmail.com> (raw)
In-Reply-To: <20190312093826.GA914268@bricha3-MOBL.ger.corp.intel.com>

Thanks Bruce..

On Tue, Mar 12, 2019 at 3:08 PM Bruce Richardson
<bruce.richardson@intel.com> 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

  reply	other threads:[~2019-03-12  9:42 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-12  5:27 Thanneeru Srinivasulu
2019-03-12  9:38 ` Bruce Richardson
2019-03-12  9:42   ` Thanneeru Srinivasulu [this message]
2019-03-12  9:54     ` Jason Wang
2019-03-12 10:20       ` Bruce Richardson
2019-03-12 10:57         ` Burakov, Anatoly
     [not found]           ` <CGME20190312110957eucas1p1af74c8d26bf80fd815847ed8086a1e78@eucas1p1.samsung.com>
2019-03-12 11:09             ` Ilya Maximets
2019-04-02 10:38           ` John Sucaet
2019-04-02 10:38             ` John Sucaet
2019-04-02 13:38             ` Burakov, Anatoly
2019-04-02 13:38               ` Burakov, Anatoly
2019-04-03  7:49               ` John Sucaet
2019-04-03  7:49                 ` John Sucaet
2019-04-03  7:54                 ` Maxime Coquelin
2019-04-03  7:54                   ` Maxime Coquelin
2019-04-04  8:23                   ` John Sucaet
2019-04-04  8:23                     ` John Sucaet

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