From: Bruce Richardson <bruce.richardson@intel.com>
To: Thanneeru Srinivasulu <dev.srinivasulu@gmail.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 09:38:27 +0000 [thread overview]
Message-ID: <20190312093826.GA914268@bricha3-MOBL.ger.corp.intel.com> (raw)
In-Reply-To: <CAMtOeK+i0XhNLci79FH-fTxHSGejj8+upMZ4Wvhpt_uxEu5WNw@mail.gmail.com>
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
next prev parent reply other threads:[~2019-03-12 9:38 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 [this message]
2019-03-12 9:42 ` Thanneeru Srinivasulu
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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