Re: [vfio-users] Nested VFIO with QEMU

2019-11-05 Thread Samuel Ortiz
On Tue, Nov 05, 2019 at 04:58:34PM -0700, Alex Williamson wrote: > On Wed, 6 Nov 2019 00:29:52 +0100 > Samuel Ortiz wrote: > > > On Tue, Nov 05, 2019 at 01:21:48PM -0700, Alex Williamson wrote: > > > On Fri, 18 Oct 2019 05:48:49 + > > > "Boeuf, Sebastien" wrote: > > > > > > > Hi folks, >

Re: [vfio-users] Nested VFIO with QEMU

2019-11-05 Thread Alex Williamson
ication below. Thanks, Alex On Mon, 28 Oct 2019 08:13:23 + "Liu, Yi L" wrote: > Hi Sebastien, > > That’s great it works for you. I remember there was an effort > to fix it in community. But I cannot recall if it was documented. > If not, I think I can co-work wi

Re: [vfio-users] Nested VFIO with QEMU

2019-11-05 Thread Samuel Ortiz
On Tue, Nov 05, 2019 at 01:21:48PM -0700, Alex Williamson wrote: > On Fri, 18 Oct 2019 05:48:49 + > "Boeuf, Sebastien" wrote: > > > Hi folks, > > > > I have been recently working with VFIO, and particularly trying to > > achieve device passthrough through multiple layers of virtualization. >

Re: [vfio-users] Nested VFIO with QEMU

2019-11-05 Thread Alex Williamson
On Fri, 18 Oct 2019 05:48:49 + "Boeuf, Sebastien" wrote: > Hi folks, > > I have been recently working with VFIO, and particularly trying to > achieve device passthrough through multiple layers of virtualization. > > I wanted to assess QEMU's performances with nested VFIO, using the > emulat

[vfio-users] Nested VFIO with QEMU

2019-10-18 Thread Boeuf, Sebastien
Hi folks, I have been recently working with VFIO, and particularly trying to achieve device passthrough through multiple layers of virtualization. I wanted to assess QEMU's performances with nested VFIO, using the emulated Intel IOMMU device. Unfortunately, I cannot make any of my physical device