Re: [Qemu-devel] Guest IOMMU and Cisco usnic

2014-02-12 Thread Alex Williamson
On Wed, 2014-02-12 at 23:51 +0100, Benoît Canet wrote: > The Wednesday 12 Feb 2014 à 12:34:25 (-0700), Alex Williamson wrote : > > On Wed, 2014-02-12 at 19:10 +0100, Benoît Canet wrote: > > > Hi Alex, > > > > > > After the IRC conversation we had a few days ago I understood that guest > > > IOMMU

Re: [Qemu-devel] Guest IOMMU and Cisco usnic

2014-02-12 Thread Benoît Canet
The Wednesday 12 Feb 2014 à 12:34:25 (-0700), Alex Williamson wrote : > On Wed, 2014-02-12 at 19:10 +0100, Benoît Canet wrote: > > Hi Alex, > > > > After the IRC conversation we had a few days ago I understood that guest > > IOMMU > > was not implemented. > > > > I have a real use case for it: >

Re: [Qemu-devel] Guest IOMMU and Cisco usnic

2014-02-12 Thread Benoît Canet
The Wednesday 12 Feb 2014 à 12:34:25 (-0700), Alex Williamson wrote : > On Wed, 2014-02-12 at 19:10 +0100, Benoît Canet wrote: > > Hi Alex, > > > > After the IRC conversation we had a few days ago I understood that guest > > IOMMU > > was not implemented. > > > > I have a real use case for it: >

Re: [Qemu-devel] Guest IOMMU and Cisco usnic

2014-02-12 Thread Alex Williamson
On Wed, 2014-02-12 at 19:10 +0100, Benoît Canet wrote: > Hi Alex, > > After the IRC conversation we had a few days ago I understood that guest IOMMU > was not implemented. > > I have a real use case for it: > > Cisco usnic allow to write MPI applications while driving the network card in > users

[Qemu-devel] Guest IOMMU and Cisco usnic

2014-02-12 Thread Benoît Canet
Hi Alex, After the IRC conversation we had a few days ago I understood that guest IOMMU was not implemented. I have a real use case for it: Cisco usnic allow to write MPI applications while driving the network card in userspace in order to optimize the latency. It's made for compute clusters.