Thanks for the tip! On Mon, Aug 6, 2018 at 1:48 PM Laine Stump <la...@redhat.com> wrote:
> On 07/27/2018 11:51 AM, Quincy Wofford wrote: > > I'm attempting PCI-passthrough from host to guest on an HP ProLiant > > 380P, which has an outdated BIOS (2014), but it does support VT-d. I'm > > running CentOS 7, kernel 3.10.0-862.9.1.el7.x86_64. > > > > I have an Intel 82580 NIC installed with 4 ports. Each of these ports is > > in its own IOMMU group (I enabled SR-IOV at the BIOS, which might be the > > reason they show up separately) > > > > After detaching and adding a 'hostdev' device with the appropriate pci > > address, I attempt to start my VM. I get " failed to set iommu for > > container: Operation not permitted". As recommended here > > (http://vfio.blogspot.com/2014/08/vfiovga-faq.html) I parsed dmesg in an > > attempt to find: > > > > ------------------- > > No interrupt remapping support. Use the module param > > "allow_unsafe_interrupts" to enable VFIO IOMMU support on this platform > > ------------------- > > ...but nothing similar exists in my logs. > > > > Since this device is showing up in its own IOMMU group, I assume ACS > > override won't get me any further. In any case, it is not an option for > > me to leave ACS override on. I can turn it on for testing, the server is > > not currently in production. > > > > Any idea why this could be failing? > > If you haven't yet found a solution to this problem, I would recommend > sending your question either to vfio-us...@redhat.com, or asking in the > #vfio-users channel on irc.freenode.net > >
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