Actually, I get the same error if I enter a PCI address completely random
(for example 04.01.5, which doesn't exist in my system)
2015-05-22 12:00 GMT-07:00 Bandan Das <b...@makefile.in>:
> Gabriel Laupre <glau...@gmail.com> writes:
>
> >>To rule out if it's a problem with your guest xml. Let me know if you are
> > interested and I will write down the steps.
> >
> > I am way more than interested to try that :) Thanks a lot
>
> Ok, Based on your command line below, I am assuming that you have a
> multifunction card. You might need to bind all functions to the
> stub driver if they are in the same iommu group or else vfio will complain.
>
> virsh nodedev-list | grep 04_10
>
> The output would be something like
> pci_0000_04_10_0
> pci_0000_04_10_1 and so on.
>
> For each, assuming they are the same card, you have to bind them to the
> stub driver:
> virsh nodedev-detach pci_0000_04_10_0
> virsh nodedev-detach pci_0000_04_10_1 ...
>
> Shut down all guests and make sure no qemu processes are running
> and then run qemu:
> /usr/libexec/qemu-kvm -device
> vfio-pci,host=04:10.4,id=hostdev0,bus=pci.0,addr=0x3 -monitor stdio
>
> I think this should be enough to spit out the error, there's no need to
> actually
> boot a guest image.
>
> > 2015-05-22 10:46 GMT-07:00 Bandan Das <b...@makefile.in>:
> >
> >> Gabriel Laupre <glau...@gmail.com> writes:
> >>
> >> >> Thanks for the update. Did you get a chance to run qemu standalone
> >> > without libvirt?
> >> > How can I do that, what are the purpose to do so and why to try that?
> >> > (thank you ^^)
> >> To rule out if it's a problem with your guest xml. Let me know if you
> are
> >> interested and I will write down the steps.
> >>
> >> > 2015-05-21 13:32 GMT-07:00 Bandan Das <b...@makefile.in>:
> >> >
> >> >> Gabriel Laupre <glau...@gmail.com> writes:
> >> >>
> >> >> >> AppArmor is Debian based, but that doesn't stop you from
> >> >> > running/installing it on other distros
> >> >> >
> >> >> >> $ dmesg | grep apparmor
> >> >> >
> >> >> > The service isn't started nor present in my machine. Thank you for
> the
> >> >> hint
> >> >> > though.
> >> >> > I am still stuck with this error and it is not dependent of my
> Intel
> >> >> NIC, I
> >> >> > used another one and I still got the same error message.
> >> >> > ps: tks to remind me to send to the mailing list:)
> >> >>
> >> >> Thanks for the update. Did you get a chance to run qemu standalone
> >> without
> >> >> libvirt ?
> >> >>
> >> >> > 2015-05-21 12:32 GMT-07:00 Karl Apsite <
> karl.aps...@dornerworks.com>:
> >> >> >
> >> >> >> AppArmor is Debian based, but that doesn't stop you from
> >> >> >> running/installing it
> >> >> >> on other distros
> >> >> >>
> >> >> >> $ dmesg | grep apparmor
> >> >> >>
> >> >> >> On 05/20/2015 02:56 PM, Bandan Das wrote:
> >> >> >> > Gabriel Laupre <glau...@gmail.com> writes:
> >> >> >> >
> >> >> >> >> Mmmhh,
> >> >> >> >> My SELinux is disabled. Is Apparmor not only on debian/ubuntu
> and
> >> >> suse,
> >> >> >> am
> >> >> >> >> I wrong? I have no idea on that :)
> >> >> >> >
> >> >> >> > Yeah, me neither :) I am just trying to rule out all
> possibilities.
> >> >> >> >
> >> >> >> >> 2015-05-20 11:23 GMT-07:00 Bandan Das <b...@makefile.in>:
> >> >> >> >>
> >> >> >> >>> Oh and one more thing! You already answered before but just
> >> wanted
> >> >> to
> >> >> >> >>> confirm
> >> >> >> >>> that you don't have apparmor running, right ?
> >> >> >> >>>
> >> >> >> >>> Bandan Das <b...@makefile.in> writes:
> >> >> >> >>>
> >> >> >> >>>> Gabriel Laupre <glau...@gmail.com> writes:
> >> >> >> >>>>
> >> >> >> >>>>>> Yes, indeed it is. What distro is this ? Do you have
> SELinux
> >> or
> >> >> any
> >> >> >> >>> other
> >> >> >> >>>>> security feature enabled ? Can you please verify that the
> file
> >> >> has a
> >> >> >> >>>>> appropriate label if SELinux is enabled ? (ls -lZ
> >> /dev/vfio/vfio)
> >> >> >> >>>>> My distrib:
> >> >> >> >>>>> [root@peryn5 ~]# cat /proc/version
> >> >> >> >>>>> Linux version 3.10.0-229.1.2.el7.x86_64 (
> >> >> >> >>> buil...@kbuilder.dev.centos.org)
> >> >> >> >>>>> (gcc version 4.8.2 20140120 (Red Hat 4.8.2-16) (GCC) ) #1
> SMP
> >> Fri
> >> >> >> Mar 27
> >> >> >> >>>>> 03:04:26 UTC 2015
> >> >> >> >>>>> [root@peryn5 ~]# cat /etc/centos-release
> >> >> >> >>>>> CentOS Linux release 7.1.1503 (Core)
> >> >> >> >>>>>
> >> >> >> >>>>> [root@peryn5 ~]# ls -lZ /dev/vfio/vfio
> >> >> >> >>>>> crw-rw-rw- root root ?
> >> >> /dev/vfio/vfio
> >> >> >> >>>>>
> >> >> >> >>>>> SELinux is disabled:
> >> >> >> >>>>> [root@peryn5 ~]# getenforce
> >> >> >> >>>>> Disabled
> >> >> >> >>>>>
> >> >> >> >>>>> I guess no other security feature is enabled that I am aware
> >> of. I
> >> >> >> once
> >> >> >> >>> had
> >> >> >> >>>>> a message saying that it can be one of the following issues
> >> >> (listing
> >> >> >> the
> >> >> >> >>>>> 5). So I guess it can be any combination of those issues,
> even
> >> >> >> something
> >> >> >> >>>>> completely different.
> >> >> >> >>>>
> >> >> >> >>>> Ugh, I am out of options! Can you please try a few more
> things:
> >> Can
> >> >> >> you
> >> >> >> >>> try
> >> >> >> >>>> running qemu directly and see if you see the same behavior ?
> If
> >> you
> >> >> >> still
> >> >> >> >>>> haven't tried running as root, please try that too. Also,
> please
> >> >> check
> >> >> >> >>> dmesg
> >> >> >> >>>> for any vfio related errors.
> >> >> >> >>>>
> >> >> >> >>>>> libvirtError: internal error: process exited while
> connecting
> >> to
> >> >> >> >>>>> monitor: 2015-05-19T21:46:21.935043Z qemu-kvm: -device
> >> >> >> >>>>> vfio-pci,host=04:10.4,id=hostdev0,bus=pci.0,addr=0x3: vfio:
> >> >> failed to
> >> >> >> >>>>> open /dev/vfio/vfio: Operation not permitted
> >> >> >> >>>> Well, this is the first error from vfio_connect_container()
> >> when it
> >> >> >> does:
> >> >> >> >>>> fd = qemu_open("/dev/vfio/vfio", O_RDWR);
> >> >> >> >>>> if (fd < 0) {
> >> >> >> >>>> error_report("vfio: failed to open /dev/vfio/vfio:
> %m");
> >> >> >> >>>> ret = -errno;
> >> >> >> >>>> ...
> >> >> >> >>>>
> >> >> >> >>>> The rest are followup errors printed from the other
> functions in
> >> >> the
> >> >> >> >>>> stack due to this error.
> >> >> >> >>>>
> >> >> >> >>>> Bandan
> >> >> >> >>>>
> >> >> >> >>>>> 2015-05-19T21:46:21.935091Z qemu-kvm: -device
> >> >> >> >>>>> vfio-pci,host=04:10.4,id=hostdev0,bus=pci.0,addr=0x3: vfio:
> >> >> failed to
> >> >> >> >>>>> setup container for group 24
> >> >> >> >>>>> 2015-05-19T21:46:21.935107Z qemu-kvm: -device
> >> >> >> >>>>> vfio-pci,host=04:10.4,id=hostdev0,bus=pci.0,addr=0x3: vfio:
> >> >> failed to
> >> >> >> >>>>> get group 24
> >> >> >> >>>>> 2015-05-19T21:46:21.935135Z qemu-kvm: -device
> >> >> >> >>>>> vfio-pci,host=04:10.4,id=hostdev0,bus=pci.0,addr=0x3: Device
> >> >> >> >>>>> initialization failed.
> >> >> >> >>>>> 2015-05-19T21:46:21.935157Z qemu-kvm: -device
> >> >> >> >>>>> vfio-pci,host=04:10.4,id=hostdev0,bus=pci.0,addr=0x3: Device
> >> >> >> >>>>> 'vfio-pci' could not be initialized
> >> >> >> >>>>>
> >> >> >> >>>>>
> >> >> >> >>>>>
> >> >> >> >>>>>
> >> >> >> >>>>> 2015-05-19 21:17 GMT-08:00 Bandan Das <b...@makefile.in>:
> >> >> >> >>>>>
> >> >> >> >>>>>>
> >> >> >> >>>>>>> On May 20, 2015, at 12:29 AM, Gabriel Laupre <
> >> glau...@gmail.com
> >> >> >
> >> >> >> >>> wrote:
> >> >> >> >>>>>>>
> >> >> >> >>>>>>> Thank Bandan,
> >> >> >> >>>>>>>
> >> >> >> >>>>>>>
> >> >> >> >>>>>>>> Assuming you are on an intel box, have you booted your
> >> kernel
> >> >> with
> >> >> >> >>>>>> intel_iommu=on ?
> >> >> >> >>>>>>> Yes, I have booted my kernel with the intel_iommu=on. (I
> >> don't
> >> >> >> >>> remember
> >> >> >> >>>>>> how to check that now though ^^)
> >> >> >> >>>>>>>
> >> >> >> >>>>>>>> Please paste the output of dmesg | grep -e DMAR -e IOMMU
> ?
> >> >> >> >>>>>>> [root@peryn5 ~]# dmesg | grep -e DMAR -e IOMMU
> >> >> >> >>>>>>> [ 0.000000] ACPI: DMAR 00000000bf79e0c0 00118 (v01
> AMI
> >> >> >> OEMDMAR
> >> >> >> >>>>>> 00000001 MSFT 00000097)
> >> >> >> >>>>>>> [ 0.000000] Intel-IOMMU: enabled
> >> >> >> >>>>>>> [ 0.039149] dmar: IOMMU 0: reg_base_addr fbffe000 ver
> 1:0
> >> cap
> >> >> >> >>>>>> c90780106f0462 ecap f020f6
> >> >> >> >>>>>>> [ 0.550126] IOMMU 0 0xfbffe000: using Queued
> invalidation
> >> >> >> >>>>>>> [ 0.550131] IOMMU: Setting RMRR:
> >> >> >> >>>>>>> [ 0.550149] IOMMU: Setting identity map for device
> >> >> 0000:00:1a.0
> >> >> >> >>>>>> [0xbf7ec000 - 0xbf7fffff]
> >> >> >> >>>>>>> [ 0.550184] IOMMU: Setting identity map for device
> >> >> 0000:00:1a.1
> >> >> >> >>>>>> [0xbf7ec000 - 0xbf7fffff]
> >> >> >> >>>>>>> [ 0.550211] IOMMU: Setting identity map for device
> >> >> 0000:00:1a.2
> >> >> >> >>>>>> [0xbf7ec000 - 0xbf7fffff]
> >> >> >> >>>>>>> [ 0.550241] IOMMU: Setting identity map for device
> >> >> 0000:00:1a.7
> >> >> >> >>>>>> [0xbf7ec000 - 0xbf7fffff]
> >> >> >> >>>>>>> [ 0.550272] IOMMU: Setting identity map for device
> >> >> 0000:00:1d.0
> >> >> >> >>>>>> [0xbf7ec000 - 0xbf7fffff]
> >> >> >> >>>>>>> [ 0.550302] IOMMU: Setting identity map for device
> >> >> 0000:00:1d.1
> >> >> >> >>>>>> [0xbf7ec000 - 0xbf7fffff]
> >> >> >> >>>>>>> [ 0.550329] IOMMU: Setting identity map for device
> >> >> 0000:00:1d.2
> >> >> >> >>>>>> [0xbf7ec000 - 0xbf7fffff]
> >> >> >> >>>>>>> [ 0.550358] IOMMU: Setting identity map for device
> >> >> 0000:00:1d.7
> >> >> >> >>>>>> [0xbf7ec000 - 0xbf7fffff]
> >> >> >> >>>>>>> [ 0.550375] IOMMU: Setting identity map for device
> >> >> 0000:00:1a.0
> >> >> >> >>>>>> [0xec000 - 0xeffff]
> >> >> >> >>>>>>> [ 0.550387] IOMMU: Setting identity map for device
> >> >> 0000:00:1a.1
> >> >> >> >>>>>> [0xec000 - 0xeffff]
> >> >> >> >>>>>>> [ 0.550399] IOMMU: Setting identity map for device
> >> >> 0000:00:1a.2
> >> >> >> >>>>>> [0xec000 - 0xeffff]
> >> >> >> >>>>>>> [ 0.550410] IOMMU: Setting identity map for device
> >> >> 0000:00:1a.7
> >> >> >> >>>>>> [0xec000 - 0xeffff]
> >> >> >> >>>>>>> [ 0.550421] IOMMU: Setting identity map for device
> >> >> 0000:00:1d.0
> >> >> >> >>>>>> [0xec000 - 0xeffff]
> >> >> >> >>>>>>> [ 0.550433] IOMMU: Setting identity map for device
> >> >> 0000:00:1d.1
> >> >> >> >>>>>> [0xec000 - 0xeffff]
> >> >> >> >>>>>>> [ 0.550444] IOMMU: Setting identity map for device
> >> >> 0000:00:1d.2
> >> >> >> >>>>>> [0xec000 - 0xeffff]
> >> >> >> >>>>>>> [ 0.550458] IOMMU: Setting identity map for device
> >> >> 0000:00:1d.7
> >> >> >> >>>>>> [0xec000 - 0xeffff]
> >> >> >> >>>>>>> [ 0.550471] IOMMU: Prepare 0-16MiB unity mapping for
> LPC
> >> >> >> >>>>>>> [ 0.550483] IOMMU: Setting identity map for device
> >> >> 0000:00:1f.0
> >> >> >> >>> [0x0
> >> >> >> >>>>>> - 0xffffff]
> >> >> >> >>>>>>>
> >> >> >> >>>>>>
> >> >> >> >>>>>> Yeah, this looks ok. Actually, taking a second look, I
> can’t
> >> >> think
> >> >> >> of
> >> >> >> >>>>>> anyway how this could be related to file permissions on
> >> >> >> /dev/vfio/vfio.
> >> >> >> >>>>>>
> >> >> >> >>>>>>>> Why does opening /dev/vfio/vfio fail ? Can you please
> >> confirm
> >> >> that
> >> >> >> >>> you
> >> >> >> >>>>>> have read/write permissions as the user you are trying to
> run
> >> ?
> >> >> >> >>>>>>> [root@peryn5 ~]# cd /dev/vfio/
> >> >> >> >>>>>>> [root@peryn5 vfio]# ls -la | grep vfio
> >> >> >> >>>>>>> crw-rw-rw- 1 root root 10, 196 May 18 11:54 vfio
> >> >> >> >>>>>>> The right should be okay I guess.
> >> >> >> >>>>>>>
> >> >> >> >>>>>> Yes, indeed it is. What distro is this ? Do you have
> SELinux
> >> or
> >> >> any
> >> >> >> >>> other
> >> >> >> >>>>>> security feature enabled ? Can you please verify that the
> file
> >> >> has a
> >> >> >> >>>>>> appropriate label if SELinux is enabled ? (ls -lZ
> >> /dev/vfio/vfio)
> >> >> >> >>>>>>
> >> >> >> >>>>>> Bandan
> >> >> >> >>>>>>>
> >> >> >> >>>>>>>
> >> >> >> >>>>>>>
> >> >> >> >>>>>>> 2015-05-19 18:54 GMT-08:00 Bandan Das <b...@makefile.in>:
> >> >> >> >>>>>>>
> >> >> >> >>>>>>> Hello Gabriel,
> >> >> >> >>>>>>>
> >> >> >> >>>>>>>> On May 19, 2015, at 8:03 PM, Gabriel Laupre <
> >> glau...@gmail.com
> >> >> >
> >> >> >> >>> wrote:
> >> >> >> >>>>>>>>
> >> >> >> >>>>>>>> Hello everyone,
> >> >> >> >>>>>>>>
> >> >> >> >>>>>>>> I am using a Centos 7.1 machine with the kernel
> 3.10.229. I
> >> >> want
> >> >> >> to
> >> >> >> >>>>>> use my host with SR-IOV to use a virtual function on my
> NIC as
> >> >> the
> >> >> >> >>> vNIC in
> >> >> >> >>>>>> my new VM.
> >> >> >> >>>>>>>>
> >> >> >> >>>>>>>> I have an instance started with a old NIC using macvtap
> >> that I
> >> >> >> >>> want to
> >> >> >> >>>>>> change. I am using the
> >> >> >> >>>>>>>> virsh edit instance-00000034
> >> >> >> >>>>>>>> command to edit the XML configuration to add the new
> device
> >> I
> >> >> want
> >> >> >> >>> to
> >> >> >> >>>>>> attach.
> >> >> >> >>>>>>> …
> >> >> >> >>>>>>> Assuming you are on an intel box, have you booted your
> kernel
> >> >> with
> >> >> >> >>>>>> intel_iommu=on ?
> >> >> >> >>>>>>> Please paste the output of dmesg | grep -e DMAR -e IOMMU ?
> >> >> >> >>>>>>>
> >> >> >> >>>>>>>> When I try to reboot the VM I get this error:
> >> >> >> >>>>>>>> Error starting domain: internal error: process exited
> while
> >> >> >> >>> connecting
> >> >> >> >>>>>> to monitor: 2015-05-19T21:46:21.935043Z qemu-kvm: -device
> >> >> >> >>>>>> vfio-pci,host=04:10.4,id=hostdev0,bus=pci.0,addr=0x3: vfio:
> >> >> failed
> >> >> >> to
> >> >> >> >>> open
> >> >> >> >>>>>> /dev/vfio/vfio: Operation not permitted
> >> >> >> >>>>>>> Why does opening /dev/vfio/vfio fail ? Can you please
> confirm
> >> >> that
> >> >> >> >>> you
> >> >> >> >>>>>> have read/write permissions as the user you are trying to
> run
> >> ?
> >> >> >> >>>>>>>
> >> >> >> >>>>>>>> 2015-05-19T21:46:21.935091Z qemu-kvm: -device
> >> >> >> >>>>>> vfio-pci,host=04:10.4,id=hostdev0,bus=pci.0,addr=0x3: vfio:
> >> >> failed
> >> >> >> to
> >> >> >> >>> setup
> >> >> >> >>>>>> container for group 24
> >> >> >> >>>>>>>> 2015-05-19T21:46:21.935107Z qemu-kvm: -device
> >> >> >> >>>>>> vfio-pci,host=04:10.4,id=hostdev0,bus=pci.0,addr=0x3: vfio:
> >> >> failed
> >> >> >> to
> >> >> >> >>> get
> >> >> >> >>>>>> group 24
> >> >> >> >>>>>>>> 2015-05-19T21:46:21.935135Z qemu-kvm: -device
> >> >> >> >>>>>> vfio-pci,host=04:10.4,id=hostdev0,bus=pci.0,addr=0x3:
> Device
> >> >> >> >>> initialization
> >> >> >> >>>>>> failed.
> >> >> >> >>>>>>>> 2015-05-19T21:46:21.935157Z qemu-kvm: -device
> >> >> >> >>>>>> vfio-pci,host=04:10.4,id=hostdev0,bus=pci.0,addr=0x3:
> Device
> >> >> >> 'vfio-pci'
> >> >> >> >>>>>> could not be initialized
> >> >> >> >>>>>>>>
> >> >> >> >>>>>>>> total Trace here: http://sprunge.us/XZFB
> >> >> >> >>>>>>>>
> >> >> >> >>>>>>>> Any idea how to fix that?
> >> >> >> >>>>>>>>
> >> >> >> >>>>>>>> Thank you very much :)
> >> >> >> >>>>>>>>
> >> >> >> >>>>>>>> Gabriel
> >> >> >> >>>>>>>>
> >> >> >> >>>>>>>
> >> >> >> >>>>>>>
> >> >> >> >>>>>>
> >> >> >> >>>>>>
> >> >> >> >>>
> >> >> >> >
> >> >> >>
> >> >>
> >>
>
