Okay - I'll try it with pci-stub grabbing both at boot, then I'll unbind both cards from the kernel in initramfs, then I'll assign one to vfio-pci and the other to nvidia. From there, systemd will take over and try to boot x (I think) and if this script works, I will have overcome this hurdle. Hit me back if you think I'm not understanding something.
On Tue, Feb 23, 2016 at 1:38 PM Ben J <btpprogr...@gmail.com> wrote: > Did vfio-pci bind? I would bind the vfio before nvidia in your script. You > can try to unbind from nvidia but I know it generally doesn't work well. So > for #2 I wouldn't expect that to work. I'm pretty bad with the boot process > so I'll leave that for someone else. > On Feb 23, 2016 1:33 PM, "Garland Key" <david.garland....@gmail.com> > wrote: > >> @Alex & @Ben J >> >> I tried binding both cards to pci-stub in boot options and then running >> the following script in initramfs: >> >> echo 0000:01:00.0 > /sys/bus/pci/drivers/pci-stub/unbind >> echo 0000:01:00.1 > /sys/bus/pci/drivers/pci-stub/unbind >> echo 0000:02:00.0 > /sys/bus/pci/drivers/pci-stub/unbind >> echo 0000:02:00.1 > /sys/bus/pci/drivers/pci-stub/unbind >> echo 0000:01:00.0 > /sys/bus/pci/drivers/nvidia/bind >> echo 0000:01:00.1 > /sys/bus/pci/drivers/nvidia/bind >> echo 0000:02:00.0 > /sys/bus/pci/drivers/vfio-pci/bind >> echo 0000:02:00.1 > /sys/bus/pci/drivers/vfio-pci/bind >> >> This didn't work (nvidia driver doesn't attach to either card) but I >> think I'm understanding more and will find a solution with the more >> understanding I gain (call me Captain Obvious). >> >> I have a two questions that should help me understand what to do. >> >> 1. After initramfs runs, systemd takes over. At what point in this >> process does the nvidia driver actually try to load and when does X try to >> start? >> >> 2. Should I just not use pci-stub and instead just run a script in >> initramfs that unbinds both cards and then binds each one to the driver >> that I want? >> >> On Sun, Feb 21, 2016 at 12:58 PM Garland Key <david.garland....@gmail.com> >> wrote: >> >>> I checked dmesg and there wasn't anything that stood out. There was a >>> DRM error message for nvidia but it wasn't critical. I'll look into this >>> more tomorrow. I have to go to sleep (I work at night). Thanks, Alex. >>> I'll let you know if and when the advice you and Ben have shared works. >>> >>> On Sun, Feb 21, 2016 at 12:40 PM Alex Williamson < >>> alex.william...@redhat.com> wrote: >>> >>>> On Sun, Feb 21, 2016 at 10:01 AM, Garland Key < >>>> david.garland....@gmail.com> wrote: >>>> >>>>> It seems xorg crashed because the nvidia kernel module failed. Here's >>>>> the xorg log file: >>>>> >>>> >>>> Did the intended device get bound to the nvidia module? Are there >>>> dmesg errors? You could try creating a file like: >>>> >>>> /etc/X11/xorg.conf.d/10-nvidia.conf: >>>> Section "Device" >>>> Identifier "Device0" >>>> Driver "nvidia" >>>> VendorName "NVIDIA Corporation" >>>> BusID "PCI:1:0:0" >>>> # Or PCI:2:0:0, depending on which is intended for the host >>>> EndSection >>>> >>>> Maybe Xorg is complaining because it's trying to use both cards when >>>> you only intend for it to use one. >>>> >>> >> _______________________________________________ >> vfio-users mailing list >> vfio-users@redhat.com >> https://www.redhat.com/mailman/listinfo/vfio-users >> >>
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