[SOLVED] IOMMU GRUB config not working.

[xanian]

Hello,

i have problem with passtrough on my HP Proliant DL380 G9

i get this meassage

kvm: -device vfio-pci,host=0000:0b:00.0,id=hostpci0,bus=pci.0,addr=0x10: vfio 0000:0b:00.0: failed to setup container for group 58: Failed to set iommu for container: Operation not permitted
TASK ERROR: start failed: QEMU exited with code 1

only thing i did was enable intel_iommu=on in the grub config and updated the bootloader

in the bios all vt and srv-io its enabled

passtrough is working on VMwareEsxi 8

its there something i am missing ??

i have a DL180 where i got passtrough working but i did not remeber if did something else to get it to work

tell me if there is something you need me to post for more info

 

[VictorSTS]

Post the output of cat /proc/cmdline. It should have intel_iommu=on there.

Do you have secure boot enabled? Do you use zfs as boot device?

 

[xanian]

Hello
cat /proc/cmdline. see attached screenshot

Tried with and without secureboot, no see attached screenshot

 

[cheiss]

Hi,

could you please post the output of pvesh get /nodes/localhost/hardware/pci --pci-class-blacklist "" and dmesg | grep -e DMAR -e IOMMU -e AMD-Vi?

That should give us some more helpful information.

 

[xanian]

her you go

 

[cheiss]

[  161.946697] vfio-pci 0000:0b:00.0: DMAR: Device is ineligible for IOMMU domain attach due to platform RMRR requirement.  Contact your platform vendor.

That says it all. It's a known bug with HP firmware, see e.g. https://github.com/kiler129/relax-intel-rmrr/blob/master/deep-dive.md#what-vendors-did-wrong

A workaround for such buggy firmware is included in the Proxmox VE kernel, which can be activated by adding intel_iommu=relax_rmrr to the kernel commandline (just like the intel_iommu=on)

 

[xanian]

thank you that worked, i read about something but that was for the g8 so that solution will not work on g9.
but this one did