this post was submitted on 15 Mar 2024
8 points (83.3% liked)

Selfhosted

40344 readers
930 users here now

A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

Rules:

  1. Be civil: we're here to support and learn from one another. Insults won't be tolerated. Flame wars are frowned upon.

  2. No spam posting.

  3. Posts have to be centered around self-hosting. There are other communities for discussing hardware or home computing. If it's not obvious why your post topic revolves around selfhosting, please include details to make it clear.

  4. Don't duplicate the full text of your blog or github here. Just post the link for folks to click.

  5. Submission headline should match the article title (don’t cherry-pick information from the title to fit your agenda).

  6. No trolling.

Resources:

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

founded 1 year ago
MODERATORS
ruud
Loki
CannaVet
devve
HybridSarcasm
[email protected]
8
I7-14700 and Asrock z690 extreme - can't figure out PCIE passthrogh (self.selfhosted)
submitted 8 months ago by nemanin to c/selfhosted
25 comments fedilink hide all child comments
 

I can’t even figure out how to tell if it’s supported or not. If it is supported, I can’t figure out how to enable it. If it is enabled, idk where I should be seeing it in proxmox!

Can anyone point me in the right direction?

you are viewing a single comment's thread
view the rest of the comments
[–] nemanin 1 points 6 months ago (1 children)

This may also help, my HBA is there:

root@prox:~# for d in /sys/kernel/iommu_groups//devices/; do n=${d#/iommu_groups/}; n=${n%%/}; printf 'IOMMU group %s ' "$n"; lspci -nns "${d##/}"; done IOMMU group 0 00:02.0 VGA compatible controller [0300]: Intel Corporation Raptor Lake-S GT1 [UHD Graphics 770] [8086:a780] (rev 04)

IOMMU group 10 00:1f.0 ISA bridge [0601]: Intel Corporation Z690 Chipset LPC/eSPI Controller [8086:7a84] (rev 11)

IOMMU group 10 00:1f.3 Audio device [0403]: Intel Corporation Alder Lake-S HD Audio Controller [8086:7ad0] (rev 11)

IOMMU group 10 00:1f.4 SMBus [0c05]: Intel Corporation Alder Lake-S PCH SMBus Controller [8086:7aa3] (rev 11)

IOMMU group 10 00:1f.5 Serial bus controller [0c80]: Intel Corporation Alder Lake-S PCH SPI Controller [8086:7aa4] (rev 11)

IOMMU group 10 00:1f.6 Ethernet controller [0200]: Intel Corporation Ethernet Connection (17) I219-V [8086:1a1d] (rev 11)

IOMMU group 11 01:00.0 Non-Volatile memory controller [0108]: Sandisk Corp Western Digital WD Black SN850X NVMe SSD [15b7:5030] (rev 01)

IOMMU group 12 02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8125 2.5GbE Controller [10ec:8125] (rev 05)

IOMMU group 13 03:00.0 Non-Volatile memory controller [0108]: Micron/Crucial Technology Device [c0a9:5415] (rev 01)

IOMMU group 14 04:00.0 PCI bridge [0604]: PLX Technology, Inc. PEX 8724 24-Lane, 6-Port PCI Express Gen 3 (8 GT/s) Switch, 19 x 19mm FCBGA [10b5:8724] (rev ca)

IOMMU group 15 05:00.0 PCI bridge [0604]: PLX Technology, Inc. PEX 8724 24-Lane, 6-Port PCI Express Gen 3 (8 GT/s) Switch, 19 x 19mm FCBGA [10b5:8724] (rev ca)

IOMMU group 16 05:08.0 PCI bridge [0604]: PLX Technology, Inc. PEX 8724 24-Lane, 6-Port PCI Express Gen 3 (8 GT/s) Switch, 19 x 19mm FCBGA [10b5:8724] (rev ca)

IOMMU group 17 05:09.0 PCI bridge [0604]: PLX Technology, Inc. PEX 8724 24-Lane, 6-Port PCI Express Gen 3 (8 GT/s) Switch, 19 x 19mm FCBGA [10b5:8724] (rev ca)

**IOMMU group 18 06:00.0 Serial Attached SCSI controller [0107]: Broadcom / LSI SAS3008 PCI-Express Fusion-MPT SAS-3 [1000:0097] (rev 02)

IOMMU group 19 08:00.0 Serial Attached SCSI controller [0107]: Broadcom / LSI SAS3008 PCI-Express Fusion-MPT SAS-3 [1000:0097] (rev 02)**

IOMMU group 1 00:00.0 Host bridge [0600]: Intel Corporation Device [8086:a740] (rev 01)

IOMMU group 2 00:14.0 USB controller [0c03]: Intel Corporation Alder Lake-S PCH USB 3.2 Gen 2x2 XHCI Controller [8086:7ae0] (rev 11)

IOMMU group 2 00:14.2 RAM memory [0500]: Intel Corporation Alder Lake-S PCH Shared SRAM [8086:7aa7] (rev 11)

IOMMU group 3 00:15.0 Serial bus controller [0c80]: Intel Corporation Alder Lake-S PCH Serial IO I2C Controller #0 [8086:7acc] (rev 11)

IOMMU group 4 00:16.0 Communication controller [0780]: Intel Corporation Alder Lake-S PCH HECI Controller #1 [8086:7ae8] (rev 11)

IOMMU group 5 00:17.0 SATA controller [0106]: Intel Corporation Alder Lake-S PCH SATA Controller [AHCI Mode] [8086:7ae2] (rev 11)

IOMMU group 6 00:1a.0 PCI bridge [0604]: Intel Corporation Alder Lake-S PCH PCI Express Root Port #25 [8086:7ac8] (rev 11)

IOMMU group 7 00:1c.0 PCI bridge [0604]: Intel Corporation Alder Lake-S PCH PCI Express Root Port #2 [8086:7ab9] (rev 11)

IOMMU group 8 00:1c.4 PCI bridge [0604]: Intel Corporation Alder Lake-S PCH PCI Express Root Port #5 [8086:7abc] (rev 11)

IOMMU group 9 00:1d.0 PCI bridge [0604]: Intel Corporation Alder Lake-S PCH PCI Express Root Port #9 [8086:7ab0] (rev 11)

[–] [email protected] 2 points 6 months ago* (last edited 6 months ago)

You should be good to go. Make sure vfio is loaded in the modules-load.d

vfio
vfio_iommu_type1
vfio_pci
vfio_virqfd

Make sure the module options are set correctly and the kernel module is blacklisted in /etc/modprobe.d/vfio.conf

options vfio-pci ids=1000:0097
blacklist MODULE_NAME

Make sure.IOMMU is enabled in your kernel command line (ex via grub): intel_iommu=on iommu=pt

This is probably not complete, but it should get you pretty far into allowing you to add the pci device in the hardware config of your vm