I'm trying to do a pci passthrough from proxmox to my VM.
I keep getting the error when starting my VM.
error writing '1' to '/sys/bus/pci/devices/0000:02:00.0/reset': Inappropriate ioctl for device
failed to reset PCI device '0000:02:00.0', but trying to continue as not all devices need a reset
kvm: ../hw/pci/pci.c:1815: pci_irq_handler: Assertion `0 <= irq_num && irq_num < PCI_NUM_PINS' failed.
TASK ERROR: start failed: QEMU exited with code 1
This is my machine details
agent: 1
bios: ovmf
boot: order=scsi0;ide2;net0
cores: 4
cpu: x86-64-v2-AES
efidisk0: local-lvm:vm-103-disk-0,efitype=4m,ms-cert=2023,pre-enrolled-keys=1,size=4M
hostpci0: 0000:02:00.0,pcie=1,rombar=1
ide2: none,media=cdrom
machine: q35
memory: 4096
meta: creation-qemu=10.1.2,ctime=1776892906
name: axelera
net0: virtio=BC:24:11:A4:8C:9B,bridge=vmbr0,firewall=1
numa: 0
ostype: l26
scsi0: local-lvm:vm-103-disk-1,iothread=1,size=32G
scsihw: virtio-scsi-single
smbios1: uuid=49dcbf39-39e5-4a39-a8ad-cc02f5c886bf
sockets: 1
vmgenid: 91f66581-7a4a-46b0-a301-96133f8cea9a
I have blacklisted the device on the host machine but that doesn't make a difference.
There is also a strange issue on my Host, where i need to do a pci rescan after each host reboot
echo 1 | tee /sys/bus/pci/rescanAfter the rescan i can see the device.
02:00.0 Processing accelerators [1200]: Axelera AI Metis AIPU (rev 02) [1f9d:1100]
Subsystem: Axelera AI Metis AIPU (rev 02) [1f9d:1100]
Kernel driver in use: vfio-pci
IOMMU is enabled.
root@server1:~# dmesg | grep -iE "iommu"
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-6.17.2-1-pve root=/dev/mapper/pve-root ro quiet intel_iommu=on iommu=pt
[ 0.026768] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-6.17.2-1-pve root=/dev/mapper/pve-root ro quiet intel_iommu=on iommu=pt
[ 0.026802] DMAR: IOMMU enabled
[ 0.071802] DMAR-IR: IOAPIC id 2 under DRHD base 0xfed91000 IOMMU 1
[ 0.299486] pci 0000:00:02.0: DMAR: Skip IOMMU disabling for graphics
[ 0.811834] iommu: Default domain type: Passthrough (set via kernel command line)
[ 0.867244] pci 0000:00:02.0: Adding to iommu group 0
[ 0.867274] pci 0000:00:00.0: Adding to iommu group 1
[ 0.867284] pci 0000:00:01.0: Adding to iommu group 2
[ 0.867291] pci 0000:00:04.0: Adding to iommu group 3
[ 0.867299] pci 0000:00:08.0: Adding to iommu group 4
[ 0.867310] pci 0000:00:14.0: Adding to iommu group 5
[ 0.867317] pci 0000:00:14.2: Adding to iommu group 5
[ 0.867327] pci 0000:00:16.0: Adding to iommu group 6
[ 0.867334] pci 0000:00:16.3: Adding to iommu group 6
[ 0.867341] pci 0000:00:17.0: Adding to iommu group 7
[ 0.867395] pci 0000:00:1a.0: Adding to iommu group 8
[ 0.867419] pci 0000:00:1f.0: Adding to iommu group 9
[ 0.867428] pci 0000:00:1f.3: Adding to iommu group 9
[ 0.867435] pci 0000:00:1f.4: Adding to iommu group 9
[ 0.867443] pci 0000:00:1f.5: Adding to iommu group 9
[ 0.867455] pci 0000:00:1f.6: Adding to iommu group 9
[ 0.867464] pci 0000:01:00.0: Adding to iommu group 10
[ 58.060969] pci 0000:02:00.0: Adding to iommu group 11Please help
Thanks