[SOLVED] PVE7: Failed to mmap xxxx:xx:xx.x BAR 3. Performance may be slow

[bishop f4]

SOLVED:
Changed GRUB to:
GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_iommu=on iommu=pt nofb nomodeset video=vesafb:off video=efifb:off video=simplefb:off"


Original Post here:

Going through the motions of main GPU passthrough, had it working before but after going to PVE7 from 6, I can't seem to get it back and this is a fresh install.
How do I solve:

kvm: -device vfio-pci,host=0000:03:00.0,id=hostpci0.0,bus=ich9-pcie-port-1,addr=0x0.0,multifunction=on,romfile=/usr/share/kvm/evgagtx1070ti.rom: Failed to mmap 0000:03:00.0 BAR 3. Performance may be slow

I tried the ROM file passthrough as I didn't have to before but it doesn't work and whenever I launch my Win10 VM and go to the console it is just a blank screen.
As last time, I followed these guides:
https://www.reddit.com/r/homelab/comments/b5xpua/the_ultimate_beginners_guide_to_gpu_passthrough/
https://www.youtube.com/watch?v=fgx3NMk6F54&t=438s&ab_channel=TechnoTim

cat /etc/default/grub:

GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_iommu=on iommu=pt pcie_acs_override=downstream,multifunction nofb nomodeset video=vesafb:off,efifb:off"

dmesg | grep -e DMAR -e IOMMU

[    0.015082] ACPI: DMAR 0x000000007C040A40 000138 (v01 A M I  OEMDMAR  00000001 INTL 00000001)
[    0.015105] ACPI: Reserving DMAR table memory at [mem 0x7c040a40-0x7c040b77]
[    0.284773] DMAR: IOMMU enabled
[    0.650920] DMAR: Host address width 46
[    0.650922] DMAR: DRHD base: 0x000000fbffe000 flags: 0x0
[    0.650929] DMAR: dmar0: reg_base_addr fbffe000 ver 1:0 cap d2078c106f0466 ecap f020de
[    0.650932] DMAR: DRHD base: 0x000000dfffc000 flags: 0x1
[    0.650936] DMAR: dmar1: reg_base_addr dfffc000 ver 1:0 cap d2078c106f0466 ecap f020de
[    0.650939] DMAR: RMRR base: 0x0000007c663000 end: 0x0000007c671fff
[    0.650941] DMAR: ATSR flags: 0x0
[    0.650943] DMAR: RHSA base: 0x000000fbffe000 proximity domain: 0x1
[    0.650944] DMAR: RHSA base: 0x000000dfffc000 proximity domain: 0x0
[    0.650948] DMAR-IR: IOAPIC id 3 under DRHD base  0xfbffe000 IOMMU 0
[    0.650950] DMAR-IR: IOAPIC id 0 under DRHD base  0xdfffc000 IOMMU 1
[    0.650951] DMAR-IR: IOAPIC id 2 under DRHD base  0xdfffc000 IOMMU 1
[    0.650953] DMAR-IR: HPET id 0 under DRHD base 0xdfffc000
[    0.650955] DMAR-IR: Queued invalidation will be enabled to support x2apic and Intr-remapping.
[    0.651683] DMAR-IR: Enabled IRQ remapping in x2apic mode
[    1.223577] DMAR: No SATC found
[    1.223582] DMAR: dmar0: Using Queued invalidation
[    1.223599] DMAR: dmar1: Using Queued invalidation
[    1.227859] DMAR: Intel(R) Virtualization Technology for Directed I/O

uname -r

5.13.19-6-pve

cat /proc/cmdline

BOOT_IMAGE=/boot/vmlinuz-5.13.19-6-pve root=/dev/mapper/pve-root ro quiet intel_iommu=on iommu=pt nofb nomodeset video=vesafb:off,efifb:off

cat /etc/modules returns:

# /etc/modules: kernel modules to load at boot time.
#
# This file contains the names of kernel modules that should be loaded
# at boot time, one per line. Lines beginning with "#" are ignored.
vfio
vfio_iommu_type1
vfio_pci
vfio_virqfd

 

[leesteken]

I have not looked into you actual problem, but video=vesafb:off,efifb:off is no longer valid. You need to write it as video=vesafb:off video=efifb:off (and with pve-kernel 5.15 you might also need video=simplefb:off).

 

[bishop f4]

I have not looked into you actual problem, but video=vesafb:off,efifb:off is no longer valid. You need to write it as video=vesafb:off video=efifb:off (and with pve-kernel 5.15 you might also need video=simplefb:off).

Oh. apologies, looks like I copy pasted the wrong GRUB line in, will adjust that and see if that works.

EDIT: Works but now dealing with Windows 10 errors in VM