Linux Kernel 7

[lutfijw]

All,
Proxmox now introducing linux kernel 7 in their test repository and will soon be available on all repositories.
Anyone had any chance to test how sriov support in this new kernel?

https://forum.proxmox.com/threads/opt-in-linux-7-0-kernel-for-proxmox-ve-9-available-on-test.182328/

[Preclowski]

It doesnt

$ uname -a
Linux morpheus 7.0.0-1-rc7-pve #1 SMP PREEMPT_DYNAMIC PMX 7.0.0-1~rc7+1 (2026-04-08T20:14Z) x86_64 GNU/Linux

[    4.241268] i915 0000:00:02.0: driver does not support SR-IOV configuration via sysfs

Tested on Intel 245K (MTL)

Also, Intel decided to officially state sr-iov is unsupported on meteor lake (works on 6.19 with strongtz dkms)

https://www.intel.com/content/www/us/en/support/articles/000093216/graphics/processor-graphics.html

[johntdavis84]

It doesnt

$ uname -a
Linux morpheus 7.0.0-1-rc7-pve #1 SMP PREEMPT_DYNAMIC PMX 7.0.0-1~rc7+1 (2026-04-08T20:14Z) x86_64 GNU/Linux

[    4.241268] i915 0000:00:02.0: driver does not support SR-IOV configuration via sysfs

Tested on Intel 245K (MTL)

Thanks! Now I'm curious if it's completely unsupported (for now), or if we're going to need to use a different toolchain from sysfs to configure it.

[Preclowski]

lspci looks promising

00:02.0 VGA compatible controller: Intel Corporation Arrow Lake-S [Intel Graphics] (rev 06) (prog-if 00 [VGA controller])
[...]
	Capabilities: [320 v1] Single Root I/O Virtualization (SR-IOV)
		IOVCap:	Migration- 10BitTagReq+ IntMsgNum 0
		IOVCtl:	Enable- Migration- Interrupt- MSE- ARIHierarchy- 10BitTagReq-
		IOVSta:	Migration-
		Initial VFs: 7, Total VFs: 7, Number of VFs: 0, Function Dependency Link: 00
		VF offset: 1, stride: 1, Device ID: 7d67
		Supported Page Size: 00000553, System Page Size: 00000001
		Region 0: Memory at 000000b010000000 (64-bit, prefetchable)
		VF Migration: offset: 00000000, BIR: 0

[lutfijw]

lspci looks promising

00:02.0 VGA compatible controller: Intel Corporation Arrow Lake-S [Intel Graphics] (rev 06) (prog-if 00 [VGA controller])
[...]
	Capabilities: [320 v1] Single Root I/O Virtualization (SR-IOV)
		IOVCap:	Migration- 10BitTagReq+ IntMsgNum 0
		IOVCtl:	Enable- Migration- Interrupt- MSE- ARIHierarchy- 10BitTagReq-
		IOVSta:	Migration-
		Initial VFs: 7, Total VFs: 7, Number of VFs: 0, Function Dependency Link: 00
		VF offset: 1, stride: 1, Device ID: 7d67
		Supported Page Size: 00000553, System Page Size: 00000001
		Region 0: Memory at 000000b010000000 (64-bit, prefetchable)
		VF Migration: offset: 00000000, BIR: 0

Thanks, any chance to test using stock driver (non strongtz dkms)?

[Preclowski]

@lutfijw my whole comment was about upstream i915 from 7.0

[lutfijw]

@Preclowski Thanks!! Seem need to wait before upgrading to 7.0.

I have similar machine like your and I need to have VF enabled as I have several VMs that need GPU acceleration.

[MacGH23]

I also tried proxmox Kernel 7 on Arrow Lake platform 255H.
Tried both i915 and xe kernel module, both doesn't work.
Or do I need additional driver / software ?

Details

00:02.0 VGA compatible controller: Intel Corporation Arrow Lake-P [Intel Graphics] (rev 03) (prog-if 00 [VGA controller])
DeviceName: Onboard - Video
Subsystem: ASUSTeK Computer Inc. Device 88fe
Flags: bus master, fast devsel, latency 0, IRQ 199, IOMMU group 0
Memory at 5017000000 (64-bit, prefetchable) [size=16M]
Memory at 4000000000 (64-bit, prefetchable) [size=256M]
Expansion ROM at 000c0000 [virtual] [disabled] [size=128K]
Capabilities: [40] Vendor Specific Information: Len=0c <?>
Capabilities: [70] Express Root Complex Integrated Endpoint, IntMsgNum 0
Capabilities: [ac] MSI: Enable+ Count=1/1 Maskable+ 64bit+
Capabilities: [d0] Power Management version 3
Capabilities: [100] Null
Capabilities: [110] Process Address Space ID (PASID)
Capabilities: [200] Address Translation Service (ATS)
Capabilities: [420] Physical Resizable BAR
Capabilities: [320] Single Root I/O Virtualization (SR-IOV)
Capabilities: [400] Latency Tolerance Reporting
Kernel driver in use: xe
Kernel modules: i915, xe

[feerlessleadr]

Anyone try on Alder Lake? Seems that it should be supported according to the below:

https://www.intel.com/content/www/us/en/support/articles/000093216/graphics/processor-graphics.html

[leomoty]

Anyone try on Alder Lake? Seems that it should be supported according to the below:

https://www.intel.com/content/www/us/en/support/articles/000093216/graphics/processor-graphics.html

That is what I am interested on also

[MacGH23]

Tested with 1340P Raptor Lake
is working with xe, but not with i915, in lspci, didn't (!) test a VM with it
GRUB_CMDLINE_LINUX_DEFAULT="intel_iommu=on xe.max_vfs=7 xe.force_probe=0xa7a0 module_blacklist=i915"
and
echo 7 > /sys/devices/pci0000:00/0000:00:02.0/sriov_numvfs
without any additional driver installations

Details

00:00.0 Host bridge: Intel Corporation Raptor Lake-P/U 4p+8e cores Host Bridge/DRAM Controller
00:02.0 VGA compatible controller: Intel Corporation Raptor Lake-P [Iris Xe Graphics] (rev 04)
00:02.1 VGA compatible controller: Intel Corporation Raptor Lake-P [Iris Xe Graphics] (rev 04)
00:02.2 VGA compatible controller: Intel Corporation Raptor Lake-P [Iris Xe Graphics] (rev 04)
00:02.3 VGA compatible controller: Intel Corporation Raptor Lake-P [Iris Xe Graphics] (rev 04)
00:02.4 VGA compatible controller: Intel Corporation Raptor Lake-P [Iris Xe Graphics] (rev 04)
00:02.5 VGA compatible controller: Intel Corporation Raptor Lake-P [Iris Xe Graphics] (rev 04)
00:02.6 VGA compatible controller: Intel Corporation Raptor Lake-P [Iris Xe Graphics] (rev 04)
00:02.7 VGA compatible controller: Intel Corporation Raptor Lake-P [Iris Xe Graphics] (rev 04)
00:06.0 PCI bridge: Intel Corporation Raptor Lake PCIe 4.0 Graphics Port

[MacGH23]

Tested with N100 Alder Lake
is working with xe, but not with i915, in lspci, didn't (!) test a VM with it
GRUB_CMDLINE_LINUX_DEFAULT="intel_iommu=on xe.max_vfs=7 xe.force_probe=0x46d1 module_blacklist=i915"
and
echo 7 > /sys/devices/pci0000:00/0000:00:02.0/sriov_numvfs
without any additional driver installations

Details

00:00.0 Host bridge: Intel Corporation Alder Lake-N Processor Host Bridge/DRAM Registers
00:02.0 VGA compatible controller: Intel Corporation Alder Lake-N [UHD Graphics]
00:02.1 VGA compatible controller: Intel Corporation Alder Lake-N [UHD Graphics]
00:02.2 VGA compatible controller: Intel Corporation Alder Lake-N [UHD Graphics]
00:02.3 VGA compatible controller: Intel Corporation Alder Lake-N [UHD Graphics]
00:02.4 VGA compatible controller: Intel Corporation Alder Lake-N [UHD Graphics]
00:02.5 VGA compatible controller: Intel Corporation Alder Lake-N [UHD Graphics]
00:02.6 VGA compatible controller: Intel Corporation Alder Lake-N [UHD Graphics]
00:02.7 VGA compatible controller: Intel Corporation Alder Lake-N [UHD Graphics]

[lutfijw]

Thank, anyone tested on Arrowlake platform?