HuC firmware i915/mtl_huc_gsc.bin have status N/A

[Ionut Nechita]

Hello Ubuntu Kernel Team,

I notice this:

HuC firmware is not enabled on this kernel: 6.5.0-41-generic

```
Kernel: 6.5.0-41-generic x86_64
Driver: 20201103
Time: 1719401088 s 931064 us
Boottime: 376 s 964423 us
Uptime: 373 s 613623 us
Capture: 4294986508 jiffies; 28 ms ago
Reset count: 0
Suspend count: 0
Platform: METEORLAKE
Subplatform: 0x2
PCI ID: 0x7dd5
PCI Revision: 0x08
PCI Subsystem: 1849:7d55
IOMMU enabled?: 1
DMC initialized: yes
DMC loaded: yes
DMC fw version: 2.17
RPM wakelock: yes
PM suspended: no
IER: 0x08080008
DERRMR: 0xffffffff
GT awake: no
CS timestamp frequency: 19200000 Hz, 53 ns
EIR: 0x00000000
PGTBL_ER: 0x00000000
GTIER[0]: 0x00010001
GTIER[1]: 0x00010001
GTIER[2]: 0x80000000
GTIER[3]: 0x00000000
GTIER[4]: 0x00000000
GTIER[5]: 0x00000000
FORCEWAKE: 0x00010000
FAULT_TLB_DATA: 0x00000000 0x00000000
AUX_ERR_DBG: 0x00000000
  GAM_DONE: 0xfffffbff
GuC firmware: i915/mtl_guc_70.bin
GuC firmware wanted: i915/mtl_guc_70.bin
        status: RUNNING
        version: found 70.20.0
        uCode: 332032 bytes
        RSA: 384 bytes
HuC firmware: i915/mtl_huc_gsc.bin
HuC firmware wanted: i915/mtl_huc_gsc.bin
        status: N/A
        version: found 0.0.0
        uCode: 0 bytes
        RSA: 0 bytes
GuC timestamp: 0xbda655e1
```

# dpkg -l | grep linux-image
ii linux-image-6.5.0-18-generic 6.5.0-18.18~22.04.1 amd64 Signed kernel image generic
ii linux-image-6.5.0-41-generic 6.5.0-41.41~22.04.2 amd64 Signed kernel image generic
ii linux-image-generic-hwe-22.04 6.5.0.41.41~22.04.2 amd64 Generic Linux kernel image

# sudo dmesg | grep i915
[ 0.000000] Command line: BOOT_IMAGE=/@/boot/vmlinuz-6.5.0-41-generic root=UUID=bc3ae250-64a6-427b-9ebe-73c97182b704 ro rootflags=subvol=@ quiet splash i915.force_probe=7dd5 vt.handoff=7
[ 0.051304] Kernel command line: BOOT_IMAGE=/@/boot/vmlinuz-6.5.0-41-generic root=UUID=bc3ae250-64a6-427b-9ebe-73c97182b704 ro rootflags=subvol=@ quiet splash i915.force_probe=7dd5 vt.handoff=7
[ 3.305745] i915 0000:00:02.0: Force probing unsupported Device ID 7dd5, tainting kernel
[ 3.305949] i915 0000:00:02.0: [drm] GT0: Incompatible option enable_guc=3 - HuC is not supported!
[ 3.306698] i915 0000:00:02.0: [drm] No GSC FW selected, disabling GSC CS and media C6
[ 3.306981] i915 0000:00:02.0: [drm] VT-d active for gfx access
[ 3.307490] i915 0000:00:02.0: vgaarb: deactivate vga console
[ 3.307517] i915 0000:00:02.0: [drm] Using Transparent Hugepages
[ 3.326159] i915 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem
[ 3.335411] i915 0000:00:02.0: [drm] Finished loading DMC firmware i915/mtl_dmc.bin (v2.17)
[ 3.356889] i915 0000:00:02.0: [drm] GT0: GuC firmware i915/mtl_guc_70.bin version 70.20.0
[ 3.370719] i915 0000:00:02.0: [drm] GT0: GUC: submission enabled
[ 3.370726] i915 0000:00:02.0: [drm] GT0: GUC: SLPC enabled
[ 3.370921] i915 0000:00:02.0: [drm] GT0: GUC: RC enabled
[ 3.374689] i915 0000:00:02.0: [drm] GT1: GuC firmware i915/mtl_guc_70.bin version 70.20.0
[ 3.374692] i915 0000:00:02.0: [drm] GT1: HuC firmware i915/mtl_huc_gsc.bin version 8.5.4
[ 3.402156] i915 0000:00:02.0: [drm] GT1: HuC: authenticated for clear media
[ 3.402507] i915 0000:00:02.0: [drm] GT1: GUC: submission enabled
[ 3.402512] i915 0000:00:02.0: [drm] GT1: GUC: SLPC enabled
[ 3.402594] i915 0000:00:02.0: [drm] GT1: GUC: RC enabled
[ 3.439910] [drm] Initialized i915 1.6.0 20201103 for 0000:00:02.0 on minor 0
[ 3.444949] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
[ 3.473062] fbcon: i915drmfb (fb0) is primary device
[ 3.522192] i915 0000:00:02.0: [drm] fb0: i915drmfb frame buffer device
root@amr-asrock-mtl01:/sys/kernel/debug/dri/0#

# sudo dpkg -l | grep firmware
ii amd64-microcode 3.20191218.1ubuntu2.2 amd64 Processor microcode firmware for AMD CPUs
ii firmware-sof-signed 2.0-1ubuntu4.7 all Intel SOF firmware - signed
ii intel-microcode 3.20240514.0ubuntu0.22.04.1 amd64 Processor microcode firmware for Intel CPUs
ii linux-firmware 20220329.git681281e4-0ubuntu3.30 all Firmware for Linux kernel drivers

Kernel: Linux 6.5.0-41-generic #41~22.04.2-Ubuntu SMP PREEMPT_DYNAMIC Mon Jun 3 11:32:55 UTC 2 x86_64 x86_64 x86_64 GNU/Linux
CPU: Intel(R) Core(TM) Ultra 7 155H
DMI: To Be Filled By O.E.M. To Be Filled By O.E.M./NUC-155H, BIOS P1.20 03/06/2024
OS: Ubuntu 22.04.4 LTS

[Juerg Haefliger (juergh)]

I'm not exactly sure what to expect when force-loading that driver. What happens if you don't have 'i915.force_probe=7dd5'?

Also, can you provide logs by running 'apport-collect 2070490'?