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#1 2020-02-26 03:53:26

rwxr-xr-xis
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Registered: 2020-02-26
Posts: 3

[Solved] Unable to get Intel GVT-g to work on Acer Aspire E5-574

Laptop specs:
Acer Aspire E5-574
i3-6100U / Intel HD 520
8GB of ram
Insyde UEFI BIOS v1.18
Tested kernels: 5.5.5.arch-1, 5.5.6-18-tkg-bmq, 5.4.21-1 LTS, 4.19.102 LTS, and self compiled 5.5.6.

No matter what I do it seems like the GVT firmware always fails to load on my laptop.

➜  ~ dmesg | grep i915                        
[0.709301] i915 0000:00:02.0: vgaarb: deactivate vga console
[0.710055] i915 0000:00:02.0: Direct firmware load for i915/gvt/vid_0x8086_did_0x1916_rid_0x07.golden_hw_state failed with error -2
[0.732166] i915 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem
[0.733503] [drm] Finished loading DMC firmware i915/skl_dmc_ver1_27.bin (v1.27)
[0.755662] [drm] Initialized i915 1.6.0 20191101 for 0000:00:02.0 on minor 0
[0.768226] fbcon: i915drmfb (fb0) is primary device
[0.790556] i915 0000:00:02.0: fb0: i915drmfb frame buffer device
[3.086957] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])

The error :

[0.710055] i915 0000:00:02.0: Direct firmware load for i915/gvt/vid_0x8086_did_0x1916_rid_0x07.golden_hw_state failed with error -2

I'm currently passing i915.enable_gvt=1 as a kernel parameter trough GRUB, passing it with a modprobe.d file results in the same error.

➜  ~ cat /etc/modprobe.d/i915.conf
options i915 enable_gvt=1
kvmgt vfio-iommu-type1 vfio-mdev
➜  ~ cat /etc/mkinitcpio.conf
MODULES=(kvmgt vfio-iommu-type1 vfio-mdev i915)

On my self compiled kernel I've also added the following to my .config

CONFIG_VFIO_MDEV_DEVICE=y
CONFIG_VFIO_MDEV=y
CONFIG_DRM_I915_GVT=y
CONFIG_DRM_I915_GVT_KVMGT=y
CONFIG_DRM_I915_GVT_XENGT=y

My cmdline:

➜  ~ cat /proc/cmdline 
BOOT_IMAGE=/@root/boot/vmlinuz-linux-tkg-bmq-skylake root=UUID=2bda37a2-e146-46fa-a03a-f03126420f12 rw rootflags=subvol=@root resume=UUID=b86d43cc-d896-fa47-97ec-7c144e4a91f0 loglevel=3 nowatchdogd i915.modset=1 i915.enable_gvt=1 intel_pstate=passive

Last edited by rwxr-xr-xis (2020-02-26 05:50:47)

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#2 2020-02-26 04:48:45

CarbonChauvinist
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Registered: 2012-06-16
Posts: 413
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Re: [Solved] Unable to get Intel GVT-g to work on Acer Aspire E5-574

That error doesn't actually preclude GVT-g from working. Do you have access to, for e.g., /sys/devices/pci0000\:00/0000\:00\:02.0/mdev_supported_types/*. If so GVTg is up and running TMK.

$ tree /sys/devices/pci0000:00/0000:00:02.0/mdev_supported_types/
├── i915-GVTg_V5_4
│   ├── available_instances
│   ├── create
│   ├── description
│   ├── device_api
│   └── devices
│       └── 247e4dd2-fa4a-41a7-b31f-e8a502710967 -> ../../../247e4dd2-fa4a-41a7-b31f-e8a502710967
└── i915-GVTg_V5_8
    ├── available_instances
    ├── create
    ├── description
    ├── device_api
    └── devices

5 directories, 8 files

$ journalctl -b -k | grep -i 'error -2'
Feb 25 22:41:52 archlinux kernel: i915 0000:00:02.0: Direct firmware load for i915/gvt/vid_0x8086_did_0x191b_rid_0x06.golden_hw_state failed with error -2

Last edited by CarbonChauvinist (2020-02-26 05:36:11)

"the wind-blown way, wanna win? don't play"

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#3 2020-02-26 04:58:56

rwxr-xr-xis
Member
Registered: 2020-02-26
Posts: 3

Re: [Solved] Unable to get Intel GVT-g to work on Acer Aspire E5-574

CarbonChauvinist wrote:

That error doesn't actually preclude GVT-g from working. Do you have access to, for e.g., /sys/devices/pci0000\:00/0000\:00\:02.0/mdev_supported_types/*. If so GVTg is up and running TMK.

Nope.

➜  ~ ls /sys/devices/                           
breakpoint   cstate_pkg  isa          msr         pnp0      system      uncore_cbox_0  uprobe
cpu          i915        kprobe       pci0000:00  power     tracepoint  uncore_cbox_1  virtual
cstate_core  intel_pt    LNXSYSTM:00  platform    software  uncore_arb  uncore_imc     wakeup0
➜  ~ ls /sys/devices/pci0000:00/0000:00:02.0 
ari_enabled               d3cold_allowed   enable         link            numa_node     resource4
boot_vga                  device           firmware_node  local_cpulist   power         revision
broken_parity_status      dev_rescan       graphics       local_cpus      remove        rom
class                     devspec          gvt_firmware   max_link_speed  reset         subsystem
config                    dma_mask_bits    i2c-0          max_link_width  resource      subsystem_device
consistent_dma_mask_bits  driver           i2c-1          modalias        resource0     subsystem_vendor
current_link_speed        driver_override  i2c-2          msi_bus         resource2     uevent
current_link_width        drm              irq            msi_irqs        resource2_wc  vendor
➜  ~ sudo ls /sys/devices/* | grep mdev

Last edited by rwxr-xr-xis (2020-02-26 05:08:51)

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#4 2020-02-26 05:08:26

CarbonChauvinist
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Registered: 2012-06-16
Posts: 413
Website

Re: [Solved] Unable to get Intel GVT-g to work on Acer Aspire E5-574

Hmm. I'm not sure. I'm passing the following:

$ cat /proc/cmdline
initrd=\intel-ucode.img initrd=\initramfs-linux.img root=UUID=4d59661c-0a7e-41ce-8d7b-6cdb367f6e91 rw sysrq_always_enabled=1 quiet kvm.ignore_msrs=1 intel_iommu=on iommu=pt

Is the

i915.modset=1

in your commandline a mistype or an actual typo? Do you have to pass the modeset? What happens if you don't do early KMS (i.e. take it out of your initramfs modules)?

$ grep ^MODULES /etc/mkinitcpio.conf 
MODULES=(kvmgt vfio vfio-iommu-type1 vfio-mdev

Do you have VT-d enabled in your system's firmware?

journalctl -b -k | grep i915
Feb 25 22:41:52 archlinux kernel: i915 0000:00:02.0: VT-d active for gfx access
Feb 25 22:41:52 archlinux kernel: i915 0000:00:02.0: vgaarb: deactivate vga console
Feb 25 22:41:52 archlinux kernel: i915 0000:00:02.0: Direct firmware load for i915/gvt/vid_0x8086_did_0x191b_rid_0x06.golden_hw_state failed with error -2
Feb 25 22:41:52 archlinux kernel: i915 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem
Feb 25 22:41:52 archlinux kernel: [drm] Finished loading DMC firmware i915/skl_dmc_ver1_27.bin (v1.27)
Feb 25 22:41:52 archlinux kernel: [drm] Initialized i915 1.6.0 20191101 for 0000:00:02.0 on minor 0
Feb 25 22:41:52 archlinux kernel: fbcon: i915drmfb (fb0) is primary device
Feb 25 22:41:52 archlinux kernel: i915 0000:00:02.0: fb0: i915drmfb frame buffer device
Feb 25 22:41:52 archlinux kernel: i915 0000:00:02.0: MDEV: Registered
Feb 25 22:41:53 lap kernel: snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])

Last edited by CarbonChauvinist (2020-02-26 05:28:00)

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#5 2020-02-26 05:24:43

rwxr-xr-xis
Member
Registered: 2020-02-26
Posts: 3

Re: [Solved] Unable to get Intel GVT-g to work on Acer Aspire E5-574

CarbonChauvinist wrote:

Hmm. I'm not sure. I'm passing the following:

$ cat /proc/cmdline
initrd=\intel-ucode.img initrd=\initramfs-linux.img root=UUID=4d59661c-0a7e-41ce-8d7b-6cdb367f6e91 rw sysrq_always_enabled=1 quiet kvm.ignore_msrs=1 intel_iommu=on iommu=pt

Is the

i915.modset=1

in your commandline a mistype or an actual typo? Do you have to pass the modeset? What happens if you don't do early KMS (i.e. take it out of your initramfs modules)?

$ grep ^MODULES /etc/mkinitcpio.conf 
MODULES=(kvmgt vfio vfio-iommu-type1 vfio-mdev

i915.modset=1 was a typo from me copying the post :c, I put it there trying to get VT-d to work, anyway, with no modules on mkinitcpio.conf and passing kvm.ignore_msrs=1 intel_iommu=on iommu=pt i915.enable_gvt=1, VT-d/g seems to be working! (Although haven't tested in a vm yet).

Thanks a bunch for helping me out! 

  ~ dmesg | grep i915                                                                        
[    0.000000] Command line: BOOT_IMAGE=/@root/boot/vmlinuz-linux root=UUID=2bda37a2-e146-46fa-a03a-f03126420f12 rw rootflags=subvol=@root resume=UUID=b86d43cc-d896-fa47-97ec-7c144e4a91f0 loglevel=3 nowatchdogd kvm.ignore_msrs=1 intel_iommu=on iommu=pt i915.fastboot=1 i915.enable_guc=0 i915.enable_gvt=1 i915.enable_fbc=1 i915.enable_psr=1 i915.enable_dc=4
[    0.161986] Kernel command line: BOOT_IMAGE=/@root/boot/vmlinuz-linux root=UUID=2bda37a2-e146-46fa-a03a-f03126420f12 rw rootflags=subvol=@root resume=UUID=b86d43cc-d896-fa47-97ec-7c144e4a91f0 loglevel=3 nowatchdogd kvm.ignore_msrs=1 intel_iommu=on iommu=pt i915.fastboot=1 i915.enable_guc=0 i915.enable_gvt=1 i915.enable_fbc=1 i915.enable_psr=1 i915.enable_dc=4
[    0.967787] i915 0000:00:02.0: VT-d active for gfx access
[    0.967901] i915 0000:00:02.0: vgaarb: deactivate vga console
[    0.968730] i915 0000:00:02.0: Direct firmware load for i915/gvt/vid_0x8086_did_0x1916_rid_0x07.golden_hw_state failed with error -2
[    0.999476] i915 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem
[    0.999853] [drm] Finished loading DMC firmware i915/skl_dmc_ver1_27.bin (v1.27)
[    1.010721] [drm] Initialized i915 1.6.0 20191101 for 0000:00:02.0 on minor 0
[    1.026158] fbcon: i915drmfb (fb0) is primary device
[    1.060988] i915 0000:00:02.0: fb0: i915drmfb frame buffer device
[    1.087278] i915 0000:00:02.0: MDEV: Registered
[    4.701995] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
➜  ~ ls /sys/devices/pci0000:00/0000:00:02.0/mdev_supported_types/ 
i915-GVTg_V5_4  i915-GVTg_V5_8

Last edited by rwxr-xr-xis (2020-02-26 05:49:17)

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#6 2020-02-26 05:32:22

CarbonChauvinist
Member
Registered: 2012-06-16
Posts: 413
Website

Re: [Solved] Unable to get Intel GVT-g to work on Acer Aspire E5-574

Nice, please edit your first post's title and prepend with [SOLVED] (if you feel it is in fact resolved).

Last edited by CarbonChauvinist (2020-02-26 05:33:27)

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