intel / intel/linux-npu-driver

ESXi passthrough of NPU to VM - failed with error -110

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Description

Are there additional debug/verbose logs from the NPU Linux driver, I've been able to successfully do PCIe passthrough of the NPU from Intel 14th Gen system, but it looks like it fails to load firmware (-110) but no more details ... trying to understand what could be the cause whether this is on ESXi hypervisor and passthrough or something else ...

Here's snippet from dmesg (this is after installing the required drivers on Ubuntu 24.04)

```console
[ 2.036821] intel_vpu 0000:02:05.0: enabling device (0000 -> 0002)
[ 2.052504] intel_vpu 0000:02:05.0: [drm] Firmware: intel/vpu/vpu_37xx_v0.0.bin, version: 20240726*MTL_CLIENT_SILICON-release*0004*ci_tag_ud202428_vpu_rc_20240726_0004*e4a99ed6b3e
[ 3.078146] intel_vpu 0000:02:05.0: [drm] *ERROR* ivpu_boot(): Failed to boot the firmware: -110
[ 3.078427] intel_vpu 0000:02:05.0: [drm] *ERROR* ivpu_mmu_dump_event(): MMU EVTQ: 0x10 (Translation fault) SSID: 0 SID: 3, e[2] 00000000, e[3] 00000208, in addr: 0x84803000, fetch addr: 0x0
[ 3.078889] intel_vpu 0000:02:05.0: [drm] *ERROR* ivpu_mmu_dump_event(): MMU EVTQ: 0x10 (Translation fault) SSID: 0 SID: 3, e[2] 00000000, e[3] 00000208, in addr: 0x84803010, fetch addr: 0x0
[ 3.093452] intel_vpu 0000:02:05.0: [drm] ivpu_hw_37xx_power_down(): VPU not idle during power down
[ 3.095388] intel_vpu: probe of 0000:02:05.0 failed with error -110
```

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