[LNL][ARL] intel-lpmd: Unsupported platform

[pma1]

ARL:
6.10-1005-oem kernel on Ubuntu 24.04
intel-lpmd fails to start as following:
[1720579420][DEBUG]lpmd_main begin
[1720579420][DEBUG]CPUID 0x00000000: eax = 0x00000023 ebx = 0x756e6547 ecx = 0x6c65746e edx = 0x49656e69
[1720579420][DEBUG]CPUID 0x00000001: eax = 0x000c0660 ebx = 0x00800800 ecx = 0x7ffafbff edx = 0xbfebfbff
[1720579420][INFO]35 CPUID levels; family:model:stepping 0x6:c6:0 (6:198:0)
[1720579420][INFO]Unsupported platform
[1720579420][INFO]Unsupported CPU type

LNL:
[1720589641][DEBUG]lpmd_main begin
[1720589641][DEBUG]CPUID 0x00000000: eax = 0x00000023 ebx = 0x756e6547 ecx = 0x6c65746e edx = 0x49656e69
[1720589641][DEBUG]CPUID 0x00000001: eax = 0x000b06d0 ebx = 0x08800800 ecx = 0x7ffafbff edx = 0xbfebfbff
[1720589641][INFO]35 CPUID levels; family:model:stepping 0x6:bd:0 (6:189:0)
[1720589641][INFO]Unsupported platform
[1720589641][INFO]Unsupported CPU type

[pma1]

intel-lpmd is built from source code commit:
341a469 (HEAD -> main, origin/main, origin/HEAD) Merge pull request #43 from zhang-rui/main

[zhang-rui]

This is true.
lpmd uses a strict CPU model check to probe on certain platforms.
So far, we have not evaluated the PnP impect on ARL/LNL, thus lpmd is not enabled on these platforms yet.

Keep this issue open, will close it once we finished evaluation and enable these platforms.

[anthonywong]

@zhang-rui May I know if you have a timeline when the evaluation on LNL and ARL will be done? Because we are evaluating and planning whether to preload lpmd on future laptops or not.

[zhang-rui]

Not yet. Let me sync internally and get back to you later.