Kernel: enable CONFIG_INTEL_MEI_GSC_PROXY (missing mei_gsc_proxy, i915 "GSC proxy" error on Meteor Lake/Arrow Lake)

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调研方向

此更改属于 void-packages 中 linux6.18 和 linux7.3 的内核包模板,即设置内核配置的位置。请分别找到每个版本中 CONFIG_INTEL_MEI_GSC_PROXY 当前被取消设置的位置,并检查周边的 MEI 选项。完成标准是:两个配置中该选项都已启用,软件包构建成功,并且在重新构建的内核上 modinfo mei_gsc_proxy 能找到该模块。

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描述

bug needs-testing
Is this a new report?

Yes

System Info

Void 6.18.60_1 x86_64 GenuineIntel notuptodate rrrmFF

Package(s) Affected

linux6.18, linux7.3

Does a report exist for this bug with the project's home (upstream) and/or another distro?

No response

Expected behaviour

The mei_gsc_proxy module should be shipped with the kernel and be loadable (as on Fedora/Debian/Arch kernels), so that i915/xe can initialize the GSC proxy, and the boot-time error i915 ...: can't init GSC proxy due to missing mei component (older kernels: *ERROR* GT1: GSC proxy handler failed to init) no longer appears in dmesg.

Actual behaviour

Void kernels (linux6.18-6.18.60_1, linux7.3-7.3.1_1) are built without
CONFIG_INTEL_MEI_GSC_PROXY:

$ grep MEI_GSC /boot/config-$(uname -r)
# CONFIG_INTEL_MEI_GSC_PROXY is not set
$ modinfo mei_gsc_proxy
modinfo: ERROR: Module mei_gsc_proxy not found.

As a result, on systems with a Meteor Lake / Arrow Lake-H iGPU, i915 logs an
error on every boot:

i915 0000:00:02.0: [drm] GT1: can't init GSC proxy due to missing mei component

(older kernels: "ERROR GT1: GSC proxy handler failed to init")

lsmod | grep mei shows only mei and mei_me; the mei_gsc_proxy component
never binds, so the GSC firmware inside the iGPU cannot communicate with the
CSME. On DG2 this breaks HuC authentication; on MTL/ARL the practical impact
is smaller (HuC still authenticates), but the error is logged on every boot
and ME-dependent GSC features (some PXP/protected-content paths) are
unavailable.

Steps to reproduce
  1. Boot a current Void kernel (tested: linux6.18-6.18.60_1 andlinux7.3-7.3.1_1) on a system with a Meteor Lake / Arrow Lake-H iGPU.
  2. dmesg | grep -i gsc — the proxy error is present on every boot.
  3. modinfo mei_gsc_proxy → ERROR: Module mei_gsc_proxy not found.
  4. grep MEI_GSC /boot/config-$(uname -r) → # CONFIG_INTEL_MEI_GSC_PROXY is not set
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  3. Fork 仓库,在一个分支上完成修改。
  4. 提交 Pull Request,并在描述里引用这个 Issue 编号。

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