tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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platform/x86: think-lmi: Add WMI certificate thumbprint support for ThinkCenter

The ThinkCenter team are adding WMI certificate thumbprint support.

Updating the driver to enable it. They are using the same GUID as
Thinkpad/ThinkStation.
Tested on M75q Gen 5.

Signed-off-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Link: https://patch.msgid.link/20251127202959.399040-1-mpearson-lenovo@squebb.ca
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

authored by

Mark Pearson and committed by
Ilpo Järvinen 05126063 a5b9fdd3

+5 -1
+5 -1
drivers/platform/x86/lenovo/think-lmi.c
··· 195 195 }; 196 196 197 197 static const struct tlmi_cert_guids thinkcenter_cert_guid = { 198 - .thumbprint = NULL, 198 + .thumbprint = LENOVO_CERT_THUMBPRINT_GUID, /* Same GUID as TP */ 199 199 .set_bios_setting = LENOVO_TC_SET_BIOS_SETTING_CERT_GUID, 200 200 .save_bios_setting = LENOVO_TC_SAVE_BIOS_SETTING_CERT_GUID, 201 201 .cert_to_password = LENOVO_TC_CERT_TO_PASSWORD_GUID, ··· 707 707 acpi_status status; 708 708 709 709 if (!tlmi_priv.cert_guid->thumbprint) 710 + return -EOPNOTSUPP; 711 + 712 + /* Older ThinkCenter BIOS may not have support */ 713 + if (!wmi_has_guid(tlmi_priv.cert_guid->thumbprint)) 710 714 return -EOPNOTSUPP; 711 715 712 716 status = wmi_evaluate_method(tlmi_priv.cert_guid->thumbprint, 0, 0, &input, &output);