Unverified Commit 05126063 authored by Mark Pearson's avatar Mark Pearson Committed by Ilpo Järvinen
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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: default avatarMark Pearson <mpearson-lenovo@squebb.ca>
Link: https://patch.msgid.link/20251127202959.399040-1-mpearson-lenovo@squebb.ca


Reviewed-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
parent a5b9fdd3

drivers/platform/x86/lenovo/think-lmi.c

+5 −1
Original line number Diff line number Diff line
@@ -195,7 +195,7 @@ static const struct tlmi_cert_guids thinkpad_cert_guid = { 
};



static const struct tlmi_cert_guids thinkcenter_cert_guid = {

	.thumbprint = NULL,

	.thumbprint = LENOVO_CERT_THUMBPRINT_GUID, /* Same GUID as TP */

	.set_bios_setting = LENOVO_TC_SET_BIOS_SETTING_CERT_GUID,

	.save_bios_setting = LENOVO_TC_SAVE_BIOS_SETTING_CERT_GUID,

	.cert_to_password = LENOVO_TC_CERT_TO_PASSWORD_GUID,
@@ -709,6 +709,10 @@ static ssize_t cert_thumbprint(char *buf, const char *arg, int count) 
	if (!tlmi_priv.cert_guid->thumbprint)

		return -EOPNOTSUPP;



	/* Older ThinkCenter BIOS may not have support */

	if (!wmi_has_guid(tlmi_priv.cert_guid->thumbprint))

		return -EOPNOTSUPP;



	status = wmi_evaluate_method(tlmi_priv.cert_guid->thumbprint, 0, 0, &input, &output);

	if (ACPI_FAILURE(status)) {

		kfree(output.pointer);