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* [PATCH 1/4] platform/x86: think-lmi: Enable opcode support on BIOS settings
@ 2023-05-17 18:19 Mark Pearson
  2023-05-17 18:19 ` [PATCH 2/4] platform/x86: think-lmi: Correct System password interface Mark Pearson
                   ` (3 more replies)
  0 siblings, 4 replies; 13+ messages in thread
From: Mark Pearson @ 2023-05-17 18:19 UTC (permalink / raw)
  To: mpearson-lenovo; +Cc: hdegoede, markgross, platform-driver-x86, linux-kernel

Whilst reviewing some documentation from the FW team on using WMI on
Lenovo system I noticed that we weren't using Opcode support when
changing BIOS settings in the thinkLMI driver.

We should be doing this to ensure we're future proof as the old
non-opcode mechanism has been deprecated.

Tested on X1 Carbon G10 and G11.

Signed-off-by: Mark Pearson <mpearson-lenovo@squebb.ca>
---
 drivers/platform/x86/think-lmi.c | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/x86/think-lmi.c b/drivers/platform/x86/think-lmi.c
index 1138f770149d..d9341305eba9 100644
--- a/drivers/platform/x86/think-lmi.c
+++ b/drivers/platform/x86/think-lmi.c
@@ -1001,7 +1001,28 @@ static ssize_t current_value_store(struct kobject *kobj,
 				tlmi_priv.pwd_admin->save_signature);
 		if (ret)
 			goto out;
-	} else { /* Non certiifcate based authentication */
+	} else if (tlmi_priv.opcode_support) {
+		/* If opcode support is present use that interface */
+		set_str = kasprintf(GFP_KERNEL, "%s,%s;", setting->display_name,
+					new_setting);
+		if (!set_str) {
+			ret = -ENOMEM;
+			goto out;
+		}
+
+		ret = tlmi_simple_call(LENOVO_SET_BIOS_SETTINGS_GUID, set_str);
+		if (ret)
+			goto out;
+
+		if (tlmi_priv.pwd_admin->valid && tlmi_priv.pwd_admin->password[0]) {
+			ret = tlmi_opcode_setting("WmiOpcodePasswordAdmin",
+					tlmi_priv.pwd_admin->password);
+			if (ret)
+				goto out;
+		}
+
+		ret = tlmi_save_bios_settings("");
+	} else { /* old non opcode based authentication method (deprecated)*/
 		if (tlmi_priv.pwd_admin->valid && tlmi_priv.pwd_admin->password[0]) {
 			auth_str = kasprintf(GFP_KERNEL, "%s,%s,%s;",
 					tlmi_priv.pwd_admin->password,
-- 
2.40.1


^ permalink raw reply related	[flat|nested] 13+ messages in thread

end of thread, other threads:[~2023-05-25 13:55 UTC | newest]

Thread overview: 13+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-05-17 18:19 [PATCH 1/4] platform/x86: think-lmi: Enable opcode support on BIOS settings Mark Pearson
2023-05-17 18:19 ` [PATCH 2/4] platform/x86: think-lmi: Correct System password interface Mark Pearson
2023-05-23 10:46   ` Hans de Goede
2023-05-23 12:43     ` Mark Pearson
2023-05-23 13:27       ` Hans de Goede
2023-05-23 16:19         ` Mark Pearson
2023-05-17 18:19 ` [PATCH 3/4] platform/x86: think-lmi: Correct NVME password handling Mark Pearson
2023-05-17 18:19 ` [PATCH 4/4] platform/x86: think-lmi: Don't display unnecessary authentication settings Mark Pearson
2023-05-23 10:46 ` [PATCH 1/4] platform/x86: think-lmi: Enable opcode support on BIOS settings Hans de Goede
2023-05-23 12:36   ` Mark Pearson
2023-05-24 18:20     ` Mark Pearson
2023-05-25  9:52       ` Hans de Goede
2023-05-25 13:54         ` Mark Pearson

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