linux-kernel - [PATCH 3/4] ACPICA: add start method for Arm FF-A

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Message-Id: <20250210232227.97761-4-stuart.yoder@arm.com>
Date: Mon, 10 Feb 2025 17:22:26 -0600
From: Stuart Yoder <stuart.yoder@....com>
To: linux-integrity@...r.kernel.org,
	jarkko@...nel.org,
	peterhuewe@....de,
	jgg@...pe.ca,
	sudeep.holla@....com,
	rafael@...nel.org,
	lenb@...nel.org
Cc: linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 3/4] ACPICA: add start method for Arm FF-A

Add TPM start method for Arm FF-A defined in the TCG ACPI
specification v1.4.

Signed-off-by: Stuart Yoder <stuart.yoder@....com>
---
 include/acpi/actbl3.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/acpi/actbl3.h b/include/acpi/actbl3.h
index 5cd755143b7d..a97b1dbab975 100644
--- a/include/acpi/actbl3.h
+++ b/include/acpi/actbl3.h
@@ -466,6 +466,7 @@ struct acpi_tpm2_phy {
 #define ACPI_TPM2_COMMAND_BUFFER_WITH_ARM_SMC       11	/* V1.2 Rev 8 */
 #define ACPI_TPM2_RESERVED                          12
 #define ACPI_TPM2_COMMAND_BUFFER_WITH_PLUTON        13
+#define ACPI_TPM2_CRB_WITH_ARM_FFA                  15
 
 /* Optional trailer appears after any start_method subtables */
 
-- 
2.34.1