From 542bc11a02c02145bb825de9ffb4f76523ff2ca0 Mon Sep 17 00:00:00 2001 From: Supreeth Venkatesh Date: Wed, 27 Sep 2017 19:58:58 +0100 Subject: [PATCH] ArmPkg/Include: Add standard SMC function IDs for MM interface. This patch adds a list of function IDs that fall under the standard SMC range as defined in [1] SMCs associated with Management Mode are in the range 0xC4000040 - 0xC400005f (64 bit) and 0x84000040 - 0x8400005f (32 bit). The function(s) available to the normal world: 1. Request services from the secure MM environment using MM_COMMUNICATE. It also defines MM return codes. [1] http://infocenter.arm.com/help/topic/com.arm.doc.den0060a/DEN0060A_ARM_MM_Interface_Specification.pdf. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Achin Gupta Signed-off-by: Supreeth Venkatesh Reviewed-by: Ard Biesheuvel --- ArmPkg/Include/IndustryStandard/ArmStdSmc.h | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-) diff --git a/ArmPkg/Include/IndustryStandard/ArmStdSmc.h b/ArmPkg/Include/IndustryStandard/ArmStdSmc.h index 593a3ce729..37d0796649 100644 --- a/ArmPkg/Include/IndustryStandard/ArmStdSmc.h +++ b/ArmPkg/Include/IndustryStandard/ArmStdSmc.h @@ -1,6 +1,6 @@ /** @file * -* Copyright (c) 2012-2014, ARM Limited. All rights reserved. +* Copyright (c) 2012-2017, ARM Limited. All rights reserved. * * This program and the accompanying materials * are licensed and made available under the terms and conditions of the BSD License @@ -40,6 +40,24 @@ #define ARM_SMC_STD_REVISION_MAJOR 0x0 #define ARM_SMC_STD_REVISION_MINOR 0x1 +/* + * Management Mode (MM) calls cover a subset of the Standard Service Call range. + * The list below is not exhaustive. + */ +#define ARM_SMC_ID_MM_VERSION_AARCH32 0x84000040 +#define ARM_SMC_ID_MM_VERSION_AARCH64 0xC4000040 + +// Request service from secure standalone MM environment +#define ARM_SMC_ID_MM_COMMUNICATE_AARCH32 0x84000041 +#define ARM_SMC_ID_MM_COMMUNICATE_AARCH64 0xC4000041 + +/* MM return error codes */ +#define ARM_SMC_MM_RET_SUCCESS 0 +#define ARM_SMC_MM_RET_NOT_SUPPORTED -1 +#define ARM_SMC_MM_RET_INVALID_PARAMS -2 +#define ARM_SMC_MM_RET_DENIED -3 +#define ARM_SMC_MM_RET_NO_MEMORY -4 + /* * Power State Coordination Interface (PSCI) calls cover a subset of the * Standard Service Call range. -- 2.39.2