From bbf79aa264b638fd4717cfb1b8fd5a7997861fe7 Mon Sep 17 00:00:00 2001 From: Supreeth Venkatesh Date: Wed, 27 Sep 2017 19:58:59 +0100 Subject: [PATCH] ArmPkg/Include: Add SVC function IDs for Management Mode. SVCs are in the range 0xC4000060 - 0xC400007f. The functions available to the secure MM partition: 1. Signal completion of MM event handling. 2. Set/Get memory attributes for a memory region at runtime. 3. Get version number of secure partition manager. Also, it defines memory attributes required for set/get operations. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Supreeth Venkatesh Reviewed-by: Ard Biesheuvel --- ArmPkg/Include/IndustryStandard/ArmMmSvc.h | 43 ++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 ArmPkg/Include/IndustryStandard/ArmMmSvc.h diff --git a/ArmPkg/Include/IndustryStandard/ArmMmSvc.h b/ArmPkg/Include/IndustryStandard/ArmMmSvc.h new file mode 100644 index 0000000000..4c7b6c3386 --- /dev/null +++ b/ArmPkg/Include/IndustryStandard/ArmMmSvc.h @@ -0,0 +1,43 @@ +/** @file +* +* 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 +* which accompanies this distribution. The full text of the license may be found at +* http://opensource.org/licenses/bsd-license.php +* +* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +* +**/ + +#ifndef __ARM_MM_SVC_H__ +#define __ARM_MM_SVC_H__ + +/* + * SVC IDs to allow the MM secure partition to initialise itself, handle + * delegated events and request the Secure partition manager to perform + * privileged operations on its behalf. + */ +#define ARM_SVC_ID_SPM_VERSION_AARCH64 0xC4000060 +#define ARM_SVC_ID_SP_EVENT_COMPLETE_AARCH64 0xC4000061 +#define ARM_SVC_ID_SP_GET_MEM_ATTRIBUTES_AARCH64 0xC4000064 +#define ARM_SVC_ID_SP_SET_MEM_ATTRIBUTES_AARCH64 0xC4000065 + +#define SET_MEM_ATTR_DATA_PERM_MASK 0x3 +#define SET_MEM_ATTR_DATA_PERM_SHIFT 0 +#define SET_MEM_ATTR_DATA_PERM_NO_ACCESS 0 +#define SET_MEM_ATTR_DATA_PERM_RW 1 +#define SET_MEM_ATTR_DATA_PERM_RO 3 + +#define SET_MEM_ATTR_CODE_PERM_MASK 0x1 +#define SET_MEM_ATTR_CODE_PERM_SHIFT 2 +#define SET_MEM_ATTR_CODE_PERM_X 0 +#define SET_MEM_ATTR_CODE_PERM_XN 1 + +#define SET_MEM_ATTR_MAKE_PERM_REQUEST(d_perm, c_perm) \ + ((((c_perm) & SET_MEM_ATTR_CODE_PERM_MASK) << SET_MEM_ATTR_CODE_PERM_SHIFT) | \ + (( (d_perm) & SET_MEM_ATTR_DATA_PERM_MASK) << SET_MEM_ATTR_DATA_PERM_SHIFT)) + +#endif -- 2.39.2