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ArmPkg/Include: Add SVC function IDs for Management Mode.

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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 <supreeth.venkatesh@arm.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
This commit is contained in:
Supreeth Venkatesh 2017-09-27 19:58:59 +01:00 committed by Ard Biesheuvel
parent 542bc11a02
commit bbf79aa264
1 changed files with 43 additions and 0 deletions

43
ArmPkg/Include/IndustryStandard/ArmMmSvc.h Normal file

@ -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