This patch adds a list of function IDs that fall under the standard SMC range as defined in http://infocenter.arm.com/help/topic/com.arm.doc.den0060a/DEN0060A_ARM_MM_Interface_Specification.pdf.
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. 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 and MM return codes. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Achin Gupta <achin.gu...@arm.com> Signed-off-by: Supreeth Venkatesh <supreeth.venkat...@arm.com> --- ArmPkg/Include/IndustryStandard/ArmStdSmc.h | 46 ++++++++++++++++++++++++++++- 1 file changed, 45 insertions(+), 1 deletion(-) diff --git a/ArmPkg/Include/IndustryStandard/ArmStdSmc.h b/ArmPkg/Include/IndustryStandard/ArmStdSmc.h index 593a3ce729..a625bc2048 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 +40,50 @@ #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 + +/* + * 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)) + +/* 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. -- 2.14.1 _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel
