Entry point to the Standalone MM Foundation when initialized during the SEC\r
phase on ARM platforms\r
\r
-Copyright (c) 2017 - 2018, ARM Ltd. All rights reserved.<BR>\r
+Copyright (c) 2017 - 2021, Arm Ltd. All rights reserved.<BR>\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
#include <Library/BaseLib.h>\r
#include <Library/BaseMemoryLib.h>\r
#include <Library/SerialPortLib.h>\r
+#include <Library/PcdLib.h>\r
\r
#include <IndustryStandard/ArmStdSmc.h>\r
#include <IndustryStandard/ArmMmSvc.h>\r
+#include <IndustryStandard/ArmFfaSvc.h>\r
\r
#define SPM_MAJOR_VER_MASK 0xFFFF0000\r
#define SPM_MINOR_VER_MASK 0x0000FFFF\r
#define SPM_MAJOR_VER_SHIFT 16\r
+#define FFA_NOT_SUPPORTED -1\r
\r
-CONST UINT32 SPM_MAJOR_VER = 0;\r
-CONST UINT32 SPM_MINOR_VER = 1;\r
+STATIC CONST UINT32 mSpmMajorVer = SPM_MAJOR_VERSION;\r
+STATIC CONST UINT32 mSpmMinorVer = SPM_MINOR_VERSION;\r
\r
-CONST UINT8 BOOT_PAYLOAD_VERSION = 1;\r
+STATIC CONST UINT32 mSpmMajorVerFfa = SPM_MAJOR_VERSION_FFA;\r
+STATIC CONST UINT32 mSpmMinorVerFfa = SPM_MINOR_VERSION_FFA;\r
+\r
+#define BOOT_PAYLOAD_VERSION 1\r
\r
PI_MM_ARM_TF_CPU_DRIVER_ENTRYPOINT CpuDriverEntryPoint = NULL;\r
\r
/**\r
Retrieve a pointer to and print the boot information passed by privileged\r
- secure firmware\r
+ secure firmware.\r
\r
- @param SharedBufAddress The pointer memory shared with privileged firmware\r
+ @param [in] SharedBufAddress The pointer memory shared with privileged\r
+ firmware.\r
\r
**/\r
EFI_SECURE_PARTITION_BOOT_INFO *\r
return PayloadBootInfo;\r
}\r
\r
+/**\r
+ A loop to delegated events.\r
+\r
+ @param [in] EventCompleteSvcArgs Pointer to the event completion arguments.\r
+\r
+**/\r
VOID\r
EFIAPI\r
DelegatedEventLoop (\r
IN ARM_SVC_ARGS *EventCompleteSvcArgs\r
)\r
{\r
+ BOOLEAN FfaEnabled;\r
EFI_STATUS Status;\r
UINTN SvcStatus;\r
\r
DEBUG ((DEBUG_INFO, "X1 : 0x%x\n", (UINT32) EventCompleteSvcArgs->Arg1));\r
DEBUG ((DEBUG_INFO, "X2 : 0x%x\n", (UINT32) EventCompleteSvcArgs->Arg2));\r
DEBUG ((DEBUG_INFO, "X3 : 0x%x\n", (UINT32) EventCompleteSvcArgs->Arg3));\r
-\r
- Status = CpuDriverEntryPoint (\r
- EventCompleteSvcArgs->Arg0,\r
- EventCompleteSvcArgs->Arg3,\r
- EventCompleteSvcArgs->Arg1\r
- );\r
-\r
- if (EFI_ERROR (Status)) {\r
- DEBUG ((DEBUG_ERROR, "Failed delegated event 0x%x, Status 0x%x\n",\r
- EventCompleteSvcArgs->Arg0, Status));\r
+ DEBUG ((DEBUG_INFO, "X4 : 0x%x\n", (UINT32) EventCompleteSvcArgs->Arg4));\r
+ DEBUG ((DEBUG_INFO, "X5 : 0x%x\n", (UINT32) EventCompleteSvcArgs->Arg5));\r
+ DEBUG ((DEBUG_INFO, "X6 : 0x%x\n", (UINT32) EventCompleteSvcArgs->Arg6));\r
+ DEBUG ((DEBUG_INFO, "X7 : 0x%x\n", (UINT32) EventCompleteSvcArgs->Arg7));\r
+\r
+ FfaEnabled = FeaturePcdGet (PcdFfaEnable);\r
+ if (FfaEnabled) {\r
+ Status = CpuDriverEntryPoint (\r
+ EventCompleteSvcArgs->Arg0,\r
+ EventCompleteSvcArgs->Arg6,\r
+ EventCompleteSvcArgs->Arg3\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ DEBUG ((DEBUG_ERROR, "Failed delegated event 0x%x, Status 0x%x\n",\r
+ EventCompleteSvcArgs->Arg3, Status));\r
+ }\r
+ } else {\r
+ Status = CpuDriverEntryPoint (\r
+ EventCompleteSvcArgs->Arg0,\r
+ EventCompleteSvcArgs->Arg3,\r
+ EventCompleteSvcArgs->Arg1\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ DEBUG ((DEBUG_ERROR, "Failed delegated event 0x%x, Status 0x%x\n",\r
+ EventCompleteSvcArgs->Arg0, Status));\r
+ }\r
}\r
\r
switch (Status) {\r
break;\r
}\r
\r
- EventCompleteSvcArgs->Arg0 = ARM_SVC_ID_SP_EVENT_COMPLETE_AARCH64;\r
- EventCompleteSvcArgs->Arg1 = SvcStatus;\r
+ if (FfaEnabled) {\r
+ EventCompleteSvcArgs->Arg0 = ARM_SVC_ID_FFA_MSG_SEND_DIRECT_RESP_AARCH64;\r
+ EventCompleteSvcArgs->Arg1 = 0;\r
+ EventCompleteSvcArgs->Arg2 = 0;\r
+ EventCompleteSvcArgs->Arg3 = ARM_SVC_ID_SP_EVENT_COMPLETE_AARCH64;\r
+ EventCompleteSvcArgs->Arg4 = SvcStatus;\r
+ } else {\r
+ EventCompleteSvcArgs->Arg0 = ARM_SVC_ID_SP_EVENT_COMPLETE_AARCH64;\r
+ EventCompleteSvcArgs->Arg1 = SvcStatus;\r
+ }\r
}\r
}\r
\r
+/**\r
+ Query the SPM version, check compatibility and return success if compatible.\r
+\r
+ @retval EFI_SUCCESS SPM versions compatible.\r
+ @retval EFI_UNSUPPORTED SPM versions not compatible.\r
+**/\r
STATIC\r
EFI_STATUS\r
GetSpmVersion (VOID)\r
{\r
EFI_STATUS Status;\r
- UINT16 SpmMajorVersion;\r
- UINT16 SpmMinorVersion;\r
+ UINT16 CalleeSpmMajorVer;\r
+ UINT16 CallerSpmMajorVer;\r
+ UINT16 CalleeSpmMinorVer;\r
+ UINT16 CallerSpmMinorVer;\r
UINT32 SpmVersion;\r
ARM_SVC_ARGS SpmVersionArgs;\r
\r
- SpmVersionArgs.Arg0 = ARM_SVC_ID_SPM_VERSION_AARCH32;\r
+ if (FeaturePcdGet (PcdFfaEnable)) {\r
+ SpmVersionArgs.Arg0 = ARM_SVC_ID_FFA_VERSION_AARCH32;\r
+ SpmVersionArgs.Arg1 = mSpmMajorVerFfa << SPM_MAJOR_VER_SHIFT;\r
+ SpmVersionArgs.Arg1 |= mSpmMinorVerFfa;\r
+ CallerSpmMajorVer = mSpmMajorVerFfa;\r
+ CallerSpmMinorVer = mSpmMinorVerFfa;\r
+ } else {\r
+ SpmVersionArgs.Arg0 = ARM_SVC_ID_SPM_VERSION_AARCH32;\r
+ CallerSpmMajorVer = mSpmMajorVer;\r
+ CallerSpmMinorVer = mSpmMinorVer;\r
+ }\r
\r
ArmCallSvc (&SpmVersionArgs);\r
\r
SpmVersion = SpmVersionArgs.Arg0;\r
+ if (SpmVersion == FFA_NOT_SUPPORTED) {\r
+ return EFI_UNSUPPORTED;\r
+ }\r
\r
- SpmMajorVersion = ((SpmVersion & SPM_MAJOR_VER_MASK) >> SPM_MAJOR_VER_SHIFT);\r
- SpmMinorVersion = ((SpmVersion & SPM_MINOR_VER_MASK) >> 0);\r
+ CalleeSpmMajorVer = ((SpmVersion & SPM_MAJOR_VER_MASK) >> SPM_MAJOR_VER_SHIFT);\r
+ CalleeSpmMinorVer = ((SpmVersion & SPM_MINOR_VER_MASK) >> 0);\r
\r
// Different major revision values indicate possibly incompatible functions.\r
// For two revisions, A and B, for which the major revision values are\r
// revision A must work in a compatible way with revision B.\r
// However, it is possible for revision B to have a higher\r
// function count than revision A.\r
- if ((SpmMajorVersion == SPM_MAJOR_VER) &&\r
- (SpmMinorVersion >= SPM_MINOR_VER))\r
+ if ((CalleeSpmMajorVer == CallerSpmMajorVer) &&\r
+ (CalleeSpmMinorVer >= CallerSpmMinorVer))\r
{\r
DEBUG ((DEBUG_INFO, "SPM Version: Major=0x%x, Minor=0x%x\n",\r
- SpmMajorVersion, SpmMinorVersion));\r
+ CalleeSpmMajorVer, CalleeSpmMinorVer));\r
Status = EFI_SUCCESS;\r
}\r
else\r
{\r
- DEBUG ((DEBUG_INFO, "Incompatible SPM Versions.\n Current Version: Major=0x%x, Minor=0x%x.\n Expected: Major=0x%x, Minor>=0x%x.\n",\r
- SpmMajorVersion, SpmMinorVersion, SPM_MAJOR_VER, SPM_MINOR_VER));\r
+ DEBUG ((DEBUG_INFO, "Incompatible SPM Versions.\n Callee Version: Major=0x%x, Minor=0x%x.\n Caller: Major=0x%x, Minor>=0x%x.\n",\r
+ CalleeSpmMajorVer, CalleeSpmMinorVer, CallerSpmMajorVer, CallerSpmMinorVer));\r
Status = EFI_UNSUPPORTED;\r
}\r
\r
return Status;\r
}\r
\r
+/**\r
+ Initialize parameters to be sent via SVC call.\r
+\r
+ @param[out] InitMmFoundationSvcArgs Args structure\r
+ @param[out] Ret Return Code\r
+\r
+**/\r
+STATIC\r
+VOID\r
+InitArmSvcArgs (\r
+ OUT ARM_SVC_ARGS *InitMmFoundationSvcArgs,\r
+ OUT INT32 *Ret\r
+ )\r
+{\r
+ if (FeaturePcdGet (PcdFfaEnable)) {\r
+ InitMmFoundationSvcArgs->Arg0 = ARM_SVC_ID_FFA_MSG_SEND_DIRECT_RESP_AARCH64;\r
+ InitMmFoundationSvcArgs->Arg1 = 0;\r
+ InitMmFoundationSvcArgs->Arg2 = 0;\r
+ InitMmFoundationSvcArgs->Arg3 = ARM_SVC_ID_SP_EVENT_COMPLETE_AARCH64;\r
+ InitMmFoundationSvcArgs->Arg4 = *Ret;\r
+ } else {\r
+ InitMmFoundationSvcArgs->Arg0 = ARM_SVC_ID_SP_EVENT_COMPLETE_AARCH64;\r
+ InitMmFoundationSvcArgs->Arg1 = *Ret;\r
+ }\r
+}\r
+\r
/**\r
The entry point of Standalone MM Foundation.\r
\r
- @param SharedBufAddress Pointer to the Buffer between SPM and SP.\r
- @param cookie1.\r
- @param cookie2.\r
+ @param [in] SharedBufAddress Pointer to the Buffer between SPM and SP.\r
+ @param [in] SharedBufSize Size of the shared buffer.\r
+ @param [in] cookie1 Cookie 1\r
+ @param [in] cookie2 Cookie 2\r
\r
**/\r
VOID\r
EFI_SECURE_PARTITION_BOOT_INFO *PayloadBootInfo;\r
ARM_SVC_ARGS InitMmFoundationSvcArgs;\r
EFI_STATUS Status;\r
+ INT32 Ret;\r
UINT32 SectionHeaderOffset;\r
UINT16 NumberOfSections;\r
VOID *HobStart;\r
\r
// Locate PE/COFF File information for the Standalone MM core module\r
Status = LocateStandaloneMmCorePeCoffData (\r
- (EFI_FIRMWARE_VOLUME_HEADER *) PayloadBootInfo->SpImageBase,\r
+ (EFI_FIRMWARE_VOLUME_HEADER *) (UINTN) PayloadBootInfo->SpImageBase,\r
&TeData,\r
&TeDataSize\r
);\r
DEBUG ((DEBUG_INFO, "Shared Cpu Driver EP 0x%lx\n", (UINT64) CpuDriverEntryPoint));\r
\r
finish:\r
+ if (Status == RETURN_UNSUPPORTED) {\r
+ Ret = -1;\r
+ } else if (Status == RETURN_INVALID_PARAMETER) {\r
+ Ret = -2;\r
+ } else if (Status == EFI_NOT_FOUND) {\r
+ Ret = -7;\r
+ } else {\r
+ Ret = 0;\r
+ }\r
ZeroMem (&InitMmFoundationSvcArgs, sizeof(InitMmFoundationSvcArgs));\r
- InitMmFoundationSvcArgs.Arg0 = ARM_SVC_ID_SP_EVENT_COMPLETE_AARCH64;\r
- InitMmFoundationSvcArgs.Arg1 = Status;\r
+ InitArmSvcArgs (&InitMmFoundationSvcArgs, &Ret);\r
DelegatedEventLoop (&InitMmFoundationSvcArgs);\r
}\r