[edk2-devel] [PATCH v2 2/2] StandaloneMmPkg: Arm: Update to use the new StandaloneMmCpu driver
Tuan Phan
tphan at ventanamicro.com
Thu Sep 14 23:10:37 UTC 2023
Update entry point library for Arm to use the new platform independent
StandaloneMmCpu driver.
Signed-off-by: Tuan Phan <tphan at ventanamicro.com>
---
.../Library/Arm/StandaloneMmCoreEntryPoint.h | 17 ++------
.../Arm/CreateHobList.c | 43 ++++++++++---------
.../Arm/StandaloneMmCoreEntryPoint.c | 15 ++++++-
.../StandaloneMmCoreEntryPoint.inf | 2 +-
4 files changed, 40 insertions(+), 37 deletions(-)
diff --git a/StandaloneMmPkg/Include/Library/Arm/StandaloneMmCoreEntryPoint.h b/StandaloneMmPkg/Include/Library/Arm/StandaloneMmCoreEntryPoint.h
index 41bf0f132b4f..dbb81610ff8e 100644
--- a/StandaloneMmPkg/Include/Library/Arm/StandaloneMmCoreEntryPoint.h
+++ b/StandaloneMmPkg/Include/Library/Arm/StandaloneMmCoreEntryPoint.h
@@ -10,6 +10,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
#ifndef __STANDALONEMMCORE_ENTRY_POINT_H__
#define __STANDALONEMMCORE_ENTRY_POINT_H__
+#include <StandaloneMmCpu.h>
#include <Library/PeCoffLib.h>
#include <Library/FvLib.h>
@@ -47,18 +48,6 @@ typedef struct {
EFI_SECURE_PARTITION_CPU_INFO *CpuInfo;
} EFI_SECURE_PARTITION_BOOT_INFO;
-typedef
-EFI_STATUS
-(*PI_MM_ARM_TF_CPU_DRIVER_ENTRYPOINT) (
- IN UINTN EventId,
- IN UINTN CpuNumber,
- IN UINTN NsCommBufferAddr
- );
-
-typedef struct {
- PI_MM_ARM_TF_CPU_DRIVER_ENTRYPOINT *ArmTfCpuDriverEpPtr;
-} ARM_TF_CPU_DRIVER_EP_DESCRIPTOR;
-
typedef RETURN_STATUS (*REGION_PERMISSION_UPDATE_FUNC) (
IN EFI_PHYSICAL_ADDRESS BaseAddress,
IN UINT64 Length
@@ -145,8 +134,8 @@ LocateStandaloneMmCorePeCoffData (
VOID *
EFIAPI
CreateHobListFromBootInfo (
- IN OUT PI_MM_ARM_TF_CPU_DRIVER_ENTRYPOINT *CpuDriverEntryPoint,
- IN EFI_SECURE_PARTITION_BOOT_INFO *PayloadBootInfo
+ IN OUT PI_MM_CPU_DRIVER_ENTRYPOINT *CpuDriverEntryPoint,
+ IN EFI_SECURE_PARTITION_BOOT_INFO *PayloadBootInfo
);
/**
diff --git a/StandaloneMmPkg/Library/StandaloneMmCoreEntryPoint/Arm/CreateHobList.c b/StandaloneMmPkg/Library/StandaloneMmCoreEntryPoint/Arm/CreateHobList.c
index 2ac2d354f06a..80ed532352af 100644
--- a/StandaloneMmPkg/Library/StandaloneMmCoreEntryPoint/Arm/CreateHobList.c
+++ b/StandaloneMmPkg/Library/StandaloneMmCoreEntryPoint/Arm/CreateHobList.c
@@ -13,6 +13,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
#include <Guid/MmramMemoryReserve.h>
#include <Guid/MpInformation.h>
+#include <StandaloneMmCpu.h>
#include <Library/Arm/StandaloneMmCoreEntryPoint.h>
#include <Library/ArmMmuLib.h>
#include <Library/ArmSvcLib.h>
@@ -39,7 +40,7 @@ extern EFI_GUID gEfiStandaloneMmNonSecureBufferGuid;
// GUID to identify HOB where the entry point of the CPU driver will be
// populated to allow this entry point driver to invoke it upon receipt of an
// event
-extern EFI_GUID gEfiArmTfCpuDriverEpDescriptorGuid;
+extern EFI_GUID gEfiMmCpuDriverEpDescriptorGuid;
/**
Use the boot information passed by privileged firmware to populate a HOB list
@@ -52,22 +53,22 @@ extern EFI_GUID gEfiArmTfCpuDriverEpDescriptorGuid;
**/
VOID *
CreateHobListFromBootInfo (
- IN OUT PI_MM_ARM_TF_CPU_DRIVER_ENTRYPOINT *CpuDriverEntryPoint,
- IN EFI_SECURE_PARTITION_BOOT_INFO *PayloadBootInfo
+ IN OUT PI_MM_CPU_DRIVER_ENTRYPOINT *CpuDriverEntryPoint,
+ IN EFI_SECURE_PARTITION_BOOT_INFO *PayloadBootInfo
)
{
- EFI_HOB_HANDOFF_INFO_TABLE *HobStart;
- EFI_RESOURCE_ATTRIBUTE_TYPE Attributes;
- UINT32 Index;
- UINT32 BufferSize;
- UINT32 Flags;
- EFI_MMRAM_HOB_DESCRIPTOR_BLOCK *MmramRangesHob;
- EFI_MMRAM_DESCRIPTOR *MmramRanges;
- EFI_MMRAM_DESCRIPTOR *NsCommBufMmramRange;
- MP_INFORMATION_HOB_DATA *MpInformationHobData;
- EFI_PROCESSOR_INFORMATION *ProcInfoBuffer;
- EFI_SECURE_PARTITION_CPU_INFO *CpuInfo;
- ARM_TF_CPU_DRIVER_EP_DESCRIPTOR *CpuDriverEntryPointDesc;
+ EFI_HOB_HANDOFF_INFO_TABLE *HobStart;
+ EFI_RESOURCE_ATTRIBUTE_TYPE Attributes;
+ UINT32 Index;
+ UINT32 BufferSize;
+ UINT32 Flags;
+ EFI_MMRAM_HOB_DESCRIPTOR_BLOCK *MmramRangesHob;
+ EFI_MMRAM_DESCRIPTOR *MmramRanges;
+ EFI_MMRAM_DESCRIPTOR *NsCommBufMmramRange;
+ MP_INFORMATION_HOB_DATA *MpInformationHobData;
+ EFI_PROCESSOR_INFORMATION *ProcInfoBuffer;
+ EFI_SECURE_PARTITION_CPU_INFO *CpuInfo;
+ MM_CPU_DRIVER_EP_DESCRIPTOR *CpuDriverEntryPointDesc;
// Create a hoblist with a PHIT and EOH
HobStart = HobConstructor (
@@ -144,13 +145,13 @@ CreateHobListFromBootInfo (
// Create a Guided HOB to enable the ARM TF CPU driver to share its entry
// point and populate it with the address of the shared buffer
- CpuDriverEntryPointDesc = (ARM_TF_CPU_DRIVER_EP_DESCRIPTOR *)BuildGuidHob (
- &gEfiArmTfCpuDriverEpDescriptorGuid,
- sizeof (ARM_TF_CPU_DRIVER_EP_DESCRIPTOR)
- );
+ CpuDriverEntryPointDesc = (MM_CPU_DRIVER_EP_DESCRIPTOR *)BuildGuidHob (
+ &gEfiMmCpuDriverEpDescriptorGuid,
+ sizeof (MM_CPU_DRIVER_EP_DESCRIPTOR)
+ );
- *CpuDriverEntryPoint = NULL;
- CpuDriverEntryPointDesc->ArmTfCpuDriverEpPtr = CpuDriverEntryPoint;
+ *CpuDriverEntryPoint = NULL;
+ CpuDriverEntryPointDesc->MmCpuDriverEpPtr = CpuDriverEntryPoint;
// Find the size of the GUIDed HOB with SRAM ranges
BufferSize = sizeof (EFI_MMRAM_HOB_DESCRIPTOR_BLOCK);
diff --git a/StandaloneMmPkg/Library/StandaloneMmCoreEntryPoint/Arm/StandaloneMmCoreEntryPoint.c b/StandaloneMmPkg/Library/StandaloneMmCoreEntryPoint/Arm/StandaloneMmCoreEntryPoint.c
index 96de10405af8..900e0252ef9f 100644
--- a/StandaloneMmPkg/Library/StandaloneMmCoreEntryPoint/Arm/StandaloneMmCoreEntryPoint.c
+++ b/StandaloneMmPkg/Library/StandaloneMmCoreEntryPoint/Arm/StandaloneMmCoreEntryPoint.c
@@ -15,6 +15,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
#include <Guid/MmramMemoryReserve.h>
#include <Guid/MpInformation.h>
+#include <StandaloneMmCpu.h>
#include <Library/ArmSvcLib.h>
#include <Library/DebugLib.h>
#include <Library/HobLib.h>
@@ -41,7 +42,7 @@ STATIC CONST UINT32 mSpmMinorVerFfa = SPM_MINOR_VERSION_FFA;
#define BOOT_PAYLOAD_VERSION 1
-PI_MM_ARM_TF_CPU_DRIVER_ENTRYPOINT CpuDriverEntryPoint = NULL;
+PI_MM_CPU_DRIVER_ENTRYPOINT CpuDriverEntryPoint = NULL;
/**
Retrieve a pointer to and print the boot information passed by privileged
@@ -140,6 +141,18 @@ DelegatedEventLoop (
DEBUG ((DEBUG_INFO, "X6 : 0x%x\n", (UINT32)EventCompleteSvcArgs->Arg6));
DEBUG ((DEBUG_INFO, "X7 : 0x%x\n", (UINT32)EventCompleteSvcArgs->Arg7));
+ //
+ // ARM TF passes SMC FID of the MM_COMMUNICATE interface as the Event ID upon
+ // receipt of a synchronous MM request. Use the Event ID to distinguish
+ // between synchronous and asynchronous events.
+ //
+ if ((ARM_SMC_ID_MM_COMMUNICATE != (UINT32)EventCompleteSvcArgs->Arg0) &&
+ (ARM_SVC_ID_FFA_MSG_SEND_DIRECT_REQ != (UINT32)EventCompleteSvcArgs->Arg0))
+ {
+ DEBUG ((DEBUG_ERROR, "UnRecognized Event - 0x%x\n", (UINT32)EventCompleteSvcArgs->Arg0));
+ continue;
+ }
+
FfaEnabled = FeaturePcdGet (PcdFfaEnable);
if (FfaEnabled) {
Status = CpuDriverEntryPoint (
diff --git a/StandaloneMmPkg/Library/StandaloneMmCoreEntryPoint/StandaloneMmCoreEntryPoint.inf b/StandaloneMmPkg/Library/StandaloneMmCoreEntryPoint/StandaloneMmCoreEntryPoint.inf
index 75cfb98c0e75..d41d7630b614 100644
--- a/StandaloneMmPkg/Library/StandaloneMmCoreEntryPoint/StandaloneMmCoreEntryPoint.inf
+++ b/StandaloneMmPkg/Library/StandaloneMmCoreEntryPoint/StandaloneMmCoreEntryPoint.inf
@@ -49,7 +49,7 @@
gMpInformationHobGuid
gEfiMmPeiMmramMemoryReserveGuid
gEfiStandaloneMmNonSecureBufferGuid
- gEfiArmTfCpuDriverEpDescriptorGuid
+ gEfiMmCpuDriverEpDescriptorGuid
[FeaturePcd.ARM, FeaturePcd.AARCH64]
gArmTokenSpaceGuid.PcdFfaEnable
--
2.25.1
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