[edk2-devel] [PATCH v2 1/2] StandaloneMmPkg: Make StandaloneMmCpu driver platform independent
Tuan Phan
tphan at ventanamicro.com
Thu Sep 14 23:10:36 UTC 2023
StandaloneMmCpu now can supports more platforms like RISC-V besides
ARM/AARCH64.
Signed-off-by: Tuan Phan <tphan at ventanamicro.com>
---
.../Drivers/StandaloneMmCpu/EventHandle.c | 25 +++--------
.../Drivers/StandaloneMmCpu/StandaloneMmCpu.c | 42 +++++++++----------
.../StandaloneMmCpu/StandaloneMmCpu.inf | 9 ++--
.../StandaloneMmCpu.h | 22 +++++++---
StandaloneMmPkg/StandaloneMmPkg.dec | 2 +-
5 files changed, 46 insertions(+), 54 deletions(-)
rename StandaloneMmPkg/{Drivers/StandaloneMmCpu => Include}/StandaloneMmCpu.h (82%)
diff --git a/StandaloneMmPkg/Drivers/StandaloneMmCpu/EventHandle.c b/StandaloneMmPkg/Drivers/StandaloneMmCpu/EventHandle.c
index 818e147f874c..dc11d4375a02 100644
--- a/StandaloneMmPkg/Drivers/StandaloneMmCpu/EventHandle.c
+++ b/StandaloneMmPkg/Drivers/StandaloneMmCpu/EventHandle.c
@@ -3,6 +3,7 @@
Copyright (c) 2016 HP Development Company, L.P.
Copyright (c) 2016 - 2021, Arm Limited. All rights reserved.
Copyright (c) 2021, Linaro Limited
+ Copyright (c) 2023, Ventana Micro System Inc. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -11,8 +12,6 @@
#include <Base.h>
#include <Pi/PiMmCis.h>
-#include <Library/ArmSvcLib.h>
-#include <Library/ArmLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/HobLib.h>
@@ -22,10 +21,7 @@
#include <Guid/ZeroGuid.h>
#include <Guid/MmramMemoryReserve.h>
-#include <IndustryStandard/ArmFfaSvc.h>
-#include <IndustryStandard/ArmStdSmc.h>
-
-#include "StandaloneMmCpu.h"
+#include <StandaloneMmCpu.h>
EFI_STATUS
EFIAPI
@@ -108,7 +104,7 @@ CheckBufferAddr (
}
/**
- The PI Standalone MM entry point for the TF-A CPU driver.
+ The PI Standalone MM entry point for the CPU driver.
@param [in] EventId The event Id.
@param [in] CpuNumber The CPU number.
@@ -121,7 +117,7 @@ CheckBufferAddr (
@retval EFI_UNSUPPORTED Operation not supported.
**/
EFI_STATUS
-PiMmStandaloneArmTfCpuDriverEntry (
+PiMmStandaloneMmCpuDriverEntry (
IN UINTN EventId,
IN UINTN CpuNumber,
IN UINTN NsCommBufferAddr
@@ -135,17 +131,6 @@ PiMmStandaloneArmTfCpuDriverEntry (
DEBUG ((DEBUG_INFO, "Received event - 0x%x on cpu %d\n", EventId, CpuNumber));
Status = EFI_SUCCESS;
- //
- // 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 != EventId) &&
- (ARM_SVC_ID_FFA_MSG_SEND_DIRECT_REQ != EventId))
- {
- DEBUG ((DEBUG_ERROR, "UnRecognized Event - 0x%x\n", EventId));
- return EFI_INVALID_PARAMETER;
- }
// Perform parameter validation of NsCommBufferAddr
if (NsCommBufferAddr == (UINTN)NULL) {
@@ -177,7 +162,7 @@ PiMmStandaloneArmTfCpuDriverEntry (
}
// X1 contains the VA of the normal world memory accessible from
- // S-EL0
+ // secure world.
CopyMem (GuidedEventContext, (CONST VOID *)NsCommBufferAddr, NsCommBufferSize);
// Stash the pointer to the allocated Event Context for this CPU
diff --git a/StandaloneMmPkg/Drivers/StandaloneMmCpu/StandaloneMmCpu.c b/StandaloneMmPkg/Drivers/StandaloneMmCpu/StandaloneMmCpu.c
index 3d1dc6181bd9..c5ec1a5a80c5 100644
--- a/StandaloneMmPkg/Drivers/StandaloneMmCpu/StandaloneMmCpu.c
+++ b/StandaloneMmPkg/Drivers/StandaloneMmCpu/StandaloneMmCpu.c
@@ -3,6 +3,7 @@
Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
Copyright (c) 2016 HP Development Company, L.P.
Copyright (c) 2016 - 2021, Arm Limited. All rights reserved.
+ Copyright (c) 2023, Ventana Micro System Inc. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -10,10 +11,7 @@
#include <Base.h>
#include <Pi/PiMmCis.h>
-#include <Library/Arm/StandaloneMmCoreEntryPoint.h>
#include <Library/DebugLib.h>
-#include <Library/ArmSvcLib.h>
-#include <Library/ArmLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/HobLib.h>
@@ -22,7 +20,7 @@
#include <Guid/ZeroGuid.h>
#include <Guid/MmramMemoryReserve.h>
-#include "StandaloneMmCpu.h"
+#include <StandaloneMmCpu.h>
// GUID to identify HOB with whereabouts of communication buffer with Normal
// World
@@ -31,7 +29,7 @@ extern EFI_GUID gEfiStandaloneMmNonSecureBufferGuid;
// GUID to identify HOB where the entry point of this CPU driver will be
// populated to allow the entry point driver to invoke it upon receipt of an
// event
-extern EFI_GUID gEfiArmTfCpuDriverEpDescriptorGuid;
+extern EFI_GUID gEfiMmCpuDriverEpDescriptorGuid;
//
// Private copy of the MM system table for future use
@@ -96,17 +94,17 @@ StandaloneMmCpuInitialize (
IN EFI_MM_SYSTEM_TABLE *SystemTable // not actual systemtable
)
{
- ARM_TF_CPU_DRIVER_EP_DESCRIPTOR *CpuDriverEntryPointDesc;
- EFI_CONFIGURATION_TABLE *ConfigurationTable;
- MP_INFORMATION_HOB_DATA *MpInformationHobData;
- EFI_MMRAM_DESCRIPTOR *NsCommBufMmramRange;
- EFI_STATUS Status;
- EFI_HANDLE DispatchHandle;
- UINT32 MpInfoSize;
- UINTN Index;
- UINTN ArraySize;
- VOID *HobStart;
- EFI_MMRAM_HOB_DESCRIPTOR_BLOCK *MmramRangesHob;
+ MM_CPU_DRIVER_EP_DESCRIPTOR *CpuDriverEntryPointDesc;
+ EFI_CONFIGURATION_TABLE *ConfigurationTable;
+ MP_INFORMATION_HOB_DATA *MpInformationHobData;
+ EFI_MMRAM_DESCRIPTOR *NsCommBufMmramRange;
+ EFI_STATUS Status;
+ EFI_HANDLE DispatchHandle;
+ UINT32 MpInfoSize;
+ UINTN Index;
+ UINTN ArraySize;
+ VOID *HobStart;
+ EFI_MMRAM_HOB_DESCRIPTOR_BLOCK *MmramRangesHob;
ASSERT (SystemTable != NULL);
mMmst = SystemTable;
@@ -133,7 +131,7 @@ StandaloneMmCpuInitialize (
}
// Retrieve the Hoblist from the MMST to extract the details of the NS
- // communication buffer that has been reserved by S-EL1/EL3
+ // communication buffer that has been reserved for StandaloneMmPkg
ConfigurationTable = mMmst->MmConfigurationTable;
for (Index = 0; Index < mMmst->NumberOfTableEntries; Index++) {
if (CompareGuid (&gEfiHobListGuid, &(ConfigurationTable[Index].VendorGuid))) {
@@ -154,11 +152,11 @@ StandaloneMmCpuInitialize (
//
Status = GetGuidedHobData (
HobStart,
- &gEfiArmTfCpuDriverEpDescriptorGuid,
+ &gEfiMmCpuDriverEpDescriptorGuid,
(VOID **)&CpuDriverEntryPointDesc
);
if (EFI_ERROR (Status)) {
- DEBUG ((DEBUG_ERROR, "ArmTfCpuDriverEpDesc HOB data extraction failed - 0x%x\n", Status));
+ DEBUG ((DEBUG_ERROR, "MmCpuDriverEpDesc HOB data extraction failed - 0x%x\n", Status));
return Status;
}
@@ -166,10 +164,10 @@ StandaloneMmCpuInitialize (
DEBUG ((
DEBUG_INFO,
"Sharing Cpu Driver EP *0x%lx = 0x%lx\n",
- (UINTN)CpuDriverEntryPointDesc->ArmTfCpuDriverEpPtr,
- (UINTN)PiMmStandaloneArmTfCpuDriverEntry
+ (UINTN)CpuDriverEntryPointDesc->MmCpuDriverEpPtr,
+ (UINTN)PiMmStandaloneMmCpuDriverEntry
));
- *(CpuDriverEntryPointDesc->ArmTfCpuDriverEpPtr) = PiMmStandaloneArmTfCpuDriverEntry;
+ *(CpuDriverEntryPointDesc->MmCpuDriverEpPtr) = PiMmStandaloneMmCpuDriverEntry;
// Find the descriptor that contains the whereabouts of the buffer for
// communication with the Normal world.
diff --git a/StandaloneMmPkg/Drivers/StandaloneMmCpu/StandaloneMmCpu.inf b/StandaloneMmPkg/Drivers/StandaloneMmCpu/StandaloneMmCpu.inf
index 1fcb17d89d36..486ccbac1b7c 100644
--- a/StandaloneMmPkg/Drivers/StandaloneMmCpu/StandaloneMmCpu.inf
+++ b/StandaloneMmPkg/Drivers/StandaloneMmCpu/StandaloneMmCpu.inf
@@ -1,9 +1,10 @@
## @file
-# Standalone MM CPU driver for ARM Standard Platforms
+# Standalone MM CPU driver
#
# Copyright (c) 2009, Apple Inc. All rights reserved.<BR>
# Copyright (c) 2016 HP Development Company, L.P.
# Copyright (c) 2017 - 2021, Arm Limited. All rights reserved.
+# Copyright (c) 2023, Ventana Micro System Inc. All rights reserved.
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
##
@@ -19,18 +20,14 @@
[Sources]
StandaloneMmCpu.c
- StandaloneMmCpu.h
EventHandle.c
[Packages]
- ArmPkg/ArmPkg.dec
MdePkg/MdePkg.dec
MdeModulePkg/MdeModulePkg.dec
StandaloneMmPkg/StandaloneMmPkg.dec
[LibraryClasses]
- ArmLib
- ArmSvcLib
BaseMemoryLib
DebugLib
HobLib
@@ -46,7 +43,7 @@
gZeroGuid
gMpInformationHobGuid
gEfiStandaloneMmNonSecureBufferGuid
- gEfiArmTfCpuDriverEpDescriptorGuid
+ gEfiMmCpuDriverEpDescriptorGuid
[Depex]
TRUE
diff --git a/StandaloneMmPkg/Drivers/StandaloneMmCpu/StandaloneMmCpu.h b/StandaloneMmPkg/Include/StandaloneMmCpu.h
similarity index 82%
rename from StandaloneMmPkg/Drivers/StandaloneMmCpu/StandaloneMmCpu.h
rename to StandaloneMmPkg/Include/StandaloneMmCpu.h
index 3d4698ec1957..1dce7c132ec2 100644
--- a/StandaloneMmPkg/Drivers/StandaloneMmCpu/StandaloneMmCpu.h
+++ b/StandaloneMmPkg/Include/StandaloneMmCpu.h
@@ -7,14 +7,26 @@
**/
-#ifndef _ARM_TF_CPU_DRIVER_H_
-#define _ARM_TF_CPU_DRIVER_H_
+#ifndef MM_CPU_DRIVER_H_
+#define MM_CPU_DRIVER_H_
#include <Protocol/MmCommunication2.h>
#include <Protocol/MmConfiguration.h>
#include <Protocol/MmCpu.h>
#include <Guid/MpInformation.h>
+typedef
+EFI_STATUS
+(*PI_MM_CPU_DRIVER_ENTRYPOINT) (
+ IN UINTN EventId,
+ IN UINTN CpuNumber,
+ IN UINTN NsCommBufferAddr
+ );
+
+typedef struct {
+ PI_MM_CPU_DRIVER_ENTRYPOINT *MmCpuDriverEpPtr;
+} MM_CPU_DRIVER_EP_DESCRIPTOR;
+
//
// CPU driver initialization specific declarations
//
@@ -35,7 +47,7 @@ extern MP_INFORMATION_HOB_DATA *mMpInformationHobData;
extern EFI_MM_CONFIGURATION_PROTOCOL mMmConfig;
/**
- The PI Standalone MM entry point for the TF-A CPU driver.
+ The PI Standalone MM entry point for the CPU driver.
@param [in] EventId The event Id.
@param [in] CpuNumber The CPU number.
@@ -48,7 +60,7 @@ extern EFI_MM_CONFIGURATION_PROTOCOL mMmConfig;
@retval EFI_UNSUPPORTED Operation not supported.
**/
EFI_STATUS
-PiMmStandaloneArmTfCpuDriverEntry (
+PiMmStandaloneMmCpuDriverEntry (
IN UINTN EventId,
IN UINTN CpuNumber,
IN UINTN NsCommBufferAddr
@@ -79,4 +91,4 @@ PiMmCpuTpFwRootMmiHandler (
IN OUT UINTN *CommBufferSize OPTIONAL
);
-#endif
+#endif /* MM_CPU_DRIVER_H_ */
diff --git a/StandaloneMmPkg/StandaloneMmPkg.dec b/StandaloneMmPkg/StandaloneMmPkg.dec
index 46784d94e421..f7cb9e8e2687 100644
--- a/StandaloneMmPkg/StandaloneMmPkg.dec
+++ b/StandaloneMmPkg/StandaloneMmPkg.dec
@@ -46,5 +46,5 @@
gEfiMmPeiMmramMemoryReserveGuid = { 0x0703f912, 0xbf8d, 0x4e2a, { 0xbe, 0x07, 0xab, 0x27, 0x25, 0x25, 0xc5, 0x92 }}
gEfiStandaloneMmNonSecureBufferGuid = { 0xf00497e3, 0xbfa2, 0x41a1, { 0x9d, 0x29, 0x54, 0xc2, 0xe9, 0x37, 0x21, 0xc5 }}
- gEfiArmTfCpuDriverEpDescriptorGuid = { 0x6ecbd5a1, 0xc0f8, 0x4702, { 0x83, 0x01, 0x4f, 0xc2, 0xc5, 0x47, 0x0a, 0x51 }}
+ gEfiMmCpuDriverEpDescriptorGuid = { 0x6ecbd5a1, 0xc0f8, 0x4702, { 0x83, 0x01, 0x4f, 0xc2, 0xc5, 0x47, 0x0a, 0x51 }}
--
2.25.1
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