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StandaloneMmPkg/MmIpl: Install MmCommunicationPpi

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Install MmCommunicationPpi under PEI stage, PEIM could
use this PPI to communicate with MM handler

Signed-off-by: Hongbin1 Zhang <hongbin1.zhang@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Cc: Wei6 Xu <wei6.xu@intel.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Supreeth Venkatesh <supreeth.venkatesh@arm.com>
This commit is contained in:
Hongbin1 Zhang 2024-05-09 10:06:09 +08:00 committed by mergify[bot]
parent 8d764088ea
commit e98eca076a
3 changed files with 148 additions and 1 deletions
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119
StandaloneMmPkg/Drivers/StandaloneMmIplPei/StandaloneMmIplPei.c
View File

@ -8,6 +8,119 @@
#include "StandaloneMmIplPei.h"
EFI_PEI_MM_COMMUNICATION_PPI mMmCommunicationPpi = { Communicate };
EFI_PEI_PPI_DESCRIPTOR mPpiList = {
(EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
&gEfiPeiMmCommunicationPpiGuid,
&mMmCommunicationPpi
};
/**
Communicates with a registered handler.
This function provides a service to send and receive messages from a registered UEFI service.
@param[in] This The EFI_PEI_MM_COMMUNICATION_PPI instance.
@param[in, out] CommBuffer A pointer to the buffer to convey into MMRAM.
@param[in, out] CommSize The size of the data buffer being passed in.On exit, the size of data
being returned. Zero if the handler does not wish to reply with any data.
@retval EFI_SUCCESS The message was successfully posted.
@retval EFI_INVALID_PARAMETER The CommBuffer was NULL.
@retval EFI_NOT_STARTED The service is NOT started.
**/
EFI_STATUS
EFIAPI
Communicate (
IN CONST EFI_PEI_MM_COMMUNICATION_PPI *This,
IN OUT VOID *CommBuffer,
IN OUT UINTN *CommSize
)
{
EFI_STATUS Status;
EFI_PEI_MM_CONTROL_PPI *MmControl;
UINT8 SmiCommand;
UINTN Size;
UINTN TempCommSize;
EFI_HOB_GUID_TYPE *GuidHob;
MM_COMM_BUFFER *MmCommBuffer;
MM_COMM_BUFFER_STATUS *MmCommBufferStatus;
DEBUG ((DEBUG_INFO, "StandaloneMmIpl Communicate Enter\n"));
GuidHob = GetFirstGuidHob (&gMmCommBufferHobGuid);
if (GuidHob != NULL) {
MmCommBuffer = GET_GUID_HOB_DATA (GuidHob);
MmCommBufferStatus = (MM_COMM_BUFFER_STATUS *)(UINTN)MmCommBuffer->Status;
} else {
DEBUG ((DEBUG_ERROR, "MmCommBuffer is not existed !!!\n"));
ASSERT (GuidHob != NULL);
return EFI_NOT_FOUND;
}
SmiCommand = 0;
Size = sizeof (SmiCommand);
//
// Check parameters
//
if ((CommBuffer == NULL) || (CommSize == NULL)) {
return EFI_INVALID_PARAMETER;
} else {
TempCommSize = *CommSize;
//
// CommSize must hold HeaderGuid and MessageLength
//
if (TempCommSize < OFFSET_OF (EFI_MM_COMMUNICATE_HEADER, Data)) {
return EFI_INVALID_PARAMETER;
}
}
if (TempCommSize > EFI_PAGES_TO_SIZE (MmCommBuffer->NumberOfPages)) {
DEBUG ((DEBUG_ERROR, "Communicate buffer size (%d) is over MAX (%d) size!", TempCommSize, EFI_PAGES_TO_SIZE (MmCommBuffer->NumberOfPages)));
return EFI_INVALID_PARAMETER;
}
CopyMem ((VOID *)(UINTN)MmCommBuffer->PhysicalStart, CommBuffer, TempCommSize);
MmCommBufferStatus->IsCommBufferValid = TRUE;
//
// Generate Software SMI
//
Status = PeiServicesLocatePpi (&gEfiPeiMmControlPpiGuid, 0, NULL, (VOID **)&MmControl);
ASSERT_EFI_ERROR (Status);
Status = MmControl->Trigger (
(EFI_PEI_SERVICES **)GetPeiServicesTablePointer (),
MmControl,
(INT8 *)&SmiCommand,
&Size,
FALSE,
0
);
ASSERT_EFI_ERROR (Status);
//
// Return status from software SMI
//
*CommSize = (UINTN)MmCommBufferStatus->ReturnBufferSize;
//
// Copy the returned data to the non-mmram buffer (CommBuffer)
//
CopyMem (CommBuffer, (VOID *)(MmCommBuffer->PhysicalStart), *CommSize);
Status = (EFI_STATUS)MmCommBufferStatus->ReturnStatus;
if (Status != EFI_SUCCESS) {
DEBUG ((DEBUG_ERROR, "StandaloneMmIpl Communicate failed (%r)\n", Status));
} else {
MmCommBufferStatus->IsCommBufferValid = FALSE;
}
return Status;
}
/**
Search all the available firmware volumes for MM Core driver.
@ -431,5 +544,11 @@ StandaloneMmIplPeiEntry (
Status = ExecuteMmCoreFromMmram (MmCommBuffer);
ASSERT_EFI_ERROR (Status);
//
// Install MmCommunicationPpi
//
Status = PeiServicesInstallPpi (&mPpiList);
ASSERT_EFI_ERROR (Status);
return EFI_SUCCESS;
}

26
StandaloneMmPkg/Drivers/StandaloneMmIplPei/StandaloneMmIplPei.h
View File

@ -20,5 +20,31 @@
#include <Library/BaseMemoryLib.h>
#include <Library/PeCoffLib.h>
#include <Library/CacheMaintenanceLib.h>
#include <Library/PeiServicesTablePointerLib.h>
#include <Ppi/MmControl.h>
#include <Ppi/MmCommunication.h>
#include <Protocol/MmCommunication.h>
/**
Communicates with a registered handler.
This function provides a service to send and receive messages from a registered UEFI service.
@param[in] This The EFI_PEI_MM_COMMUNICATION_PPI instance.
@param[in, out] CommBuffer A pointer to the buffer to convey into MMRAM.
@param[in, out] CommSize The size of the data buffer being passed in.On exit, the size of data
being returned. Zero if the handler does not wish to reply with any data.
@retval EFI_SUCCESS The message was successfully posted.
@retval EFI_INVALID_PARAMETER The CommBuffer was NULL.
@retval EFI_NOT_STARTED The service is NOT started.
**/
EFI_STATUS
EFIAPI
Communicate (
IN CONST EFI_PEI_MM_COMMUNICATION_PPI *This,
IN OUT VOID *CommBuffer,
IN OUT UINTN *CommSize
);
#endif

4
StandaloneMmPkg/Drivers/StandaloneMmIplPei/StandaloneMmIplPei.inf
View File

@ -47,9 +47,11 @@
gEfiSmmSmramMemoryGuid
[Ppis]
gEfiPeiMmControlPpiGuid
gEfiPeiMmCommunicationPpiGuid
[Pcd]
gEfiMdeModulePkgTokenSpaceGuid.PcdMmCommBufferPages
[Depex]
TRUE
gEfiPeiMmControlPpiGuid