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StandaloneMmPkg/MmIpl : Add MM core fv location PPI support 

MmIpl should locate MM core FV location PPI to find current MM
FV location.

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 2024-12-17 16:36:07 +08:00 committed by mergify[bot]
parent 47cb080ca4
commit 816a02cb3b
3 changed files with 43 additions and 6 deletions
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47
StandaloneMmPkg/Drivers/StandaloneMmIplPei/StandaloneMmIplPei.c
View File

@ -147,12 +147,47 @@ LocateMmCoreFv (
OUT VOID **MmCoreImageAddress
)
{
EFI_STATUS Status;
UINTN FvIndex;
EFI_PEI_FV_HANDLE VolumeHandle;
EFI_PEI_FILE_HANDLE FileHandle;
EFI_PE32_SECTION *SectionData;
EFI_FV_INFO VolumeInfo;
EFI_STATUS Status;
UINTN FvIndex;
EFI_PEI_FV_HANDLE VolumeHandle;
EFI_PEI_FILE_HANDLE FileHandle;
EFI_PE32_SECTION *SectionData;
EFI_FV_INFO VolumeInfo;
MM_CORE_FV_LOCATION_PPI *MmCoreFvLocation;
//
// The producer of the MmCoreFvLocation PPI is responsible for ensuring
// that it reports the correct Firmware Volume (FV) containing the MmCore.
// If the gMmCoreFvLocationPpiGuid is not found, the system will search
// all Firmware Volumes (FVs) to locate the FV that contains the MM Core.
//
Status = PeiServicesLocatePpi (&gMmCoreFvLocationPpiGuid, 0, NULL, (VOID **)&MmCoreFvLocation);
if (Status == EFI_SUCCESS) {
*MmFvBase = MmCoreFvLocation->Address;
*MmFvSize = MmCoreFvLocation->Size;
FileHandle = NULL;
Status = PeiServicesFfsFindNextFile (EFI_FV_FILETYPE_MM_CORE_STANDALONE, (VOID *)(UINTN)MmCoreFvLocation->Address, &FileHandle);
ASSERT_EFI_ERROR (Status);
if (Status == EFI_SUCCESS) {
ASSERT (FileHandle != NULL);
if (FileHandle != NULL) {
CopyGuid (MmCoreFileName, &((EFI_FFS_FILE_HEADER *)FileHandle)->Name);
//
// Search Section
//
Status = PeiServicesFfsFindSectionData (EFI_SECTION_PE32, FileHandle, MmCoreImageAddress);
ASSERT_EFI_ERROR (Status);
//
// Get MM Core section data.
//
SectionData = (EFI_PE32_SECTION *)((UINT8 *)*MmCoreImageAddress - sizeof (EFI_PE32_SECTION));
ASSERT (SectionData->Type == EFI_SECTION_PE32);
}
}
return EFI_SUCCESS;
}
//
// Search all FV

1
StandaloneMmPkg/Drivers/StandaloneMmIplPei/StandaloneMmIplPei.h
View File

@ -23,6 +23,7 @@
#include <Library/PeiServicesTablePointerLib.h>
#include <Ppi/MmControl.h>
#include <Ppi/MmCommunication.h>
#include <Ppi/MmCoreFvLocationPpi.h>
#include <Protocol/MmCommunication.h>
#include <Library/MmPlatformHobProducerLib.h>

1
StandaloneMmPkg/Drivers/StandaloneMmIplPei/StandaloneMmIplPei.inf
View File

@ -61,6 +61,7 @@
gEfiPeiMmControlPpiGuid
gEfiPeiMmCommunicationPpiGuid
gEfiEndOfPeiSignalPpiGuid
gMmCoreFvLocationPpiGuid
[Protocols]
gEfiMmEndOfPeiProtocol