diff options
Diffstat (limited to 'MdePkg/Library')
| -rw-r--r-- | MdePkg/Library/PeiServicesLib/PeiServicesLib.c | 73 | ||||
| -rw-r--r-- | MdePkg/Library/PeiServicesLib/PeiServicesLib.inf | 11 |
2 files changed, 83 insertions, 1 deletions
diff --git a/MdePkg/Library/PeiServicesLib/PeiServicesLib.c b/MdePkg/Library/PeiServicesLib/PeiServicesLib.c index f3ef83a8a8..599eb2e3e1 100644 --- a/MdePkg/Library/PeiServicesLib/PeiServicesLib.c +++ b/MdePkg/Library/PeiServicesLib/PeiServicesLib.c @@ -15,9 +15,23 @@ #include <PiPei.h>
+#include <Ppi/FirmwareVolumeInfo.h>
+#include <Guid/FirmwareFileSystem2.h>
#include <Library/PeiServicesLib.h>
#include <Library/PeiServicesTablePointerLib.h>
+#include <Library/DebugLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/BaseMemoryLib.h>
+
+
+GLOBAL_REMOVE_IF_UNREFERENCED CONST EFI_PEI_PPI_DESCRIPTOR mPpiListTemplate [] = {
+ {
+ (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
+ &gEfiPeiFirmwareVolumeInfoPpiGuid,
+ NULL
+ }
+};
/**
This service enables a given PEIM to register an interface into the PEI Foundation.
@@ -505,3 +519,62 @@ PeiServicesFfsGetVolumeInfo ( return (*GetPeiServicesTablePointer())->FfsGetVolumeInfo (VolumeHandle, VolumeInfo);
}
+/**
+ Install a EFI_PEI_FIRMWARE_VOLUME_INFO PPI to inform PEI core about the existence of a new Firmware Volume.
+
+ The function allocate the EFI_PEI_PPI_DESCRIPTOR structure and update the fields accordingly to parameter passed
+ in and install the PPI.
+
+ @param FvFormat Unique identifier of the format of the memory-mapped firmware volume.
+ If NULL is specified, EFI_FIRMWARE_FILE_SYSTEM2_GUID is used as the Format GUID.
+ @param FvInfo Points to a buffer which allows the EFI_PEI_FIRMWARE_VOLUME_PPI to
+ process the volume. The format of this buffer is specific to the FvFormat. For
+ memory-mapped firmware volumes, this typically points to the first byte of the
+ firmware volume.
+ @param FvInfoSize Size of the data provided by FvInfo. For memory-mapped firmware volumes, this is
+ typically the size of the firmware volume.
+ @param ParentFvName If the firmware volume originally came from a firmware file, then these point to the
+ parent firmware volume name. If it did not originally come from a firmware file,
+ these should be NULL.
+ @param ParentFileName If the firmware volume originally came from a firmware file, then these point to the
+ firmware volume file. If it did not originally come from a firmware file,
+ these should be NULL.
+
+**/
+VOID
+EFIAPI
+PeiServicesInstallFvInfoPpi (
+ IN CONST EFI_GUID *FvFormat, OPTIONAL
+ IN CONST VOID *FvInfo,
+ IN UINT32 FvInfoSize,
+ IN CONST EFI_GUID *ParentFvName, OPTIONAL
+ IN CONST EFI_GUID *ParentFileName OPTIONAL
+ )
+{
+ EFI_STATUS Status;
+ EFI_PEI_FIRMWARE_VOLUME_INFO_PPI *FvInfoPpi;
+ EFI_PEI_PPI_DESCRIPTOR *FvInfoPpiDescriptor;
+
+ FvInfoPpi = AllocateZeroPool (sizeof (EFI_PEI_FIRMWARE_VOLUME_INFO_PPI));
+ ASSERT( FvInfoPpi != NULL);
+
+ if (FvFormat != NULL) {
+ CopyGuid (&FvInfoPpi->FvFormat, FvFormat);
+ } else {
+ CopyGuid (&FvInfoPpi->FvFormat, &gEfiFirmwareFileSystem2Guid);
+ }
+ FvInfoPpi->FvInfo = (VOID *) FvInfo;
+ FvInfoPpi->FvInfoSize = FvInfoSize;
+ FvInfoPpi->ParentFvName = (EFI_GUID *) ParentFvName;
+ FvInfoPpi->ParentFileName = (EFI_GUID *) ParentFileName;
+
+
+ FvInfoPpiDescriptor = AllocateCopyPool (sizeof(EFI_PEI_PPI_DESCRIPTOR), mPpiListTemplate);
+ ASSERT (FvInfoPpiDescriptor != NULL);
+
+ FvInfoPpiDescriptor->Ppi = (VOID *) FvInfoPpi;
+ Status = PeiServicesInstallPpi (FvInfoPpiDescriptor);
+ ASSERT_EFI_ERROR (Status);
+
+}
+
diff --git a/MdePkg/Library/PeiServicesLib/PeiServicesLib.inf b/MdePkg/Library/PeiServicesLib/PeiServicesLib.inf index fb58f02b1e..5e52286290 100644 --- a/MdePkg/Library/PeiServicesLib/PeiServicesLib.inf +++ b/MdePkg/Library/PeiServicesLib/PeiServicesLib.inf @@ -34,7 +34,16 @@ [Packages]
MdePkg/MdePkg.dec
-
[LibraryClasses]
PeiServicesTablePointerLib
+ MemoryAllocationLib
+ DebugLib
+
+[Guids]
+ gEfiFirmwareFileSystem2Guid
+
+[Ppis]
+ gEfiPeiFirmwareVolumeInfoPpiGuid
+
+
|