diff options
Diffstat (limited to 'BraswellPlatformPkg/Common/Flash/FvbRuntimeDxe/FvbServiceSmm.c')
| -rw-r--r-- | BraswellPlatformPkg/Common/Flash/FvbRuntimeDxe/FvbServiceSmm.c | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/BraswellPlatformPkg/Common/Flash/FvbRuntimeDxe/FvbServiceSmm.c b/BraswellPlatformPkg/Common/Flash/FvbRuntimeDxe/FvbServiceSmm.c new file mode 100644 index 0000000000..ffe101e08e --- /dev/null +++ b/BraswellPlatformPkg/Common/Flash/FvbRuntimeDxe/FvbServiceSmm.c @@ -0,0 +1,263 @@ +/** @file
+ SMM Firmware Volume Block Driver for the Tunnel Creek Platform.
+
+ Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+
+ This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php.
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <PiSmm.h>
+#include <Protocol/SmmSpiDevice.h>
+#include <Library/SmmServicesTableLib.h>
+#include "FvbSmmCommon.h"
+#include "FvbService.h"
+
+/**
+ Communication service SMI Handler entry.
+
+ This SMI handler provides communication services with the SMM FVB runtime driver.
+
+ @param[in] DispatchHandle The unique handle assigned to this handler by SmiHandlerRegister().
+ @param[in] RegisterContext Points to an optional handler context which was specified when the
+ handler was registered.
+ @param[in, out] CommBuffer A pointer to a collection of data in memory that will
+ be conveyed from a non-SMM environment into an SMM environment.
+ @param[in, out] CommBufferSize The size of the CommBuffer.
+
+ @retval EFI_SUCCESS The interrupt was handled successfully.
+ @retval EFI_UNSUPPORTED The request was not supported by the handler.
+
+**/
+EFI_STATUS
+EFIAPI
+FvbSmmHandler (
+ IN EFI_HANDLE DispatchHandle,
+ IN CONST VOID *RegisterContext,
+ IN OUT VOID *CommBuffer,
+ IN OUT UINTN *CommBufferSize
+ )
+{
+ EFI_STATUS Status;
+ SMM_FVB_COMMUNICATE_FUNCTION_HEADER *SmmFvbFunctionHeader;
+ SMM_FVB_ATTRIBUTES_HEADER *SmmFvbAttributesHeader;
+ SMM_FVB_PHYSICAL_ADDRESS_HEADER *SmmFvbPhysicalAddressHeader;
+ SMM_FVB_BLOCK_SIZE_HEADER *SmmFvbBlockSizeHeader;
+ SMM_FVB_READ_WRITE_HEADER *SmmFvbReadWriteHeader;
+ SMM_FVB_BLOCKS_HEADER *SmmFvbBlocksHeader;
+
+ ASSERT (CommBuffer != NULL);
+
+ //
+ // Determine the function that is being requested and execute it.
+ //
+ SmmFvbFunctionHeader = (SMM_FVB_COMMUNICATE_FUNCTION_HEADER *) CommBuffer;
+ switch (SmmFvbFunctionHeader->Function) {
+ case EFI_FUNCTION_GET_ATTRIBUTES:
+ SmmFvbAttributesHeader = (SMM_FVB_ATTRIBUTES_HEADER *) SmmFvbFunctionHeader->Data;
+ Status = FvbProtocolGetAttributes (
+ SmmFvbAttributesHeader->SmmFvb,
+ &SmmFvbAttributesHeader->Attributes
+ );
+ break;
+ case EFI_FUNCTION_SET_ATTRIBUTES:
+ SmmFvbAttributesHeader = (SMM_FVB_ATTRIBUTES_HEADER *) SmmFvbFunctionHeader->Data;
+ Status = FvbProtocolSetAttributes (
+ SmmFvbAttributesHeader->SmmFvb,
+ &SmmFvbAttributesHeader->Attributes
+ );
+ break;
+ case EFI_FUNCTION_GET_PHYSICAL_ADDRESS:
+ SmmFvbPhysicalAddressHeader = (SMM_FVB_PHYSICAL_ADDRESS_HEADER *) SmmFvbFunctionHeader->Data;
+ Status = FvbProtocolGetPhysicalAddress (
+ SmmFvbPhysicalAddressHeader->SmmFvb,
+ &SmmFvbPhysicalAddressHeader->Address
+ );
+ break;
+ case EFI_FUNCTION_GET_BLOCK_SIZE:
+ SmmFvbBlockSizeHeader = (SMM_FVB_BLOCK_SIZE_HEADER *) SmmFvbFunctionHeader->Data;
+ Status = FvbProtocolGetBlockSize (
+ SmmFvbBlockSizeHeader->SmmFvb,
+ SmmFvbBlockSizeHeader->Lba,
+ &SmmFvbBlockSizeHeader->BlockSize,
+ &SmmFvbBlockSizeHeader->NumOfBlocks
+ );
+ break;
+ case EFI_FUNCTION_READ:
+ SmmFvbReadWriteHeader = (SMM_FVB_READ_WRITE_HEADER *) SmmFvbFunctionHeader->Data;
+ Status = FvbProtocolRead (
+ SmmFvbReadWriteHeader->SmmFvb,
+ SmmFvbReadWriteHeader->Lba,
+ SmmFvbReadWriteHeader->Offset,
+ &SmmFvbReadWriteHeader->NumBytes,
+ (UINT8 *) (SmmFvbReadWriteHeader + 1)
+ );
+ break;
+ case EFI_FUNCTION_WRITE:
+ SmmFvbReadWriteHeader = (SMM_FVB_READ_WRITE_HEADER *) SmmFvbFunctionHeader->Data;
+ Status = FvbProtocolWrite (
+ SmmFvbReadWriteHeader->SmmFvb,
+ SmmFvbReadWriteHeader->Lba,
+ SmmFvbReadWriteHeader->Offset,
+ &SmmFvbReadWriteHeader->NumBytes,
+ (UINT8 *) (SmmFvbReadWriteHeader + 1)
+ );
+ break;
+ case EFI_FUNCTION_ERASE_BLOCKS:
+ SmmFvbBlocksHeader = (SMM_FVB_BLOCKS_HEADER *) SmmFvbFunctionHeader->Data;
+ Status = FvbProtocolEraseBlocks (
+ SmmFvbBlocksHeader->SmmFvb,
+ SmmFvbBlocksHeader->StartLba,
+ SmmFvbBlocksHeader->NumOfLba,
+ EFI_LBA_LIST_TERMINATOR,
+ 0
+ );
+ break;
+ default:
+ ASSERT (FALSE);
+ Status = EFI_UNSUPPORTED;
+ }
+
+ //
+ // Set the return value.
+ //
+ SmmFvbFunctionHeader->ReturnStatus = Status;
+
+ return EFI_SUCCESS;
+}
+
+/**
+ The function installs EFI_SMM_FIRMWARE_VOLUME_BLOCK protocol
+ for each FV in the system.
+
+ @param[in] FwhInstance The pointer to a FW volume instance structure,
+ which contains the information about one FV.
+ @param[in] InstanceNum The instance number which can be used as a ID
+ to locate this FwhInstance in other functions.
+
+ @retval VOID
+
+**/
+VOID
+InstallFvbProtocol (
+ IN EFI_FW_VOL_INSTANCE *FwhInstance,
+ IN UINTN InstanceNum
+ )
+{
+ EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;
+ EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;
+ EFI_STATUS Status;
+ EFI_HANDLE FvbHandle;
+
+ FvbDevice = (EFI_FW_VOL_BLOCK_DEVICE *) AllocateRuntimeCopyPool (
+ sizeof (EFI_FW_VOL_BLOCK_DEVICE),
+ &mFvbDeviceTemplate
+ );
+ ASSERT (FvbDevice != NULL);
+
+ FvbDevice->Instance = InstanceNum;
+ FwVolHeader = &FwhInstance->VolumeHeader;
+
+ //
+ // Set up the devicepath
+ //
+ if (FwVolHeader->ExtHeaderOffset == 0) {
+ //
+ // FV does not contains extension header, then produce MEMMAP_DEVICE_PATH
+ //
+ FvbDevice->DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) AllocateRuntimeCopyPool (sizeof (FV_MEMMAP_DEVICE_PATH), &mFvMemmapDevicePathTemplate);
+ ((FV_MEMMAP_DEVICE_PATH *) FvbDevice->DevicePath)->MemMapDevPath.StartingAddress = FwhInstance->FvBase;
+ ((FV_MEMMAP_DEVICE_PATH *) FvbDevice->DevicePath)->MemMapDevPath.EndingAddress = FwhInstance->FvBase + FwVolHeader->FvLength - 1;
+ } else {
+ FvbDevice->DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) AllocateRuntimeCopyPool (sizeof (FV_PIWG_DEVICE_PATH), &mFvPIWGDevicePathTemplate);
+ CopyGuid (
+ &((FV_PIWG_DEVICE_PATH *)FvbDevice->DevicePath)->FvDevPath.FvName,
+ (GUID *)(UINTN)(FwhInstance->FvBase + FwVolHeader->ExtHeaderOffset)
+ );
+ }
+
+ //
+ // Install the SMM Firmware Volume Block Protocol and Device Path Protocol
+ //
+ FvbHandle = NULL;
+ Status = gSmst->SmmInstallProtocolInterface (
+ &FvbHandle,
+ &gEfiSmmFirmwareVolumeBlockProtocolGuid,
+ EFI_NATIVE_INTERFACE,
+ &FvbDevice->FwVolBlockInstance
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ Status = gSmst->SmmInstallProtocolInterface (
+ &FvbHandle,
+ &gEfiDevicePathProtocolGuid,
+ EFI_NATIVE_INTERFACE,
+ FvbDevice->DevicePath
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Notify the Fvb wrapper driver SMM fvb is ready
+ //
+ FvbHandle = NULL;
+ Status = gBS->InstallProtocolInterface (
+ &FvbHandle,
+ &gEfiSmmFirmwareVolumeBlockProtocolGuid,
+ EFI_NATIVE_INTERFACE,
+ &FvbDevice->FwVolBlockInstance
+ );
+}
+
+/**
+ The driver entry point for SMM Firmware Volume Block Driver.
+
+ The function does the necessary initialization work
+ Firmware Volume Block Driver.
+
+ @param[in] ImageHandle The firmware allocated handle for the UEFI image.
+ @param[in] SystemTable A pointer to the EFI system table.
+
+ @retval EFI_SUCCESS This funtion always return EFI_SUCCESS.
+ It will ASSERT on errors.
+
+**/
+EFI_STATUS
+EFIAPI
+FvbSmmInitialize (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+ EFI_HANDLE FvbHandle;
+
+ //
+ // Locate required protocol for access to flash.
+ //
+ Status = gSmst->SmmLocateProtocol (
+ &gSmmSpiDeviceProtocolGuid,
+ NULL,
+ (VOID **) &mSpiDeviceProtocol
+ );
+ ASSERT_EFI_ERROR(Status);
+
+ //
+ // Initialize the rest of the module.
+ //
+ FvbInitialize ();
+
+ //
+ // Register SMM variable SMI handler
+ //
+ Status = gSmst->SmiHandlerRegister (FvbSmmHandler, &gEfiSmmFirmwareVolumeBlockProtocolGuid, &FvbHandle);
+ ASSERT_EFI_ERROR (Status);
+
+ return EFI_SUCCESS;
+}
+
|