mirror of https://github.com/acidanthera/audk.git
133 lines
4.8 KiB
C
133 lines
4.8 KiB
C
/** @file
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SMM Firmware Volume Block Driver for Lakeport Platform.
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Firmware volume block driver for FWH or SPI device.
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It depends on which Flash Device Library to be linked with this driver.
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Copyright (c) 2010 - 2014, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials are licensed and made available under
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the terms and conditions of the BSD License that accompanies this distribution.
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The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php.
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <PiSmm.h>
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#include <Library/SmmServicesTableLib.h>
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#include "FvbSmmCommon.h"
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#include "FvbService.h"
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/**
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The function installs EFI_SMM_FIRMWARE_VOLUME_BLOCK protocol
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for each FV in the system.
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@param[in] FwhInstance The pointer to a FW volume instance structure,
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which contains the information about one FV.
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@param[in] InstanceNum The instance number which can be used as a ID
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to locate this FwhInstance in other functions.
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@retval VOID
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**/
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VOID
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InstallFvbProtocol (
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IN EFI_FW_VOL_INSTANCE *FwhInstance,
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IN UINTN InstanceNum
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)
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{
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EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;
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EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;
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EFI_STATUS Status;
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EFI_HANDLE FvbHandle;
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FvbDevice = (EFI_FW_VOL_BLOCK_DEVICE *) AllocateRuntimeCopyPool (
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sizeof (EFI_FW_VOL_BLOCK_DEVICE),
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&mFvbDeviceTemplate
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);
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ASSERT (FvbDevice != NULL);
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FvbDevice->Instance = InstanceNum;
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FwVolHeader = &FwhInstance->VolumeHeader;
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//
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// Set up the devicepath.
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//
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if (FwVolHeader->ExtHeaderOffset == 0) {
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//
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// FV does not contains extension header, then produce MEMMAP_DEVICE_PATH.
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//
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FvbDevice->DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) AllocateRuntimeCopyPool (sizeof (FV_MEMMAP_DEVICE_PATH), &mFvMemmapDevicePathTemplate);
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((FV_MEMMAP_DEVICE_PATH *) FvbDevice->DevicePath)->MemMapDevPath.StartingAddress = FwhInstance->FvBase;
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((FV_MEMMAP_DEVICE_PATH *) FvbDevice->DevicePath)->MemMapDevPath.EndingAddress = FwhInstance->FvBase + FwVolHeader->FvLength - 1;
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} else {
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FvbDevice->DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) AllocateRuntimeCopyPool (sizeof (FV_PIWG_DEVICE_PATH), &mFvPIWGDevicePathTemplate);
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CopyGuid (
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&((FV_PIWG_DEVICE_PATH *)FvbDevice->DevicePath)->FvDevPath.FvName,
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(GUID *)(UINTN)(FwhInstance->FvBase + FwVolHeader->ExtHeaderOffset)
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);
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}
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//
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// Install the SMM Firmware Volume Block Protocol and Device Path Protocol.
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//
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FvbHandle = NULL;
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Status = gSmst->SmmInstallProtocolInterface (
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&FvbHandle,
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&gEfiSmmFirmwareVolumeBlockProtocolGuid,
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EFI_NATIVE_INTERFACE,
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&FvbDevice->FwVolBlockInstance
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);
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ASSERT_EFI_ERROR (Status);
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Status = gSmst->SmmInstallProtocolInterface (
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&FvbHandle,
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&gEfiDevicePathProtocolGuid,
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EFI_NATIVE_INTERFACE,
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FvbDevice->DevicePath
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);
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ASSERT_EFI_ERROR (Status);
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//
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// Notify the Fvb wrapper driver SMM fvb is ready.
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//
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FvbHandle = NULL;
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Status = gBS->InstallProtocolInterface (
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&FvbHandle,
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&gEfiSmmFirmwareVolumeBlockProtocolGuid,
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EFI_NATIVE_INTERFACE,
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&FvbDevice->FwVolBlockInstance
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);
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}
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/**
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The driver entry point for SMM Firmware Volume Block Driver.
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The function does the necessary initialization work
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Firmware Volume Block Driver.
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@param[in] ImageHandle The firmware allocated handle for the UEFI image.
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@param[in] SystemTable A pointer to the EFI system table.
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@retval EFI_SUCCESS This funtion always return EFI_SUCCESS.
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It will ASSERT on errors.
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**/
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EFI_STATUS
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EFIAPI
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FvbSmmInitialize (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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FvbInitialize ();
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return EFI_SUCCESS;
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}
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