+++ /dev/null
-/** @file\r
-Implementation of helper routines for DXE environment.\r
-\r
-Copyright (c) 2013 - 2016 Intel Corporation.\r
-\r
-SPDX-License-Identifier: BSD-2-Clause-Patent\r
-\r
-**/\r
-\r
-#include <PiDxe.h>\r
-\r
-#include <Library/UefiBootServicesTableLib.h>\r
-#include <Library/S3BootScriptLib.h>\r
-#include <Library/DxeServicesLib.h>\r
-#include <Library/UefiRuntimeServicesTableLib.h>\r
-#include <Protocol/SmmBase2.h>\r
-#include <Protocol/Spi.h>\r
-#include <Protocol/VariableLock.h>\r
-\r
-#include <Guid/MemoryConfigData.h>\r
-#include <Guid/QuarkVariableLock.h>\r
-\r
-#include "CommonHeader.h"\r
-\r
-#define FLASH_BLOCK_SIZE SIZE_4KB\r
-\r
-//\r
-// Global variables.\r
-//\r
-EFI_SPI_PROTOCOL *mPlatHelpSpiProtocolRef = NULL;\r
-\r
-//\r
-// Routines defined in other source modules of this component.\r
-//\r
-\r
-//\r
-// Routines local to this component.\r
-//\r
-\r
-//\r
-// Routines shared with other souce modules in this component.\r
-//\r
-\r
-EFI_SPI_PROTOCOL *\r
-LocateSpiProtocol (\r
- IN EFI_SMM_SYSTEM_TABLE2 *Smst\r
- )\r
-{\r
- if (mPlatHelpSpiProtocolRef == NULL) {\r
- if (Smst != NULL) {\r
- Smst->SmmLocateProtocol (\r
- &gEfiSmmSpiProtocolGuid,\r
- NULL,\r
- (VOID **) &mPlatHelpSpiProtocolRef\r
- );\r
- } else {\r
- gBS->LocateProtocol (\r
- &gEfiSpiProtocolGuid,\r
- NULL,\r
- (VOID **) &mPlatHelpSpiProtocolRef\r
- );\r
- }\r
- ASSERT (mPlatHelpSpiProtocolRef != NULL);\r
- }\r
- return mPlatHelpSpiProtocolRef;\r
-}\r
-\r
-//\r
-// Routines exported by this source module.\r
-//\r
-\r
-/**\r
- Find pointer to RAW data in Firmware volume file.\r
-\r
- @param FvNameGuid Firmware volume to search. If == NULL search all.\r
- @param FileNameGuid Firmware volume file to search for.\r
- @param SectionData Pointer to RAW data section of found file.\r
- @param SectionDataSize Pointer to UNITN to get size of RAW data.\r
-\r
- @retval EFI_SUCCESS Raw Data found.\r
- @retval EFI_INVALID_PARAMETER FileNameGuid == NULL.\r
- @retval EFI_NOT_FOUND Firmware volume file not found.\r
- @retval EFI_UNSUPPORTED Unsupported in current enviroment (PEI or DXE).\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-PlatformFindFvFileRawDataSection (\r
- IN CONST EFI_GUID *FvNameGuid OPTIONAL,\r
- IN CONST EFI_GUID *FileNameGuid,\r
- OUT VOID **SectionData,\r
- OUT UINTN *SectionDataSize\r
- )\r
-{\r
- if (FileNameGuid == NULL || SectionData == NULL || SectionDataSize == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- if (FvNameGuid != NULL) {\r
- return EFI_UNSUPPORTED; // Searching in specific FV unsupported in DXE.\r
- }\r
-\r
- return GetSectionFromAnyFv (FileNameGuid, EFI_SECTION_RAW, 0, SectionData, SectionDataSize);\r
-}\r
-\r
-/**\r
- Find free spi protect register and write to it to protect a flash region.\r
-\r
- @param DirectValue Value to directly write to register.\r
- if DirectValue == 0 the use Base & Length below.\r
- @param BaseAddress Base address of region in Flash Memory Map.\r
- @param Length Length of region to protect.\r
-\r
- @retval EFI_SUCCESS Free spi protect register found & written.\r
- @retval EFI_NOT_FOUND Free Spi protect register not found.\r
- @retval EFI_DEVICE_ERROR Unable to write to spi protect register.\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-PlatformWriteFirstFreeSpiProtect (\r
- IN CONST UINT32 DirectValue,\r
- IN CONST UINT32 BaseAddress,\r
- IN CONST UINT32 Length\r
- )\r
-{\r
- UINT32 FreeOffset;\r
- UINT32 PchRootComplexBar;\r
- EFI_STATUS Status;\r
-\r
- PchRootComplexBar = QNC_RCRB_BASE;\r
-\r
- Status = WriteFirstFreeSpiProtect (\r
- PchRootComplexBar,\r
- DirectValue,\r
- BaseAddress,\r
- Length,\r
- &FreeOffset\r
- );\r
-\r
- if (!EFI_ERROR (Status)) {\r
- S3BootScriptSaveMemWrite (\r
- S3BootScriptWidthUint32,\r
- (UINTN) (PchRootComplexBar + FreeOffset),\r
- 1,\r
- (VOID *) (UINTN) (PchRootComplexBar + FreeOffset)\r
- );\r
- }\r
-\r
- return Status;\r
-}\r
-\r
-/**\r
- Lock legacy SPI static configuration information.\r
-\r
- Function will assert if unable to lock config.\r
-\r
-**/\r
-VOID\r
-EFIAPI\r
-PlatformFlashLockConfig (\r
- VOID\r
- )\r
-{\r
- EFI_STATUS Status;\r
- EFI_SPI_PROTOCOL *SpiProtocol;\r
-\r
- //\r
- // Enable lock of legacy SPI static configuration information.\r
- //\r
-\r
- SpiProtocol = LocateSpiProtocol (NULL); // This routine will not be called in SMM.\r
- ASSERT (SpiProtocol != NULL);\r
- if (SpiProtocol != NULL) {\r
- Status = SpiProtocol->Lock (SpiProtocol);\r
-\r
- if (!EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_INFO, "Platform: Spi Config Locked Down\n"));\r
- } else if (Status == EFI_ACCESS_DENIED) {\r
- DEBUG ((EFI_D_INFO, "Platform: Spi Config already locked down\n"));\r
- } else {\r
- ASSERT_EFI_ERROR (Status);\r
- }\r
- }\r
-}\r
-\r
-/**\r
- Platform Variable Lock.\r
-\r
- @retval EFI_SUCCESS Platform Variable Lock successful.\r
- @retval EFI_NOT_FOUND No protocol instances were found that match Protocol and\r
- Registration.\r
-\r
-**/\r
-VOID\r
-EFIAPI\r
-PlatformVariableLock (\r
- )\r
-{\r
- EFI_STATUS Status;\r
- EDKII_VARIABLE_LOCK_PROTOCOL *VariableLockProtocol;\r
-\r
- Status = gBS->LocateProtocol (&gEdkiiVariableLockProtocolGuid, NULL, (VOID **)&VariableLockProtocol);\r
- ASSERT_EFI_ERROR (Status);\r
-\r
- Status = VariableLockProtocol->RequestToLock (\r
- VariableLockProtocol,\r
- QUARK_VARIABLE_LOCK_NAME,\r
- &gQuarkVariableLockGuid\r
- );\r
- ASSERT_EFI_ERROR (Status);\r
-\r
- // Memory Config Data shouldn't be writable when Quark Variable Lock is enabled.\r
- Status = VariableLockProtocol->RequestToLock (\r
- VariableLockProtocol,\r
- EFI_MEMORY_CONFIG_DATA_NAME,\r
- &gEfiMemoryConfigDataGuid\r
- );\r
- ASSERT_EFI_ERROR (Status);\r
-}\r
-\r
-/**\r
- Lock regions and config of SPI flash given the policy for this platform.\r
-\r
- Function will assert if unable to lock regions or config.\r
-\r
- @param PreBootPolicy If TRUE do Pre Boot Flash Lock Policy.\r
-\r
-**/\r
-VOID\r
-EFIAPI\r
-PlatformFlashLockPolicy (\r
- IN CONST BOOLEAN PreBootPolicy\r
- )\r
-{\r
- EFI_STATUS Status;\r
- UINT64 CpuAddressNvStorage;\r
- UINT64 CpuAddressFlashDevice;\r
- UINT64 SpiAddress;\r
- EFI_BOOT_MODE BootMode;\r
- UINTN SpiFlashDeviceSize;\r
-\r
- BootMode = GetBootModeHob ();\r
-\r
- SpiFlashDeviceSize = (UINTN) PcdGet32 (PcdSpiFlashDeviceSize);\r
- CpuAddressFlashDevice = SIZE_4GB - SpiFlashDeviceSize;\r
- DEBUG (\r
- (EFI_D_INFO,\r
- "Platform:FlashDeviceSize = 0x%08x Bytes\n",\r
- SpiFlashDeviceSize)\r
- );\r
-\r
- //\r
- // If not in update or recovery mode, lock stuff down\r
- //\r
- if ((BootMode != BOOT_IN_RECOVERY_MODE) && (BootMode != BOOT_ON_FLASH_UPDATE)) {\r
-\r
- //\r
- // Lock regions\r
- //\r
- CpuAddressNvStorage = (UINT64) PcdGet32 (PcdFlashNvStorageVariableBase);\r
-\r
- //\r
- // Lock from start of flash device up to Smi writable flash storage areas.\r
- //\r
- SpiAddress = 0;\r
- if (!PlatformIsSpiRangeProtected ((UINT32) SpiAddress, (UINT32) (CpuAddressNvStorage - CpuAddressFlashDevice))) {\r
- DEBUG (\r
- (EFI_D_INFO,\r
- "Platform: Protect Region Base:Len 0x%08x:0x%08x\n",\r
- (UINTN) SpiAddress, (UINTN)(CpuAddressNvStorage - CpuAddressFlashDevice))\r
- );\r
- Status = PlatformWriteFirstFreeSpiProtect (\r
- 0,\r
- (UINT32) SpiAddress,\r
- (UINT32) (CpuAddressNvStorage - CpuAddressFlashDevice)\r
- );\r
-\r
- ASSERT_EFI_ERROR (Status);\r
- }\r
- //\r
- // Move Spi Address to after Smi writable flash storage areas.\r
- //\r
- SpiAddress = CpuAddressNvStorage - CpuAddressFlashDevice;\r
- SpiAddress += ((UINT64) PcdGet32 (PcdFlashNvStorageVariableSize));\r
-\r
- //\r
- // Lock from end of OEM area to end of flash part.\r
- //\r
- if (!PlatformIsSpiRangeProtected ((UINT32) SpiAddress, SpiFlashDeviceSize - ((UINT32) SpiAddress))) {\r
- DEBUG (\r
- (EFI_D_INFO,\r
- "Platform: Protect Region Base:Len 0x%08x:0x%08x\n",\r
- (UINTN) SpiAddress,\r
- (UINTN) (SpiFlashDeviceSize - ((UINT32) SpiAddress)))\r
- );\r
- ASSERT (SpiAddress < ((UINT64) SpiFlashDeviceSize));\r
- Status = PlatformWriteFirstFreeSpiProtect (\r
- 0,\r
- (UINT32) SpiAddress,\r
- SpiFlashDeviceSize - ((UINT32) SpiAddress)\r
- );\r
-\r
- ASSERT_EFI_ERROR (Status);\r
- }\r
- }\r
-\r
- //\r
- // Always Lock flash config registers if about to boot a boot option\r
- // else lock depending on boot mode.\r
- //\r
- if (PreBootPolicy || (BootMode != BOOT_ON_FLASH_UPDATE)) {\r
- PlatformFlashLockConfig ();\r
- }\r
-\r
- //\r
- // Enable Quark Variable lock if PreBootPolicy.\r
- //\r
- if (PreBootPolicy) {\r
- PlatformVariableLock ();\r
- }\r
-}\r
-\r
-/** Check if System booted with recovery Boot Stage1 image.\r
-\r
- @retval TRUE If system booted with recovery Boot Stage1 image.\r
- @retval FALSE If system booted with normal stage1 image.\r
-\r
-**/\r
-BOOLEAN\r
-EFIAPI\r
-PlatformIsBootWithRecoveryStage1 (\r
- VOID\r
- )\r
-{\r
- ASSERT_EFI_ERROR (EFI_UNSUPPORTED);\r
- return FALSE;\r
-}\r
-\r
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