b303605e1b
Changes for V4 ============== 1) Move delete of QuarkSocPkg\QuarkNorthCluster\Binary\QuarkMicrocode from QuarkPlatformPkg commit to QuarkSocPkg commit 2) Fix incorrect license header in PlatformSecLibModStrs.uni Changes for V3 ============== 1) Set PcdResetOnMemoryTypeInformationChange FALSE in QuarkMin.dsc This is required because QuarkMin.dsc uses the emulated variable driver that does not preserve any non-volatile UEFI variables across reset. If the condition is met where the memory type information variable needs to be updated, then the system will reset every time the UEFI Shell is run. By setting this PCD to FALSE, then reset action is disabled. 2) Move one binary file to QuarkSocBinPkg 3) Change RMU.bin FILE statements to INF statement in DSC FD region to be compatible with PACKAGES_PATH search for QuarkSocBinPkg Changes for V2 ============== 1) Use new generic PCI serial driver PciSioSerialDxe in MdeModulePkg 2) Configure PcdPciSerialParameters for PCI serial driver for Quark 3) Use new MtrrLib API to reduce time to set MTRRs for all DRAM 4) Convert all UNI files to utf-8 5) Replace tabs with spaces and remove trailing spaces 6) Add License.txt Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Michael Kinney <michael.d.kinney@intel.com> Acked-by: Jordan Justen <jordan.l.justen@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19287 6f19259b-4bc3-4df7-8a09-765794883524
125 lines
3.8 KiB
C
125 lines
3.8 KiB
C
/** @file
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This is the driver that locates the MemoryConfigurationData HOB, if it
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exists, and saves the data to nvRAM.
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Copyright (c) 2013-2015 Intel Corporation.
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. 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 <Library/DebugLib.h>
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#include <Library/HobLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiRuntimeServicesTableLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/UefiDriverEntryPoint.h>
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#include <Guid/MemoryConfigData.h>
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#include <Guid/DebugMask.h>
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EFI_STATUS
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EFIAPI
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SaveMemoryConfigEntryPoint (
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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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Routine Description:
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This is the standard EFI driver point that detects whether there is a
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MemoryConfigurationData HOB and, if so, saves its data to nvRAM.
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Arguments:
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ImageHandle - Handle for the image of this driver
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SystemTable - Pointer to the EFI System Table
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Returns:
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EFI_SUCCESS - if the data is successfully saved or there was no data
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EFI_NOT_FOUND - if the HOB list could not be located.
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EFI_UNLOAD_IMAGE - It is not success
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--*/
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{
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EFI_STATUS Status;
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VOID *HobList;
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EFI_HOB_GUID_TYPE *GuidHob;
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VOID *HobData;
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VOID *VariableData;
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UINTN DataSize;
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UINTN BufferSize;
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DataSize = 0;
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VariableData = NULL;
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GuidHob = NULL;
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HobList = NULL;
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HobData = NULL;
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Status = EFI_UNSUPPORTED;
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//
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// Get the HOB list. If it is not present, then ASSERT.
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//
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HobList = GetHobList ();
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ASSERT (HobList != NULL);
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//
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// Search for the Memory Configuration GUID HOB. If it is not present, then
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// there's nothing we can do. It may not exist on the update path.
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//
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GuidHob = GetNextGuidHob (&gEfiMemoryConfigDataGuid, HobList);
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if (GuidHob != NULL) {
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HobData = GET_GUID_HOB_DATA (GuidHob);
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DataSize = GET_GUID_HOB_DATA_SIZE (GuidHob);
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//
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// Use the HOB to save Memory Configuration Data
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//
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BufferSize = DataSize;
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VariableData = AllocatePool (BufferSize);
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ASSERT (VariableData != NULL);
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Status = gRT->GetVariable (
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EFI_MEMORY_CONFIG_DATA_NAME,
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&gEfiMemoryConfigDataGuid,
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NULL,
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&BufferSize,
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VariableData
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);
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if (Status == EFI_BUFFER_TOO_SMALL) {
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gBS->FreePool (VariableData);
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VariableData = AllocatePool (BufferSize);
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ASSERT (VariableData != NULL);
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Status = gRT->GetVariable (
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EFI_MEMORY_CONFIG_DATA_NAME,
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&gEfiMemoryConfigDataGuid,
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NULL,
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&BufferSize,
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VariableData
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);
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}
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if (EFI_ERROR(Status) || BufferSize != DataSize || CompareMem (HobData, VariableData, DataSize) != 0) {
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Status = gRT->SetVariable (
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EFI_MEMORY_CONFIG_DATA_NAME,
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&gEfiMemoryConfigDataGuid,
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(EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS),
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DataSize,
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HobData
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);
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ASSERT((Status == EFI_SUCCESS) || (Status == EFI_OUT_OF_RESOURCES));
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}
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gBS->FreePool (VariableData);
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}
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//
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// This driver does not produce any protocol services, so always unload it.
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//
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return Status;
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}
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