/** @file
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Boot service PEI BIOS ID library implementation.
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Copyright (c) 2-015 - 2019, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <PiPei.h>
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#include <Library/BaseLib.h>
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#include <Library/PeiServicesLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/HobLib.h>
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#include <Library/DebugLib.h>
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#include <Library/BiosIdLib.h>
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#include <Guid/BiosId.h>
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/**
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This function returns BIOS ID by searching HOB or FV.
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It also debug print the BIOS ID found.
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@param[out] BiosIdImage The BIOS ID got from HOB or FV. It is optional,
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no BIOS ID will be returned if it is NULL as input.
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@retval EFI_SUCCESS BIOS ID has been got successfully.
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@retval EFI_NOT_FOUND BIOS ID image is not found, and no parameter will be modified.
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**/
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EFI_STATUS
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EFIAPI
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GetBiosId (
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OUT BIOS_ID_IMAGE *BiosIdImage OPTIONAL
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)
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{
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EFI_STATUS Status;
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BIOS_ID_IMAGE TempBiosIdImage;
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VOID *Address;
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UINTN Size;
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UINTN Instance;
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EFI_PEI_FV_HANDLE VolumeHandle;
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EFI_PEI_FILE_HANDLE FileHandle;
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Address = NULL;
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Size = 0;
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if (BiosIdImage == NULL) {
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//
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// It is NULL as input, so no BIOS ID will be returned.
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// Use temp buffer to hold the BIOS ID.
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//
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BiosIdImage = &TempBiosIdImage;
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}
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Address = GetFirstGuidHob (&gBiosIdGuid);
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if (Address != NULL) {
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Size = sizeof (BIOS_ID_IMAGE);
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CopyMem ((VOID *) BiosIdImage, GET_GUID_HOB_DATA (Address), Size);
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DEBUG ((EFI_D_INFO, "PEI get BIOS ID from HOB successfully\n"));
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DEBUG ((EFI_D_INFO, "BIOS ID: %s\n", (CHAR16 *) (&(BiosIdImage->BiosIdString))));
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return EFI_SUCCESS;
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}
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VolumeHandle = NULL;
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Instance = 0;
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while (TRUE) {
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//
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// Traverse all firmware volume instances.
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//
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Status = PeiServicesFfsFindNextVolume (Instance, &VolumeHandle);
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if (EFI_ERROR (Status)) {
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break;
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}
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FileHandle = NULL;
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Status = PeiServicesFfsFindFileByName (&gBiosIdGuid, VolumeHandle, &FileHandle);
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if (!EFI_ERROR (Status)) {
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//
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// Search RAW section.
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//
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Status = PeiServicesFfsFindSectionData (EFI_SECTION_RAW, FileHandle, &Address);
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if (!EFI_ERROR (Status)) {
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//
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// BIOS ID image is present in this FV.
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//
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Size = sizeof (BIOS_ID_IMAGE);
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CopyMem ((VOID *) BiosIdImage, Address, Size);
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DEBUG ((EFI_D_INFO, "PEI get BIOS ID from FV successfully\n"));
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DEBUG ((EFI_D_INFO, "BIOS ID: %s\n", (CHAR16 *) (&(BiosIdImage->BiosIdString))));
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//
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// Build GUID HOB for the BIOS ID image.
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//
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BuildGuidDataHob (&gBiosIdGuid, Address, Size);
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return EFI_SUCCESS;
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}
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}
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//
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// Search the next volume.
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//
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Instance++;
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}
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DEBUG ((EFI_D_ERROR, "PEI get BIOS ID failed: %r\n", EFI_NOT_FOUND));
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return EFI_NOT_FOUND;
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}
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/**
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This function returns the BIOS Version & Release Date and Time by getting and converting BIOS ID.
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@param[out] BiosVersion The Bios Version out of the conversion.
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@param[out] BiosReleaseDate The Bios Release Date out of the conversion.
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@param[out] BiosReleaseTime The Bios Release Time out of the conversion.
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@retval EFI_SUCCESS BIOS Version & Release Date and Time have been got successfully.
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@retval EFI_NOT_FOUND BIOS ID image is not found, and no parameter will be modified.
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@retval EFI_INVALID_PARAMETER All the parameters are NULL.
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**/
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EFI_STATUS
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EFIAPI
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GetBiosVersionDateTime (
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OUT CHAR16 *BiosVersion, OPTIONAL
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OUT CHAR16 *BiosReleaseDate, OPTIONAL
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OUT CHAR16 *BiosReleaseTime OPTIONAL
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)
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{
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EFI_STATUS Status;
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BIOS_ID_IMAGE BiosIdImage;
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if ((BiosVersion == NULL) && (BiosReleaseDate == NULL) && (BiosReleaseTime == NULL)) {
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return EFI_INVALID_PARAMETER;
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}
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Status = GetBiosId (&BiosIdImage);
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if (EFI_ERROR (Status)) {
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return EFI_NOT_FOUND;
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}
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if (BiosVersion != NULL) {
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//
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// Fill the BiosVersion data from the BIOS ID.
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//
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CopyMem (BiosVersion, &(BiosIdImage.BiosIdString), sizeof (BIOS_ID_STRING));
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}
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if (BiosReleaseDate != NULL) {
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//
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// Fill the build timestamp date from the BIOS ID in the "MM/DD/YY" format.
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//
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BiosReleaseDate[0] = BiosIdImage.BiosIdString.TimeStamp[2];
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BiosReleaseDate[1] = BiosIdImage.BiosIdString.TimeStamp[3];
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BiosReleaseDate[2] = (CHAR16) ((UINT8) ('/'));
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BiosReleaseDate[3] = BiosIdImage.BiosIdString.TimeStamp[4];
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BiosReleaseDate[4] = BiosIdImage.BiosIdString.TimeStamp[5];
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BiosReleaseDate[5] = (CHAR16) ((UINT8) ('/'));
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//
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// Add 20 for SMBIOS table
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// Current Linux kernel will misjudge 09 as year 0, so using 2009 for SMBIOS table
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//
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BiosReleaseDate[6] = '2';
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BiosReleaseDate[7] = '0';
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BiosReleaseDate[8] = BiosIdImage.BiosIdString.TimeStamp[0];
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BiosReleaseDate[9] = BiosIdImage.BiosIdString.TimeStamp[1];
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BiosReleaseDate[10] = (CHAR16) ((UINT8) ('\0'));
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}
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if (BiosReleaseTime != NULL) {
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//
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// Fill the build timestamp time from the BIOS ID in the "HH:MM" format.
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//
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BiosReleaseTime[0] = BiosIdImage.BiosIdString.TimeStamp[6];
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BiosReleaseTime[1] = BiosIdImage.BiosIdString.TimeStamp[7];
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BiosReleaseTime[2] = (CHAR16) ((UINT8) (':'));
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BiosReleaseTime[3] = BiosIdImage.BiosIdString.TimeStamp[8];
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BiosReleaseTime[4] = BiosIdImage.BiosIdString.TimeStamp[9];
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BiosReleaseTime[5] = (CHAR16) ((UINT8) ('\0'));
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}
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return EFI_SUCCESS;
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}
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