mirror of https://github.com/acidanthera/audk.git
724 lines
25 KiB
C
724 lines
25 KiB
C
/** @file
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Source file for CD recovery PEIM
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Copyright (c) 2006 - 2018, 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 "PeiCdExpress.h"
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PEI_CD_EXPRESS_PRIVATE_DATA *mPrivateData = NULL;
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CHAR8 *mRecoveryFileName;
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UINTN mRecoveryFileNameSize;
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/**
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Installs the Device Recovery Module PPI, Initialize BlockIo Ppi
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installation notification
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@param FileHandle The file handle of the image.
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@param PeiServices General purpose services available to every PEIM.
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@retval EFI_SUCCESS The function completed successfully.
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@retval EFI_OUT_OF_RESOURCES There is not enough system memory.
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**/
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EFI_STATUS
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EFIAPI
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CdExpressPeimEntry (
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IN EFI_PEI_FILE_HANDLE FileHandle,
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IN CONST EFI_PEI_SERVICES **PeiServices
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)
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{
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EFI_STATUS Status;
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PEI_CD_EXPRESS_PRIVATE_DATA *PrivateData;
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if (!EFI_ERROR (PeiServicesRegisterForShadow (FileHandle))) {
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return EFI_SUCCESS;
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}
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PrivateData = AllocatePages (EFI_SIZE_TO_PAGES (sizeof (*PrivateData)));
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if (PrivateData == NULL) {
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return EFI_OUT_OF_RESOURCES;
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}
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mRecoveryFileNameSize = PcdGetSize(PcdRecoveryFileName) / sizeof(CHAR16);
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mRecoveryFileName = AllocatePool(mRecoveryFileNameSize);
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if (mRecoveryFileName == NULL) {
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return EFI_OUT_OF_RESOURCES;
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}
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Status = UnicodeStrToAsciiStrS(PcdGetPtr(PcdRecoveryFileName), mRecoveryFileName, mRecoveryFileNameSize);
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if (EFI_ERROR(Status)) {
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return Status;
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}
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//
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// Initialize Private Data (to zero, as is required by subsequent operations)
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//
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ZeroMem (PrivateData, sizeof (*PrivateData));
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PrivateData->Signature = PEI_CD_EXPRESS_PRIVATE_DATA_SIGNATURE;
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PrivateData->BlockBuffer = AllocatePages (EFI_SIZE_TO_PAGES (PEI_CD_BLOCK_SIZE));
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if (PrivateData->BlockBuffer == NULL) {
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return EFI_OUT_OF_RESOURCES;
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}
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PrivateData->CapsuleCount = 0;
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Status = UpdateBlocksAndVolumes (PrivateData, TRUE);
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Status = UpdateBlocksAndVolumes (PrivateData, FALSE);
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//
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// Installs Ppi
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//
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PrivateData->DeviceRecoveryPpi.GetNumberRecoveryCapsules = GetNumberRecoveryCapsules;
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PrivateData->DeviceRecoveryPpi.GetRecoveryCapsuleInfo = GetRecoveryCapsuleInfo;
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PrivateData->DeviceRecoveryPpi.LoadRecoveryCapsule = LoadRecoveryCapsule;
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PrivateData->PpiDescriptor.Flags = (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST);
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PrivateData->PpiDescriptor.Guid = &gEfiPeiDeviceRecoveryModulePpiGuid;
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PrivateData->PpiDescriptor.Ppi = &PrivateData->DeviceRecoveryPpi;
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Status = PeiServicesInstallPpi (&PrivateData->PpiDescriptor);
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if (EFI_ERROR (Status)) {
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return EFI_OUT_OF_RESOURCES;
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}
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//
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// PrivateData is allocated now, set it to the module variable
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//
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mPrivateData = PrivateData;
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//
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// Installs Block Io Ppi notification function
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//
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PrivateData->NotifyDescriptor.Flags =
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(
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EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK
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);
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PrivateData->NotifyDescriptor.Guid = &gEfiPeiVirtualBlockIoPpiGuid;
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PrivateData->NotifyDescriptor.Notify = BlockIoNotifyEntry;
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PrivateData->NotifyDescriptor2.Flags =
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(
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EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK |
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EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST
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);
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PrivateData->NotifyDescriptor2.Guid = &gEfiPeiVirtualBlockIo2PpiGuid;
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PrivateData->NotifyDescriptor2.Notify = BlockIoNotifyEntry;
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return PeiServicesNotifyPpi (&PrivateData->NotifyDescriptor);
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}
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/**
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BlockIo installation notification function.
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This function finds out all the current Block IO PPIs in the system and add them
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into private data.
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@param PeiServices Indirect reference to the PEI Services Table.
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@param NotifyDescriptor Address of the notification descriptor data structure.
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@param Ppi Address of the PPI that was installed.
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@retval EFI_SUCCESS The function completes successfully.
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**/
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EFI_STATUS
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EFIAPI
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BlockIoNotifyEntry (
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IN EFI_PEI_SERVICES **PeiServices,
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IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
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IN VOID *Ppi
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)
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{
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if (CompareGuid (NotifyDescriptor->Guid, &gEfiPeiVirtualBlockIo2PpiGuid)) {
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UpdateBlocksAndVolumes (mPrivateData, TRUE);
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} else {
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UpdateBlocksAndVolumes (mPrivateData, FALSE);
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}
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return EFI_SUCCESS;
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}
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/**
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Finds out all the current Block IO PPIs in the system and add them into private data.
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@param PrivateData The private data structure that contains recovery module information.
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@param BlockIo2 Boolean to show whether using BlockIo2 or BlockIo.
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@retval EFI_SUCCESS The blocks and volumes are updated successfully.
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**/
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EFI_STATUS
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UpdateBlocksAndVolumes (
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IN OUT PEI_CD_EXPRESS_PRIVATE_DATA *PrivateData,
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IN BOOLEAN BlockIo2
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)
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{
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EFI_STATUS Status;
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EFI_PEI_PPI_DESCRIPTOR *TempPpiDescriptor;
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UINTN BlockIoPpiInstance;
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EFI_PEI_RECOVERY_BLOCK_IO_PPI *BlockIoPpi;
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EFI_PEI_RECOVERY_BLOCK_IO2_PPI *BlockIo2Ppi;
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UINTN NumberBlockDevices;
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UINTN IndexBlockDevice;
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EFI_PEI_BLOCK_IO_MEDIA Media;
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EFI_PEI_BLOCK_IO2_MEDIA Media2;
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EFI_PEI_SERVICES **PeiServices;
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IndexBlockDevice = 0;
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BlockIo2Ppi = NULL;
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BlockIoPpi = NULL;
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//
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// Find out all Block Io Ppi instances within the system
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// Assuming all device Block Io Peims are dispatched already
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//
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for (BlockIoPpiInstance = 0; BlockIoPpiInstance < PEI_CD_EXPRESS_MAX_BLOCK_IO_PPI; BlockIoPpiInstance++) {
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if (BlockIo2) {
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Status = PeiServicesLocatePpi (
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&gEfiPeiVirtualBlockIo2PpiGuid,
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BlockIoPpiInstance,
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&TempPpiDescriptor,
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(VOID **) &BlockIo2Ppi
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);
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} else {
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Status = PeiServicesLocatePpi (
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&gEfiPeiVirtualBlockIoPpiGuid,
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BlockIoPpiInstance,
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&TempPpiDescriptor,
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(VOID **) &BlockIoPpi
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);
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}
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if (EFI_ERROR (Status)) {
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//
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// Done with all Block Io Ppis
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//
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break;
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}
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PeiServices = (EFI_PEI_SERVICES **) GetPeiServicesTablePointer ();
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if (BlockIo2) {
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Status = BlockIo2Ppi->GetNumberOfBlockDevices (
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PeiServices,
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BlockIo2Ppi,
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&NumberBlockDevices
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);
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} else {
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Status = BlockIoPpi->GetNumberOfBlockDevices (
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PeiServices,
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BlockIoPpi,
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&NumberBlockDevices
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);
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}
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if (EFI_ERROR (Status) || (NumberBlockDevices == 0)) {
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continue;
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}
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//
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// Just retrieve the first block, should emulate all blocks.
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//
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for (IndexBlockDevice = 1; IndexBlockDevice <= NumberBlockDevices && PrivateData->CapsuleCount < PEI_CD_EXPRESS_MAX_CAPSULE_NUMBER; IndexBlockDevice ++) {
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if (BlockIo2) {
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Status = BlockIo2Ppi->GetBlockDeviceMediaInfo (
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PeiServices,
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BlockIo2Ppi,
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IndexBlockDevice,
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&Media2
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);
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if (EFI_ERROR (Status) ||
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!Media2.MediaPresent ||
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((Media2.InterfaceType != MSG_ATAPI_DP) && (Media2.InterfaceType != MSG_USB_DP)) ||
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(Media2.BlockSize != PEI_CD_BLOCK_SIZE)
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) {
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continue;
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}
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DEBUG ((EFI_D_INFO, "PeiCdExpress InterfaceType is %d\n", Media2.InterfaceType));
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DEBUG ((EFI_D_INFO, "PeiCdExpress MediaPresent is %d\n", Media2.MediaPresent));
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DEBUG ((EFI_D_INFO, "PeiCdExpress BlockSize is 0x%x\n", Media2.BlockSize));
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} else {
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Status = BlockIoPpi->GetBlockDeviceMediaInfo (
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PeiServices,
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BlockIoPpi,
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IndexBlockDevice,
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&Media
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);
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if (EFI_ERROR (Status) ||
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!Media.MediaPresent ||
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((Media.DeviceType != IdeCDROM) && (Media.DeviceType != UsbMassStorage)) ||
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(Media.BlockSize != PEI_CD_BLOCK_SIZE)
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) {
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continue;
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}
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DEBUG ((EFI_D_INFO, "PeiCdExpress DeviceType is %d\n", Media.DeviceType));
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DEBUG ((EFI_D_INFO, "PeiCdExpress MediaPresent is %d\n", Media.MediaPresent));
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DEBUG ((EFI_D_INFO, "PeiCdExpress BlockSize is 0x%x\n", Media.BlockSize));
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}
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DEBUG ((EFI_D_INFO, "PeiCdExpress Status is %d\n", Status));
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DEBUG ((EFI_D_INFO, "IndexBlockDevice is %d\n", IndexBlockDevice));
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PrivateData->CapsuleData[PrivateData->CapsuleCount].IndexBlock = IndexBlockDevice;
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if (BlockIo2) {
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PrivateData->CapsuleData[PrivateData->CapsuleCount].BlockIo2 = BlockIo2Ppi;
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} else {
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PrivateData->CapsuleData[PrivateData->CapsuleCount].BlockIo = BlockIoPpi;
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}
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Status = FindRecoveryCapsules (PrivateData);
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DEBUG ((EFI_D_INFO, "Status is %d\n", Status));
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if (EFI_ERROR (Status)) {
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continue;
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}
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PrivateData->CapsuleCount++;
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}
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}
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return EFI_SUCCESS;
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}
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/**
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Finds out the recovery capsule in the current volume.
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@param PrivateData The private data structure that contains recovery module information.
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@retval EFI_SUCCESS The recovery capsule is successfully found in the volume.
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@retval EFI_NOT_FOUND The recovery capsule is not found in the volume.
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**/
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EFI_STATUS
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EFIAPI
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FindRecoveryCapsules (
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IN OUT PEI_CD_EXPRESS_PRIVATE_DATA *PrivateData
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)
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{
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EFI_STATUS Status;
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UINTN Lba;
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EFI_PEI_RECOVERY_BLOCK_IO_PPI *BlockIoPpi;
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EFI_PEI_RECOVERY_BLOCK_IO2_PPI *BlockIo2Ppi;
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UINTN BufferSize;
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UINT8 *Buffer;
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UINT8 Type;
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UINT8 *StandardID;
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UINT32 RootDirLBA;
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PEI_CD_EXPRESS_DIR_FILE_RECORD *RoorDirRecord;
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UINTN VolumeSpaceSize;
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BOOLEAN StartOfVolume;
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UINTN OriginalLBA;
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UINTN IndexBlockDevice;
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Buffer = PrivateData->BlockBuffer;
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BufferSize = PEI_CD_BLOCK_SIZE;
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Lba = 16;
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//
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// The volume descriptor starts on Lba 16
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//
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IndexBlockDevice = PrivateData->CapsuleData[PrivateData->CapsuleCount].IndexBlock;
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BlockIoPpi = PrivateData->CapsuleData[PrivateData->CapsuleCount].BlockIo;
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BlockIo2Ppi = PrivateData->CapsuleData[PrivateData->CapsuleCount].BlockIo2;
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VolumeSpaceSize = 0;
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StartOfVolume = TRUE;
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OriginalLBA = 16;
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while (TRUE) {
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SetMem (Buffer, BufferSize, 0);
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if (BlockIo2Ppi != NULL) {
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Status = BlockIo2Ppi->ReadBlocks (
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(EFI_PEI_SERVICES **) GetPeiServicesTablePointer (),
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BlockIo2Ppi,
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IndexBlockDevice,
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Lba,
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BufferSize,
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Buffer
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);
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} else {
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Status = BlockIoPpi->ReadBlocks (
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(EFI_PEI_SERVICES **) GetPeiServicesTablePointer (),
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BlockIoPpi,
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IndexBlockDevice,
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Lba,
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BufferSize,
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Buffer
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);
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}
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if (EFI_ERROR (Status)) {
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return Status;
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}
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StandardID = (UINT8 *) (Buffer + PEI_CD_EXPRESS_STANDARD_ID_OFFSET);
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if (!StringCmp (StandardID, (UINT8 *) PEI_CD_STANDARD_ID, PEI_CD_EXPRESS_STANDARD_ID_SIZE, TRUE)) {
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break;
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}
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if (StartOfVolume) {
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OriginalLBA = Lba;
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StartOfVolume = FALSE;
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}
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Type = *(UINT8 *) (Buffer + PEI_CD_EXPRESS_VOLUME_TYPE_OFFSET);
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if (Type == PEI_CD_EXPRESS_VOLUME_TYPE_TERMINATOR) {
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if (VolumeSpaceSize == 0) {
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break;
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} else {
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Lba = (OriginalLBA + VolumeSpaceSize);
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VolumeSpaceSize = 0;
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StartOfVolume = TRUE;
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continue;
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}
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}
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if (Type != PEI_CD_EXPRESS_VOLUME_TYPE_PRIMARY) {
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Lba++;
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continue;
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}
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VolumeSpaceSize = *(UINT32 *) (Buffer + PEI_CD_EXPRESS_VOLUME_SPACE_OFFSET);
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RoorDirRecord = (PEI_CD_EXPRESS_DIR_FILE_RECORD *) (Buffer + PEI_CD_EXPRESS_ROOT_DIR_RECORD_OFFSET);
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RootDirLBA = RoorDirRecord->LocationOfExtent[0];
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Status = RetrieveCapsuleFileFromRoot (PrivateData, BlockIoPpi, BlockIo2Ppi, IndexBlockDevice, RootDirLBA);
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if (!EFI_ERROR (Status)) {
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//
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// Just look for the first primary descriptor
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//
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return EFI_SUCCESS;
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}
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Lba++;
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}
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return EFI_NOT_FOUND;
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}
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/**
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Retrieves the recovery capsule in root directory of the current volume.
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@param PrivateData The private data structure that contains recovery module information.
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@param BlockIoPpi The Block IO PPI used to access the volume.
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@param BlockIo2Ppi The Block IO 2 PPI used to access the volume.
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@param IndexBlockDevice The index of current block device.
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@param Lba The starting logic block address to retrieve capsule.
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@retval EFI_SUCCESS The recovery capsule is successfully found in the volume.
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@retval EFI_NOT_FOUND The recovery capsule is not found in the volume.
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@retval Others
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**/
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EFI_STATUS
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EFIAPI
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RetrieveCapsuleFileFromRoot (
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IN OUT PEI_CD_EXPRESS_PRIVATE_DATA *PrivateData,
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IN EFI_PEI_RECOVERY_BLOCK_IO_PPI *BlockIoPpi,
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IN EFI_PEI_RECOVERY_BLOCK_IO2_PPI *BlockIo2Ppi,
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IN UINTN IndexBlockDevice,
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IN UINT32 Lba
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)
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{
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EFI_STATUS Status;
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UINTN BufferSize;
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UINT8 *Buffer;
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PEI_CD_EXPRESS_DIR_FILE_RECORD *FileRecord;
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UINTN Index;
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Buffer = PrivateData->BlockBuffer;
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BufferSize = PEI_CD_BLOCK_SIZE;
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SetMem (Buffer, BufferSize, 0);
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|
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if (BlockIo2Ppi != NULL) {
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Status = BlockIo2Ppi->ReadBlocks (
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(EFI_PEI_SERVICES **) GetPeiServicesTablePointer (),
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BlockIo2Ppi,
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IndexBlockDevice,
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Lba,
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BufferSize,
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Buffer
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);
|
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} else {
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Status = BlockIoPpi->ReadBlocks (
|
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(EFI_PEI_SERVICES **) GetPeiServicesTablePointer (),
|
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BlockIoPpi,
|
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IndexBlockDevice,
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Lba,
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BufferSize,
|
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Buffer
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);
|
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}
|
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if (EFI_ERROR (Status)) {
|
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return Status;
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}
|
|
|
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while (1) {
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FileRecord = (PEI_CD_EXPRESS_DIR_FILE_RECORD *) Buffer;
|
|
|
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if (FileRecord->Length == 0) {
|
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break;
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}
|
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//
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// Not intend to check other flag now
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//
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if ((FileRecord->Flag & PEI_CD_EXPRESS_DIR_FILE_REC_FLAG_ISDIR) != 0) {
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Buffer += FileRecord->Length;
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continue;
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}
|
|
|
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for (Index = 0; Index < FileRecord->FileIDLength; Index++) {
|
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if (FileRecord->FileID[Index] == ';') {
|
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break;
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}
|
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}
|
|
|
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if (Index != mRecoveryFileNameSize - 1) {
|
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Buffer += FileRecord->Length;
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continue;
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}
|
|
|
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if (!StringCmp (FileRecord->FileID, (UINT8 *)mRecoveryFileName, mRecoveryFileNameSize - 1, FALSE)) {
|
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Buffer += FileRecord->Length;
|
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continue;
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}
|
|
|
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PrivateData->CapsuleData[PrivateData->CapsuleCount].CapsuleStartLBA = FileRecord->LocationOfExtent[0];
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PrivateData->CapsuleData[PrivateData->CapsuleCount].CapsuleBlockAlignedSize =
|
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(
|
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FileRecord->DataLength[0] /
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PEI_CD_BLOCK_SIZE +
|
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1
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) *
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PEI_CD_BLOCK_SIZE;
|
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PrivateData->CapsuleData[PrivateData->CapsuleCount].CapsuleSize = FileRecord->DataLength[0];
|
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|
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return EFI_SUCCESS;
|
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}
|
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|
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return EFI_NOT_FOUND;
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|
}
|
|
|
|
/**
|
|
Returns the number of DXE capsules residing on the device.
|
|
|
|
This function searches for DXE capsules from the associated device and returns
|
|
the number and maximum size in bytes of the capsules discovered. Entry 1 is
|
|
assumed to be the highest load priority and entry N is assumed to be the lowest
|
|
priority.
|
|
|
|
@param[in] PeiServices General-purpose services that are available
|
|
to every PEIM
|
|
@param[in] This Indicates the EFI_PEI_DEVICE_RECOVERY_MODULE_PPI
|
|
instance.
|
|
@param[out] NumberRecoveryCapsules Pointer to a caller-allocated UINTN. On
|
|
output, *NumberRecoveryCapsules contains
|
|
the number of recovery capsule images
|
|
available for retrieval from this PEIM
|
|
instance.
|
|
|
|
@retval EFI_SUCCESS One or more capsules were discovered.
|
|
@retval EFI_DEVICE_ERROR A device error occurred.
|
|
@retval EFI_NOT_FOUND A recovery DXE capsule cannot be found.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
GetNumberRecoveryCapsules (
|
|
IN EFI_PEI_SERVICES **PeiServices,
|
|
IN EFI_PEI_DEVICE_RECOVERY_MODULE_PPI *This,
|
|
OUT UINTN *NumberRecoveryCapsules
|
|
)
|
|
{
|
|
PEI_CD_EXPRESS_PRIVATE_DATA *PrivateData;
|
|
|
|
PrivateData = PEI_CD_EXPRESS_PRIVATE_DATA_FROM_THIS (This);
|
|
UpdateBlocksAndVolumes (PrivateData, TRUE);
|
|
UpdateBlocksAndVolumes (PrivateData, FALSE);
|
|
*NumberRecoveryCapsules = PrivateData->CapsuleCount;
|
|
|
|
if (*NumberRecoveryCapsules == 0) {
|
|
return EFI_NOT_FOUND;
|
|
}
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Returns the size and type of the requested recovery capsule.
|
|
|
|
This function gets the size and type of the capsule specified by CapsuleInstance.
|
|
|
|
@param[in] PeiServices General-purpose services that are available to every PEIM
|
|
@param[in] This Indicates the EFI_PEI_DEVICE_RECOVERY_MODULE_PPI
|
|
instance.
|
|
@param[in] CapsuleInstance Specifies for which capsule instance to retrieve
|
|
the information. This parameter must be between
|
|
one and the value returned by GetNumberRecoveryCapsules()
|
|
in NumberRecoveryCapsules.
|
|
@param[out] Size A pointer to a caller-allocated UINTN in which
|
|
the size of the requested recovery module is
|
|
returned.
|
|
@param[out] CapsuleType A pointer to a caller-allocated EFI_GUID in which
|
|
the type of the requested recovery capsule is
|
|
returned. The semantic meaning of the value
|
|
returned is defined by the implementation.
|
|
|
|
@retval EFI_SUCCESS One or more capsules were discovered.
|
|
@retval EFI_DEVICE_ERROR A device error occurred.
|
|
@retval EFI_NOT_FOUND A recovery DXE capsule cannot be found.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
GetRecoveryCapsuleInfo (
|
|
IN EFI_PEI_SERVICES **PeiServices,
|
|
IN EFI_PEI_DEVICE_RECOVERY_MODULE_PPI *This,
|
|
IN UINTN CapsuleInstance,
|
|
OUT UINTN *Size,
|
|
OUT EFI_GUID *CapsuleType
|
|
)
|
|
{
|
|
PEI_CD_EXPRESS_PRIVATE_DATA *PrivateData;
|
|
UINTN NumberRecoveryCapsules;
|
|
EFI_STATUS Status;
|
|
|
|
Status = GetNumberRecoveryCapsules (PeiServices, This, &NumberRecoveryCapsules);
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
return Status;
|
|
}
|
|
|
|
if (FeaturePcdGet (PcdFrameworkCompatibilitySupport)) {
|
|
CapsuleInstance = CapsuleInstance + 1;
|
|
}
|
|
|
|
if ((CapsuleInstance == 0) || (CapsuleInstance > NumberRecoveryCapsules)) {
|
|
return EFI_NOT_FOUND;
|
|
}
|
|
|
|
PrivateData = PEI_CD_EXPRESS_PRIVATE_DATA_FROM_THIS (This);
|
|
|
|
*Size = PrivateData->CapsuleData[CapsuleInstance - 1].CapsuleSize;
|
|
CopyMem (
|
|
CapsuleType,
|
|
&gRecoveryOnDataCdGuid,
|
|
sizeof (EFI_GUID)
|
|
);
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Loads a DXE capsule from some media into memory.
|
|
|
|
This function, by whatever mechanism, retrieves a DXE capsule from some device
|
|
and loads it into memory. Note that the published interface is device neutral.
|
|
|
|
@param[in] PeiServices General-purpose services that are available
|
|
to every PEIM
|
|
@param[in] This Indicates the EFI_PEI_DEVICE_RECOVERY_MODULE_PPI
|
|
instance.
|
|
@param[in] CapsuleInstance Specifies which capsule instance to retrieve.
|
|
@param[out] Buffer Specifies a caller-allocated buffer in which
|
|
the requested recovery capsule will be returned.
|
|
|
|
@retval EFI_SUCCESS The capsule was loaded correctly.
|
|
@retval EFI_DEVICE_ERROR A device error occurred.
|
|
@retval EFI_NOT_FOUND A requested recovery DXE capsule cannot be found.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
LoadRecoveryCapsule (
|
|
IN EFI_PEI_SERVICES **PeiServices,
|
|
IN EFI_PEI_DEVICE_RECOVERY_MODULE_PPI *This,
|
|
IN UINTN CapsuleInstance,
|
|
OUT VOID *Buffer
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
PEI_CD_EXPRESS_PRIVATE_DATA *PrivateData;
|
|
EFI_PEI_RECOVERY_BLOCK_IO_PPI *BlockIoPpi;
|
|
EFI_PEI_RECOVERY_BLOCK_IO2_PPI *BlockIo2Ppi;
|
|
UINTN NumberRecoveryCapsules;
|
|
|
|
Status = GetNumberRecoveryCapsules (PeiServices, This, &NumberRecoveryCapsules);
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
return Status;
|
|
}
|
|
|
|
if (FeaturePcdGet (PcdFrameworkCompatibilitySupport)) {
|
|
CapsuleInstance = CapsuleInstance + 1;
|
|
}
|
|
|
|
if ((CapsuleInstance == 0) || (CapsuleInstance > NumberRecoveryCapsules)) {
|
|
return EFI_NOT_FOUND;
|
|
}
|
|
|
|
PrivateData = PEI_CD_EXPRESS_PRIVATE_DATA_FROM_THIS (This);
|
|
BlockIoPpi = PrivateData->CapsuleData[CapsuleInstance - 1].BlockIo;
|
|
BlockIo2Ppi = PrivateData->CapsuleData[CapsuleInstance - 1].BlockIo2;
|
|
|
|
if (BlockIo2Ppi != NULL) {
|
|
Status = BlockIo2Ppi->ReadBlocks (
|
|
PeiServices,
|
|
BlockIo2Ppi,
|
|
PrivateData->CapsuleData[CapsuleInstance - 1].IndexBlock,
|
|
PrivateData->CapsuleData[CapsuleInstance - 1].CapsuleStartLBA,
|
|
PrivateData->CapsuleData[CapsuleInstance - 1].CapsuleBlockAlignedSize,
|
|
Buffer
|
|
);
|
|
} else {
|
|
Status = BlockIoPpi->ReadBlocks (
|
|
PeiServices,
|
|
BlockIoPpi,
|
|
PrivateData->CapsuleData[CapsuleInstance - 1].IndexBlock,
|
|
PrivateData->CapsuleData[CapsuleInstance - 1].CapsuleStartLBA,
|
|
PrivateData->CapsuleData[CapsuleInstance - 1].CapsuleBlockAlignedSize,
|
|
Buffer
|
|
);
|
|
}
|
|
return Status;
|
|
}
|
|
|
|
/**
|
|
This function compares two ASCII strings in case sensitive/insensitive way.
|
|
|
|
@param Source1 The first string.
|
|
@param Source2 The second string.
|
|
@param Size The maximum comparison length.
|
|
@param CaseSensitive Flag to indicate whether the comparison is case sensitive.
|
|
|
|
@retval TRUE The two strings are the same.
|
|
@retval FALSE The two string are not the same.
|
|
|
|
**/
|
|
BOOLEAN
|
|
StringCmp (
|
|
IN UINT8 *Source1,
|
|
IN UINT8 *Source2,
|
|
IN UINTN Size,
|
|
IN BOOLEAN CaseSensitive
|
|
)
|
|
{
|
|
UINTN Index;
|
|
UINT8 Dif;
|
|
|
|
for (Index = 0; Index < Size; Index++) {
|
|
if (Source1[Index] == Source2[Index]) {
|
|
continue;
|
|
}
|
|
|
|
if (!CaseSensitive) {
|
|
Dif = (UINT8) ((Source1[Index] > Source2[Index]) ? (Source1[Index] - Source2[Index]) : (Source2[Index] - Source1[Index]));
|
|
if (Dif == ('a' - 'A')) {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|