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https://github.com/CloverHackyColor/CloverBootloader.git
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112 lines
2.9 KiB
C
112 lines
2.9 KiB
C
/** @file
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Pei Core Reset System Support
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Copyright (c) 2006 - 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 "PeiMain.h"
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/**
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Core version of the Reset System
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@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
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@retval EFI_NOT_AVAILABLE_YET PPI not available yet.
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@retval EFI_DEVICE_ERROR Did not reset system.
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Otherwise, resets the system.
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**/
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EFI_STATUS
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EFIAPI
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PeiResetSystem (
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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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EFI_PEI_RESET_PPI *ResetPpi;
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//
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// Attempt to use newer ResetSystem2(). If this returns, then ResetSystem2()
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// is not available.
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//
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PeiResetSystem2 (EfiResetCold, EFI_SUCCESS, 0, NULL);
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//
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// Look for PEI Reset System PPI
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//
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Status = PeiServicesLocatePpi (
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&gEfiPeiResetPpiGuid,
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0,
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NULL,
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(VOID **)&ResetPpi
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);
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if (!EFI_ERROR (Status)) {
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return ResetPpi->ResetSystem (PeiServices);
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}
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//
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// Report Status Code that Reset PPI is not available.
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//
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REPORT_STATUS_CODE (
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EFI_ERROR_CODE | EFI_ERROR_MINOR,
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(EFI_SOFTWARE_PEI_CORE | EFI_SW_PS_EC_RESET_NOT_AVAILABLE)
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);
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//
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// No reset PPIs are available yet.
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//
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return EFI_NOT_AVAILABLE_YET;
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}
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/**
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Resets the entire platform.
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@param[in] ResetType The type of reset to perform.
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@param[in] ResetStatus The status code for the reset.
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@param[in] DataSize The size, in bytes, of ResetData.
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@param[in] ResetData For a ResetType of EfiResetCold, EfiResetWarm, or EfiResetShutdown
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the data buffer starts with a Null-terminated string, optionally
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followed by additional binary data. The string is a description
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that the caller may use to further indicate the reason for the
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system reset.
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**/
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VOID
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EFIAPI
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PeiResetSystem2 (
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IN EFI_RESET_TYPE ResetType,
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IN EFI_STATUS ResetStatus,
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IN UINTN DataSize,
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IN VOID *ResetData OPTIONAL
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)
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{
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EFI_STATUS Status;
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EFI_PEI_RESET2_PPI *Reset2Ppi;
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//
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// Look for PEI Reset System 2 PPI
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//
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Status = PeiServicesLocatePpi (
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&gEfiPeiReset2PpiGuid,
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0,
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NULL,
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(VOID **)&Reset2Ppi
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);
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if (!EFI_ERROR (Status)) {
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Reset2Ppi->ResetSystem (ResetType, ResetStatus, DataSize, ResetData);
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return;
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}
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//
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// Report Status Code that Reset2 PPI is not available.
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//
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REPORT_STATUS_CODE (
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EFI_ERROR_CODE | EFI_ERROR_MINOR,
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(EFI_SOFTWARE_PEI_CORE | EFI_SW_PS_EC_RESET_NOT_AVAILABLE)
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);
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}
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