/** @file
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PCH RESET PEIM DRIVER.
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Copyright (c) 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 <Library/DebugLib.h>
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#include <Library/PeiServicesLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Ppi/Reset2.h>
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#include <Ppi/PchReset.h>
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#include <Library/PchResetLib.h>
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#include <Library/ResetSystemLib.h>
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/**
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Resets the entire platform.
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@param[in] ResetType UEFI defined reset type.
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@param[in] ResetStatus The status code for the reset.
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@param[in] DataSize The size of ResetData in bytes.
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@param[in] ResetData Optional element used to introduce a platform specific reset.
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The exact type of the reset is defined by the EFI_GUID that follows
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the Null-terminated Unicode string.
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**/
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VOID
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EFIAPI
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ResetSystem (
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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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switch (ResetType) {
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case EfiResetWarm:
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ResetWarm ();
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break;
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case EfiResetCold:
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ResetCold ();
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break;
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case EfiResetShutdown:
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ResetShutdown ();
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return;
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case EfiResetPlatformSpecific:
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ResetPlatformSpecific (DataSize, ResetData);
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return;
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default:
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return;
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}
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//
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// Given we should have reset getting here would be bad
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//
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ASSERT (FALSE);
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CpuDeadLoop();
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}
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/**
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Initialize PCH Reset APIs
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@retval EFI_SUCCESS APIs are installed successfully
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@retval EFI_OUT_OF_RESOURCES Can't allocate pool
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**/
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EFI_STATUS
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EFIAPI
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PchInitializeReset (
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VOID
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)
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{
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EFI_STATUS Status;
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EFI_PEI_RESET2_PPI *EfiPeiReset2Ppi;
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EFI_PEI_PPI_DESCRIPTOR *EfiPeiReset2Descriptor;
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DEBUG ((DEBUG_INFO, "PchInitializeReset() Start\n"));
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EfiPeiReset2Descriptor = (EFI_PEI_PPI_DESCRIPTOR *) AllocateZeroPool (sizeof (EFI_PEI_PPI_DESCRIPTOR));
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EfiPeiReset2Ppi = (EFI_PEI_RESET2_PPI *) AllocateZeroPool (sizeof (EFI_PEI_RESET2_PPI));
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if ((EfiPeiReset2Descriptor == NULL) ||
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(EfiPeiReset2Ppi == NULL)) {
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ASSERT (FALSE);
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return EFI_OUT_OF_RESOURCES;
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}
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///
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/// Initialize the EFI Reset2 ppi instance
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///
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EfiPeiReset2Ppi->ResetSystem = ResetSystem;
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EfiPeiReset2Descriptor->Flags = EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST;
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EfiPeiReset2Descriptor->Guid = &gEfiPeiReset2PpiGuid;
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EfiPeiReset2Descriptor->Ppi = EfiPeiReset2Ppi;
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Status = PeiServicesInstallPpi (EfiPeiReset2Descriptor);
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ASSERT_EFI_ERROR (Status);
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DEBUG ((DEBUG_INFO, "PchInitializeReset() End\n"));
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return Status;
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}
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