diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/edk2/MdeModulePkg/Core/Pei/Reset | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/edk2/MdeModulePkg/Core/Pei/Reset')
| -rw-r--r-- | roms/edk2/MdeModulePkg/Core/Pei/Reset/Reset.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/roms/edk2/MdeModulePkg/Core/Pei/Reset/Reset.c b/roms/edk2/MdeModulePkg/Core/Pei/Reset/Reset.c new file mode 100644 index 000000000..0c3cfad03 --- /dev/null +++ b/roms/edk2/MdeModulePkg/Core/Pei/Reset/Reset.c @@ -0,0 +1,111 @@ +/** @file
+ Pei Core Reset System Support
+
+Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "PeiMain.h"
+
+/**
+
+ Core version of the Reset System
+
+
+ @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
+
+ @retval EFI_NOT_AVAILABLE_YET PPI not available yet.
+ @retval EFI_DEVICE_ERROR Did not reset system.
+ Otherwise, resets the system.
+
+**/
+EFI_STATUS
+EFIAPI
+PeiResetSystem (
+ IN CONST EFI_PEI_SERVICES **PeiServices
+ )
+{
+ EFI_STATUS Status;
+ EFI_PEI_RESET_PPI *ResetPpi;
+
+ //
+ // Attempt to use newer ResetSystem2(). If this returns, then ResetSystem2()
+ // is not available.
+ //
+ PeiResetSystem2 (EfiResetCold, EFI_SUCCESS, 0, NULL);
+
+ //
+ // Look for PEI Reset System PPI
+ //
+ Status = PeiServicesLocatePpi (
+ &gEfiPeiResetPpiGuid,
+ 0,
+ NULL,
+ (VOID **)&ResetPpi
+ );
+ if (!EFI_ERROR (Status)) {
+ return ResetPpi->ResetSystem (PeiServices);
+ }
+
+ //
+ // Report Status Code that Reset PPI is not available.
+ //
+ REPORT_STATUS_CODE (
+ EFI_ERROR_CODE | EFI_ERROR_MINOR,
+ (EFI_SOFTWARE_PEI_CORE | EFI_SW_PS_EC_RESET_NOT_AVAILABLE)
+ );
+
+ //
+ // No reset PPIs are available yet.
+ //
+ return EFI_NOT_AVAILABLE_YET;
+}
+
+/**
+ Resets the entire platform.
+
+ @param[in] ResetType The type of reset to perform.
+ @param[in] ResetStatus The status code for the reset.
+ @param[in] DataSize The size, in bytes, of ResetData.
+ @param[in] ResetData For a ResetType of EfiResetCold, EfiResetWarm, or EfiResetShutdown
+ the data buffer starts with a Null-terminated string, optionally
+ followed by additional binary data. The string is a description
+ that the caller may use to further indicate the reason for the
+ system reset.
+
+**/
+VOID
+EFIAPI
+PeiResetSystem2 (
+ IN EFI_RESET_TYPE ResetType,
+ IN EFI_STATUS ResetStatus,
+ IN UINTN DataSize,
+ IN VOID *ResetData OPTIONAL
+ )
+{
+ EFI_STATUS Status;
+ EFI_PEI_RESET2_PPI *Reset2Ppi;
+
+ //
+ // Look for PEI Reset System 2 PPI
+ //
+ Status = PeiServicesLocatePpi (
+ &gEfiPeiReset2PpiGuid,
+ 0,
+ NULL,
+ (VOID **)&Reset2Ppi
+ );
+ if (!EFI_ERROR (Status)) {
+ Reset2Ppi->ResetSystem (ResetType, ResetStatus, DataSize, ResetData);
+ return;
+ }
+
+ //
+ // Report Status Code that Reset2 PPI is not available.
+ //
+ REPORT_STATUS_CODE (
+ EFI_ERROR_CODE | EFI_ERROR_MINOR,
+ (EFI_SOFTWARE_PEI_CORE | EFI_SW_PS_EC_RESET_NOT_AVAILABLE)
+ );
+}
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