diff options
Diffstat (limited to 'Platform/Intel/AdvancedFeaturePkg/Ipmi/OsWdt')
| -rw-r--r-- | Platform/Intel/AdvancedFeaturePkg/Ipmi/OsWdt/OsWdt.c | 118 | ||||
| -rw-r--r-- | Platform/Intel/AdvancedFeaturePkg/Ipmi/OsWdt/OsWdt.inf | 40 |
2 files changed, 158 insertions, 0 deletions
diff --git a/Platform/Intel/AdvancedFeaturePkg/Ipmi/OsWdt/OsWdt.c b/Platform/Intel/AdvancedFeaturePkg/Ipmi/OsWdt/OsWdt.c new file mode 100644 index 0000000000..c64c70f2a9 --- /dev/null +++ b/Platform/Intel/AdvancedFeaturePkg/Ipmi/OsWdt/OsWdt.c @@ -0,0 +1,118 @@ +/** @file
+ IPMI Os watchdog timer Driver.
+
+Copyright (c) 2018, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials are licensed and made available under
+the terms and conditions of the BSD License that accompanies this distribution.
+The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php.
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <Uefi.h>
+#include <Library/DebugLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/IpmiCommandLib.h>
+#include <IndustryStandard/Ipmi.h>
+#include <IpmiEx.h>
+
+BOOLEAN mOsWdtFlag = FALSE;
+
+EFI_EVENT mExitBootServicesEvent;
+
+VOID
+EFIAPI
+EnableEfiOsBootWdtHandler (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+/*++
+
+Routine Description:
+ Enable the OS Boot Watchdog Timer.
+ Is called only on legacy or EFI OS boot.
+
+Arguments:
+ Event - Event type
+ *Context - Context for the event
+
+Returns:
+ None
+
+--*/
+{
+ EFI_STATUS Status;
+ IPMI_SET_WATCHDOG_TIMER_REQUEST SetWatchdogTimer;
+ UINT8 CompletionCode;
+ IPMI_GET_WATCHDOG_TIMER_RESPONSE GetWatchdogTimer;
+ static BOOLEAN OsWdtEventHandled = FALSE;
+
+ DEBUG((EFI_D_ERROR, "!!! EnableEfiOsBootWdtHandler()!!!\n"));
+
+ //
+ // Make sure it processes once only. And proceess it only if OsWdtFlag==TRUE;
+ //
+ if (OsWdtEventHandled || !mOsWdtFlag) {
+ return ;
+ }
+
+ OsWdtEventHandled = TRUE;
+
+ Status = IpmiGetWatchdogTimer (&GetWatchdogTimer);
+ if (EFI_ERROR (Status)) {
+ return ;
+ }
+
+ ZeroMem (&SetWatchdogTimer, sizeof(SetWatchdogTimer));
+ //
+ // Just flip the Timer Use bit. This should release the timer.
+ //
+ SetWatchdogTimer.TimerUse.TimerRunning = 1;
+ SetWatchdogTimer.TimerUse.TimerUse = IPMI_WATCHDOG_TIMER_OS_LOADER;
+ SetWatchdogTimer.TimerActions = IPMI_WATCHDOG_TIMER_ACTION_HARD_RESET;
+ SetWatchdogTimer.TimerUseExpirationFlagsClear &= ~BIT4;
+ SetWatchdogTimer.TimerUseExpirationFlagsClear |= BIT1 | BIT2;
+ SetWatchdogTimer.InitialCountdownValue = 600; // 100ms / count
+
+ Status = IpmiSetWatchdogTimer (&SetWatchdogTimer, &CompletionCode);
+ return ;
+}
+
+EFI_STATUS
+EFIAPI
+DriverInit (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+/*++
+
+Routine Description:
+ This is the standard EFI driver point. This function intitializes
+ the private data required for creating ASRR Driver.
+
+Arguments:
+ As required for DXE driver enrty routine.
+ ImageHandle - ImageHandle of the loaded driver
+ SystemTable - Pointer to the System Table
+
+Returns:
+ EFI_SUCCESS - Protocol successfully started and installed.
+
+--*/
+{
+ EFI_STATUS Status;
+
+ Status = gBS->CreateEvent (
+ EVT_SIGNAL_EXIT_BOOT_SERVICES,
+ TPL_NOTIFY,
+ EnableEfiOsBootWdtHandler,
+ NULL,
+ &mExitBootServicesEvent
+ );
+
+ return EFI_SUCCESS;
+}
diff --git a/Platform/Intel/AdvancedFeaturePkg/Ipmi/OsWdt/OsWdt.inf b/Platform/Intel/AdvancedFeaturePkg/Ipmi/OsWdt/OsWdt.inf new file mode 100644 index 0000000000..31e78ccc30 --- /dev/null +++ b/Platform/Intel/AdvancedFeaturePkg/Ipmi/OsWdt/OsWdt.inf @@ -0,0 +1,40 @@ +### @file
+# Component description file for IPMI OS watch dog timer driver.
+#
+# Copyright (c) 2018, Intel Corporation. All rights reserved.<BR>
+#
+# This program and the accompanying materials are licensed and made available under
+# the terms and conditions of the BSD License which accompanies this distribution.
+# The full text of the license may be found at
+# http://opensource.org/licenses/bsd-license.php
+#
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+###
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = OsWdt
+ FILE_GUID = BE9B694A-B5D9-48e0-A527-6E1A49EB7028
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 1.0
+ ENTRY_POINT = DriverInit
+
+[Sources]
+ OsWdt.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ AdvancedFeaturePkg/AdvancedFeaturePkg.dec
+
+[LibraryClasses]
+ UefiDriverEntryPoint
+ DebugLib
+ UefiBootServicesTableLib
+ BaseMemoryLib
+ IpmiCommandLib
+
+[Depex]
+ TRUE
+
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