[edk2-devel] [edk2-platforms][PATCH 1/2] ManageabilityPkg/IpmiOsWdt: IPMI OS Watchdog timer Driver
Isaac Oram
isaac.w.oram at intel.com
Fri May 19 03:12:11 UTC 2023
Reviewed-by: Isaac Oram <isaac.w.oram at intel.com>
-----Original Message-----
From: devel at edk2.groups.io <devel at edk2.groups.io> On Behalf Of Chang, Abner via groups.io
Sent: Thursday, May 11, 2023 9:07 PM
To: devel at edk2.groups.io
Cc: Oram, Isaac W <isaac.w.oram at intel.com>; Abdul Lateef Attar <abdattar at amd.com>; Nickle Wang <nicklew at nvidia.com>; Tinh Nguyen <tinhnguyen at os.amperecomputing.com>
Subject: [edk2-devel] [edk2-platforms][PATCH 1/2] ManageabilityPkg/IpmiOsWdt: IPMI OS Watchdog timer Driver
From: Abner Chang <abner.chang at amd.com>
IpmiOsWdt is cloned from
edk2-platforms/Features/Intel/OutOfBandManagement/
IpmiFeaturePkg/OsWdt in order to consolidate
edk2 system manageability support in one place.
Uncustify is applied to C files and no functionalities are changed in this patch.
We will still keep the one under IpmiFeaturePkg/OsWdt until the reference to this instance are removed from platforms.
Signed-off-by: Abner Chang <abner.chang at amd.com>
Cc: Isaac Oram <isaac.w.oram at intel.com>
Cc: Abdul Lateef Attar <abdattar at amd.com>
Cc: Nickle Wang <nicklew at nvidia.com>
Cc: Tinh Nguyen <tinhnguyen at os.amperecomputing.com>
---
.../Universal/IpmiOsWdt/OsWdt.inf | 33 ++++++
.../Universal/IpmiOsWdt/OsWdt.c | 112 ++++++++++++++++++
2 files changed, 145 insertions(+)
create mode 100644 Features/ManageabilityPkg/Universal/IpmiOsWdt/OsWdt.inf
create mode 100644 Features/ManageabilityPkg/Universal/IpmiOsWdt/OsWdt.c
diff --git a/Features/ManageabilityPkg/Universal/IpmiOsWdt/OsWdt.inf b/Features/ManageabilityPkg/Universal/IpmiOsWdt/OsWdt.inf
new file mode 100644
index 0000000000..b5af3b25e1
--- /dev/null
+++ b/Features/ManageabilityPkg/Universal/IpmiOsWdt/OsWdt.inf
@@ -0,0 +1,33 @@
+### @file
+# Component description file for IPMI OS watch dog timer driver.
+#
+# Copyright (c) 2018 - 2019, Intel Corporation. All rights
+reserved.<BR> # # SPDX-License-Identifier: BSD-2-Clause-Patent # ###
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = OsWdt
+ FILE_GUID = BA4FD21F-8443-4017-8D13-70EC92F4BD4C
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 1.0
+ ENTRY_POINT = DriverInit
+
+[Sources]
+ OsWdt.c
+
+[Packages]
+ ManageabilityPkg/ManageabilityPkg.dec
+ MdePkg/MdePkg.dec
+
+[LibraryClasses]
+ DebugLib
+ IpmiCommandLib
+ UefiBootServicesTableLib
+ UefiDriverEntryPoint
+ UefiLib
+
+[Depex]
+ TRUE
diff --git a/Features/ManageabilityPkg/Universal/IpmiOsWdt/OsWdt.c b/Features/ManageabilityPkg/Universal/IpmiOsWdt/OsWdt.c
new file mode 100644
index 0000000000..e2bbd95b83
--- /dev/null
+++ b/Features/ManageabilityPkg/Universal/IpmiOsWdt/OsWdt.c
@@ -0,0 +1,112 @@
+/** @file
+ IPMI Os watchdog timer Driver.
+
+Copyright (c) 2018 - 2019, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Uefi.h>
+#include <Library/DebugLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/IpmiCommandLib.h>
+#include <IndustryStandard/Ipmi.h>
+
+BOOLEAN mOsWdtFlag = FALSE;
+
+EFI_EVENT mExitBootServicesEvent;
+
+/*++
+
+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
+
+--*/
+VOID
+EFIAPI
+EnableEfiOsBootWdtHandler (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ EFI_STATUS Status;
+ IPMI_SET_WATCHDOG_TIMER_REQUEST SetWatchdogTimer;
+ UINT8 CompletionCode;
+ IPMI_GET_WATCHDOG_TIMER_RESPONSE GetWatchdogTimer;
+ static BOOLEAN OsWdtEventHandled = FALSE;
+
+ DEBUG ((DEBUG_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.Bits.TimerRunning = 1;
+ SetWatchdogTimer.TimerUse.Bits.TimerUse = IPMI_WATCHDOG_TIMER_OS_LOADER;
+ SetWatchdogTimer.TimerActions.Uint8 = IPMI_WATCHDOG_TIMER_ACTION_HARD_RESET;
+ SetWatchdogTimer.TimerUseExpirationFlagsClear &= ~BIT4;
+ SetWatchdogTimer.TimerUseExpirationFlagsClear |= BIT1 | BIT2;
+ SetWatchdogTimer.InitialCountdownValue = 600; // 100ms / count
+
+ Status = IpmiSetWatchdogTimer (&SetWatchdogTimer, &CompletionCode);
+ return;
+}
+
+/*++
+
+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:
+ @retval EFI_SUCCESS Protocol successfully started and installed.
+ @retval EFI_OUT_OF_RESOURCES The event could not be allocated.
+
+--*/
+EFI_STATUS
+EFIAPI
+DriverInit (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+
+ Status = gBS->CreateEvent (
+ EVT_SIGNAL_EXIT_BOOT_SERVICES,
+ TPL_NOTIFY,
+ EnableEfiOsBootWdtHandler,
+ NULL,
+ &mExitBootServicesEvent
+ );
+
+ return Status;
+}
--
2.37.1.windows.1
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