Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu...@intel.com>
Cc: Star Zeng <star.z...@intel.com>
---
.../Universal/ResetSystemRuntimeDxe/ResetSystem.c | 137 ++++++++++++++++++++-
.../Universal/ResetSystemRuntimeDxe/ResetSystem.h | 21 +++-
.../ResetSystemRuntimeDxe.inf | 5 +-
3 files changed, 155 insertions(+), 8 deletions(-)
diff --git a/MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystem.c
b/MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystem.c
index 64f2da5ce9..36c3238301 100644
--- a/MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystem.c
+++ b/MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystem.c
@@ -16,6 +16,121 @@
#include "ResetSystem.h"
/**
+ Register a notification function to be called when ResetSystem() is called.
+
+ The RegisterResetNotify() function registers a notification function that is
called when
+ ResetSystem()is called and prior to completing the reset of the platform.
+ The registered functions must not perform a platform reset themselves. These
+ notifications are intended only for the notification of components which may
need some
+ special-purpose maintenance prior to the platform resetting.
+ The list of registered reset notification functions are processed if
ResetSystem()is called
+ before ExitBootServices(). The list of registered reset notification
functions is ignored if
+ ResetSystem()is called after ExitBootServices().
+
+ @param[in] This A pointer to the
EFI_RESET_NOTIFICATION_PROTOCOL instance.
+ @param[in] ResetFunction Points to the function to be called when a
ResetSystem() is executed.
+
+ @retval EFI_SUCCESS The reset notification function was
successfully registered.
+ @retval EFI_INVALID_PARAMETER ResetFunction is NULL.
+ @retval EFI_OUT_OF_RESOURCES There are not enough resources available to
register the reset notification function.
+ @retval EFI_ALREADY_STARTED The reset notification function specified by
ResetFunction has already been registered.
+
+**/
+EFI_STATUS
+EFIAPI
+RegisterResetNotify (
+ IN EFI_RESET_NOTIFICATION_PROTOCOL *This,
+ IN EFI_RESET_SYSTEM ResetFunction
+ )
+{
+ RESET_NOTIFICATION_INSTANCE *Instance;
+ LIST_ENTRY *Link;
+ RESET_NOTIFY_ENTRY *Entry;
+
+ if (ResetFunction == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Instance = RESET_NOTIFICATION_INSTANCE_FROM_THIS (This);
+
+ for ( Link = GetFirstNode (&Instance->ResetNotifies)
+ ; !IsNull (&Instance->ResetNotifies, Link)
+ ; Link = GetNextNode (&Instance->ResetNotifies, Link)
+ ) {
+ Entry = RESET_NOTIFY_ENTRY_FROM_LINK (Link);
+ if (Entry->ResetNotify == ResetFunction) {
+ return EFI_ALREADY_STARTED;
+ }
+ }
+
+ ASSERT (IsNull (&Instance->ResetNotifies, Link));
+ Entry = AllocatePool (sizeof (*Entry));
+ if (Entry == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+ Entry->Signature = RESET_NOTIFY_ENTRY_SIGNATURE;
+ Entry->ResetNotify = ResetFunction;
+ InsertTailList (&Instance->ResetNotifies, &Entry->Link);
+ return EFI_SUCCESS;
+}
+
+/**
+ Unregister a notification function.
+
+ The UnregisterResetNotify() function removes the previously registered
+ notification using RegisterResetNotify().
+
+ @param[in] This A pointer to the
EFI_RESET_NOTIFICATION_PROTOCOL instance.
+ @param[in] ResetFunction The pointer to the ResetFunction being
unregistered.
+
+ @retval EFI_SUCCESS The reset notification function was
unregistered.
+ @retval EFI_INVALID_PARAMETER ResetFunction is NULL.
+ @retval EFI_INVALID_PARAMETER The reset notification function specified by
ResetFunction was not previously
+ registered using RegisterResetNotify().
+
+**/
+EFI_STATUS
+EFIAPI
+UnregisterResetNotify (
+ IN EFI_RESET_NOTIFICATION_PROTOCOL *This,
+ IN EFI_RESET_SYSTEM ResetFunction
+ )
+{
+ RESET_NOTIFICATION_INSTANCE *Instance;
+ LIST_ENTRY *Link;
+ RESET_NOTIFY_ENTRY *Entry;
+
+ if (ResetFunction == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Instance = RESET_NOTIFICATION_INSTANCE_FROM_THIS (This);
+
+ for ( Link = GetFirstNode (&Instance->ResetNotifies)
+ ; !IsNull (&Instance->ResetNotifies, Link)
+ ; Link = GetNextNode (&Instance->ResetNotifies, Link)
+ ) {
+ Entry = RESET_NOTIFY_ENTRY_FROM_LINK (Link);
+ if (Entry->ResetNotify == ResetFunction) {
+ RemoveEntryList (&Entry->Link);
+ FreePool (Entry);
+ return EFI_SUCCESS;
+ }
+ }
+
+ return EFI_INVALID_PARAMETER;
+}
+
+RESET_NOTIFICATION_INSTANCE mResetNotification = {
+ RESET_NOTIFICATION_INSTANCE_SIGNATURE,
+ {
+ RegisterResetNotify,
+ UnregisterResetNotify
+ },
+ INITIALIZE_LIST_HEAD_VARIABLE (mResetNotification.ResetNotifies)
+};
+
+/**
The driver's entry point.
It initializes the Reset Architectural Protocol.
@@ -53,8 +168,8 @@ InitializeResetSystem (
Handle = NULL;
Status = gBS->InstallMultipleProtocolInterfaces (
&Handle,
- &gEfiResetArchProtocolGuid,
- NULL,
+ &gEfiResetArchProtocolGuid, NULL,
+ &gEfiResetNotificationProtocolGuid,
&mResetNotification.ResetNotification,
NULL
);
ASSERT_EFI_ERROR (Status);
@@ -102,15 +217,27 @@ ResetSystem (
IN VOID *ResetData OPTIONAL
)
{
- EFI_STATUS Status;
- UINTN Size;
- UINTN CapsuleDataPtr;
+ EFI_STATUS Status;
+ UINTN Size;
+ UINTN CapsuleDataPtr;
+ LIST_ENTRY *Link;
+ RESET_NOTIFY_ENTRY *Entry;
//
// Indicate reset system runtime service is called.
//
REPORT_STATUS_CODE (EFI_PROGRESS_CODE, (EFI_SOFTWARE_EFI_RUNTIME_SERVICE |
EFI_SW_RS_PC_RESET_SYSTEM));
+ if (!EfiAtRuntime ()) {
+ for ( Link = GetFirstNode (&mResetNotification.ResetNotifies)
+ ; !IsNull (&mResetNotification.ResetNotifies, Link)
+ ; Link = GetNextNode (&mResetNotification.ResetNotifies, Link)
+ ) {
+ Entry = RESET_NOTIFY_ENTRY_FROM_LINK (Link);
+ Entry->ResetNotify (ResetType, ResetStatus, DataSize, ResetData);
+ }
+ }
+
switch (ResetType) {
case EfiResetWarm:
diff --git a/MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystem.h
b/MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystem.h
index c3a2a7f127..73e657d4e0 100644
--- a/MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystem.h
+++ b/MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystem.h
@@ -1,6 +1,6 @@
/** @file
- Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2006 - 2017, 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
@@ -19,6 +19,7 @@
#include <PiDxe.h>
#include <Protocol/Reset.h>
+#include <Protocol/ResetNotification.h>
#include <Guid/CapsuleVendor.h>
#include <Library/BaseLib.h>
@@ -31,6 +32,24 @@
#include <Library/UefiRuntimeServicesTableLib.h>
#include <Library/ResetSystemLib.h>
#include <Library/ReportStatusCodeLib.h>
+#include <Library/MemoryAllocationLib.h>
+
+typedef struct {
+ UINT32 Signature;
+ LIST_ENTRY Link;
+ EFI_RESET_SYSTEM ResetNotify;
+} RESET_NOTIFY_ENTRY;
+#define RESET_NOTIFY_ENTRY_SIGNATURE SIGNATURE_32('r', 's', 't', 'n')
+#define RESET_NOTIFY_ENTRY_FROM_LINK(a) CR (a, RESET_NOTIFY_ENTRY, Link,
RESET_NOTIFY_ENTRY_SIGNATURE)
+
+typedef struct {
+ UINT32 Signature;
+ EFI_RESET_NOTIFICATION_PROTOCOL ResetNotification;
+ LIST_ENTRY ResetNotifies;
+} RESET_NOTIFICATION_INSTANCE;
+#define RESET_NOTIFICATION_INSTANCE_SIGNATURE SIGNATURE_32('r', 's', 't',
'i')
+#define RESET_NOTIFICATION_INSTANCE_FROM_THIS(a) \
+ CR (a, RESET_NOTIFICATION_INSTANCE, ResetNotification,
RESET_NOTIFICATION_INSTANCE_SIGNATURE)
/**
The driver's entry point.
diff --git
a/MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystemRuntimeDxe.inf
b/MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystemRuntimeDxe.inf
index 7ef52b3283..e63dc4467a 100644
--- a/MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystemRuntimeDxe.inf
+++ b/MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystemRuntimeDxe.inf
@@ -1,7 +1,7 @@
## @file
# This driver implements Reset Architectural Protocol.
#
-# Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2006 - 2017, 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
@@ -48,7 +48,7 @@ [LibraryClasses]
DebugLib
BaseLib
ReportStatusCodeLib
-
+ MemoryAllocationLib
[Guids]
gEfiCapsuleVendorGuid ## SOMETIMES_CONSUMES ##
Variable:L"CapsuleUpdateData"
@@ -56,6 +56,7 @@ [Guids]
[Protocols]
gEfiResetArchProtocolGuid ## PRODUCES
+ gEfiResetNotificationProtocolGuid ## PRODUCES
[Depex]
--
2.12.2.windows.2
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