[mirror_edk2.git] / MdeModulePkg / Universal / ResetSystemRuntimeDxe / ResetSystem.c

/** @file\r
  Reset Architectural and Reset Notification protocols implementation.\r
\r
  Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>\r
\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include "ResetSystem.h"\r
\r
GLOBAL_REMOVE_IF_UNREFERENCED CHAR16  *mResetTypeStr[] = {\r
  L"Cold", L"Warm", L"Shutdown", L"PlatformSpecific"\r
};\r
\r
//\r
// The current ResetSystem() notification recursion depth\r
//\r
UINTN  mResetNotifyDepth = 0;\r
\r
/**\r
  Register a notification function to be called when ResetSystem() is called.\r
\r
  The RegisterResetNotify() function registers a notification function that is called when\r
  ResetSystem()is called and prior to completing the reset of the platform.\r
  The registered functions must not perform a platform reset themselves. These\r
  notifications are intended only for the notification of components which may need some\r
  special-purpose maintenance prior to the platform resetting.\r
  The list of registered reset notification functions are processed if ResetSystem()is called\r
  before ExitBootServices(). The list of registered reset notification functions is ignored if\r
  ResetSystem()is called after ExitBootServices().\r
\r
  @param[in]  This              A pointer to the EFI_RESET_NOTIFICATION_PROTOCOL instance.\r
  @param[in]  ResetFunction     Points to the function to be called when a ResetSystem() is executed.\r
\r
  @retval EFI_SUCCESS           The reset notification function was successfully registered.\r
  @retval EFI_INVALID_PARAMETER ResetFunction is NULL.\r
  @retval EFI_OUT_OF_RESOURCES  There are not enough resources available to register the reset notification function.\r
  @retval EFI_ALREADY_STARTED   The reset notification function specified by ResetFunction has already been registered.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
RegisterResetNotify (\r
  IN EFI_RESET_NOTIFICATION_PROTOCOL  *This,\r
  IN EFI_RESET_SYSTEM                 ResetFunction\r
  )\r
{\r
  RESET_NOTIFICATION_INSTANCE  *Instance;\r
  LIST_ENTRY                   *Link;\r
  RESET_NOTIFY_ENTRY           *Entry;\r
\r
  if (ResetFunction == NULL) {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  Instance = RESET_NOTIFICATION_INSTANCE_FROM_THIS (This);\r
\r
  for ( Link = GetFirstNode (&Instance->ResetNotifies)\r
        ; !IsNull (&Instance->ResetNotifies, Link)\r
        ; Link = GetNextNode (&Instance->ResetNotifies, Link)\r
        )\r
  {\r
    Entry = RESET_NOTIFY_ENTRY_FROM_LINK (Link);\r
    if (Entry->ResetNotify == ResetFunction) {\r
      return EFI_ALREADY_STARTED;\r
    }\r
  }\r
\r
  ASSERT (IsNull (&Instance->ResetNotifies, Link));\r
  Entry = AllocatePool (sizeof (*Entry));\r
  if (Entry == NULL) {\r
    return EFI_OUT_OF_RESOURCES;\r
  }\r
\r
  Entry->Signature   = RESET_NOTIFY_ENTRY_SIGNATURE;\r
  Entry->ResetNotify = ResetFunction;\r
  InsertTailList (&Instance->ResetNotifies, &Entry->Link);\r
  return EFI_SUCCESS;\r
}\r
\r
/**\r
  Unregister a notification function.\r
\r
  The UnregisterResetNotify() function removes the previously registered\r
  notification using RegisterResetNotify().\r
\r
  @param[in]  This              A pointer to the EFI_RESET_NOTIFICATION_PROTOCOL instance.\r
  @param[in]  ResetFunction     The pointer to the ResetFunction being unregistered.\r
\r
  @retval EFI_SUCCESS           The reset notification function was unregistered.\r
  @retval EFI_INVALID_PARAMETER ResetFunction is NULL.\r
  @retval EFI_INVALID_PARAMETER The reset notification function specified by ResetFunction was not previously\r
                                registered using RegisterResetNotify().\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
UnregisterResetNotify (\r
  IN EFI_RESET_NOTIFICATION_PROTOCOL  *This,\r
  IN EFI_RESET_SYSTEM                 ResetFunction\r
  )\r
{\r
  RESET_NOTIFICATION_INSTANCE  *Instance;\r
  LIST_ENTRY                   *Link;\r
  RESET_NOTIFY_ENTRY           *Entry;\r
\r
  if (ResetFunction == NULL) {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  Instance = RESET_NOTIFICATION_INSTANCE_FROM_THIS (This);\r
\r
  for ( Link = GetFirstNode (&Instance->ResetNotifies)\r
        ; !IsNull (&Instance->ResetNotifies, Link)\r
        ; Link = GetNextNode (&Instance->ResetNotifies, Link)\r
        )\r
  {\r
    Entry = RESET_NOTIFY_ENTRY_FROM_LINK (Link);\r
    if (Entry->ResetNotify == ResetFunction) {\r
      RemoveEntryList (&Entry->Link);\r
      FreePool (Entry);\r
      return EFI_SUCCESS;\r
    }\r
  }\r
\r
  return EFI_INVALID_PARAMETER;\r
}\r
\r
RESET_NOTIFICATION_INSTANCE  mResetNotification = {\r
  RESET_NOTIFICATION_INSTANCE_SIGNATURE,\r
  {\r
    RegisterResetNotify,\r
    UnregisterResetNotify\r
  },\r
  INITIALIZE_LIST_HEAD_VARIABLE (mResetNotification.ResetNotifies)\r
};\r
\r
RESET_NOTIFICATION_INSTANCE  mPlatformSpecificResetFilter = {\r
  RESET_NOTIFICATION_INSTANCE_SIGNATURE,\r
  {\r
    RegisterResetNotify,\r
    UnregisterResetNotify\r
  },\r
  INITIALIZE_LIST_HEAD_VARIABLE (mPlatformSpecificResetFilter.ResetNotifies)\r
};\r
\r
RESET_NOTIFICATION_INSTANCE  mPlatformSpecificResetHandler = {\r
  RESET_NOTIFICATION_INSTANCE_SIGNATURE,\r
  {\r
    RegisterResetNotify,\r
    UnregisterResetNotify\r
  },\r
  INITIALIZE_LIST_HEAD_VARIABLE (mPlatformSpecificResetHandler.ResetNotifies)\r
};\r
\r
/**\r
  The driver's entry point.\r
\r
  It initializes the Reset Architectural Protocol.\r
\r
  @param[in] ImageHandle  The firmware allocated handle for the EFI image.\r
  @param[in] SystemTable  A pointer to the EFI System Table.\r
\r
  @retval EFI_SUCCESS     The entry point is executed successfully.\r
  @retval other           Cannot install ResetArch protocol.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
InitializeResetSystem (\r
  IN EFI_HANDLE        ImageHandle,\r
  IN EFI_SYSTEM_TABLE  *SystemTable\r
  )\r
{\r
  EFI_STATUS  Status;\r
  EFI_HANDLE  Handle;\r
\r
  //\r
  // Make sure the Reset Architectural Protocol is not already installed in the system\r
  //\r
  ASSERT_PROTOCOL_ALREADY_INSTALLED (NULL, &gEfiResetArchProtocolGuid);\r
\r
  //\r
  // Hook the runtime service table\r
  //\r
  gRT->ResetSystem = RuntimeServiceResetSystem;\r
\r
  //\r
  // Now install the Reset RT AP on a new handle\r
  //\r
  Handle = NULL;\r
  Status = gBS->InstallMultipleProtocolInterfaces (\r
                  &Handle,\r
                  &gEfiResetArchProtocolGuid,\r
                  NULL,\r
                  &gEfiResetNotificationProtocolGuid,\r
                  &mResetNotification.ResetNotification,\r
                  &gEdkiiPlatformSpecificResetFilterProtocolGuid,\r
                  &mPlatformSpecificResetFilter.ResetNotification,\r
                  &gEdkiiPlatformSpecificResetHandlerProtocolGuid,\r
                  &mPlatformSpecificResetHandler.ResetNotification,\r
                  NULL\r
                  );\r
  ASSERT_EFI_ERROR (Status);\r
\r
  return Status;\r
}\r
\r
/**\r
  Resets the entire platform.\r
\r
  @param[in] ResetType          The type of reset to perform.\r
  @param[in] ResetStatus        The status code for the reset.\r
  @param[in] DataSize           The size, in bytes, of ResetData.\r
  @param[in] ResetData          For a ResetType of EfiResetCold, EfiResetWarm, or\r
                                EfiResetShutdown the data buffer starts with a Null-terminated\r
                                string, optionally followed by additional binary data.\r
                                The string is a description that the caller may use to further\r
                                indicate the reason for the system reset.\r
                                For a ResetType of EfiResetPlatformSpecific the data buffer\r
                                also starts with a Null-terminated string that is followed\r
                                by an EFI_GUID that describes the specific type of reset to perform.\r
**/\r
VOID\r
EFIAPI\r
RuntimeServiceResetSystem (\r
  IN EFI_RESET_TYPE  ResetType,\r
  IN EFI_STATUS      ResetStatus,\r
  IN UINTN           DataSize,\r
  IN VOID            *ResetData OPTIONAL\r
  )\r
{\r
  LIST_ENTRY          *Link;\r
  RESET_NOTIFY_ENTRY  *Entry;\r
\r
  //\r
  // Only do REPORT_STATUS_CODE() on first call to RuntimeServiceResetSystem()\r
  //\r
  if (mResetNotifyDepth == 0) {\r
    //\r
    // Indicate reset system runtime service is called.\r
    //\r
    REPORT_STATUS_CODE (EFI_PROGRESS_CODE, (EFI_SOFTWARE_EFI_RUNTIME_SERVICE | EFI_SW_RS_PC_RESET_SYSTEM));\r
  }\r
\r
  mResetNotifyDepth++;\r
  DEBUG ((\r
    DEBUG_INFO,\r
    "DXE ResetSystem2: ResetType %s, Call Depth = %d.\n",\r
    mResetTypeStr[ResetType],\r
    mResetNotifyDepth\r
    ));\r
\r
  if (mResetNotifyDepth <= MAX_RESET_NOTIFY_DEPTH) {\r
    if (!EfiAtRuntime ()) {\r
      //\r
      // Call reset notification functions registered through the\r
      // EDKII_PLATFORM_SPECIFIC_RESET_FILTER_PROTOCOL.\r
      //\r
      for ( Link = GetFirstNode (&mPlatformSpecificResetFilter.ResetNotifies)\r
            ; !IsNull (&mPlatformSpecificResetFilter.ResetNotifies, Link)\r
            ; Link = GetNextNode (&mPlatformSpecificResetFilter.ResetNotifies, Link)\r
            )\r
      {\r
        Entry = RESET_NOTIFY_ENTRY_FROM_LINK (Link);\r
        Entry->ResetNotify (ResetType, ResetStatus, DataSize, ResetData);\r
      }\r
\r
      //\r
      // Call reset notification functions registered through the\r
      // EFI_RESET_NOTIFICATION_PROTOCOL.\r
      //\r
      for ( Link = GetFirstNode (&mResetNotification.ResetNotifies)\r
            ; !IsNull (&mResetNotification.ResetNotifies, Link)\r
            ; Link = GetNextNode (&mResetNotification.ResetNotifies, Link)\r
            )\r
      {\r
        Entry = RESET_NOTIFY_ENTRY_FROM_LINK (Link);\r
        Entry->ResetNotify (ResetType, ResetStatus, DataSize, ResetData);\r
      }\r
\r
      //\r
      // call reset notification functions registered through the\r
      // EDKII_PLATFORM_SPECIFIC_RESET_HANDLER_PROTOCOL.\r
      //\r
      for ( Link = GetFirstNode (&mPlatformSpecificResetHandler.ResetNotifies)\r
            ; !IsNull (&mPlatformSpecificResetHandler.ResetNotifies, Link)\r
            ; Link = GetNextNode (&mPlatformSpecificResetHandler.ResetNotifies, Link)\r
            )\r
      {\r
        Entry = RESET_NOTIFY_ENTRY_FROM_LINK (Link);\r
        Entry->ResetNotify (ResetType, ResetStatus, DataSize, ResetData);\r
      }\r
    }\r
  } else {\r
    ASSERT (ResetType < ARRAY_SIZE (mResetTypeStr));\r
    DEBUG ((DEBUG_ERROR, "DXE ResetSystem2: Maximum reset call depth is met. Use the current reset type: %s!\n", mResetTypeStr[ResetType]));\r
  }\r
\r
  switch (ResetType) {\r
    case EfiResetWarm:\r
\r
      ResetWarm ();\r
      break;\r
\r
    case EfiResetCold:\r
      ResetCold ();\r
      break;\r
\r
    case EfiResetShutdown:\r
      ResetShutdown ();\r
      return;\r
\r
    case EfiResetPlatformSpecific:\r
      ResetPlatformSpecific (DataSize, ResetData);\r
      return;\r
\r
    default:\r
      return;\r
  }\r
\r
  //\r
  // Given we should have reset getting here would be bad\r
  //\r
  ASSERT (FALSE);\r
}\r
Commit	Line	Data
51a0c5f2	1	/** @file\r
cf6da556	2	Reset Architectural and Reset Notification protocols implementation.\r
51a0c5f2	3	\r
e2531da3	4	Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>\r
51a0c5f2	5	\r
9d510e61	6	SPDX-License-Identifier: BSD-2-Clause-Patent\r
51a0c5f2	7	\r
	8	**/\r
	9	\r
	10	#include "ResetSystem.h"\r
	11	\r
1436aea4	12	GLOBAL_REMOVE_IF_UNREFERENCED CHAR16 *mResetTypeStr[] = {\r
4bf95a9f RN	13	L"Cold", L"Warm", L"Shutdown", L"PlatformSpecific"\r
	14	};\r
	15	\r
99a6529e MK	16	//\r
	17	// The current ResetSystem() notification recursion depth\r
	18	//\r
	19	UINTN mResetNotifyDepth = 0;\r
	20	\r
cf6da556 RN	21	/**\r
	22	Register a notification function to be called when ResetSystem() is called.\r
	23	\r
	24	The RegisterResetNotify() function registers a notification function that is called when\r
	25	ResetSystem()is called and prior to completing the reset of the platform.\r
	26	The registered functions must not perform a platform reset themselves. These\r
	27	notifications are intended only for the notification of components which may need some\r
	28	special-purpose maintenance prior to the platform resetting.\r
	29	The list of registered reset notification functions are processed if ResetSystem()is called\r
	30	before ExitBootServices(). The list of registered reset notification functions is ignored if\r
	31	ResetSystem()is called after ExitBootServices().\r
	32	\r
	33	@param[in] This A pointer to the EFI_RESET_NOTIFICATION_PROTOCOL instance.\r
	34	@param[in] ResetFunction Points to the function to be called when a ResetSystem() is executed.\r
	35	\r
	36	@retval EFI_SUCCESS The reset notification function was successfully registered.\r
	37	@retval EFI_INVALID_PARAMETER ResetFunction is NULL.\r
	38	@retval EFI_OUT_OF_RESOURCES There are not enough resources available to register the reset notification function.\r
	39	@retval EFI_ALREADY_STARTED The reset notification function specified by ResetFunction has already been registered.\r
	40	\r
	41	**/\r
	42	EFI_STATUS\r
	43	EFIAPI\r
	44	RegisterResetNotify (\r
1436aea4 MK	45	IN EFI_RESET_NOTIFICATION_PROTOCOL *This,\r
1436aea4 MK	46	IN EFI_RESET_SYSTEM ResetFunction\r
cf6da556 RN	47	)\r
cf6da556 RN	48	{\r
1436aea4 MK	49	RESET_NOTIFICATION_INSTANCE *Instance;\r
	50	LIST_ENTRY *Link;\r
	51	RESET_NOTIFY_ENTRY *Entry;\r
cf6da556 RN	52	\r
	53	if (ResetFunction == NULL) {\r
	54	return EFI_INVALID_PARAMETER;\r
	55	}\r
	56	\r
	57	Instance = RESET_NOTIFICATION_INSTANCE_FROM_THIS (This);\r
	58	\r
	59	for ( Link = GetFirstNode (&Instance->ResetNotifies)\r
1436aea4 MK	60	; !IsNull (&Instance->ResetNotifies, Link)\r
	61	; Link = GetNextNode (&Instance->ResetNotifies, Link)\r
	62	)\r
	63	{\r
cf6da556 RN	64	Entry = RESET_NOTIFY_ENTRY_FROM_LINK (Link);\r
	65	if (Entry->ResetNotify == ResetFunction) {\r
	66	return EFI_ALREADY_STARTED;\r
	67	}\r
	68	}\r
	69	\r
	70	ASSERT (IsNull (&Instance->ResetNotifies, Link));\r
	71	Entry = AllocatePool (sizeof (*Entry));\r
	72	if (Entry == NULL) {\r
	73	return EFI_OUT_OF_RESOURCES;\r
	74	}\r
1436aea4	75	\r
cf6da556 RN	76	Entry->Signature = RESET_NOTIFY_ENTRY_SIGNATURE;\r
	77	Entry->ResetNotify = ResetFunction;\r
	78	InsertTailList (&Instance->ResetNotifies, &Entry->Link);\r
	79	return EFI_SUCCESS;\r
	80	}\r
	81	\r
	82	/**\r
	83	Unregister a notification function.\r
	84	\r
	85	The UnregisterResetNotify() function removes the previously registered\r
	86	notification using RegisterResetNotify().\r
	87	\r
	88	@param[in] This A pointer to the EFI_RESET_NOTIFICATION_PROTOCOL instance.\r
	89	@param[in] ResetFunction The pointer to the ResetFunction being unregistered.\r
	90	\r
	91	@retval EFI_SUCCESS The reset notification function was unregistered.\r
	92	@retval EFI_INVALID_PARAMETER ResetFunction is NULL.\r
	93	@retval EFI_INVALID_PARAMETER The reset notification function specified by ResetFunction was not previously\r
	94	registered using RegisterResetNotify().\r
	95	\r
	96	**/\r
	97	EFI_STATUS\r
	98	EFIAPI\r
	99	UnregisterResetNotify (\r
1436aea4 MK	100	IN EFI_RESET_NOTIFICATION_PROTOCOL *This,\r
1436aea4 MK	101	IN EFI_RESET_SYSTEM ResetFunction\r
cf6da556 RN	102	)\r
cf6da556 RN	103	{\r
1436aea4 MK	104	RESET_NOTIFICATION_INSTANCE *Instance;\r
	105	LIST_ENTRY *Link;\r
	106	RESET_NOTIFY_ENTRY *Entry;\r
cf6da556 RN	107	\r
	108	if (ResetFunction == NULL) {\r
	109	return EFI_INVALID_PARAMETER;\r
	110	}\r
	111	\r
	112	Instance = RESET_NOTIFICATION_INSTANCE_FROM_THIS (This);\r
	113	\r
	114	for ( Link = GetFirstNode (&Instance->ResetNotifies)\r
1436aea4 MK	115	; !IsNull (&Instance->ResetNotifies, Link)\r
	116	; Link = GetNextNode (&Instance->ResetNotifies, Link)\r
	117	)\r
	118	{\r
cf6da556 RN	119	Entry = RESET_NOTIFY_ENTRY_FROM_LINK (Link);\r
	120	if (Entry->ResetNotify == ResetFunction) {\r
	121	RemoveEntryList (&Entry->Link);\r
	122	FreePool (Entry);\r
	123	return EFI_SUCCESS;\r
	124	}\r
	125	}\r
	126	\r
	127	return EFI_INVALID_PARAMETER;\r
	128	}\r
	129	\r
1436aea4	130	RESET_NOTIFICATION_INSTANCE mResetNotification = {\r
cf6da556 RN	131	RESET_NOTIFICATION_INSTANCE_SIGNATURE,\r
	132	{\r
	133	RegisterResetNotify,\r
	134	UnregisterResetNotify\r
	135	},\r
	136	INITIALIZE_LIST_HEAD_VARIABLE (mResetNotification.ResetNotifies)\r
	137	};\r
	138	\r
1436aea4	139	RESET_NOTIFICATION_INSTANCE mPlatformSpecificResetFilter = {\r
99a6529e MK	140	RESET_NOTIFICATION_INSTANCE_SIGNATURE,\r
	141	{\r
	142	RegisterResetNotify,\r
	143	UnregisterResetNotify\r
	144	},\r
	145	INITIALIZE_LIST_HEAD_VARIABLE (mPlatformSpecificResetFilter.ResetNotifies)\r
	146	};\r
	147	\r
1436aea4	148	RESET_NOTIFICATION_INSTANCE mPlatformSpecificResetHandler = {\r
99a6529e MK	149	RESET_NOTIFICATION_INSTANCE_SIGNATURE,\r
	150	{\r
	151	RegisterResetNotify,\r
	152	UnregisterResetNotify\r
	153	},\r
	154	INITIALIZE_LIST_HEAD_VARIABLE (mPlatformSpecificResetHandler.ResetNotifies)\r
	155	};\r
	156	\r
51a0c5f2	157	/**\r
	158	The driver's entry point.\r
	159	\r
	160	It initializes the Reset Architectural Protocol.\r
	161	\r
d1102dba	162	@param[in] ImageHandle The firmware allocated handle for the EFI image.\r
51a0c5f2	163	@param[in] SystemTable A pointer to the EFI System Table.\r
d1102dba	164	\r
51a0c5f2	165	@retval EFI_SUCCESS The entry point is executed successfully.\r
	166	@retval other Cannot install ResetArch protocol.\r
	167	\r
	168	**/\r
	169	EFI_STATUS\r
	170	EFIAPI\r
	171	InitializeResetSystem (\r
	172	IN EFI_HANDLE ImageHandle,\r
	173	IN EFI_SYSTEM_TABLE *SystemTable\r
	174	)\r
	175	{\r
	176	EFI_STATUS Status;\r
34861f43	177	EFI_HANDLE Handle;\r
51a0c5f2	178	\r
	179	//\r
	180	// Make sure the Reset Architectural Protocol is not already installed in the system\r
	181	//\r
	182	ASSERT_PROTOCOL_ALREADY_INSTALLED (NULL, &gEfiResetArchProtocolGuid);\r
	183	\r
	184	//\r
	185	// Hook the runtime service table\r
	186	//\r
e2531da3	187	gRT->ResetSystem = RuntimeServiceResetSystem;\r
51a0c5f2	188	\r
	189	//\r
	190	// Now install the Reset RT AP on a new handle\r
	191	//\r
34861f43	192	Handle = NULL;\r
51a0c5f2	193	Status = gBS->InstallMultipleProtocolInterfaces (\r
34861f43	194	&Handle,\r
1436aea4 MK	195	&gEfiResetArchProtocolGuid,\r
	196	NULL,\r
	197	&gEfiResetNotificationProtocolGuid,\r
	198	&mResetNotification.ResetNotification,\r
	199	&gEdkiiPlatformSpecificResetFilterProtocolGuid,\r
	200	&mPlatformSpecificResetFilter.ResetNotification,\r
	201	&gEdkiiPlatformSpecificResetHandlerProtocolGuid,\r
	202	&mPlatformSpecificResetHandler.ResetNotification,\r
51a0c5f2	203	NULL\r
	204	);\r
	205	ASSERT_EFI_ERROR (Status);\r
	206	\r
	207	return Status;\r
	208	}\r
	209	\r
51a0c5f2	210	/**\r
	211	Resets the entire platform.\r
	212	\r
	213	@param[in] ResetType The type of reset to perform.\r
	214	@param[in] ResetStatus The status code for the reset.\r
37078045	215	@param[in] DataSize The size, in bytes, of ResetData.\r
51a0c5f2	216	@param[in] ResetData For a ResetType of EfiResetCold, EfiResetWarm, or\r
	217	EfiResetShutdown the data buffer starts with a Null-terminated\r
	218	string, optionally followed by additional binary data.\r
37078045	219	The string is a description that the caller may use to further\r
f69cb108	220	indicate the reason for the system reset.\r
eeeabe40 SZ	221	For a ResetType of EfiResetPlatformSpecific the data buffer\r
	222	also starts with a Null-terminated string that is followed\r
	223	by an EFI_GUID that describes the specific type of reset to perform.\r
51a0c5f2	224	**/\r
	225	VOID\r
	226	EFIAPI\r
e2531da3	227	RuntimeServiceResetSystem (\r
1436aea4 MK	228	IN EFI_RESET_TYPE ResetType,\r
	229	IN EFI_STATUS ResetStatus,\r
	230	IN UINTN DataSize,\r
	231	IN VOID *ResetData OPTIONAL\r
51a0c5f2	232	)\r
51a0c5f2	233	{\r
cf6da556 RN	234	LIST_ENTRY *Link;\r
cf6da556 RN	235	RESET_NOTIFY_ENTRY *Entry;\r
99a6529e	236	\r
37623a5c	237	//\r
e2531da3	238	// Only do REPORT_STATUS_CODE() on first call to RuntimeServiceResetSystem()\r
37623a5c	239	//\r
99a6529e MK	240	if (mResetNotifyDepth == 0) {\r
	241	//\r
	242	// Indicate reset system runtime service is called.\r
	243	//\r
	244	REPORT_STATUS_CODE (EFI_PROGRESS_CODE, (EFI_SOFTWARE_EFI_RUNTIME_SERVICE \| EFI_SW_RS_PC_RESET_SYSTEM));\r
	245	}\r
51a0c5f2	246	\r
99a6529e	247	mResetNotifyDepth++;\r
9c227e07	248	DEBUG ((\r
1436aea4 MK	249	DEBUG_INFO,\r
	250	"DXE ResetSystem2: ResetType %s, Call Depth = %d.\n",\r
	251	mResetTypeStr[ResetType],\r
	252	mResetNotifyDepth\r
9c227e07	253	));\r
4bf95a9f RN	254	\r
	255	if (mResetNotifyDepth <= MAX_RESET_NOTIFY_DEPTH) {\r
	256	if (!EfiAtRuntime ()) {\r
	257	//\r
	258	// Call reset notification functions registered through the\r
	259	// EDKII_PLATFORM_SPECIFIC_RESET_FILTER_PROTOCOL.\r
	260	//\r
	261	for ( Link = GetFirstNode (&mPlatformSpecificResetFilter.ResetNotifies)\r
1436aea4 MK	262	; !IsNull (&mPlatformSpecificResetFilter.ResetNotifies, Link)\r
	263	; Link = GetNextNode (&mPlatformSpecificResetFilter.ResetNotifies, Link)\r
	264	)\r
	265	{\r
4bf95a9f RN	266	Entry = RESET_NOTIFY_ENTRY_FROM_LINK (Link);\r
	267	Entry->ResetNotify (ResetType, ResetStatus, DataSize, ResetData);\r
	268	}\r
1436aea4	269	\r
4bf95a9f RN	270	//\r
	271	// Call reset notification functions registered through the\r
	272	// EFI_RESET_NOTIFICATION_PROTOCOL.\r
	273	//\r
	274	for ( Link = GetFirstNode (&mResetNotification.ResetNotifies)\r
1436aea4 MK	275	; !IsNull (&mResetNotification.ResetNotifies, Link)\r
	276	; Link = GetNextNode (&mResetNotification.ResetNotifies, Link)\r
	277	)\r
	278	{\r
4bf95a9f RN	279	Entry = RESET_NOTIFY_ENTRY_FROM_LINK (Link);\r
	280	Entry->ResetNotify (ResetType, ResetStatus, DataSize, ResetData);\r
	281	}\r
1436aea4	282	\r
4bf95a9f	283	//\r
d1102dba	284	// call reset notification functions registered through the\r
4bf95a9f RN	285	// EDKII_PLATFORM_SPECIFIC_RESET_HANDLER_PROTOCOL.\r
	286	//\r
	287	for ( Link = GetFirstNode (&mPlatformSpecificResetHandler.ResetNotifies)\r
1436aea4 MK	288	; !IsNull (&mPlatformSpecificResetHandler.ResetNotifies, Link)\r
	289	; Link = GetNextNode (&mPlatformSpecificResetHandler.ResetNotifies, Link)\r
	290	)\r
	291	{\r
4bf95a9f RN	292	Entry = RESET_NOTIFY_ENTRY_FROM_LINK (Link);\r
	293	Entry->ResetNotify (ResetType, ResetStatus, DataSize, ResetData);\r
	294	}\r
cf6da556	295	}\r
4bf95a9f RN	296	} else {\r
	297	ASSERT (ResetType < ARRAY_SIZE (mResetTypeStr));\r
	298	DEBUG ((DEBUG_ERROR, "DXE ResetSystem2: Maximum reset call depth is met. Use the current reset type: %s!\n", mResetTypeStr[ResetType]));\r
cf6da556 RN	299	}\r
cf6da556 RN	300	\r
51a0c5f2	301	switch (ResetType) {\r
1436aea4	302	case EfiResetWarm:\r
51a0c5f2	303	\r
1436aea4 MK	304	ResetWarm ();\r
1436aea4 MK	305	break;\r
51a0c5f2	306	\r
1436aea4 MK	307	case EfiResetCold:\r
	308	ResetCold ();\r
	309	break;\r
51a0c5f2	310	\r
1436aea4 MK	311	case EfiResetShutdown:\r
	312	ResetShutdown ();\r
	313	return;\r
51a0c5f2	314	\r
1436aea4 MK	315	case EfiResetPlatformSpecific:\r
	316	ResetPlatformSpecific (DataSize, ResetData);\r
	317	return;\r
37078045	318	\r
1436aea4 MK	319	default:\r
1436aea4 MK	320	return;\r
51a0c5f2	321	}\r
	322	\r
	323	//\r
	324	// Given we should have reset getting here would be bad\r
	325	//\r
	326	ASSERT (FALSE);\r
	327	}\r