[mirror_edk2.git] / MdeModulePkg / Core / PiSmmCore / Pool.c

/** @file\r
  SMM Memory pool management functions.\r
\r
  Copyright (c) 2009 - 2016, Intel Corporation. All rights reserved.<BR>\r
  This program and the accompanying materials are licensed and made available \r
  under the terms and conditions of the BSD License which accompanies this \r
  distribution.  The full text of the license may be found at        \r
  http://opensource.org/licenses/bsd-license.php                                            \r
\r
  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     \r
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             \r
\r
**/\r
\r
#include "PiSmmCore.h"\r
\r
LIST_ENTRY  mSmmPoolLists[SmmPoolTypeMax][MAX_POOL_INDEX];\r
//\r
// To cache the SMRAM base since when Loading modules At fixed address feature is enabled, \r
// all module is assigned an offset relative the SMRAM base in build time.\r
//\r
GLOBAL_REMOVE_IF_UNREFERENCED  EFI_PHYSICAL_ADDRESS       gLoadModuleAtFixAddressSmramBase = 0;\r
\r
/**\r
  Convert a UEFI memory type to SMM pool type.\r
\r
  @param[in]  MemoryType              Type of pool to allocate.\r
\r
  @return SMM pool type\r
**/\r
SMM_POOL_TYPE\r
UefiMemoryTypeToSmmPoolType (\r
  IN  EFI_MEMORY_TYPE   MemoryType\r
  )\r
{\r
  ASSERT ((MemoryType == EfiRuntimeServicesCode) || (MemoryType == EfiRuntimeServicesData));\r
  switch (MemoryType) {\r
  case EfiRuntimeServicesCode:\r
    return SmmPoolTypeCode;\r
  case EfiRuntimeServicesData:\r
    return SmmPoolTypeData;\r
  default:\r
    return SmmPoolTypeMax;\r
  }\r
}\r
\r
\r
/**\r
  Called to initialize the memory service.\r
\r
  @param   SmramRangeCount       Number of SMRAM Regions\r
  @param   SmramRanges           Pointer to SMRAM Descriptors\r
\r
**/\r
VOID\r
SmmInitializeMemoryServices (\r
  IN UINTN                 SmramRangeCount,\r
  IN EFI_SMRAM_DESCRIPTOR  *SmramRanges\r
  )\r
{\r
  UINTN                  Index;\r
  EFI_STATUS             Status;\r
  UINTN                  SmmPoolTypeIndex;\r
  EFI_LOAD_FIXED_ADDRESS_CONFIGURATION_TABLE *LMFAConfigurationTable;\r
\r
  //\r
  // Initialize Pool list\r
  //\r
  for (SmmPoolTypeIndex = 0; SmmPoolTypeIndex < SmmPoolTypeMax; SmmPoolTypeIndex++) {\r
    for (Index = 0; Index < ARRAY_SIZE (mSmmPoolLists[SmmPoolTypeIndex]); Index++) {\r
      InitializeListHead (&mSmmPoolLists[SmmPoolTypeIndex][Index]);\r
    }\r
  }\r
\r
  Status = EfiGetSystemConfigurationTable (\r
            &gLoadFixedAddressConfigurationTableGuid,\r
           (VOID **) &LMFAConfigurationTable\r
           );\r
  if (!EFI_ERROR (Status) && LMFAConfigurationTable != NULL) {\r
    gLoadModuleAtFixAddressSmramBase = LMFAConfigurationTable->SmramBase;\r
  }\r
\r
  //\r
  // Add Free SMRAM regions\r
  // Need add Free memory at first, to let gSmmMemoryMap record data\r
  //\r
  for (Index = 0; Index < SmramRangeCount; Index++) {\r
    if ((SmramRanges[Index].RegionState & (EFI_ALLOCATED | EFI_NEEDS_TESTING | EFI_NEEDS_ECC_INITIALIZATION)) != 0) {\r
      continue;\r
    }\r
    SmmAddMemoryRegion (\r
      SmramRanges[Index].CpuStart,\r
      SmramRanges[Index].PhysicalSize,\r
      EfiConventionalMemory,\r
      SmramRanges[Index].RegionState\r
      );\r
  }\r
\r
  //\r
  // Add the allocated SMRAM regions\r
  //\r
  for (Index = 0; Index < SmramRangeCount; Index++) {\r
    if ((SmramRanges[Index].RegionState & (EFI_ALLOCATED | EFI_NEEDS_TESTING | EFI_NEEDS_ECC_INITIALIZATION)) == 0) {\r
      continue;\r
    }\r
    SmmAddMemoryRegion (\r
      SmramRanges[Index].CpuStart,\r
      SmramRanges[Index].PhysicalSize,\r
      EfiConventionalMemory,\r
      SmramRanges[Index].RegionState\r
      );\r
  }\r
\r
}\r
\r
/**\r
  Internal Function. Allocate a pool by specified PoolIndex.\r
\r
  @param  PoolType              Type of pool to allocate.\r
  @param  PoolIndex             Index which indicate the Pool size.\r
  @param  FreePoolHdr           The returned Free pool.\r
\r
  @retval EFI_OUT_OF_RESOURCES   Allocation failed.\r
  @retval EFI_SUCCESS            Pool successfully allocated.\r
\r
**/\r
EFI_STATUS\r
InternalAllocPoolByIndex (\r
  IN  EFI_MEMORY_TYPE   PoolType,\r
  IN  UINTN             PoolIndex,\r
  OUT FREE_POOL_HEADER  **FreePoolHdr\r
  )\r
{\r
  EFI_STATUS            Status;\r
  FREE_POOL_HEADER      *Hdr;\r
  EFI_PHYSICAL_ADDRESS  Address;\r
  SMM_POOL_TYPE         SmmPoolType;\r
\r
  SmmPoolType = UefiMemoryTypeToSmmPoolType(PoolType);\r
\r
  ASSERT (PoolIndex <= MAX_POOL_INDEX);\r
  Status = EFI_SUCCESS;\r
  Hdr = NULL;\r
  if (PoolIndex == MAX_POOL_INDEX) {\r
    Status = SmmInternalAllocatePages (AllocateAnyPages, PoolType, EFI_SIZE_TO_PAGES (MAX_POOL_SIZE << 1), &Address);\r
    if (EFI_ERROR (Status)) {\r
      return EFI_OUT_OF_RESOURCES;\r
    }\r
    Hdr = (FREE_POOL_HEADER *) (UINTN) Address;\r
  } else if (!IsListEmpty (&mSmmPoolLists[SmmPoolType][PoolIndex])) {\r
    Hdr = BASE_CR (GetFirstNode (&mSmmPoolLists[SmmPoolType][PoolIndex]), FREE_POOL_HEADER, Link);\r
    RemoveEntryList (&Hdr->Link);\r
  } else {\r
    Status = InternalAllocPoolByIndex (PoolType, PoolIndex + 1, &Hdr);\r
    if (!EFI_ERROR (Status)) {\r
      Hdr->Header.Size >>= 1;\r
      Hdr->Header.Available = TRUE;\r
      Hdr->Header.Type = PoolType;\r
      InsertHeadList (&mSmmPoolLists[SmmPoolType][PoolIndex], &Hdr->Link);\r
      Hdr = (FREE_POOL_HEADER*)((UINT8*)Hdr + Hdr->Header.Size);\r
    }\r
  }\r
\r
  if (!EFI_ERROR (Status)) {\r
    Hdr->Header.Size = MIN_POOL_SIZE << PoolIndex;\r
    Hdr->Header.Available = FALSE;\r
    Hdr->Header.Type = PoolType;\r
  }\r
\r
  *FreePoolHdr = Hdr;\r
  return Status;\r
}\r
\r
/**\r
  Internal Function. Free a pool by specified PoolIndex.\r
\r
  @param  FreePoolHdr           The pool to free.\r
\r
  @retval EFI_SUCCESS           Pool successfully freed.\r
\r
**/\r
EFI_STATUS\r
InternalFreePoolByIndex (\r
  IN FREE_POOL_HEADER  *FreePoolHdr\r
  )\r
{\r
  UINTN                 PoolIndex;\r
  SMM_POOL_TYPE         SmmPoolType;\r
\r
  ASSERT ((FreePoolHdr->Header.Size & (FreePoolHdr->Header.Size - 1)) == 0);\r
  ASSERT (((UINTN)FreePoolHdr & (FreePoolHdr->Header.Size - 1)) == 0);\r
  ASSERT (FreePoolHdr->Header.Size >= MIN_POOL_SIZE);\r
\r
  SmmPoolType = UefiMemoryTypeToSmmPoolType(FreePoolHdr->Header.Type);\r
\r
  PoolIndex = (UINTN) (HighBitSet32 ((UINT32)FreePoolHdr->Header.Size) - MIN_POOL_SHIFT);\r
  FreePoolHdr->Header.Available = TRUE;\r
  ASSERT (PoolIndex < MAX_POOL_INDEX);\r
  InsertHeadList (&mSmmPoolLists[SmmPoolType][PoolIndex], &FreePoolHdr->Link);\r
  return EFI_SUCCESS;\r
}\r
\r
/**\r
  Allocate pool of a particular type.\r
\r
  @param  PoolType               Type of pool to allocate.\r
  @param  Size                   The amount of pool to allocate.\r
  @param  Buffer                 The address to return a pointer to the allocated\r
                                 pool.\r
\r
  @retval EFI_INVALID_PARAMETER  PoolType not valid.\r
  @retval EFI_OUT_OF_RESOURCES   Size exceeds max pool size or allocation failed.\r
  @retval EFI_SUCCESS            Pool successfully allocated.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
SmmInternalAllocatePool (\r
  IN   EFI_MEMORY_TYPE  PoolType,\r
  IN   UINTN            Size,\r
  OUT  VOID             **Buffer\r
  )\r
{\r
  POOL_HEADER           *PoolHdr;\r
  FREE_POOL_HEADER      *FreePoolHdr;\r
  EFI_STATUS            Status;\r
  EFI_PHYSICAL_ADDRESS  Address;\r
  UINTN                 PoolIndex;\r
\r
  if (PoolType != EfiRuntimeServicesCode &&\r
      PoolType != EfiRuntimeServicesData) {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  Size += sizeof (*PoolHdr);\r
  if (Size > MAX_POOL_SIZE) {\r
    Size = EFI_SIZE_TO_PAGES (Size);\r
    Status = SmmInternalAllocatePages (AllocateAnyPages, PoolType, Size, &Address);\r
    if (EFI_ERROR (Status)) {\r
      return Status;\r
    }\r
\r
    PoolHdr = (POOL_HEADER*)(UINTN)Address;\r
    PoolHdr->Size = EFI_PAGES_TO_SIZE (Size);\r
    PoolHdr->Available = FALSE;\r
    PoolHdr->Type = PoolType;\r
    *Buffer = PoolHdr + 1;\r
    return Status;\r
  }\r
\r
  Size = (Size + MIN_POOL_SIZE - 1) >> MIN_POOL_SHIFT;\r
  PoolIndex = (UINTN) HighBitSet32 ((UINT32)Size);\r
  if ((Size & (Size - 1)) != 0) {\r
    PoolIndex++;\r
  }\r
\r
  Status = InternalAllocPoolByIndex (PoolType, PoolIndex, &FreePoolHdr);\r
  if (!EFI_ERROR(Status)) {\r
    *Buffer = &FreePoolHdr->Header + 1;\r
  }\r
  return Status;\r
}\r
\r
/**\r
  Allocate pool of a particular type.\r
\r
  @param  PoolType               Type of pool to allocate.\r
  @param  Size                   The amount of pool to allocate.\r
  @param  Buffer                 The address to return a pointer to the allocated\r
                                 pool.\r
\r
  @retval EFI_INVALID_PARAMETER  PoolType not valid.\r
  @retval EFI_OUT_OF_RESOURCES   Size exceeds max pool size or allocation failed.\r
  @retval EFI_SUCCESS            Pool successfully allocated.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
SmmAllocatePool (\r
  IN   EFI_MEMORY_TYPE  PoolType,\r
  IN   UINTN            Size,\r
  OUT  VOID             **Buffer\r
  )\r
{\r
  EFI_STATUS  Status;\r
\r
  Status = SmmInternalAllocatePool (PoolType, Size, Buffer);\r
  if (!EFI_ERROR (Status)) {\r
    SmmCoreUpdateProfile (\r
      (EFI_PHYSICAL_ADDRESS) (UINTN) RETURN_ADDRESS (0),\r
      MemoryProfileActionAllocatePool,\r
      PoolType,\r
      Size,\r
      *Buffer,\r
      NULL\r
      );\r
  }\r
  return Status;\r
}\r
\r
/**\r
  Frees pool.\r
\r
  @param  Buffer                 The allocated pool entry to free.\r
\r
  @retval EFI_INVALID_PARAMETER  Buffer is not a valid value.\r
  @retval EFI_SUCCESS            Pool successfully freed.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
SmmInternalFreePool (\r
  IN VOID  *Buffer\r
  )\r
{\r
  FREE_POOL_HEADER  *FreePoolHdr;\r
\r
  if (Buffer == NULL) {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  FreePoolHdr = (FREE_POOL_HEADER*)((POOL_HEADER*)Buffer - 1);\r
  ASSERT (!FreePoolHdr->Header.Available);\r
\r
  if (FreePoolHdr->Header.Size > MAX_POOL_SIZE) {\r
    ASSERT (((UINTN)FreePoolHdr & EFI_PAGE_MASK) == 0);\r
    ASSERT ((FreePoolHdr->Header.Size & EFI_PAGE_MASK) == 0);\r
    return SmmInternalFreePages (\r
             (EFI_PHYSICAL_ADDRESS)(UINTN)FreePoolHdr,\r
             EFI_SIZE_TO_PAGES (FreePoolHdr->Header.Size)\r
             );\r
  }\r
  return InternalFreePoolByIndex (FreePoolHdr);\r
}\r
\r
/**\r
  Frees pool.\r
\r
  @param  Buffer                 The allocated pool entry to free.\r
\r
  @retval EFI_INVALID_PARAMETER  Buffer is not a valid value.\r
  @retval EFI_SUCCESS            Pool successfully freed.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
SmmFreePool (\r
  IN VOID  *Buffer\r
  )\r
{\r
  EFI_STATUS  Status;\r
\r
  Status = SmmInternalFreePool (Buffer);\r
  if (!EFI_ERROR (Status)) {\r
    SmmCoreUpdateProfile (\r
      (EFI_PHYSICAL_ADDRESS) (UINTN) RETURN_ADDRESS (0),\r
      MemoryProfileActionFreePool,\r
      EfiMaxMemoryType,\r
      0,\r
      Buffer,\r
      NULL\r
      );\r
  }\r
  return Status;\r
}\r
Commit	Line	Data
e42e9404	1	/** @file\r
	2	SMM Memory pool management functions.\r
	3	\r
e524f680	4	Copyright (c) 2009 - 2016, Intel Corporation. All rights reserved.<BR>\r
e42e9404	5	This program and the accompanying materials are licensed and made available \r
	6	under the terms and conditions of the BSD License which accompanies this \r
	7	distribution. The full text of the license may be found at \r
	8	http://opensource.org/licenses/bsd-license.php \r
	9	\r
	10	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
	11	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
	12	\r
	13	**/\r
	14	\r
	15	#include "PiSmmCore.h"\r
	16	\r
5f4d3e17	17	LIST_ENTRY mSmmPoolLists[SmmPoolTypeMax][MAX_POOL_INDEX];\r
3c447c27	18	//\r
	19	// To cache the SMRAM base since when Loading modules At fixed address feature is enabled, \r
	20	// all module is assigned an offset relative the SMRAM base in build time.\r
	21	//\r
	22	GLOBAL_REMOVE_IF_UNREFERENCED EFI_PHYSICAL_ADDRESS gLoadModuleAtFixAddressSmramBase = 0;\r
e42e9404	23	\r
5f4d3e17 JY	24	/**\r
	25	Convert a UEFI memory type to SMM pool type.\r
	26	\r
	27	@param[in] MemoryType Type of pool to allocate.\r
	28	\r
	29	@return SMM pool type\r
	30	**/\r
	31	SMM_POOL_TYPE\r
	32	UefiMemoryTypeToSmmPoolType (\r
	33	IN EFI_MEMORY_TYPE MemoryType\r
	34	)\r
	35	{\r
	36	ASSERT ((MemoryType == EfiRuntimeServicesCode) \|\| (MemoryType == EfiRuntimeServicesData));\r
	37	switch (MemoryType) {\r
	38	case EfiRuntimeServicesCode:\r
	39	return SmmPoolTypeCode;\r
	40	case EfiRuntimeServicesData:\r
	41	return SmmPoolTypeData;\r
	42	default:\r
	43	return SmmPoolTypeMax;\r
	44	}\r
	45	}\r
	46	\r
	47	\r
e42e9404	48	/**\r
	49	Called to initialize the memory service.\r
	50	\r
	51	@param SmramRangeCount Number of SMRAM Regions\r
	52	@param SmramRanges Pointer to SMRAM Descriptors\r
	53	\r
	54	**/\r
	55	VOID\r
	56	SmmInitializeMemoryServices (\r
	57	IN UINTN SmramRangeCount,\r
	58	IN EFI_SMRAM_DESCRIPTOR *SmramRanges\r
	59	)\r
	60	{\r
3c447c27	61	UINTN Index;\r
94a1bc12	62	EFI_STATUS Status;\r
5f4d3e17	63	UINTN SmmPoolTypeIndex;\r
94a1bc12	64	EFI_LOAD_FIXED_ADDRESS_CONFIGURATION_TABLE *LMFAConfigurationTable;\r
e42e9404	65	\r
	66	//\r
	67	// Initialize Pool list\r
	68	//\r
5f4d3e17 JY	69	for (SmmPoolTypeIndex = 0; SmmPoolTypeIndex < SmmPoolTypeMax; SmmPoolTypeIndex++) {\r
	70	for (Index = 0; Index < ARRAY_SIZE (mSmmPoolLists[SmmPoolTypeIndex]); Index++) {\r
	71	InitializeListHead (&mSmmPoolLists[SmmPoolTypeIndex][Index]);\r
	72	}\r
e42e9404	73	}\r
94a1bc12 LG	74	\r
	75	Status = EfiGetSystemConfigurationTable (\r
	76	&gLoadFixedAddressConfigurationTableGuid,\r
	77	(VOID **) &LMFAConfigurationTable\r
	78	);\r
	79	if (!EFI_ERROR (Status) && LMFAConfigurationTable != NULL) {\r
	80	gLoadModuleAtFixAddressSmramBase = LMFAConfigurationTable->SmramBase;\r
3c447c27	81	}\r
94a1bc12	82	\r
e42e9404	83	//\r
bb34cc8c	84	// Add Free SMRAM regions\r
285a682c	85	// Need add Free memory at first, to let gSmmMemoryMap record data\r
e42e9404	86	//\r
e42e9404	87	for (Index = 0; Index < SmramRangeCount; Index++) {\r
285a682c JY	88	if ((SmramRanges[Index].RegionState & (EFI_ALLOCATED \| EFI_NEEDS_TESTING \| EFI_NEEDS_ECC_INITIALIZATION)) != 0) {\r
	89	continue;\r
	90	}\r
	91	SmmAddMemoryRegion (\r
	92	SmramRanges[Index].CpuStart,\r
	93	SmramRanges[Index].PhysicalSize,\r
	94	EfiConventionalMemory,\r
	95	SmramRanges[Index].RegionState\r
	96	);\r
	97	}\r
	98	\r
bb34cc8c LG	99	//\r
	100	// Add the allocated SMRAM regions\r
	101	//\r
285a682c JY	102	for (Index = 0; Index < SmramRangeCount; Index++) {\r
	103	if ((SmramRanges[Index].RegionState & (EFI_ALLOCATED \| EFI_NEEDS_TESTING \| EFI_NEEDS_ECC_INITIALIZATION)) == 0) {\r
	104	continue;\r
	105	}\r
e42e9404	106	SmmAddMemoryRegion (\r
	107	SmramRanges[Index].CpuStart,\r
	108	SmramRanges[Index].PhysicalSize,\r
	109	EfiConventionalMemory,\r
	110	SmramRanges[Index].RegionState\r
	111	);\r
	112	}\r
3c447c27	113	\r
e42e9404	114	}\r
	115	\r
	116	/**\r
	117	Internal Function. Allocate a pool by specified PoolIndex.\r
	118	\r
5f4d3e17	119	@param PoolType Type of pool to allocate.\r
e42e9404	120	@param PoolIndex Index which indicate the Pool size.\r
	121	@param FreePoolHdr The returned Free pool.\r
	122	\r
	123	@retval EFI_OUT_OF_RESOURCES Allocation failed.\r
	124	@retval EFI_SUCCESS Pool successfully allocated.\r
	125	\r
	126	**/\r
	127	EFI_STATUS\r
	128	InternalAllocPoolByIndex (\r
5f4d3e17	129	IN EFI_MEMORY_TYPE PoolType,\r
e42e9404	130	IN UINTN PoolIndex,\r
	131	OUT FREE_POOL_HEADER **FreePoolHdr\r
	132	)\r
	133	{\r
84edd20b SZ	134	EFI_STATUS Status;\r
	135	FREE_POOL_HEADER *Hdr;\r
	136	EFI_PHYSICAL_ADDRESS Address;\r
5f4d3e17 JY	137	SMM_POOL_TYPE SmmPoolType;\r
	138	\r
	139	SmmPoolType = UefiMemoryTypeToSmmPoolType(PoolType);\r
e42e9404	140	\r
52c0d06b	141	ASSERT (PoolIndex <= MAX_POOL_INDEX);\r
e42e9404	142	Status = EFI_SUCCESS;\r
bf14e107	143	Hdr = NULL;\r
e42e9404	144	if (PoolIndex == MAX_POOL_INDEX) {\r
5f4d3e17	145	Status = SmmInternalAllocatePages (AllocateAnyPages, PoolType, EFI_SIZE_TO_PAGES (MAX_POOL_SIZE << 1), &Address);\r
84edd20b	146	if (EFI_ERROR (Status)) {\r
5b422a7b	147	return EFI_OUT_OF_RESOURCES;\r
e42e9404	148	}\r
84edd20b	149	Hdr = (FREE_POOL_HEADER *) (UINTN) Address;\r
5f4d3e17 JY	150	} else if (!IsListEmpty (&mSmmPoolLists[SmmPoolType][PoolIndex])) {\r
5f4d3e17 JY	151	Hdr = BASE_CR (GetFirstNode (&mSmmPoolLists[SmmPoolType][PoolIndex]), FREE_POOL_HEADER, Link);\r
e42e9404	152	RemoveEntryList (&Hdr->Link);\r
e42e9404	153	} else {\r
5f4d3e17	154	Status = InternalAllocPoolByIndex (PoolType, PoolIndex + 1, &Hdr);\r
e42e9404	155	if (!EFI_ERROR (Status)) {\r
	156	Hdr->Header.Size >>= 1;\r
	157	Hdr->Header.Available = TRUE;\r
5f4d3e17 JY	158	Hdr->Header.Type = PoolType;\r
5f4d3e17 JY	159	InsertHeadList (&mSmmPoolLists[SmmPoolType][PoolIndex], &Hdr->Link);\r
e42e9404	160	Hdr = (FREE_POOL_HEADER)((UINT8)Hdr + Hdr->Header.Size);\r
	161	}\r
	162	}\r
	163	\r
	164	if (!EFI_ERROR (Status)) {\r
	165	Hdr->Header.Size = MIN_POOL_SIZE << PoolIndex;\r
	166	Hdr->Header.Available = FALSE;\r
5f4d3e17	167	Hdr->Header.Type = PoolType;\r
e42e9404	168	}\r
	169	\r
	170	*FreePoolHdr = Hdr;\r
	171	return Status;\r
	172	}\r
	173	\r
	174	/**\r
	175	Internal Function. Free a pool by specified PoolIndex.\r
	176	\r
	177	@param FreePoolHdr The pool to free.\r
	178	\r
	179	@retval EFI_SUCCESS Pool successfully freed.\r
	180	\r
	181	**/\r
	182	EFI_STATUS\r
	183	InternalFreePoolByIndex (\r
	184	IN FREE_POOL_HEADER *FreePoolHdr\r
	185	)\r
	186	{\r
5f4d3e17 JY	187	UINTN PoolIndex;\r
5f4d3e17 JY	188	SMM_POOL_TYPE SmmPoolType;\r
e42e9404	189	\r
	190	ASSERT ((FreePoolHdr->Header.Size & (FreePoolHdr->Header.Size - 1)) == 0);\r
	191	ASSERT (((UINTN)FreePoolHdr & (FreePoolHdr->Header.Size - 1)) == 0);\r
	192	ASSERT (FreePoolHdr->Header.Size >= MIN_POOL_SIZE);\r
	193	\r
5f4d3e17 JY	194	SmmPoolType = UefiMemoryTypeToSmmPoolType(FreePoolHdr->Header.Type);\r
5f4d3e17 JY	195	\r
fbe12b79	196	PoolIndex = (UINTN) (HighBitSet32 ((UINT32)FreePoolHdr->Header.Size) - MIN_POOL_SHIFT);\r
e42e9404	197	FreePoolHdr->Header.Available = TRUE;\r
5b422a7b	198	ASSERT (PoolIndex < MAX_POOL_INDEX);\r
5f4d3e17	199	InsertHeadList (&mSmmPoolLists[SmmPoolType][PoolIndex], &FreePoolHdr->Link);\r
e42e9404	200	return EFI_SUCCESS;\r
	201	}\r
	202	\r
	203	/**\r
	204	Allocate pool of a particular type.\r
	205	\r
	206	@param PoolType Type of pool to allocate.\r
	207	@param Size The amount of pool to allocate.\r
	208	@param Buffer The address to return a pointer to the allocated\r
	209	pool.\r
	210	\r
	211	@retval EFI_INVALID_PARAMETER PoolType not valid.\r
	212	@retval EFI_OUT_OF_RESOURCES Size exceeds max pool size or allocation failed.\r
	213	@retval EFI_SUCCESS Pool successfully allocated.\r
	214	\r
	215	**/\r
	216	EFI_STATUS\r
	217	EFIAPI\r
84edd20b	218	SmmInternalAllocatePool (\r
e42e9404	219	IN EFI_MEMORY_TYPE PoolType,\r
	220	IN UINTN Size,\r
	221	OUT VOID **Buffer\r
	222	)\r
	223	{\r
	224	POOL_HEADER *PoolHdr;\r
	225	FREE_POOL_HEADER *FreePoolHdr;\r
	226	EFI_STATUS Status;\r
	227	EFI_PHYSICAL_ADDRESS Address;\r
	228	UINTN PoolIndex;\r
	229	\r
	230	if (PoolType != EfiRuntimeServicesCode &&\r
	231	PoolType != EfiRuntimeServicesData) {\r
	232	return EFI_INVALID_PARAMETER;\r
	233	}\r
	234	\r
e42e9404	235	Size += sizeof (*PoolHdr);\r
	236	if (Size > MAX_POOL_SIZE) {\r
	237	Size = EFI_SIZE_TO_PAGES (Size);\r
84edd20b	238	Status = SmmInternalAllocatePages (AllocateAnyPages, PoolType, Size, &Address);\r
e42e9404	239	if (EFI_ERROR (Status)) {\r
	240	return Status;\r
	241	}\r
	242	\r
	243	PoolHdr = (POOL_HEADER*)(UINTN)Address;\r
	244	PoolHdr->Size = EFI_PAGES_TO_SIZE (Size);\r
	245	PoolHdr->Available = FALSE;\r
5f4d3e17	246	PoolHdr->Type = PoolType;\r
e42e9404	247	*Buffer = PoolHdr + 1;\r
	248	return Status;\r
	249	}\r
	250	\r
	251	Size = (Size + MIN_POOL_SIZE - 1) >> MIN_POOL_SHIFT;\r
fbe12b79	252	PoolIndex = (UINTN) HighBitSet32 ((UINT32)Size);\r
e42e9404	253	if ((Size & (Size - 1)) != 0) {\r
	254	PoolIndex++;\r
	255	}\r
	256	\r
5f4d3e17	257	Status = InternalAllocPoolByIndex (PoolType, PoolIndex, &FreePoolHdr);\r
bf14e107 SZ	258	if (!EFI_ERROR(Status)) {\r
	259	*Buffer = &FreePoolHdr->Header + 1;\r
	260	}\r
e42e9404	261	return Status;\r
	262	}\r
	263	\r
84edd20b SZ	264	/**\r
	265	Allocate pool of a particular type.\r
	266	\r
	267	@param PoolType Type of pool to allocate.\r
	268	@param Size The amount of pool to allocate.\r
	269	@param Buffer The address to return a pointer to the allocated\r
	270	pool.\r
	271	\r
	272	@retval EFI_INVALID_PARAMETER PoolType not valid.\r
	273	@retval EFI_OUT_OF_RESOURCES Size exceeds max pool size or allocation failed.\r
	274	@retval EFI_SUCCESS Pool successfully allocated.\r
	275	\r
	276	**/\r
	277	EFI_STATUS\r
	278	EFIAPI\r
	279	SmmAllocatePool (\r
	280	IN EFI_MEMORY_TYPE PoolType,\r
	281	IN UINTN Size,\r
	282	OUT VOID **Buffer\r
	283	)\r
	284	{\r
	285	EFI_STATUS Status;\r
	286	\r
	287	Status = SmmInternalAllocatePool (PoolType, Size, Buffer);\r
	288	if (!EFI_ERROR (Status)) {\r
e524f680 SZ	289	SmmCoreUpdateProfile (\r
	290	(EFI_PHYSICAL_ADDRESS) (UINTN) RETURN_ADDRESS (0),\r
	291	MemoryProfileActionAllocatePool,\r
	292	PoolType,\r
	293	Size,\r
	294	*Buffer,\r
	295	NULL\r
	296	);\r
84edd20b SZ	297	}\r
	298	return Status;\r
	299	}\r
	300	\r
e42e9404	301	/**\r
	302	Frees pool.\r
	303	\r
	304	@param Buffer The allocated pool entry to free.\r
	305	\r
	306	@retval EFI_INVALID_PARAMETER Buffer is not a valid value.\r
	307	@retval EFI_SUCCESS Pool successfully freed.\r
	308	\r
	309	**/\r
	310	EFI_STATUS\r
	311	EFIAPI\r
84edd20b	312	SmmInternalFreePool (\r
e42e9404	313	IN VOID *Buffer\r
	314	)\r
	315	{\r
	316	FREE_POOL_HEADER *FreePoolHdr;\r
	317	\r
	318	if (Buffer == NULL) {\r
	319	return EFI_INVALID_PARAMETER;\r
	320	}\r
	321	\r
	322	FreePoolHdr = (FREE_POOL_HEADER)((POOL_HEADER)Buffer - 1);\r
	323	ASSERT (!FreePoolHdr->Header.Available);\r
	324	\r
	325	if (FreePoolHdr->Header.Size > MAX_POOL_SIZE) {\r
	326	ASSERT (((UINTN)FreePoolHdr & EFI_PAGE_MASK) == 0);\r
	327	ASSERT ((FreePoolHdr->Header.Size & EFI_PAGE_MASK) == 0);\r
84edd20b	328	return SmmInternalFreePages (\r
e42e9404	329	(EFI_PHYSICAL_ADDRESS)(UINTN)FreePoolHdr,\r
	330	EFI_SIZE_TO_PAGES (FreePoolHdr->Header.Size)\r
	331	);\r
	332	}\r
	333	return InternalFreePoolByIndex (FreePoolHdr);\r
	334	}\r
84edd20b SZ	335	\r
	336	/**\r
	337	Frees pool.\r
	338	\r
	339	@param Buffer The allocated pool entry to free.\r
	340	\r
	341	@retval EFI_INVALID_PARAMETER Buffer is not a valid value.\r
	342	@retval EFI_SUCCESS Pool successfully freed.\r
	343	\r
	344	**/\r
	345	EFI_STATUS\r
	346	EFIAPI\r
	347	SmmFreePool (\r
	348	IN VOID *Buffer\r
	349	)\r
	350	{\r
	351	EFI_STATUS Status;\r
	352	\r
	353	Status = SmmInternalFreePool (Buffer);\r
	354	if (!EFI_ERROR (Status)) {\r
e524f680 SZ	355	SmmCoreUpdateProfile (\r
	356	(EFI_PHYSICAL_ADDRESS) (UINTN) RETURN_ADDRESS (0),\r
	357	MemoryProfileActionFreePool,\r
	358	EfiMaxMemoryType,\r
	359	0,\r
	360	Buffer,\r
	361	NULL\r
	362	);\r
84edd20b SZ	363	}\r
	364	return Status;\r
	365	}\r