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authorkx <kx@radix.pro>2024-06-04 06:43:08 +0300
committerkx <kx@radix.pro>2024-06-04 06:43:08 +0300
commit7e2ccccace24636f29ddc210b94606abd4c7e42b (patch)
tree545d43ea12671048956cafeb12303e84d601e571 /MdeModulePkg/Core/PiSmmCore/InstallConfigurationTable.c
parent27b044605cd5f6b33a3d231576003850b3fe305b (diff)
downloadedk2-trunk.tar.xz
Renormalized end-of-lines from master@27b044605cd5f6b33a3d231576003850b3fe305btrunk
Diffstat (limited to 'MdeModulePkg/Core/PiSmmCore/InstallConfigurationTable.c')
-rw-r--r--MdeModulePkg/Core/PiSmmCore/InstallConfigurationTable.c340
1 files changed, 170 insertions, 170 deletions
diff --git a/MdeModulePkg/Core/PiSmmCore/InstallConfigurationTable.c b/MdeModulePkg/Core/PiSmmCore/InstallConfigurationTable.c
index 0bc51be12b..452e1264b7 100644
--- a/MdeModulePkg/Core/PiSmmCore/InstallConfigurationTable.c
+++ b/MdeModulePkg/Core/PiSmmCore/InstallConfigurationTable.c
@@ -1,170 +1,170 @@
-/** @file
- System Management System Table Services SmmInstallConfigurationTable service
-
- Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
- SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-
-#include "PiSmmCore.h"
-
-#define CONFIG_TABLE_SIZE_INCREASED 0x10
-
-UINTN mSmmSystemTableAllocateSize = 0;
-
-/**
- The SmmInstallConfigurationTable() function is used to maintain the list
- of configuration tables that are stored in the System Management System
- Table. The list is stored as an array of (GUID, Pointer) pairs. The list
- must be allocated from pool memory with PoolType set to EfiRuntimeServicesData.
-
- @param SystemTable A pointer to the SMM System Table (SMST).
- @param Guid A pointer to the GUID for the entry to add, update, or remove.
- @param Table A pointer to the buffer of the table to add.
- @param TableSize The size of the table to install.
-
- @retval EFI_SUCCESS The (Guid, Table) pair was added, updated, or removed.
- @retval EFI_INVALID_PARAMETER Guid is not valid.
- @retval EFI_NOT_FOUND An attempt was made to delete a non-existent entry.
- @retval EFI_OUT_OF_RESOURCES There is not enough memory available to complete the operation.
-
-**/
-EFI_STATUS
-EFIAPI
-SmmInstallConfigurationTable (
- IN CONST EFI_SMM_SYSTEM_TABLE2 *SystemTable,
- IN CONST EFI_GUID *Guid,
- IN VOID *Table,
- IN UINTN TableSize
- )
-{
- UINTN Index;
- EFI_CONFIGURATION_TABLE *ConfigurationTable;
- EFI_CONFIGURATION_TABLE *OldTable;
-
- //
- // If Guid is NULL, then this operation cannot be performed
- //
- if (Guid == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- ConfigurationTable = gSmmCoreSmst.SmmConfigurationTable;
-
- //
- // Search all the table for an entry that matches Guid
- //
- for (Index = 0; Index < gSmmCoreSmst.NumberOfTableEntries; Index++) {
- if (CompareGuid (Guid, &(ConfigurationTable[Index].VendorGuid))) {
- break;
- }
- }
-
- if (Index < gSmmCoreSmst.NumberOfTableEntries) {
- //
- // A match was found, so this is either a modify or a delete operation
- //
- if (Table != NULL) {
- //
- // If Table is not NULL, then this is a modify operation.
- // Modify the table entry and return.
- //
- ConfigurationTable[Index].VendorTable = Table;
- return EFI_SUCCESS;
- }
-
- //
- // A match was found and Table is NULL, so this is a delete operation.
- //
- gSmmCoreSmst.NumberOfTableEntries--;
-
- //
- // Copy over deleted entry
- //
- CopyMem (
- &(ConfigurationTable[Index]),
- &(ConfigurationTable[Index + 1]),
- (gSmmCoreSmst.NumberOfTableEntries - Index) * sizeof (EFI_CONFIGURATION_TABLE)
- );
- } else {
- //
- // No matching GUIDs were found, so this is an add operation.
- //
- if (Table == NULL) {
- //
- // If Table is NULL on an add operation, then return an error.
- //
- return EFI_NOT_FOUND;
- }
-
- //
- // Assume that Index == gSmmCoreSmst.NumberOfTableEntries
- //
- if ((Index * sizeof (EFI_CONFIGURATION_TABLE)) >= mSmmSystemTableAllocateSize) {
- //
- // Allocate a table with one additional entry.
- //
- mSmmSystemTableAllocateSize += (CONFIG_TABLE_SIZE_INCREASED * sizeof (EFI_CONFIGURATION_TABLE));
- ConfigurationTable = AllocatePool (mSmmSystemTableAllocateSize);
- if (ConfigurationTable == NULL) {
- //
- // If a new table could not be allocated, then return an error.
- //
- return EFI_OUT_OF_RESOURCES;
- }
-
- if (gSmmCoreSmst.SmmConfigurationTable != NULL) {
- //
- // Copy the old table to the new table.
- //
- CopyMem (
- ConfigurationTable,
- gSmmCoreSmst.SmmConfigurationTable,
- Index * sizeof (EFI_CONFIGURATION_TABLE)
- );
-
- //
- // Record the old table pointer.
- //
- OldTable = gSmmCoreSmst.SmmConfigurationTable;
-
- //
- // As the SmmInstallConfigurationTable() may be re-entered by FreePool() in
- // its calling stack, updating System table to the new table pointer must
- // be done before calling FreePool() to free the old table.
- // It can make sure the gSmmCoreSmst.SmmConfigurationTable point to the new
- // table and avoid the errors of use-after-free to the old table by the
- // reenter of SmmInstallConfigurationTable() in FreePool()'s calling stack.
- //
- gSmmCoreSmst.SmmConfigurationTable = ConfigurationTable;
-
- //
- // Free the old table after updating System Table to the new table pointer.
- //
- FreePool (OldTable);
- } else {
- //
- // Update System Table
- //
- gSmmCoreSmst.SmmConfigurationTable = ConfigurationTable;
- }
- }
-
- //
- // Fill in the new entry
- //
- CopyGuid ((VOID *)&ConfigurationTable[Index].VendorGuid, Guid);
- ConfigurationTable[Index].VendorTable = Table;
-
- //
- // This is an add operation, so increment the number of table entries
- //
- gSmmCoreSmst.NumberOfTableEntries++;
- }
-
- //
- // CRC-32 field is ignorable for SMM System Table and should be set to zero
- //
-
- return EFI_SUCCESS;
-}
+/** @file
+ System Management System Table Services SmmInstallConfigurationTable service
+
+ Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "PiSmmCore.h"
+
+#define CONFIG_TABLE_SIZE_INCREASED 0x10
+
+UINTN mSmmSystemTableAllocateSize = 0;
+
+/**
+ The SmmInstallConfigurationTable() function is used to maintain the list
+ of configuration tables that are stored in the System Management System
+ Table. The list is stored as an array of (GUID, Pointer) pairs. The list
+ must be allocated from pool memory with PoolType set to EfiRuntimeServicesData.
+
+ @param SystemTable A pointer to the SMM System Table (SMST).
+ @param Guid A pointer to the GUID for the entry to add, update, or remove.
+ @param Table A pointer to the buffer of the table to add.
+ @param TableSize The size of the table to install.
+
+ @retval EFI_SUCCESS The (Guid, Table) pair was added, updated, or removed.
+ @retval EFI_INVALID_PARAMETER Guid is not valid.
+ @retval EFI_NOT_FOUND An attempt was made to delete a non-existent entry.
+ @retval EFI_OUT_OF_RESOURCES There is not enough memory available to complete the operation.
+
+**/
+EFI_STATUS
+EFIAPI
+SmmInstallConfigurationTable (
+ IN CONST EFI_SMM_SYSTEM_TABLE2 *SystemTable,
+ IN CONST EFI_GUID *Guid,
+ IN VOID *Table,
+ IN UINTN TableSize
+ )
+{
+ UINTN Index;
+ EFI_CONFIGURATION_TABLE *ConfigurationTable;
+ EFI_CONFIGURATION_TABLE *OldTable;
+
+ //
+ // If Guid is NULL, then this operation cannot be performed
+ //
+ if (Guid == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ ConfigurationTable = gSmmCoreSmst.SmmConfigurationTable;
+
+ //
+ // Search all the table for an entry that matches Guid
+ //
+ for (Index = 0; Index < gSmmCoreSmst.NumberOfTableEntries; Index++) {
+ if (CompareGuid (Guid, &(ConfigurationTable[Index].VendorGuid))) {
+ break;
+ }
+ }
+
+ if (Index < gSmmCoreSmst.NumberOfTableEntries) {
+ //
+ // A match was found, so this is either a modify or a delete operation
+ //
+ if (Table != NULL) {
+ //
+ // If Table is not NULL, then this is a modify operation.
+ // Modify the table entry and return.
+ //
+ ConfigurationTable[Index].VendorTable = Table;
+ return EFI_SUCCESS;
+ }
+
+ //
+ // A match was found and Table is NULL, so this is a delete operation.
+ //
+ gSmmCoreSmst.NumberOfTableEntries--;
+
+ //
+ // Copy over deleted entry
+ //
+ CopyMem (
+ &(ConfigurationTable[Index]),
+ &(ConfigurationTable[Index + 1]),
+ (gSmmCoreSmst.NumberOfTableEntries - Index) * sizeof (EFI_CONFIGURATION_TABLE)
+ );
+ } else {
+ //
+ // No matching GUIDs were found, so this is an add operation.
+ //
+ if (Table == NULL) {
+ //
+ // If Table is NULL on an add operation, then return an error.
+ //
+ return EFI_NOT_FOUND;
+ }
+
+ //
+ // Assume that Index == gSmmCoreSmst.NumberOfTableEntries
+ //
+ if ((Index * sizeof (EFI_CONFIGURATION_TABLE)) >= mSmmSystemTableAllocateSize) {
+ //
+ // Allocate a table with one additional entry.
+ //
+ mSmmSystemTableAllocateSize += (CONFIG_TABLE_SIZE_INCREASED * sizeof (EFI_CONFIGURATION_TABLE));
+ ConfigurationTable = AllocatePool (mSmmSystemTableAllocateSize);
+ if (ConfigurationTable == NULL) {
+ //
+ // If a new table could not be allocated, then return an error.
+ //
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ if (gSmmCoreSmst.SmmConfigurationTable != NULL) {
+ //
+ // Copy the old table to the new table.
+ //
+ CopyMem (
+ ConfigurationTable,
+ gSmmCoreSmst.SmmConfigurationTable,
+ Index * sizeof (EFI_CONFIGURATION_TABLE)
+ );
+
+ //
+ // Record the old table pointer.
+ //
+ OldTable = gSmmCoreSmst.SmmConfigurationTable;
+
+ //
+ // As the SmmInstallConfigurationTable() may be re-entered by FreePool() in
+ // its calling stack, updating System table to the new table pointer must
+ // be done before calling FreePool() to free the old table.
+ // It can make sure the gSmmCoreSmst.SmmConfigurationTable point to the new
+ // table and avoid the errors of use-after-free to the old table by the
+ // reenter of SmmInstallConfigurationTable() in FreePool()'s calling stack.
+ //
+ gSmmCoreSmst.SmmConfigurationTable = ConfigurationTable;
+
+ //
+ // Free the old table after updating System Table to the new table pointer.
+ //
+ FreePool (OldTable);
+ } else {
+ //
+ // Update System Table
+ //
+ gSmmCoreSmst.SmmConfigurationTable = ConfigurationTable;
+ }
+ }
+
+ //
+ // Fill in the new entry
+ //
+ CopyGuid ((VOID *)&ConfigurationTable[Index].VendorGuid, Guid);
+ ConfigurationTable[Index].VendorTable = Table;
+
+ //
+ // This is an add operation, so increment the number of table entries
+ //
+ gSmmCoreSmst.NumberOfTableEntries++;
+ }
+
+ //
+ // CRC-32 field is ignorable for SMM System Table and should be set to zero
+ //
+
+ return EFI_SUCCESS;
+}