Some SMBIOS structure/table fields have dependency on other SMBIOS
structures/tables. These dependencies are established using handles
pointing to the dependent tables.
A SMBIOS table handle can be obtained by either installing a SMBIOS
table or by allocating a handle, which requires complex management
to avoid any clashes.
Obtaining a SMBIOS handle by installation requires that the dependent
table is installed before the parent SMBIOS table can be installed.
Therefore, introduce a SMBIOS table dispatcher that walks the SMBIOS
dependency list and schedules the dependent tables to be installed
before the parent table is installed.
Signed-off-by: Sami Mujawar <sami.muja...@arm.com>
Cc: Alexei Fedorov <alexei.fedo...@arm.com>
Cc: Pierre Gondois <pierre.gond...@arm.com>
Cc: Girish Mahadevan <gmahade...@nvidia.com>
Cc: Jeff Brasen <jbra...@nvidia.com>
Cc: Ashish Singhal <ashishsin...@nvidia.com>
Cc: Nick Ramirez <nrami...@nvidia.com>
Cc: William Watson <wwat...@nvidia.com>
Cc: Abner Chang <abner.ch...@amd.com>
Cc: Samer El-Haj-Mahmoud <samer.el-haj-mahm...@arm.com>
Cc: Jose Marinho <jose.mari...@arm.com>
---
Notes:
v2:
- Update dispatcher state machine to remove StUnknown. [SAMI]
- Move extern function to header file and move debug [ABNER]
code together.
- Updated code based on review feedback to move extern [SAMI]
function to header file and also moved the debug code
together.
Ref: https://edk2.groups.io/g/devel/message/95341
DynamicTablesPkg/Drivers/DynamicTableManagerDxe/DynamicTableManagerDxe.inf |
4 +-
DynamicTablesPkg/Drivers/DynamicTableManagerDxe/SmbiosTableDispatcher.c |
282 ++++++++++++++++++++
DynamicTablesPkg/Drivers/DynamicTableManagerDxe/SmbiosTableDispatcher.h |
159 +++++++++++
3 files changed, 444 insertions(+), 1 deletion(-)
diff --git
a/DynamicTablesPkg/Drivers/DynamicTableManagerDxe/DynamicTableManagerDxe.inf
b/DynamicTablesPkg/Drivers/DynamicTableManagerDxe/DynamicTableManagerDxe.inf
index
ad8b3d037c169ca848b5ea84fd1086b83f37876f..b09272d883c6f4f05eb03dcdab3efeda92b2fbb6
100644
--- a/DynamicTablesPkg/Drivers/DynamicTableManagerDxe/DynamicTableManagerDxe.inf
+++ b/DynamicTablesPkg/Drivers/DynamicTableManagerDxe/DynamicTableManagerDxe.inf
@@ -1,7 +1,7 @@
## @file
# Module that drives the table generation and installation process.
#
-# Copyright (c) 2017 - 2019, ARM Limited. All rights reserved.
+# Copyright (c) 2017 - 2022, Arm Limited. All rights reserved.
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
##
@@ -22,6 +22,8 @@ [Defines]
[Sources]
DynamicTableManagerDxe.c
+ SmbiosTableDispatcher.c
+ SmbiosTableDispatcher.h
[Packages]
MdePkg/MdePkg.dec
diff --git
a/DynamicTablesPkg/Drivers/DynamicTableManagerDxe/SmbiosTableDispatcher.c
b/DynamicTablesPkg/Drivers/DynamicTableManagerDxe/SmbiosTableDispatcher.c
new file mode 100644
index
0000000000000000000000000000000000000000..0e728538d9f6eb0b164fea3a160d3233db833f8d
--- /dev/null
+++ b/DynamicTablesPkg/Drivers/DynamicTableManagerDxe/SmbiosTableDispatcher.c
@@ -0,0 +1,282 @@
+/** @file
+ Dynamic Smbios Table Dispatcher
+
+ Copyright (c) 2022 - 2023, Arm Limited. All rights reserved.
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+#include <Library/DebugLib.h>
+#include <Protocol/Smbios.h>
+
+#include <Include/StandardNameSpaceObjects.h>
+#include <SmbiosTableDispatcher.h>
+
+/**
+ The SMBIOS dispatcher state table.
+
+ The SMBIOS dispatcher state table is used to establish the dependency
+ order in which the SMBIOS tables are installed. This allows the SMBIOS
+ dispatcher to dispatch the dependent tables for installation before the
+ parent table is installed.
+ The SMBIOS_TABLE_DISPATCHER.Dependency[] field is used to establish the
+ dependency list.
+ Elements in the Dependency list are resolved by increasing index. However,
+ all orders are equivalent as:
+ - the Parent SMBIOS table will only be installed once all dependencies
+ have been satisfied.
+ - no cyclic dependency is allowed.
+ The dependency list is terminated by SMTT_NULL.
+*/
+STATIC
+SMBIOS_TABLE_DISPATCHER mSmBiosDispatcher[MAX_SMBIOS_TABLES] = {
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_BIOS_INFORMATION,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_SYSTEM_INFORMATION,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_BASEBOARD_INFORMATION,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_SYSTEM_ENCLOSURE,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_PROCESSOR_INFORMATION,
SMBIOS_TYPE_CACHE_INFORMATION, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_MEMORY_CONTROLLER_INFORMATION,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_MEMORY_MODULE_INFORMATON,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_CACHE_INFORMATION,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_PORT_CONNECTOR_INFORMATION,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_SYSTEM_SLOTS,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_ONBOARD_DEVICE_INFORMATION,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_OEM_STRINGS,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_SYSTEM_CONFIGURATION_OPTIONS,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_BIOS_LANGUAGE_INFORMATION,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_GROUP_ASSOCIATIONS,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_SYSTEM_EVENT_LOG,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_PHYSICAL_MEMORY_ARRAY,
SMBIOS_TYPE_32BIT_MEMORY_ERROR_INFORMATION,
SMBIOS_TYPE_64BIT_MEMORY_ERROR_INFORMATION, SMTT_NULL,
SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_MEMORY_DEVICE,
SMBIOS_TYPE_PHYSICAL_MEMORY_ARRAY,
SMBIOS_TYPE_32BIT_MEMORY_ERROR_INFORMATION,
SMBIOS_TYPE_64BIT_MEMORY_ERROR_INFORMATION, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_32BIT_MEMORY_ERROR_INFORMATION,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_MEMORY_ARRAY_MAPPED_ADDRESS,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_MEMORY_DEVICE_MAPPED_ADDRESS,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_BUILT_IN_POINTING_DEVICE,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_PORTABLE_BATTERY,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_SYSTEM_RESET,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_HARDWARE_SECURITY,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_SYSTEM_POWER_CONTROLS,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_VOLTAGE_PROBE,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_COOLING_DEVICE,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_TEMPERATURE_PROBE,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_ELECTRICAL_CURRENT_PROBE,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_OUT_OF_BAND_REMOTE_ACCESS,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_BOOT_INTEGRITY_SERVICE,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_SYSTEM_BOOT_INFORMATION,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_64BIT_MEMORY_ERROR_INFORMATION,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_MANAGEMENT_DEVICE,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_MANAGEMENT_DEVICE_COMPONENT,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_MANAGEMENT_DEVICE_THRESHOLD_DATA,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_MEMORY_CHANNEL,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_IPMI_DEVICE_INFORMATION,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_SYSTEM_POWER_SUPPLY,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_ADDITIONAL_INFORMATION,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_ONBOARD_DEVICES_EXTENDED_INFORMATION,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_MANAGEMENT_CONTROLLER_HOST_INTERFACE,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_TPM_DEVICE,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_PROCESSOR_ADDITIONAL_INFORMATION,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_FIRMWARE_INVENTORY_INFORMATION,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL),
+ SMBIOS_TABLE_DEP (SMBIOS_TYPE_STRING_PROPERTY_INFORMATION,
SMTT_NULL, SMTT_NULL,
SMTT_NULL, SMTT_NULL, SMTT_NULL)
+};
+
+#if !defined (MDEPKG_NDEBUG)
+
+/**
+ A string table describing the SMBIOS dispatcher states.
+*/
+STATIC
+CONST CHAR8 *SmbiosTableStateTxt[] = {
+ "StNotPresent",
+ "StPresent",
+ "StDispatched"
+};
+
+/**
+ Print the SMBIOS Table Dispatcher state information.
+
+ @param Verbose Print detailed report
+**/
+STATIC
+VOID
+EFIAPI
+PrintDispatcherStatus (
+ IN BOOLEAN Verbose
+ )
+{
+ UINTN Index;
+
+ DEBUG ((DEBUG_VERBOSE, "Dispatcher Status:\n"));
+ for (Index = 0; Index < ARRAY_SIZE (mSmBiosDispatcher); Index++) {
+ if ((!Verbose) && (mSmBiosDispatcher[Index].State == StNotPresent)) {
+ continue;
+ }
+
+ DEBUG ((
+ DEBUG_VERBOSE,
+ "%02d: %10a [%02d, %02d, %02d, %02d, %02d]\n",
+ mSmBiosDispatcher[Index].TableType,
+ SmbiosTableStateTxt[mSmBiosDispatcher[Index].State],
+ mSmBiosDispatcher[Index].Dependency[0],
+ mSmBiosDispatcher[Index].Dependency[1],
+ mSmBiosDispatcher[Index].Dependency[2],
+ mSmBiosDispatcher[Index].Dependency[3],
+ mSmBiosDispatcher[Index].Dependency[4]
+ ));
+ } // for
+
+ DEBUG ((DEBUG_VERBOSE, "\n"));
+}
+
+#define DEBUG_PRINT_DISPATCHER_STATUS(Verbose) PrintDispatcherStatus (Verbose)
+#else
+#define DEBUG_PRINT_DISPATCHER_STATUS(x)
+#endif
+
+/**
+ Initialise the SMBIOS table dispatcher.
+
+ @param SmbiosTableInfo Pointer to the list of SMBIOS tables to be installed.
+ @param SmbiosTableCount Count of SMBIOS tables to be installed.
+**/
+VOID
+EFIAPI
+InitSmbiosTableDispatcher (
+ IN CM_STD_OBJ_SMBIOS_TABLE_INFO *SmbiosTableInfo,
+ IN UINT32 SmbiosTableCount
+ )
+{
+ UINTN Index;
+ SMBIOS_TABLE_TYPE TableType;
+
+ // Search for the list of SMBIOS tables presented
+ // for installation and update the dispatcher status.
+ for (Index = 0; Index < SmbiosTableCount; Index++) {
+ TableType = SmbiosTableInfo[Index].TableType;
+ ASSERT (mSmBiosDispatcher[TableType].State != StPresent);
+ mSmBiosDispatcher[TableType].State = StPresent;
+ }
+
+ DEBUG_PRINT_DISPATCHER_STATUS (FALSE);
+}
+
+/** Schedule the dispatch of a SMBIOS table.
+
+ The SMBIOS dispatcher state table is used to establish the dependency
+ order in which the SMBIOS tables are installed. This allows the SMBIOS
+ dispatcher to dispatch the dependent tables for installation before the
+ parent table is installed.
+ The SMBIOS_TABLE_DISPATCHER.Dependency[] field is used to establish the
+ dependency list.
+ Elements in the Dependency list are resolved by increasing index. However,
+ all orders are equivalent as:
+ - the Parent SMBIOS table will only be installed once all dependencies
+ have been satisfied.
+ - no cyclic dependency is allowed.
+ The dependency list is terminated by SMTT_NULL.
+
+ @param [in] TableType The SMBIOS table type to schedule for
+ dispatch.
+ @param [in] TableFactoryProtocol Pointer to the Table Factory Protocol
+ interface.
+ @param [in] CfgMgrProtocol Pointer to the Configuration Manager
+ Protocol Interface.
+ @param [in] SmbiosProtocol Pointer to the SMBIOS protocol.
+ @param [in] SmbiosTableInfo Pointer to the SMBIOS table Info.
+ @param [in] SmbiosTableCount Count of SMBIOS table info objects.
+
+ @retval EFI_SUCCESS Success.
+ @retval EFI_INVALID_PARAMETER A parameter is invalid.
+ @retval EFI_NOT_FOUND Required object is not found.
+ @retval EFI_BAD_BUFFER_SIZE Size returned by the Configuration Manager
+ is less than the Object size for the
+ requested object.
+**/
+EFI_STATUS
+EFIAPI
+DispatchSmbiosTable (
+ IN CONST SMBIOS_TABLE_TYPE TableType,
+ IN CONST EDKII_DYNAMIC_TABLE_FACTORY_PROTOCOL *CONST TableFactoryProtocol,
+ IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL *CONST CfgMgrProtocol,
+ IN EFI_SMBIOS_PROTOCOL *SmbiosProtocol,
+ IN CM_STD_OBJ_SMBIOS_TABLE_INFO *CONST SmbiosTableInfo,
+ IN CONST UINT32 SmbiosTableCount
+ )
+{
+ EFI_STATUS Status;
+ UINTN Index;
+ SMBIOS_TABLE_DISPATCHER *Disp;
+
+ DEBUG ((DEBUG_VERBOSE, "->DP %02d\n", TableType));
+ Disp = &mSmBiosDispatcher[TableType];
+ if (Disp->State == StNotPresent) {
+ DEBUG ((DEBUG_VERBOSE, "<-DP %02d : EFI_NOT_FOUND\n", TableType));
+ return EFI_NOT_FOUND;
+ }
+
+ if (Disp->State == StDispatched) {
+ DEBUG ((DEBUG_VERBOSE, "<-DP %02d : EFI_ALREADY_STARTED\n", TableType));
+ return EFI_ALREADY_STARTED;
+ }
+
+ // Table is present so check the dependency.
+ for (Index = 0; Index < MAX_SMBIOS_DEPENDENCY; Index++) {
+ // Check if the dependency list is terminated by SMTT_NULL.
+ if (Disp->Dependency[Index] == SMTT_NULL) {
+ break;
+ }
+
+ Status = DispatchSmbiosTable (
+ Disp->Dependency[Index],
+ TableFactoryProtocol,
+ CfgMgrProtocol,
+ SmbiosProtocol,
+ SmbiosTableInfo,
+ SmbiosTableCount
+ );
+ if (EFI_ERROR (Status)) {
+ if ((Status == EFI_ALREADY_STARTED) || (Status == EFI_NOT_FOUND)) {
+ // Some dependencies may already be satisfied
+ // as other tables may also have similar
+ // dependencies i.e. EFI_ALREADY_STARTED
+ // Or
+ // the dependent table may be optional
+ // and not provided i.e. EFI_NOT_FOUND.
+ continue;
+ }
+
+ DEBUG ((DEBUG_VERBOSE, "<-DP %02d : Status = %d\n", TableType, Status));
+ return Status;
+ }
+ }
+
+ DEBUG ((DEBUG_VERBOSE, "DP %02d : Status = %d\n", TableType, Status));
+
+ // All dependencies satisfied - Install SMBIOS table
+ Disp->State = StDispatched;
+ // Find the SMBIOS table info matching the TableType
+ for (Index = 0; Index < SmbiosTableCount; Index++) {
+ if (SmbiosTableInfo[Index].TableType == TableType) {
+ break;
+ }
+ }
+
+ Status = BuildAndInstallSmbiosTable (
+ TableFactoryProtocol,
+ CfgMgrProtocol,
+ SmbiosProtocol,
+ &SmbiosTableInfo[Index]
+ );
+ if (EFI_ERROR (Status)) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "ERROR: Failed to install SMBIOS Table." \
+ " Id = %u Status = %r\n",
+ SmbiosTableInfo[Index].TableGeneratorId,
+ Status
+ ));
+ }
+
+ DEBUG_PRINT_DISPATCHER_STATUS (FALSE);
+ DEBUG ((DEBUG_VERBOSE, "<-DP %0d\n", TableType));
+ return Status;
+}
diff --git
a/DynamicTablesPkg/Drivers/DynamicTableManagerDxe/SmbiosTableDispatcher.h
b/DynamicTablesPkg/Drivers/DynamicTableManagerDxe/SmbiosTableDispatcher.h
new file mode 100644
index
0000000000000000000000000000000000000000..d59eab4223c142293bdaf4905588f08e7a4a467f
--- /dev/null
+++ b/DynamicTablesPkg/Drivers/DynamicTableManagerDxe/SmbiosTableDispatcher.h
@@ -0,0 +1,159 @@
+/** @file
+
+ Copyright (c) 2022 - 2023, Arm Limited. All rights reserved.
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef SMBIOS_TABLE_DISPATCHER_H_
+#define SMBIOS_TABLE_DISPATCHER_H_
+
+#include <Protocol/ConfigurationManagerProtocol.h>
+#include <Protocol/DynamicTableFactoryProtocol.h>
+
+/**
+ A SMBIOS Table Type from the OEM range reserved for terminating
+ the SMBIOS table dispatch dependency.
+
+ Note: According to the SMBIOS specification, Table Types 0
+ through 127 (7Fh) are reserved for and defined by the
+ SMBIOS specification.
+ Types 128 through 256 (80h to FFh) are available for system and
+ OEM-specific information.
+
+ This Dynamic SMBIOS table generation implementation defines
+ TableType FFh as a NULL table which is used by the Dynamic
+ SMBIOS table dispatcher to terminate the dependency list.
+*/
+#define SMTT_NULL 0xFF
+
+/**
+ A macro defining the maximum number of dependendant SMBIOS tables
+ represented by the SMBIOS table dispatcher.
+*/
+#define MAX_SMBIOS_DEPENDENCY 5
+
+/**
+ A macro defining the maximum table types handled by the SMBIOS
+ table dispatcher.
+*/
+#define MAX_SMBIOS_TABLES (SMBIOS_TYPE_STRING_PROPERTY_INFORMATION + 1)
+
+/**
+ A helper macro to populate the SMBIOS table dispatcher table
+*/
+#define SMBIOS_TABLE_DEP(TableId, Dep1, Dep2, Dep3, Dep4, Dep5) \
+ { \
+ TableId, \
+ StNotPresent, \
+ { Dep1, Dep2, Dep3, Dep4, Dep5 } \
+ }
+
+/**
+ An enum describing the states of the SMBIOS table dispatcher.
+*/
+typedef enum SmbiosTableState {
+ StNotPresent, ///< SMBIOS table is not present for installation.
+ StPresent, ///< SMBIOS table is present for installation.
+ StDispatched ///< SMBIOS table generators have been dispatched.
+} SMBIOS_TABLE_STATE;
+
+/**
+ A structure describing the dependencies for a SMBIOS table and
+ the dispatcher state information.
+*/
+typedef struct SmBiosTableDispatcher {
+ /// SMBIOS Structure/Table Type
+ SMBIOS_TABLE_TYPE TableType;
+ /// SMBIOS dispatcher state
+ SMBIOS_TABLE_STATE State;
+ /// SMBIOS Structure/Table dependency list
+ /// The list is terminated using SMTT_NULL.
+ SMBIOS_TABLE_TYPE Dependency[MAX_SMBIOS_DEPENDENCY];
+} SMBIOS_TABLE_DISPATCHER;
+
+/**
+ A helper function to build and install a SMBIOS table.
+
+ @param [in] TableFactoryProtocol Pointer to the Table Factory Protocol
+ interface.
+ @param [in] CfgMgrProtocol Pointer to the Configuration Manager
+ Protocol Interface.
+ @param [in] SmbiosProtocol Pointer to the SMBIOS protocol.
+ @param [in] SmbiosTableInfo Pointer to the SMBIOS table Info.
+
+ @retval EFI_SUCCESS Success.
+ @retval EFI_INVALID_PARAMETER A parameter is invalid.
+ @retval EFI_NOT_FOUND Required object is not found.
+ @retval EFI_BAD_BUFFER_SIZE Size returned by the Configuration Manager
+ is less than the Object size for the
+ requested object.
+**/
+extern
+EFI_STATUS
+EFIAPI
+BuildAndInstallSmbiosTable (
+ IN CONST EDKII_DYNAMIC_TABLE_FACTORY_PROTOCOL *CONST TableFactoryProtocol,
+ IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL *CONST CfgMgrProtocol,
+ IN EFI_SMBIOS_PROTOCOL *SmbiosProtocol,
+ IN CM_STD_OBJ_SMBIOS_TABLE_INFO *CONST SmbiosTableInfo
+ );
+
+/**
+ Initialise the SMBIOS table dispatcher.
+
+ @param SmbiosTableInfo Pointer to the list of SMBIOS tables to be installed.
+ @param SmbiosTableCount Count of SMBIOS tables to be installed.
+**/
+VOID
+EFIAPI
+InitSmbiosTableDispatcher (
+ IN CM_STD_OBJ_SMBIOS_TABLE_INFO *SmbiosTableInfo,
+ IN UINT32 SmbiosTableCount
+ );
+
+/** Schedule the dispatch of a SMBIOS table.
+
+ The SMBIOS dispatcher state table is used to establish the dependency
+ order in which the SMBIOS tables are installed. This allows the SMBIOS
+ dispatcher to dispatch the dependent tables for installation before the
+ parent table is installed.
+ The SMBIOS_TABLE_DISPATCHER.Dependency[] field is used to establish the
+ dependency list.
+ Elements in the Dependency list are resolved by increasing index. However,
+ all orders are equivalent as:
+ - the Parent SMBIOS table will only be installed once all dependencies
+ have been satisfied.
+ - no cyclic dependency is allowed.
+ The dependency list is terminated by SMTT_NULL.
+
+ @param [in] TableType The SMBIOS table type to schedule for
+ dispatch.
+ @param [in] TableFactoryProtocol Pointer to the Table Factory Protocol
+ interface.
+ @param [in] CfgMgrProtocol Pointer to the Configuration Manager
+ Protocol Interface.
+ @param [in] SmbiosProtocol Pointer to the SMBIOS protocol.
+ @param [in] SmbiosTableInfo Pointer to the SMBIOS table Info.
+ @param [in] SmbiosTableCount Count of SMBIOS table info objects.
+
+ @retval EFI_SUCCESS Success.
+ @retval EFI_INVALID_PARAMETER A parameter is invalid.
+ @retval EFI_NOT_FOUND Required object is not found.
+ @retval EFI_BAD_BUFFER_SIZE Size returned by the Configuration Manager
+ is less than the Object size for the
+ requested object.
+**/
+EFI_STATUS
+EFIAPI
+DispatchSmbiosTable (
+ IN CONST SMBIOS_TABLE_TYPE TableType,
+ IN CONST EDKII_DYNAMIC_TABLE_FACTORY_PROTOCOL *CONST TableFactoryProtocol,
+ IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL *CONST CfgMgrProtocol,
+ IN EFI_SMBIOS_PROTOCOL *SmbiosProtocol,
+ IN CM_STD_OBJ_SMBIOS_TABLE_INFO *CONST SmbiosTableInfo,
+ IN CONST UINT32 SmbiosTableCount
+ );
+
+#endif // SMBIOS_TABLE_DISPATCHER_H_
--
'Guid(CE165669-3EF3-493F-B85D-6190EE5B9759)'
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