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- /** @file
- The CPU specific programming for PiSmmCpuDxeSmm module when STM support
- is not included.
- Copyright (c) 2010 - 2016, Intel Corporation. All rights reserved.<BR>
- SPDX-License-Identifier: BSD-2-Clause-Patent
- **/
- #include <PiMm.h>
- #include <Library/SmmCpuFeaturesLib.h>
- #include "CpuFeaturesLib.h"
- /**
- Internal worker function that is called to complete CPU initialization at the
- end of SmmCpuFeaturesInitializeProcessor().
- **/
- VOID
- FinishSmmCpuFeaturesInitializeProcessor (
- VOID
- )
- {
- }
- /**
- Return the size, in bytes, of a custom SMI Handler in bytes. If 0 is
- returned, then a custom SMI handler is not provided by this library,
- and the default SMI handler must be used.
- @retval 0 Use the default SMI handler.
- @retval > 0 Use the SMI handler installed by SmmCpuFeaturesInstallSmiHandler()
- The caller is required to allocate enough SMRAM for each CPU to
- support the size of the custom SMI handler.
- **/
- UINTN
- EFIAPI
- SmmCpuFeaturesGetSmiHandlerSize (
- VOID
- )
- {
- return 0;
- }
- /**
- Install a custom SMI handler for the CPU specified by CpuIndex. This function
- is only called if SmmCpuFeaturesGetSmiHandlerSize() returns a size is greater
- than zero and is called by the CPU that was elected as monarch during System
- Management Mode initialization.
- @param[in] CpuIndex The index of the CPU to install the custom SMI handler.
- The value must be between 0 and the NumberOfCpus field
- in the System Management System Table (SMST).
- @param[in] SmBase The SMBASE address for the CPU specified by CpuIndex.
- @param[in] SmiStack The stack to use when an SMI is processed by the
- the CPU specified by CpuIndex.
- @param[in] StackSize The size, in bytes, if the stack used when an SMI is
- processed by the CPU specified by CpuIndex.
- @param[in] GdtBase The base address of the GDT to use when an SMI is
- processed by the CPU specified by CpuIndex.
- @param[in] GdtSize The size, in bytes, of the GDT used when an SMI is
- processed by the CPU specified by CpuIndex.
- @param[in] IdtBase The base address of the IDT to use when an SMI is
- processed by the CPU specified by CpuIndex.
- @param[in] IdtSize The size, in bytes, of the IDT used when an SMI is
- processed by the CPU specified by CpuIndex.
- @param[in] Cr3 The base address of the page tables to use when an SMI
- is processed by the CPU specified by CpuIndex.
- **/
- VOID
- EFIAPI
- SmmCpuFeaturesInstallSmiHandler (
- IN UINTN CpuIndex,
- IN UINT32 SmBase,
- IN VOID *SmiStack,
- IN UINTN StackSize,
- IN UINTN GdtBase,
- IN UINTN GdtSize,
- IN UINTN IdtBase,
- IN UINTN IdtSize,
- IN UINT32 Cr3
- )
- {
- }
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