diff options
Diffstat (limited to 'src/VBox/Devices/EFI/Firmware/UefiCpuPkg/Library/SmmCpuFeaturesLib/SmmCpuFeaturesLibNoStm.c')
-rw-r--r-- | src/VBox/Devices/EFI/Firmware/UefiCpuPkg/Library/SmmCpuFeaturesLib/SmmCpuFeaturesLibNoStm.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/UefiCpuPkg/Library/SmmCpuFeaturesLib/SmmCpuFeaturesLibNoStm.c b/src/VBox/Devices/EFI/Firmware/UefiCpuPkg/Library/SmmCpuFeaturesLib/SmmCpuFeaturesLibNoStm.c new file mode 100644 index 00000000..6baa6030 --- /dev/null +++ b/src/VBox/Devices/EFI/Firmware/UefiCpuPkg/Library/SmmCpuFeaturesLib/SmmCpuFeaturesLibNoStm.c @@ -0,0 +1,84 @@ +/** @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 + ) +{ +} |