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-rw-r--r--Vlv2TbltDevicePkg/Library/PchSmmLib/PchSmmLib.c157
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diff --git a/Vlv2TbltDevicePkg/Library/PchSmmLib/PchSmmLib.c b/Vlv2TbltDevicePkg/Library/PchSmmLib/PchSmmLib.c
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--- a/Vlv2TbltDevicePkg/Library/PchSmmLib/PchSmmLib.c
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-/** @file
- PCH Smm Library Services that implements both S/W SMI generation and detection.
-
- Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR>
-
- SPDX-License-Identifier: BSD-2-Clause-Patent
-
-
-
-**/
-
-
-#include "CommonHeader.h"
-
-
-/**
- Triggers a run time or boot time SMI.
-
- This function triggers a software SMM interrupt and set the APMC status with an 8-bit Data.
-
- @param Data The value to set the APMC status.
-
-**/
-VOID
-InternalTriggerSmi (
- IN UINT8 Data
- )
-{
- ASSERT(FALSE);
-}
-
-
-/**
- Triggers an SMI at boot time.
-
- This function triggers a software SMM interrupt at boot time.
-
-**/
-VOID
-EFIAPI
-TriggerBootServiceSoftwareSmi (
- VOID
- )
-{
- ASSERT(FALSE);
-}
-
-
-/**
- Triggers an SMI at run time.
-
- This function triggers a software SMM interrupt at run time.
-
-**/
-VOID
-EFIAPI
-TriggerRuntimeSoftwareSmi (
- VOID
- )
-{
- ASSERT(FALSE);
-}
-
-
-/**
- Gets the software SMI data.
-
- This function tests if a software SMM interrupt happens. If a software SMI happens,
- it retrieves the SMM data and returns it as a non-negative value; otherwise a negative
- value is returned.
-
- @return Data The data retrieved from SMM data port in case of a software SMI;
- otherwise a negative value.
-
-**/
-INTN
-InternalGetSwSmiData (
- VOID
- )
-{
- ASSERT(FALSE);
- return -1;
-}
-
-
-/**
- Test if a boot time software SMI happened.
-
- This function tests if a software SMM interrupt happened. If a software SMM interrupt happened and
- it was triggered at boot time, it returns TRUE. Otherwise, it returns FALSE.
-
- @retval TRUE A software SMI triggered at boot time happened.
- @retval FLASE No software SMI happened or the software SMI was triggered at run time.
-
-**/
-BOOLEAN
-EFIAPI
-IsBootServiceSoftwareSmi (
- VOID
- )
-{
- ASSERT(FALSE);
- return FALSE;
-}
-
-
-/**
- Test if a run time software SMI happened.
-
- This function tests if a software SMM interrupt happened. If a software SMM interrupt happened and
- it was triggered at run time, it returns TRUE. Otherwise, it returns FALSE.
-
- @retval TRUE A software SMI triggered at run time happened.
- @retval FLASE No software SMI happened or the software SMI was triggered at boot time.
-
-**/
-BOOLEAN
-EFIAPI
-IsRuntimeSoftwareSmi (
- VOID
- )
-{
- ASSERT(FALSE);
- return FALSE;
-}
-
-
-/**
-
- Clear APM SMI Status Bit; Set the EOS bit.
-
-**/
-VOID
-EFIAPI
-ClearSmi (
- VOID
- )
-{
-
- UINT16 PmBase;
-
- //
- // Get PMBase
- //
- PmBase = PcdGet16 (PcdPchAcpiIoPortBaseAddress);
-
- //
- // Clear the APM SMI Status Bit
- //
- IoWrite16 (PmBase + R_PCH_ACPI_SMI_STS, B_PCH_ACPI_APM_STS);
-
- //
- // Set the EOS Bit
- //
- IoOr32 (PmBase + R_PCH_ACPI_SMI_EN, B_PCH_ACPI_EOS);
-}
-