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- /** @file
- Platform CMOS Access Library.
- @copyright
- Copyright 2015 - 2021 Intel Corporation. <BR>
- SPDX-License-Identifier: BSD-2-Clause-Patent
- **/
- #include <Library/IoLib.h>
- #include <Library/PlatformCmosAccessLib.h>
- #include <Platform.h>
- #include <Uefi.h>
- #include <PiPei.h>
- #include <Library/PchInfoLib.h>
- #include <Register/PchRegsPcr.h>
- #include <Library/PeiServicesLib.h>
- #include <Ppi/DynamicSiLibraryPpi.h>
- #include <Library/DebugLib.h>
- /**
- Return the platform CMOS entries.
- @param [out] EnryCount Number of platform CMOS entries.
- @return Platform CMOS entries.
- **/
- CMOS_ENTRY *
- EFIAPI
- PlatformCmosGetEntry (
- OUT UINTN *EntryCount
- )
- {
- *EntryCount = 0;
- return NULL;
- }
- /**
- Return the NMI enable status.
- **/
- BOOLEAN
- EFIAPI
- PlatformCmosGetNmiState (
- VOID
- )
- {
- BOOLEAN Nmi;
- EFI_STATUS Status = EFI_SUCCESS;
- DYNAMIC_SI_LIBARY_PPI *DynamicSiLibraryPpi = NULL;
- Status = PeiServicesLocatePpi (&gDynamicSiLibraryPpiGuid, 0, NULL, (VOID **) &DynamicSiLibraryPpi);
- if (EFI_ERROR (Status)) {
- ASSERT_EFI_ERROR (Status);
- return FALSE;
- }
- //
- // Preserve NMI bit setting
- //
- if ((DynamicSiLibraryPpi->ReadNmiEn ())& B_PCH_IO_NMI_EN_NMI_EN) {
- Nmi = TRUE;
- }
- else
- Nmi = FALSE;
- return Nmi;
- }
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