75 lines
2.6 KiB
C
75 lines
2.6 KiB
C
/** @file
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PEI Chipset Services Library.
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This file contains only one function that is PeiCsSvcModifyMemoryRange().
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The function PeiCsSvcModifyMemoryRange() use chipset services to modify
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memory range setting.
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***************************************************************************
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* Copyright (c) 2012, Insyde Software Corp. All Rights Reserved.
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*
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* You may not reproduce, distribute, publish, display, perform, modify, adapt,
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* transmit, broadcast, present, recite, release, license or otherwise exploit
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* any part of this publication in any form, by any means, without the prior
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* written permission of Insyde Software Corporation.
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*
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******************************************************************************
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*/
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#include <PiPei.h>
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#include <Library/DebugLib.h>
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#include <Library/PeiServicesLib.h>
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#include <Ppi/H2OPeiChipsetServices.h>
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/**
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To modify memory range setting.
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@param[in, out] OptionRomMask A pointer to PEI_MEMORY_RANGE_OPTION_ROM
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@param[in, out] SmramMask A pointer to PEI_MEMORY_RANGE_SMRAM
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@param[in, out] GraphicsMemoryMask A pointer to PEI_MEMORY_RANGE_GRAPHICS_MEMORY
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@param[in, out] PciMemoryMask A pointer to PEI_MEMORY_RANGE_PCI_MEMORY
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@retval EFI_SUCCESS Function returns successfully
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@retval EFI_UNSUPPORTED If the function is not implemented.
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*/
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EFI_STATUS
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EFIAPI
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PeiCsSvcModifyMemoryRange (
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IN OUT PEI_MEMORY_RANGE_OPTION_ROM *OptionRomMask,
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IN OUT PEI_MEMORY_RANGE_SMRAM *SmramMask,
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IN OUT PEI_MEMORY_RANGE_GRAPHICS_MEMORY *GraphicsMemoryMask,
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IN OUT PEI_MEMORY_RANGE_PCI_MEMORY *PciMemoryMask
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)
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{
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EFI_STATUS Status;
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H2O_CHIPSET_SERVICES_PPI *ChipsetSvcPpi;
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ChipsetSvcPpi = NULL;
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Status = PeiServicesLocatePpi (
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&gH2OChipsetServicesPpiGuid,
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0,
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NULL,
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(VOID **)&ChipsetSvcPpi
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);
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if (EFI_ERROR(Status)) {
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DEBUG ((EFI_D_ERROR, "H2O PEI Chipset Services can not be found!\n"));
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return EFI_UNSUPPORTED;
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}
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//
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// Verify that the PPI interface structure contains the function
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// pointer and whether that function pointer is non-NULL. If not, return
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// an error.
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//
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if (ChipsetSvcPpi == NULL ||
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ChipsetSvcPpi->Size < (OFFSET_OF (H2O_CHIPSET_SERVICES_PPI, ModifyMemoryRange) + sizeof (VOID*)) ||
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ChipsetSvcPpi->ModifyMemoryRange == NULL) {
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DEBUG ((EFI_D_ERROR, "H2O PEI Chipset Services is NULL or member ModifyMemoryRange() isn't implement!\n"));
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return EFI_UNSUPPORTED;
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}
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return ChipsetSvcPpi->ModifyMemoryRange (OptionRomMask, SmramMask, GraphicsMemoryMask, PciMemoryMask);
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}
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