60 lines
1.3 KiB
C
60 lines
1.3 KiB
C
/** @file
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UEFI Null Stall service implementation
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Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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EFI_STATUS
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EFIAPI
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NullStall (
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IN UINTN Microseconds
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);
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/**
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Introduces a Null stall function to override bootservice stall function.
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@param Microseconds The number of microseconds to stall execution.
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@retval EFI_SUCCESS Execution was stalled for NULL Seconds.
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**/
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EFI_STATUS
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EFIAPI
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NullStall (
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IN UINTN Microseconds
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)
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{
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return EFI_SUCCESS;
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}
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/**
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Entry point of the NULL STALL DXE driver.
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@param ImageHandle ImageHandle
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@param SystemTable Pointer to System Table
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@return EFI_STATUS
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**/
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EFI_STATUS
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EFIAPI
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NullStallEntryPoint(
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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///
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/// Hook the BootTime service table Stall Function with Dummy Stall
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///
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SystemTable->BootServices->Stall = NullStall;
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return EFI_SUCCESS;
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}
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