6c252691c3
Current DxeResetSystemLib depends on UefiRuntimeLib because it calls EfiResetSystem() API exposed by UefiRuntimeLib. Due to the commit: "MdePkg/UefiRuntimeLib: Do not allow to be linked by DXE driver" which reverts UefiRuntimeLib to only support DXE_RUNTIME_DRIVER, removing UefiRuntimeLib dependency makes the DxeResetSystemLib can be used by DXE drivers. The patch also disallows the DxeResetSystemLib to be linked by runtime driver, SMM drivers. Runtime driver cannot link to this library because the gRT is not converted when entering to RT. SMM driver cannot link to this library because calling RT services from SMM after EndOfDxe violates security guideline. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com> Cc: Liming Gao <liming.gao@intel.com>
99 lines
2.8 KiB
C
99 lines
2.8 KiB
C
/** @file
|
|
DXE Reset System Library instance that calls gRT->ResetSystem().
|
|
|
|
Copyright (c) 2017 - 2018, Intel Corporation. All rights reserved.<BR>
|
|
This program and the accompanying materials
|
|
are licensed and made available under the terms and conditions of the BSD License
|
|
which accompanies this distribution. The full text of the license may be found at
|
|
http://opensource.org/licenses/bsd-license.php
|
|
|
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
|
|
**/
|
|
|
|
#include <PiDxe.h>
|
|
#include <Library/ResetSystemLib.h>
|
|
#include <Library/UefiRuntimeServicesTableLib.h>
|
|
|
|
/**
|
|
This function causes a system-wide reset (cold reset), in which
|
|
all circuitry within the system returns to its initial state. This type of reset
|
|
is asynchronous to system operation and operates without regard to
|
|
cycle boundaries.
|
|
|
|
If this function returns, it means that the system does not support cold reset.
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
ResetCold (
|
|
VOID
|
|
)
|
|
{
|
|
gRT->ResetSystem (EfiResetCold, EFI_SUCCESS, 0, NULL);
|
|
}
|
|
|
|
/**
|
|
This function causes a system-wide initialization (warm reset), in which all processors
|
|
are set to their initial state. Pending cycles are not corrupted.
|
|
|
|
If this function returns, it means that the system does not support warm reset.
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
ResetWarm (
|
|
VOID
|
|
)
|
|
{
|
|
gRT->ResetSystem (EfiResetWarm, EFI_SUCCESS, 0, NULL);
|
|
}
|
|
|
|
/**
|
|
This function causes the system to enter a power state equivalent
|
|
to the ACPI G2/S5 or G3 states.
|
|
|
|
If this function returns, it means that the system does not support shut down reset.
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
ResetShutdown (
|
|
VOID
|
|
)
|
|
{
|
|
gRT->ResetSystem (EfiResetShutdown, EFI_SUCCESS, 0, NULL);
|
|
}
|
|
|
|
/**
|
|
This function causes the system to enter S3 and then wake up immediately.
|
|
|
|
If this function returns, it means that the system does not support S3 feature.
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
EnterS3WithImmediateWake (
|
|
VOID
|
|
)
|
|
{
|
|
}
|
|
|
|
/**
|
|
This function causes a systemwide reset. The exact type of the reset is
|
|
defined by the EFI_GUID that follows the Null-terminated Unicode string passed
|
|
into ResetData. If the platform does not recognize the EFI_GUID in ResetData
|
|
the platform must pick a supported reset type to perform.The platform may
|
|
optionally log the parameters from any non-normal reset that occurs.
|
|
|
|
@param[in] DataSize The size, in bytes, of ResetData.
|
|
@param[in] ResetData The data buffer starts with a Null-terminated string,
|
|
followed by the EFI_GUID.
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
ResetPlatformSpecific (
|
|
IN UINTN DataSize,
|
|
IN VOID *ResetData
|
|
)
|
|
{
|
|
gRT->ResetSystem (EfiResetPlatformSpecific, EFI_SUCCESS, DataSize, ResetData);
|
|
}
|