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/** @file
Polymorphic functions that are called from both the privileged driver (i.e.,
the DXE_SMM variable module) and the non-privileged drivers (i.e., one or
both of the DXE_RUNTIME variable modules).
Each of these functions has two implementations, appropriate for privileged
vs. non-privileged driver code.
Copyright (c) 2017, Red Hat, Inc.<BR>
Copyright (c) 2010 - 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.
**/
#ifndef _PRIVILEGE_POLYMORPHIC_H_
#define _PRIVILEGE_POLYMORPHIC_H_
#include <Uefi/UefiBaseType.h>
/**
SecureBoot Hook for auth variable update.
@param[in] VariableName Name of Variable to be found.
@param[in] VendorGuid Variable vendor GUID.
**/
VOID
EFIAPI
SecureBootHook (
IN CHAR16 *VariableName,
IN EFI_GUID *VendorGuid
);
/**
Initialization for MOR Control Lock.
@retval EFI_SUCCESS MorLock initialization success.
@return Others Some error occurs.
**/
EFI_STATUS
MorLockInit (
VOID
);
/**
Delayed initialization for MOR Control Lock at EndOfDxe.
This function performs any operations queued by MorLockInit().
**/
VOID
MorLockInitAtEndOfDxe (
VOID
);
/**
This service is an MOR/MorLock checker handler for the SetVariable().
@param[in] VariableName the name of the vendor's variable, as a
Null-Terminated Unicode String
@param[in] VendorGuid Unify identifier for vendor.
@param[in] Attributes Attributes bitmask to set for the variable.
@param[in] DataSize The size in bytes of Data-Buffer.
@param[in] Data Point to the content of the variable.
@retval EFI_SUCCESS The MOR/MorLock check pass, and Variable
driver can store the variable data.
@retval EFI_INVALID_PARAMETER The MOR/MorLock data or data size or
attributes is not allowed for MOR variable.
@retval EFI_ACCESS_DENIED The MOR/MorLock is locked.
@retval EFI_ALREADY_STARTED The MorLock variable is handled inside this
function. Variable driver can just return
EFI_SUCCESS.
**/
EFI_STATUS
SetVariableCheckHandlerMor (
IN CHAR16 *VariableName,
IN EFI_GUID *VendorGuid,
IN UINT32 Attributes,
IN UINTN DataSize,
IN VOID *Data
);
/**
This service is consumed by the variable modules to place a barrier to stop
speculative execution.
Ensures that no later instruction will execute speculatively, until all prior
instructions have completed.
**/
VOID
VariableSpeculationBarrier (
VOID
);
#endif
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