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/** @file
Non-existing BaseLib functions on Ia32
Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <Library/DebugLib.h>
/**
Disables the 64-bit paging mode on the CPU.
Disables the 64-bit paging mode on the CPU and returns to 32-bit protected
mode. This function assumes the current execution mode is 64-paging mode.
This function is only available on x64. After the 64-bit paging mode is
disabled, control is transferred to the function specified by EntryPoint
using the new stack specified by NewStack and passing in the parameters
specified by Context1 and Context2. Context1 and Context2 are optional and
may be 0. The function EntryPoint must never return.
@param CodeSelector The 16-bit selector to load in the CS before EntryPoint
is called. The descriptor in the GDT that this selector
references must be setup for 32-bit protected mode.
@param EntryPoint The 64-bit virtual address of the function to call with
the new stack after paging is disabled.
@param Context1 The 64-bit virtual address of the context to pass into
the EntryPoint function as the first parameter after
paging is disabled.
@param Context2 The 64-bit virtual address of the context to pass into
the EntryPoint function as the second parameter after
paging is disabled.
@param NewStack The 64-bit virtual address of the new stack to use for
the EntryPoint function after paging is disabled.
**/
VOID
EFIAPI
InternalX86DisablePaging64 (
IN UINT16 CodeSelector,
IN UINT32 EntryPoint,
IN UINT32 Context1, OPTIONAL
IN UINT32 Context2, OPTIONAL
IN UINT32 NewStack
)
{
//
// This function cannot work on IA32 platform
//
ASSERT (FALSE);
}
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