WinThunk.c File Reference

#include "WinHost.h"

Go to the source code of this file.

Functions
UINTN	SecWriteStdErr (IN UINT8 *Buffer, IN UINTN NumberOfBytes)
EFI_STATUS	SecConfigStdIn (VOID)
UINTN	SecWriteStdOut (IN UINT8 *Buffer, IN UINTN NumberOfBytes)
BOOLEAN	SecPollStdIn (VOID)
UINTN	SecReadStdIn (IN UINT8 *Buffer, IN UINTN NumberOfBytes)
VOID *	SecAlloc (IN UINTN Size)
BOOLEAN	SecFree (IN VOID *Ptr)
VOID CALLBACK	MMTimerThread (UINT wTimerID, UINT msg, DWORD_PTR dwUser, DWORD_PTR dw1, DWORD_PTR dw2)
VOID	SecSetTimer (IN UINT64 TimerPeriod, IN EMU_SET_TIMER_CALLBACK Callback)
VOID	SecInitializeThunk (VOID)
VOID	SecEnableInterrupt (VOID)
VOID	SecDisableInterrupt (VOID)
UINT64	SecQueryPerformanceFrequency (VOID)
UINT64	SecQueryPerformanceCounter (VOID)
VOID	SecSleep (IN UINT64 Nanoseconds)
VOID	SecCpuSleep (VOID)
VOID	SecExit (UINTN Status)
VOID	SecGetTime (OUT EFI_TIME *Time, OUT EFI_TIME_CAPABILITIES *Capabilities OPTIONAL)
EFI_STATUS	SecSetTime (IN EFI_TIME *Time)

Variables
STATIC BOOLEAN	mEmulatorStdInConfigured = FALSE
STATIC DWORD	mOldStdInMode
STATIC UINT64	mPerformanceFrequency = 0
BOOLEAN	mCancelTimerThread = FALSE
EMU_SET_TIMER_CALLBACK *	mTimerNotifyFunction = NULL
HANDLE	mNtMainThreadHandle
UINT32	mNtLastTick
CRITICAL_SECTION	mNtCriticalSection
UINT	mMMTimerThreadID = 0
volatile BOOLEAN	mInterruptEnabled = FALSE
EMU_THUNK_PROTOCOL	gEmuThunkProtocol

Detailed Description

Copyright (c) 2006 - 2023, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Module Name:

WinThunk.c

Abstract:

Since the SEC is the only windows program in our emulation we must use a Tiano mechanism to export operating system services to other modules. This is the role of the EMU_THUNK_PROTOCOL.

The gEmuThunkProtocol exists so that a change to EMU_THUNK_PROTOCOL will cause an error in initializing the array if all the member functions are not added. It looks like adding a element to end and not initializing it may cause the table to be initalized with the members at the end being set to zero. This is bad as jumping to zero will case EmulatorPkg to crash.

Definition in file WinThunk.c.

Function Documentation

MMTimerThread()

VOID CALLBACK MMTimerThread	(	UINT	wTimerID,
		UINT	msg,
		DWORD_PTR	dwUser,
		DWORD_PTR	dw1,
		DWORD_PTR	dw2
	)

Definition at line 268 of file WinThunk.c.

SecAlloc()

VOID * SecAlloc

(

IN UINTN

Size

)

Definition at line 210 of file WinThunk.c.

SecConfigStdIn()

EFI_STATUS SecConfigStdIn

(

VOID

)

Definition at line 56 of file WinThunk.c.

SecCpuSleep()

VOID SecCpuSleep

(

VOID

)

Definition at line 486 of file WinThunk.c.

SecDisableInterrupt()

VOID SecDisableInterrupt

(

VOID

)

Definition at line 444 of file WinThunk.c.

SecEnableInterrupt()

VOID SecEnableInterrupt

(

VOID

)

Definition at line 436 of file WinThunk.c.

SecExit()

VOID SecExit

(

UINTN

Status

)

Definition at line 494 of file WinThunk.c.

SecFree()

BOOLEAN SecFree

(

IN VOID *

Ptr

)

Definition at line 218 of file WinThunk.c.

SecGetTime()

VOID SecGetTime	(	OUT EFI_TIME *	Time,
		OUT EFI_TIME_CAPABILITIES *Capabilities	OPTIONAL
	)

Definition at line 517 of file WinThunk.c.

SecInitializeThunk()

VOID SecInitializeThunk

(

VOID

)

Definition at line 418 of file WinThunk.c.

SecPollStdIn()

BOOLEAN SecPollStdIn

(

VOID

)

Definition at line 138 of file WinThunk.c.

SecQueryPerformanceCounter()

UINT64 SecQueryPerformanceCounter

(

VOID

)

Definition at line 466 of file WinThunk.c.

SecQueryPerformanceFrequency()

UINT64 SecQueryPerformanceFrequency

(

VOID

)

Definition at line 452 of file WinThunk.c.

SecReadStdIn()

UINTN SecReadStdIn	(	IN UINT8 *	Buffer,
		IN UINTN	NumberOfBytes
	)

Definition at line 179 of file WinThunk.c.

SecSetTime()

EFI_STATUS SecSetTime

(

IN EFI_TIME *

Time

)

Definition at line 550 of file WinThunk.c.

SecSetTimer()

VOID SecSetTimer	(	IN UINT64	TimerPeriod,
		IN EMU_SET_TIMER_CALLBACK	Callback
	)

Definition at line 355 of file WinThunk.c.

SecSleep()

VOID SecSleep

(

IN UINT64

Nanoseconds

)

Definition at line 478 of file WinThunk.c.

SecWriteStdErr()

UINTN SecWriteStdErr	(	IN UINT8 *	Buffer,
		IN UINTN	NumberOfBytes
	)

Definition at line 35 of file WinThunk.c.

SecWriteStdOut()

UINTN SecWriteStdOut	(	IN UINT8 *	Buffer,
		IN UINTN	NumberOfBytes
	)

Definition at line 117 of file WinThunk.c.

Variable Documentation

gEmuThunkProtocol

EMU_THUNK_PROTOCOL gEmuThunkProtocol

Initial value:

= {
  SecWriteStdErr,
  SecConfigStdIn,
  SecWriteStdOut,
  SecReadStdIn,
  SecPollStdIn,
  SecAlloc,
  NULL,
  SecFree,
  SecPeCoffGetEntryPoint,
  PeCoffLoaderRelocateImageExtraAction,
  PeCoffLoaderUnloadImageExtraAction,
  SecEnableInterrupt,
  SecDisableInterrupt,
  SecQueryPerformanceFrequency,
  SecQueryPerformanceCounter,
  SecSleep,
  SecCpuSleep,
  SecExit,
  SecGetTime,
  SecSetTime,
  SecSetTimer,
  GetNextThunkProtocol
}

Definition at line 586 of file WinThunk.c.

mCancelTimerThread

BOOLEAN mCancelTimerThread = FALSE

Definition at line 236 of file WinThunk.c.

mEmulatorStdInConfigured

STATIC BOOLEAN mEmulatorStdInConfigured = FALSE

Definition at line 26 of file WinThunk.c.

mInterruptEnabled

volatile BOOLEAN mInterruptEnabled = FALSE

Definition at line 264 of file WinThunk.c.

mMMTimerThreadID

UINT mMMTimerThreadID = 0

Definition at line 262 of file WinThunk.c.

mNtCriticalSection

CRITICAL_SECTION mNtCriticalSection

Definition at line 257 of file WinThunk.c.

mNtLastTick

UINT32 mNtLastTick

Definition at line 251 of file WinThunk.c.

mNtMainThreadHandle

HANDLE mNtMainThreadHandle

Definition at line 246 of file WinThunk.c.

mOldStdInMode

STATIC DWORD mOldStdInMode

Definition at line 27 of file WinThunk.c.

mPerformanceFrequency

STATIC UINT64 mPerformanceFrequency = 0

Definition at line 32 of file WinThunk.c.

mTimerNotifyFunction

EMU_SET_TIMER_CALLBACK* mTimerNotifyFunction = NULL

Definition at line 241 of file WinThunk.c.