; $Id$

;; @file

; VMM - All Contexts Assembly Routines.

;

;

; Copyright (C) 2010 Oracle Corporation

;

; This file is part of VirtualBox Open Source Edition (OSE), as

; available from http://www.virtualbox.org. This file is free software;

; you can redistribute it and/or modify it under the terms of the GNU

; General Public License (GPL) as published by the Free Software

; Foundation, in version 2 as it comes in the "COPYING" file of the

; VirtualBox OSE distribution. VirtualBox OSE is distributed in the

; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.

;

;*******************************************************************************

;* Header Files *

;*******************************************************************************

%include "VBox/asmdefs.mac"

;*******************************************************************************

;* Defined Constants And Macros *

;*******************************************************************************

%ifdef IN_RING3

%ifdef RT_ARCH_AMD64

%define VMM_TRASH_XMM_REGS

%endif

%endif

%ifdef IN_RING0

%ifdef RT_ARCH_AMD64

%ifdef RT_OS_WINDOWS

%define VMM_TRASH_XMM_REGS

%endif

%endif

%endif

%ifndef VMM_TRASH_XMM_REGS

%ifdef VBOX_WITH_KERNEL_USING_XMM

%define VMM_TRASH_XMM_REGS

%endif

%endif

BEGINCODE

;;

; Trashes the volatile XMM registers in the current ABI.

;

BEGINPROC VMMTrashVolatileXMMRegs

%ifdef VMM_TRASH_XMM_REGS

push xBP

mov xBP, xSP

; take whatever is on the stack.

and xSP, ~15

sub xSP, 80h

movdqa xmm0, [xSP + 0]

movdqa xmm1, [xSP + 010h]

movdqa xmm2, [xSP + 020h]

movdqa xmm3, [xSP + 030h]

movdqa xmm4, [xSP + 040h]

movdqa xmm5, [xSP + 050h]

%ifdef ASM_CALL64_GCC

movdqa xmm6, [xSP + 060h]

movdqa xmm7, [xSP + 070h]

movdqa xmm8, [xSP + 000h]

movdqa xmm9, [xSP + 010h]

movdqa xmm10,[xSP + 020h]

movdqa xmm11,[xSP + 030h]

movdqa xmm12,[xSP + 040h]

movdqa xmm13,[xSP + 050h]

movdqa xmm14,[xSP + 060h]

movdqa xmm15,[xSP + 070h]

%endif

leave

%endif ; VMM_TRASH_XMM_REGS

xor eax, eax ; for good measure.

ret

ENDPROC VMMTrashVolatileXMMRegs