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|
; $Id: VMMAllA.asm $
;; @file
; VMM - All Contexts Assembly Routines.
;
;
; Copyright (C) 2009-2020 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
|
