| 1 | ; $Id: VMMAllA.asm 56287 2015-06-09 11:15:22Z vboxsync $
|
|---|
| 2 | ;; @file
|
|---|
| 3 | ; VMM - All Contexts Assembly Routines.
|
|---|
| 4 | ;
|
|---|
| 5 |
|
|---|
| 6 | ;
|
|---|
| 7 | ; Copyright (C) 2009-2015 Oracle Corporation
|
|---|
| 8 | ;
|
|---|
| 9 | ; This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | ; available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | ; you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | ; General Public License (GPL) as published by the Free Software
|
|---|
| 13 | ; Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | ; VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | ; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | ;
|
|---|
| 17 |
|
|---|
| 18 | ;*******************************************************************************
|
|---|
| 19 | ;* Header Files *
|
|---|
| 20 | ;*******************************************************************************
|
|---|
| 21 | %include "VBox/asmdefs.mac"
|
|---|
| 22 |
|
|---|
| 23 |
|
|---|
| 24 | ;*******************************************************************************
|
|---|
| 25 | ;* Defined Constants And Macros *
|
|---|
| 26 | ;*******************************************************************************
|
|---|
| 27 | %ifdef IN_RING3
|
|---|
| 28 | %ifdef RT_ARCH_AMD64
|
|---|
| 29 | %define VMM_TRASH_XMM_REGS
|
|---|
| 30 | %endif
|
|---|
| 31 | %endif
|
|---|
| 32 | %ifdef IN_RING0
|
|---|
| 33 | %ifdef RT_ARCH_AMD64
|
|---|
| 34 | %ifdef RT_OS_WINDOWS
|
|---|
| 35 | %define VMM_TRASH_XMM_REGS
|
|---|
| 36 | %endif
|
|---|
| 37 | %endif
|
|---|
| 38 | %endif
|
|---|
| 39 | %ifndef VMM_TRASH_XMM_REGS
|
|---|
| 40 | %ifdef VBOX_WITH_KERNEL_USING_XMM
|
|---|
| 41 | %define VMM_TRASH_XMM_REGS
|
|---|
| 42 | %endif
|
|---|
| 43 | %endif
|
|---|
| 44 |
|
|---|
| 45 | BEGINCODE
|
|---|
| 46 |
|
|---|
| 47 |
|
|---|
| 48 | ;;
|
|---|
| 49 | ; Trashes the volatile XMM registers in the current ABI.
|
|---|
| 50 | ;
|
|---|
| 51 | BEGINPROC VMMTrashVolatileXMMRegs
|
|---|
| 52 | %ifdef VMM_TRASH_XMM_REGS
|
|---|
| 53 | push xBP
|
|---|
| 54 | mov xBP, xSP
|
|---|
| 55 |
|
|---|
| 56 | ; take whatever is on the stack.
|
|---|
| 57 | and xSP, ~15
|
|---|
| 58 | sub xSP, 80h
|
|---|
| 59 |
|
|---|
| 60 | movdqa xmm0, [xSP + 0]
|
|---|
| 61 | movdqa xmm1, [xSP + 010h]
|
|---|
| 62 | movdqa xmm2, [xSP + 020h]
|
|---|
| 63 | movdqa xmm3, [xSP + 030h]
|
|---|
| 64 | movdqa xmm4, [xSP + 040h]
|
|---|
| 65 | movdqa xmm5, [xSP + 050h]
|
|---|
| 66 | %ifdef ASM_CALL64_GCC
|
|---|
| 67 | movdqa xmm6, [xSP + 060h]
|
|---|
| 68 | movdqa xmm7, [xSP + 070h]
|
|---|
| 69 | movdqa xmm8, [xSP + 000h]
|
|---|
| 70 | movdqa xmm9, [xSP + 010h]
|
|---|
| 71 | movdqa xmm10,[xSP + 020h]
|
|---|
| 72 | movdqa xmm11,[xSP + 030h]
|
|---|
| 73 | movdqa xmm12,[xSP + 040h]
|
|---|
| 74 | movdqa xmm13,[xSP + 050h]
|
|---|
| 75 | movdqa xmm14,[xSP + 060h]
|
|---|
| 76 | movdqa xmm15,[xSP + 070h]
|
|---|
| 77 | %endif
|
|---|
| 78 | leave
|
|---|
| 79 | %endif ; VMM_TRASH_XMM_REGS
|
|---|
| 80 | xor eax, eax ; for good measure.
|
|---|
| 81 | ret
|
|---|
| 82 | ENDPROC VMMTrashVolatileXMMRegs
|
|---|
| 83 |
|
|---|
