| 1 | ; $Id: VMMAllA.asm 44529 2013-02-04 15:54:15Z vboxsync $
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| 2 | ;; @file
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| 3 | ; VMM - All Contexts Assembly Routines.
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| 4 | ;
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| 5 |
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| 6 | ;
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| 7 | ; Copyright (C) 2009-2010 Oracle Corporation
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| 8 | ;
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| 9 | ; This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | ; available from http://www.virtualbox.org. This file is free software;
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| 11 | ; you can redistribute it and/or modify it under the terms of the GNU
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| 12 | ; General Public License (GPL) as published by the Free Software
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| 13 | ; Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | ; VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | ; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | ;
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| 17 |
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| 18 | ;*******************************************************************************
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| 19 | ;* Header Files *
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| 20 | ;*******************************************************************************
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| 21 | %include "VBox/asmdefs.mac"
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| 22 |
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| 23 |
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| 24 | ;*******************************************************************************
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| 25 | ;* Defined Constants And Macros *
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| 26 | ;*******************************************************************************
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| 27 | %ifdef IN_RING3
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| 28 | %ifdef RT_ARCH_AMD64
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| 29 | %define VMM_TRASH_XMM_REGS
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| 30 | %endif
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| 31 | %endif
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| 32 | %ifdef IN_RING0
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| 33 | %ifdef RT_ARCH_AMD64
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| 34 | %ifdef RT_OS_WINDOWS
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| 35 | %define VMM_TRASH_XMM_REGS
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| 36 | %endif
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| 37 | %endif
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| 38 | %endif
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| 39 | %ifndef VMM_TRASH_XMM_REGS
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| 40 | %ifdef VBOX_WITH_KERNEL_USING_XMM
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| 41 | %define VMM_TRASH_XMM_REGS
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| 42 | %endif
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| 43 | %endif
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| 44 |
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| 45 | BEGINCODE
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| 46 |
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| 47 |
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| 48 | ;;
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| 49 | ; Trashes the volatile XMM registers in the current ABI.
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| 50 | ;
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| 51 | BEGINPROC VMMTrashVolatileXMMRegs
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| 52 | %ifdef VMM_TRASH_XMM_REGS
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| 53 | push xBP
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| 54 | mov xBP, xSP
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| 55 |
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| 56 | ; take whatever is on the stack.
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| 57 | and xSP, ~15
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| 58 | sub xSP, 80h
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| 59 |
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| 60 | movdqa xmm0, [xSP + 0]
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| 61 | movdqa xmm1, [xSP + 010h]
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| 62 | movdqa xmm2, [xSP + 020h]
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| 63 | movdqa xmm3, [xSP + 030h]
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| 64 | movdqa xmm4, [xSP + 040h]
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| 65 | movdqa xmm5, [xSP + 050h]
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| 66 | %ifdef ASM_CALL64_GCC
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| 67 | movdqa xmm6, [xSP + 060h]
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| 68 | movdqa xmm7, [xSP + 070h]
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| 69 | movdqa xmm8, [xSP + 000h]
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| 70 | movdqa xmm9, [xSP + 010h]
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| 71 | movdqa xmm10,[xSP + 020h]
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| 72 | movdqa xmm11,[xSP + 030h]
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| 73 | movdqa xmm12,[xSP + 040h]
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| 74 | movdqa xmm13,[xSP + 050h]
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| 75 | movdqa xmm14,[xSP + 060h]
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| 76 | movdqa xmm15,[xSP + 070h]
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| 77 | %endif
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| 78 | leave
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| 79 | %endif ; VMM_TRASH_XMM_REGS
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| 80 | xor eax, eax ; for good measure.
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| 81 | ret
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| 82 | ENDPROC VMMTrashVolatileXMMRegs
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| 83 |
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