58 lines
1.8 KiB
ArmAsm
58 lines
1.8 KiB
ArmAsm
/* $NetBSD: x86_64-asm.S,v 1.7 2019/05/21 05:29:21 mlelstv Exp $ */
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/*-
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* Copyright (c) 2007 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <machine/asm.h>
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/* From sys/arch/x86/include/cpufunc.h */
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#define OPTERON_MSR_PASSCODE 0x9c5a203aU
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.text
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ENTRY(x86_cpuid2)
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pushq %rbx
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movq %rdi, %rax
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movq %rsi, %rcx
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movq %rdx, %rsi
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cpuid
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movl %eax, 0(%rsi)
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movl %ebx, 4(%rsi)
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movl %ecx, 8(%rsi)
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movl %edx, 12(%rsi)
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popq %rbx
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ret
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ENTRY(x86_xgetbv)
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xorl %ecx, %ecx
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xgetbv
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ret
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ENTRY(x86_identify)
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movl $-1,%eax
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ret
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