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      1 /*	$NetBSD: vmware.h,v 1.1 2022/10/25 23:39:01 riastradh Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2022 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef _ASM_VMWARE_H_
     30 #define _ASM_VMWARE_H_
     31 
     32 #include <sys/cdefs.h>
     33 
     34 #if defined __i386__ || defined __x86_64__
     35 
     36 #define	VMWARE_HYPERVISOR_PORT		0x5658
     37 #define	VMWARE_HYPERVISOR_PORT_HB	0x5659
     38 
     39 #define	VMWARE_HYPERVISOR_HB		__BIT(0)
     40 #define	VMWARE_HYPERVISOR_OUT		__BIT(1)
     41 
     42 /* XXX support vmcall/vmmcall */
     43 #define	VMWARE_HYPERCALL						      \
     44 	"movw $"__STRING(VMWARE_HYPERVISOR_PORT)",%%dx;"		      \
     45 	"inl (%%dx),%%eax;"
     46 
     47 #define	VMWARE_HYPERCALL_HB_OUT						      \
     48 	"movw $"__STRING(VMWARE_HYPERVISOR_PORT_HB)",%%dx;"		      \
     49 	"rep outsb;"
     50 
     51 #define	VMWARE_HYPERCALL_HB_IN						      \
     52 	"movw $"__STRING(VMWARE_HYPERVISOR_PORT_HB)",%%dx;"		      \
     53 	"rep insb;"
     54 
     55 #endif
     56 
     57 #endif  /* _ASM_BARRIER_H_ */
     58