xref: /freebsd/sys/x86/include/vmware.h (revision e0c4386e7e71d93b0edc0c8fa156263fc4a8b0b6)
1 /*-
2  * Copyright (c) 2011-2014 Jung-uk Kim <jkim@FreeBSD.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  */
26 
27 #ifndef _X86_VMWARE_H_
28 #define	_X86_VMWARE_H_
29 
30 #define	VMW_HVMAGIC		0x564d5868
31 #define	VMW_HVPORT		0x5658
32 
33 #define	VMW_HVCMD_GETVERSION	10
34 #define	VMW_HVCMD_GETHZ		45
35 #define	VMW_HVCMD_GETVCPU_INFO	68
36 
37 #define	VMW_VCPUINFO_LEGACY_X2APIC	(1 << 3)
38 #define	VMW_VCPUINFO_VCPU_RESERVED	(1 << 31)
39 
40 static __inline void
41 vmware_hvcall(u_int cmd, u_int *p)
42 {
43 
44 	__asm __volatile("inl %w3, %0"
45 	: "=a" (p[0]), "=b" (p[1]), "=c" (p[2]), "=d" (p[3])
46 	: "0" (VMW_HVMAGIC), "1" (UINT_MAX), "2" (cmd), "3" (VMW_HVPORT)
47 	: "memory");
48 }
49 
50 #endif /* !_X86_VMWARE_H_ */
51