xref: /freebsd/sys/amd64/vmm/amd/svm.h (revision 031beb4e239bfce798af17f5fe8dba8bcaf13d99)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2013 Anish Gupta (akgupt3@gmail.com)
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 unmodified, this list of conditions, and the following
12  *    disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 #ifndef _SVM_H_
30 #define _SVM_H_
31 
32 struct pcpu;
33 struct svm_softc;
34 struct svm_vcpu;
35 
36 /*
37  * Guest register state that is saved outside the VMCB.
38  */
39 struct svm_regctx {
40 	register_t	sctx_rbp;
41 	register_t	sctx_rbx;
42 	register_t	sctx_rcx;
43 	register_t	sctx_rdx;
44 	register_t	sctx_rdi;
45 	register_t	sctx_rsi;
46 	register_t	sctx_r8;
47 	register_t	sctx_r9;
48 	register_t	sctx_r10;
49 	register_t	sctx_r11;
50 	register_t	sctx_r12;
51 	register_t	sctx_r13;
52 	register_t	sctx_r14;
53 	register_t	sctx_r15;
54 	register_t	sctx_dr0;
55 	register_t	sctx_dr1;
56 	register_t	sctx_dr2;
57 	register_t	sctx_dr3;
58 
59 	register_t	host_dr0;
60 	register_t	host_dr1;
61 	register_t	host_dr2;
62 	register_t	host_dr3;
63 	register_t	host_dr6;
64 	register_t	host_dr7;
65 	uint64_t	host_debugctl;
66 };
67 
68 void svm_launch(uint64_t pa, struct svm_regctx *gctx, struct pcpu *pcpu);
69 #ifdef BHYVE_SNAPSHOT
70 void svm_set_tsc_offset(struct svm_vcpu *vcpu, uint64_t offset);
71 #endif
72 
73 #endif /* _SVM_H_ */
74