1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2011 NetApp, 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 NETAPP, INC ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD$
29 */
30
31#include <sys/cdefs.h>
32__FBSDID("$FreeBSD$");
33
34#include <sys/param.h>
35#include <sys/libkern.h>
36
37#include <machine/md_var.h>
38
39#include "vmm_util.h"
40
41bool
42vmm_is_hw_supported(void)
43{
44	return (vmm_is_intel() || vmm_is_svm());
45}
46
47bool
48vmm_is_intel(void)
49{
50
51	return (strcmp(cpu_vendor, "GenuineIntel") == 0);
52}
53
54bool
55vmm_is_svm(void)
56{
57	return (strcmp(cpu_vendor, "AuthenticAMD") == 0 ||
58	    strcmp(cpu_vendor, "HygonGenuine") == 0);
59}
60
61bool
62vmm_supports_1G_pages(void)
63{
64	unsigned int regs[4];
65
66	/*
67	 * CPUID.80000001:EDX[bit 26] = 1 indicates support for 1GB pages
68	 *
69	 * Both Intel and AMD support this bit.
70	 */
71	if (cpu_exthigh >= 0x80000001) {
72		do_cpuid(0x80000001, regs);
73		if (regs[3] & (1 << 26))
74			return (true);
75	}
76	return (false);
77}
78
79#include <sys/proc.h>
80#include <machine/frame.h>
81#define	DUMP_REG(x)	printf(#x "\t\t0x%016lx\n", (long)(tf->tf_ ## x))
82#define	DUMP_SEG(x)	printf(#x "\t\t0x%04x\n", (unsigned)(tf->tf_ ## x))
83void
84dump_trapframe(struct trapframe *tf)
85{
86	DUMP_REG(rdi);
87	DUMP_REG(rsi);
88	DUMP_REG(rdx);
89	DUMP_REG(rcx);
90	DUMP_REG(r8);
91	DUMP_REG(r9);
92	DUMP_REG(rax);
93	DUMP_REG(rbx);
94	DUMP_REG(rbp);
95	DUMP_REG(r10);
96	DUMP_REG(r11);
97	DUMP_REG(r12);
98	DUMP_REG(r13);
99	DUMP_REG(r14);
100	DUMP_REG(r15);
101	DUMP_REG(trapno);
102	DUMP_REG(addr);
103	DUMP_REG(flags);
104	DUMP_REG(err);
105	DUMP_REG(rip);
106	DUMP_REG(rflags);
107	DUMP_REG(rsp);
108	DUMP_SEG(cs);
109	DUMP_SEG(ss);
110	DUMP_SEG(fs);
111	DUMP_SEG(gs);
112	DUMP_SEG(es);
113	DUMP_SEG(ds);
114}
115