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_intel(void)
43{
44
45	return (strcmp(cpu_vendor, "GenuineIntel") == 0);
46}
47
48bool
49vmm_is_svm(void)
50{
51	return (strcmp(cpu_vendor, "AuthenticAMD") == 0 ||
52	    strcmp(cpu_vendor, "HygonGenuine") == 0);
53}
54
55bool
56vmm_supports_1G_pages(void)
57{
58	unsigned int regs[4];
59
60	/*
61	 * CPUID.80000001:EDX[bit 26] = 1 indicates support for 1GB pages
62	 *
63	 * Both Intel and AMD support this bit.
64	 */
65	if (cpu_exthigh >= 0x80000001) {
66		do_cpuid(0x80000001, regs);
67		if (regs[3] & (1 << 26))
68			return (true);
69	}
70	return (false);
71}
72
73#include <sys/proc.h>
74#include <machine/frame.h>
75#define	DUMP_REG(x)	printf(#x "\t\t0x%016lx\n", (long)(tf->tf_ ## x))
76#define	DUMP_SEG(x)	printf(#x "\t\t0x%04x\n", (unsigned)(tf->tf_ ## x))
77void
78dump_trapframe(struct trapframe *tf)
79{
80	DUMP_REG(rdi);
81	DUMP_REG(rsi);
82	DUMP_REG(rdx);
83	DUMP_REG(rcx);
84	DUMP_REG(r8);
85	DUMP_REG(r9);
86	DUMP_REG(rax);
87	DUMP_REG(rbx);
88	DUMP_REG(rbp);
89	DUMP_REG(r10);
90	DUMP_REG(r11);
91	DUMP_REG(r12);
92	DUMP_REG(r13);
93	DUMP_REG(r14);
94	DUMP_REG(r15);
95	DUMP_REG(trapno);
96	DUMP_REG(addr);
97	DUMP_REG(flags);
98	DUMP_REG(err);
99	DUMP_REG(rip);
100	DUMP_REG(rflags);
101	DUMP_REG(rsp);
102	DUMP_SEG(cs);
103	DUMP_SEG(ss);
104	DUMP_SEG(fs);
105	DUMP_SEG(gs);
106	DUMP_SEG(es);
107	DUMP_SEG(ds);
108}
109