1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
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
29 #include <sys/param.h>
30 #include <sys/libkern.h>
31
32 #include <machine/md_var.h>
33
34 #include "vmm_util.h"
35
36 bool
vmm_is_hw_supported(void)37 vmm_is_hw_supported(void)
38 {
39 return (vmm_is_intel() || vmm_is_svm());
40 }
41
42 bool
vmm_is_intel(void)43 vmm_is_intel(void)
44 {
45
46 return (strcmp(cpu_vendor, "GenuineIntel") == 0);
47 }
48
49 bool
vmm_is_svm(void)50 vmm_is_svm(void)
51 {
52 return (strcmp(cpu_vendor, "AuthenticAMD") == 0 ||
53 strcmp(cpu_vendor, "HygonGenuine") == 0);
54 }
55
56 bool
vmm_supports_1G_pages(void)57 vmm_supports_1G_pages(void)
58 {
59 unsigned int regs[4];
60
61 /*
62 * CPUID.80000001:EDX[bit 26] = 1 indicates support for 1GB pages
63 *
64 * Both Intel and AMD support this bit.
65 */
66 if (cpu_exthigh >= 0x80000001) {
67 do_cpuid(0x80000001, regs);
68 if (regs[3] & (1 << 26))
69 return (true);
70 }
71 return (false);
72 }
73
74 #include <sys/proc.h>
75 #include <machine/frame.h>
76 #define DUMP_REG(x) printf(#x "\t\t0x%016lx\n", (long)(tf->tf_ ## x))
77 #define DUMP_SEG(x) printf(#x "\t\t0x%04x\n", (unsigned)(tf->tf_ ## x))
78 void
dump_trapframe(struct trapframe * tf)79 dump_trapframe(struct trapframe *tf)
80 {
81 DUMP_REG(rdi);
82 DUMP_REG(rsi);
83 DUMP_REG(rdx);
84 DUMP_REG(rcx);
85 DUMP_REG(r8);
86 DUMP_REG(r9);
87 DUMP_REG(rax);
88 DUMP_REG(rbx);
89 DUMP_REG(rbp);
90 DUMP_REG(r10);
91 DUMP_REG(r11);
92 DUMP_REG(r12);
93 DUMP_REG(r13);
94 DUMP_REG(r14);
95 DUMP_REG(r15);
96 DUMP_REG(trapno);
97 DUMP_REG(addr);
98 DUMP_REG(flags);
99 DUMP_REG(err);
100 DUMP_REG(rip);
101 DUMP_REG(rflags);
102 DUMP_REG(rsp);
103 DUMP_SEG(cs);
104 DUMP_SEG(ss);
105 DUMP_SEG(fs);
106 DUMP_SEG(gs);
107 DUMP_SEG(es);
108 DUMP_SEG(ds);
109 }
110