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/cdefs.h>
30 #include <sys/param.h>
31 #include <sys/libkern.h>
32
33 #include <machine/md_var.h>
34
35 #include "vmm_util.h"
36
37 bool
vmm_is_hw_supported(void)38 vmm_is_hw_supported(void)
39 {
40 return (vmm_is_intel() || vmm_is_svm());
41 }
42
43 bool
vmm_is_intel(void)44 vmm_is_intel(void)
45 {
46
47 return (strcmp(cpu_vendor, "GenuineIntel") == 0);
48 }
49
50 bool
vmm_is_svm(void)51 vmm_is_svm(void)
52 {
53 return (strcmp(cpu_vendor, "AuthenticAMD") == 0 ||
54 strcmp(cpu_vendor, "HygonGenuine") == 0);
55 }
56
57 bool
vmm_supports_1G_pages(void)58 vmm_supports_1G_pages(void)
59 {
60 unsigned int regs[4];
61
62 /*
63 * CPUID.80000001:EDX[bit 26] = 1 indicates support for 1GB pages
64 *
65 * Both Intel and AMD support this bit.
66 */
67 if (cpu_exthigh >= 0x80000001) {
68 do_cpuid(0x80000001, regs);
69 if (regs[3] & (1 << 26))
70 return (true);
71 }
72 return (false);
73 }
74
75 #include <sys/proc.h>
76 #include <machine/frame.h>
77 #define DUMP_REG(x) printf(#x "\t\t0x%016lx\n", (long)(tf->tf_ ## x))
78 #define DUMP_SEG(x) printf(#x "\t\t0x%04x\n", (unsigned)(tf->tf_ ## x))
79 void
dump_trapframe(struct trapframe * tf)80 dump_trapframe(struct trapframe *tf)
81 {
82 DUMP_REG(rdi);
83 DUMP_REG(rsi);
84 DUMP_REG(rdx);
85 DUMP_REG(rcx);
86 DUMP_REG(r8);
87 DUMP_REG(r9);
88 DUMP_REG(rax);
89 DUMP_REG(rbx);
90 DUMP_REG(rbp);
91 DUMP_REG(r10);
92 DUMP_REG(r11);
93 DUMP_REG(r12);
94 DUMP_REG(r13);
95 DUMP_REG(r14);
96 DUMP_REG(r15);
97 DUMP_REG(trapno);
98 DUMP_REG(addr);
99 DUMP_REG(flags);
100 DUMP_REG(err);
101 DUMP_REG(rip);
102 DUMP_REG(rflags);
103 DUMP_REG(rsp);
104 DUMP_SEG(cs);
105 DUMP_SEG(ss);
106 DUMP_SEG(fs);
107 DUMP_SEG(gs);
108 DUMP_SEG(es);
109 DUMP_SEG(ds);
110 }
111