1 /*-
2 * Copyright (c) 2011 NetApp, Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: releng/11.0/sys/amd64/vmm/vmm_util.c 245678 2013-01-20 03:42:49Z neel $
27 */
28
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD: releng/11.0/sys/amd64/vmm/vmm_util.c 245678 2013-01-20 03:42:49Z neel $");
31
32 #include <sys/param.h>
33 #include <sys/libkern.h>
34
35 #include <machine/md_var.h>
36
37 #include "vmm_util.h"
38
39 boolean_t
40 vmm_is_intel(void)
41 {
42
43 if (strcmp(cpu_vendor, "GenuineIntel") == 0)
44 return (TRUE);
45 else
46 return (FALSE);
47 }
48
49 boolean_t
50 vmm_is_amd(void)
51 {
52 if (strcmp(cpu_vendor, "AuthenticAMD") == 0)
53 return (TRUE);
54 else
55 return (FALSE);
56 }
57
58 boolean_t
59 vmm_supports_1G_pages(void)
60 {
61 unsigned int regs[4];
62
63 /*
64 * CPUID.80000001:EDX[bit 26] = 1 indicates support for 1GB pages
65 *
66 * Both Intel and AMD support this bit.
67 */
68 if (cpu_exthigh >= 0x80000001) {
69 do_cpuid(0x80000001, regs);
70 if (regs[3] & (1 << 26))
71 return (TRUE);
72 }
73 return (FALSE);
74 }
75
76 #include <sys/proc.h>
77 #include <machine/frame.h>
78 #define DUMP_REG(x) printf(#x "\t\t0x%016lx\n", (long)(tf->tf_ ## x))
79 #define DUMP_SEG(x) printf(#x "\t\t0x%04x\n", (unsigned)(tf->tf_ ## x))
80 void
81 dump_trapframe(struct trapframe *tf)
82 {
83 DUMP_REG(rdi);
84 DUMP_REG(rsi);
85 DUMP_REG(rdx);
86 DUMP_REG(rcx);
87 DUMP_REG(r8);
88 DUMP_REG(r9);
89 DUMP_REG(rax);
90 DUMP_REG(rbx);
91 DUMP_REG(rbp);
92 DUMP_REG(r10);
93 DUMP_REG(r11);
94 DUMP_REG(r12);
95 DUMP_REG(r13);
96 DUMP_REG(r14);
97 DUMP_REG(r15);
98 DUMP_REG(trapno);
99 DUMP_REG(addr);
100 DUMP_REG(flags);
101 DUMP_REG(err);
102 DUMP_REG(rip);
103 DUMP_REG(rflags);
104 DUMP_REG(rsp);
105 DUMP_SEG(cs);
106 DUMP_SEG(ss);
107 DUMP_SEG(fs);
108 DUMP_SEG(gs);
109 DUMP_SEG(es);
110 DUMP_SEG(ds);
111 }
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