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 __FBSDID("$FreeBSD$"); 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 bool 40 vmm_is_hw_supported(void) 41 { 42 return (vmm_is_intel() || vmm_is_svm()); 43 } 44 45 bool 46 vmm_is_intel(void) 47 { 48 49 return (strcmp(cpu_vendor, "GenuineIntel") == 0); 50 } 51 52 bool 53 vmm_is_svm(void) 54 { 55 return (strcmp(cpu_vendor, "AuthenticAMD") == 0 || 56 strcmp(cpu_vendor, "HygonGenuine") == 0); 57 } 58 59 bool 60 vmm_supports_1G_pages(void) 61 { 62 unsigned int regs[4]; 63 64 /* 65 * CPUID.80000001:EDX[bit 26] = 1 indicates support for 1GB pages 66 * 67 * Both Intel and AMD support this bit. 68 */ 69 if (cpu_exthigh >= 0x80000001) { 70 do_cpuid(0x80000001, regs); 71 if (regs[3] & (1 << 26)) 72 return (true); 73 } 74 return (false); 75 } 76 77 #include <sys/proc.h> 78 #include <machine/frame.h> 79 #define DUMP_REG(x) printf(#x "\t\t0x%016lx\n", (long)(tf->tf_ ## x)) 80 #define DUMP_SEG(x) printf(#x "\t\t0x%04x\n", (unsigned)(tf->tf_ ## x)) 81 void 82 dump_trapframe(struct trapframe *tf) 83 { 84 DUMP_REG(rdi); 85 DUMP_REG(rsi); 86 DUMP_REG(rdx); 87 DUMP_REG(rcx); 88 DUMP_REG(r8); 89 DUMP_REG(r9); 90 DUMP_REG(rax); 91 DUMP_REG(rbx); 92 DUMP_REG(rbp); 93 DUMP_REG(r10); 94 DUMP_REG(r11); 95 DUMP_REG(r12); 96 DUMP_REG(r13); 97 DUMP_REG(r14); 98 DUMP_REG(r15); 99 DUMP_REG(trapno); 100 DUMP_REG(addr); 101 DUMP_REG(flags); 102 DUMP_REG(err); 103 DUMP_REG(rip); 104 DUMP_REG(rflags); 105 DUMP_REG(rsp); 106 DUMP_SEG(cs); 107 DUMP_SEG(ss); 108 DUMP_SEG(fs); 109 DUMP_SEG(gs); 110 DUMP_SEG(es); 111 DUMP_SEG(ds); 112 } 113