| /* ----------------------------------------------------------------------- * |
| * |
| * Copyright 2010 Intel Corporation; author: H. Peter Anvin |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, |
| * Boston MA 02110-1301, USA; either version 2 of the License, or |
| * (at your option) any later version; incorporated herein by reference. |
| * |
| * ----------------------------------------------------------------------- */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <sys/cpu.h> |
| #include <console.h> |
| #include <com32.h> |
| |
| static void dump_reg(const char *name, uint32_t val) |
| { |
| int i; |
| |
| printf("%-3s : %10u 0x%08x ", name, val, val); |
| |
| for (i = 3; i >= 0; i--) { |
| uint8_t c = val >> (i*8); |
| putchar((c >= ' ' && c <= '~') ? c : '.'); |
| } |
| putchar('\n'); |
| } |
| |
| int main(int argc, char *argv[]) |
| { |
| uint32_t leaf, counter; |
| uint32_t eax, ebx, ecx, edx; |
| |
| if (argc < 2 || argc > 4) { |
| printf("Usage: %s leaf [counter]\n", argv[0]); |
| exit(1); |
| } |
| |
| leaf = strtoul(argv[1], NULL, 0); |
| counter = (argc > 2) ? strtoul(argv[2], NULL, 0) : 0; |
| |
| if (!cpu_has_eflag(EFLAGS_ID)) { |
| printf("The CPUID instruction is not supported\n"); |
| exit(1); |
| } |
| |
| cpuid_count(leaf, counter, &eax, &ebx, &ecx, &edx); |
| |
| dump_reg("eax", eax); |
| dump_reg("ebx", ebx); |
| dump_reg("ecx", ecx); |
| dump_reg("edx", edx); |
| |
| return 0; |
| } |