7 #include "../../util/header.h"
10 cpuid(unsigned int op, unsigned int *a, unsigned int *b, unsigned int *c,
13 __asm__ __volatile__ (".byte 0x53\n\tcpuid\n\t"
14 "movl %%ebx, %%esi\n\t.byte 0x5b"
23 get_cpuid(char *buffer, size_t sz)
25 unsigned int a, b, c, d, lvl;
26 int family = -1, model = -1, step = -1;
30 cpuid(0, &lvl, &b, &c, &d);
31 strncpy(&vendor[0], (char *)(&b), 4);
32 strncpy(&vendor[4], (char *)(&d), 4);
33 strncpy(&vendor[8], (char *)(&c), 4);
37 cpuid(1, &a, &b, &c, &d);
39 family = (a >> 8) & 0xf; /* bits 11 - 8 */
40 model = (a >> 4) & 0xf; /* Bits 7 - 4 */
45 family += (a >> 20) & 0xff;
49 model += ((a >> 16) & 0xf) << 4;
51 nb = scnprintf(buffer, sz, "%s,%u,%u,%u$", vendor, family, model, step);
53 /* look for end marker to ensure the entire data fit */
54 if (strchr(buffer, '$')) {