git.ozlabs.org Git - ccan/blob - ccan/cpuid/test/run.c

   1 #include "../cpuid.c"
   2
   3 #include <stdio.h>
   4 #include <stdint.h>
   5
   6 int main(void)
   7 {
   8         if (!cpuid_is_supported()) {
   9                 printf ("CPUID instruction is not supported by this CPU\n");
  10                 return 1;
  11         }
  12
  13         uint32_t info = CPUID_HIGHEST_EXTENDED_FUNCTION_SUPPORTED | CPUID_EXTENDED_L2_CACHE_FEATURES | CPUID_VIRT_PHYS_ADDR_SIZES
  14                         | CPUID_PROCINFO_AND_FEATUREBITS;
  15         uint32_t featureset = CPUID_FEAT_ECX_ALL | CPUID_FEAT_EDX_ALL;
  16         if (!cpuid_write_info(info, featureset, NULL)) {
  17                 printf("Failed to write CPU information!\n");
  18                 return 1;
  19         }
  20
  21         printf("Wrote CPU information\n");
  22         return 0;
  23 }