- char buf[128];
- cpuid(CPU_VENDORID, buf);
- printf ("Vendor ID: %s\n", buf);
-
- cpuid(CPU_PROC_BRAND_STRING, buf);
- printf ("Processor Brand: %s\n", buf);
-
- int addr;
- cpuid(CPU_HIGHEST_EXTENDED_FUNCTION_SUPPORTED, &addr);
- printf ("Highest extended function supported: %#010x\n", addr);
-
- union {
- struct {
- uint32_t phys_bits : 8;
- uint32_t virt_bits : 8;
- uint32_t reserved : 16;
- };
- uint32_t w;
- } s;
- cpuid(CPU_VIRT_PHYS_ADDR_SIZES, &s.w);
- printf ("Physical address size: %d\nVirtual: %d\n", s.phys_bits, s.virt_bits);
-
- int extfeatures[2];
- cpuid(CPU_EXTENDED_PROC_INFO_FEATURE_BITS, extfeatures);
- printf ("Extended processor info and feature bits: %d %d\n", extfeatures[0], extfeatures[1]);
-
- union {
- struct {
- uint32_t line_size : 8;
- uint32_t reserved : 4;
- uint32_t assoc : 4;
- uint32_t cache_size : 16;
- };
-
- uint32_t w;
- } l2c;
-
- cpuid(CPU_EXTENDED_L2_CACHE_FEATURES, &l2c.w);
- printf ("L2 Cache Size: %u KB\tLine Size: %u bytes\tAssociativity: %02xh\n",
- l2c.cache_size, l2c.line_size, l2c.assoc);
+ uint32_t info = CPUID_HIGHEST_EXTENDED_FUNCTION_SUPPORTED | CPUID_EXTENDED_L2_CACHE_FEATURES | CPUID_VIRT_PHYS_ADDR_SIZES
+ | CPUID_PROCINFO_AND_FEATUREBITS;
+ uint32_t featureset = CPUID_FEAT_ECX_ALL | CPUID_FEAT_EDX_ALL;
+ if (!cpuid_write_info(info, featureset, stdout)) {
+ printf("Failed to write CPU information!\n");
+ return 1;
+ }