Questions: How can I get the machine serial number and CPU ID in a Linux system? Real time measurement of each core's internal frequency, memory frequency. A CPU tool for benchmarking the peak of floating points - pigirons/cpufp 12/98-012 Modified Figure 1 to add the reserved information for the Intel386 processors. The input to cpuid (the variable "op") is passed to "asm" in the eax register, as cpuid expects it to. Added the Processor serial number information returned when the CPUID instruction is executed with EAX=3. cpuid is a processor specific instruction used to get processor's information and features. CPU-Z is a freeware that gathers information on some of the main devices of your system : Processor name and number, codename, process, package, cache levels. CPUID.0H:EAX) were requested. In this post we are going to learn how to extract those information using inline assembly in c. Answers: Here is what the Linux kernel seems to use: static inline void native_cpuid(unsigned int *eax, unsigned int *ebx, unsigned int *ecx, unsigned int *edx) { … Sample code is highly appreciated. It seems to lack any form of __cpuid and cpuid.h ain't existing also - at least on my distro (OpenSuSE12.3) It's not vital for … Sample code to extract cpu information using CPUID instruction - cpuinfo.cpp is anyone aware about a method to get CPUID and brand string, as well as maybe even features, similar to MMX/SSE etc. detection for NEON in Linux ARM? For those of you are still interested but don't have access to Linux/x86 system here is the assembly code I wrote (everything after a ; is a comment): Modified Figure 2. (e-> flags & KVM_CPUID_FLAG_SIGNIFCANT_INDEX))) return e;} return NULL;} EXPORT_SYMBOL_GPL (kvm_find_cpuid_entry); /* * Intel CPUID semantics treats any query for an out-of-range leaf as if the * highest basic leaf (i.e. Getting processor information using cpuid instruction and inline assembly. nasm -f elf cpuid.asm ld -s -o cpuid cpuid.o 64bit x86 machines nasm -f elf cpuid.asm ld -s -m elf_i386 -o cpuid cpuid.o Info for non-Linux/x86 users. Modified cpuid3b.asm and cpuid3.c example code to check for, and identify, the Celeron processor, model 6. The a, b, c, and d constraints are used in the output to … I'm fairly certain, ICL doesn't support GNU style inline assembly in Windows mode. Mainboard and chipset. CPUID - Intel SGX Capabilities Detection (Extended) - cpuid_sgx.c Elixir Cross Referencer - Explore source code in your browser - Particularly useful for the Linux kernel and other low-level projects in C/C++ (bootloaders, C libraries...) Live … Memory type, size, timings, and module specifications (SPD). Intel tries very hard to be compatible with GCC on Linux and VC on Windows. Modified Table 1.