raw-cpuid 11.2.0

A library to parse the x86 CPUID instruction, written in rust with no external dependencies. The implementation closely resembles the Intel CPUID manual description. The library does only depend on libcore.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53

# cpuid [![Crates.io](https://img.shields.io/crates/v/raw_cpuid.svg)](https://crates.io/crates/raw-cpuid) [![Standard checks](https://github.com/gz/rust-cpuid/actions/workflows/standard.yml/badge.svg)](https://github.com/gz/rust-cpuid/actions/workflows/standard.yml)

A library to parse the x86 CPUID instruction, written in rust with no external
dependencies. The implementation closely resembles the Intel CPUID manual
description. The library works in `no_std` environments. Some additional cargo
features require `std` (e.g., pretty printing, serialization).

- For Intel platforms: The code should be in sync with the March 2018 revision of the Intel Architectures SDM.
- For AMD platforms it should be in sync with the [AMD64 systems manual no. 24594](https://www.amd.com/system/files/TechDocs/24594.pdf),  Revision 3.32 (March 2021).

## Library usage

```rust
use raw_cpuid::CpuId;
let cpuid = CpuId::new();

if let Some(vf) = cpuid.get_vendor_info() {
    assert!(vf.as_str() == "GenuineIntel" || vf.as_str() == "AuthenticAMD");
}

let has_sse = cpuid.get_feature_info().map_or(false, |finfo| finfo.has_sse());
if has_sse {
    println!("CPU supports SSE!");
}

if let Some(cparams) = cpuid.get_cache_parameters() {
    for cache in cparams {
        let size = cache.associativity() * cache.physical_line_partitions() * cache.coherency_line_size() * cache.sets();
        println!("L{}-Cache size is {}", cache.level(), size);
    }
} else {
    println!("No cache parameter information available")
}
```

## `cpuid` binary

`raw-cpuid` ships with a `cpuid` binary that can be installed to inspect the
output of the CPUID instruction on a host system.

To install, use:

```bash
cargo install raw-cpuid --features cli
```

The `cli` feature is currently required to build the binary version due to
[cargo limitations](https://github.com/rust-lang/cargo/issues/1982).

## Documentation

* [API Documentation](https://docs.rs/raw-cpuid/)
* [Examples](https://github.com/gz/rust-cpuid/tree/master/examples)