Function runs_inside_qemu::runs_inside_qemu [−][src]
pub fn runs_inside_qemu() -> bool
Expand description
Returns if the code is running inside a QEMU virtual machine. Only works on x86/x86_64 platform.
Doesn’t panic and in case something strange happens, it returns
false
in favor of a Result
, because these errors are absolutely
unlikely.
Example Usage
fn main() { // If we are in QEMU, we use the nice "debugcon"-feature which maps // the x86 I/O-port `0xe9` to stdout or a file. if runs_inside_qemu() { unsafe { x86::io::outb(0xe9, b'H'); x86::io::outb(0xe9, b'e'); x86::io::outb(0xe9, b'l'); x86::io::outb(0xe9, b'l'); x86::io::outb(0xe9, b'o'); x86::io::outb(0xe9, b'\n'); } } }