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pub fn probe() {
    printkln!("Init: PCI scan started");
    if let Ok(table) = acpi::init() {
        if let Some(regions) = table.pci_config_regions {
            for sg in 0..MAX_SG {
                for bus in 0..MAX_BUS {
                    for device in 0..MAX_DEVICE {
                        for function in 0..MAX_FUNCTION {
                            if let Some(addr) = regions.physical_address(
                                sg as u16,
                                bus as u8,
                                device as u8,
                                function as u8,
                            ) {
                                // Do this check anyway
                                use crate::memory::{allocate_phys_range, free_range};
                                allocate_phys_range(addr.clone(), addr.clone() + 4096);
                                if (read_dword(addr as usize, VENDOR_ID) & 0xFFFF) == 0xFFFF {
                                    free_range(addr.clone(), addr.clone() + 4096);
                                    continue;
                                }
                                // Add the device...
                            } else {
                                continue;
                            }
                        }
                    }
                }
            }
            let devs = PCI_DEVICES.read();
            printkln!("init: PCI scan complete; {} devices found", devs.len());
        } else {
            printkln!("init: error: no PCI regions");
        }
    } else {
        printkln!("init: error: ACPI unsupported");
    }
}