UART emulator

[real-tintin]

Hi!

I'm wondering if someone can confirm if (or if not) the UART emulator (https://docs.zephyrproject.org/latest/build/dts/api/bindings/serial/zephyr,uart-emul.html) is working? I have tried running zephyr_os/zephyr/tests/drivers/uart/uart_emul, but it returns with:

{
    "environment":{
        "os":"posix",
        "zephyr_version":"498dea824e94",
        "toolchain":"zephyr",
        "commit_date":"2023-04-21T13:25:23+02:00",
        "run_date":"2023-05-18T10:49:43+00:00"
    },
    "testsuites":[
        {
            "name":"drivers.uart_emul.polling",
            "arch":"x86",
            "platform":"qemu_x86",
            "run_id":"ea52c7211062374a969bc731a2604095",
            "runnable":false,
            "retries":0,
            "status":"filtered",
            "reason":"No hardware support",
            "execution_time":"0.00",
            "testcases":[
                {
                    "identifier":"drivers.uart_emul.polling.polling_out",
                    "execution_time":"0.00",
                    "status":"filtered",
                    "reason":"No hardware support"
                },
                {
                    "identifier":"drivers.uart_emul.polling.polling_in",
                    "execution_time":"0.00",
                    "status":"filtered",
                    "reason":"No hardware support"
                }
            ]
        }
    ]
}

Note, I'm running this in Docker with virtualisation (amd64) as I'm on an Apple M2.