[PATCH] sandbox: dtsi: add rng

[Heinrich Schuchardt]

On 10.03.21 15:33, Vincent Stehlé wrote:
> Having an rng in the sandbox is useful not only for tests but also for e.g.
> UEFI. Therefore, copy the rng node from test.dts to sandbox.dtsi.
>
> In the case of UEFI, it can then be verified with `efidebug dh' that a
> "Random Number Generator" protocol is indeed present.
>
> This also fixes the following `bootefi' error:

The message is written with log_warning(). It is not an error.

An error is written in the lib/efi_selftest/efi_selftest_rng.c when
executing the unit test.

Please, remember that this is not a good PRNG. If you want proper random
values, you would have to change the driver to use the host's
getentropy() function.

>
>   Missing RNG device for EFI_RNG_PROTOCOL
>
> Signed-off-by: Vincent Stehlé <vincent.stehle at arm.com>
> Cc: Simon Glass <sjg at chromium.org>
> ---
>  arch/sandbox/dts/sandbox.dtsi | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/arch/sandbox/dts/sandbox.dtsi b/arch/sandbox/dts/sandbox.dtsi
> index dc933f3bfc7..43b9342ce56 100644
> --- a/arch/sandbox/dts/sandbox.dtsi
> +++ b/arch/sandbox/dts/sandbox.dtsi
> @@ -196,6 +196,10 @@
>  		compatible = "sandbox,reset";
>  	};
>
> +	rng {
> +		compatible = "sandbox,sandbox-rng";
> +	};
> +

Reviewed-by: Heinrich Schuchardt <xypron.glpk at gmx.de>

>  	sound {
>  		compatible = "sandbox,sound";
>  		cpu {
>