linux-kernel - Re: [PATCH v7 3/6] crypto: loongson - add Loongson RNG driver support

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Message-ID: <Z_NOsSBRWUEToa7_@gondor.apana.org.au>
Date: Mon, 7 Apr 2025 12:04:01 +0800
From: Herbert Xu <herbert@...dor.apana.org.au>
To: Qunqin Zhao <zhaoqunqin@...ngson.cn>
Cc: lee@...nel.org, davem@...emloft.net, peterhuewe@....de,
	jarkko@...nel.org, linux-kernel@...r.kernel.org,
	loongarch@...ts.linux.dev, linux-crypto@...r.kernel.org,
	jgg@...pe.ca, linux-integrity@...r.kernel.org,
	pmenzel@...gen.mpg.de, Yinggang Gu <guyinggang@...ngson.cn>,
	Huacai Chen <chenhuacai@...ngson.cn>
Subject: Re: [PATCH v7 3/6] crypto: loongson - add Loongson RNG driver support

On Thu, Apr 03, 2025 at 10:46:42AM +0800, Qunqin Zhao wrote:
> Loongson's Random Number Generator is found inside Loongson security
> engine.

Is this a hardware RNG or a pseudo RNG? If it's pseudo, it should
provide a means of reseeding.

If it's a hardware RNG it should register with hwrng.

Cheers,
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt