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Date: Thu, 15 Aug 2024 14:04:31 +0000
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
To: Xi Ruoyao <xry111@xry111.site>
Cc: Huacai Chen <chenhuacai@kernel.org>, WANG Xuerui <kernel@xen0n.name>,
	linux-crypto@vger.kernel.org, loongarch@lists.linux.dev,
	Jinyang He <hejinyang@loongson.cn>,
	Tiezhu Yang <yangtiezhu@loongson.cn>, Arnd Bergmann <arnd@arndb.de>
Subject: Re: [PATCH v2 0/2] LoongArch: Implement getrandom() in vDSO
Message-ID: <Zr4K77uPi3CMfE-S@zx2c4.com>
References: <20240815133357.35829-1-xry111@xry111.site>
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In-Reply-To: <20240815133357.35829-1-xry111@xry111.site>

Hi Xi,

Thanks for posting this! That's very nice to see.

I'm currently traveling without my laptop (actually in Yunnan, China!),
so I'll be able to take a look at this for real starting the 26th, as
right now I'm just on my cellphone using lore+mutt.

One thing I wanted to ask, though, is - doesn't LoongArch have 32 8-byte
registers? Shouldn't that be enough to implement ChaCha without spilling
and without using LSX?

Jason