linux-kernel - Re: [PATCH v3 2/5] random,x86: Add arch_get_slow_rng

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Message-ID: <53C75733.8060507@zytor.com>
Date:	Wed, 16 Jul 2014 21:55:15 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Andy Lutomirski <luto@...capital.net>
CC:	Raghavendra K T <raghavendra.kt@...ux.vnet.ibm.com>,
	Paolo Bonzini <pbonzini@...hat.com>, X86 ML <x86@...nel.org>,
	Bandan Das <bsd@...hat.com>, Gleb Natapov <gleb@...nel.org>,
	kvm list <kvm@...r.kernel.org>,
	"Theodore Ts'o" <tytso@....edu>,
	Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>,
	Daniel Borkmann <dborkman@...hat.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Kees Cook <keescook@...omium.org>
Subject: Re: [PATCH v3 2/5] random,x86: Add arch_get_slow_rng_u64

On 07/16/2014 05:03 PM, Andy Lutomirski wrote:
>>
>> prandom is exactly the opposite; it is designed for when we need
>> possibly low quality random numbers very quickly.  RDRAND is actually
>> too slow.
> 
> I meant that prandom isn't using rdrand for early seeding.
> 

We should probably fix that.

	-hpa


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