linux-kernel - Re: [PATCH v5 0/5] random,x86,kvm: Rework arch RNG seeds and get some from kvm

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Message-ID: <20140813182219.GE6437@thunk.org>
Date:	Wed, 13 Aug 2014 14:22:19 -0400
From:	Theodore Ts'o <tytso@....edu>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Andy Lutomirski <luto@...capital.net>,
	kvm list <kvm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Kees Cook <keescook@...omium.org>, X86 ML <x86@...nel.org>,
	Daniel Borkmann <dborkman@...hat.com>,
	Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>,
	Raghavendra K T <raghavendra.kt@...ux.vnet.ibm.com>,
	Gleb Natapov <gleb@...nel.org>,
	Paolo Bonzini <pbonzini@...hat.com>,
	Bandan Das <bsd@...hat.com>, Andrew Honig <ahonig@...gle.com>
Subject: Re: [PATCH v5 0/5] random,x86,kvm: Rework arch RNG seeds and get
 some from kvm

On Wed, Aug 13, 2014 at 10:45:25AM -0700, H. Peter Anvin wrote:
> On 08/13/2014 09:13 AM, Andy Lutomirski wrote:
> > 
> > Sounds good to me.
> > 
> > FWIW, I'd like to see a second use added in random.c: I think that we
> > should do this, or even all of init_std_data, on resume from suspend
> > and especially on resume from hibernate / kexec.
> > 
> 
> Yes, we should.  We also need to make it possible to do this after
> cloning a VM.

Agreed.  Can you send a patch?

I can carry the commits to add arch_random_init() the generic version,
and the patch to call it after suspend/resume.  I'll do this at the
very head of the random tree, and make sure it gets pushed to Linus
early during the next merge window.

Does that sound like a plan?  Or does someone want to suggest
something different?  I'm flexible...

						- Ted
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