From: Gleb Natapov <gleb@kernel.org>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>,
Daniel Borkmann <dborkman@redhat.com>,
kvm list <kvm@vger.kernel.org>, "H. Peter Anvin" <hpa@zytor.com>,
Theodore Ts'o <tytso@mit.edu>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Kees Cook <keescook@chromium.org>, X86 ML <x86@kernel.org>,
Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>,
Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Subject: Re: [PATCH 0/4] random,x86,kvm: Add and use MSR_KVM_GET_RNG_SEED
Date: Wed, 16 Jul 2014 17:53:22 +0300 [thread overview]
Message-ID: <20140716145322.GX18167@minantech.com> (raw)
In-Reply-To: <53C68CF3.5070208@redhat.com>
On Wed, Jul 16, 2014 at 04:32:19PM +0200, Paolo Bonzini wrote:
> Il 16/07/2014 16:07, Andy Lutomirski ha scritto:
> >This patch has nothing whatsoever to do with how much I trust the CPU
> >vs the hypervisor. It's for the enormous installed base of machines
> >without RDRAND.
>
> Ok. I think an MSR is fine, though I don't think it's useful for the guest
> to use it if it already has RDRAND and/or RDSEED.
>
Agree. It is unfortunate that we add PV interfaces for a HW that will be extinct
in a couple of years though :(
--
Gleb.
next prev parent reply other threads:[~2014-07-16 14:53 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-16 2:48 [PATCH 0/4] random,x86,kvm: Add and use MSR_KVM_GET_RNG_SEED Andy Lutomirski
2014-07-16 2:48 ` [PATCH 1/4] x86,kvm: Add MSR_KVM_GET_RNG_SEED and a matching feature bit Andy Lutomirski
2014-07-16 2:48 ` [PATCH 2/4] random,x86: Add arch_get_slow_rng_u64 Andy Lutomirski
2014-07-16 2:48 ` [PATCH 3/4] random: Seed pools from arch_get_slow_rng_u64 at startup Andy Lutomirski
2014-07-16 2:48 ` [PATCH 4/4] x86,kaslr: Use MSR_KVM_GET_RNG_SEED for KASLR if available Andy Lutomirski
2014-07-16 6:41 ` [PATCH 0/4] random,x86,kvm: Add and use MSR_KVM_GET_RNG_SEED Gleb Natapov
2014-07-16 7:10 ` Daniel Borkmann
2014-07-16 7:23 ` Gleb Natapov
2014-07-16 7:36 ` Paolo Bonzini
2014-07-16 14:07 ` Andy Lutomirski
2014-07-16 14:32 ` Paolo Bonzini
2014-07-16 14:53 ` Gleb Natapov [this message]
2014-07-16 15:56 ` Andy Lutomirski
2014-07-16 16:03 ` H. Peter Anvin
2014-07-16 16:08 ` Paolo Bonzini
2014-07-16 16:13 ` H. Peter Anvin
2014-07-16 16:21 ` Gleb Natapov
2014-07-16 20:20 ` H. Peter Anvin
2014-07-16 21:32 ` Andy Lutomirski
2014-07-16 21:36 ` H. Peter Anvin
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