Date: Thu, 15 Dec 2016 22:04:25 +0100 From: Peter Zijlstra <peterz@...radead.org> To: "Jason A. Donenfeld" <Jason@...c4.com> Cc: Hannes Frederic Sowa <hannes@...essinduktion.org>, David Laight <David.Laight@...lab.com>, Netdev <netdev@...r.kernel.org>, "kernel-hardening@...ts.openwall.com" <kernel-hardening@...ts.openwall.com>, Jean-Philippe Aumasson <jeanphilippe.aumasson@...il.com>, LKML <linux-kernel@...r.kernel.org>, Linux Crypto Mailing List <linux-crypto@...r.kernel.org>, "Daniel J . Bernstein" <djb@...yp.to>, Linus Torvalds <torvalds@...ux-foundation.org>, Eric Biggers <ebiggers3@...il.com> Subject: Re: [PATCH v2 1/4] siphash: add cryptographically secure hashtable function On Thu, Dec 15, 2016 at 09:43:04PM +0100, Jason A. Donenfeld wrote: > On Thu, Dec 15, 2016 at 9:31 PM, Hannes Frederic Sowa > <hannes@...essinduktion.org> wrote: > > ARM64 and x86-64 have memory operations that are not vector operations > > that operate on 128 bit memory. > > Fair enough. imull I guess. imull is into rdx:rax, not memory. I suspect he's talking about cmpxchg16b.
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