From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D9F74C54EBC for ; Thu, 12 Jan 2023 11:41:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230238AbjALLlL (ORCPT ); Thu, 12 Jan 2023 06:41:11 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52838 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230194AbjALLkY (ORCPT ); Thu, 12 Jan 2023 06:40:24 -0500 Received: from mail.skyhub.de (mail.skyhub.de [IPv6:2a01:4f8:190:11c2::b:1457]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CE84058324 for ; Thu, 12 Jan 2023 03:30:43 -0800 (PST) Received: from zn.tnic (p5de8e9fe.dip0.t-ipconnect.de [93.232.233.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 724821EC05F1; Thu, 12 Jan 2023 12:30:42 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1673523042; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=VEu3Q1moApa2dK72HY6h2xEc+p/QX+YGFb++a93yE1w=; b=FnSZsgXWMn/EDEz12m29pdcXc/xvbhi+HhkpC1CAYHcGm+qWedGBYyEZYHAjeB7JYDgZb0 RikyRQgrVm0eMV3IW8razXbBnO/TX/cjZjxyKnoxWkBBno4txfZvmth3e2u4X722pFwgJc 8FKUJvUCwGcqFaHTlxZE9sV2ciIIwgc= Date: Thu, 12 Jan 2023 12:30:42 +0100 From: Borislav Petkov To: "H. Peter Anvin" Cc: "Maciej W. Rozycki" , "Jason A. Donenfeld" , Thomas Gleixner , Ingo Molnar , Dave Hansen , x86@kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] x86: Disable kernel stack offset randomization for !TSC Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jan 11, 2023 at 05:53:37PM -0800, H. Peter Anvin wrote: > Not to mention that we could use rdrand here if it is available (although it > is slower than rdtsc.) Yeah, no RDRAND on 486. :) -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette