Received: by 2002:a05:6902:102b:0:0:0:0 with SMTP id x11csp287873ybt; Fri, 19 Jun 2020 01:54:07 -0700 (PDT) X-Google-Smtp-Source: ABdhPJw0JaDT4aDkg+aXWPJcbD3MjwIPYpbHqgNlcLzawKT6xdaZoFMyx5VE3p/MEuiw70WOOdlG X-Received: by 2002:a05:6402:659:: with SMTP id u25mr2295175edx.124.1592556847334; Fri, 19 Jun 2020 01:54:07 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1592556847; cv=none; d=google.com; s=arc-20160816; b=Hn55zIZA+FyR+v/PLf+VmZmNh+iMfLRKOJDDw2LqlSlt+X0W/i/lB1Nch7HtdBTgdQ xi7oFX2RR4V+vXDA3Bf4+Gi49JNor6YX6SYO5XmgCNQkueqwmZoz4IUBEI467UM4tyEL BfndBIpbkFqfhsD84rk1GaLzRFT5tqQeGOf8Ys2c06iDvAzWJLHnQaFbEB6OoOOsHcsG 9hzbaiiKhuePHfQQNZodoWOy4+6TM9+qP+TMGD7TBrE4upxY8oFl6MLEQWfB1RAnJxyv qOLLyPOIzuEjaLotoqqqIMYLxVvv0RPYmE7H4cJLptI59gkLwT7BGZd9AZjBYUth4ZVl ZxZA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date :dkim-signature; bh=h4FwYiyWhYR7saNRzcCJ27rw0psvb//Ts/LIFLxn7iU=; b=KsDy91L3nM9RqkN3WvrA4iynCT54EY4dZGP6n4YGAAQGZAqipa4J+wmNrL6DpJtQwW j7NmHm3DpgS9hOM32UB4MstNkwurj2Dromxm8OGCIs6b5F9wbj1x60nT2CkfNg+07yWx kMXY2huMGdKYu2uB2M+1GBHgAkWhUKU1cVy/2o0oTpfgx+q1Ik1MlxLilSkNsiGDu6No aWNCaDYsX6NsMkuHHd9o8kCKGkEKBSRO9sRNyM+NK7HY8K9IApVfUZhcavf2dmUy4Hea msEQu32ceixdroF58nKbmS6Bu/Vu7YKRTMDg8Wi5R5nC349J+sXIMn3JGHlSbGQuDh/k /lAA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@alien8.de header.s=dkim header.b=eS+B+DYe; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id hh22si3461927ejb.85.2020.06.19.01.53.45; Fri, 19 Jun 2020 01:54:07 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@alien8.de header.s=dkim header.b=eS+B+DYe; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729740AbgFSHlP (ORCPT + 99 others); Fri, 19 Jun 2020 03:41:15 -0400 Received: from mail.skyhub.de ([5.9.137.197]:58866 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729548AbgFSHlI (ORCPT ); Fri, 19 Jun 2020 03:41:08 -0400 Received: from zn.tnic (p200300ec2f0bac00fd80253c6a150deb.dip0.t-ipconnect.de [IPv6:2003:ec:2f0b:ac00:fd80:253c:6a15:deb]) (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 AFD521EC02AC; Fri, 19 Jun 2020 09:41:07 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1592552467; 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=h4FwYiyWhYR7saNRzcCJ27rw0psvb//Ts/LIFLxn7iU=; b=eS+B+DYemdA2HXQwi7Qe4nvX3U3QY63WkSacRFe5wuS37S9Au1EGoiqo+pj4I+vFxC3vUn REv9B/uBMcNymPkRZVUH/LrFQ8f4rybPmOs2QCUGUcwfErGLGIilOkq5QAdlk5FTtBoQNu PzvDqNsp0lTul1GY3aBN7erN9/cgfM4= Date: Fri, 19 Jun 2020 09:41:05 +0200 From: Borislav Petkov To: Dave Hansen Cc: Daniel Gutson , Thomas Gleixner , Ingo Molnar , x86@kernel.org, "H. Peter Anvin" , Arnd Bergmann , Greg Kroah-Hartman , Peter Zijlstra , "David S. Miller" , Rob Herring , Tony Luck , Rahul Tanwar , Xiaoyao Li , Sean Christopherson , Dave Hansen , linux-kernel@vger.kernel.org, Richard Hughes Subject: Re: [PATCH] Ability to read the MKTME status from userspace Message-ID: <20200619074105.GB32683@zn.tnic> References: <20200618210215.23602-1-daniel.gutson@eclypsium.com> <589c89ae-620e-36f8-2be5-4afc727c2911@intel.com> <23babf62-00cb-cb47-bb19-da9508325934@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <23babf62-00cb-cb47-bb19-da9508325934@intel.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jun 18, 2020 at 04:52:18PM -0700, Dave Hansen wrote: > Do we need another driver when running in a SEV guest to tell us about > SEV's status? We use /proc/cpuinfo for that. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette