From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.15]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 653ED2629D; Wed, 9 Oct 2024 19:44:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.15 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728503057; cv=none; b=KWmQWqbjso6l/PscpAXkenIdCo9yGCO6EsDeQtKTE5SWpTaCplWTLmB2XZ9YCr9g0yWMlfyWQ8kxKIArhwFhmCTnX8ZYV61v16PnvuKjRM3dnMP95CwPB+M+YqGV4+H5cbiOCqBkjTUUJQgY+tEvuZo0a/NSeEZM/0QXsDTy+7M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728503057; c=relaxed/simple; bh=1pgldR4TDMi05Jhf4Io963ZyBUXdGxSLlxMrZyb+vOo=; h=Message-ID:Date:MIME-Version:Subject:From:To:Cc:References: In-Reply-To:Content-Type; b=VYmpbMAAzhhifoQgzM89eE9m5CJRlEJSXdStJFgkPxj9LOO9SXsPwWn14twEsunDZVbwd1saDdiEnTiNS8RMeH5pS1iqy6RvsukKYBhA7kchDX5PJEjjP+6+bqhktlBRK23K8veQeVxiN7PoaSJqvl3NizJW4Zd/FQhpo+WvfBg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=AaXFH/xb; arc=none smtp.client-ip=198.175.65.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="AaXFH/xb" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1728503057; x=1760039057; h=message-id:date:mime-version:subject:from:to:cc: references:in-reply-to:content-transfer-encoding; bh=1pgldR4TDMi05Jhf4Io963ZyBUXdGxSLlxMrZyb+vOo=; b=AaXFH/xbCc408uWQ1Kj3eAR4yIb6p7tauurpydwg3PkjHMg7GJDMrPYN c0UsRlao0WMlrqRdnTCf33Vg/43bXcKxPVfk2HnyhezffwKeDBmHWFQiU DgcWdMGgnxD8ns35zs6aEw2O7Z98YlpztfdNPhcbHlyrWPakjgSrCkBjD aNrYKJScdmGnnGeW3et62i22PwFOIWUqenUvBpKW8jWSxIuZZ1+DSQS8L v2IgCCusCt/BeUxTZBBQkxH/9+SOrnUgHRXShEGJUOTMSN2LRcXcg93Sq cJTbxTRE3vo49kRsTlYVtMyyCzy9B7S1rrW4RZdhYDxh9IejfaNou9SvQ A==; X-CSE-ConnectionGUID: +rvZ6sYVSDiAWyFW0Cr04A== X-CSE-MsgGUID: hQzVeq5HQ0S2r7mIuw5LtQ== X-IronPort-AV: E=McAfee;i="6700,10204,11220"; a="31531197" X-IronPort-AV: E=Sophos;i="6.11,190,1725346800"; d="scan'208";a="31531197" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Oct 2024 12:44:16 -0700 X-CSE-ConnectionGUID: xuGlGIvVTd2vkMsbKRl62Q== X-CSE-MsgGUID: 8UmA5RcWSDmcw15KWj8avA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,190,1725346800"; d="scan'208";a="107108658" Received: from yaaguila-mobl.amr.corp.intel.com (HELO [10.125.83.153]) ([10.125.83.153]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Oct 2024 12:44:14 -0700 Message-ID: <83686f5b-7957-432c-9e2c-d54e381c06c9@linux.intel.com> Date: Wed, 9 Oct 2024 12:44:13 -0700 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/6] x86/bugs: Create single parameter for VERW based mitigations From: Daniel Sneddon To: "Kaplan, David" , Jonathan Corbet , Thomas Gleixner , Borislav Petkov , Peter Zijlstra , Josh Poimboeuf , Ingo Molnar , Dave Hansen , "x86@kernel.org" Cc: "hpa@zytor.com" , "linux-doc@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "pawan.kumar.gupta@linux.intel.com" References: <20240924223140.1054918-2-daniel.sneddon@linux.intel.com> <879b3437-c706-47c4-b1aa-b2def940f569@linux.intel.com> <7c1de6fb-fa83-47bc-a57b-e6700860513d@linux.intel.com> Content-Language: en-US In-Reply-To: <7c1de6fb-fa83-47bc-a57b-e6700860513d@linux.intel.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 10/9/24 09:39, Daniel Sneddon wrote: > >>> >>> Are you suggesting a name change away from "clear_cpu_buffers" since it is >>> clearly about the mitigation rather than the bug? I'm not sure there is a good >>> common name for those 4 bugs that isn't about the mitigation, but I'm open >>> to any suggestions. >>> >> >> Yes, I think that would be better. I wasn't sure on a name either. In the RFDS webpage I see it described as "similar to data sampling transient execution attacks". Perhaps something like that could be an umbrella term? >> data sampling feels a little too generic. How about something like microarch_data_sampling?