From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id A6C56A04C3; Wed, 13 Nov 2019 18:49:52 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 3B2A7A69; Wed, 13 Nov 2019 18:49:52 +0100 (CET) Received: from mail-pg1-f195.google.com (mail-pg1-f195.google.com [209.85.215.195]) by dpdk.org (Postfix) with ESMTP id A24579E4 for ; Wed, 13 Nov 2019 18:49:50 +0100 (CET) Received: by mail-pg1-f195.google.com with SMTP id k1so504315pgg.12 for ; Wed, 13 Nov 2019 09:49:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:mime-version :content-transfer-encoding; bh=WBV0FPwY4n9Pquv8zLdf2kW4n3cg+ZrcR8pQZZ4tzIQ=; b=R2hpPpWVBC35E/o8uTN3CFoLaPLep2ecrtQ+GWFBIo1+b2MJvMHhaHIUQ6OEV84gwp dZ6yo/GK6tkN3fuc93rbfH1xbEKzwKN2Ekg4PTp8nyOC9aBdg8W+EPEEYkMF9oXFm1eN 22Xl7Yv+4gODAmELZoXfOJyfxCjcSglrrOuNRsI2UCKRHss7lpFjvo8lR6LbwSRQETZi Lj3Gt5hOWdPEBLl2IFaoFABp1RCnPfmmN3ZGyE53djLk3CIQ2jiOVQSIDwMQCnJpcgGS zp4iwB3+t6uqrQ4UUK1PiU33c+iLifkTG0D8WvuRU1z95baE3Zk5BPpAPiH4BnkRoYQu W/Qg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:mime-version :content-transfer-encoding; bh=WBV0FPwY4n9Pquv8zLdf2kW4n3cg+ZrcR8pQZZ4tzIQ=; b=bhLE1O8C8Z60ZLWIJ4581pTAWZQ979rpKqnR/zxZy7V2+3AZwLOeJZ5btUgIdKFJ4e m0DDflbe9vUS4VbwSeO2bTuah2A/iOzWUSofh30s5iczWuyoHpJJcAvIcEgbR9QpTrWL OuSauUEpiNn51++LereYkVzmS9GXofoWu6VPzWubiNZgvdoaoRdHkxMNA/c4dRZYj96T zb6Ya6EbnBwFcgfGv1mRjxFSOYU/2fMbllPXfIaZMOu/PpqRmAC5M1Yjip0HAHwoEe9Y EzNFC9vqriVIyiUcE+f1ifChv/rIIy9CJ9mqpSIKmQzEn88ObGzywuQ8qAPs/jsGhfo7 t2WA== X-Gm-Message-State: APjAAAWspWcJ5OmXLtgh6onPG3Fepf9LImrfVlm1Hki7ZcEPz+yk9cgu ZPVcPSmJrscZxVuegSic2SK9rWdkwR6XrQ== X-Google-Smtp-Source: APXvYqw20HUTnSk2W1vEGBgj3nX/KzRMdYl6R+2NXaDqNj3orT9889Aaq7mIKHObWlsJbmbJZlLKGQ== X-Received: by 2002:a17:90a:1446:: with SMTP id j64mr6698743pja.142.1573667388901; Wed, 13 Nov 2019 09:49:48 -0800 (PST) Received: from shemminger-XPS-13-9360 (67-207-105-98.static.wiline.com. [67.207.105.98]) by smtp.gmail.com with ESMTPSA id w7sm3567356pfb.101.2019.11.13.09.49.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Nov 2019 09:49:48 -0800 (PST) Date: Wed, 13 Nov 2019 09:49:44 -0800 From: Stephen Hemminger To: pablo.de.lara.guarch@intel.com Cc: dev@dpdk.org Message-ID: <20191113094944.1989cdd4@shemminger-XPS-13-9360> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Subject: [dpdk-dev] RFC - remove Transactional Memory support? X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" In response to the new TSX Async Abort vulnerability (TAA); perhaps it would be best to remove the limited Transactional Memory support in rte_hash. The feature is not widely used, a potential security soft spot and only supported on Intel (and broken by design there). https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a7a248c593e4