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 X-Spam-Level: X-Spam-Status: No, score=-8.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CCD9CC432C3 for ; Thu, 14 Nov 2019 09:54:20 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 818942063A for ; Thu, 14 Nov 2019 09:54:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 818942063A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 47DGzG2JsPzF7RJ for ; Thu, 14 Nov 2019 20:54:18 +1100 (AEDT) Received: from ozlabs.org (bilbo.ozlabs.org [IPv6:2401:3900:2:1::2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 47DFxs4gnyzF5JP for ; Thu, 14 Nov 2019 20:08:01 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Received: by ozlabs.org (Postfix, from userid 1034) id 47DFxs1J6nz9sSL; Thu, 14 Nov 2019 20:08:00 +1100 (AEDT) X-powerpc-patch-notification: thanks X-powerpc-patch-commit: 8e6b6da91ac9b9ec5a925b6cb13f287a54bd547d In-Reply-To: <20191029190759.84821-1-asteinhauser@google.com> To: asteinhauser@google.com, benh@kernel.crashing.org, paulus@samba.org, diana.craciun@nxp.com From: Michael Ellerman Subject: Re: [PATCH] L1TF support in PowerPC SYSFS. Message-Id: <47DFxs1J6nz9sSL@ozlabs.org> Date: Thu, 14 Nov 2019 20:08:00 +1100 (AEDT) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linuxppc-dev@lists.ozlabs.org, Anthony Steinhauser Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Tue, 2019-10-29 at 19:07:59 UTC, asteinhauser@google.com wrote: > From: Anthony Steinhauser > > PowerPC CPUs are vulnerable to L1TF to the same extent as to Meltdown. > It is also mitigated by flushing the L1D on privilege transition. > Currently the SYSFS gives a false negative on L1TF on CPUs that I verified > to be vulnerable. > https://www.ibm.com/blogs/psirt/potential-impact-processors-power-family/ > https://github.com/google/safeside/pull/52 > Signed-off-by: Anthony Steinhauser Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/8e6b6da91ac9b9ec5a925b6cb13f287a54bd547d cheers