Return-path: Received: from userp2130.oracle.com ([156.151.31.86]) by Galois.linutronix.de with esmtps (TLS1.2:RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1fJ7uF-00075i-9b for speck@linutronix.de; Thu, 17 May 2018 03:40:36 +0200 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.22/8.16.0.22) with SMTP id w4H1aDdq061341 for ; Thu, 17 May 2018 01:40:28 GMT Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by userp2130.oracle.com with ESMTP id 2hx29wf84p-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Thu, 17 May 2018 01:40:28 +0000 Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userv0021.oracle.com (8.14.4/8.14.4) with ESMTP id w4H1eRco013041 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Thu, 17 May 2018 01:40:27 GMT Received: from abhmp0014.oracle.com (abhmp0014.oracle.com [141.146.116.20]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id w4H1eR3K030012 for ; Thu, 17 May 2018 01:40:27 GMT Date: Wed, 16 May 2018 21:40:26 -0400 From: Konrad Rzeszutek Wilk Subject: [MODERATED] Re: [patch 09/15] SSB updates V17 9 Message-ID: <20180517014026.GG10272@char.us.oracle.com> References: <20180516135132.687640705@linutronix.de> <20180516135210.062000846@linutronix.de> MIME-Version: 1.0 In-Reply-To: <20180516135210.062000846@linutronix.de> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit To: speck@linutronix.de List-ID: On Wed, May 16, 2018 at 03:51:41PM +0200, speck for Thomas Gleixner wrote: > Subject: [patch 09/15] x86/speculation: Rework speculative_store_bypass_update() > From: Thomas Gleixner > > The upcoming support for the virtual SPEC_CTRL MSR on AMD needs to reuse > speculative_store_bypass_update() to avoid code duplication. Add an > argument for supplying a thread info (TIF) value and create a wrapper > speculative_store_bypass_update_current() which is used at the existing > call site. > > Signed-off-by: Thomas Gleixner > Reviewed-by: Borislav Petkov Reviewed-by: Konrad Rzeszutek Wilk