From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pl0-f72.google.com (mail-pl0-f72.google.com [209.85.160.72]) by kanga.kvack.org (Postfix) with ESMTP id 0DF426B0005 for ; Fri, 2 Mar 2018 16:32:25 -0500 (EST) Received: by mail-pl0-f72.google.com with SMTP id az5-v6so3026356plb.14 for ; Fri, 02 Mar 2018 13:32:25 -0800 (PST) Received: from mga03.intel.com (mga03.intel.com. [134.134.136.65]) by mx.google.com with ESMTPS id m24si4518132pgd.763.2018.03.02.13.32.23 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 02 Mar 2018 13:32:24 -0800 (PST) From: Tim Chen Subject: [PATCH 0/2] Backport IBPB on context switch to non-dumpable process Date: Fri, 2 Mar 2018 13:32:08 -0800 Message-Id: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: owner-linux-mm@kvack.org List-ID: To: stable@vger.kernel.org, Greg Kroah-Hartman Cc: Tim Chen , Andy Lutomirski , Nadav Amit , Thomas Gleixner , Andrew Morton , Arjan van de Ven , Borislav Petkov , Dave Hansen , Linus Torvalds , Mel Gorman , Peter Zijlstra , Rik van Riel , Ingo Molnar , David Woodhouse , ak@linux.intel.com, karahmed@amazon.de, pbonzini@redhat.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Greg, I will like to propose backporting "x86/speculation: Use Indirect Branch Prediction Barrier on context switch" from commit 18bf3c3e in upstream to 4.9 and 4.4 stable. The patch has already been ported to 4.14 and 4.15 stable. The patch needs mm context id that Andy added in commit f39681ed. I have lifted the mm context id change from Andy's upstream patch and included it here. Thanks. Tim Tim Chen (2): x86/mm: Give each mm a unique ID x86/speculation: Use Indirect Branch Prediction Barrier in context switch arch/x86/include/asm/mmu.h | 15 +++++++++++++-- arch/x86/include/asm/mmu_context.h | 5 +++++ arch/x86/include/asm/tlbflush.h | 2 ++ arch/x86/mm/tlb.c | 33 +++++++++++++++++++++++++++++++++ 4 files changed, 53 insertions(+), 2 deletions(-) -- 2.9.4 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org