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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E5BAAC433F5 for ; Wed, 9 Mar 2022 12:51:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232812AbiCIMwg (ORCPT ); Wed, 9 Mar 2022 07:52:36 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56206 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230297AbiCIMwe (ORCPT ); Wed, 9 Mar 2022 07:52:34 -0500 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 32D6617777E for ; Wed, 9 Mar 2022 04:51:35 -0800 (PST) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out2.suse.de (Postfix) with ESMTP id CB26F1F382; Wed, 9 Mar 2022 12:51:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1646830293; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=QkquTILc7aEHvGG2BhXXypdsFY/K4IZMrpqZS6leWTc=; b=oVG3ZhWViFKiI1T3xF4qLO4s1THrZ/YK8ZHTa9oZGqyV+r1BpDMEH9gVzhFv/gjqoDF9IK BszTnNrwrsFAfqYNEd0J+l3XppRAsQNTsW52MN4spcM3HJJPibRfU+vFmCRkJDgd4YdSFD uEgfWgyP774lgMeRR7OZ24zCZg4P48w= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1646830293; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=QkquTILc7aEHvGG2BhXXypdsFY/K4IZMrpqZS6leWTc=; b=o+dfUm+iSID+6POQ+JDMUVw1Z5Do1EXfhsfo5qLBfWhM69bdVrE0QN5W9s+VUtGz8ILK6Q /XiuSAsrtRaBNnDQ== Received: from pobox.suse.cz (pobox.suse.cz [10.100.2.14]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by relay2.suse.de (Postfix) with ESMTPS id 27C92A3B85; Wed, 9 Mar 2022 12:51:28 +0000 (UTC) Date: Wed, 9 Mar 2022 13:51:33 +0100 (CET) From: Miroslav Benes To: Peter Zijlstra cc: x86@kernel.org, joao@overdrivepizza.com, hjl.tools@gmail.com, jpoimboe@redhat.com, andrew.cooper3@citrix.com, linux-kernel@vger.kernel.org, ndesaulniers@google.com, keescook@chromium.org, samitolvanen@google.com, mark.rutland@arm.com, alyssa.milburn@intel.com, rostedt@goodmis.org, mhiramat@kernel.org, alexei.starovoitov@gmail.com Subject: Re: [PATCH v4 00/45] x86: Kernel IBT In-Reply-To: <20220308153011.021123062@infradead.org> Message-ID: References: <20220308153011.021123062@infradead.org> User-Agent: Alpine 2.21 (LSU 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 8 Mar 2022, Peter Zijlstra wrote: > Hopefully last posting... > > Since last time: > > - updated the ftrace_location() patch (naveen, rostedt) > - added a few comments and clarifications (bpetkov) > - disable jump-tables (joao) > - verified clang-14-rc2 works > - fixed a whole bunch of objtool unreachable insn issue > - picked up a few more tags > > Patches go on top of tip/master + arm64/for-next/linkage. Also available here: > > git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git x86/wip.ibt FWIW objtool changes look good to me. I only came across arch/x86/kernel/head_64.o: warning: objtool: .noinstr.text: unexpected end of section with CC_HAS_IBT=n, which you already know about. CC_HAS_IBT=y compilation gives vmlinux.o: warning: objtool: xen_vcpu_setup()+0xa3: unreachable instruction Miroslav