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 446B7C433EF for ; Wed, 20 Jul 2022 01:17:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240367AbiGTBRy (ORCPT ); Tue, 19 Jul 2022 21:17:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45932 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241274AbiGTBRS (ORCPT ); Tue, 19 Jul 2022 21:17:18 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A6D2965546; Tue, 19 Jul 2022 18:14:10 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 41CA46176A; Wed, 20 Jul 2022 01:14:10 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id F35E2C341CA; Wed, 20 Jul 2022 01:14:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1658279649; bh=fjlWKDNRFQ32bHV3uG8bQ7pYj+M5ALfv21vd27AQdRg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CpBUfG+TwXTd6DbDaX2s6gtUPgeeAsC1jHvHOhdObfERhVkMAW7e6EOts5BF+YrLf x1qN6jygp4dOMtF5E0QAKppdS/fUQjQhYu5VfmUP0SzLzlvRqNWjrpf9nYDZLXYP1g +e7KtnC/z0ptZYKv1Jh+WXdl83KF6tLyzK0X4731hSpyiQpL7XB6boixuJ4cboei9i 7TWv17EWFG5/NvcGCceg2OoBarJKMI3A/vhQ9sMAniP/aYxFB3AUpWiZdP5HqGxyjv f6Alh07UsX98h7QuENPJWS1A54lIby3TqBz6zdChlB5vZr+YJRicsiFoeOQEUFxwF+ TtX777pJv1BnQ== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Peter Zijlstra , Borislav Petkov , Josh Poimboeuf , Sasha Levin Subject: [PATCH AUTOSEL 5.15 08/42] objtool: Treat .text.__x86.* as noinstr Date: Tue, 19 Jul 2022 21:13:16 -0400 Message-Id: <20220720011350.1024134-8-sashal@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220720011350.1024134-1-sashal@kernel.org> References: <20220720011350.1024134-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Peter Zijlstra [ Upstream commit 951ddecf435659553ed15a9214e153a3af43a9a1 ] Needed because zen_untrain_ret() will be called from noinstr code. Also makes sense since the thunks MUST NOT contain instrumentation nor be poked with dynamic instrumentation. Signed-off-by: Peter Zijlstra (Intel) Signed-off-by: Borislav Petkov Reviewed-by: Josh Poimboeuf Signed-off-by: Borislav Petkov Signed-off-by: Sasha Levin --- tools/objtool/check.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/objtool/check.c b/tools/objtool/check.c index 8b3435af989a..d87b493544e1 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -291,7 +291,8 @@ static int decode_instructions(struct objtool_file *file) sec->text = true; if (!strcmp(sec->name, ".noinstr.text") || - !strcmp(sec->name, ".entry.text")) + !strcmp(sec->name, ".entry.text") || + !strncmp(sec->name, ".text.__x86.", 12)) sec->noinstr = true; for (offset = 0; offset < sec->sh.sh_size; offset += insn->len) { -- 2.35.1