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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,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 D20F1C48BC2 for ; Mon, 21 Jun 2021 12:04:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B938C61042 for ; Mon, 21 Jun 2021 12:04:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230438AbhFUMGY (ORCPT ); Mon, 21 Jun 2021 08:06:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53548 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230288AbhFUMGF (ORCPT ); Mon, 21 Jun 2021 08:06:05 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0BCE9C061760 for ; Mon, 21 Jun 2021 05:03:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Type:MIME-Version:References: Subject:Cc:To:From:Date:Message-ID:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:In-Reply-To; bh=PDlGxNdOLkQWqQwFHTXo6kbEGz9HT8kDERsuFlZm2vA=; b=U9FQmBHO13z8XCzZYW7XmgQ880 +1AVBrHGEftiYXMRNjyOVQDmTEU/4bn0WQpxJoSxFh7VEe3FTHwYhs8DCPpUaav7WaQaHgiQ3lF44 7nc/ZD2hydOORx7CQlm2w0VLT+EhQvWvvcNxkd+z1YAYS93mZZIguzY9nPJBCO9t2aAU1ZZn1ULsk 31oujWs98qsM6EiosMixKGaQ8HkUUlesiBc7nE728kn0eGu1HzBz8RbPdLy1XPCQiW2ShTHuhXJln v0bnYjjvKyUzlR85ZA/+6AuP/bYngKle/vcNGbdyQSoiqyfZEgxkaNt+Mb5lLgxZ+sERTH5c+4Pmi LZGzyP4w==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1lvIdV-00D3ht-24; Mon, 21 Jun 2021 12:02:45 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 3097C300233; Mon, 21 Jun 2021 14:02:39 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 0) id EF382235EE381; Mon, 21 Jun 2021 14:02:38 +0200 (CEST) Message-ID: <20210621120120.606560778@infradead.org> User-Agent: quilt/0.66 Date: Mon, 21 Jun 2021 13:12:36 +0200 From: Peter Zijlstra To: jpoimboe@redhat.com, tglx@linutronix.de Cc: linux-kernel@vger.kernel.org, peterz@infradead.org, joro@8bytes.org, boris.ostrovsky@oracle.com, jgross@suse.com, x86@kernel.org, mbenes@suse.com Subject: [PATCH 03/18] x86/xen: Fix noinstr fail in exc_xen_unknown_trap() References: <20210621111233.344964031@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org vmlinux.o: warning: objtool: exc_xen_unknown_trap()+0x7: call to printk() leaves .noinstr.text section Fixes: 2e92493637a0 ("x86/xen: avoid warning in Xen pv guest with CONFIG_AMD_MEM_ENCRYPT enabled") Signed-off-by: Peter Zijlstra (Intel) --- arch/x86/xen/enlighten_pv.c | 2 ++ 1 file changed, 2 insertions(+) --- a/arch/x86/xen/enlighten_pv.c +++ b/arch/x86/xen/enlighten_pv.c @@ -592,8 +592,10 @@ DEFINE_IDTENTRY_RAW(xenpv_exc_debug) DEFINE_IDTENTRY_RAW(exc_xen_unknown_trap) { /* This should never happen and there is no way to handle it. */ + instrumentation_begin(); pr_err("Unknown trap in Xen PV mode."); BUG(); + instrumentation_end(); } #ifdef CONFIG_X86_MCE