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=-8.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT 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 44FC5C43613 for ; Mon, 24 Jun 2019 09:56:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 22D4620679 for ; Mon, 24 Jun 2019 09:56:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728804AbfFXJ4z (ORCPT ); Mon, 24 Jun 2019 05:56:55 -0400 Received: from foss.arm.com ([217.140.110.172]:44958 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728729AbfFXJ4a (ORCPT ); Mon, 24 Jun 2019 05:56:30 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 16058153B; Mon, 24 Jun 2019 02:56:30 -0700 (PDT) Received: from e121650-lin.cambridge.arm.com (e121650-lin.cambridge.arm.com [10.1.196.120]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id EBE3C3F71E; Mon, 24 Jun 2019 02:56:28 -0700 (PDT) From: Raphael Gault To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: jpoimboe@redhat.com, peterz@infradead.org, catalin.marinas@arm.com, will.deacon@arm.com, julien.thierry@arm.com, Raphael Gault Subject: [RFC V3 14/18] arm64: kvm: Annotate non-standard stack frame functions Date: Mon, 24 Jun 2019 10:55:44 +0100 Message-Id: <20190624095548.8578-15-raphael.gault@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190624095548.8578-1-raphael.gault@arm.com> References: <20190624095548.8578-1-raphael.gault@arm.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Both __guest_entry and __guest_exit functions do not setup a correct stack frame. Because they can be considered as callable functions, even if they are particular cases, we chose to silence the warnings given by objtool by annotating them as non-standard. Signed-off-by: Raphael Gault --- arch/arm64/kvm/hyp/entry.S | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/kvm/hyp/entry.S b/arch/arm64/kvm/hyp/entry.S index bd34016354ba..d8e122bd3f6f 100644 --- a/arch/arm64/kvm/hyp/entry.S +++ b/arch/arm64/kvm/hyp/entry.S @@ -82,6 +82,7 @@ ENTRY(__guest_enter) eret sb ENDPROC(__guest_enter) +asm_stack_frame_non_standard __guest_enter ENTRY(__guest_exit) // x0: return code @@ -171,3 +172,4 @@ abort_guest_exit_end: orr x0, x0, x5 1: ret ENDPROC(__guest_exit) +asm_stack_frame_non_standard __guest_exit -- 2.17.1 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=-8.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 0B55DC43613 for ; Mon, 24 Jun 2019 10:01:21 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D4C2620848 for ; Mon, 24 Jun 2019 10:01:20 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="VaOYrc/K" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D4C2620848 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=s7lTy1PnNOFhMQmiZ76nm0t1lc9pwnQYzqSFr9FkbNE=; b=VaOYrc/KK6eoj0Mf33NCAbHhhy 8GNK9mgISnzEdySLv/mpjfrvskHs5Rx+3l1Ff76PruawEDiU2DBsku1x0pRHd+jMzJINOWHp6+fU5 J5hgwXa+/XQiBuykX+52bdy8Br0gX8aAghpye7vNm7birxqIb5lYJU5ZCt6soam8IM8/95mYxzvEk h8quf957mcP0J7Qrn2WE03A5pnDCsc3ZcmPWJDpilxI3f709AljVu8Ch+2XMlcFRqldQlLi+sabhq u4uC+kWsCqUjgZ7+yg75dj2CS25w/z6n/ZJhppbJHhO6AbAysuu2+rzNIb9qwdv5ebSgbeNTChQC4 Qutewrsg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hfLmk-0002Ag-EN; Mon, 24 Jun 2019 10:01:14 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hfLiA-0005In-6x for linux-arm-kernel@lists.infradead.org; Mon, 24 Jun 2019 09:56:31 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 16058153B; Mon, 24 Jun 2019 02:56:30 -0700 (PDT) Received: from e121650-lin.cambridge.arm.com (e121650-lin.cambridge.arm.com [10.1.196.120]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id EBE3C3F71E; Mon, 24 Jun 2019 02:56:28 -0700 (PDT) From: Raphael Gault To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [RFC V3 14/18] arm64: kvm: Annotate non-standard stack frame functions Date: Mon, 24 Jun 2019 10:55:44 +0100 Message-Id: <20190624095548.8578-15-raphael.gault@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190624095548.8578-1-raphael.gault@arm.com> References: <20190624095548.8578-1-raphael.gault@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190624_025630_464792_0A2BEC66 X-CRM114-Status: UNSURE ( 8.15 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: julien.thierry@arm.com, peterz@infradead.org, catalin.marinas@arm.com, will.deacon@arm.com, Raphael Gault , jpoimboe@redhat.com MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Both __guest_entry and __guest_exit functions do not setup a correct stack frame. Because they can be considered as callable functions, even if they are particular cases, we chose to silence the warnings given by objtool by annotating them as non-standard. Signed-off-by: Raphael Gault --- arch/arm64/kvm/hyp/entry.S | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/kvm/hyp/entry.S b/arch/arm64/kvm/hyp/entry.S index bd34016354ba..d8e122bd3f6f 100644 --- a/arch/arm64/kvm/hyp/entry.S +++ b/arch/arm64/kvm/hyp/entry.S @@ -82,6 +82,7 @@ ENTRY(__guest_enter) eret sb ENDPROC(__guest_enter) +asm_stack_frame_non_standard __guest_enter ENTRY(__guest_exit) // x0: return code @@ -171,3 +172,4 @@ abort_guest_exit_end: orr x0, x0, x5 1: ret ENDPROC(__guest_exit) +asm_stack_frame_non_standard __guest_exit -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel