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=-9.7 required=3.0 tests=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 A3A9CC3A59C for ; Fri, 16 Aug 2019 12:25:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 85F8F2171F for ; Fri, 16 Aug 2019 12:25:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727446AbfHPMZC (ORCPT ); Fri, 16 Aug 2019 08:25:02 -0400 Received: from foss.arm.com ([217.140.110.172]:55876 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727403AbfHPMZA (ORCPT ); Fri, 16 Aug 2019 08:25:00 -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 264151570; Fri, 16 Aug 2019 05:25:00 -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 E097F3F706; Fri, 16 Aug 2019 05:24:58 -0700 (PDT) From: Raphael Gault To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, jpoimboe@redhat.com Cc: peterz@infradead.org, catalin.marinas@arm.com, will.deacon@arm.com, julien.thierry.kdev@gmail.com, raph.gault+kdev@gmail.com, Raphael Gault Subject: [RFC v4 14/18] arm64: kvm: Annotate non-standard stack frame functions Date: Fri, 16 Aug 2019 13:23:59 +0100 Message-Id: <20190816122403.14994-15-raphael.gault@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190816122403.14994-1-raphael.gault@arm.com> References: <20190816122403.14994-1-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 | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm64/kvm/hyp/entry.S b/arch/arm64/kvm/hyp/entry.S index e5cc8d66bf53..c3443bfd0944 100644 --- a/arch/arm64/kvm/hyp/entry.S +++ b/arch/arm64/kvm/hyp/entry.S @@ -15,6 +15,7 @@ #include #include #include +#include #define CPU_GP_REG_OFFSET(x) (CPU_GP_REGS + x) #define CPU_XREG_OFFSET(x) CPU_GP_REG_OFFSET(CPU_USER_PT_REGS + 8*x) @@ -97,6 +98,7 @@ alternative_else_nop_endif eret sb ENDPROC(__guest_enter) +asm_stack_frame_non_standard __guest_enter ENTRY(__guest_exit) // x0: return code @@ -193,3 +195,4 @@ abort_guest_exit_end: orr x0, x0, x5 1: ret ENDPROC(__guest_exit) +asm_stack_frame_non_standard __guest_exit -- 2.17.1