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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7CFAEC433EF for ; Wed, 22 Dec 2021 20:23:28 +0000 (UTC) Received: from localhost ([::1]:36686 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1n0891-0001Hz-6L for qemu-devel@archiver.kernel.org; Wed, 22 Dec 2021 15:23:27 -0500 Received: from eggs.gnu.org ([209.51.188.92]:36212) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n086I-0007dS-ET for qemu-devel@nongnu.org; Wed, 22 Dec 2021 15:20:39 -0500 Received: from mout.kundenserver.de ([212.227.126.134]:40133) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n086G-0006ZE-TY for qemu-devel@nongnu.org; Wed, 22 Dec 2021 15:20:38 -0500 Received: from [192.168.100.1] ([82.142.30.186]) by mrelayeu.kundenserver.de (mreue009 [213.165.67.103]) with ESMTPSA (Nemesis) id 1N9dkD-1mNLSW468D-015cgX; Wed, 22 Dec 2021 21:20:34 +0100 Message-ID: <5596c81a-4fb3-84ef-6973-df78688f788d@vivier.eu> Date: Wed, 22 Dec 2021 21:20:33 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.4.0 Subject: Re: [PATCH v2 5/7] linux-user/nios2: Fix EA vs PC confusion Content-Language: fr To: Richard Henderson , qemu-devel@nongnu.org References: <20211221025012.1057923-1-richard.henderson@linaro.org> <20211221025012.1057923-6-richard.henderson@linaro.org> From: Laurent Vivier In-Reply-To: <20211221025012.1057923-6-richard.henderson@linaro.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Provags-ID: V03:K1:4DleJtLK1Jyz7WyrRchGXohXJjXOU06r1OS3jFTIVBZ+lWWyrHH FcGBjk9xgX9iIzGIp1fqD3gRsId5mFx/f+6eGjnfP6Gz/yJHvOdG5ZVi/k7Lcm573Cr5hto ZamGEM0rxSpVsfyR+h8efXYkj2o2FaUh/ReZfjeU+sfaFPXUjjJ7FvvHyqQD8C5hMNekxcy KetW9y6Yngl/WT0YhGNrw== X-UI-Out-Filterresults: notjunk:1;V03:K0:V6eROHZxz+A=:8NwOGv1Snfk3uwxSKmTTgB slUuWOgTrMJ38MeWow6AyjhOX1WC977GtwyRhVsZhRbBes9HkCIgg5cGHDu15I0DwjCYj/HE2 LsG5XH1m0kSFSuXsOVweM7LupUY+DBEDvDQg+zhY1/dReRLCjIHbAgDrOHpJPR+OSrbqPIsNr WckVrKNZoiXKZYlFRNlwwkHqEJ2v88vJHQWLOy/I5/hsvGe5LSRUAPpdApEad4wOm1cJI8OVk df/GhpFpcXP2CqS/ymodfnGiSdcjg4Nj9IIXWcPpxs9+onfexqhZcnsA9OQVfelC50tr6EIsK j7gmF62ltnQ6xb6xwDCvphfuCMmOfDR8J1KyruwQJ5quaXf1Qu2fivL/xascv3YZXAkiPKdtZ t73wzeGpDo28PA54l6DJNJEDDodyM5o336cyQM/EmUDmmeV1YD2GUfGNyuIjsXai4gQStPxBm Rk0auF6LvB2nTKvR2+tLjzuHPrQurlgJDERyQYoiXdatn0DUQN8TSlqAWg2pDAI9Cgcg0FbII OrTOBOJmxjiYkF1JLNmnqKU1SBmOXr5VyJPFw6x08QVo0U/RGyRJhaVsCzI7I/FFnoGeAFUCZ YaB1Z96tVky19P3sijXfn485mlgWiGWOVRCHjCHAL70wvu3+JCwGJlDSZJ9+/8V/QOEan8yeP k+JwaW9mf3FMDty9a+HBXHy9PsT7whtxQhKv0OB59M7Wfx8ca8vYGCDK+aOtwfsZdMIs= Received-SPF: none client-ip=212.227.126.134; envelope-from=laurent@vivier.eu; helo=mout.kundenserver.de X-Spam_score_int: -25 X-Spam_score: -2.6 X-Spam_bar: -- X-Spam_report: (-2.6 / 5.0 requ) BAYES_00=-1.9, NICE_REPLY_A=-0.694, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Le 21/12/2021 à 03:50, Richard Henderson a écrit : > The real kernel will talk about the user PC as EA, > because that's where the hardware will have copied it, > and where it expects to put it to then use ERET. > But qemu does not emulate all of the exception stuff > while emulating user-only. Manipulate PC directly. > > This fixes signal entry and return, and eliminates > some slight confusion from target_cpu_copy_regs. > > Signed-off-by: Richard Henderson > --- > linux-user/nios2/cpu_loop.c | 5 +---- > linux-user/nios2/signal.c | 6 +++--- > 2 files changed, 4 insertions(+), 7 deletions(-) > Reviewed-by: Laurent Vivier