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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 47D2EC433ED for ; Tue, 18 May 2021 21:27:31 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id DF1F360FE9 for ; Tue, 18 May 2021 21:27:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DF1F360FE9 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ilande.co.uk Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:54462 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lj7FS-0003cL-0S for qemu-devel@archiver.kernel.org; Tue, 18 May 2021 17:27:30 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:58874) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lj7DO-00008c-Jq; Tue, 18 May 2021 17:25:22 -0400 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]:49860 helo=mail.default.ilande.uk0.bigv.io) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lj7DN-0001Tl-01; Tue, 18 May 2021 17:25:22 -0400 Received: from host217-39-58-213.range217-39.btcentralplus.com ([217.39.58.213] helo=kentang.home) by mail.default.ilande.uk0.bigv.io with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lj7DM-0002vs-2V; Tue, 18 May 2021 22:25:22 +0100 From: Mark Cave-Ayland To: qemu-devel@nongnu.org, qemu-stable@nongnu.org, pbonzini@redhat.com, fam@euphon.net, laurent@vivier.eu Date: Tue, 18 May 2021 22:25:09 +0100 Message-Id: <20210518212511.21688-1-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 217.39.58.213 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PATCH 0/2] esp: minor fixes for older Linux versions X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.default.ilande.uk0.bigv.io) Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.default.ilande.uk0.bigv.io X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 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" Following on from the ESP changes in QEMU 6.0 someone pointed out that the old Linux 2.6 ESP driver as used in Aurelian's SPARC image at https://people.debian.org/~aurel32/qemu/sparc/ emits a constant stream of "esp0: STEP_ASEL for tgt 0" messages to the console during boot. These patches solve the issue so that the older image is able to boot cleanly once again. The first patch is a genuine bug fix for the QEMU 6.0 changes whilst the second works around the delayed bus phase change when deferring IO transfers from the end of the command phase to the start of the information transfer phase. I've tested this using the extended suite of images used for the QEMU 6.0 changes and confirmed that there are no other regressions. Signed-off-by: Mark Cave-Ayland Mark Cave-Ayland (2): esp: only assert INTR_DC interrupt flag if selection fails esp: only set ESP_RSEQ at the start of the select sequence hw/scsi/esp.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) -- 2.20.1