From patchwork Thu Oct 1 17:46:48 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Snow X-Patchwork-Id: 272252 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=-9.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, 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 43A79C4727E for ; Thu, 1 Oct 2020 18:33:25 +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 C798320754 for ; Thu, 1 Oct 2020 18:33:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="CO8jlCn7" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C798320754 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:49080 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kO3ON-00016g-QH for qemu-devel@archiver.kernel.org; Thu, 01 Oct 2020 14:33:23 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:36836) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kO2fh-0003c2-Sm for qemu-devel@nongnu.org; Thu, 01 Oct 2020 13:47:13 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:34063) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kO2fc-0006qu-2P for qemu-devel@nongnu.org; Thu, 01 Oct 2020 13:47:13 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1601574427; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=WUlI7YRqEBWIcjGaIwTXsdH7kwWOc4UyHnJG6Saz5cY=; b=CO8jlCn7DNmeyP0E2fBy7723G/ag9v6HPsxF9XcZhw3LzbKght58pOwoxwLfMowxIEANzZ ZWCVPFw+DQU/OjI7QjVJ6WA7OGYEsqAT0JmWJ+f2G6WoRM25czsZBdTuvBEYJwJttI+8PV 1Xl74eP3Be9UVxUoJXgDF1PBRxR7e8A= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-345-6a19ufkbMw-QnXr8AZsglA-1; Thu, 01 Oct 2020 13:47:03 -0400 X-MC-Unique: 6a19ufkbMw-QnXr8AZsglA-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id E4B92803F45; Thu, 1 Oct 2020 17:47:01 +0000 (UTC) Received: from scv.redhat.com (ovpn-120-38.rdu2.redhat.com [10.10.120.38]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6BDB55C1CF; Thu, 1 Oct 2020 17:47:01 +0000 (UTC) From: John Snow To: Peter Maydell , qemu-devel@nongnu.org Subject: [PULL 8/9] ide: clear interrupt on command write Date: Thu, 1 Oct 2020 13:46:48 -0400 Message-Id: <20201001174649.1911016-9-jsnow@redhat.com> In-Reply-To: <20201001174649.1911016-1-jsnow@redhat.com> References: <20201001174649.1911016-1-jsnow@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=jsnow@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=jsnow@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/01 04:25:37 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, 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: , Cc: John Snow , qemu-block@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Not known to fix any bug, but I couldn't help but notice that ATA specifies that writing to this register should clear an interrupt. ATA7: Section 5.3.3 (Command register - Effect) ATA6: Section 7.4.4 (Command register - Effect) ATA5: Section 7.4.4 (Command register - Effect) ATA4: Section 7.4.4 (Command register - Effect) ATA3: Section 5.2.2 (Command register) Other editions: try searching for the phrase "Writing this register". Signed-off-by: John Snow --- hw/ide/core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/ide/core.c b/hw/ide/core.c index 8a55352e4b2..0d745d63a18 100644 --- a/hw/ide/core.c +++ b/hw/ide/core.c @@ -1312,6 +1312,7 @@ void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val) default: case ATA_IOPORT_WR_COMMAND: ide_clear_hob(bus); + qemu_irq_lower(bus->irq); ide_exec_cmd(bus, val); break; }