From nobody Wed Nov 27 19:46:25 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1697645406; cv=none; d=zohomail.com; s=zohoarc; b=GmP7CkC4ir0qm0dh8aIBffKkTCEgKJIEBrnux+HB7t18jNcFLdowtFYC2713JRhoF708eI/NVQEhJhNZcKVJBYBbudybrDEVKTDnJLkWcRvkM9eC9fV1Mnq0xZGCXDD1DQABbQjuGr68K6baJWH8C4MJDNEY4wHQ7eYEwYSmZBg= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1697645406; h=Content-Type:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=fiCWXY5zmRdQNGyxHv3gzp1e9XV+cYxYi5n0fzse+pU=; b=K6A9ROFLraJ77anfgUgNY2TS1pYaSpjhd2ExBcGwxxwvjoPyXe/Mr8A4CynpTdmG5B+IGdGEpb4Pk7EwweKfOMh3vFkIW1LorNu+MN+wFQKg873FhulonAJ+pKozLYwx+hYXxAbvySPoO4p7uEAE3QYJUiLKQC2oZ2MElYrvyTM= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1697645406845531.3009307770722; Wed, 18 Oct 2023 09:10:06 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qt8x0-0001XO-NS; Wed, 18 Oct 2023 11:59:14 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qt8wV-00010X-8D for qemu-devel@nongnu.org; Wed, 18 Oct 2023 11:58:45 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qt8wT-0007RN-H2 for qemu-devel@nongnu.org; Wed, 18 Oct 2023 11:58:43 -0400 Received: from mail-wr1-f69.google.com (mail-wr1-f69.google.com [209.85.221.69]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-516-ZDeoNrVdNXSC7N2W2ax3Lw-1; Wed, 18 Oct 2023 11:58:39 -0400 Received: by mail-wr1-f69.google.com with SMTP id ffacd0b85a97d-32d9b520d15so2819848f8f.3 for ; Wed, 18 Oct 2023 08:58:39 -0700 (PDT) Received: from redhat.com ([2a02:14f:1f2:2037:f34:d61b:7da0:a7be]) by smtp.gmail.com with ESMTPSA id b16-20020a056000055000b00326f5d0ce0asm2440158wrf.21.2023.10.18.08.58.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Oct 2023 08:58:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1697644720; 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: in-reply-to:in-reply-to:references:references; bh=fiCWXY5zmRdQNGyxHv3gzp1e9XV+cYxYi5n0fzse+pU=; b=TgOuSGogRzxDovkP9q0xLvcpA8bbbiSQvHXOMtNhF3OzkdKltfkh207H/yYwShHdWUWuIV 30CDpDl/EnbP7JAD9vUmn3uVuAoEPF/MNrLd4ao+3YS3SBNp6OO9oKpAqhJ0NimI7yDslm 6UqfgFtOIhz5aOyACg8bE2SX6c1fXC8= X-MC-Unique: ZDeoNrVdNXSC7N2W2ax3Lw-1 X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1697644717; x=1698249517; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=fiCWXY5zmRdQNGyxHv3gzp1e9XV+cYxYi5n0fzse+pU=; b=GQHM78TaffZgih9SyJpnczmVoyy1yhsXbTCBCWRMy269qE8YSrddr7TTBUIZIgopph crdqertDOlEFfj4ntdpmRLxSs1cULYs/+qfwqvPqbUyt04oQORKGOmLX4UFyAw1FIOFP AirELzN6NrjeaFvdjplzPZFGRoY7KzYdjnhkTc+ZvRXFpeduhkVdFu9UThxd8pcevmAP pqmeJqqdz2dDGwqD9owFfvPhHvBk1TJsrM7dgEQ8PHKKldmjP0VLLrXqrRQV6eLc/Bhc GVDzAIoWrjS5yxsgaNmLm1EoRmo48BbFiyf62haNHwgDE9uxt9G0faoqJywScc/Npodz thTA== X-Gm-Message-State: AOJu0YzZjsPV+1Zjsw/Oivn36g1l0fKFJ2qW2blNvRNOt5NDLW7yuIh0 QrjyAcp8pubi/lAnZa8J+sA9Q9zBRbgS9r4BrjU6EONn36czzkryKWrKyzCJzluGMwl87IV5VpU J/njZuV1/3HbuWLz9FkpRqN/s5E+AjxVaGQEz2C++4Y0BZcA1LaNLXkgkbqo5QGAhMh4Fles= X-Received: by 2002:adf:f847:0:b0:32d:aabf:1db3 with SMTP id d7-20020adff847000000b0032daabf1db3mr4613982wrq.24.1697644717763; Wed, 18 Oct 2023 08:58:37 -0700 (PDT) X-Google-Smtp-Source: AGHT+IG4gNQGeSOzSovDtRcMuO2O6Z98JJO62/LarZvDeApv5IeG1JsVk28S2bL8RCqejDMzbKb8NA== X-Received: by 2002:adf:f847:0:b0:32d:aabf:1db3 with SMTP id d7-20020adff847000000b0032daabf1db3mr4613961wrq.24.1697644717511; Wed, 18 Oct 2023 08:58:37 -0700 (PDT) Date: Wed, 18 Oct 2023 11:58:32 -0400 From: "Michael S. Tsirkin" To: qemu-devel@nongnu.org Cc: Peter Maydell , Bernhard Beschow , Marcel Apfelbaum , Philippe =?utf-8?Q?Mathieu-Daud=C3=A9?= , Aurelien Jarno , =?utf-8?B?SGVydsOp?= Poussineau Subject: [PULL 68/83] hw/isa/piix: Reuse PIIX3's PCI interrupt triggering in PIIX4 Message-ID: References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-Mailer: git-send-email 2.27.0.106.g8ac3dc51b1 X-Mutt-Fcc: =sent Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=mst@redhat.com; helo=us-smtp-delivery-124.mimecast.com 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_H3=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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1697645407653100004 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Bernhard Beschow Speeds up PIIX4 which resolves an old TODO. Also makes PIIX4 compatible wit= h Xen which relies on pci_bus_fire_intx_routing_notifier() to be fired. Signed-off-by: Bernhard Beschow Reviewed-by: Michael S. Tsirkin Message-Id: <20231007123843.127151-27-shentey@gmail.com> Signed-off-by: Michael S. Tsirkin --- hw/isa/piix.c | 27 +++------------------------ 1 file changed, 3 insertions(+), 24 deletions(-) diff --git a/hw/isa/piix.c b/hw/isa/piix.c index 449c1baaab..17677c2126 100644 --- a/hw/isa/piix.c +++ b/hw/isa/piix.c @@ -81,27 +81,6 @@ static void piix_set_pci_irq(void *opaque, int pirq, int= level) piix_set_pci_irq_level(s, pirq, level); } =20 -static void piix4_set_irq(void *opaque, int irq_num, int level) -{ - int i, pic_irq, pic_level; - PIIXState *s =3D opaque; - PCIBus *bus =3D pci_get_bus(&s->dev); - - /* now we change the pic irq level according to the piix irq mappings = */ - /* XXX: optimize */ - pic_irq =3D s->dev.config[PIIX_PIRQCA + irq_num]; - if (pic_irq < ISA_NUM_IRQS) { - /* The pic level is the logical OR of all the PCI irqs mapped to i= t. */ - pic_level =3D 0; - for (i =3D 0; i < PIIX_NUM_PIRQS; i++) { - if (pic_irq =3D=3D s->dev.config[PIIX_PIRQCA + i]) { - pic_level |=3D pci_bus_get_irq_level(bus, i); - } - } - qemu_set_irq(s->isa_irqs_in[pic_irq], pic_level); - } -} - static void piix_request_i8259_irq(void *opaque, int irq, int level) { PIIXState *s =3D opaque; @@ -223,7 +202,7 @@ static int piix4_post_load(void *opaque, int version_id) s->rcr =3D 0; } =20 - return 0; + return piix_post_load(opaque, version_id); } =20 static int piix3_pre_save(void *opaque) @@ -442,6 +421,7 @@ static void pci_piix_class_init(ObjectClass *klass, voi= d *data) PCIDeviceClass *k =3D PCI_DEVICE_CLASS(klass); AcpiDevAmlIfClass *adevc =3D ACPI_DEV_AML_IF_CLASS(klass); =20 + k->config_write =3D piix_write_config; dc->reset =3D piix_reset; dc->desc =3D "ISA bridge"; dc->hotpluggable =3D false; @@ -497,7 +477,6 @@ static void piix3_class_init(ObjectClass *klass, void *= data) DeviceClass *dc =3D DEVICE_CLASS(klass); PCIDeviceClass *k =3D PCI_DEVICE_CLASS(klass); =20 - k->config_write =3D piix_write_config; k->realize =3D piix3_realize; /* 82371SB PIIX3 PCI-to-ISA bridge (Step A1) */ k->device_id =3D PCI_DEVICE_ID_INTEL_82371SB_0; @@ -522,7 +501,7 @@ static void piix4_realize(PCIDevice *dev, Error **errp) return; } =20 - pci_bus_irqs(pci_bus, piix4_set_irq, s, PIIX_NUM_PIRQS); + pci_bus_irqs(pci_bus, piix_set_pci_irq, s, PIIX_NUM_PIRQS); } =20 static void piix4_init(Object *obj) --=20 MST