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Tsirkin" , Paolo Bonzini , Bernhard Beschow Subject: [PATCH v2 41/43] hw/isa/piix: Share PIIX3 base class with PIIX4 Date: Sat, 22 Oct 2022 17:05:06 +0200 Message-Id: <20221022150508.26830-42-shentey@gmail.com> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221022150508.26830-1-shentey@gmail.com> References: <20221022150508.26830-1-shentey@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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=2a00:1450:4864:20::533; envelope-from=shentey@gmail.com; helo=mail-ed1-x533.google.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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, 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" X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1666563109852100001 Content-Type: text/plain; charset="utf-8" Having a common base class allows for substituting PIIX3 with PIIX4 and vice versa. Moreover, it makes PIIX4 implement the acpi-dev-aml-interface. Signed-off-by: Bernhard Beschow --- hw/isa/piix.c | 53 +++++++++++++++++++++++---------------------------- 1 file changed, 24 insertions(+), 29 deletions(-) diff --git a/hw/isa/piix.c b/hw/isa/piix.c index 4ced9995f9..c8c1a99bf1 100644 --- a/hw/isa/piix.c +++ b/hw/isa/piix.c @@ -422,13 +422,12 @@ static void build_pci_isa_aml(AcpiDevAmlIf *adev, Aml= *scope) } } =20 -static void pci_piix3_init(Object *obj) +static void pci_piix_init(Object *obj) { PIIXState *d =3D PIIX_PCI_DEVICE(obj); =20 object_initialize_child(obj, "pic", &d->pic, TYPE_ISA_PIC); object_initialize_child(obj, "rtc", &d->rtc, TYPE_MC146818_RTC); - object_initialize_child(obj, "ide", &d->ide, TYPE_PIIX3_IDE); } =20 static Property pci_piix_props[] =3D { @@ -443,7 +442,7 @@ static Property pci_piix_props[] =3D { DEFINE_PROP_END_OF_LIST(), }; =20 -static void pci_piix3_class_init(ObjectClass *klass, void *data) +static void pci_piix_class_init(ObjectClass *klass, void *data) { DeviceClass *dc =3D DEVICE_CLASS(klass); PCIDeviceClass *k =3D PCI_DEVICE_CLASS(klass); @@ -451,11 +450,8 @@ static void pci_piix3_class_init(ObjectClass *klass, v= oid *data) =20 dc->reset =3D piix_reset; dc->desc =3D "ISA bridge"; - dc->vmsd =3D &vmstate_piix3; dc->hotpluggable =3D false; k->vendor_id =3D PCI_VENDOR_ID_INTEL; - /* 82371SB PIIX3 PCI-to-ISA bridge (Step A1) */ - k->device_id =3D PCI_DEVICE_ID_INTEL_82371SB_0; k->class_id =3D PCI_CLASS_BRIDGE_ISA; /* * Reason: part of PIIX3 southbridge, needs to be wired up by @@ -466,13 +462,13 @@ static void pci_piix3_class_init(ObjectClass *klass, = void *data) adevc->build_dev_aml =3D build_pci_isa_aml; } =20 -static const TypeInfo piix3_pci_type_info =3D { +static const TypeInfo piix_pci_type_info =3D { .name =3D TYPE_PIIX3_PCI_DEVICE, .parent =3D TYPE_PCI_DEVICE, .instance_size =3D sizeof(PIIXState), - .instance_init =3D pci_piix3_init, + .instance_init =3D pci_piix_init, .abstract =3D true, - .class_init =3D pci_piix3_class_init, + .class_init =3D pci_piix_class_init, .interfaces =3D (InterfaceInfo[]) { { INTERFACE_CONVENTIONAL_PCI_DEVICE }, { TYPE_ACPI_DEV_AML_IF }, @@ -496,17 +492,29 @@ static void piix3_realize(PCIDevice *dev, Error **err= p) pci_bus_set_route_irq_fn(pci_bus, piix3_route_intx_pin_to_irq); } =20 +static void piix3_init(Object *obj) +{ + PIIXState *d =3D PIIX_PCI_DEVICE(obj); + + object_initialize_child(obj, "ide", &d->ide, TYPE_PIIX3_IDE); +} + 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; + dc->vmsd =3D &vmstate_piix3; } =20 static const TypeInfo piix3_info =3D { .name =3D TYPE_PIIX3_DEVICE, .parent =3D TYPE_PIIX3_PCI_DEVICE, + .instance_init =3D piix3_init, .class_init =3D piix3_class_init, }; =20 @@ -533,15 +541,20 @@ static void piix3_xen_realize(PCIDevice *dev, Error *= *errp) =20 static void piix3_xen_class_init(ObjectClass *klass, void *data) { + DeviceClass *dc =3D DEVICE_CLASS(klass); PCIDeviceClass *k =3D PCI_DEVICE_CLASS(klass); =20 k->config_write =3D piix3_write_config_xen; k->realize =3D piix3_xen_realize; + /* 82371SB PIIX3 PCI-to-ISA bridge (Step A1) */ + k->device_id =3D PCI_DEVICE_ID_INTEL_82371SB_0; + dc->vmsd =3D &vmstate_piix3; } =20 static const TypeInfo piix3_xen_info =3D { .name =3D TYPE_PIIX3_XEN_DEVICE, .parent =3D TYPE_PIIX3_PCI_DEVICE, + .instance_init =3D piix3_init, .class_init =3D piix3_xen_class_init, }; =20 @@ -573,8 +586,6 @@ static void piix4_init(Object *obj) { PIIXState *s =3D PIIX_PCI_DEVICE(obj); =20 - object_initialize_child(obj, "pic", &s->pic, TYPE_ISA_PIC); - object_initialize_child(obj, "rtc", &s->rtc, TYPE_MC146818_RTC); object_initialize_child(obj, "ide", &s->ide, TYPE_PIIX4_IDE); } =20 @@ -585,36 +596,20 @@ static void piix4_class_init(ObjectClass *klass, void= *data) =20 k->config_write =3D piix_write_config; k->realize =3D piix4_realize; - k->vendor_id =3D PCI_VENDOR_ID_INTEL; k->device_id =3D PCI_DEVICE_ID_INTEL_82371AB_0; - k->class_id =3D PCI_CLASS_BRIDGE_ISA; - dc->reset =3D piix_reset; - dc->desc =3D "ISA bridge"; dc->vmsd =3D &vmstate_piix4; - /* - * Reason: part of PIIX4 southbridge, needs to be wired up, - * e.g. by mips_malta_init() - */ - dc->user_creatable =3D false; - dc->hotpluggable =3D false; - device_class_set_props(dc, pci_piix_props); } =20 static const TypeInfo piix4_info =3D { .name =3D TYPE_PIIX4_PCI_DEVICE, - .parent =3D TYPE_PCI_DEVICE, - .instance_size =3D sizeof(PIIXState), + .parent =3D TYPE_PIIX3_PCI_DEVICE, .instance_init =3D piix4_init, .class_init =3D piix4_class_init, - .interfaces =3D (InterfaceInfo[]) { - { INTERFACE_CONVENTIONAL_PCI_DEVICE }, - { }, - }, }; =20 static void piix3_register_types(void) { - type_register_static(&piix3_pci_type_info); + type_register_static(&piix_pci_type_info); type_register_static(&piix3_info); type_register_static(&piix3_xen_info); type_register_static(&piix4_info); --=20 2.38.1