From patchwork Mon Apr 29 15:02:50 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Igor Mammedov X-Patchwork-Id: 240388 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 0CF1E2C00C4 for ; Tue, 30 Apr 2013 01:04:15 +1000 (EST) Received: from localhost ([::1]:59088 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UWpcj-0003SR-5d for incoming@patchwork.ozlabs.org; Mon, 29 Apr 2013 11:04:13 -0400 Received: from eggs.gnu.org ([208.118.235.92]:52199) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UWpcF-0003Nu-05 for qemu-devel@nongnu.org; Mon, 29 Apr 2013 11:03:45 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UWpcC-0006XP-Kv for qemu-devel@nongnu.org; Mon, 29 Apr 2013 11:03:42 -0400 Received: from mx1.redhat.com ([209.132.183.28]:13260) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UWpcC-0006XB-Co for qemu-devel@nongnu.org; Mon, 29 Apr 2013 11:03:40 -0400 Received: from int-mx01.intmail.prod.int.phx2.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id r3TF36wX030628 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Mon, 29 Apr 2013 11:03:07 -0400 Received: from thinkpad.redhat.com (vpn-238-245.phx2.redhat.com [10.3.238.245]) by int-mx01.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id r3TF2vEH010752; Mon, 29 Apr 2013 11:03:03 -0400 From: Igor Mammedov To: qemu-devel@nongnu.org Date: Mon, 29 Apr 2013 17:02:50 +0200 Message-Id: <1367247776-7695-2-git-send-email-imammedo@redhat.com> In-Reply-To: <1367247776-7695-1-git-send-email-imammedo@redhat.com> References: <1367247776-7695-1-git-send-email-imammedo@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.67 on 10.5.11.11 X-MIME-Autoconverted: from 8bit to quoted-printable by mx1.redhat.com id r3TF36wX030628 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 209.132.183.28 Cc: aliguori@us.ibm.com, ehabkost@redhat.com, mst@redhat.com, jan.kiszka@siemens.com, claudio.fontana@huawei.com, aderumier@odiso.com, lcapitulino@redhat.com, jfrei@linux.vnet.ibm.com, yang.z.zhang@intel.com, pbonzini@redhat.com, afaerber@suse.de, lig.fnst@cn.fujitsu.com, rth@twiddle.net Subject: [Qemu-devel] [PATCH 1/7] target-i386: Introduce ICC bus/device/bridge X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Provides a hotpluggable bus for APIC and CPU. * icc-bridge will serve as a parent for icc-bus and provide mmio mapping services to child icc-devices. * icc-device will replace SysBusDevice as a parent of APIC and IOAPIC devices. Signed-off-by: Igor Mammedov [AF: QOM cleanups] Signed-off-by: Andreas Färber --- v2: - rename instance name of icc-bus to "icc" Signed-off-by: Igor Mammedov --- MAINTAINERS | 6 ++ default-configs/i386-softmmu.mak | 1 + default-configs/x86_64-softmmu.mak | 1 + hw/cpu/Makefile.objs | 1 + hw/cpu/icc_bus.c | 109 +++++++++++++++++++++++++++++++++++++ hw/i386/pc_piix.c | 7 +++ hw/i386/pc_q35.c | 7 +++ include/hw/cpu/icc_bus.h | 79 +++++++++++++++++++++++++++ 8 files changed, 211 insertions(+) create mode 100644 hw/cpu/icc_bus.c create mode 100644 include/hw/cpu/icc_bus.h diff --git a/MAINTAINERS b/MAINTAINERS index 4dfd8bf..be02724 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -644,6 +644,12 @@ F: qom/cpu.c F: include/qemu/cpu.h F: target-i386/cpu.c +ICC Bus +M: Igor Mammedov +S: Supported +F: include/hw/cpu/icc_bus.h +F: hw/cpu/icc_bus.c + Device Tree M: Peter Crosthwaite M: Alexander Graf diff --git a/default-configs/i386-softmmu.mak b/default-configs/i386-softmmu.mak index 368a776..833e722 100644 --- a/default-configs/i386-softmmu.mak +++ b/default-configs/i386-softmmu.mak @@ -44,3 +44,4 @@ CONFIG_LPC_ICH9=y CONFIG_PCI_Q35=y CONFIG_APIC=y CONFIG_IOAPIC=y +CONFIG_ICC_BUS=y diff --git a/default-configs/x86_64-softmmu.mak b/default-configs/x86_64-softmmu.mak index 2711b83..b749eb7 100644 --- a/default-configs/x86_64-softmmu.mak +++ b/default-configs/x86_64-softmmu.mak @@ -44,3 +44,4 @@ CONFIG_LPC_ICH9=y CONFIG_PCI_Q35=y CONFIG_APIC=y CONFIG_IOAPIC=y +CONFIG_ICC_BUS=y diff --git a/hw/cpu/Makefile.objs b/hw/cpu/Makefile.objs index a49ca04..4461ece 100644 --- a/hw/cpu/Makefile.objs +++ b/hw/cpu/Makefile.objs @@ -1,4 +1,5 @@ obj-$(CONFIG_ARM11MPCORE) += arm11mpcore.o obj-$(CONFIG_ARM9MPCORE) += a9mpcore.o obj-$(CONFIG_ARM15MPCORE) += a15mpcore.o +obj-$(CONFIG_ICC_BUS) += icc_bus.o diff --git a/hw/cpu/icc_bus.c b/hw/cpu/icc_bus.c new file mode 100644 index 0000000..3ac8eeb --- /dev/null +++ b/hw/cpu/icc_bus.c @@ -0,0 +1,109 @@ +/* icc_bus.c + * emulate x86 ICC (Interrupt Controller Communications) bus + * + * Copyright (c) 2013 Red Hat, Inc + * + * Authors: + * Igor Mammedov + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see + */ +#include "hw/cpu/icc_bus.h" +#include "hw/sysbus.h" + +/* icc-bridge implementation */ + +static void icc_bus_init(Object *obj) +{ + BusState *b = BUS(obj); + + b->allow_hotplug = true; +} + +static const TypeInfo icc_bus_info = { + .name = TYPE_ICC_BUS, + .parent = TYPE_BUS, + .instance_size = sizeof(ICCBus), + .instance_init = icc_bus_init, +}; + + +/* icc-device implementation */ + +static void icc_device_realize(DeviceState *dev, Error **errp) +{ + ICCDevice *id = ICC_DEVICE(dev); + ICCDeviceClass *idc = ICC_DEVICE_GET_CLASS(id); + + if (idc->init) { + if (idc->init(id) < 0) { + error_setg(errp, "%s initialization failed.", + object_get_typename(OBJECT(dev))); + } + } +} + +static void icc_device_class_init(ObjectClass *oc, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(oc); + + dc->realize = icc_device_realize; + dc->bus_type = TYPE_ICC_BUS; +} + +static const TypeInfo icc_device_info = { + .name = TYPE_ICC_DEVICE, + .parent = TYPE_DEVICE, + .abstract = true, + .instance_size = sizeof(ICCDevice), + .class_size = sizeof(ICCDeviceClass), + .class_init = icc_device_class_init, +}; + + +/* icc-bridge implementation */ + +typedef struct ICCBridgeState { + /*< private >*/ + SysBusDevice parent_obj; + /*< public >*/ + + ICCBus icc_bus; +} ICCBridgeState; + +#define ICC_BRIGDE(obj) OBJECT_CHECK(ICCBridgeState, (obj), TYPE_ICC_BRIDGE) + +static void icc_bridge_init(Object *obj) +{ + ICCBridgeState *s = ICC_BRIGDE(obj); + + qbus_create_inplace(&s->icc_bus, TYPE_ICC_BUS, DEVICE(s), "icc"); +} + +static const TypeInfo icc_bridge_info = { + .name = TYPE_ICC_BRIDGE, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_init = icc_bridge_init, + .instance_size = sizeof(ICCBridgeState), +}; + + +static void icc_bus_register_types(void) +{ + type_register_static(&icc_bus_info); + type_register_static(&icc_device_info); + type_register_static(&icc_bridge_info); +} + +type_init(icc_bus_register_types) diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c index 89b4cb4..51b738a 100644 --- a/hw/i386/pc_piix.c +++ b/hw/i386/pc_piix.c @@ -37,6 +37,7 @@ #include "hw/kvm/clock.h" #include "sysemu/sysemu.h" #include "hw/sysbus.h" +#include "hw/cpu/icc_bus.h" #include "sysemu/arch_init.h" #include "sysemu/blockdev.h" #include "hw/i2c/smbus.h" @@ -85,8 +86,13 @@ static void pc_init1(MemoryRegion *system_memory, MemoryRegion *ram_memory; MemoryRegion *pci_memory; MemoryRegion *rom_memory; + DeviceState *icc_bridge; void *fw_cfg = NULL; + icc_bridge = qdev_create(NULL, TYPE_ICC_BRIDGE); + object_property_add_child(qdev_get_machine(), "icc-bridge", + OBJECT(icc_bridge), NULL); + pc_cpus_init(cpu_model); pc_acpi_init("acpi-dsdt.aml"); @@ -161,6 +167,7 @@ static void pc_init1(MemoryRegion *system_memory, if (pci_enabled) { ioapic_init_gsi(gsi_state, "i440fx"); } + qdev_init_nofail(icc_bridge); pc_register_ferr_irq(gsi[13]); diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c index f160893..317dd0c 100644 --- a/hw/i386/pc_q35.c +++ b/hw/i386/pc_q35.c @@ -41,6 +41,7 @@ #include "hw/ide/pci.h" #include "hw/ide/ahci.h" #include "hw/usb.h" +#include "hw/cpu/icc_bus.h" /* ICH9 AHCI has 6 ports */ #define MAX_SATA_PORTS 6 @@ -73,6 +74,11 @@ static void pc_q35_init(QEMUMachineInitArgs *args) int i; ICH9LPCState *ich9_lpc; PCIDevice *ahci; + DeviceState *icc_bridge; + + icc_bridge = qdev_create(NULL, TYPE_ICC_BRIDGE); + object_property_add_child(qdev_get_machine(), "icc-bridge", + OBJECT(icc_bridge), NULL); pc_cpus_init(cpu_model); pc_acpi_init("q35-acpi-dsdt.aml"); @@ -156,6 +162,7 @@ static void pc_q35_init(QEMUMachineInitArgs *args) if (pci_enabled) { ioapic_init_gsi(gsi_state, NULL); } + qdev_init_nofail(icc_bridge); pc_register_ferr_irq(gsi[13]); diff --git a/include/hw/cpu/icc_bus.h b/include/hw/cpu/icc_bus.h new file mode 100644 index 0000000..d728a7d --- /dev/null +++ b/include/hw/cpu/icc_bus.h @@ -0,0 +1,79 @@ +/* icc_bus.h + * emulate x86 ICC (Interrupt Controller Communications) bus + * + * Copyright (c) 2013 Red Hat, Inc + * + * Authors: + * Igor Mammedov + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see + */ +#ifndef ICC_BUS_H +#define ICC_BUS_H + +#include "hw/qdev-core.h" + +#define TYPE_ICC_BUS "icc-bus" + +#ifndef CONFIG_USER_ONLY + +/** + * ICCBus: + * + * ICC bus + */ +typedef struct ICCBus { + /*< private >*/ + BusState parent_obj; + /*< public >*/ +} ICCBus; + +#define ICC_BUS(obj) OBJECT_CHECK(ICCBus, (obj), TYPE_ICC_BUS) + +/** + * ICCDevice: + * + * ICC device + */ +typedef struct ICCDevice { + /*< private >*/ + DeviceState qdev; + /*< public >*/ +} ICCDevice; + +/** + * ICCDeviceClass: + * @init: Initialization callback for derived classes. + * + * ICC device class + */ +typedef struct ICCDeviceClass { + /*< private >*/ + DeviceClass parent_class; + /*< public >*/ + + int (*init)(ICCDevice *dev); /* TODO replace with QOM realize */ +} ICCDeviceClass; + +#define TYPE_ICC_DEVICE "icc-device" +#define ICC_DEVICE(obj) OBJECT_CHECK(ICCDevice, (obj), TYPE_ICC_DEVICE) +#define ICC_DEVICE_CLASS(klass) \ + OBJECT_CLASS_CHECK(ICCDeviceClass, (klass), TYPE_ICC_DEVICE) +#define ICC_DEVICE_GET_CLASS(obj) \ + OBJECT_GET_CLASS(ICCDeviceClass, (obj), TYPE_ICC_DEVICE) + +#define TYPE_ICC_BRIDGE "icc-bridge" + +#endif /* CONFIG_USER_ONLY */ +#endif