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Thu, 27 Aug 2020 18:12:50 +0000 Received: from abhmp0005.oracle.com (abhmp0005.oracle.com [141.146.116.11]) by userv0121.oracle.com (8.14.4/8.13.8) with ESMTP id 07RICli2020659; Thu, 27 Aug 2020 18:12:47 GMT Received: from flaka.hsd1.ca.comcast.net (/10.159.136.159) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 27 Aug 2020 11:12:47 -0700 From: elena.ufimtseva@oracle.com To: qemu-devel@nongnu.org Subject: [PATCH v9 04/20] multi-process: setup a machine object for remote device process Date: Thu, 27 Aug 2020 11:12:15 -0700 Message-Id: <20200827181231.22778-5-elena.ufimtseva@oracle.com> X-Mailer: git-send-email 2.25.GIT In-Reply-To: <20200827181231.22778-1-elena.ufimtseva@oracle.com> References: <20200827181231.22778-1-elena.ufimtseva@oracle.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9726 signatures=668679 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxlogscore=999 phishscore=0 bulkscore=0 suspectscore=1 spamscore=0 mlxscore=0 adultscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2008270136 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9726 signatures=668679 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 bulkscore=0 adultscore=0 malwarescore=0 phishscore=0 priorityscore=1501 clxscore=1015 suspectscore=1 spamscore=0 impostorscore=0 mlxscore=0 mlxlogscore=999 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2008270136 Received-SPF: pass client-ip=156.151.31.86; envelope-from=elena.ufimtseva@oracle.com; helo=userp2130.oracle.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/27 13:54:41 X-ACL-Warn: Detected OS = Linux 3.1-3.10 [fuzzy] X-Spam_score_int: -53 X-Spam_score: -5.4 X-Spam_bar: ----- X-Spam_report: (-5.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.959, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, UNPARSEABLE_RELAY=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: elena.ufimtseva@oracle.com, fam@euphon.net, swapnil.ingle@nutanix.com, john.g.johnson@oracle.com, kraxel@redhat.com, jag.raman@oracle.com, quintela@redhat.com, mst@redhat.com, armbru@redhat.com, kanth.ghatraju@oracle.com, felipe@nutanix.com, thuth@redhat.com, ehabkost@redhat.com, konrad.wilk@oracle.com, dgilbert@redhat.com, stefanha@redhat.com, thanos.makatos@nutanix.com, rth@twiddle.net, kwolf@redhat.com, berrange@redhat.com, mreitz@redhat.com, ross.lagerwall@citrix.com, marcandre.lureau@gmail.com, pbonzini@redhat.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" From: Jagannathan Raman remote-machine object sets up various subsystems of the remote device process. Instantiate PCI host bridge object and initialize RAM, IO & PCI memory regions. Signed-off-by: John G Johnson Signed-off-by: Jagannathan Raman Signed-off-by: Elena Ufimtseva Reviewed-by: Stefan Hajnoczi --- MAINTAINERS | 2 ++ hw/i386/meson.build | 1 + hw/i386/remote.c | 69 ++++++++++++++++++++++++++++++++++++ include/hw/i386/remote.h | 28 +++++++++++++++ include/hw/pci-host/remote.h | 1 + 5 files changed, 101 insertions(+) create mode 100644 hw/i386/remote.c create mode 100644 include/hw/i386/remote.h diff --git a/MAINTAINERS b/MAINTAINERS index 76cff0fc12..38d19c83cd 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3043,6 +3043,8 @@ M: John G Johnson S: Maintained F: hw/pci-host/remote.c F: include/hw/pci-host/remote.h +F: hw/i386/remote.c +F: include/hw/i386/remote.h Build and test automation ------------------------- diff --git a/hw/i386/meson.build b/hw/i386/meson.build index 63918fbe22..1c1668c5db 100644 --- a/hw/i386/meson.build +++ b/hw/i386/meson.build @@ -23,6 +23,7 @@ i386_ss.add(when: 'CONFIG_PC', if_true: files( 'pc_sysfw.c', 'acpi-build.c', 'port92.c')) +i386_ss.add(when: 'CONFIG_MPQEMU', if_true: files('remote.c')) subdir('kvm') subdir('xen') diff --git a/hw/i386/remote.c b/hw/i386/remote.c new file mode 100644 index 0000000000..a67be33396 --- /dev/null +++ b/hw/i386/remote.c @@ -0,0 +1,69 @@ +/* + * Machine for remote device + * + * This machine type is used by the remote device process in multi-process + * QEMU. QEMU device models depend on parent busses, interrupt controllers, + * memory regions, etc. The remote machine type offers this environment so + * that QEMU device models can be used as remote devices. + * + * Copyright © 2018, 2020 Oracle and/or its affiliates. + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + * + */ + +#include "qemu/osdep.h" +#include "qemu-common.h" + +#include "hw/i386/remote.h" +#include "exec/address-spaces.h" +#include "exec/memory.h" +#include "qapi/error.h" + +static void remote_machine_init(MachineState *machine) +{ + MemoryRegion *system_memory, *system_io, *pci_memory; + RemoteMachineState *s = REMOTE_MACHINE(machine); + RemotePCIHost *rem_host; + + system_memory = get_system_memory(); + system_io = get_system_io(); + + pci_memory = g_new(MemoryRegion, 1); + memory_region_init(pci_memory, NULL, "pci", UINT64_MAX); + + rem_host = REMOTE_HOST_DEVICE(qdev_new(TYPE_REMOTE_HOST_DEVICE)); + + rem_host->mr_pci_mem = pci_memory; + rem_host->mr_sys_mem = system_memory; + rem_host->mr_sys_io = system_io; + + s->host = rem_host; + + object_property_add_child(OBJECT(s), "remote-device", OBJECT(rem_host)); + memory_region_add_subregion_overlap(system_memory, 0x0, pci_memory, -1); + + qdev_realize(DEVICE(rem_host), sysbus_get_default(), &error_fatal); +} + +static void remote_machine_class_init(ObjectClass *oc, void *data) +{ + MachineClass *mc = MACHINE_CLASS(oc); + + mc->init = remote_machine_init; +} + +static const TypeInfo remote_machine = { + .name = TYPE_REMOTE_MACHINE, + .parent = TYPE_MACHINE, + .instance_size = sizeof(RemoteMachineState), + .class_init = remote_machine_class_init, +}; + +static void remote_machine_register_types(void) +{ + type_register_static(&remote_machine); +} + +type_init(remote_machine_register_types); diff --git a/include/hw/i386/remote.h b/include/hw/i386/remote.h new file mode 100644 index 0000000000..5b36b25ca1 --- /dev/null +++ b/include/hw/i386/remote.h @@ -0,0 +1,28 @@ +/* + * Remote machine configuration + * + * Copyright © 2018, 2020 Oracle and/or its affiliates. + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + * + */ + +#ifndef REMOTE_MACHINE_H +#define REMOTE_MACHINE_H + +#include "qom/object.h" +#include "hw/boards.h" +#include "hw/pci-host/remote.h" + +typedef struct RemoteMachineState { + MachineState parent_obj; + + RemotePCIHost *host; +} RemoteMachineState; + +#define TYPE_REMOTE_MACHINE "remote-machine" +#define REMOTE_MACHINE(obj) \ + OBJECT_CHECK(RemoteMachineState, (obj), TYPE_REMOTE_MACHINE) + +#endif diff --git a/include/hw/pci-host/remote.h b/include/hw/pci-host/remote.h index bab6d3c4f0..cc0fff4ae3 100644 --- a/include/hw/pci-host/remote.h +++ b/include/hw/pci-host/remote.h @@ -25,6 +25,7 @@ typedef struct RemotePCIHost { MemoryRegion *mr_pci_mem; MemoryRegion *mr_sys_io; + MemoryRegion *mr_sys_mem; } RemotePCIHost; #endif