From patchwork Wed May 20 12:31:44 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Hildenbrand X-Patchwork-Id: 282292 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=-6.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS autolearn=unavailable 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 536F0C433E0 for ; Wed, 20 May 2020 12:40:42 +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 1536220758 for ; Wed, 20 May 2020 12:40:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="FfT6U1vw" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1536220758 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]:55872 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jbO1Z-000432-82 for qemu-devel@archiver.kernel.org; Wed, 20 May 2020 08:40:41 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:40320) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jbNu2-0005aI-3V for qemu-devel@nongnu.org; Wed, 20 May 2020 08:32:54 -0400 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:27287 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1jbNu0-0007WD-U1 for qemu-devel@nongnu.org; Wed, 20 May 2020 08:32:53 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1589977972; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=4XAQd68lH/kqUWnHDmWOmNRHOw2XcqmcgUY9vF0Auws=; b=FfT6U1vwJIHmUHdU60KyjzrRlZsglkpDvj7zSnRhtqmGYbUa/8WV3T1CZoGweu9fVEm2zz 9j7uT2hQkhKHkXr7DRY2DTh7v9cYESbphy045/wb7tBVdDZYLlMyt+TeNVrMKdjq5kV0A1 /BSWY77Rlq1wGd9YQ8jtnfK0NjCg5yg= 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-87-z6IyJeDLP2mHW5T4h6jLeQ-1; Wed, 20 May 2020 08:32:50 -0400 X-MC-Unique: z6IyJeDLP2mHW5T4h6jLeQ-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 4E351107ACCD; Wed, 20 May 2020 12:32:49 +0000 (UTC) Received: from t480s.redhat.com (ovpn-113-76.ams2.redhat.com [10.36.113.76]) by smtp.corp.redhat.com (Postfix) with ESMTP id DBC486AD00; Wed, 20 May 2020 12:32:46 +0000 (UTC) From: David Hildenbrand To: qemu-devel@nongnu.org Subject: [PATCH v2 11/19] virtio-pci: Proxy for virtio-mem Date: Wed, 20 May 2020 14:31:44 +0200 Message-Id: <20200520123152.60527-12-david@redhat.com> In-Reply-To: <20200520123152.60527-1-david@redhat.com> References: <20200520123152.60527-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Received-SPF: pass client-ip=207.211.31.120; envelope-from=david@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/20 01:34:51 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_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN 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: Pankaj Gupta , Eduardo Habkost , kvm@vger.kernel.org, "Michael S . Tsirkin" , David Hildenbrand , "Dr . David Alan Gilbert" , qemu-s390x@nongnu.org, Igor Mammedov , Paolo Bonzini , Richard Henderson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Let's add a proxy for virtio-mem, make it a memory device, and pass-through the properties. Reviewed-by: Pankaj Gupta Cc: "Michael S. Tsirkin" Cc: Marcel Apfelbaum Cc: "Dr. David Alan Gilbert" Cc: Igor Mammedov Signed-off-by: David Hildenbrand --- hw/virtio/Makefile.objs | 1 + hw/virtio/virtio-mem-pci.c | 129 +++++++++++++++++++++++++++++++++++++ hw/virtio/virtio-mem-pci.h | 33 ++++++++++ include/hw/pci/pci.h | 1 + 4 files changed, 164 insertions(+) create mode 100644 hw/virtio/virtio-mem-pci.c create mode 100644 hw/virtio/virtio-mem-pci.h diff --git a/hw/virtio/Makefile.objs b/hw/virtio/Makefile.objs index 7df70e977e..b9661f9c01 100644 --- a/hw/virtio/Makefile.objs +++ b/hw/virtio/Makefile.objs @@ -19,6 +19,7 @@ obj-$(call land,$(CONFIG_VHOST_USER_FS),$(CONFIG_VIRTIO_PCI)) += vhost-user-fs-p obj-$(CONFIG_VIRTIO_IOMMU) += virtio-iommu.o obj-$(CONFIG_VHOST_VSOCK) += vhost-vsock.o obj-$(CONFIG_VIRTIO_MEM) += virtio-mem.o +common-obj-$(call land,$(CONFIG_VIRTIO_MEM),$(CONFIG_VIRTIO_PCI)) += virtio-mem-pci.o ifeq ($(CONFIG_VIRTIO_PCI),y) obj-$(CONFIG_VHOST_VSOCK) += vhost-vsock-pci.o diff --git a/hw/virtio/virtio-mem-pci.c b/hw/virtio/virtio-mem-pci.c new file mode 100644 index 0000000000..b325303b32 --- /dev/null +++ b/hw/virtio/virtio-mem-pci.c @@ -0,0 +1,129 @@ +/* + * Virtio MEM PCI device + * + * Copyright (C) 2020 Red Hat, Inc. + * + * Authors: + * David Hildenbrand + * + * This work is licensed under the terms of the GNU GPL, version 2. + * See the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include "virtio-mem-pci.h" +#include "hw/mem/memory-device.h" +#include "qapi/error.h" + +static void virtio_mem_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) +{ + VirtIOMEMPCI *mem_pci = VIRTIO_MEM_PCI(vpci_dev); + DeviceState *vdev = DEVICE(&mem_pci->vdev); + + qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); + object_property_set_bool(OBJECT(vdev), true, "realized", errp); +} + +static void virtio_mem_pci_set_addr(MemoryDeviceState *md, uint64_t addr, + Error **errp) +{ + object_property_set_uint(OBJECT(md), addr, VIRTIO_MEM_ADDR_PROP, errp); +} + +static uint64_t virtio_mem_pci_get_addr(const MemoryDeviceState *md) +{ + return object_property_get_uint(OBJECT(md), VIRTIO_MEM_ADDR_PROP, + &error_abort); +} + +static MemoryRegion *virtio_mem_pci_get_memory_region(MemoryDeviceState *md, + Error **errp) +{ + VirtIOMEMPCI *pci_mem = VIRTIO_MEM_PCI(md); + VirtIOMEM *vmem = VIRTIO_MEM(&pci_mem->vdev); + VirtIOMEMClass *vmc = VIRTIO_MEM_GET_CLASS(vmem); + + return vmc->get_memory_region(vmem, errp); +} + +static uint64_t virtio_mem_pci_get_plugged_size(const MemoryDeviceState *md, + Error **errp) +{ + return object_property_get_uint(OBJECT(md), VIRTIO_MEM_SIZE_PROP, + errp); +} + +static void virtio_mem_pci_fill_device_info(const MemoryDeviceState *md, + MemoryDeviceInfo *info) +{ + VirtioMEMDeviceInfo *vi = g_new0(VirtioMEMDeviceInfo, 1); + VirtIOMEMPCI *pci_mem = VIRTIO_MEM_PCI(md); + VirtIOMEM *vmem = VIRTIO_MEM(&pci_mem->vdev); + VirtIOMEMClass *vpc = VIRTIO_MEM_GET_CLASS(vmem); + DeviceState *dev = DEVICE(md); + + if (dev->id) { + vi->has_id = true; + vi->id = g_strdup(dev->id); + } + + /* let the real device handle everything else */ + vpc->fill_device_info(vmem, vi); + + info->u.virtio_mem.data = vi; + info->type = MEMORY_DEVICE_INFO_KIND_VIRTIO_MEM; +} + +static void virtio_mem_pci_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); + PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); + MemoryDeviceClass *mdc = MEMORY_DEVICE_CLASS(klass); + + k->realize = virtio_mem_pci_realize; + set_bit(DEVICE_CATEGORY_MISC, dc->categories); + pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; + pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_MEM; + pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; + pcidev_k->class_id = PCI_CLASS_OTHERS; + + mdc->get_addr = virtio_mem_pci_get_addr; + mdc->set_addr = virtio_mem_pci_set_addr; + mdc->get_plugged_size = virtio_mem_pci_get_plugged_size; + mdc->get_memory_region = virtio_mem_pci_get_memory_region; + mdc->fill_device_info = virtio_mem_pci_fill_device_info; +} + +static void virtio_mem_pci_instance_init(Object *obj) +{ + VirtIOMEMPCI *dev = VIRTIO_MEM_PCI(obj); + + virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), + TYPE_VIRTIO_MEM); + object_property_add_alias(obj, VIRTIO_MEM_BLOCK_SIZE_PROP, + OBJECT(&dev->vdev), VIRTIO_MEM_BLOCK_SIZE_PROP); + object_property_add_alias(obj, VIRTIO_MEM_SIZE_PROP, OBJECT(&dev->vdev), + VIRTIO_MEM_SIZE_PROP); + object_property_add_alias(obj, VIRTIO_MEM_REQUESTED_SIZE_PROP, + OBJECT(&dev->vdev), + VIRTIO_MEM_REQUESTED_SIZE_PROP); +} + +static const VirtioPCIDeviceTypeInfo virtio_mem_pci_info = { + .base_name = TYPE_VIRTIO_MEM_PCI, + .generic_name = "virtio-mem-pci", + .instance_size = sizeof(VirtIOMEMPCI), + .instance_init = virtio_mem_pci_instance_init, + .class_init = virtio_mem_pci_class_init, + .interfaces = (InterfaceInfo[]) { + { TYPE_MEMORY_DEVICE }, + { } + }, +}; + +static void virtio_mem_pci_register_types(void) +{ + virtio_pci_types_register(&virtio_mem_pci_info); +} +type_init(virtio_mem_pci_register_types) diff --git a/hw/virtio/virtio-mem-pci.h b/hw/virtio/virtio-mem-pci.h new file mode 100644 index 0000000000..8820cd6628 --- /dev/null +++ b/hw/virtio/virtio-mem-pci.h @@ -0,0 +1,33 @@ +/* + * Virtio MEM PCI device + * + * Copyright (C) 2020 Red Hat, Inc. + * + * Authors: + * David Hildenbrand + * + * This work is licensed under the terms of the GNU GPL, version 2. + * See the COPYING file in the top-level directory. + */ + +#ifndef QEMU_VIRTIO_MEM_PCI_H +#define QEMU_VIRTIO_MEM_PCI_H + +#include "hw/virtio/virtio-pci.h" +#include "hw/virtio/virtio-mem.h" + +typedef struct VirtIOMEMPCI VirtIOMEMPCI; + +/* + * virtio-mem-pci: This extends VirtioPCIProxy. + */ +#define TYPE_VIRTIO_MEM_PCI "virtio-mem-pci-base" +#define VIRTIO_MEM_PCI(obj) \ + OBJECT_CHECK(VirtIOMEMPCI, (obj), TYPE_VIRTIO_MEM_PCI) + +struct VirtIOMEMPCI { + VirtIOPCIProxy parent_obj; + VirtIOMEM vdev; +}; + +#endif /* QEMU_VIRTIO_MEM_PCI_H */ diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h index cfedf5a995..fec72d5a31 100644 --- a/include/hw/pci/pci.h +++ b/include/hw/pci/pci.h @@ -87,6 +87,7 @@ extern bool pci_available; #define PCI_DEVICE_ID_VIRTIO_VSOCK 0x1012 #define PCI_DEVICE_ID_VIRTIO_PMEM 0x1013 #define PCI_DEVICE_ID_VIRTIO_IOMMU 0x1014 +#define PCI_DEVICE_ID_VIRTIO_MEM 0x1015 #define PCI_VENDOR_ID_REDHAT 0x1b36 #define PCI_DEVICE_ID_REDHAT_BRIDGE 0x0001