From patchwork Fri Jun 23 12:20:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Hildenbrand X-Patchwork-Id: 13290463 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id A147CEB64DD for ; Fri, 23 Jun 2023 12:23:38 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qCfoA-0005Ly-Ll; Fri, 23 Jun 2023 08:22:34 -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 1qCfn4-0003pd-8j for qemu-devel@nongnu.org; Fri, 23 Jun 2023 08:21:27 -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 1qCfmw-0003mv-KS for qemu-devel@nongnu.org; Fri, 23 Jun 2023 08:21:23 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1687522874; 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=ivf4UnFqtE88jzxzZ+D326WLpcGC+zkvB17stK3POMc=; b=GZDBschD6GF8bF98mIV0S7QllLEv9P4ldikDAWT2QL5pe/rIQH/a9WG1Q/NavJFq6aBfzn N+am9IGNnUP7z7y5jgT3jnvlP11hLd6HY59jEEFfJeVY/uKZrN83ypJ9Q7qqkLzYUeAkVw LfJ3ceo1NGsqBq/V5i0+EV4MiEIEojg= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-650-cntRAJzbODCn9cUvlWH5uQ-1; Fri, 23 Jun 2023 08:21:07 -0400 X-MC-Unique: cntRAJzbODCn9cUvlWH5uQ-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 1FCB73C23109; Fri, 23 Jun 2023 12:21:07 +0000 (UTC) Received: from t480s.redhat.com (unknown [10.22.32.17]) by smtp.corp.redhat.com (Postfix) with ESMTP id 53DB940C2071; Fri, 23 Jun 2023 12:21:05 +0000 (UTC) From: David Hildenbrand To: qemu-devel@nongnu.org Cc: David Hildenbrand , Peter Maydell , Paolo Bonzini , Richard Henderson , Eduardo Habkost , "Michael S. Tsirkin" , Marcel Apfelbaum , Igor Mammedov , qemu-arm@nongnu.org, Gavin Shan Subject: [PATCH v2 3/7] arm/virt: Use virtio-md-pci (un)plug functions Date: Fri, 23 Jun 2023 14:20:52 +0200 Message-Id: <20230623122056.374312-4-david@redhat.com> In-Reply-To: <20230623122056.374312-1-david@redhat.com> References: <20230623122056.374312-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.1 Received-SPF: pass client-ip=170.10.133.124; envelope-from=david@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_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Let's use our new helper functions. Note that virtio-pmem-pci is not enabled for arm and, therefore, not compiled in. Signed-off-by: David Hildenbrand --- hw/arm/virt.c | 81 ++++++++------------------------------------------- 1 file changed, 12 insertions(+), 69 deletions(-) diff --git a/hw/arm/virt.c b/hw/arm/virt.c index 9b9f7d9c68..4ab8468e0b 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -72,11 +72,10 @@ #include "hw/arm/smmuv3.h" #include "hw/acpi/acpi.h" #include "target/arm/internals.h" -#include "hw/mem/memory-device.h" #include "hw/mem/pc-dimm.h" #include "hw/mem/nvdimm.h" #include "hw/acpi/generic_event_device.h" -#include "hw/virtio/virtio-mem-pci.h" +#include "hw/virtio/virtio-md-pci.h" #include "hw/virtio/virtio-iommu.h" #include "hw/char/pl011.h" #include "qemu/guest-random.h" @@ -2744,64 +2743,6 @@ static void virt_memory_plug(HotplugHandler *hotplug_dev, dev, &error_abort); } -static void virt_virtio_md_pci_pre_plug(HotplugHandler *hotplug_dev, - DeviceState *dev, Error **errp) -{ - HotplugHandler *hotplug_dev2 = qdev_get_bus_hotplug_handler(dev); - Error *local_err = NULL; - - if (!hotplug_dev2 && dev->hotplugged) { - /* - * Without a bus hotplug handler, we cannot control the plug/unplug - * order. We should never reach this point when hotplugging on ARM. - * However, it's nice to add a safety net, similar to what we have - * on x86. - */ - error_setg(errp, "hotplug of virtio based memory devices not supported" - " on this bus."); - return; - } - /* - * First, see if we can plug this memory device at all. If that - * succeeds, branch of to the actual hotplug handler. - */ - memory_device_pre_plug(MEMORY_DEVICE(dev), MACHINE(hotplug_dev), NULL, - &local_err); - if (!local_err && hotplug_dev2) { - hotplug_handler_pre_plug(hotplug_dev2, dev, &local_err); - } - error_propagate(errp, local_err); -} - -static void virt_virtio_md_pci_plug(HotplugHandler *hotplug_dev, - DeviceState *dev, Error **errp) -{ - HotplugHandler *hotplug_dev2 = qdev_get_bus_hotplug_handler(dev); - Error *local_err = NULL; - - /* - * Plug the memory device first and then branch off to the actual - * hotplug handler. If that one fails, we can easily undo the memory - * device bits. - */ - memory_device_plug(MEMORY_DEVICE(dev), MACHINE(hotplug_dev)); - if (hotplug_dev2) { - hotplug_handler_plug(hotplug_dev2, dev, &local_err); - if (local_err) { - memory_device_unplug(MEMORY_DEVICE(dev), MACHINE(hotplug_dev)); - } - } - error_propagate(errp, local_err); -} - -static void virt_virtio_md_pci_unplug_request(HotplugHandler *hotplug_dev, - DeviceState *dev, Error **errp) -{ - /* We don't support hot unplug of virtio based memory devices */ - error_setg(errp, "virtio based memory devices cannot be unplugged."); -} - - static void virt_machine_device_pre_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev, Error **errp) { @@ -2809,8 +2750,8 @@ static void virt_machine_device_pre_plug_cb(HotplugHandler *hotplug_dev, if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { virt_memory_pre_plug(hotplug_dev, dev, errp); - } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MEM_PCI)) { - virt_virtio_md_pci_pre_plug(hotplug_dev, dev, errp); + } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MD_PCI)) { + virtio_md_pci_pre_plug(VIRTIO_MD_PCI(dev), MACHINE(hotplug_dev), errp); } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_IOMMU_PCI)) { hwaddr db_start = 0, db_end = 0; char *resv_prop_str; @@ -2859,12 +2800,11 @@ static void virt_machine_device_plug_cb(HotplugHandler *hotplug_dev, SYS_BUS_DEVICE(dev)); } } + if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { virt_memory_plug(hotplug_dev, dev, errp); - } - - if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MEM_PCI)) { - virt_virtio_md_pci_plug(hotplug_dev, dev, errp); + } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MD_PCI)) { + virtio_md_pci_plug(VIRTIO_MD_PCI(dev), MACHINE(hotplug_dev), errp); } if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_IOMMU_PCI)) { @@ -2919,8 +2859,9 @@ static void virt_machine_device_unplug_request_cb(HotplugHandler *hotplug_dev, { if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { virt_dimm_unplug_request(hotplug_dev, dev, errp); - } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MEM_PCI)) { - virt_virtio_md_pci_unplug_request(hotplug_dev, dev, errp); + } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MD_PCI)) { + virtio_md_pci_unplug_request(VIRTIO_MD_PCI(dev), MACHINE(hotplug_dev), + errp); } else { error_setg(errp, "device unplug request for unsupported device" " type: %s", object_get_typename(OBJECT(dev))); @@ -2932,6 +2873,8 @@ static void virt_machine_device_unplug_cb(HotplugHandler *hotplug_dev, { if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { virt_dimm_unplug(hotplug_dev, dev, errp); + } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MD_PCI)) { + virtio_md_pci_unplug(VIRTIO_MD_PCI(dev), MACHINE(hotplug_dev), errp); } else { error_setg(errp, "virt: device unplug for unsupported device" " type: %s", object_get_typename(OBJECT(dev))); @@ -2945,7 +2888,7 @@ static HotplugHandler *virt_machine_get_hotplug_handler(MachineState *machine, if (device_is_dynamic_sysbus(mc, dev) || object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM) || - object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MEM_PCI) || + object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MD_PCI) || object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_IOMMU_PCI)) { return HOTPLUG_HANDLER(machine); }