From patchwork Thu Sep 7 13:09:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Marc-Andr=C3=A9_Lureau?= X-Patchwork-Id: 1830906 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=aAQ//KjJ; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4RhKQN5ksKz1yh8 for ; Thu, 7 Sep 2023 23:11:56 +1000 (AEST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qeElh-0002j7-55; Thu, 07 Sep 2023 09:09:57 -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 1qeEle-0002Hz-TL for qemu-devel@nongnu.org; Thu, 07 Sep 2023 09:09:54 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qeElY-0001wp-2j for qemu-devel@nongnu.org; Thu, 07 Sep 2023 09:09:53 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1694092186; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=5WQbyEMLbxN6n9Kmk+rdiZnzh6a00nnw+SDImXP96eM=; b=aAQ//KjJ6v2dO6vwYMf6UV9E0EWjoSGLdr3pDTVm3e67C4ECnaTqe459YUFEn4mK6sy5uL SaOakcfl/MWucm9MVhKT94LEfmSfHAmMjRsWoxIw8PGuGxCOJf5wb3eTpt/btlNmTagOLB TGEoKYbAZG1pX42uZWaeeLQGXXHlSTE= Received: from mimecast-mx02.redhat.com (mx-ext.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-541-P63GlNnZOm2mIMe1-1hnng-1; Thu, 07 Sep 2023 09:09:44 -0400 X-MC-Unique: P63GlNnZOm2mIMe1-1hnng-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.rdu2.redhat.com [10.11.54.8]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 55D471C18C63 for ; Thu, 7 Sep 2023 13:09:44 +0000 (UTC) Received: from localhost (unknown [10.39.208.43]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6D583C03293; Thu, 7 Sep 2023 13:09:43 +0000 (UTC) From: marcandre.lureau@redhat.com To: qemu-devel@nongnu.org Cc: "Michael S. Tsirkin" , kraxel@redhat.com, =?utf-8?q?Marc?= =?utf-8?q?-Andr=C3=A9_Lureau?= Subject: [PATCH v2 1/5] virtio-gpu: block migration of VMs with blob=true Date: Thu, 7 Sep 2023 17:09:32 +0400 Message-ID: <20230907130936.767722-2-marcandre.lureau@redhat.com> In-Reply-To: <20230907130936.767722-1-marcandre.lureau@redhat.com> References: <20230907130936.767722-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.8 Received-SPF: pass client-ip=170.10.129.124; envelope-from=marcandre.lureau@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_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Marc-André Lureau "blob" resources don't have an associated pixman image: #0 pixman_image_get_stride (image=0x0) at ../pixman/pixman-image.c:921 #1 0x0000562327c25236 in virtio_gpu_save (f=0x56232bb13b00, opaque=0x56232b555a60, size=0, field=0x5623289ab6c8 <__compound_literal.3+104>, vmdesc=0x56232ab59fe0) at ../hw/display/virtio-gpu.c:1225 Related to: https://bugzilla.redhat.com/show_bug.cgi?id=2236353 Signed-off-by: Marc-André Lureau --- hw/display/virtio-gpu.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c index bbd5c6561a..d6909bfa97 100644 --- a/hw/display/virtio-gpu.c +++ b/hw/display/virtio-gpu.c @@ -26,6 +26,7 @@ #include "hw/virtio/virtio-gpu-pixman.h" #include "hw/virtio/virtio-bus.h" #include "hw/qdev-properties.h" +#include "migration/blocker.h" #include "qemu/log.h" #include "qemu/module.h" #include "qapi/error.h" @@ -44,6 +45,8 @@ static void virtio_gpu_cleanup_mapping(VirtIOGPU *g, struct virtio_gpu_simple_resource *res); static void virtio_gpu_reset_bh(void *opaque); +static Error *blob_mig_blocker; + void virtio_gpu_update_cursor_data(VirtIOGPU *g, struct virtio_gpu_scanout *s, uint32_t resource_id) @@ -1374,6 +1377,14 @@ void virtio_gpu_device_realize(DeviceState *qdev, Error **errp) error_setg(errp, "blobs and virgl are not compatible (yet)"); return; } + + if (!blob_mig_blocker) { + error_setg(&blob_mig_blocker, + "virtio-gpu blob VMs are currently not migratable."); + } + if (migrate_add_blocker(blob_mig_blocker, errp)) { + return; + } } if (!virtio_gpu_base_device_realize(qdev, @@ -1400,6 +1411,9 @@ static void virtio_gpu_device_unrealize(DeviceState *qdev) { VirtIOGPU *g = VIRTIO_GPU(qdev); + if (virtio_gpu_blob_enabled(g->parent_obj.conf)) { + migrate_del_blocker(blob_mig_blocker); + } g_clear_pointer(&g->ctrl_bh, qemu_bh_delete); g_clear_pointer(&g->cursor_bh, qemu_bh_delete); g_clear_pointer(&g->reset_bh, qemu_bh_delete); From patchwork Thu Sep 7 13:09:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Marc-Andr=C3=A9_Lureau?= X-Patchwork-Id: 1830916 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; 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Thu, 07 Sep 2023 09:09:48 -0400 X-MC-Unique: JfOTYpcWO1GTOBd0V6bukQ-1 Received: from smtp.corp.redhat.com (int-mx10.intmail.prod.int.rdu2.redhat.com [10.11.54.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id F0861917840 for ; Thu, 7 Sep 2023 13:09:47 +0000 (UTC) Received: from localhost (unknown [10.39.208.43]) by smtp.corp.redhat.com (Postfix) with ESMTP id 0513C400F5F; Thu, 7 Sep 2023 13:09:46 +0000 (UTC) From: marcandre.lureau@redhat.com To: qemu-devel@nongnu.org Cc: "Michael S. Tsirkin" , kraxel@redhat.com, =?utf-8?q?Marc?= =?utf-8?q?-Andr=C3=A9_Lureau?= Subject: [PATCH v2 2/5] virtio-gpu: factor out restore mapping Date: Thu, 7 Sep 2023 17:09:33 +0400 Message-ID: <20230907130936.767722-3-marcandre.lureau@redhat.com> In-Reply-To: <20230907130936.767722-1-marcandre.lureau@redhat.com> References: <20230907130936.767722-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.10 Received-SPF: pass client-ip=170.10.133.124; envelope-from=marcandre.lureau@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_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, T_SPF_TEMPERROR=0.01 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Marc-André Lureau The same function is going to be used next to restore "blob" resources. Signed-off-by: Marc-André Lureau --- hw/display/virtio-gpu.c | 60 ++++++++++++++++++++++------------------- 1 file changed, 33 insertions(+), 27 deletions(-) diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c index d6909bfa97..a58cb68f1c 100644 --- a/hw/display/virtio-gpu.c +++ b/hw/display/virtio-gpu.c @@ -1237,6 +1237,35 @@ static int virtio_gpu_save(QEMUFile *f, void *opaque, size_t size, return vmstate_save_state(f, &vmstate_virtio_gpu_scanouts, g, NULL); } +static bool virtio_gpu_load_restore_mapping(VirtIOGPU *g, + struct virtio_gpu_simple_resource *res) +{ + int i; + + for (i = 0; i < res->iov_cnt; i++) { + hwaddr len = res->iov[i].iov_len; + res->iov[i].iov_base = + dma_memory_map(VIRTIO_DEVICE(g)->dma_as, res->addrs[i], &len, + DMA_DIRECTION_TO_DEVICE, MEMTXATTRS_UNSPECIFIED); + + if (!res->iov[i].iov_base || len != res->iov[i].iov_len) { + /* Clean up the half-a-mapping we just created... */ + if (res->iov[i].iov_base) { + dma_memory_unmap(VIRTIO_DEVICE(g)->dma_as, res->iov[i].iov_base, + len, DMA_DIRECTION_TO_DEVICE, 0); + } + /* ...and the mappings for previous loop iterations */ + res->iov_cnt = i; + virtio_gpu_cleanup_mapping(g, res); + return false; + } + } + + QTAILQ_INSERT_HEAD(&g->reslist, res, next); + g->hostmem += res->hostmem; + return true; +} + static int virtio_gpu_load(QEMUFile *f, void *opaque, size_t size, const VMStateField *field) { @@ -1299,35 +1328,12 @@ static int virtio_gpu_load(QEMUFile *f, void *opaque, size_t size, qemu_get_buffer(f, (void *)pixman_image_get_data(res->image), pixman_image_get_stride(res->image) * res->height); - /* restore mapping */ - for (i = 0; i < res->iov_cnt; i++) { - hwaddr len = res->iov[i].iov_len; - res->iov[i].iov_base = - dma_memory_map(VIRTIO_DEVICE(g)->dma_as, res->addrs[i], &len, - DMA_DIRECTION_TO_DEVICE, - MEMTXATTRS_UNSPECIFIED); - - if (!res->iov[i].iov_base || len != res->iov[i].iov_len) { - /* Clean up the half-a-mapping we just created... */ - if (res->iov[i].iov_base) { - dma_memory_unmap(VIRTIO_DEVICE(g)->dma_as, - res->iov[i].iov_base, - len, - DMA_DIRECTION_TO_DEVICE, - 0); - } - /* ...and the mappings for previous loop iterations */ - res->iov_cnt = i; - virtio_gpu_cleanup_mapping(g, res); - pixman_image_unref(res->image); - g_free(res); - return -EINVAL; - } + if (!virtio_gpu_load_restore_mapping(g, res)) { + pixman_image_unref(res->image); + g_free(res); + return -EINVAL; } - QTAILQ_INSERT_HEAD(&g->reslist, res, next); - g->hostmem += res->hostmem; - resource_id = qemu_get_be32(f); } From patchwork Thu Sep 7 13:09:34 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Marc-Andr=C3=A9_Lureau?= X-Patchwork-Id: 1830913 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=PjTZqtSR; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; 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Tsirkin" , kraxel@redhat.com, =?utf-8?q?Marc?= =?utf-8?q?-Andr=C3=A9_Lureau?= Subject: [PATCH v2 3/5] virtio-gpu: move scanout restoration to post_load Date: Thu, 7 Sep 2023 17:09:34 +0400 Message-ID: <20230907130936.767722-4-marcandre.lureau@redhat.com> In-Reply-To: <20230907130936.767722-1-marcandre.lureau@redhat.com> References: <20230907130936.767722-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.7 Received-SPF: pass client-ip=170.10.129.124; envelope-from=marcandre.lureau@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_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Marc-André Lureau As we are going to introduce an extra subsection for "blob" resources, scanout have to be restored after. Signed-off-by: Marc-André Lureau --- hw/display/virtio-gpu.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c index a58cb68f1c..6ebf98ca0e 100644 --- a/hw/display/virtio-gpu.c +++ b/hw/display/virtio-gpu.c @@ -1271,7 +1271,6 @@ static int virtio_gpu_load(QEMUFile *f, void *opaque, size_t size, { VirtIOGPU *g = opaque; struct virtio_gpu_simple_resource *res; - struct virtio_gpu_scanout *scanout; uint32_t resource_id, pformat; void *bits = NULL; int i; @@ -1339,6 +1338,17 @@ static int virtio_gpu_load(QEMUFile *f, void *opaque, size_t size, /* load & apply scanout state */ vmstate_load_state(f, &vmstate_virtio_gpu_scanouts, g, 1); + + return 0; +} + +static int virtio_gpu_post_load(void *opaque, int version_id) +{ + VirtIOGPU *g = opaque; + struct virtio_gpu_scanout *scanout; + struct virtio_gpu_simple_resource *res; + int i; + for (i = 0; i < g->parent_obj.conf.max_outputs; i++) { /* FIXME: should take scanout.r.{x,y} into account */ scanout = &g->parent_obj.scanout[i]; @@ -1521,6 +1531,7 @@ static const VMStateDescription vmstate_virtio_gpu = { } /* device */, VMSTATE_END_OF_LIST() }, + .post_load = virtio_gpu_post_load, }; static Property virtio_gpu_properties[] = { From patchwork Thu Sep 7 13:09:35 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Marc-Andr=C3=A9_Lureau?= X-Patchwork-Id: 1830909 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=R5DewrXE; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4RhKQt1hMbz1yh1 for ; Thu, 7 Sep 2023 23:12:22 +1000 (AEST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qeElp-0003q5-Ee; Thu, 07 Sep 2023 09:10:05 -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 1qeElm-0003SH-8B for qemu-devel@nongnu.org; Thu, 07 Sep 2023 09:10:02 -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 1qeElj-00020j-In for qemu-devel@nongnu.org; Thu, 07 Sep 2023 09:10:01 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1694092198; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=LqK2fRIngQ6fqg+YrqPlUvCP7W1pFGTqWK+VI0AV204=; b=R5DewrXEAUorykhSlf7w+GdRKscYgH3UYZ86b4HLnZBpA9SsAnK1k3NxJ+WLxz1tKAqsbs r5cnGYS7/bo3/5CBopYiTW4cpDwugq1eDGSo5lAQZHlUpf1jur3n343WQW2CfxyvjSwdrn nK7/QDBBpB0BfSjBo0fauAAc4lqguK8= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-94-aJIQqyuQOrikfOsEnU5Tsg-1; Thu, 07 Sep 2023 09:09:57 -0400 X-MC-Unique: aJIQqyuQOrikfOsEnU5Tsg-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id D70FD9565C2 for ; Thu, 7 Sep 2023 13:09:56 +0000 (UTC) Received: from localhost (unknown [10.39.208.43]) by smtp.corp.redhat.com (Postfix) with ESMTP id D1BD17B62; Thu, 7 Sep 2023 13:09:55 +0000 (UTC) From: marcandre.lureau@redhat.com To: qemu-devel@nongnu.org Cc: "Michael S. Tsirkin" , kraxel@redhat.com, =?utf-8?q?Marc?= =?utf-8?q?-Andr=C3=A9_Lureau?= Subject: [PATCH v2 4/5] virtio-gpu: add virtio-gpu/blob vmstate subsection Date: Thu, 7 Sep 2023 17:09:35 +0400 Message-ID: <20230907130936.767722-5-marcandre.lureau@redhat.com> In-Reply-To: <20230907130936.767722-1-marcandre.lureau@redhat.com> References: <20230907130936.767722-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.5 Received-SPF: pass client-ip=170.10.133.124; envelope-from=marcandre.lureau@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_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Marc-André Lureau Signed-off-by: Marc-André Lureau --- hw/display/virtio-gpu.c | 101 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 101 insertions(+) diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c index 6ebf98ca0e..63e60745f8 100644 --- a/hw/display/virtio-gpu.c +++ b/hw/display/virtio-gpu.c @@ -1220,6 +1220,9 @@ static int virtio_gpu_save(QEMUFile *f, void *opaque, size_t size, assert(QTAILQ_EMPTY(&g->cmdq)); QTAILQ_FOREACH(res, &g->reslist, next) { + if (res->blob_size) { + continue; + } qemu_put_be32(f, res->resource_id); qemu_put_be32(f, res->width); qemu_put_be32(f, res->height); @@ -1342,6 +1345,74 @@ static int virtio_gpu_load(QEMUFile *f, void *opaque, size_t size, return 0; } +static int virtio_gpu_blob_save(QEMUFile *f, void *opaque, size_t size, + const VMStateField *field, JSONWriter *vmdesc) +{ + VirtIOGPU *g = opaque; + struct virtio_gpu_simple_resource *res; + int i; + + /* in 2d mode we should never find unprocessed commands here */ + assert(QTAILQ_EMPTY(&g->cmdq)); + + QTAILQ_FOREACH(res, &g->reslist, next) { + if (!res->blob_size) { + continue; + } + qemu_put_be32(f, res->resource_id); + qemu_put_be32(f, res->blob_size); + qemu_put_be32(f, res->iov_cnt); + for (i = 0; i < res->iov_cnt; i++) { + qemu_put_be64(f, res->addrs[i]); + qemu_put_be32(f, res->iov[i].iov_len); + } + } + qemu_put_be32(f, 0); /* end of list */ + + return 0; +} + +static int virtio_gpu_blob_load(QEMUFile *f, void *opaque, size_t size, + const VMStateField *field) +{ + VirtIOGPU *g = opaque; + struct virtio_gpu_simple_resource *res; + uint32_t resource_id; + int i; + + resource_id = qemu_get_be32(f); + while (resource_id != 0) { + res = virtio_gpu_find_resource(g, resource_id); + if (res) { + return -EINVAL; + } + + res = g_new0(struct virtio_gpu_simple_resource, 1); + res->resource_id = resource_id; + res->blob_size = qemu_get_be32(f); + res->iov_cnt = qemu_get_be32(f); + res->addrs = g_new(uint64_t, res->iov_cnt); + res->iov = g_new(struct iovec, res->iov_cnt); + + /* read data */ + for (i = 0; i < res->iov_cnt; i++) { + res->addrs[i] = qemu_get_be64(f); + res->iov[i].iov_len = qemu_get_be32(f); + } + + if (!virtio_gpu_load_restore_mapping(g, res)) { + g_free(res); + return -EINVAL; + } + + virtio_gpu_init_udmabuf(res); + + resource_id = qemu_get_be32(f); + } + + return 0; +} + static int virtio_gpu_post_load(void *opaque, int version_id) { VirtIOGPU *g = opaque; @@ -1506,6 +1577,32 @@ virtio_gpu_set_config(VirtIODevice *vdev, const uint8_t *config) } } +static bool virtio_gpu_blob_state_needed(void *opaque) +{ + VirtIOGPU *g = VIRTIO_GPU(opaque); + + return virtio_gpu_blob_enabled(g->parent_obj.conf); +} + +const VMStateDescription vmstate_virtio_gpu_blob_state = { + .name = "virtio-gpu/blob", + .minimum_version_id = VIRTIO_GPU_VM_VERSION, + .version_id = VIRTIO_GPU_VM_VERSION, + .needed = virtio_gpu_blob_state_needed, + .fields = (VMStateField[]){ + { + .name = "virtio-gpu/blob", + .info = &(const VMStateInfo) { + .name = "blob", + .get = virtio_gpu_blob_load, + .put = virtio_gpu_blob_save, + }, + .flags = VMS_SINGLE, + } /* device */, + VMSTATE_END_OF_LIST() + }, +}; + /* * For historical reasons virtio_gpu does not adhere to virtio migration * scheme as described in doc/virtio-migration.txt, in a sense that no @@ -1531,6 +1628,10 @@ static const VMStateDescription vmstate_virtio_gpu = { } /* device */, VMSTATE_END_OF_LIST() }, + .subsections = (const VMStateDescription*[]) { + &vmstate_virtio_gpu_blob_state, + NULL + }, .post_load = virtio_gpu_post_load, }; From patchwork Thu Sep 7 13:09:36 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Marc-Andr=C3=A9_Lureau?= X-Patchwork-Id: 1830911 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; 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Thu, 07 Sep 2023 09:10:01 -0400 X-MC-Unique: gpOvbqoBOVywR1jJX_M8PA-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 358F71C18C62 for ; Thu, 7 Sep 2023 13:10:01 +0000 (UTC) Received: from localhost (unknown [10.39.208.43]) by smtp.corp.redhat.com (Postfix) with ESMTP id 5D7F1200BC49; Thu, 7 Sep 2023 13:09:59 +0000 (UTC) From: marcandre.lureau@redhat.com To: qemu-devel@nongnu.org Cc: "Michael S. Tsirkin" , kraxel@redhat.com, =?utf-8?q?Marc?= =?utf-8?q?-Andr=C3=A9_Lureau?= Subject: [PATCH v2 5/5] Revert "virtio-gpu: block migration of VMs with blob=true" Date: Thu, 7 Sep 2023 17:09:36 +0400 Message-ID: <20230907130936.767722-6-marcandre.lureau@redhat.com> In-Reply-To: <20230907130936.767722-1-marcandre.lureau@redhat.com> References: <20230907130936.767722-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.6 Received-SPF: pass client-ip=170.10.129.124; envelope-from=marcandre.lureau@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_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Marc-André Lureau If we decide to apply this patch (for easier backporting reasons), we can now revert it. Signed-off-by: Marc-André Lureau --- hw/display/virtio-gpu.c | 14 -------------- 1 file changed, 14 deletions(-) diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c index 63e60745f8..206b759a9c 100644 --- a/hw/display/virtio-gpu.c +++ b/hw/display/virtio-gpu.c @@ -26,7 +26,6 @@ #include "hw/virtio/virtio-gpu-pixman.h" #include "hw/virtio/virtio-bus.h" #include "hw/qdev-properties.h" -#include "migration/blocker.h" #include "qemu/log.h" #include "qemu/module.h" #include "qapi/error.h" @@ -45,8 +44,6 @@ static void virtio_gpu_cleanup_mapping(VirtIOGPU *g, struct virtio_gpu_simple_resource *res); static void virtio_gpu_reset_bh(void *opaque); -static Error *blob_mig_blocker; - void virtio_gpu_update_cursor_data(VirtIOGPU *g, struct virtio_gpu_scanout *s, uint32_t resource_id) @@ -1464,14 +1461,6 @@ void virtio_gpu_device_realize(DeviceState *qdev, Error **errp) error_setg(errp, "blobs and virgl are not compatible (yet)"); return; } - - if (!blob_mig_blocker) { - error_setg(&blob_mig_blocker, - "virtio-gpu blob VMs are currently not migratable."); - } - if (migrate_add_blocker(blob_mig_blocker, errp)) { - return; - } } if (!virtio_gpu_base_device_realize(qdev, @@ -1498,9 +1487,6 @@ static void virtio_gpu_device_unrealize(DeviceState *qdev) { VirtIOGPU *g = VIRTIO_GPU(qdev); - if (virtio_gpu_blob_enabled(g->parent_obj.conf)) { - migrate_del_blocker(blob_mig_blocker); - } g_clear_pointer(&g->ctrl_bh, qemu_bh_delete); g_clear_pointer(&g->cursor_bh, qemu_bh_delete); g_clear_pointer(&g->reset_bh, qemu_bh_delete);