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Tsirkin" Subject: [PULL 06/10] virtio-gpu: block migration of VMs with blob=true Date: Mon, 6 Nov 2023 17:32:15 +0400 Message-ID: <20231106133219.2173660-7-marcandre.lureau@redhat.com> In-Reply-To: <20231106133219.2173660-1-marcandre.lureau@redhat.com> References: <20231106133219.2173660-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.6 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; 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, T_SCC_BODY_TEXT_LINE=-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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1699277677461100005 From: Marc-Andr=C3=A9 Lureau "blob" resources don't have an associated pixman image: #0 pixman_image_get_stride (image=3D0x0) at ../pixman/pixman-image.c:921 #1 0x0000562327c25236 in virtio_gpu_save (f=3D0x56232bb13b00, opaque=3D0x5= 6232b555a60, size=3D0, field=3D0x5623289ab6c8 <__compound_literal.3+104>, v= mdesc=3D0x56232ab59fe0) at ../hw/display/virtio-gpu.c:1225 Related to: https://bugzilla.redhat.com/show_bug.cgi?id=3D2236353 Signed-off-by: Marc-Andr=C3=A9 Lureau Acked-by: Peter Xu --- 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 4265316cbb..dd9965c2ef 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" @@ -40,6 +41,8 @@ virtio_gpu_find_check_resource(VirtIOGPU *g, uint32_t res= ource_id, =20 static void virtio_gpu_reset_bh(void *opaque); =20 +static Error *blob_mig_blocker; + void virtio_gpu_update_cursor_data(VirtIOGPU *g, struct virtio_gpu_scanout *s, uint32_t resource_id) @@ -1373,6 +1376,14 @@ void virtio_gpu_device_realize(DeviceState *qdev, Er= ror **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; + } } =20 if (!virtio_gpu_base_device_realize(qdev, @@ -1399,6 +1410,9 @@ static void virtio_gpu_device_unrealize(DeviceState *= qdev) { VirtIOGPU *g =3D VIRTIO_GPU(qdev); =20 + 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); --=20 2.41.0