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Tsirkin" , peterx@redhat.com, =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PATCH v2 1/2] virtio-gpu: remove needless condition Date: Wed, 28 Feb 2024 16:23:22 +0400 Message-ID: <20240228122323.962826-2-marcandre.lureau@redhat.com> In-Reply-To: <20240228122323.962826-1-marcandre.lureau@redhat.com> References: <20240228122323.962826-1-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=170.10.129.124; envelope-from=marcandre.lureau@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.102, 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_H2=-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: 1709123032245100003 From: Marc-Andr=C3=A9 Lureau qemu_create_displaysurface_pixman() never returns NULL. Signed-off-by: Marc-Andr=C3=A9 Lureau --- hw/display/virtio-gpu.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c index 1c1ee230b3..ccbe31d759 100644 --- a/hw/display/virtio-gpu.c +++ b/hw/display/virtio-gpu.c @@ -684,10 +684,6 @@ static void virtio_gpu_do_set_scanout(VirtIOGPU *g, =20 /* realloc the surface ptr */ scanout->ds =3D qemu_create_displaysurface_pixman(rect); - if (!scanout->ds) { - *error =3D VIRTIO_GPU_RESP_ERR_UNSPEC; - return; - } #ifdef WIN32 qemu_displaysurface_win32_set_handle(scanout->ds, res->handle, fb-= >offset); #endif @@ -1423,9 +1419,6 @@ static int virtio_gpu_post_load(void *opaque, int ver= sion_id) return -EINVAL; } scanout->ds =3D qemu_create_displaysurface_pixman(res->image); - if (!scanout->ds) { - return -EINVAL; - } #ifdef WIN32 qemu_displaysurface_win32_set_handle(scanout->ds, res->handle, 0); #endif --=20 2.43.2 From nobody Tue Nov 26 07:40:03 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1709123042; cv=none; d=zohomail.com; s=zohoarc; b=U3KbZwsGXfp5aTK5tfOEaSMo+/kSMt+ik+Vqo4Wt8oRLbCo8z6aotw09Ix/VbkJY8Jx6CDJXCH4f5UGeuG90fnwe6dfuDwIWgTNWen4lM6heFcJGXGmBDoMEdUSkt7M27Li74ey5ITll0v/p5rNhw71rulZh8pD/ILQTLDAbOyo= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1709123042; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=+sBRzvzSbCgm0ublMDE+ChC477Y3BzXWR1Cb3LCmqKM=; b=YYSNudKgfpPosgngCkXKi5M9cF6EJChMkyZPRqz8wg8kLCFd3oXGQLWsUQXGXTuL4m+9qQFFZN0AYQlsV0UW7SY2NFPyIR5cyvTt92ypbECbAfzgb7aa783Dmb1Qk1PwIwnwzl8ZgzwTDXWwgZTmw1e6zG4WM4kVkLHtpZj14/8= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1709123042414463.7285270037206; Wed, 28 Feb 2024 04:24:02 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rfIyO-0005XR-11; Wed, 28 Feb 2024 07:23:44 -0500 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 1rfIyM-0005X1-G4 for qemu-devel@nongnu.org; Wed, 28 Feb 2024 07:23:42 -0500 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 1rfIyK-00050n-M5 for qemu-devel@nongnu.org; Wed, 28 Feb 2024 07:23:42 -0500 Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-318-EwEvlbjsN-avqIwI4mqjgA-1; Wed, 28 Feb 2024 07:23:38 -0500 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id F3E9F282D3C6 for ; Wed, 28 Feb 2024 12:23:37 +0000 (UTC) Received: from localhost (unknown [10.39.208.45]) by smtp.corp.redhat.com (Postfix) with ESMTP id 7F8A72026D0A; Wed, 28 Feb 2024 12:23:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1709123019; 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=+sBRzvzSbCgm0ublMDE+ChC477Y3BzXWR1Cb3LCmqKM=; b=gcYkzaSskPKth7FXI2eAyGtm2oM6jMgN2NHYTUr+klIq1gyHsncVhQZWQ9sPwklbiBK+We HENZiZ499zCENm084vtuqqG4H0GqWiG1X2j8wU+e/pQVbTEnlRBAM+MmETUkNr5uTd8zFo F9NJ4uVTpWOWqo5tzO2mP5+K/r5/BEE= X-MC-Unique: EwEvlbjsN-avqIwI4mqjgA-1 From: marcandre.lureau@redhat.com To: qemu-devel@nongnu.org Cc: Gerd Hoffmann , sebott@redhat.com, "Michael S. Tsirkin" , peterx@redhat.com, =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PATCH v2 2/2] virtio-gpu: fix scanout migration post-load Date: Wed, 28 Feb 2024 16:23:23 +0400 Message-ID: <20240228122323.962826-3-marcandre.lureau@redhat.com> In-Reply-To: <20240228122323.962826-1-marcandre.lureau@redhat.com> References: <20240228122323.962826-1-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 10.11.54.4 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: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.102, 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, 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: 1709123044349100003 From: Marc-Andr=C3=A9 Lureau The current post-loading code for scanout has a FIXME: it doesn't take the resource region/rect into account. But there is more, when adding blob migration support in commit f66767f75c9, I didn't realize that blob resources could be used for scanouts. This situationn leads to a crash during post-load, as they don't have an associated res->image. virtio_gpu_do_set_scanout() handle all cases, but requires the associated virtio_gpu_framebuffer, which is currently not saved during migration. Add a v2 of "virtio-gpu-one-scanout" with the framebuffer fields, so we can restore blob scanouts, as well as fixing the existing FIXME. Signed-off-by: Marc-Andr=C3=A9 Lureau Reviewed-by: Sebastian Ott --- include/hw/virtio/virtio-gpu.h | 1 + hw/display/virtio-gpu.c | 51 +++++++++++++++++++++++++++------- 2 files changed, 42 insertions(+), 10 deletions(-) diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h index b28e7ef0d2..ed44cdad6b 100644 --- a/include/hw/virtio/virtio-gpu.h +++ b/include/hw/virtio/virtio-gpu.h @@ -81,6 +81,7 @@ struct virtio_gpu_scanout { uint32_t resource_id; struct virtio_gpu_update_cursor cursor; QEMUCursor *current_cursor; + struct virtio_gpu_framebuffer fb; }; =20 struct virtio_gpu_requested_state { diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c index ccbe31d759..78d5a4f164 100644 --- a/hw/display/virtio-gpu.c +++ b/hw/display/virtio-gpu.c @@ -600,6 +600,7 @@ static void virtio_unref_resource(pixman_image_t *image= , void *data) static void virtio_gpu_update_scanout(VirtIOGPU *g, uint32_t scanout_id, struct virtio_gpu_simple_resource *r= es, + struct virtio_gpu_framebuffer *fb, struct virtio_gpu_rect *r) { struct virtio_gpu_simple_resource *ores; @@ -617,9 +618,10 @@ static void virtio_gpu_update_scanout(VirtIOGPU *g, scanout->y =3D r->y; scanout->width =3D r->width; scanout->height =3D r->height; + scanout->fb =3D *fb; } =20 -static void virtio_gpu_do_set_scanout(VirtIOGPU *g, +static bool virtio_gpu_do_set_scanout(VirtIOGPU *g, uint32_t scanout_id, struct virtio_gpu_framebuffer *fb, struct virtio_gpu_simple_resource *r= es, @@ -645,7 +647,7 @@ static void virtio_gpu_do_set_scanout(VirtIOGPU *g, r->x, r->y, r->width, r->height, fb->width, fb->height); *error =3D VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER; - return; + return false; } =20 g->parent_obj.enable =3D 1; @@ -653,11 +655,12 @@ static void virtio_gpu_do_set_scanout(VirtIOGPU *g, if (res->blob) { if (console_has_gl(scanout->con)) { if (!virtio_gpu_update_dmabuf(g, scanout_id, res, fb, r)) { - virtio_gpu_update_scanout(g, scanout_id, res, r); + virtio_gpu_update_scanout(g, scanout_id, res, fb, r); } else { *error =3D VIRTIO_GPU_RESP_ERR_OUT_OF_MEMORY; + return false; } - return; + return true; } =20 data =3D res->blob; @@ -693,7 +696,8 @@ static void virtio_gpu_do_set_scanout(VirtIOGPU *g, scanout->ds); } =20 - virtio_gpu_update_scanout(g, scanout_id, res, r); + virtio_gpu_update_scanout(g, scanout_id, res, fb, r); + return true; } =20 static void virtio_gpu_set_scanout(VirtIOGPU *g, @@ -1164,7 +1168,8 @@ static void virtio_gpu_cursor_bh(void *opaque) =20 static const VMStateDescription vmstate_virtio_gpu_scanout =3D { .name =3D "virtio-gpu-one-scanout", - .version_id =3D 1, + .version_id =3D 2, + .minimum_version_id =3D 1, .fields =3D (const VMStateField[]) { VMSTATE_UINT32(resource_id, struct virtio_gpu_scanout), VMSTATE_UINT32(width, struct virtio_gpu_scanout), @@ -1176,6 +1181,12 @@ static const VMStateDescription vmstate_virtio_gpu_s= canout =3D { VMSTATE_UINT32(cursor.hot_y, struct virtio_gpu_scanout), VMSTATE_UINT32(cursor.pos.x, struct virtio_gpu_scanout), VMSTATE_UINT32(cursor.pos.y, struct virtio_gpu_scanout), + VMSTATE_UINT32_V(fb.format, struct virtio_gpu_scanout, 2), + VMSTATE_UINT32_V(fb.bytes_pp, struct virtio_gpu_scanout, 2), + VMSTATE_UINT32_V(fb.width, struct virtio_gpu_scanout, 2), + VMSTATE_UINT32_V(fb.height, struct virtio_gpu_scanout, 2), + VMSTATE_UINT32_V(fb.stride, struct virtio_gpu_scanout, 2), + VMSTATE_UINT32_V(fb.offset, struct virtio_gpu_scanout, 2), VMSTATE_END_OF_LIST() }, }; @@ -1347,6 +1358,7 @@ static int virtio_gpu_blob_save(QEMUFile *f, void *op= aque, size_t size, if (!res->blob_size) { continue; } + assert(!res->image); qemu_put_be32(f, res->resource_id); qemu_put_be32(f, res->blob_size); qemu_put_be32(f, res->iov_cnt); @@ -1409,21 +1421,40 @@ static int virtio_gpu_post_load(void *opaque, int v= ersion_id) int i; =20 for (i =3D 0; i < g->parent_obj.conf.max_outputs; i++) { - /* FIXME: should take scanout.r.{x,y} into account */ scanout =3D &g->parent_obj.scanout[i]; if (!scanout->resource_id) { continue; } + res =3D virtio_gpu_find_resource(g, scanout->resource_id); if (!res) { return -EINVAL; } - scanout->ds =3D qemu_create_displaysurface_pixman(res->image); + + if (scanout->fb.format !=3D 0) { + uint32_t error =3D 0; + struct virtio_gpu_rect r =3D { + .x =3D scanout->x, + .y =3D scanout->y, + .width =3D scanout->width, + .height =3D scanout->height + }; + + if (!virtio_gpu_do_set_scanout(g, i, &scanout->fb, res, &r, &e= rror)) { + return -EINVAL; + } + } else { + /* legacy v1 migration support */ + if (!res->image) { + return -EINVAL; + } + scanout->ds =3D qemu_create_displaysurface_pixman(res->image); #ifdef WIN32 - qemu_displaysurface_win32_set_handle(scanout->ds, res->handle, 0); + qemu_displaysurface_win32_set_handle(scanout->ds, res->handle,= 0); #endif + dpy_gfx_replace_surface(scanout->con, scanout->ds); + } =20 - dpy_gfx_replace_surface(scanout->con, scanout->ds); dpy_gfx_update_full(scanout->con); if (scanout->cursor.resource_id) { update_cursor(g, &scanout->cursor); --=20 2.43.2