From nobody Mon Nov 25 03:05:33 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=quarantine dis=none) header.from=collabora.com ARC-Seal: i=1; a=rsa-sha256; t=1719093400; cv=none; d=zohomail.com; s=zohoarc; b=PMD1S7MCvBRsQcuS/Xjqvsc6jZZWwvMBYx4Pmi6Ix0aHo9vXM4SlFRjvvAPMQGKU0qjkeQS6+Vqv8tf6Lo2qfTZhpbDmoQazwaI0sUc0dnpAA7l2lkP9/I+StbQBNLhDVUrR3j+YgviAHUSTYTIy+nO3I5pBUiXTt4GlIdkQ2O0= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1719093400; h=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=2yllbGwpd4qZXjjXJ19mr7+x3BCXsJSJF+yY4RB8T58=; b=cPBE0pc7+XRKvh/Nn8dUtIZsrModSIc2287jPuTZVjAvF22ro2NsvjN18XALny657ISd3Rw7wGxNQfwY3IYfzgL3GBUaIMAkGS/SPUiIYnMQa5bu+9NqpnsExuDkjRB/G/tmZMKN4EOP6g+dPL580OegKonmoZq8ShDalmUTSow= 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=quarantine dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 171909340065194.49278895121756; Sat, 22 Jun 2024 14:56:40 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sL8hp-0007Ug-4u; Sat, 22 Jun 2024 17:55:33 -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 1sL8hn-0007U1-7L for qemu-devel@nongnu.org; Sat, 22 Jun 2024 17:55:31 -0400 Received: from madrid.collaboradmins.com ([2a00:1098:ed:100::25]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sL8hl-0001CC-KD for qemu-devel@nongnu.org; Sat, 22 Jun 2024 17:55:30 -0400 Received: from workpc.. (cola.collaboradmins.com [195.201.22.229]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: dmitry.osipenko) by madrid.collaboradmins.com (Postfix) with ESMTPSA id 9DEB33782151; Sat, 22 Jun 2024 21:55:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1719093328; bh=1K/2VgHEPsR0bEtoRNVpLnUq1gaZSsGY5DWQgVCAWXU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LZ2ue0/SVgy+10SdyJ2KbSpEkRs7uaoGsWO2VnF5TPtJ/bnYSTcaUes3lpI8ISW2H K+oXAZgqA42/tc7WrbLxLNW2QfhirReMhyIne/Uz1BlPHu6DrQ0OejqmYODP3rqKNm fIZLunPdvROaNtNmF5I2EgaiILy5ZP3OGPLwkdU0ytBL9h4BHREFPE4Pnuaaumbaud IIKjbzQKzP2wg+6Fa1yPlUWExiNild4fY51dfsoNyJYSd5YfnpU6IMNh9R61N+u5l0 5583PVul5uDh3EGZDQOAzrO/VISjpSRKUG/zQo0o+9Y9eShmtVIghUYA6D2ASqCRmz mvgrchqsHawRg== From: Dmitry Osipenko To: Akihiko Odaki , Huang Rui , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Gerd Hoffmann , "Michael S . Tsirkin" , Stefano Stabellini , Antonio Caggiano , "Dr . David Alan Gilbert" , Robert Beckett , Gert Wollny , =?UTF-8?q?Alex=20Benn=C3=A9e?= Cc: qemu-devel@nongnu.org, Gurchetan Singh , ernunes@redhat.com, Alyssa Ross , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= , Alex Deucher , Stefano Stabellini , =?UTF-8?q?Christian=20K=C3=B6nig?= , Xenia Ragiadakou , Pierre-Eric Pelloux-Prayer , Honglei Huang , Julia Zhang , Chen Jiqian , Yiwei Zhang Subject: [PATCH v15 04/14] virtio-gpu: Handle virtio_gpu_virgl_init() failure Date: Sun, 23 Jun 2024 00:55:01 +0300 Message-ID: <20240622215511.154763-5-dmitry.osipenko@collabora.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240622215511.154763-1-dmitry.osipenko@collabora.com> References: <20240622215511.154763-1-dmitry.osipenko@collabora.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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=2a00:1098:ed:100::25; envelope-from=dmitry.osipenko@collabora.com; helo=madrid.collaboradmins.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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @collabora.com) X-ZM-MESSAGEID: 1719093401236100005 Content-Type: text/plain; charset="utf-8" virtio_gpu_virgl_init() may fail, leading to a further Qemu crash because Qemu assumes it never fails. Check virtio_gpu_virgl_init() return code and don't execute virtio commands on error. Failed virtio_gpu_virgl_init() will result in a timed out virtio commands for a guest OS. Signed-off-by: Dmitry Osipenko --- hw/display/virtio-gpu-gl.c | 30 ++++++++++++++++++++++-------- include/hw/virtio/virtio-gpu.h | 11 +++++++++-- 2 files changed, 31 insertions(+), 10 deletions(-) diff --git a/hw/display/virtio-gpu-gl.c b/hw/display/virtio-gpu-gl.c index e06be60dfbfc..21a1e9a05c5d 100644 --- a/hw/display/virtio-gpu-gl.c +++ b/hw/display/virtio-gpu-gl.c @@ -29,9 +29,14 @@ static void virtio_gpu_gl_update_cursor_data(VirtIOGPU *= g, struct virtio_gpu_scanout *s, uint32_t resource_id) { + VirtIOGPUGL *gl =3D VIRTIO_GPU_GL(g); uint32_t width, height; uint32_t pixels, *data; =20 + if (gl->renderer_state !=3D RS_INITED) { + return; + } + data =3D virgl_renderer_get_cursor_data(resource_id, &width, &height); if (!data) { return; @@ -65,13 +70,22 @@ static void virtio_gpu_gl_handle_ctrl(VirtIODevice *vde= v, VirtQueue *vq) return; } =20 - if (!gl->renderer_inited) { - virtio_gpu_virgl_init(g); - gl->renderer_inited =3D true; - } - if (gl->renderer_reset) { - gl->renderer_reset =3D false; + switch (gl->renderer_state) { + case RS_RESET: virtio_gpu_virgl_reset(g); + /* fallthrough */ + case RS_START: + if (virtio_gpu_virgl_init(g)) { + gl->renderer_state =3D RS_INIT_FAILED; + return; + } + + gl->renderer_state =3D RS_INITED; + break; + case RS_INIT_FAILED: + return; + case RS_INITED: + break; } =20 cmd =3D virtqueue_pop(vq, sizeof(struct virtio_gpu_ctrl_command)); @@ -98,9 +112,9 @@ static void virtio_gpu_gl_reset(VirtIODevice *vdev) * GL functions must be called with the associated GL context in main * thread, and when the renderer is unblocked. */ - if (gl->renderer_inited && !gl->renderer_reset) { + if (gl->renderer_state =3D=3D RS_INITED) { virtio_gpu_virgl_reset_scanout(g); - gl->renderer_reset =3D true; + gl->renderer_state =3D RS_RESET; } } =20 diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h index 7ff989a45a5c..6e71d799e5da 100644 --- a/include/hw/virtio/virtio-gpu.h +++ b/include/hw/virtio/virtio-gpu.h @@ -224,11 +224,18 @@ struct VirtIOGPUClass { Error **errp); }; =20 +/* VirtIOGPUGL renderer states */ +typedef enum { + RS_START, /* starting state */ + RS_INIT_FAILED, /* failed initialisation */ + RS_INITED, /* initialised and working */ + RS_RESET, /* inited and reset pending, moves to start after rese= t */ +} RenderState; + struct VirtIOGPUGL { struct VirtIOGPU parent_obj; =20 - bool renderer_inited; - bool renderer_reset; + RenderState renderer_state; =20 QEMUTimer *fence_poll; QEMUTimer *print_stats; --=20 2.45.2