From patchwork Mon Mar 2 12:15:23 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Stevens X-Patchwork-Id: 210771 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.9 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 45CF2C3F2D2 for ; Mon, 2 Mar 2020 12:15:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1DAB021739 for ; Mon, 2 Mar 2020 12:15:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="kr+5lA7A" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727894AbgCBMPu (ORCPT ); Mon, 2 Mar 2020 07:15:50 -0500 Received: from mail-pg1-f195.google.com ([209.85.215.195]:44649 "EHLO mail-pg1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727409AbgCBMPu (ORCPT ); Mon, 2 Mar 2020 07:15:50 -0500 Received: by mail-pg1-f195.google.com with SMTP id a14so5334005pgb.11 for ; Mon, 02 Mar 2020 04:15:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=0PjKVZqL/5Sq/Vlrjx4wKontU7cZeb+ck8gZ9rnWcpM=; b=kr+5lA7AGDXNd+BvQnHGEUM/YIVpMyxfacyW7nSyKmfmJ396uP5V0PPdFEhY/J/GrT XnFMiPJIw/H18rdDZmI1srW8uWy9sb6BAkU12ExSK5qOTQUGo48VcuLz0dlmky47ozdw H2wdzbTsXbAseGijc2gPEB2RiJ3eoe/IqoUd4= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=0PjKVZqL/5Sq/Vlrjx4wKontU7cZeb+ck8gZ9rnWcpM=; b=gTKLjJOzG9s+vUipfD91LJ7l7Ddfa9t/6HjB7Y0crhRZFGhXEj9l5bILFAE31s0y9U dFZj7CwC9gzCLE2ESBgLyQv8eoj8dYRua9SCeIc99usXpl2yOR2XGsmzH9bPB8l1lS9A aaUjjU7hEtqjt0MPbV4ar6MfZbkiLFrmn0RCTuOB6ajlBbHYk9P14iFtpEvT+4n52phJ d+UV/Eyw0xL05mSk9ip4uu2v3ixb24CqCyR7vSEYYmJF29igNeqfT4LAcdFy9fs8HMJc X8IQK9vFLcgkVy7JiXDb7GD4NSZJY+Lm/iaR+8bLyFOQvMF6m//aL2Vyhwadj0VO2CnT C6WQ== X-Gm-Message-State: ANhLgQ2hBVJR8JFukdojrYF4iVt31tw3kCOjfV999Sn9n1qGp/UbQVEO RkLm0/S8Mz559EJi/dpz/Ag0zA== X-Google-Smtp-Source: ADFU+vv5mcufWUUox/xVUeGl7qutZsD4Ml5QQnKXpnnlbs5XGUy1cyC9WyVCUBNHXvEEfnGjQw1kXQ== X-Received: by 2002:a62:5c2:: with SMTP id 185mr7620057pff.175.1583151349151; Mon, 02 Mar 2020 04:15:49 -0800 (PST) Received: from localhost ([2401:fa00:8f:203:30f2:7a9c:387e:6c7]) by smtp.gmail.com with ESMTPSA id y5sm20788008pfr.169.2020.03.02.04.15.45 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 02 Mar 2020 04:15:48 -0800 (PST) From: David Stevens To: Gerd Hoffmann , David Airlie Cc: Daniel Vetter , "Michael S . Tsirkin" , Jason Wang , Sumit Semwal , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Stevens , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, virtualization@lists.linux-foundation.org, linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org, virtio-dev@lists.oasis-open.org Subject: [PATCH v2 3/4] virtio-gpu: add VIRTIO_GPU_F_RESOURCE_UUID feature Date: Mon, 2 Mar 2020 21:15:23 +0900 Message-Id: <20200302121524.7543-4-stevensd@chromium.org> X-Mailer: git-send-email 2.25.0.265.gbab2e86ba0-goog In-Reply-To: <20200302121524.7543-1-stevensd@chromium.org> References: <20200302121524.7543-1-stevensd@chromium.org> MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org This feature allows the guest to request a UUID from the host for a particular virtio_gpu resource. The UUID can then be shared with other virtio devices, to allow the other host devices to access the virtio_gpu's corresponding host resource. Signed-off-by: David Stevens --- include/uapi/linux/virtio_gpu.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/include/uapi/linux/virtio_gpu.h b/include/uapi/linux/virtio_gpu.h index 0c85914d9369..9721d58b4d58 100644 --- a/include/uapi/linux/virtio_gpu.h +++ b/include/uapi/linux/virtio_gpu.h @@ -50,6 +50,10 @@ * VIRTIO_GPU_CMD_GET_EDID */ #define VIRTIO_GPU_F_EDID 1 +/* + * VIRTIO_GPU_CMD_RESOURCE_ASSIGN_UUID + */ +#define VIRTIO_GPU_F_RESOURCE_UUID 2 enum virtio_gpu_ctrl_type { VIRTIO_GPU_UNDEFINED = 0, @@ -66,6 +70,7 @@ enum virtio_gpu_ctrl_type { VIRTIO_GPU_CMD_GET_CAPSET_INFO, VIRTIO_GPU_CMD_GET_CAPSET, VIRTIO_GPU_CMD_GET_EDID, + VIRTIO_GPU_CMD_RESOURCE_ASSIGN_UUID, /* 3d commands */ VIRTIO_GPU_CMD_CTX_CREATE = 0x0200, @@ -87,6 +92,7 @@ enum virtio_gpu_ctrl_type { VIRTIO_GPU_RESP_OK_CAPSET_INFO, VIRTIO_GPU_RESP_OK_CAPSET, VIRTIO_GPU_RESP_OK_EDID, + VIRTIO_GPU_RESP_OK_RESOURCE_UUID, /* error responses */ VIRTIO_GPU_RESP_ERR_UNSPEC = 0x1200, @@ -340,4 +346,17 @@ enum virtio_gpu_formats { VIRTIO_GPU_FORMAT_R8G8B8X8_UNORM = 134, }; +/* VIRTIO_GPU_CMD_RESOURCE_ASSIGN_UUID */ +struct virtio_gpu_resource_assign_uuid { + struct virtio_gpu_ctrl_hdr hdr; + __le32 resource_id; + __le32 padding; +}; + +/* VIRTIO_GPU_RESP_OK_RESOURCE_UUID */ +struct virtio_gpu_resp_resource_uuid { + struct virtio_gpu_ctrl_hdr hdr; + __u8 uuid[16]; +}; + #endif