From patchwork Tue Jun 9 01:25:17 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Stevens X-Patchwork-Id: 209560 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=-9.8 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, URIBL_BLOCKED, 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 06D7DC433DF for ; Tue, 9 Jun 2020 01:26:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D2AF2207FB for ; Tue, 9 Jun 2020 01:26:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="Cclz/uvT" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727923AbgFIB0H (ORCPT ); Mon, 8 Jun 2020 21:26:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58978 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726907AbgFIB0F (ORCPT ); Mon, 8 Jun 2020 21:26:05 -0400 Received: from mail-pg1-x542.google.com (mail-pg1-x542.google.com [IPv6:2607:f8b0:4864:20::542]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 79C61C03E97C for ; Mon, 8 Jun 2020 18:26:05 -0700 (PDT) Received: by mail-pg1-x542.google.com with SMTP id r18so3290535pgk.11 for ; Mon, 08 Jun 2020 18:26:05 -0700 (PDT) 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=0JcU5U23cBSwvRc+LtHthzK2bgv5UkiuTgYVD/tH+hs=; b=Cclz/uvTZow4B0U1qRKpIfedIS/qqqFD/W97f4FWTTgUSIgv5MGyWTfjOvzKfgeLOS XucPlkUB5NvC6iuas7lwY8RoBFAaZwTSekkX5ONXimlVNrv/IdRe4I+ZIXYigrvhnBa1 4eV20PnF8eKBbiOw07YVzba/YTQJnkyoClYnk= 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=0JcU5U23cBSwvRc+LtHthzK2bgv5UkiuTgYVD/tH+hs=; b=cGO4cfsBZTMxF/5/alCVtO2+KdeSfNFrAmxfvevhASzYE3gjE10T8IIMZ9x/9WKG2E a6+0ALDqIiPGcxOAAuKJdriPTZnCdJC9p/pLP0Fy4Fw73CzM2MoKmbN/LTeUS3tExOhp RyKZz/Sd8/mCgGuUL+rrRX8RK5havrLAiUZCaL1SLBWl/O/xQhpBOe3sNR2yWEoPXAyj Wb13GwJEd3yJ5PU7qFSO4ctdzjeihxFVTSXiqFUMQSGpf34qGhvoD6JOHupQUkF2ufeO Spe1CsrhIE36kcUDsXPHRBLkhsRfAfCULDxepyd4ta6Ss5SNRJQK30fqK2xE5z2yaKcn Yt3A== X-Gm-Message-State: AOAM533n+O+8d0INY+2RzG4BYRZe5IjPIUvK1j6pfyGEA14Cqy8AfGZb m4y6i/3yosWoTG5he++H0yH5sQ== X-Google-Smtp-Source: ABdhPJxDYHDpKVwmHopOckTvIsUrO91C7ORl9ZYyWvYZJF7nmNr+1OKYYDjRxDMq6z9pHOquVX5rcw== X-Received: by 2002:a62:2ccb:: with SMTP id s194mr17897487pfs.127.1591665965055; Mon, 08 Jun 2020 18:26:05 -0700 (PDT) Received: from localhost ([2401:fa00:8f:203:30f2:7a9c:387e:6c7]) by smtp.gmail.com with ESMTPSA id w65sm8051336pfb.160.2020.06.08.18.26.01 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 08 Jun 2020 18:26:04 -0700 (PDT) From: David Stevens To: Gerd Hoffmann , David Airlie , Daniel Vetter , Sumit Semwal , "Michael S . Tsirkin" Cc: Jason Wang , 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 v5 2/3] virtio-gpu: add VIRTIO_GPU_F_RESOURCE_UUID feature Date: Tue, 9 Jun 2020 10:25:17 +0900 Message-Id: <20200609012518.198908-3-stevensd@chromium.org> X-Mailer: git-send-email 2.27.0.278.ge193c7cf3a9-goog In-Reply-To: <20200609012518.198908-1-stevensd@chromium.org> References: <20200609012518.198908-1-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