From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.0 required=3.0 tests=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 9BFFAC07542 for ; Mon, 27 May 2019 08:48:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 76CA32173B for ; Mon, 27 May 2019 08:48:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726562AbfE0Isq (ORCPT ); Mon, 27 May 2019 04:48:46 -0400 Received: from mga03.intel.com ([134.134.136.65]:65534 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725908AbfE0Isq (ORCPT ); Mon, 27 May 2019 04:48:46 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 27 May 2019 01:48:45 -0700 X-ExtLoop1: 1 Received: from gvt.bj.intel.com ([10.238.158.187]) by fmsmga004.fm.intel.com with ESMTP; 27 May 2019 01:48:43 -0700 From: Tina Zhang Cc: Tina Zhang , intel-gvt-dev@lists.freedesktop.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, kraxel@redhat.com, zhenyuw@linux.intel.com, alex.williamson@redhat.com, hang.yuan@intel.com, zhiyuan.lv@intel.com Subject: [PATCH 1/2] vfio: ABI for setting mdev display flip eventfd Date: Mon, 27 May 2019 16:43:11 +0800 Message-Id: <20190527084312.8872-2-tina.zhang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190527084312.8872-1-tina.zhang@intel.com> References: <20190527084312.8872-1-tina.zhang@intel.com> To: unlisted-recipients:; (no To-header on input) Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Add VFIO_DEVICE_SET_GFX_FLIP_EVENTFD ioctl command to set eventfd based signaling mechanism to deliver vGPU framebuffer page flip event to userspace. Signed-off-by: Tina Zhang --- include/uapi/linux/vfio.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h index 02bb7ad6e986..27300597717f 100644 --- a/include/uapi/linux/vfio.h +++ b/include/uapi/linux/vfio.h @@ -696,6 +696,18 @@ struct vfio_device_ioeventfd { #define VFIO_DEVICE_IOEVENTFD _IO(VFIO_TYPE, VFIO_BASE + 16) +/** + * VFIO_DEVICE_SET_GFX_FLIP_EVENTFD - _IOW(VFIO_TYPE, VFIO_BASE + 17, __s32) + * + * Set eventfd based signaling mechanism to deliver vGPU framebuffer page + * flip event to userspace. A value of -1 is used to stop the page flip + * delivering. + * + * Return: 0 on success, -errno on failure. + */ + +#define VFIO_DEVICE_SET_GFX_FLIP_EVENTFD _IO(VFIO_TYPE, VFIO_BASE + 17) + /* -------- API for Type1 VFIO IOMMU -------- */ /** -- 2.17.1