From patchwork Thu Nov 22 16:54:56 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cornelia Huck X-Patchwork-Id: 10694527 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9E82C1709 for ; Thu, 22 Nov 2018 16:55:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8CC5629D0A for ; Thu, 22 Nov 2018 16:55:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8091B2CD5D; Thu, 22 Nov 2018 16:55:15 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 14E9629D0A for ; Thu, 22 Nov 2018 16:55:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2406104AbeKWDf0 (ORCPT ); Thu, 22 Nov 2018 22:35:26 -0500 Received: from mx1.redhat.com ([209.132.183.28]:42398 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404133AbeKWDf0 (ORCPT ); Thu, 22 Nov 2018 22:35:26 -0500 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 41A2680F82; Thu, 22 Nov 2018 16:55:14 +0000 (UTC) Received: from localhost (ovpn-117-71.ams2.redhat.com [10.36.117.71]) by smtp.corp.redhat.com (Postfix) with ESMTPS id E49DB171F7; Thu, 22 Nov 2018 16:55:07 +0000 (UTC) From: Cornelia Huck To: Halil Pasic , Eric Farman , Farhan Ali , Pierre Morel Cc: linux-s390@vger.kernel.org, kvm@vger.kernel.org, qemu-s390x@nongnu.org, qemu-devel@nongnu.org, Alex Williamson , Cornelia Huck Subject: [PATCH 1/2] vfio-ccw: new capability chain support Date: Thu, 22 Nov 2018 17:54:56 +0100 Message-Id: <20181122165457.4517-2-cohuck@redhat.com> In-Reply-To: <20181122165457.4517-1-cohuck@redhat.com> References: <20181122165457.4517-1-cohuck@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.27]); Thu, 22 Nov 2018 16:55:14 +0000 (UTC) Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP To be replaced with a real linux-headers update. Signed-off-by: Cornelia Huck --- linux-headers/linux/vfio.h | 4 ++++ linux-headers/linux/vfio_ccw.h | 12 ++++++++++++ 2 files changed, 16 insertions(+) diff --git a/linux-headers/linux/vfio.h b/linux-headers/linux/vfio.h index ceb6453394..c9ba8d52a0 100644 --- a/linux-headers/linux/vfio.h +++ b/linux-headers/linux/vfio.h @@ -297,12 +297,16 @@ struct vfio_region_info_cap_type { #define VFIO_REGION_TYPE_PCI_VENDOR_TYPE (1 << 31) #define VFIO_REGION_TYPE_PCI_VENDOR_MASK (0xffff) +#define VFIO_REGION_TYPE_CCW (1 << 30) /* 8086 Vendor sub-types */ #define VFIO_REGION_SUBTYPE_INTEL_IGD_OPREGION (1) #define VFIO_REGION_SUBTYPE_INTEL_IGD_HOST_CFG (2) #define VFIO_REGION_SUBTYPE_INTEL_IGD_LPC_CFG (3) +/* ccw sub-types */ +#define VFIO_REGION_SUBTYPE_CCW_ASYNC_CMD (1) + /* * The MSIX mappable capability informs that MSIX data of a BAR can be mmapped * which allows direct access to non-MSIX registers which happened to be within diff --git a/linux-headers/linux/vfio_ccw.h b/linux-headers/linux/vfio_ccw.h index 5bf96c3812..fcc3e69ef5 100644 --- a/linux-headers/linux/vfio_ccw.h +++ b/linux-headers/linux/vfio_ccw.h @@ -12,6 +12,7 @@ #include +/* used for START SUBCHANNEL, always present */ struct ccw_io_region { #define ORB_AREA_SIZE 12 __u8 orb_area[ORB_AREA_SIZE]; @@ -22,4 +23,15 @@ struct ccw_io_region { __u32 ret_code; } __attribute__((packed)); +/* + * used for processing commands that trigger asynchronous actions + * Note: this is controlled by a capability + */ +#define VFIO_CCW_ASYNC_CMD_HSCH (1 << 0) +#define VFIO_CCW_ASYNC_CMD_CSCH (1 << 1) +struct ccw_cmd_region { + __u32 command; + __u32 ret_code; +} __attribute__((packed)); + #endif