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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 68A41C433B4 for ; Fri, 23 Apr 2021 09:52:10 +0000 (UTC) Received: from smtp4.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D5A6D6144D for ; Fri, 23 Apr 2021 09:52:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D5A6D6144D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by smtp4.osuosl.org (Postfix) with ESMTP id 7156E414FA; Fri, 23 Apr 2021 09:52:09 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp4.osuosl.org ([127.0.0.1]) by localhost (smtp4.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 3GDEnCMqj0e7; Fri, 23 Apr 2021 09:52:08 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by smtp4.osuosl.org (Postfix) with ESMTP id 19A91414F9; Fri, 23 Apr 2021 09:52:08 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id EA83EC001A; Fri, 23 Apr 2021 09:52:07 +0000 (UTC) Received: from smtp2.osuosl.org (smtp2.osuosl.org [140.211.166.133]) by lists.linuxfoundation.org (Postfix) with ESMTP id 18000C000F; Fri, 23 Apr 2021 09:52:07 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp2.osuosl.org (Postfix) with ESMTP id 0E2DC40610; Fri, 23 Apr 2021 09:52:07 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id TMmg2Tc5suH6; Fri, 23 Apr 2021 09:52:04 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp2.osuosl.org (Postfix) with ESMTP id 39242400D9; Fri, 23 Apr 2021 09:52:04 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 7F48513A1; Fri, 23 Apr 2021 02:52:03 -0700 (PDT) Received: from usa.arm.com (a074945.blr.arm.com [10.162.16.71]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id DB7363F774; Fri, 23 Apr 2021 02:51:58 -0700 (PDT) From: Vivek Gautam To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, iommu@lists.linux-foundation.org, virtualization@lists.linux-foundation.org Subject: [PATCH RFC v1 01/11] uapi/virtio-iommu: Add page request grp-id and flags information Date: Fri, 23 Apr 2021 15:21:37 +0530 Message-Id: <20210423095147.27922-2-vivek.gautam@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210423095147.27922-1-vivek.gautam@arm.com> References: <20210423095147.27922-1-vivek.gautam@arm.com> Cc: jean-philippe@linaro.org, kevin.tian@intel.com, mst@redhat.com, will.deacon@arm.com, Alex Williamson , Vivek Gautam , robin.murphy@arm.com X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" Add fault information for group-id and necessary flags for page request faults that can be handled by page fault handler in virtio-iommu driver. Signed-off-by: Vivek Gautam Cc: Joerg Roedel Cc: Will Deacon Cc: Robin Murphy Cc: Jean-Philippe Brucker Cc: Eric Auger Cc: Alex Williamson Cc: Kevin Tian Cc: Jacob Pan Cc: Liu Yi L Cc: Lorenzo Pieralisi Cc: Shameerali Kolothum Thodi --- include/uapi/linux/virtio_iommu.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/include/uapi/linux/virtio_iommu.h b/include/uapi/linux/virtio_iommu.h index f8bf927a0689..accc3318ce46 100644 --- a/include/uapi/linux/virtio_iommu.h +++ b/include/uapi/linux/virtio_iommu.h @@ -307,14 +307,27 @@ struct virtio_iommu_req_invalidate { #define VIRTIO_IOMMU_FAULT_F_DMA_UNRECOV 1 #define VIRTIO_IOMMU_FAULT_F_PAGE_REQ 2 +#define VIRTIO_IOMMU_FAULT_PRQ_F_PASID_VALID (1 << 0) +#define VIRTIO_IOMMU_FAULT_PRQ_F_LAST_PAGE (1 << 1) +#define VIRTIO_IOMMU_FAULT_PRQ_F_PRIV_DATA (1 << 2) +#define VIRTIO_IOMMU_FAULT_PRQ_F_NEEDS_PASID (1 << 3) + +#define VIRTIO_IOMMU_FAULT_UNREC_F_PASID_VALID (1 << 0) +#define VIRTIO_IOMMU_FAULT_UNREC_F_ADDR_VALID (1 << 1) +#define VIRTIO_IOMMU_FAULT_UNREC_F_FETCH_ADDR_VALID (1 << 2) + struct virtio_iommu_fault { __u8 reason; __u8 reserved[3]; __le16 flt_type; __u8 reserved2[2]; + /* flags is actually permission flags */ __le32 flags; + /* flags for PASID and Page request handling info */ + __le32 pr_evt_flags; __le32 endpoint; __le32 pasid; + __le32 grpid; __u8 reserved3[4]; __le64 address; __u8 reserved4[8]; -- 2.17.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu