From patchwork Tue Dec 17 17:10:50 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kirti Wankhede X-Patchwork-Id: 11298325 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C6AB314E3 for ; Tue, 17 Dec 2019 17:40:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A4E7C24672 for ; Tue, 17 Dec 2019 17:40:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="H7iFs1Ty" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727805AbfLQRkO (ORCPT ); Tue, 17 Dec 2019 12:40:14 -0500 Received: from hqnvemgate24.nvidia.com ([216.228.121.143]:13216 "EHLO hqnvemgate24.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727801AbfLQRkO (ORCPT ); Tue, 17 Dec 2019 12:40:14 -0500 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate24.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Tue, 17 Dec 2019 09:39:45 -0800 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Tue, 17 Dec 2019 09:40:13 -0800 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Tue, 17 Dec 2019 09:40:13 -0800 Received: from HQMAIL101.nvidia.com (172.20.187.10) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 17 Dec 2019 17:40:13 +0000 Received: from kwankhede-dev.nvidia.com (10.124.1.5) by HQMAIL101.nvidia.com (172.20.187.10) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Tue, 17 Dec 2019 17:40:06 +0000 From: Kirti Wankhede To: , CC: , , , , , , , , , , , , , , , , , , , , "Kirti Wankhede" Subject: [PATCH v11 Kernel 5/6] vfio iommu: Adds flag to indicate dirty pages tracking capability support Date: Tue, 17 Dec 2019 22:40:50 +0530 Message-ID: <1576602651-15430-6-git-send-email-kwankhede@nvidia.com> X-Mailer: git-send-email 2.7.0 In-Reply-To: <1576602651-15430-1-git-send-email-kwankhede@nvidia.com> References: <1576602651-15430-1-git-send-email-kwankhede@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1576604385; bh=DW9hT32ZjvMazv9WgrRRguhla9Bh9yIz00pg6aOHvIw=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:X-NVConfidentiality:MIME-Version: Content-Type; b=H7iFs1Ty/cnaYEUhsmvT8EE2OEoJPWCCyjiLeTvC4N2ONU7c7hzPVY7qTZMLGRTQC /nlUc5/Sjz76DA3ScBom7D5oNKGKpSOdCDe/mmjsbUdB3TXhpm5yh3zj4xgz2fnWSa AQtyak7Du6MaE2937rZ8vE+E1CJKojNOVpcwLxHOmRR70RAgrL7gzWHHQ5PEWGM3aw MbSiXNvME46cjZWvoSB/RHryhGZ9ErDkBotxE9177/T5norzDnHgSiiveIKQK5Ai9j kg1ra1Zdc36NnsiMCrFm+4MwugYlcuoQAyMdNWYjPJwwKQiJub/7Mn2acBTLn8nioT JSo0mlMXTGesg== Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Flag VFIO_IOMMU_INFO_DIRTY_PGS in VFIO_IOMMU_GET_INFO indicates that driver support dirty pages tracking. Signed-off-by: Kirti Wankhede Reviewed-by: Neo Jia --- drivers/vfio/vfio_iommu_type1.c | 3 ++- include/uapi/linux/vfio.h | 5 +++-- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c index 101c2b1e72b4..68d8ed3b2665 100644 --- a/drivers/vfio/vfio_iommu_type1.c +++ b/drivers/vfio/vfio_iommu_type1.c @@ -2368,7 +2368,8 @@ static long vfio_iommu_type1_ioctl(void *iommu_data, info.cap_offset = 0; /* output, no-recopy necessary */ } - info.flags = VFIO_IOMMU_INFO_PGSIZES; + info.flags = VFIO_IOMMU_INFO_PGSIZES | + VFIO_IOMMU_INFO_DIRTY_PGS; info.iova_pgsizes = vfio_pgsize_bitmap(iommu); diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h index e8e044c4974d..bdd07e8429e3 100644 --- a/include/uapi/linux/vfio.h +++ b/include/uapi/linux/vfio.h @@ -907,8 +907,9 @@ struct vfio_device_ioeventfd { struct vfio_iommu_type1_info { __u32 argsz; __u32 flags; -#define VFIO_IOMMU_INFO_PGSIZES (1 << 0) /* supported page sizes info */ -#define VFIO_IOMMU_INFO_CAPS (1 << 1) /* Info supports caps */ +#define VFIO_IOMMU_INFO_PGSIZES (1 << 0) /* supported page sizes info */ +#define VFIO_IOMMU_INFO_CAPS (1 << 1) /* Info supports caps */ +#define VFIO_IOMMU_INFO_DIRTY_PGS (1 << 2) /* supports dirty page tracking */ __u64 iova_pgsizes; /* Bitmap of supported page sizes */ __u32 cap_offset; /* Offset within info struct of first cap */ };