From: Greg Kroah-Hartman <gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>
To: Jacob Pan <jacob.jun.pan-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
Cc: Lan Tianyu <tianyu.lan-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Rafael Wysocki
<rafael.j.wysocki-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
LKML <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Jean Delvare <khali-PUYAD+kWke1g9hUCZPvPmw@public.gmane.org>,
David Woodhouse <dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
Subject: Re: [PATCH v3 09/16] driver core: add iommu device fault reporting data
Date: Mon, 18 Dec 2017 15:37:53 +0100 [thread overview]
Message-ID: <20171218143753.GA14211@kroah.com> (raw)
In-Reply-To: <1510944914-54430-10-git-send-email-jacob.jun.pan-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
On Fri, Nov 17, 2017 at 10:55:07AM -0800, Jacob Pan wrote:
> DMA faults can be detected by IOMMU at device level. Adding a pointer
> to struct device allows IOMMU subsystem to report relevant faults
> back to the device driver for further handling.
> For direct assigned device (or user space drivers), guest OS holds
> responsibility to handle and respond per device IOMMU fault.
> Therefore we need fault reporting mechanism to propagate faults beyond
> IOMMU subsystem.
>
> There are two other IOMMU data pointers under struct device today, here
> we introduce iommu_param as a parent pointer such that all device IOMMU
> data can be consolidated here. The idea was suggested here by Greg KH
> and Joerg. The name iommu_param is chosen here since iommu_data has been used.
>
> Suggested-by: Greg Kroah-Hartman <gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>
> Signed-off-by: Jacob Pan <jacob.jun.pan-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
> Link: https://lkml.org/lkml/2017/10/6/81
Acked-by: Greg Kroah-Hartman <gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>
WARNING: multiple messages have this Message-ID (diff)
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: iommu@lists.linux-foundation.org,
LKML <linux-kernel@vger.kernel.org>,
Joerg Roedel <joro@8bytes.org>,
David Woodhouse <dwmw2@infradead.org>,
Rafael Wysocki <rafael.j.wysocki@intel.com>,
Alex Williamson <alex.williamson@redhat.com>,
"Liu, Yi L" <yi.l.liu@intel.com>,
Lan Tianyu <tianyu.lan@intel.com>,
"Tian, Kevin" <kevin.tian@intel.com>,
Raj Ashok <ashok.raj@intel.com>,
Jean Delvare <khali@linux-fr.org>,
Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH v3 09/16] driver core: add iommu device fault reporting data
Date: Mon, 18 Dec 2017 15:37:53 +0100 [thread overview]
Message-ID: <20171218143753.GA14211@kroah.com> (raw)
In-Reply-To: <1510944914-54430-10-git-send-email-jacob.jun.pan@linux.intel.com>
On Fri, Nov 17, 2017 at 10:55:07AM -0800, Jacob Pan wrote:
> DMA faults can be detected by IOMMU at device level. Adding a pointer
> to struct device allows IOMMU subsystem to report relevant faults
> back to the device driver for further handling.
> For direct assigned device (or user space drivers), guest OS holds
> responsibility to handle and respond per device IOMMU fault.
> Therefore we need fault reporting mechanism to propagate faults beyond
> IOMMU subsystem.
>
> There are two other IOMMU data pointers under struct device today, here
> we introduce iommu_param as a parent pointer such that all device IOMMU
> data can be consolidated here. The idea was suggested here by Greg KH
> and Joerg. The name iommu_param is chosen here since iommu_data has been used.
>
> Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
> Link: https://lkml.org/lkml/2017/10/6/81
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
next prev parent reply other threads:[~2017-12-18 14:37 UTC|newest]
Thread overview: 94+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-17 18:54 [PATCH v3 00/16] [PATCH v3 00/16] IOMMU driver support for SVM virtualization Jacob Pan
2017-11-17 18:54 ` Jacob Pan
[not found] ` <1510944914-54430-1-git-send-email-jacob.jun.pan-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2017-11-17 18:54 ` [PATCH v3 01/16] iommu: introduce bind_pasid_table API function Jacob Pan
2017-11-17 18:54 ` Jacob Pan
2017-11-24 12:04 ` Jean-Philippe Brucker
2017-11-29 22:01 ` Jacob Pan
2017-11-17 18:55 ` [PATCH v3 02/16] iommu/vt-d: add bind_pasid_table function Jacob Pan
2017-11-17 18:55 ` Jacob Pan
2017-11-17 18:55 ` [PATCH v3 04/16] iommu/vt-d: move device_domain_info to header Jacob Pan
2017-11-17 18:55 ` Jacob Pan
2017-11-17 18:55 ` [PATCH v3 05/16] iommu/vt-d: support flushing more TLB types Jacob Pan
2017-11-17 18:55 ` Jacob Pan
[not found] ` <1510944914-54430-6-git-send-email-jacob.jun.pan-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2017-11-20 14:20 ` Lukoshkov, Maksim
2017-11-20 14:20 ` Lukoshkov, Maksim
[not found] ` <04788a00-2075-7975-2f13-b9e032688305-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-11-20 18:40 ` Jacob Pan
2017-11-20 18:40 ` Jacob Pan
2017-11-17 18:55 ` [PATCH v3 10/16] iommu: introduce device fault report API Jacob Pan
2017-11-17 18:55 ` Jacob Pan
2017-12-05 6:22 ` Lu Baolu
[not found] ` <5A263B31.6050808-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2017-12-08 21:22 ` Jacob Pan
2017-12-08 21:22 ` Jacob Pan
[not found] ` <1510944914-54430-11-git-send-email-jacob.jun.pan-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2017-12-07 21:27 ` Alex Williamson
2017-12-07 21:27 ` Alex Williamson
[not found] ` <20171207142725.731695ea-1yVPhWWZRC1BDLzU/O5InQ@public.gmane.org>
2017-12-08 20:23 ` Jacob Pan
2017-12-08 20:23 ` Jacob Pan
2017-12-08 20:59 ` Alex Williamson
2017-12-08 20:59 ` Alex Williamson
[not found] ` <20171208135909.0ee02d16-1yVPhWWZRC1BDLzU/O5InQ@public.gmane.org>
2017-12-08 21:22 ` Jacob Pan
2017-12-08 21:22 ` Jacob Pan
2018-01-10 12:39 ` Jean-Philippe Brucker
2018-01-18 19:24 ` Jean-Philippe Brucker
2018-01-23 20:01 ` Jacob Pan
2017-11-17 18:55 ` [PATCH v3 11/16] iommu/vt-d: use threaded irq for dmar_fault Jacob Pan
2017-11-17 18:55 ` Jacob Pan
2017-11-17 18:55 ` [PATCH v3 12/16] iommu/vt-d: report unrecoverable device faults Jacob Pan
2017-11-17 18:55 ` Jacob Pan
[not found] ` <1510944914-54430-13-git-send-email-jacob.jun.pan-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2017-12-05 6:34 ` Lu Baolu
2017-12-05 6:34 ` Lu Baolu
2017-11-17 18:55 ` [PATCH v3 13/16] iommu/intel-svm: notify page request to guest Jacob Pan
2017-11-17 18:55 ` Jacob Pan
[not found] ` <1510944914-54430-14-git-send-email-jacob.jun.pan-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2017-12-05 7:37 ` Lu Baolu
2017-12-05 7:37 ` Lu Baolu
2017-11-17 18:55 ` [PATCH v3 14/16] iommu/intel-svm: replace dev ops with fault report API Jacob Pan
2017-11-17 18:55 ` Jacob Pan
2017-11-17 18:55 ` [PATCH v3 15/16] iommu: introduce page response function Jacob Pan
2017-11-17 18:55 ` Jacob Pan
2017-11-24 12:03 ` Jean-Philippe Brucker
[not found] ` <93661c1c-2d3b-295f-0b9d-52e50ea9e1d0-5wv7dgnIgG8@public.gmane.org>
2017-12-04 21:37 ` Jacob Pan
2017-12-04 21:37 ` Jacob Pan
2017-12-05 17:21 ` Jean-Philippe Brucker
2017-12-05 17:21 ` Jean-Philippe Brucker
[not found] ` <a6cfc27a-6121-1e67-6e0d-f94a383bcd6f-5wv7dgnIgG8@public.gmane.org>
2017-12-06 19:25 ` Jacob Pan
2017-12-06 19:25 ` Jacob Pan
2017-12-07 12:56 ` Jean-Philippe Brucker
2017-12-07 12:56 ` Jean-Philippe Brucker
2017-12-07 21:56 ` Alex Williamson
[not found] ` <20171207145641.50830562-1yVPhWWZRC1BDLzU/O5InQ@public.gmane.org>
2017-12-08 13:51 ` Jean-Philippe Brucker
2017-12-08 13:51 ` Jean-Philippe Brucker
[not found] ` <39fcbbd2-2e6a-f05a-8cb4-8e3ad4ead369-5wv7dgnIgG8@public.gmane.org>
2017-12-08 1:17 ` Jacob Pan
2017-12-08 1:17 ` Jacob Pan
2017-12-08 13:51 ` Jean-Philippe Brucker
2017-12-08 13:51 ` Jean-Philippe Brucker
2017-12-07 21:51 ` Alex Williamson
2017-12-07 21:51 ` Alex Williamson
2017-12-08 13:52 ` Jean-Philippe Brucker
[not found] ` <b0976bc9-68c8-f5c9-881b-5913a4ca1970-5wv7dgnIgG8@public.gmane.org>
2017-12-08 20:40 ` Jacob Pan
2017-12-08 20:40 ` Jacob Pan
2017-12-08 23:01 ` Alex Williamson
2017-12-08 23:01 ` Alex Williamson
2017-11-17 18:55 ` [PATCH v3 16/16] iommu/vt-d: add intel iommu " Jacob Pan
2017-11-17 18:55 ` Jacob Pan
2017-11-17 18:55 ` [PATCH v3 03/16] iommu: introduce iommu invalidate API function Jacob Pan
2017-11-24 12:04 ` Jean-Philippe Brucker
[not found] ` <9fe883f7-8650-20f2-4db1-1539b3e927ae-5wv7dgnIgG8@public.gmane.org>
2017-12-15 19:02 ` Jean-Philippe Brucker
2017-12-15 19:02 ` Jean-Philippe Brucker
2017-12-28 19:25 ` Jacob Pan
2017-12-28 19:25 ` Jacob Pan
2018-01-10 12:00 ` Jean-Philippe Brucker
2018-01-10 12:00 ` Jean-Philippe Brucker
2017-11-17 18:55 ` [PATCH v3 06/16] iommu/vt-d: add svm/sva invalidate function Jacob Pan
[not found] ` <1510944914-54430-7-git-send-email-jacob.jun.pan-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2017-12-05 5:43 ` Lu Baolu
2017-12-05 5:43 ` Lu Baolu
2017-11-17 18:55 ` [PATCH v3 07/16] iommu/vt-d: assign PFSID in device TLB invalidation Jacob Pan
2017-12-05 5:45 ` Lu Baolu
2017-11-17 18:55 ` [PATCH v3 08/16] iommu: introduce device fault data Jacob Pan
2017-11-24 12:03 ` Jean-Philippe Brucker
[not found] ` <65b76897-55b8-6f0c-e103-4337254041ca-5wv7dgnIgG8@public.gmane.org>
2017-11-29 21:55 ` Jacob Pan
2017-11-29 21:55 ` Jacob Pan
2018-01-10 11:41 ` Jean-Philippe Brucker
[not found] ` <f9f9dd55-3191-eba0-f4e7-e7c9f16c00f1-5wv7dgnIgG8@public.gmane.org>
2018-01-11 21:10 ` Jacob Pan
2018-01-11 21:10 ` Jacob Pan
2017-11-17 18:55 ` [PATCH v3 09/16] driver core: add iommu device fault reporting data Jacob Pan
[not found] ` <1510944914-54430-10-git-send-email-jacob.jun.pan-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2017-12-18 14:37 ` Greg Kroah-Hartman [this message]
2017-12-18 14:37 ` Greg Kroah-Hartman
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