linux-kernel - [RFC 0/9] IOMMU driver changes for shared virtual memory virtualization

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Message-Id: <1497478983-77580-1-git-send-email-jacob.jun.pan@linux.intel.com>
Date:   Wed, 14 Jun 2017 15:22:54 -0700
From:   Jacob Pan <jacob.jun.pan@...ux.intel.com>
To:     iommu@...ts.linux-foundation.org,
        LKML <linux-kernel@...r.kernel.org>,
        Joerg Roedel <joro@...tes.org>,
        David Woodhouse <dwmw2@...radead.org>
Cc:     "Liu, Yi L" <yi.l.liu@...el.com>,
        Lan Tianyu <tianyu.lan@...el.com>,
        "Tian, Kevin" <kevin.tian@...el.com>,
        Raj Ashok <ashok.raj@...el.com>,
        Alex Williamson <alex.williamson@...hat.com>,
        Jean Delvare <khali@...ux-fr.org>,
        Jacob Pan <jacob.jun.pan@...ux.intel.com>
Subject: [RFC 0/9] IOMMU driver changes for shared virtual memory virtualization

This patchset provides IOMMU driver support of shared virtual memory (SVM)
virtualization. Generic APIs are introduced in addition to Intel VT-d specific
changes, the goal is to have common interfaces across IOMMU and device types for
both VFIO and other in-kernel users.

This is the IOMMU portion follow up of the more complete series of
the kernel changes to support SVM. Please refer to the link below for more
details.
https://www.spinics.net/lists/kvm/msg148819.html
New in this series are the IOMMU fault notification APIs.

At the top level, three new IOMMU interfaces are introduced:
 - bind PASID table
 - passdown invalidation
 - per device IOMMU fault notification

The additional patches are Intel VT-d specific, which either implements or
replaces existing private interfaces with the generic ones.

Thanks,

Jacob


Jacob Pan (8):
  iommu: Introduce bind_pasid_table API function
  iommu/vt-d: add bind_pasid_table function
  iommu/vt-d: Add iommu do invalidate function
  iommu: Introduce fault notifier API
  iommu/vt-d: track device with pasid table bond to a guest
  iommu/dmar: notify unrecoverable faults
  iommu/intel-svm: notify page request to guest
  iommu/intel-svm: replace dev ops with generic fault notifier

Liu, Yi L (1):
  iommu: Introduce iommu do invalidate API function

 drivers/iommu/dmar.c          |  37 ++++++++-
 drivers/iommu/intel-iommu.c   | 169 +++++++++++++++++++++++++++++++++++++-----
 drivers/iommu/intel-svm.c     |  94 ++++++++++++++++++++---
 drivers/iommu/iommu.c         |  95 ++++++++++++++++++++++++
 include/linux/dma_remapping.h |   1 +
 include/linux/intel-iommu.h   |  30 +++++++-
 include/linux/intel-svm.h     |  20 +----
 include/linux/iommu.h         |  88 ++++++++++++++++++++++
 include/uapi/linux/iommu.h    |  37 +++++++++
 9 files changed, 522 insertions(+), 49 deletions(-)
 create mode 100644 include/uapi/linux/iommu.h

-- 
2.7.4