linux-kernel - [RFC PATCH 0/2] iommu/s390: Fix iommu-groups and add sysfs support

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Message-Id: <1493306905-32334-1-git-send-email-joro@8bytes.org>
Date:   Thu, 27 Apr 2017 17:28:23 +0200
From:   Joerg Roedel <joro@...tes.org>
To:     Sebastian Ott <sebott@...ux.vnet.ibm.com>,
        Gerald Schaefer <gerald.schaefer@...ibm.com>
Cc:     iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        Joerg Roedel <joro@...tes.org>
Subject: [RFC PATCH 0/2] iommu/s390: Fix iommu-groups and add sysfs support

Hey,

here are two patches for the s390 PCI and IOMMU code. It is
based on the assumption that every pci_dev that points to
the same zpci_dev shares a single dma-table (and thus a
single address space).

If this assupmtion is true (as it looks to me from reading
the code) then the iommu-group setup code in the s390 iommu
driver needs to be updated.

These patches do this and also add support for the
iommu_device_register interface to the s390 iommu driver.

Any comments and testing appreciated.

Thanks,

	Joerg

Joerg Roedel (2):
  iommu/s390: Fix IOMMU groups
  iommu/s390: Add support for iommu_device handling

 arch/s390/include/asm/pci.h |  8 +++++
 arch/s390/pci/pci.c         | 10 ++++++-
 drivers/iommu/s390-iommu.c  | 71 ++++++++++++++++++++++++++++++++++++++-------
 3 files changed, 78 insertions(+), 11 deletions(-)

-- 
1.9.1