From: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
To: <alex.williamson@redhat.com>, <eric.auger@redhat.com>,
<pmorel@linux.vnet.ibm.com>
Cc: <kvm@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linuxarm@huawei.com>, <john.garry@huawei.com>,
<xuwei5@hisilicon.com>,
Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Subject: [RFC v2 0/5] vfio/type1: Add support for valid iova list management
Date: Fri, 12 Jan 2018 16:45:26 +0000 [thread overview]
Message-ID: <20180112164531.93712-1-shameerali.kolothum.thodi@huawei.com> (raw)
This series introduces an iova list associated with a vfio
iommu. The list is kept updated taking care of iommu apertures,
and reserved regions. Also this series adds checks for any conflict
with existing dma mappings whenever a new device group is attached to
the domain.
User-space can retrieve valid iova ranges using VFIO_IOMMU_GET_INFO
ioctl capability chains. Any dma map request outside the valid iova
range will be rejected.
RFC v1 --> v2
Addressed comments from Alex:
-Introduced IOVA list management and added checks for conflicts with
existing dma map entries during attach/detach.
Shameer Kolothum (5):
vfio/type1: Introduce iova list and add iommu aperture validity check
vfio/type1: Check reserve region conflict and update iova list
vfio/type1: check dma map request is within a valid iova range
vfio/type1: Add IOVA range capability support
vfio/type1: remove duplicate retrieval of reserved regions.
drivers/vfio/vfio_iommu_type1.c | 466 +++++++++++++++++++++++++++++++++++++++-
include/uapi/linux/vfio.h | 23 ++
2 files changed, 478 insertions(+), 11 deletions(-)
--
1.9.1
next reply other threads:[~2018-01-12 16:49 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-12 16:45 Shameer Kolothum [this message]
2018-01-12 16:45 ` [RFC v2 1/5] vfio/type1: Introduce iova list and add iommu aperture validity check Shameer Kolothum
2018-01-18 0:04 ` Alex Williamson
2018-01-19 9:47 ` Shameerali Kolothum Thodi
2018-01-23 8:25 ` Auger Eric
2018-01-23 10:04 ` Shameerali Kolothum Thodi
2018-01-23 11:20 ` Auger Eric
2018-01-12 16:45 ` [RFC v2 2/5] vfio/type1: Check reserve region conflict and update iova list Shameer Kolothum
2018-01-18 0:04 ` Alex Williamson
2018-01-19 9:48 ` Shameerali Kolothum Thodi
2018-01-19 15:45 ` Alex Williamson
2018-01-23 8:32 ` Auger Eric
2018-01-23 12:16 ` Shameerali Kolothum Thodi
2018-01-23 12:51 ` Auger Eric
2018-01-23 15:26 ` Shameerali Kolothum Thodi
2018-01-12 16:45 ` [RFC v2 3/5] vfio/type1: check dma map request is within a valid iova range Shameer Kolothum
2018-01-23 8:38 ` Auger Eric
2018-01-12 16:45 ` [RFC v2 4/5] vfio/type1: Add IOVA range capability support Shameer Kolothum
2018-01-23 11:16 ` Auger Eric
2018-01-23 12:51 ` Shameerali Kolothum Thodi
2018-01-12 16:45 ` [RFC v2 5/5] vfio/type1: remove duplicate retrieval of reserved regions Shameer Kolothum
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