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| author | Jason Wang <jasowang@redhat.com> | 2020-10-23 17:00:42 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2020-10-23 11:55:28 -0400 |
| commit | 1b48dc03e575a872404f33b04cd237953c5d7498 (patch) | |
| tree | fe5eef605b984025089f157447ff13c61e5fba94 /drivers/iommu | |
| parent | 3f1b623a1be92103386bcab818e25885d6be9419 (diff) | |
| download | linux-1b48dc03e575a872404f33b04cd237953c5d7498.tar.bz2 | |
vhost: vdpa: report iova range
This patch introduces a new ioctl for vhost-vdpa device that can
report the iova range by the device.
For device that implements get_iova_range() method, we fetch it from
the vDPA device. If device doesn't implement get_iova_range() but
depends on platform IOMMU, we will query via DOMAIN_ATTR_GEOMETRY,
otherwise [0, ULLONG_MAX] is assumed.
For safety, this patch also rules out the map request which is not in
the valid range.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20201023090043.14430-3-jasowang@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/iommu')
0 files changed, 0 insertions, 0 deletions