iommu/vt-d: Always enable PASID/PRI PCI capabilities before ATS

Browse source

The behaviour if you enable PASID support after ATS is undefined. So we
have to enable it first, even if we don't know whether we'll need it.

This is safe enough; unless we set up a context that permits it, the device
can't actually *do* anything with it.

Also shift the feature detction to dmar_insert_one_dev_info() as it only
needs to happen once.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

...

This commit is contained in:

David Woodhouse 2015-10-12 14:17:37 +01:00

parent 8a94ade4ce

commit b16d0cb9e2

2 changed files with 76 additions and 35 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

1

drivers/iommu/Kconfig

View file

110

drivers/iommu/intel-iommu.c

View file