diff options
| author | CQ Tang <cq.tang@intel.com> | 2017-05-10 11:39:03 -0700 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2017-05-17 14:57:56 +0200 |
| commit | 15060aba717115dc9f204c02213a7c6bf341163e (patch) | |
| tree | 7ecaa7018f3cf6259a8b0344f63d727dbfccbab2 /drivers/iommu/intel-iommu.c | |
| parent | 2ea659a9ef488125eb46da6eb571de5eae5c43f6 (diff) | |
iommu/vt-d: Helper function to query if a pasid has any active users
A driver would need to know if there are any active references to a
a PASID before cleaning up its resources. This function helps check
if there are any active users of a PASID before it can perform any
recovery on that device.
To: Joerg Roedel <joro@8bytes.org>
To: linux-kernel@vger.kernel.org
To: David Woodhouse <dwmw2@infradead.org>
Cc: Jean-Phillipe Brucker <jean-philippe.brucker@arm.com>
Cc: iommu@lists.linux-foundation.org
Signed-off-by: CQ Tang <cq.tang@intel.com>
Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/intel-iommu.c')
0 files changed, 0 insertions, 0 deletions