tree b1051d9a4fc7cb1898500eff2fc2c00ed9546e4e
parent dc88db7ee9f9a0a850dcee5738031f888ba124b7
author Joerg Roedel <jroedel@suse.de> 1404824503 +0200
committer Joerg Roedel <jroedel@suse.de> 1404999406 +0200

iommu/amd: Add pasid_state->invalid flag

This is used to signal the ppr_notifer function that no more
faults should be processes on this pasid_state. This way we
can keep the pasid_state safely in the state-table so that
it can be freed in the amd_iommu_unbind_pasid() function.

This allows us to not hold a reference to the mm_struct
during the whole pasid-binding-time.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
Tested-by: Oded Gabbay <Oded.Gabbay@amd.com>