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| author | Alex Williamson <alex.williamson@redhat.com> | 2011-05-24 12:02:41 +0100 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2011-05-24 13:08:34 +0100 |
| commit | 7b668357810ecb5fdda4418689d50f5d95aea6a8 (patch) | |
| tree | 5a448c81b76121cd3903f807288bd562dc27645b | |
| parent | b3a530e4e734cab7043a3ab7d135f539042443a7 (diff) | |
| download | linux-7b668357810ecb5fdda4418689d50f5d95aea6a8.tar.bz2 | |
intel-iommu: Flush unmaps at domain_exit
We typically batch unmaps to be lazily flushed out at
regular intervals. When we destroy a domain, we need
to force a flush of these lazy unmaps to be sure none
reference the domain we're about to free.
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=35062
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Cc: stable@kernel.org
| -rw-r--r-- | drivers/pci/intel-iommu.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 4e4e0202e59d..395f253c0494 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -1422,6 +1422,10 @@ static void domain_exit(struct dmar_domain *domain) if (!domain) return; + /* Flush any lazy unmaps that may reference this domain */ + if (!intel_iommu_strict) + flush_unmaps_timeout(0); + domain_remove_dev_info(domain); /* destroy iovas */ put_iova_domain(&domain->iovad); |