Commit 7b668357 authored by Alex Williamson's avatar Alex Williamson Committed by David Woodhouse

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=35062Signed-off-by: default avatarAlex Williamson <alex.williamson@redhat.com>
Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
Cc: stable@kernel.org
parent b3a530e4
...@@ -1422,6 +1422,10 @@ static void domain_exit(struct dmar_domain *domain) ...@@ -1422,6 +1422,10 @@ static void domain_exit(struct dmar_domain *domain)
if (!domain) if (!domain)
return; return;
/* Flush any lazy unmaps that may reference this domain */
if (!intel_iommu_strict)
flush_unmaps_timeout(0);
domain_remove_dev_info(domain); domain_remove_dev_info(domain);
/* destroy iovas */ /* destroy iovas */
put_iova_domain(&domain->iovad); put_iova_domain(&domain->iovad);
......
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