Merge tag 'pci-v4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

[mirror_ubuntu-artful-kernel.git] / drivers / iommu / intel-iommu.c

diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index c22a5490eea7cad69a5af4a1d79711ed35334afe..697291aceea71103855d281d2a434a142e176808 100644 (file)
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -1836,8 +1836,9 @@ static int domain_init(struct dmar_domain *domain, int guest_width)
 
 static void domain_exit(struct dmar_domain *domain)
 {
+       struct dmar_drhd_unit *drhd;
+       struct intel_iommu *iommu;
        struct page *freelist = NULL;
-       int i;
 
        /* Domain 0 is reserved, so dont process it */
        if (!domain)
@@ -1857,8 +1858,10 @@ static void domain_exit(struct dmar_domain *domain)
 
        /* clear attached or cached domains */
        rcu_read_lock();
-       for_each_set_bit(i, domain->iommu_bmp, g_num_of_iommus)
-               iommu_detach_domain(domain, g_iommus[i]);
+       for_each_active_iommu(iommu, drhd)
+               if (domain_type_is_vm(domain) ||
+                   test_bit(iommu->seq_id, domain->iommu_bmp))
+                       iommu_detach_domain(domain, iommu);
        rcu_read_unlock();
 
        dma_free_pagelist(freelist);