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-rw-r--r--kernel/drivers/iommu/intel-iommu.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/kernel/drivers/iommu/intel-iommu.c b/kernel/drivers/iommu/intel-iommu.c
index 5ecfaf299..c87c4b1bf 100644
--- a/kernel/drivers/iommu/intel-iommu.c
+++ b/kernel/drivers/iommu/intel-iommu.c
@@ -1756,8 +1756,9 @@ 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)
@@ -1777,8 +1778,10 @@ 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);