diff options
| -rw-r--r-- | drivers/iommu/intel/iommu.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index cc46098f875b..47c74b20d342 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -2871,16 +2871,19 @@ void intel_iommu_shutdown(void) if (no_iommu || dmar_disabled) return; - down_write(&dmar_global_lock); + /* + * All other CPUs were brought down, hotplug interrupts were disabled, + * no lock and RCU checking needed anymore + */ + list_for_each_entry(drhd, &dmar_drhd_units, list) { + iommu = drhd->iommu; - /* Disable PMRs explicitly here. */ - for_each_iommu(iommu, drhd) + /* Disable PMRs explicitly here. */ iommu_disable_protect_mem_regions(iommu); - /* Make sure the IOMMUs are switched off */ - intel_disable_iommus(); - - up_write(&dmar_global_lock); + /* Make sure the IOMMUs are switched off */ + iommu_disable_translation(iommu); + } } static struct intel_iommu *dev_to_intel_iommu(struct device *dev) |