| Message ID | 1405059585-10620-2-git-send-email-jiang.liu@linux.intel.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 3664d0d00338..147ab1c0b573 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -1272,7 +1272,8 @@ iommu_support_dev_iotlb (struct dmar_domain *domain, struct intel_iommu *iommu, spin_lock_irqsave(&device_domain_lock, flags); list_for_each_entry(info, &domain->devices, link) - if (info->bus == bus && info->devfn == devfn) { + if (info->iommu == iommu && info->bus == bus && + info->devfn == devfn) { found = 1; break; }
For virtual machine and static identity domains, there may be devices from different PCI segments associated with the same domain. So function iommu_support_dev_iotlb() should also match PCI segment number (iommu unit) when searching for dev_iotlb capable devices. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> --- drivers/iommu/intel-iommu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)