Commit c3b497c6 authored Jul 11, 2014 by Jiang Liu Committed by Joerg Roedel Jul 23, 2014

iommu/vt-d: Match segment number when searching for dev_iotlb capable devices



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>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

parent cbb24a25

drivers/iommu/intel-iommu.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -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;
		}