From: Jiang Liu <jiang.liu@linux.intel.com>
To: Joerg Roedel <joro@8bytes.org>,
David Woodhouse <dwmw2@infradead.org>,
Yinghai Lu <yinghai@kernel.org>,
Bjorn Helgaas <bhelgaas@google.com>,
Dan Williams <dan.j.williams@intel.com>,
Vinod Koul <vinod.koul@intel.com>,
"Rafael J . Wysocki" <rafael.j.wysocki@intel.com>
Cc: Jiang Liu <jiang.liu@linux.intel.com>,
Ashok Raj <ashok.raj@intel.com>,
Yijing Wang <wangyijing@huawei.com>,
Tony Luck <tony.luck@intel.com>,
iommu@lists.linux-foundation.org, linux-pci@vger.kernel.org,
linux-hotplug@vger.kernel.org, linux-kernel@vger.kernel.org,
dmaengine@vger.kernel.org
Subject: [Patch Part3 V2 01/21] iommu/vt-d: match segment number when searching for dev_iotlb capable devices
Date: Tue, 6 May 2014 15:05:12 +0800 [thread overview]
Message-ID: <1399359932-28972-2-git-send-email-jiang.liu@linux.intel.com> (raw)
In-Reply-To: <1399359932-28972-1-git-send-email-jiang.liu@linux.intel.com>
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(-)
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index f256ffc02e29..612fd441b225 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -1274,7 +1274,8 @@ 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;
}
--
1.7.10.4
next prev parent reply other threads:[~2014-05-06 7:03 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-06 7:05 [Patch Part3 V2 00/21] Enable support of Intel DMAR device hotplug Jiang Liu
2014-05-06 7:05 ` Jiang Liu [this message]
2014-05-06 7:05 ` [Patch Part3 V2 02/21] iommu/vt-d: use correct domain id to flush virtual machine domains Jiang Liu
2014-05-06 7:05 ` [Patch Part3 V2 03/21] iommu/vt-d: introduce helper functions to improve code readability Jiang Liu
2014-05-06 7:05 ` [Patch Part3 V2 04/21] iommu/vt-d: introduce helper functions to make code symmetric for readability Jiang Liu
2014-05-06 7:05 ` [Patch Part3 V2 05/21] iommu/vt-d: only dynamically allocate domain id for virtual domains Jiang Liu
2014-05-06 7:05 ` [Patch Part3 V2 06/21] iommu/vt-d: fix possible invalid memory access caused by free_dmar_iommu() Jiang Liu
2014-05-06 7:05 ` [Patch Part3 V2 07/21] iommu/vt-d: avoid freeing virtual machine domain in free_dmar_iommu() Jiang Liu
2014-05-06 7:05 ` [Patch Part3 V2 08/21] iommu/VT-d: simplify include/linux/dmar.h Jiang Liu
2014-05-06 7:05 ` [Patch Part3 V2 09/21] iommu/vt-d: change iommu_enable/disable_translation to return void Jiang Liu
2014-05-06 7:05 ` [Patch Part3 V2 10/21] iommu/vt-d: simplify intel_unmap_sg() and kill duplicated code Jiang Liu
2014-05-06 7:05 ` [Patch Part3 V2 11/21] iommu/vt-d: introduce helper domain_pfn_within_range() to simplify code Jiang Liu
2014-05-06 7:05 ` [Patch Part3 V2 12/21] iommu/vt-d: introduce helper function iova_size() to improve code readability Jiang Liu
2014-05-06 7:05 ` [Patch Part3 V2 13/21] iommu/vt-d: fix bug in computing domain's iommu_snooping flag Jiang Liu
2014-05-06 7:05 ` [Patch Part3 V2 14/21] IOMMU/vt-d: introduce helper function dmar_walk_resources() Jiang Liu
2014-05-06 7:05 ` [Patch Part3 V2 15/21] iommu/vt-d: dynamically allocate and free seq_id for DMAR units Jiang Liu
2014-05-06 7:05 ` [Patch Part3 V2 16/21] iommu/vt-d: implement DMAR unit hotplug framework Jiang Liu
2014-05-06 7:05 ` [Patch Part3 V2 17/21] iommu/vt-d: search _DSM method for DMAR hotplug Jiang Liu
2014-05-06 7:05 ` [Patch Part3 V2 18/21] iommu/vt-d: enhance intel_irq_remapping driver to support DMAR unit hotplug Jiang Liu
2014-05-06 7:05 ` [Patch Part3 V2 19/21] iommu/vt-d: enhance error recovery in function intel_enable_irq_remapping() Jiang Liu
2014-05-06 7:05 ` [Patch Part3 V2 20/21] iommu/vt-d: enhance intel-iommu driver to support DMAR unit hotplug Jiang Liu
2014-05-06 7:05 ` [Patch Part3 V2 21/21] pci, ACPI, iommu: enhance pci_root to support DMAR device hotplug Jiang Liu
2014-05-19 9:23 ` [Patch Part3 V2 00/21] Enable support of Intel " Joerg Roedel
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