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| author |  Yi Liu <yi.l.liu@intel.com>
| 2024-02-19 19:15:55 +0800 |
|---|---|---|
| committer |  Joerg Roedel <jroedel@suse.de>
| 2024-02-21 10:28:44 +0100 |
| commit | 29e10487d6df050afeee886b7c1da208f389cb5b (patch) | |
| tree | 0d41b262fe300174a9c8d8350141a1c8af5dbd5e /drivers/iommu/intel | |
| parent | iommu/vt-d: Add missing iotlb flush for parent domain (diff) | |
| download | linux-29e10487d6df050afeee886b7c1da208f389cb5b.tar.gz linux-29e10487d6df050afeee886b7c1da208f389cb5b.tar.bz2 linux-29e10487d6df050afeee886b7c1da208f389cb5b.zip | |
iommu/vt-d: Update iotlb in nested domain attach
Should call domain_update_iotlb() to update the has_iotlb_device flag
of the domain after attaching device to nested domain. Without it, this
flag is not set properly and would result in missing device TLB flush.
Fixes: 9838f2bb6b6b ("iommu/vt-d: Set the nested domain to a device")
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20240208082307.15759-5-yi.l.liu@intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/intel')
| -rw-r--r-- | drivers/iommu/intel/iommu.c | 4 | ||||
| -rw-r--r-- | drivers/iommu/intel/iommu.h | 1 | ||||
| -rw-r--r-- | drivers/iommu/intel/nested.c | 2 |
3 files changed, 4 insertions, 3 deletions
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index e3dbcae95975..711c3e3fe095 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -396,8 +396,6 @@ static int domain_update_device_node(struct dmar_domain *domain) return nid; } -static void domain_update_iotlb(struct dmar_domain *domain); - /* Return the super pagesize bitmap if supported. */ static unsigned long domain_super_pgsize_bitmap(struct dmar_domain *domain) { @@ -1218,7 +1216,7 @@ domain_lookup_dev_info(struct dmar_domain *domain, return NULL; } -static void domain_update_iotlb(struct dmar_domain *domain) +void domain_update_iotlb(struct dmar_domain *domain) { struct dev_pasid_info *dev_pasid; struct device_domain_info *info; diff --git a/drivers/iommu/intel/iommu.h b/drivers/iommu/intel/iommu.h index 9b27edb73aa9..4145c04cb1c6 100644 --- a/drivers/iommu/intel/iommu.h +++ b/drivers/iommu/intel/iommu.h @@ -1066,6 +1066,7 @@ int qi_submit_sync(struct intel_iommu *iommu, struct qi_desc *desc, */ #define QI_OPT_WAIT_DRAIN BIT(0) +void domain_update_iotlb(struct dmar_domain *domain); int domain_attach_iommu(struct dmar_domain *domain, struct intel_iommu *iommu); void domain_detach_iommu(struct dmar_domain *domain, struct intel_iommu *iommu); void device_block_translation(struct device *dev); diff --git a/drivers/iommu/intel/nested.c b/drivers/iommu/intel/nested.c index 6a75f6eb18f1..d5af5925a31c 100644 --- a/drivers/iommu/intel/nested.c +++ b/drivers/iommu/intel/nested.c @@ -65,6 +65,8 @@ static int intel_nested_attach_dev(struct iommu_domain *domain, list_add(&info->link, &dmar_domain->devices); spin_unlock_irqrestore(&dmar_domain->lock, flags); + domain_update_iotlb(dmar_domain); + return 0; } |