diff options
| author | Yi Liu <yi.l.liu@intel.com> | 2024-02-19 19:15:55 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-03-01 13:41:56 +0100 |
| commit | 6eb19beda2462e4cbbf9d4d29c5cd832fa6bfa94 (patch) | |
| tree | 53e85e6caf945b9393ffdf03562c21fe4b5d05fb | |
| parent | 57e3b295c73d8a1032c65b7f8a4bb68a5140afdf (diff) | |
iommu/vt-d: Update iotlb in nested domain attach
[ Upstream commit 29e10487d6df050afeee886b7c1da208f389cb5b ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -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 897159dba47d..0cc6e08e12c1 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -540,8 +540,6 @@ 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) { @@ -1362,7 +1360,7 @@ 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 ce030c5b5772..70ac2b989127 100644 --- a/drivers/iommu/intel/iommu.h +++ b/drivers/iommu/intel/iommu.h @@ -888,6 +888,7 @@ 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 b5a5563ab32c..694c1c4223f6 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; } |