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| author | Yi Liu <yi.l.liu@intel.com> | 2026-01-22 09:48:53 +0800 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2026-01-22 09:20:29 +0100 |
| commit | 04b1b069f151e793767755f58b51670bff00cbc1 (patch) | |
| tree | 7e4f9176a9d4f5dade1aec4cefd59ae4861f292e /drivers/iommu/intel | |
| parent | 22d169bdd2849fe6bd18c2643742e1c02be6451c (diff) | |
| download | lwn-04b1b069f151e793767755f58b51670bff00cbc1.tar.gz lwn-04b1b069f151e793767755f58b51670bff00cbc1.zip | |
iommu/vt-d: Flush piotlb for SVM and Nested domain
Besides the paging domains that use FS, SVM and Nested domains need to
use piotlb invalidation descriptor as well.
Fixes: b33125296b50 ("iommu/vt-d: Create unique domain ops for each stage")
Cc: stable@vger.kernel.org
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20251223065824.6164-1-yi.l.liu@intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'drivers/iommu/intel')
| -rw-r--r-- | drivers/iommu/intel/cache.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/iommu/intel/cache.c b/drivers/iommu/intel/cache.c index 265e7290256b..385ae5cfb30d 100644 --- a/drivers/iommu/intel/cache.c +++ b/drivers/iommu/intel/cache.c @@ -363,6 +363,13 @@ static void qi_batch_add_pasid_dev_iotlb(struct intel_iommu *iommu, u16 sid, u16 qi_batch_increment_index(iommu, batch); } +static bool intel_domain_use_piotlb(struct dmar_domain *domain) +{ + return domain->domain.type == IOMMU_DOMAIN_SVA || + domain->domain.type == IOMMU_DOMAIN_NESTED || + intel_domain_is_fs_paging(domain); +} + static void cache_tag_flush_iotlb(struct dmar_domain *domain, struct cache_tag *tag, unsigned long addr, unsigned long pages, unsigned long mask, int ih) @@ -370,7 +377,7 @@ static void cache_tag_flush_iotlb(struct dmar_domain *domain, struct cache_tag * struct intel_iommu *iommu = tag->iommu; u64 type = DMA_TLB_PSI_FLUSH; - if (intel_domain_is_fs_paging(domain)) { + if (intel_domain_use_piotlb(domain)) { qi_batch_add_piotlb(iommu, tag->domain_id, tag->pasid, addr, pages, ih, domain->qi_batch); return; |