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| author |   Jason Gunthorpe <jgg@nvidia.com> | 2025-07-14 12:50:22 +0800 |
|---|---|---|
| committer |   Will Deacon <will@kernel.org> | 2025-07-14 11:18:03 +0100 |
| commit | 5c3687d5789cfff8d285a2c76bceb47f145bf01f (patch) | |
| tree | 7fb1296859a536deb3f02dad329dc43570193298 | |
| parent | iommu/vt-d: Fold domain_exit() into intel_iommu_domain_free() (diff) | |
| download | wireguard-linux-5c3687d5789cfff8d285a2c76bceb47f145bf01f.tar.xz wireguard-linux-5c3687d5789cfff8d285a2c76bceb47f145bf01f.zip | |
iommu/vt-d: Do not wipe out the page table NID when devices detach
The NID is used to control which NUMA node memory for the page table is
allocated it from. It should be a permanent property of the page table
when it was allocated and not change during attach/detach of devices.
Reviewed-by: Wei Wang <wei.w.wang@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/3-v3-dbbe6f7e7ae3+124ffe-vtd_prep_jgg@nvidia.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Fixes: 7c204426b818 ("iommu/vt-d: Add domain_alloc_paging support")
Link: https://lore.kernel.org/r/20250714045028.958850-6-baolu.lu@linux.intel.com
Signed-off-by: Will Deacon <will@kernel.org>
| -rw-r--r-- | drivers/iommu/intel/iommu.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index 8521566ccf9b..8c99f8bf2065 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -1391,7 +1391,6 @@ void domain_detach_iommu(struct dmar_domain *domain, struct intel_iommu *iommu) if (--info->refcnt == 0) { ida_free(&iommu->domain_ida, info->did); xa_erase(&domain->iommu_array, iommu->seq_id); - domain->nid = NUMA_NO_NODE; kfree(info); } } |