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iommu/amd/pgtbl_v2: Take protection domain lock before invalidating TLB

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[ Upstream commit 016991606a ]

Commit c7fc12354b ("iommu/amd/pgtbl_v2: Invalidate updated page ranges
only") missed to take domain lock before calling
amd_iommu_domain_flush_pages(). Fix this by taking protection domain
lock before calling TLB invalidation function.

Fixes: c7fc12354b ("iommu/amd/pgtbl_v2: Invalidate updated page ranges only")
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20241030063556.6104-2-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Vasant Hegde
2024-10-30 06:35:45 +00:00
committed by Greg Kroah-Hartman
parent 6be57617a3
commit e72d62a340
1 changed files with 3 additions and 0 deletions
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drivers/iommu/amd/io_pgtable_v2.c
+3
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@@ -268,8 +268,11 @@ static int iommu_v2_map_pages(struct io_pgtable_ops *ops, unsigned long iova,
out:
if (updated) {
struct protection_domain *pdom = io_pgtable_ops_to_domain(ops);
unsigned long flags;
spin_lock_irqsave(&pdom->lock, flags);
amd_iommu_domain_flush_pages(pdom, o_iova, size);
spin_unlock_irqrestore(&pdom->lock, flags);
}
if (mapped)