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| author | Pasha Tatashin <pasha.tatashin@soleen.com> | 2023-11-30 20:09:00 +0000 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2023-12-04 14:41:36 -0700 |
| commit | 160912fc3d4ae492954c25cd78b90083869f0011 (patch) | |
| tree | cc746f9f67af18a7aca797aec7c24408b6f83d48 /drivers/vfio | |
| parent | 33cc938e65a98f1d29d0a18403dbbee050dcad9a (diff) | |
| download | lwn-160912fc3d4ae492954c25cd78b90083869f0011.tar.gz lwn-160912fc3d4ae492954c25cd78b90083869f0011.zip | |
vfio/type1: account iommu allocations
iommu allocations should be accounted in order to allow admins to
monitor and limit the amount of iommu memory.
Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20231130200900.2320829-1-pasha.tatashin@soleen.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers/vfio')
| -rw-r--r-- | drivers/vfio/vfio_iommu_type1.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c index eacd6ec04de5..b2854d7939ce 100644 --- a/drivers/vfio/vfio_iommu_type1.c +++ b/drivers/vfio/vfio_iommu_type1.c @@ -1436,7 +1436,7 @@ static int vfio_iommu_map(struct vfio_iommu *iommu, dma_addr_t iova, list_for_each_entry(d, &iommu->domain_list, next) { ret = iommu_map(d->domain, iova, (phys_addr_t)pfn << PAGE_SHIFT, npage << PAGE_SHIFT, prot | IOMMU_CACHE, - GFP_KERNEL); + GFP_KERNEL_ACCOUNT); if (ret) goto unwind; @@ -1750,7 +1750,8 @@ static int vfio_iommu_replay(struct vfio_iommu *iommu, } ret = iommu_map(domain->domain, iova, phys, size, - dma->prot | IOMMU_CACHE, GFP_KERNEL); + dma->prot | IOMMU_CACHE, + GFP_KERNEL_ACCOUNT); if (ret) { if (!dma->iommu_mapped) { vfio_unpin_pages_remote(dma, iova, @@ -1845,7 +1846,8 @@ static void vfio_test_domain_fgsp(struct vfio_domain *domain, struct list_head * continue; ret = iommu_map(domain->domain, start, page_to_phys(pages), PAGE_SIZE * 2, - IOMMU_READ | IOMMU_WRITE | IOMMU_CACHE, GFP_KERNEL); + IOMMU_READ | IOMMU_WRITE | IOMMU_CACHE, + GFP_KERNEL_ACCOUNT); if (!ret) { size_t unmapped = iommu_unmap(domain->domain, start, PAGE_SIZE); |