| Message ID | 20231128204938.1453583-17-pasha.tatashin@soleen.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | IOMMU memory observability | expand |
On Tue, Nov 28, 2023 at 08:49:38PM +0000, Pasha Tatashin wrote: > 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> > --- > drivers/vfio/vfio_iommu_type1.c | 8 +++++--- > 1 file changed, 5 insertions(+), 3 deletions(-) You should send the seperately and directly to Alex. Jason
On Tue, Nov 28, 2023 at 6:53 PM Jason Gunthorpe <jgg@ziepe.ca> wrote: > > On Tue, Nov 28, 2023 at 08:49:38PM +0000, Pasha Tatashin wrote: > > 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> > > --- > > drivers/vfio/vfio_iommu_type1.c | 8 +++++--- > > 1 file changed, 5 insertions(+), 3 deletions(-) > > You should send the seperately and directly to Alex. Thanks, I will. > > Jason
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);
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> --- drivers/vfio/vfio_iommu_type1.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)