diff mbox series

[16/16] vfio: account iommu allocations

Message ID 20231128204938.1453583-17-pasha.tatashin@soleen.com (mailing list archive)
State Not Applicable
Headers show
Series IOMMU memory observability | expand

Checks

Context Check Description
netdev/tree_selection success Not a local patch

Commit Message

Pasha Tatashin Nov. 28, 2023, 8:49 p.m. UTC 
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(-)

Comments

Jason Gunthorpe Nov. 28, 2023, 11:53 p.m. UTC | #1 
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
Pasha Tatashin Nov. 29, 2023, 9:36 p.m. UTC | #2 
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 mbox series

Patch

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);