diff mbox series

[15/16] vhost-vdpa: account iommu allocations

Message ID 20231128204938.1453583-16-pasha.tatashin@soleen.com (mailing list archive)
State Accepted
Commit ab78ffe1ff7d17102972348bb9b1a16ec2696a2b
Headers show
Series IOMMU memory observability | expand

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/vhost/vdpa.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

Michael S. Tsirkin Dec. 25, 2023, 4:09 p.m. UTC | #1 
On Tue, Nov 28, 2023 at 08:49:37PM +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>


Acked-by: Michael S. Tsirkin <mst@redhat.com>


> ---
>  drivers/vhost/vdpa.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
> index da7ec77cdaff..a51c69c078d9 100644
> --- a/drivers/vhost/vdpa.c
> +++ b/drivers/vhost/vdpa.c
> @@ -968,7 +968,8 @@ static int vhost_vdpa_map(struct vhost_vdpa *v, struct vhost_iotlb *iotlb,
>  			r = ops->set_map(vdpa, asid, iotlb);
>  	} else {
>  		r = iommu_map(v->domain, iova, pa, size,
> -			      perm_to_iommu_flags(perm), GFP_KERNEL);
> +			      perm_to_iommu_flags(perm),
> +			      GFP_KERNEL_ACCOUNT);
>  	}
>  	if (r) {
>  		vhost_iotlb_del_range(iotlb, iova, iova + size - 1);
> -- 
> 2.43.0.rc2.451.g8631bc7472-goog
Pasha Tatashin Dec. 26, 2023, 6:23 p.m. UTC | #2 
On Mon, Dec 25, 2023 at 11:09 AM Michael S. Tsirkin <mst@redhat.com> wrote:
>
> On Tue, Nov 28, 2023 at 08:49:37PM +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>
>
>
> Acked-by: Michael S. Tsirkin <mst@redhat.com>

Thank you,
Pasha
diff mbox series

Patch

diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index da7ec77cdaff..a51c69c078d9 100644
--- a/drivers/vhost/vdpa.c
+++ b/drivers/vhost/vdpa.c
@@ -968,7 +968,8 @@  static int vhost_vdpa_map(struct vhost_vdpa *v, struct vhost_iotlb *iotlb,
 			r = ops->set_map(vdpa, asid, iotlb);
 	} else {
 		r = iommu_map(v->domain, iova, pa, size,
-			      perm_to_iommu_flags(perm), GFP_KERNEL);
+			      perm_to_iommu_flags(perm),
+			      GFP_KERNEL_ACCOUNT);
 	}
 	if (r) {
 		vhost_iotlb_del_range(iotlb, iova, iova + size - 1);