2023-12-26 18:28:45

by Pasha Tatashin

Subject: [PATCH v2] vhost-vdpa: 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 <[email protected]>
Acked-by: Michael S. Tsirkin <[email protected]>
---
drivers/vhost/vdpa.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

Changelog:

v1:
This patch is spinned of from the series:
https://lore.kernel.org/all/[email protected]

v2:
- Synced with v6.7-rc7
- Added Acked-by Michael S. Tsirkin.

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);
--
2.43.0.472.g3155946c3a-goog

2023-12-26 20:19:47

by David Rientjes

Subject: Re: [PATCH v2] vhost-vdpa: account iommu allocations

On Tue, 26 Dec 2023, 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 <[email protected]>
> Acked-by: Michael S. Tsirkin <[email protected]>

Acked-by: David Rientjes <[email protected]>