Stefano Garzarella
2022-Jun-21 15:12 UTC
[PATCH] vdpa_sim: use max_iotlb_entries as a limit in vhost_iotlb_init
Commit bda324fd037a ("vdpasim: control virtqueue support") changed
the allocation of iotlbs calling vhost_iotlb_init() for each address
space, instead of vhost_iotlb_alloc().
With this change we forgot to use the limit we had introduced with
the `max_iotlb_entries` module parameter.
Fixes: bda324fd037a ("vdpasim: control virtqueue support")
Cc: gautam.dawar at xilinx.com
Signed-off-by: Stefano Garzarella <sgarzare at redhat.com>
---
drivers/vdpa/vdpa_sim/vdpa_sim.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c
index 0f2865899647..3e81532c01cb 100644
--- a/drivers/vdpa/vdpa_sim/vdpa_sim.c
+++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c
@@ -33,7 +33,7 @@ MODULE_PARM_DESC(batch_mapping, "Batched mapping 1
-Enable; 0 - Disable");
static int max_iotlb_entries = 2048;
module_param(max_iotlb_entries, int, 0444);
MODULE_PARM_DESC(max_iotlb_entries,
- "Maximum number of iotlb entries. 0 means unlimited. (default:
2048)");
+ "Maximum number of iotlb entries for each address space. 0 means
unlimited. (default: 2048)");
#define VDPASIM_QUEUE_ALIGN PAGE_SIZE
#define VDPASIM_QUEUE_MAX 256
@@ -291,7 +291,7 @@ struct vdpasim *vdpasim_create(struct vdpasim_dev_attr
*dev_attr)
goto err_iommu;
for (i = 0; i < vdpasim->dev_attr.nas; i++)
- vhost_iotlb_init(&vdpasim->iommu[i], 0, 0);
+ vhost_iotlb_init(&vdpasim->iommu[i], max_iotlb_entries, 0);
vdpasim->buffer = kvmalloc(dev_attr->buffer_size, GFP_KERNEL);
if (!vdpasim->buffer)
--
2.36.1