diff mbox series

[v6,6/9] vfio: Reverse test on vfio_get_xlat_addr()

Message ID 20240514153130.394307-7-clg@redhat.com
State New
Headers show
Series vfio: Improve error reporting (part 2 | expand

Commit Message

Cédric Le Goater May 14, 2024, 3:31 p.m. UTC 
It will simplify the changes coming after.

Reviewed-by: Avihai Horon <avihaih@nvidia.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
---

 Changes in v6:

 - Modified title  (Avihai)
 - vfio_iommu_map_dirty_notify() : Modified goto label  (Avihai)
 
 hw/vfio/common.c | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

Comments

Eric Auger May 15, 2024, 9:22 a.m. UTC | #1 
On 5/14/24 17:31, Cédric Le Goater wrote:
> It will simplify the changes coming after.
> 
> Reviewed-by: Avihai Horon <avihaih@nvidia.com>
> Signed-off-by: Cédric Le Goater <clg@redhat.com>
> ---
> 
>  Changes in v6:
> 
>  - Modified title  (Avihai)
>  - vfio_iommu_map_dirty_notify() : Modified goto label  (Avihai)
>  
>  hw/vfio/common.c | 22 +++++++++++++---------
>  1 file changed, 13 insertions(+), 9 deletions(-)
> 
> diff --git a/hw/vfio/common.c b/hw/vfio/common.c
> index ed5ee6349ced78b3bde68d2ee506f78ba1a9dd9c..4e2ef3d3034e72aa6a546bcb9ea1f31a0bbd5b1b 100644
> --- a/hw/vfio/common.c
> +++ b/hw/vfio/common.c
> @@ -1224,16 +1224,20 @@ static void vfio_iommu_map_dirty_notify(IOMMUNotifier *n, IOMMUTLBEntry *iotlb)
>      }
>  
>      rcu_read_lock();
> -    if (vfio_get_xlat_addr(iotlb, NULL, &translated_addr, NULL)) {
> -        ret = vfio_get_dirty_bitmap(bcontainer, iova, iotlb->addr_mask + 1,
> -                                    translated_addr);
> -        if (ret) {
> -            error_report("vfio_iommu_map_dirty_notify(%p, 0x%"HWADDR_PRIx", "
> -                         "0x%"HWADDR_PRIx") = %d (%s)",
> -                         bcontainer, iova, iotlb->addr_mask + 1, ret,
> -                         strerror(-ret));
> -        }
> +    if (!vfio_get_xlat_addr(iotlb, NULL, &translated_addr, NULL)) {
> +        goto out_unlock;
>      }
> +
> +    ret = vfio_get_dirty_bitmap(bcontainer, iova, iotlb->addr_mask + 1,
> +                                translated_addr);
> +    if (ret) {
> +        error_report("vfio_iommu_map_dirty_notify(%p, 0x%"HWADDR_PRIx", "
> +                     "0x%"HWADDR_PRIx") = %d (%s)",
> +                     bcontainer, iova, iotlb->addr_mask + 1, ret,
> +                     strerror(-ret));
> +    }
> +
> +out_unlock:
>      rcu_read_unlock();
>  
>  out:
Reviewed-by: Eric Auger <eric.auger@redhat.com>

Eric
diff mbox series

Patch

diff --git a/hw/vfio/common.c b/hw/vfio/common.c
index ed5ee6349ced78b3bde68d2ee506f78ba1a9dd9c..4e2ef3d3034e72aa6a546bcb9ea1f31a0bbd5b1b 100644
--- a/hw/vfio/common.c
+++ b/hw/vfio/common.c
@@ -1224,16 +1224,20 @@  static void vfio_iommu_map_dirty_notify(IOMMUNotifier *n, IOMMUTLBEntry *iotlb)
     }
 
     rcu_read_lock();
-    if (vfio_get_xlat_addr(iotlb, NULL, &translated_addr, NULL)) {
-        ret = vfio_get_dirty_bitmap(bcontainer, iova, iotlb->addr_mask + 1,
-                                    translated_addr);
-        if (ret) {
-            error_report("vfio_iommu_map_dirty_notify(%p, 0x%"HWADDR_PRIx", "
-                         "0x%"HWADDR_PRIx") = %d (%s)",
-                         bcontainer, iova, iotlb->addr_mask + 1, ret,
-                         strerror(-ret));
-        }
+    if (!vfio_get_xlat_addr(iotlb, NULL, &translated_addr, NULL)) {
+        goto out_unlock;
     }
+
+    ret = vfio_get_dirty_bitmap(bcontainer, iova, iotlb->addr_mask + 1,
+                                translated_addr);
+    if (ret) {
+        error_report("vfio_iommu_map_dirty_notify(%p, 0x%"HWADDR_PRIx", "
+                     "0x%"HWADDR_PRIx") = %d (%s)",
+                     bcontainer, iova, iotlb->addr_mask + 1, ret,
+                     strerror(-ret));
+    }
+
+out_unlock:
     rcu_read_unlock();
 
 out: