patches for DPDK stable branches
 help / color / mirror / Atom feed
* [PATCH] vhost: fix unsafe vrings addresses modifications
@ 2022-01-27 11:09 Maxime Coquelin
  2022-02-17  7:32 ` Xia, Chenbo
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: Maxime Coquelin @ 2022-01-27 11:09 UTC (permalink / raw)
  To: dev, chenbo.xia, yuanx.wang, david.marchand; +Cc: stable, Maxime Coquelin

This patch adds missing protection around vring_invalidate
and translate_ring_addresses calls in vhost_user_iotlb_msg.

Fixes: eefac9536a90 ("vhost: postpone device creation until rings are mapped")
Cc: stable@dpdk.org

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
 lib/vhost/vhost_user.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/lib/vhost/vhost_user.c b/lib/vhost/vhost_user.c
index 5eb1dd6812..ae8513c465 100644
--- a/lib/vhost/vhost_user.c
+++ b/lib/vhost/vhost_user.c
@@ -2566,8 +2566,11 @@ vhost_user_iotlb_msg(struct virtio_net **pdev, struct VhostUserMsg *msg,
 			vhost_user_iotlb_cache_insert(vq, imsg->iova, vva,
 					len, imsg->perm);
 
-			if (is_vring_iotlb(dev, vq, imsg))
+			if (is_vring_iotlb(dev, vq, imsg)) {
+				rte_spinlock_lock(&vq->access_lock);
 				*pdev = dev = translate_ring_addresses(dev, i);
+				rte_spinlock_unlock(&vq->access_lock);
+			}
 		}
 		break;
 	case VHOST_IOTLB_INVALIDATE:
@@ -2580,8 +2583,11 @@ vhost_user_iotlb_msg(struct virtio_net **pdev, struct VhostUserMsg *msg,
 			vhost_user_iotlb_cache_remove(vq, imsg->iova,
 					imsg->size);
 
-			if (is_vring_iotlb(dev, vq, imsg))
+			if (is_vring_iotlb(dev, vq, imsg)) {
+				rte_spinlock_lock(&vq->access_lock);
 				vring_invalidate(dev, vq);
+				rte_spinlock_unlock(&vq->access_lock);
+			}
 		}
 		break;
 	default:
-- 
2.34.1


^ permalink raw reply	[flat|nested] 4+ messages in thread

* RE: [PATCH] vhost: fix unsafe vrings addresses modifications
  2022-01-27 11:09 [PATCH] vhost: fix unsafe vrings addresses modifications Maxime Coquelin
@ 2022-02-17  7:32 ` Xia, Chenbo
  2022-02-17  8:00 ` David Marchand
  2022-02-17  8:55 ` Maxime Coquelin
  2 siblings, 0 replies; 4+ messages in thread
From: Xia, Chenbo @ 2022-02-17  7:32 UTC (permalink / raw)
  To: Maxime Coquelin, dev, Wang, YuanX, david.marchand; +Cc: stable

> -----Original Message-----
> From: Maxime Coquelin <maxime.coquelin@redhat.com>
> Sent: Thursday, January 27, 2022 7:10 PM
> To: dev@dpdk.org; Xia, Chenbo <chenbo.xia@intel.com>; Wang, YuanX
> <yuanx.wang@intel.com>; david.marchand@redhat.com
> Cc: stable@dpdk.org; Maxime Coquelin <maxime.coquelin@redhat.com>
> Subject: [PATCH] vhost: fix unsafe vrings addresses modifications
> 
> This patch adds missing protection around vring_invalidate
> and translate_ring_addresses calls in vhost_user_iotlb_msg.
> 
> Fixes: eefac9536a90 ("vhost: postpone device creation until rings are mapped")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
> ---
>  lib/vhost/vhost_user.c | 10 ++++++++--
>  1 file changed, 8 insertions(+), 2 deletions(-)
> 
> diff --git a/lib/vhost/vhost_user.c b/lib/vhost/vhost_user.c
> index 5eb1dd6812..ae8513c465 100644
> --- a/lib/vhost/vhost_user.c
> +++ b/lib/vhost/vhost_user.c
> @@ -2566,8 +2566,11 @@ vhost_user_iotlb_msg(struct virtio_net **pdev, struct
> VhostUserMsg *msg,
>  			vhost_user_iotlb_cache_insert(vq, imsg->iova, vva,
>  					len, imsg->perm);
> 
> -			if (is_vring_iotlb(dev, vq, imsg))
> +			if (is_vring_iotlb(dev, vq, imsg)) {
> +				rte_spinlock_lock(&vq->access_lock);
>  				*pdev = dev = translate_ring_addresses(dev, i);
> +				rte_spinlock_unlock(&vq->access_lock);
> +			}
>  		}
>  		break;
>  	case VHOST_IOTLB_INVALIDATE:
> @@ -2580,8 +2583,11 @@ vhost_user_iotlb_msg(struct virtio_net **pdev, struct
> VhostUserMsg *msg,
>  			vhost_user_iotlb_cache_remove(vq, imsg->iova,
>  					imsg->size);
> 
> -			if (is_vring_iotlb(dev, vq, imsg))
> +			if (is_vring_iotlb(dev, vq, imsg)) {
> +				rte_spinlock_lock(&vq->access_lock);
>  				vring_invalidate(dev, vq);
> +				rte_spinlock_unlock(&vq->access_lock);
> +			}
>  		}
>  		break;
>  	default:
> --
> 2.34.1

Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH] vhost: fix unsafe vrings addresses modifications
  2022-01-27 11:09 [PATCH] vhost: fix unsafe vrings addresses modifications Maxime Coquelin
  2022-02-17  7:32 ` Xia, Chenbo
@ 2022-02-17  8:00 ` David Marchand
  2022-02-17  8:55 ` Maxime Coquelin
  2 siblings, 0 replies; 4+ messages in thread
From: David Marchand @ 2022-02-17  8:00 UTC (permalink / raw)
  To: Maxime Coquelin; +Cc: dev, Xia, Chenbo, Wang, YuanX, dpdk stable

On Thu, Jan 27, 2022 at 12:10 PM Maxime Coquelin
<maxime.coquelin@redhat.com> wrote:
>
> This patch adds missing protection around vring_invalidate
> and translate_ring_addresses calls in vhost_user_iotlb_msg.
>
> Fixes: eefac9536a90 ("vhost: postpone device creation until rings are mapped")
> Cc: stable@dpdk.org
>
> Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>


-- 
David Marchand


^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH] vhost: fix unsafe vrings addresses modifications
  2022-01-27 11:09 [PATCH] vhost: fix unsafe vrings addresses modifications Maxime Coquelin
  2022-02-17  7:32 ` Xia, Chenbo
  2022-02-17  8:00 ` David Marchand
@ 2022-02-17  8:55 ` Maxime Coquelin
  2 siblings, 0 replies; 4+ messages in thread
From: Maxime Coquelin @ 2022-02-17  8:55 UTC (permalink / raw)
  To: dev, chenbo.xia, yuanx.wang, david.marchand; +Cc: stable



On 1/27/22 12:09, Maxime Coquelin wrote:
> This patch adds missing protection around vring_invalidate
> and translate_ring_addresses calls in vhost_user_iotlb_msg.
> 
> Fixes: eefac9536a90 ("vhost: postpone device creation until rings are mapped")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
> ---
>   lib/vhost/vhost_user.c | 10 ++++++++--
>   1 file changed, 8 insertions(+), 2 deletions(-)
> 
> diff --git a/lib/vhost/vhost_user.c b/lib/vhost/vhost_user.c
> index 5eb1dd6812..ae8513c465 100644
> --- a/lib/vhost/vhost_user.c
> +++ b/lib/vhost/vhost_user.c
> @@ -2566,8 +2566,11 @@ vhost_user_iotlb_msg(struct virtio_net **pdev, struct VhostUserMsg *msg,
>   			vhost_user_iotlb_cache_insert(vq, imsg->iova, vva,
>   					len, imsg->perm);
>   
> -			if (is_vring_iotlb(dev, vq, imsg))
> +			if (is_vring_iotlb(dev, vq, imsg)) {
> +				rte_spinlock_lock(&vq->access_lock);
>   				*pdev = dev = translate_ring_addresses(dev, i);
> +				rte_spinlock_unlock(&vq->access_lock);
> +			}
>   		}
>   		break;
>   	case VHOST_IOTLB_INVALIDATE:
> @@ -2580,8 +2583,11 @@ vhost_user_iotlb_msg(struct virtio_net **pdev, struct VhostUserMsg *msg,
>   			vhost_user_iotlb_cache_remove(vq, imsg->iova,
>   					imsg->size);
>   
> -			if (is_vring_iotlb(dev, vq, imsg))
> +			if (is_vring_iotlb(dev, vq, imsg)) {
> +				rte_spinlock_lock(&vq->access_lock);
>   				vring_invalidate(dev, vq);
> +				rte_spinlock_unlock(&vq->access_lock);
> +			}
>   		}
>   		break;
>   	default:


Applied to dpdk-next-virtio/main.

Thanks,
Maxime


^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2022-02-17  8:55 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-01-27 11:09 [PATCH] vhost: fix unsafe vrings addresses modifications Maxime Coquelin
2022-02-17  7:32 ` Xia, Chenbo
2022-02-17  8:00 ` David Marchand
2022-02-17  8:55 ` Maxime Coquelin

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).