diff mbox series

[v5,23/26] vhost: add support for VDUSE IOTLB update event

Message ID 20230606081852.71003-24-maxime.coquelin@redhat.com (mailing list archive)
State Accepted, archived
Delegated to: Maxime Coquelin
Headers
Series Add VDUSE support to Vhost library |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Maxime Coquelin June 6, 2023, 8:18 a.m. UTC 
  This patch adds support for VDUSE_UPDATE_IOTLB event
handling, which consists in invaliding IOTLB entries for
the range specified in the request.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
---
 lib/vhost/vduse.c | 7 +++++++
 1 file changed, 7 insertions(+)
diff mbox series

Patch

diff --git a/lib/vhost/vduse.c b/lib/vhost/vduse.c
index 3bf65d4b8b..110654ec68 100644
--- a/lib/vhost/vduse.c
+++ b/lib/vhost/vduse.c
@@ -179,6 +179,13 @@  vduse_events_handler(int fd, void *arg, int *remove __rte_unused)
 		dev->status = req.s.status;
 		resp.result = VDUSE_REQ_RESULT_OK;
 		break;
+	case VDUSE_UPDATE_IOTLB:
+		VHOST_LOG_CONFIG(dev->ifname, INFO, "\tIOVA range: %" PRIx64 " - %" PRIx64 "\n",
+				(uint64_t)req.iova.start, (uint64_t)req.iova.last);
+		vhost_user_iotlb_cache_remove(dev, req.iova.start,
+				req.iova.last - req.iova.start + 1);
+		resp.result = VDUSE_REQ_RESULT_OK;
+		break;
 	default:
 		resp.result = VDUSE_REQ_RESULT_FAILED;
 		break;