linux-kernel - [PATCH] vhost_vdpa: fix unmap process in no-batch mode

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Message-Id: <20230410150130.837691-1-lulu@redhat.com>
Date:   Mon, 10 Apr 2023 23:01:30 +0800
From:   Cindy Lu <lulu@...hat.com>
To:     lulu@...hat.com, jasowang@...hat.com, mst@...hat.com,
        kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
        virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org
Subject: [PATCH] vhost_vdpa: fix unmap process in no-batch mode

While using the no-batch mode, the process will not begin with
VHOST_IOTLB_BATCH_BEGIN, so we need to add the
VHOST_IOTLB_INVALIDATE to get vhost_vdpa_as, the process is the
same as VHOST_IOTLB_UPDATE

Signed-off-by: Cindy Lu <lulu@...hat.com>
---
 drivers/vhost/vdpa.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index 7be9d9d8f01c..32636a02a0ab 100644
--- a/drivers/vhost/vdpa.c
+++ b/drivers/vhost/vdpa.c
@@ -1074,6 +1074,7 @@ static int vhost_vdpa_process_iotlb_msg(struct vhost_dev *dev, u32 asid,
 		goto unlock;
 
 	if (msg->type == VHOST_IOTLB_UPDATE ||
+	    msg->type == VHOST_IOTLB_INVALIDATE ||
 	    msg->type == VHOST_IOTLB_BATCH_BEGIN) {
 		as = vhost_vdpa_find_alloc_as(v, asid);
 		if (!as) {
-- 
2.34.3