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From: Jason Wang <jasowang@redhat.com>
To: qemu-devel@nongnu.org,
peter.maydell@linaro.org
Subject: [PULL V3 14/15] vdpa: Never set log_base addr if SVQ is enabled
Date: Tue, 15 Mar 2022 14:14:19 +0800
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Cc: =?UTF-8?q?Eugenio=20P=C3=A9rez?= <eperezma@redhat.com>,
Jason Wang <jasowang@redhat.com>, "Michael S . Tsirkin" <mst@redhat.com>
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From: Eugenio P=C3=A9rez <eperezma@redhat.com>
Setting the log address would make the device start reporting invalid
dirty memory because the SVQ vrings are located in qemu's memory.
Signed-off-by: Eugenio P=C3=A9rez <eperezma@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
hw/virtio/vhost-vdpa.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c
index 93dbe10..89d59f8 100644
--- a/hw/virtio/vhost-vdpa.c
+++ b/hw/virtio/vhost-vdpa.c
@@ -1090,7 +1090,8 @@ static int vhost_vdpa_dev_start(struct vhost_dev *dev=
, bool started)
static int vhost_vdpa_set_log_base(struct vhost_dev *dev, uint64_t base,
struct vhost_log *log)
{
- if (vhost_vdpa_one_time_request(dev)) {
+ struct vhost_vdpa *v =3D dev->opaque;
+ if (v->shadow_vqs_enabled || vhost_vdpa_one_time_request(dev)) {
return 0;
}
=20
--=20
2.7.4