[PATCH V2] vdpa_sim: reset must not run

[Steve Sistare]

vdpasim_do_reset sets running to true, which is wrong, as it allows
vdpasim_kick_vq to post work requests before the device has been
configured.  To fix, do not set running until VIRTIO_CONFIG_S_DRIVER_OK
is set.

Fixes: 0c89e2a3a9d0 ("vdpa_sim: Implement suspend vdpa op")
Signed-off-by: Steve Sistare <steven.sist...@oracle.com>
Reviewed-by: Eugenio Pérez <epere...@redhat.com>
Acked-by: Jason Wang <jasow...@redhat.com>
---
 drivers/vdpa/vdpa_sim/vdpa_sim.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c
index be2925d0d283..18584ce70bf0 100644
--- a/drivers/vdpa/vdpa_sim/vdpa_sim.c
+++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c
@@ -160,7 +160,7 @@ static void vdpasim_do_reset(struct vdpasim *vdpasim, u32 
flags)
                }
        }
 
-       vdpasim->running = true;
+       vdpasim->running = false;
        spin_unlock(&vdpasim->iommu_lock);
 
        vdpasim->features = 0;
@@ -483,6 +483,7 @@ static void vdpasim_set_status(struct vdpa_device *vdpa, u8 
status)
 
        mutex_lock(&vdpasim->mutex);
        vdpasim->status = status;
+       vdpasim->running = (status & VIRTIO_CONFIG_S_DRIVER_OK) != 0;
        mutex_unlock(&vdpasim->mutex);
 }
 
-- 
2.39.3