diff mbox series

[PULL,15/73] vdpa: Negotiate _F_SUSPEND feature

Message ID d83b4945805d68f47742f70bba2ea4d5c9880dc8.1678237635.git.mst@redhat.com
State New
Headers show
Series [PULL,01/73] cryptodev: Introduce cryptodev.json | expand

Commit Message

Michael S. Tsirkin March 8, 2023, 1:11 a.m. UTC 
From: Eugenio Pérez <eperezma@redhat.com>

This is needed for qemu to know it can suspend the device to retrieve
its status and enable SVQ with it, so all the process is transparent to
the guest.

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20230303172445.1089785-4-eperezma@redhat.com>
Tested-by: Lei Yang <leiyang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 hw/virtio/vhost-vdpa.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c
index 108cd63289..5cfa9d5d27 100644
--- a/hw/virtio/vhost-vdpa.c
+++ b/hw/virtio/vhost-vdpa.c
@@ -659,7 +659,8 @@  static int vhost_vdpa_set_backend_cap(struct vhost_dev *dev)
     uint64_t features;
     uint64_t f = 0x1ULL << VHOST_BACKEND_F_IOTLB_MSG_V2 |
         0x1ULL << VHOST_BACKEND_F_IOTLB_BATCH |
-        0x1ULL << VHOST_BACKEND_F_IOTLB_ASID;
+        0x1ULL << VHOST_BACKEND_F_IOTLB_ASID |
+        0x1ULL << VHOST_BACKEND_F_SUSPEND;
     int r;
 
     if (vhost_vdpa_call(dev, VHOST_GET_BACKEND_FEATURES, &features)) {