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| author | Eugenio Pérez <eperezma@redhat.com> | 2023-03-03 18:24:34 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2023-03-07 12:38:59 -0500 |
| commit | d83b4945805d68f47742f70bba2ea4d5c9880dc8 (patch) | |
| tree | 2fd4ae0efef8ee1292303ea41dd5e9e4a10d4c08 /hw/virtio | |
| parent | b2765243863cf93d2bab1a1c2e14d6dc61981a6b (diff) | |
| download | qemu-d83b4945805d68f47742f70bba2ea4d5c9880dc8.zip qemu-d83b4945805d68f47742f70bba2ea4d5c9880dc8.tar.gz qemu-d83b4945805d68f47742f70bba2ea4d5c9880dc8.tar.bz2 | |
vdpa: Negotiate _F_SUSPEND feature
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>
Diffstat (limited to 'hw/virtio')
| -rw-r--r-- | hw/virtio/vhost-vdpa.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c index 108cd63..5cfa9d5 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)) { |