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[PATCH v3 08/10] vdpa-dev: implement the get_features interface
From: |
Longpeng(Mike) |
Subject: |
[PATCH v3 08/10] vdpa-dev: implement the get_features interface |
Date: |
Sat, 19 Mar 2022 15:20:10 +0800 |
From: Longpeng <longpeng2@huawei.com>
Implements the .get_features interface.
Signed-off-by: Longpeng <longpeng2@huawei.com>
---
hw/virtio/vdpa-dev.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/hw/virtio/vdpa-dev.c b/hw/virtio/vdpa-dev.c
index f28d3ed5f9..9536982061 100644
--- a/hw/virtio/vdpa-dev.c
+++ b/hw/virtio/vdpa-dev.c
@@ -212,7 +212,14 @@ static uint64_t
vhost_vdpa_device_get_features(VirtIODevice *vdev,
uint64_t features,
Error **errp)
{
- return (uint64_t)-1;
+ VhostVdpaDevice *s = VHOST_VDPA_DEVICE(vdev);
+ uint64_t backend_features = s->dev.features;
+
+ if (!virtio_has_feature(features, VIRTIO_F_IOMMU_PLATFORM)) {
+ virtio_clear_feature(&backend_features, VIRTIO_F_IOMMU_PLATFORM);
+ }
+
+ return backend_features;
}
static void vhost_vdpa_device_set_status(VirtIODevice *vdev, uint8_t status)
--
2.23.0
- [PATCH v3 00/10] add generic vDPA device support, Longpeng(Mike), 2022/03/19
- [PATCH v3 01/10] virtio: get class_id and pci device id by the virtio id, Longpeng(Mike), 2022/03/19
- [PATCH v3 05/10] vdpa-dev: implement the realize interface, Longpeng(Mike), 2022/03/19
- [PATCH v3 04/10] vdpa-dev: implement the instance_init/class_init interface, Longpeng(Mike), 2022/03/19
- [PATCH v3 02/10] update linux headers, Longpeng(Mike), 2022/03/19
- [PATCH v3 08/10] vdpa-dev: implement the get_features interface,
Longpeng(Mike) <=
- [PATCH v3 06/10] vdpa-dev: implement the unrealize interface, Longpeng(Mike), 2022/03/19
- [PATCH v3 03/10] vdpa: add the infrastructure of vdpa-dev, Longpeng(Mike), 2022/03/19
- [PATCH v3 10/10] vdpa-dev: mark the device as unmigratable, Longpeng(Mike), 2022/03/19
- [PATCH v3 07/10] vdpa-dev: implement the get_config/set_config interface, Longpeng(Mike), 2022/03/19
- [PATCH v3 09/10] vdpa-dev: implement the set_status interface, Longpeng(Mike), 2022/03/19
- Re: [PATCH v3 00/10] add generic vDPA device support, Stefano Garzarella, 2022/03/28