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[PATCH v3 03/14] vdpa: Negotiate _F_SUSPEND feature
From: |
Eugenio Pérez |
Subject: |
[PATCH v3 03/14] vdpa: Negotiate _F_SUSPEND feature |
Date: |
Wed, 15 Feb 2023 18:38:39 +0100 |
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>
---
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 300062130d..1d0209d6ad 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)) {
--
2.31.1
- [PATCH v3 00/14] Dynamically switch to vhost shadow virtqueues at vdpa net migration, Eugenio Pérez, 2023/02/15
- [PATCH v3 01/14] vdpa net: move iova tree creation from init to start, Eugenio Pérez, 2023/02/15
- [PATCH v3 02/14] vdpa: stop svq at vhost_vdpa_dev_start(false), Eugenio Pérez, 2023/02/15
- [PATCH v3 03/14] vdpa: Negotiate _F_SUSPEND feature,
Eugenio Pérez <=
- [PATCH v3 04/14] vdpa: add vhost_vdpa_suspend, Eugenio Pérez, 2023/02/15
- [PATCH v3 05/14] vdpa: move vhost reset after get vring base, Eugenio Pérez, 2023/02/15
- [PATCH v3 06/14] vdpa: rewind at get_base, not set_base, Eugenio Pérez, 2023/02/15
- [PATCH v3 07/14] vdpa net: allow VHOST_F_LOG_ALL, Eugenio Pérez, 2023/02/15
- [PATCH v3 08/14] vdpa: add vdpa net migration state notifier, Eugenio Pérez, 2023/02/15
- [PATCH v3 10/14] vdpa net: block migration if the device has CVQ, Eugenio Pérez, 2023/02/15
- [PATCH v3 11/14] vdpa: block migration if device has unsupported features, Eugenio Pérez, 2023/02/15
- [PATCH v3 12/14] vdpa: block migration if dev does not have _F_SUSPEND, Eugenio Pérez, 2023/02/15