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vhost-user: Report to front-end we support VHOST_USER_PROTOCOL_F_DEVICE_STATE

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Report to front-end that we support device state commands:
VHOST_USER_CHECK_DEVICE_STATE
VHOST_USER_SET_LOG_BASE

These feature is needed to transfer backend state using frontend
channel.

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
Laurent Vivier 2024-12-19 12:14:00 +01:00 committed by Stefano Brivio
parent 31d70024be
commit 412ed4f09f
1 changed files with 2 additions and 1 deletions
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3
vhost_user.c
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@ -913,7 +913,8 @@ static bool vu_get_protocol_features_exec(struct vu_dev *vdev,
struct vhost_user_msg *msg)
{
uint64_t features = 1ULL << VHOST_USER_PROTOCOL_F_REPLY_ACK |
1ULL << VHOST_USER_PROTOCOL_F_LOG_SHMFD;
1ULL << VHOST_USER_PROTOCOL_F_LOG_SHMFD |
1ULL << VHOST_USER_PROTOCOL_F_DEVICE_STATE;
(void)vdev;
vmsg_set_reply_u64(msg, features);