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vhost-user: add protocol feature negotiation

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Support a separate bitmask for vhost-user protocol features,
and messages to get/set protocol features.

Invoke them at init.

No features are defined yet.

[ leverage vhost_user_call for request handling -- Yuanhan Liu ]

Signed-off-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Tested-by: Marcel Apfelbaum <marcel@redhat.com>
This commit is contained in:
Michael S. Tsirkin 2015-09-23 12:19:56 +08:00
parent 7305483a3d
commit dcb10c000c
4 changed files with 71 additions and 0 deletions
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1
include/hw/virtio/vhost.h
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@ -47,6 +47,7 @@ struct vhost_dev {
unsigned long long features;
unsigned long long acked_features;
unsigned long long backend_features;
unsigned long long protocol_features;
bool started;
bool log_enabled;
unsigned long long log_size;