From 1be0ac2109fbaca6e730ac578f0564507d173e2d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= <marcandre.lureau@redhat.com>
Date: Fri, 9 Oct 2015 17:17:24 +0200
Subject: vhost-user: add vhost_user_requires_shm_log()
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Check if the backend has VHOST_USER_PROTOCOL_F_LOG_SHMFD feature and
require a shared log.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Thibaut Collet <thibaut.collet@6wind.com>
---
 include/hw/virtio/vhost-backend.h | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'include')

diff --git a/include/hw/virtio/vhost-backend.h b/include/hw/virtio/vhost-backend.h
index c9035736db..c33570aeea 100644
--- a/include/hw/virtio/vhost-backend.h
+++ b/include/hw/virtio/vhost-backend.h
@@ -11,6 +11,8 @@
 #ifndef VHOST_BACKEND_H_
 #define VHOST_BACKEND_H_
 
+#include <stdbool.h>
+
 typedef enum VhostBackendType {
     VHOST_BACKEND_TYPE_NONE = 0,
     VHOST_BACKEND_TYPE_KERNEL = 1,
@@ -29,6 +31,7 @@ typedef int (*vhost_backend_set_vring_enable)(struct vhost_dev *dev, int enable)
 typedef int (*vhost_backend_memslots_limit)(struct vhost_dev *dev);
 
 typedef int (*vhost_set_log_base_op)(struct vhost_dev *dev, uint64_t base);
+typedef bool (*vhost_requires_shm_log_op)(struct vhost_dev *dev);
 
 typedef struct VhostOps {
     VhostBackendType backend_type;
@@ -39,6 +42,7 @@ typedef struct VhostOps {
     vhost_backend_set_vring_enable vhost_backend_set_vring_enable;
     vhost_backend_memslots_limit vhost_backend_memslots_limit;
     vhost_set_log_base_op vhost_set_log_base;
+    vhost_requires_shm_log_op vhost_requires_shm_log;
 } VhostOps;
 
 extern const VhostOps user_ops;
-- 
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