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vhost: make features 64 bit 

We need to use bit 32 for virtio 1.0.
Make vhost_has_feature bool to avoid discarding high bits.

Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
hifive-unleashed-5.1
Michael S. Tsirkin 2014-10-24 14:08:18 +03:00
parent 9465a7a6f1
commit bd82752a83
1 changed files with 3 additions and 3 deletions
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6
drivers/vhost/vhost.h
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@ -106,7 +106,7 @@ struct vhost_virtqueue {
/* Protected by virtqueue mutex. */
struct vhost_memory *memory;
void *private_data;
unsigned acked_features;
u64 acked_features;
/* Log write descriptors */
void __user *log_base;
struct vhost_log *log;
@ -172,8 +172,8 @@ enum {
(1ULL << VHOST_F_LOG_ALL),
};
static inline int vhost_has_feature(struct vhost_virtqueue *vq, int bit)
static inline bool vhost_has_feature(struct vhost_virtqueue *vq, int bit)
{
return vq->acked_features & (1 << bit);
return vq->acked_features & (1ULL << bit);
}
#endif