From: Greg Kurz <gkurz@linux.vnet.ibm.com>
To: Rusty Russell <rusty@rustcorp.com.au>,
"Michael S. Tsirkin" <mst@redhat.com>
Cc: linux-api@vger.kernel.org, linux-kernel@vger.kernel.org,
kvm@vger.kernel.org, virtualization@lists.linux-foundation.org
Subject: [PATCH v2 5/7] vhost: introduce vhost_is_little_endian() helper
Date: Thu, 02 Apr 2015 15:17:03 +0200 [thread overview]
Message-ID: <20150402131703.24676.51701.stgit@bahia.lab.toulouse-stg.fr.ibm.com> (raw)
In-Reply-To: <20150402131637.24676.60700.stgit@bahia.lab.toulouse-stg.fr.ibm.com>
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
---
drivers/vhost/vhost.h | 17 +++++++++++------
1 file changed, 11 insertions(+), 6 deletions(-)
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
index 8c1c792..6a49960 100644
--- a/drivers/vhost/vhost.h
+++ b/drivers/vhost/vhost.h
@@ -173,34 +173,39 @@ static inline bool vhost_has_feature(struct vhost_virtqueue *vq, int bit)
return vq->acked_features & (1ULL << bit);
}
+static inline bool vhost_is_little_endian(struct vhost_virtqueue *vq)
+{
+ return vhost_has_feature(vq, VIRTIO_F_VERSION_1);
+}
+
/* Memory accessors */
static inline u16 vhost16_to_cpu(struct vhost_virtqueue *vq, __virtio16 val)
{
- return __virtio16_to_cpu(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val);
+ return __virtio16_to_cpu(vhost_is_little_endian(vq), val);
}
static inline __virtio16 cpu_to_vhost16(struct vhost_virtqueue *vq, u16 val)
{
- return __cpu_to_virtio16(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val);
+ return __cpu_to_virtio16(vhost_is_little_endian(vq), val);
}
static inline u32 vhost32_to_cpu(struct vhost_virtqueue *vq, __virtio32 val)
{
- return __virtio32_to_cpu(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val);
+ return __virtio32_to_cpu(vhost_is_little_endian(vq), val);
}
static inline __virtio32 cpu_to_vhost32(struct vhost_virtqueue *vq, u32 val)
{
- return __cpu_to_virtio32(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val);
+ return __cpu_to_virtio32(vhost_is_little_endian(vq), val);
}
static inline u64 vhost64_to_cpu(struct vhost_virtqueue *vq, __virtio64 val)
{
- return __virtio64_to_cpu(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val);
+ return __virtio64_to_cpu(vhost_is_little_endian(vq), val);
}
static inline __virtio64 cpu_to_vhost64(struct vhost_virtqueue *vq, u64 val)
{
- return __cpu_to_virtio64(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val);
+ return __cpu_to_virtio64(vhost_is_little_endian(vq), val);
}
#endif
next prev parent reply other threads:[~2015-04-02 13:18 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-02 13:16 [PATCH v2 0/7] vhost: support for cross endian guests Greg Kurz
2015-04-02 13:16 ` [PATCH v2 1/7] virtio: introduce virtio_is_little_endian() helper Greg Kurz
2015-04-02 13:16 ` [PATCH v2 2/7] tun: add tun_is_little_endian() helper Greg Kurz
2015-04-02 13:16 ` [PATCH v2 3/7] macvtap: introduce macvtap_is_little_endian() helper Greg Kurz
2015-04-02 13:16 ` [PATCH v2 4/7] vringh: introduce vringh_is_little_endian() helper Greg Kurz
2015-04-02 13:17 ` Greg Kurz [this message]
2015-04-02 13:17 ` [PATCH v2 6/7] virtio: add explicit big-endian support to memory accessors Greg Kurz
2015-04-02 13:17 ` [PATCH v2 7/7] vhost: feature to set the vring endianness Greg Kurz
2015-04-02 14:20 ` Michael S. Tsirkin
2015-04-02 16:45 ` Greg Kurz
2015-04-02 18:53 ` Michael S. Tsirkin
2015-04-02 14:23 ` [PATCH v2 0/7] vhost: support for cross endian guests Michael S. Tsirkin
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