Displaying 20 results from an estimated 27 matches for "4e9a186".
2015 Apr 07
1
[PATCH v3 6/7] virtio: add explicit big-endian support to memory accessors
...N_VNET_LE;
> + if (tun->flags & TUN_VNET_LE)
> + return true;
> + return virtio_legacy_is_little_endian();
> }
>
> static inline u16 tun16_to_cpu(struct tun_struct *tun, __virtio16 val)
> diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
> index 6a49960..4e9a186 100644
> --- a/drivers/vhost/vhost.h
> +++ b/drivers/vhost/vhost.h
> @@ -175,7 +175,9 @@ static inline bool vhost_has_feature(struct vhost_virtqueue *vq, int bit)
>
> static inline bool vhost_is_little_endian(struct vhost_virtqueue *vq)
> {
> - return vhost_has_feature(vq,...
2015 Apr 07
1
[PATCH v3 6/7] virtio: add explicit big-endian support to memory accessors
...N_VNET_LE;
> + if (tun->flags & TUN_VNET_LE)
> + return true;
> + return virtio_legacy_is_little_endian();
> }
>
> static inline u16 tun16_to_cpu(struct tun_struct *tun, __virtio16 val)
> diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
> index 6a49960..4e9a186 100644
> --- a/drivers/vhost/vhost.h
> +++ b/drivers/vhost/vhost.h
> @@ -175,7 +175,9 @@ static inline bool vhost_has_feature(struct vhost_virtqueue *vq, int bit)
>
> static inline bool vhost_is_little_endian(struct vhost_virtqueue *vq)
> {
> - return vhost_has_feature(vq,...
2015 Apr 07
13
[PATCH v3 0/7] vhost: support for cross endian guests
Hi,
This patchset allows vhost to be used with legacy virtio when guest and host
have a different endianness.
Patches 1-6 remain the same as the previous post. Patch 7 was heavily changed
according to MST's comments.
---
Greg Kurz (7):
virtio: introduce virtio_is_little_endian() helper
tun: add tun_is_little_endian() helper
macvtap: introduce macvtap_is_little_endian()
2015 Apr 07
13
[PATCH v3 0/7] vhost: support for cross endian guests
Hi,
This patchset allows vhost to be used with legacy virtio when guest and host
have a different endianness.
Patches 1-6 remain the same as the previous post. Patch 7 was heavily changed
according to MST's comments.
---
Greg Kurz (7):
virtio: introduce virtio_is_little_endian() helper
tun: add tun_is_little_endian() helper
macvtap: introduce macvtap_is_little_endian()
2015 Apr 07
1
[PATCH v3 7/7] vhost: feature to set the vring endianness
...+ case VHOST_GET_VRING_ENDIAN_LEGACY:
> + r = vhost_get_vring_endian_legacy(vq, idx, argp);
> + break;
> default:
> r = -ENOIOCTLCMD;
> }
I think we also want to forbid this with a running backend.
> diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
> index 4e9a186..981ba06 100644
> --- a/drivers/vhost/vhost.h
> +++ b/drivers/vhost/vhost.h
> @@ -106,6 +106,9 @@ struct vhost_virtqueue {
> /* Log write descriptors */
> void __user *log_base;
> struct vhost_log *log;
> +
> + /* We need to know the device endianness with legacy virti...
2015 Apr 21
1
[PATCH v4 6/8] virtio: add explicit big-endian support to memory accessors
...N_VNET_LE;
> + if (tun->flags & TUN_VNET_LE)
> + return true;
> + return virtio_legacy_is_little_endian();
> }
>
> static inline u16 tun16_to_cpu(struct tun_struct *tun, __virtio16 val)
> diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
> index 6a49960..4e9a186 100644
> --- a/drivers/vhost/vhost.h
> +++ b/drivers/vhost/vhost.h
> @@ -175,7 +175,9 @@ static inline bool vhost_has_feature(struct vhost_virtqueue *vq, int bit)
>
> static inline bool vhost_is_little_endian(struct vhost_virtqueue *vq)
> {
> - return vhost_has_feature(vq,...
2015 Apr 07
1
[PATCH v3 7/7] vhost: feature to set the vring endianness
...+ case VHOST_GET_VRING_ENDIAN_LEGACY:
> + r = vhost_get_vring_endian_legacy(vq, idx, argp);
> + break;
> default:
> r = -ENOIOCTLCMD;
> }
I think we also want to forbid this with a running backend.
> diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
> index 4e9a186..981ba06 100644
> --- a/drivers/vhost/vhost.h
> +++ b/drivers/vhost/vhost.h
> @@ -106,6 +106,9 @@ struct vhost_virtqueue {
> /* Log write descriptors */
> void __user *log_base;
> struct vhost_log *log;
> +
> + /* We need to know the device endianness with legacy virti...
2015 Apr 21
1
[PATCH v4 6/8] virtio: add explicit big-endian support to memory accessors
...N_VNET_LE;
> + if (tun->flags & TUN_VNET_LE)
> + return true;
> + return virtio_legacy_is_little_endian();
> }
>
> static inline u16 tun16_to_cpu(struct tun_struct *tun, __virtio16 val)
> diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
> index 6a49960..4e9a186 100644
> --- a/drivers/vhost/vhost.h
> +++ b/drivers/vhost/vhost.h
> @@ -175,7 +175,9 @@ static inline bool vhost_has_feature(struct vhost_virtqueue *vq, int bit)
>
> static inline bool vhost_is_little_endian(struct vhost_virtqueue *vq)
> {
> - return vhost_has_feature(vq,...
2015 Apr 07
1
[PATCH v3 7/7] vhost: feature to set the vring endianness
...= vhost_set_vring_endian_legacy(vq, argp);
> + break;
> + case VHOST_GET_VRING_ENDIAN_LEGACY:
> + r = vhost_get_vring_endian_legacy(vq, idx, argp);
> + break;
> default:
> r = -ENOIOCTLCMD;
> }
> diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
> index 4e9a186..981ba06 100644
> --- a/drivers/vhost/vhost.h
> +++ b/drivers/vhost/vhost.h
> @@ -106,6 +106,9 @@ struct vhost_virtqueue {
> /* Log write descriptors */
> void __user *log_base;
> struct vhost_log *log;
> +
> + /* We need to know the device endianness with legacy virti...
2015 Apr 07
1
[PATCH v3 7/7] vhost: feature to set the vring endianness
...= vhost_set_vring_endian_legacy(vq, argp);
> + break;
> + case VHOST_GET_VRING_ENDIAN_LEGACY:
> + r = vhost_get_vring_endian_legacy(vq, idx, argp);
> + break;
> default:
> r = -ENOIOCTLCMD;
> }
> diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
> index 4e9a186..981ba06 100644
> --- a/drivers/vhost/vhost.h
> +++ b/drivers/vhost/vhost.h
> @@ -106,6 +106,9 @@ struct vhost_virtqueue {
> /* Log write descriptors */
> void __user *log_base;
> struct vhost_log *log;
> +
> + /* We need to know the device endianness with legacy virti...
2015 Apr 21
2
[PATCH v4 7/8] vhost: feature to set the vring endianness
...te_data)
> + if (!vq->private_data) {
> + vq->is_le = virtio_legacy_is_little_endian();
> return 0;
> + }
> +
> + vhost_init_is_le(vq);
>
> r = vhost_update_used_flags(vq);
> if (r)
> diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
> index 4e9a186..04b2add 100644
> --- a/drivers/vhost/vhost.h
> +++ b/drivers/vhost/vhost.h
> @@ -106,6 +106,14 @@ struct vhost_virtqueue {
> /* Log write descriptors */
> void __user *log_base;
> struct vhost_log *log;
> +
> + /* Ring endianness. Defaults to legacy native endianness....
2015 Apr 21
2
[PATCH v4 7/8] vhost: feature to set the vring endianness
...te_data)
> + if (!vq->private_data) {
> + vq->is_le = virtio_legacy_is_little_endian();
> return 0;
> + }
> +
> + vhost_init_is_le(vq);
>
> r = vhost_update_used_flags(vq);
> if (r)
> diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
> index 4e9a186..04b2add 100644
> --- a/drivers/vhost/vhost.h
> +++ b/drivers/vhost/vhost.h
> @@ -106,6 +106,14 @@ struct vhost_virtqueue {
> /* Log write descriptors */
> void __user *log_base;
> struct vhost_log *log;
> +
> + /* Ring endianness. Defaults to legacy native endianness....
2015 Apr 02
2
[PATCH v2 7/7] vhost: feature to set the vring endianness
...rom_user(&e, argp, sizeof(e))) {
> + r = -EFAULT;
> + break;
> + }
> + vq->legacy_big_endian = e.is_big_endian;
> + break;
> + }
> +#endif
> default:
> r = -ENOIOCTLCMD;
> }
> diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
> index 4e9a186..d50881d 100644
> --- a/drivers/vhost/vhost.h
> +++ b/drivers/vhost/vhost.h
> @@ -106,6 +106,9 @@ struct vhost_virtqueue {
> /* Log write descriptors */
> void __user *log_base;
> struct vhost_log *log;
> +
> + /* We need to know the device endianness with legacy virti...
2015 Apr 02
2
[PATCH v2 7/7] vhost: feature to set the vring endianness
...rom_user(&e, argp, sizeof(e))) {
> + r = -EFAULT;
> + break;
> + }
> + vq->legacy_big_endian = e.is_big_endian;
> + break;
> + }
> +#endif
> default:
> r = -ENOIOCTLCMD;
> }
> diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
> index 4e9a186..d50881d 100644
> --- a/drivers/vhost/vhost.h
> +++ b/drivers/vhost/vhost.h
> @@ -106,6 +106,9 @@ struct vhost_virtqueue {
> /* Log write descriptors */
> void __user *log_base;
> struct vhost_log *log;
> +
> + /* We need to know the device endianness with legacy virti...
2015 Apr 02
9
[PATCH v2 0/7] vhost: support for cross endian guests
Hi,
This patchset allows vhost to be used with legacy virtio when guest and host
have a different endianness. It is a complete rework of my initial post.
Patches 1 to 5 are preliminary work: we move the endianness check out of all
memory accessors to separate functions.
Patch 6 changes the semantics of the accessors so that they have explicit big
endian support.
Patch 7 brings the cross-endian
2015 Apr 02
9
[PATCH v2 0/7] vhost: support for cross endian guests
Hi,
This patchset allows vhost to be used with legacy virtio when guest and host
have a different endianness. It is a complete rework of my initial post.
Patches 1 to 5 are preliminary work: we move the endianness check out of all
memory accessors to separate functions.
Patch 6 changes the semantics of the accessors so that they have explicit big
endian support.
Patch 7 brings the cross-endian
2015 Apr 07
0
[PATCH v3 7/7] vhost: feature to set the vring endianness
...;
+ case VHOST_SET_VRING_ENDIAN_LEGACY:
+ r = vhost_set_vring_endian_legacy(vq, argp);
+ break;
+ case VHOST_GET_VRING_ENDIAN_LEGACY:
+ r = vhost_get_vring_endian_legacy(vq, idx, argp);
+ break;
default:
r = -ENOIOCTLCMD;
}
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
index 4e9a186..981ba06 100644
--- a/drivers/vhost/vhost.h
+++ b/drivers/vhost/vhost.h
@@ -106,6 +106,9 @@ struct vhost_virtqueue {
/* Log write descriptors */
void __user *log_base;
struct vhost_log *log;
+
+ /* We need to know the device endianness with legacy virtio. */
+ bool legacy_is_little_endian;
}...
2015 Apr 07
0
[PATCH v3 6/7] virtio: add explicit big-endian support to memory accessors
...*tun)
{
- return tun->flags & TUN_VNET_LE;
+ if (tun->flags & TUN_VNET_LE)
+ return true;
+ return virtio_legacy_is_little_endian();
}
static inline u16 tun16_to_cpu(struct tun_struct *tun, __virtio16 val)
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
index 6a49960..4e9a186 100644
--- a/drivers/vhost/vhost.h
+++ b/drivers/vhost/vhost.h
@@ -175,7 +175,9 @@ static inline bool vhost_has_feature(struct vhost_virtqueue *vq, int bit)
static inline bool vhost_is_little_endian(struct vhost_virtqueue *vq)
{
- return vhost_has_feature(vq, VIRTIO_F_VERSION_1);
+ if (vhost_ha...
2015 Apr 10
0
[PATCH v4 6/8] virtio: add explicit big-endian support to memory accessors
...*tun)
{
- return tun->flags & TUN_VNET_LE;
+ if (tun->flags & TUN_VNET_LE)
+ return true;
+ return virtio_legacy_is_little_endian();
}
static inline u16 tun16_to_cpu(struct tun_struct *tun, __virtio16 val)
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
index 6a49960..4e9a186 100644
--- a/drivers/vhost/vhost.h
+++ b/drivers/vhost/vhost.h
@@ -175,7 +175,9 @@ static inline bool vhost_has_feature(struct vhost_virtqueue *vq, int bit)
static inline bool vhost_is_little_endian(struct vhost_virtqueue *vq)
{
- return vhost_has_feature(vq, VIRTIO_F_VERSION_1);
+ if (vhost_ha...
2015 Apr 02
0
[PATCH v2 7/7] vhost: feature to set the vring endianness
..._LEGACY)) {
+ r = -EINVAL;
+ break;
+ }
+
+ if (copy_from_user(&e, argp, sizeof(e))) {
+ r = -EFAULT;
+ break;
+ }
+ vq->legacy_big_endian = e.is_big_endian;
+ break;
+ }
+#endif
default:
r = -ENOIOCTLCMD;
}
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
index 4e9a186..d50881d 100644
--- a/drivers/vhost/vhost.h
+++ b/drivers/vhost/vhost.h
@@ -106,6 +106,9 @@ struct vhost_virtqueue {
/* Log write descriptors */
void __user *log_base;
struct vhost_log *log;
+
+ /* We need to know the device endianness with legacy virtio. */
+ bool legacy_big_endian;
};
s...