search for: vhost_f_set_endian_legacy

...index 2bbfc25..5274a44 100644 > --- a/drivers/vhost/net.c > +++ b/drivers/vhost/net.c > @@ -1011,6 +1011,11 @@ static int vhost_net_set_features(struct vhost_net *n, u64 features) > vhost_hlen = 0; > sock_hlen = hdr_len; > } > + > + if (features & ((1ULL << VHOST_F_SET_ENDIAN_LEGACY) | > + (1ULL << VIRTIO_F_VERSION_1))) > + return -EINVAL; > + > mutex_lock(&n->dev.mutex); > if ((features & (1 << VHOST_F_LOG_ALL)) && > !vhost_log_access_ok(&n->dev)) { > diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi...

...index 2bbfc25..5274a44 100644 > --- a/drivers/vhost/net.c > +++ b/drivers/vhost/net.c > @@ -1011,6 +1011,11 @@ static int vhost_net_set_features(struct vhost_net *n, u64 features) > vhost_hlen = 0; > sock_hlen = hdr_len; > } > + > + if (features & ((1ULL << VHOST_F_SET_ENDIAN_LEGACY) | > + (1ULL << VIRTIO_F_VERSION_1))) > + return -EINVAL; > + > mutex_lock(&n->dev.mutex); > if ((features & (1 << VHOST_F_LOG_ALL)) && > !vhost_log_access_ok(&n->dev)) { > diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi...

...--- a/drivers/vhost/net.c > > +++ b/drivers/vhost/net.c > > @@ -1011,6 +1011,11 @@ static int vhost_net_set_features(struct vhost_net *n, u64 features) > > vhost_hlen = 0; > > sock_hlen = hdr_len; > > } > > + > > + if (features & ((1ULL << VHOST_F_SET_ENDIAN_LEGACY) | > > + (1ULL << VIRTIO_F_VERSION_1))) > > + return -EINVAL; > > + > > mutex_lock(&n->dev.mutex); > > if ((features & (1 << VHOST_F_LOG_ALL)) && > > !vhost_log_access_ok(&n->dev)) { > > diff --git a/driver...

...ivers/vhost/net.c b/drivers/vhost/net.c index 2bbfc25..5274a44 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -1011,6 +1011,11 @@ static int vhost_net_set_features(struct vhost_net *n, u64 features) vhost_hlen = 0; sock_hlen = hdr_len; } + + if (features & ((1ULL << VHOST_F_SET_ENDIAN_LEGACY) | + (1ULL << VIRTIO_F_VERSION_1))) + return -EINVAL; + mutex_lock(&n->dev.mutex); if ((features & (1 << VHOST_F_LOG_ALL)) && !vhost_log_access_ok(&n->dev)) { diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c index 71df240..b53e9c2 100644 --...

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

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

...5 ++++ > 4 files changed, 86 insertions(+), 1 deletion(-) > > Changes since v2: > - fixed typos in Kconfig description > - renamed vq->legacy_big_endian to vq->legacy_is_little_endian > - vq->legacy_is_little_endian reset to default in vhost_vq_reset() > - dropped VHOST_F_SET_ENDIAN_LEGACY feature > - dropped struct vhost_vring_endian from the user API (re-use > struct vhost_vring_state instead) > - added VHOST_GET_VRING_ENDIAN_LEGACY ioctl > - introduced more helpers and stubs to avoid polluting the code with ifdefs > > > diff --git a/drivers/vhost/Kconfig b...

...5 ++++ > 4 files changed, 86 insertions(+), 1 deletion(-) > > Changes since v2: > - fixed typos in Kconfig description > - renamed vq->legacy_big_endian to vq->legacy_is_little_endian > - vq->legacy_is_little_endian reset to default in vhost_vq_reset() > - dropped VHOST_F_SET_ENDIAN_LEGACY feature > - dropped struct vhost_vring_endian from the user API (re-use > struct vhost_vring_state instead) > - added VHOST_GET_VRING_ENDIAN_LEGACY ioctl > - introduced more helpers and stubs to avoid polluting the code with ifdefs > > > diff --git a/drivers/vhost/Kconfig b...

...5 ++++ > 4 files changed, 86 insertions(+), 1 deletion(-) > > Changes since v2: > - fixed typos in Kconfig description > - renamed vq->legacy_big_endian to vq->legacy_is_little_endian > - vq->legacy_is_little_endian reset to default in vhost_vq_reset() > - dropped VHOST_F_SET_ENDIAN_LEGACY feature > - dropped struct vhost_vring_endian from the user API (re-use > struct vhost_vring_state instead) > - added VHOST_GET_VRING_ENDIAN_LEGACY ioctl > - introduced more helpers and stubs to avoid polluting the code with ifdefs > > > diff --git a/drivers/vhost/Kconfig b...

...5 ++++ > 4 files changed, 86 insertions(+), 1 deletion(-) > > Changes since v2: > - fixed typos in Kconfig description > - renamed vq->legacy_big_endian to vq->legacy_is_little_endian > - vq->legacy_is_little_endian reset to default in vhost_vq_reset() > - dropped VHOST_F_SET_ENDIAN_LEGACY feature > - dropped struct vhost_vring_endian from the user API (re-use > struct vhost_vring_state instead) > - added VHOST_GET_VRING_ENDIAN_LEGACY ioctl > - introduced more helpers and stubs to avoid polluting the code with ifdefs > > > diff --git a/drivers/vhost/Kconfig b...

...+++- include/uapi/linux/vhost.h | 5 ++++ 4 files changed, 86 insertions(+), 1 deletion(-) Changes since v2: - fixed typos in Kconfig description - renamed vq->legacy_big_endian to vq->legacy_is_little_endian - vq->legacy_is_little_endian reset to default in vhost_vq_reset() - dropped VHOST_F_SET_ENDIAN_LEGACY feature - dropped struct vhost_vring_endian from the user API (re-use struct vhost_vring_state instead) - added VHOST_GET_VRING_ENDIAN_LEGACY ioctl - introduced more helpers and stubs to avoid polluting the code with ifdefs diff --git a/drivers/vhost/Kconfig b/drivers/vhost/Kconfig index 017a1e...

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()

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()