search for: vhost_set_vring_big_endian

.../vhost.c | 76 +++++++++++++++++++++++++++++++++++++++++++- > drivers/vhost/vhost.h | 12 +++++-- > include/uapi/linux/vhost.h | 9 +++++ > 4 files changed, 103 insertions(+), 4 deletions(-) > > Changes since v3: > - VHOST_SET_VRING_ENDIAN_LEGACY ioctl renamed to VHOST_SET_VRING_BIG_ENDIAN > - ioctl API is now: 0 for le, 1 for be, other values are EINVAL > - ioctl doesn't filter out modern devices > - ioctl stubs return ENOIOCTLCMD > - forbid endianness changes when vring is active > - logic now handled with vq->is_le and vq->user_be according to device >...

.../vhost.c | 76 +++++++++++++++++++++++++++++++++++++++++++- > drivers/vhost/vhost.h | 12 +++++-- > include/uapi/linux/vhost.h | 9 +++++ > 4 files changed, 103 insertions(+), 4 deletions(-) > > Changes since v3: > - VHOST_SET_VRING_ENDIAN_LEGACY ioctl renamed to VHOST_SET_VRING_BIG_ENDIAN > - ioctl API is now: 0 for le, 1 for be, other values are EINVAL > - ioctl doesn't filter out modern devices > - ioctl stubs return ENOIOCTLCMD > - forbid endianness changes when vring is active > - logic now handled with vq->is_le and vq->user_be according to device >...

...++++- > > > drivers/vhost/vhost.h | 12 +++++-- > > > include/uapi/linux/vhost.h | 9 +++++ > > > 4 files changed, 103 insertions(+), 4 deletions(-) > > > > > > Changes since v3: > > > - VHOST_SET_VRING_ENDIAN_LEGACY ioctl renamed to VHOST_SET_VRING_BIG_ENDIAN > > > - ioctl API is now: 0 for le, 1 for be, other values are EINVAL > > > - ioctl doesn't filter out modern devices > > > - ioctl stubs return ENOIOCTLCMD > > > - forbid endianness changes when vring is active > > > - logic now handled with vq->...

...++++- > > > drivers/vhost/vhost.h | 12 +++++-- > > > include/uapi/linux/vhost.h | 9 +++++ > > > 4 files changed, 103 insertions(+), 4 deletions(-) > > > > > > Changes since v3: > > > - VHOST_SET_VRING_ENDIAN_LEGACY ioctl renamed to VHOST_SET_VRING_BIG_ENDIAN > > > - ioctl API is now: 0 for le, 1 for be, other values are EINVAL > > > - ioctl doesn't filter out modern devices > > > - ioctl stubs return ENOIOCTLCMD > > > - forbid endianness changes when vring is active > > > - logic now handled with vq->...

...| 10 ++++++ drivers/vhost/vhost.c | 76 +++++++++++++++++++++++++++++++++++++++++++- drivers/vhost/vhost.h | 12 +++++-- include/uapi/linux/vhost.h | 9 +++++ 4 files changed, 103 insertions(+), 4 deletions(-) Changes since v3: - VHOST_SET_VRING_ENDIAN_LEGACY ioctl renamed to VHOST_SET_VRING_BIG_ENDIAN - ioctl API is now: 0 for le, 1 for be, other values are EINVAL - ioctl doesn't filter out modern devices - ioctl stubs return ENOIOCTLCMD - forbid endianness changes when vring is active - logic now handled with vq->is_le and vq->user_be according to device start/stop as suggested by M...

...++++++++++++++++++++++++++++++++++- > > drivers/vhost/vhost.h | 12 +++++-- > > include/uapi/linux/vhost.h | 9 +++++ > > 4 files changed, 103 insertions(+), 4 deletions(-) > > > > Changes since v3: > > - VHOST_SET_VRING_ENDIAN_LEGACY ioctl renamed to VHOST_SET_VRING_BIG_ENDIAN > > - ioctl API is now: 0 for le, 1 for be, other values are EINVAL > > - ioctl doesn't filter out modern devices > > - ioctl stubs return ENOIOCTLCMD > > - forbid endianness changes when vring is active > > - logic now handled with vq->is_le and vq->user_be...

Hi, This patchset allows vhost to be used with legacy virtio when guest and host have a different endianness. Patch 7 got rewritten according to Cornelia's and Michael's comments. I have also introduced patch 8 that brings BE vnet headers support to tun/macvtap. This series is enough to have vhost_net working flawlessly. I could succesfully reboot guests from ppc64 to ppc64le and

Hi, This patchset allows vhost to be used with legacy virtio when guest and host have a different endianness. Patch 7 got rewritten according to Cornelia's and Michael's comments. I have also introduced patch 8 that brings BE vnet headers support to tun/macvtap. This series is enough to have vhost_net working flawlessly. I could succesfully reboot guests from ppc64 to ppc64le and

...[ ... ] > > > > @@ -630,6 +634,53 @@ static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m) > > > > return 0; > > > > } > > > > > > > > +#ifdef CONFIG_VHOST_SET_ENDIAN_LEGACY > > > > +static long vhost_set_vring_big_endian(struct vhost_virtqueue *vq, > > > > + int __user *argp) > > > > +{ > > > > + struct vhost_vring_state s; > > > > + > > > > + if (vq->private_data) > > > > + return -EBUSY; > > > > + > > > >...

...> drivers/vhost/vhost.c | 76 +++++++++++++++++++++++++++++++++++++++++++- > drivers/vhost/vhost.h | 12 +++++-- > include/uapi/linux/vhost.h | 9 +++++ > 4 files changed, 103 insertions(+), 4 deletions(-) > +#ifdef CONFIG_VHOST_SET_ENDIAN_LEGACY > +static long vhost_set_vring_big_endian(struct vhost_virtqueue *vq, > + int __user *argp) > +{ > + struct vhost_vring_state s; > + > + if (vq->private_data) > + return -EBUSY; > + > + if (copy_from_user(&s, argp, sizeof(s))) > + return -EFAULT; > + > + if (s.num && s.num != 1)...

...> drivers/vhost/vhost.c | 76 +++++++++++++++++++++++++++++++++++++++++++- > drivers/vhost/vhost.h | 12 +++++-- > include/uapi/linux/vhost.h | 9 +++++ > 4 files changed, 103 insertions(+), 4 deletions(-) > +#ifdef CONFIG_VHOST_SET_ENDIAN_LEGACY > +static long vhost_set_vring_big_endian(struct vhost_virtqueue *vq, > + int __user *argp) > +{ > + struct vhost_vring_state s; > + > + if (vq->private_data) > + return -EBUSY; > + > + if (copy_from_user(&s, argp, sizeof(s))) > + return -EFAULT; > + > + if (s.num && s.num != 1)...

...| 76 +++++++++++++++++++++++++++++++++++++++++++- > > drivers/vhost/vhost.h | 12 +++++-- > > include/uapi/linux/vhost.h | 9 +++++ > > 4 files changed, 103 insertions(+), 4 deletions(-) > > > +#ifdef CONFIG_VHOST_SET_ENDIAN_LEGACY > > +static long vhost_set_vring_big_endian(struct vhost_virtqueue *vq, > > + int __user *argp) > > +{ > > + struct vhost_vring_state s; > > + > > + if (vq->private_data) > > + return -EBUSY; > > + > > + if (copy_from_user(&s, argp, sizeof(s))) > > + return -EFAULT; &gt...