Re: [PATCH v4 0/8] vhost: support for cross endian guests

Greg Kurz
2015-04-17T09:18:13Z

On Fri, 10 Apr 2015 12:15:00 +0200
Greg Kurz <gkurz@linux.vnet.ibm.com> wrote:

> 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 vice-versa on ppc64
> and ppc64le hosts.
>

Michael,

I am ready to post v5 with the changes suggested by Cornelia... Do you have any
extra comments on this v4 ?

--
Greg

> ---
>
> Greg Kurz (8):
> virtio: introduce virtio_is_little_endian() helper
> tun: add tun_is_little_endian() helper
> macvtap: introduce macvtap_is_little_endian() helper
> vringh: introduce vringh_is_little_endian() helper
> vhost: introduce vhost_is_little_endian() helper
> virtio: add explicit big-endian support to memory accessors
> vhost: feature to set the vring endianness
> macvtap/tun: add VNET_BE flag
>
>
> drivers/net/Kconfig | 12 ++++++
> drivers/net/macvtap.c | 69 ++++++++++++++++++++++++++++++++++-
> drivers/net/tun.c | 71 +++++++++++++++++++++++++++++++++++-
> drivers/vhost/Kconfig | 10 +++++
> drivers/vhost/vhost.c | 76 ++++++++++++++++++++++++++++++++++++++
> drivers/vhost/vhost.h | 25 ++++++++++---
> include/linux/virtio_byteorder.h | 24 +++++++-----
> include/linux/virtio_config.h | 19 +++++++---
> include/linux/vringh.h | 19 +++++++---
> include/uapi/linux/if_tun.h | 2 +
> include/uapi/linux/vhost.h | 9 +++++
> 11 files changed, 303 insertions(+), 33 deletions(-)
>
> --
> Greg
>
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