Date: Fri, 17 Apr 2015 11:18:13 +0200
From: Greg Kurz <gkurz@linux.vnet.ibm.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>, linux-api@vger.kernel.org,
        linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
        virtualization@lists.linux-foundation.org
Subject: Re: [PATCH v4 0/8] vhost: support for cross endian guests
Message-ID: <20150417111813.2b795b2c@bahia.local>
In-Reply-To: <20150410101500.31843.61248.stgit@bahia.local>
References: <20150410101500.31843.61248.stgit@bahia.local>
Organization: IBM
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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
> 
> _______________________________________________
> Virtualization mailing list
> Virtualization@lists.linux-foundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/virtualization
> 

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