From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg Kurz Subject: Re: [PATCH v4 0/8] vhost: support for cross endian guests Date: Fri, 17 Apr 2015 11:18:13 +0200 Message-ID: <20150417111813.2b795b2c@bahia.local> References: <20150410101500.31843.61248.stgit@bahia.local> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20150410101500.31843.61248.stgit@bahia.local> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: "Michael S. Tsirkin" Cc: linux-api@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, virtualization@lists.linux-foundation.org List-Id: linux-api@vger.kernel.org On Fri, 10 Apr 2015 12:15:00 +0200 Greg Kurz 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 >