Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932480AbbDJKPM (ORCPT ); Fri, 10 Apr 2015 06:15:12 -0400 Received: from e06smtp14.uk.ibm.com ([195.75.94.110]:43897 "EHLO e06smtp14.uk.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932196AbbDJKPJ (ORCPT ); Fri, 10 Apr 2015 06:15:09 -0400 Subject: [PATCH v4 0/8] vhost: support for cross endian guests From: Greg Kurz To: Rusty Russell , "Michael S. Tsirkin" Cc: Cornelia Huck , linux-api@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, virtualization@lists.linux-foundation.org Date: Fri, 10 Apr 2015 12:15:00 +0200 Message-ID: <20150410101500.31843.61248.stgit@bahia.local> User-Agent: StGit/0.17-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 15041010-0017-0000-0000-000003AA5481 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1814 Lines: 46 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. --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/