From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:46623) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZNKTl-0001oh-Cv for qemu-devel@nongnu.org; Thu, 06 Aug 2015 08:41:02 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZNKTg-0008Fl-Vb for qemu-devel@nongnu.org; Thu, 06 Aug 2015 08:41:01 -0400 Received: from mail-qk0-x22f.google.com ([2607:f8b0:400d:c09::22f]:34736) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZNKTg-0008Fa-Rn for qemu-devel@nongnu.org; Thu, 06 Aug 2015 08:40:56 -0400 Received: by qkcs67 with SMTP id s67so3200561qkc.1 for ; Thu, 06 Aug 2015 05:40:56 -0700 (PDT) Sender: =?UTF-8?B?TWFyYy1BbmRyw6kgTHVyZWF1?= From: marcandre.lureau@redhat.com Date: Thu, 6 Aug 2015 14:40:36 +0200 Message-Id: <1438864852-4939-1-git-send-email-marcandre.lureau@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [Qemu-devel] [PATCH v3 00/16] vhost-user: add migration log support (for 2.5) List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: haifeng.lin@huawei.com, mst@redhat.com, thibaut.collet@6wind.com, jasowang@redhat.com, pbonzini@redhat.com, =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= From: Marc-André Lureau Hi, The following series implement shareable log for vhost-user to support memory tracking during live migration. On qemu-side, the solution is fairly straightfoward since vhost already supports the dirty log, only vhost-user couldn't access the log memory until then. The series is based on top of "protocol feature negotiation" series proposed earlier by Michael S. Tsirkinm and "vhost user: Add live migration" series from Thibaut Collet . Since v2: - changed some patch summary - added migration tests - added a patch to replace error message with a trace The development branch I used is: https://github.com/elmarco/qemu branch "vhost-user" More comments welcome! Marc-André Lureau (16): configure: probe for memfd util: add linux-only memfd fallback util: add memfd helpers vhost: alloc shareable log vhost: document log resizing vhost: use variable arguments for vhost_call() vhost-user: start and end the va_list vhost-user: send log shm fd along with log_base vhost-user: document migration log net: add trace_vhost_user_event vhost-user-test: move wait_for_fds() out vhost-user-test: remove useless static check vhost-user-test: wrap server in TestServer struct vhost-user-test: learn to tweak various qemu arguments vhost-user-test: add live-migration test vhost-user-test: check ownership during migration configure | 19 ++ docs/specs/vhost-user.txt | 42 +++++ hw/virtio/vhost-backend.c | 4 +- hw/virtio/vhost-user.c | 52 ++++-- hw/virtio/vhost.c | 45 ++++- include/hw/virtio/vhost-backend.h | 6 +- include/hw/virtio/vhost.h | 3 +- include/qemu/memfd.h | 24 +++ net/vhost-user.c | 5 +- tests/vhost-user-test.c | 366 +++++++++++++++++++++++++++++++------- trace-events | 3 + util/Makefile.objs | 2 +- util/memfd.c | 126 +++++++++++++ 13 files changed, 602 insertions(+), 95 deletions(-) create mode 100644 include/qemu/memfd.h create mode 100644 util/memfd.c -- 2.4.3