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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH V4 0/8] COLO-Proxy: Make Xen COLO use userspace colo-proxy
Because of some reason, We no longer support COLO kernel proxy.
So we send this patch set to make Xen use userspace colo-proxy in qemu.
Below is a COLO userspace proxy ascii figure:
Primary qemu
Secondary qemu
+--------------------------------------------------------------+
+----------------------------------------------------------------+
| +----------------------------------------------------------+ | |
+-----------------------------------------------------------+ |
| | | | | |
| |
| | guest | | | |
guest | |
| | | | | |
| |
| +-------^--------------------------+-----------------------+ | |
+---------------------+--------+----------------------------+ |
| | | | |
^ | |
| | | | |
| | |
| | +------------------------------------------------------+ |
| | |
|netfilter| | | | | |
netfilter | | |
| +----------+ +----------------------------+ | | |
+-----------------------------------------------------------+ |
| | | | | | out | | | |
| | filter excute order | |
| | | | +-----------------------------+ | | | |
| | +-------------------> | |
| | | | | | | | | | | |
| | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | |
+------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | |
| | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +-------->
filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | |
redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | |
| | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | |
+------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | |
tx all | rx | |
| | | | | | | |
+-----------------------------------------------------------+ |
| | | +--------------+ | | | |
| |
| | | filter excute order | | | | |
| |
| | | +----------------> | | |
+--------------------------------------------------------+ |
| +-----------------------------------------+ | |
|
| | | | |
|
+--------------------------------------------------------------+
+----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| |
NOTE: filter direction is rx/tx/all
| tap |
rx:receive packets sent to the netdev
| |
tx:receive packets sent by the netdev
+--------------------------------------------------------------+
You can know the detail from here:
http://wiki.qemu.org/Features/COLO
https://github.com/qemu/qemu/blob/master/docs/colo-proxy.txt
V4:
- Because the origin 3/7 has been merged,
remove it in this series.
- Add new patch "COLO-Proxy: Add colo-compare notify args"
to support qemu side patch:
https://lists.nongnu.org/archive/html/qemu-devel/2017-02/msg07265.html
- Add colo_userspace_proxy macro as a separate patch.
- Add some comments about COLO and fix some typo in patch 2/7.
- Fix some bug and typo in patch 7/7.
- Rebase codes on upstream Xen.
V3:
- remove the 'RFC' tag.
- fix some bug in patch 7/7.
- fix codestyle.
V2:
- Address wei's comments, use macro to reuse codes.
- Do some work on the last patch.
- Fix some typo.
- Add LIBXL_HAVE_COLO_USERSPACE_PROXY macro in libxl.h.
- Some bug fix.
V1:
- Initial patch
Zhang Chen (8):
COLO-Proxy: Add remus command to open userspace proxy
COLO-Proxy: Setup userspace colo-proxy on primary side
COLO-Proxy: Setup userspace colo-proxy on secondary side
COLO-Proxy: Add primary userspace colo proxy start args
COLO-Proxy: Add secondary userspace colo-proxy start args
COLO-Proxy: Add colo-compare notify args
COLO-Proxy: Use socket to get checkpoint event.
COLO-proxy: Add colo_userspace_proxy macro
docs/man/xl.pod.1.in | 5 ++
tools/libxl/libxl.h | 6 ++
tools/libxl/libxl_colo.h | 7 ++
tools/libxl/libxl_colo_proxy.c | 149 +++++++++++++++++++++++++++++++++++++++
tools/libxl/libxl_colo_restore.c | 19 +++--
tools/libxl/libxl_colo_save.c | 18 ++++-
tools/libxl/libxl_create.c | 8 ++-
tools/libxl/libxl_dm.c | 138 ++++++++++++++++++++++++++++++++++++
tools/libxl/libxl_nic.c | 117 ++++++++++++++++++++++++++++++
tools/libxl/libxl_types.idl | 68 +++++++++++++++---
tools/xl/xl.h | 1 +
tools/xl/xl_cmdtable.c | 3 +-
tools/xl/xl_migrate.c | 28 ++++++--
tools/xl/xl_parse.c | 97 +++++++++++++++++++++++++
tools/xl/xl_vmcontrol.c | 2 +
15 files changed, 642 insertions(+), 24 deletions(-)
--
2.7.4
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