Re: [PATCH V4 0/5] Introduce Advanced Watch Dog module

["Zhang, Chen" <chen.zhang@intel.com>]

Hi All,

No news for a while about this series.

This version already add new docs to address Paolo's comments.

Please give me more comments.


Thanks

Zhang Chen


On 12/17/2019 8:45 PM, Zhang, Chen wrote:
> From: Zhang Chen <chen.zhang@intel.com>
>
> Advanced Watch Dog is an universal monitoring module on VMM side, it can be used
> to detect network down(VMM to guest, VMM to VMM, VMM to another remote server)
> and do previously set operation. Current AWD patch just accept any input as the
> signal to refresh the watchdog timer, and we can also make a certain interactive
> protocol here. For the outputs, user can pre-write some command or some messages
> in the AWD opt-script. We noticed that there is no way for VMM communicate
> directly, maybe some people think we don't need such things(up layer
> software like openstack can handle it). so we engaged with real customer found
> that they need a lightweight and efficient mechanism to solve some practical problems,
>
> For example Edge Computing cases(they think high level software is too heavy
> to use in Edge or it is hard to manage and combine with VM instance).
> It make user have basic VM/Host network monitoring tools and basic false
> tolerance and recovery solution..
>
> Please see the detail documentation in the last patch.
>
> V4:
>   - Add more introduction in qemu-options.hx
>   - Addressed Paolo's comments add docs/awd.txt for the AWD module detail.
>
> V3:
>   - Rebased on Qemu 4.2.0-rc1 code.
>   - Fix commit message issue.
>
> V2:
>   - Addressed Philippe comments add configure selector for AWD.
>
> Initial:
>   - Initial version.
>
>
> Zhang Chen (5):
>    net/awd.c: Introduce Advanced Watch Dog module framework
>    net/awd.c: Initailize input/output chardev
>    net/awd.c: Load advanced watch dog worker thread job
>    vl.c: Make Advanced Watch Dog delayed initialization
>    docs/awd.txt: Add doc to introduce Advanced WatchDog(AWD) module
>
>   configure         |   9 +
>   docs/awd.txt      |  88 +++++++++
>   net/Makefile.objs |   1 +
>   net/awd.c         | 491 ++++++++++++++++++++++++++++++++++++++++++++++
>   qemu-options.hx   |  20 ++
>   vl.c              |   7 +
>   6 files changed, 616 insertions(+)
>   create mode 100644 docs/awd.txt
>   create mode 100644 net/awd.c
>