How to play Kemari?

What is required for running Kemari?

Download Kemari-version Xen source code.

$ hg clone http://xenbits.xensource.com/ext/kemari/kemari-v1-unstable.hg

Download Kemari-version Linux source code.

$ hg clone http://xenbits.xensource.com/ext/kemari/linux-2.6.18-xen.hg

Build (the same as Xen itself).

$ cd kemari-v1-unstable.hg
$ make dist
# sudo make install

Set up grub.conf and so on (the same as Xen itself).
Create HVM guest domain. Disk image should be in a shared storage.
Install PV driver to the HVM guest domain.
(Caution: you MUST use PV driver from kemari-v1-unstable. SHOULD NOT use package not based on kemari-v1-unstable.)

Migrate your HVM domain with Kemari option.
Almost same as normal migration command. Only the difference is adding '--kemari'.
```
# xm migrate <domid> <destination hostname> --kemari &

e.g.)
# xm migrate 1 host01.example.jp --kemari &
```
Since the command line will wait until the domain die, you need to execute 'xm migrate ... --kemari' in the background, or using GNU screen.
Wait, wait, and wait ... until your domain gets unpaused.
For checking whether your domain is unpaused or not, using xentop might be a good idea.
```
# xentop
```
You will see status change from ----p- to --b--- or -----r.
Find out the process ID of xc_kemari_restore at the destination host.
```
destination# ps ax| grep xc_kemari_restore
```
Ready to Die.
Let's push the reset button of source machine, and send signal HUP to xc_kemari_restore at the destination machine.
```
# kill_source_machine.sh
destination# kill -HUP <PID of xc_kemari_restore>
```
Then, you will see the guest domain running on destination machine :)