Signed-off-by: NYumei Huang <yuhuang@redhat.com>

Clean up imports across the board in tp-qemu. The criteria
followed was:

1) Remove unnecessary imports
2) Turn multi imports from a single entry point to one
   import per line. This increases both patch and
   source code readability.
3) Separate blocks of imports with a line:
   * Python standard library imports
   * Autotest imports
   * virttest imports
   * Internal tp-qemu imports
4) Remove try/except blocks refering autotest libs and
   stick with the virttest.staging copy

This paves the way for the future removal of autotest
references, replacing those references with avocado ones.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

There's no need to have the name of the "run_<name>" method (main
test entry point) depend on the test name. So, for simplicity sake,
let's just name the test entry point "run".

I have decided to not fallback gracefully to the previous naming
convention as I believe this can lead to confusion in the future.
Signed-off-by: NCleber Rosa <crosa@redhat.com>

In order to make the utils_test module more maintainable,
split the qemu tests specific functions to the module
utils_test.qemu. Of course, eventually modules specific
to other test types, such as libvirt, v2v and the such
can be also carried.

All the API references were fixed, and functions that
were mentioned in a single test module were moved to
said test module.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

As module under virttest.staging may include some functions that is
not in autotest package yet. So we should import them first. Otherwise
the new modification and functions may can not be found during test.
Signed-off-by: NYiqiao Pu <ypu@redhat.com>

Make virt-test to have a docstring style mostly compliant with
the sphinx's [1] format, reStructured text. This means that
we have to trade all '@' tags to be ':', mostly.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

With the help of the PEP8 script, a semi-automated clean
of the code base was made, and effectively changing some
of the coding style rules of our code base:

 * No more 2 lines spacing among functions
 * No more combined module imports

In the end, it was going to be too difficult to take
into consideration E501 (line length > 80) errors and
W601 (.has_key() is deprecated), so these were ignored,
at least for now.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

Using the program codespell

https://github.com/lucasdemarchi/codespell

We found a number of spelling mistakes, that could be
found and fixed. The result of the automated script
was double checked, of course.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

Get host numa topology. Start and bind guest to the cpu in each node
one by one. Then check the memory status for qemu process.
The qemu process should mainly used the memory from the node that it
is binded to.
Signed-off-by: NYiqiao Pu <ypu@redhat.com>