On 11/24/2010 08:18 AM, Anthony Liguori wrote:
On 11/24/2010 06:59 AM, Alexander Graf wrote:
On 24.11.2010, at 11:52, Avi Kivity wrote:
Introduce exception-safe objects for calling system, vm, and vcpu
ioctls.
Signed-off-by: Avi Kivity<a...@redhat.com>
FWIW, I still disagree with C++ and believe this code to be hardly
readable.
Take a look at http://repo.or.cz/w/qemupp.git
repo.or.cz seems to be down so:
http://git.qemu.org/qemupp.git/
Regards,
Anthony Liguori
Start with test/test-mc146818a.cpp
This test infrastructure is arguably a bad place to start because it
doesn't benefit really at all from C++. The object hierarchy is
extremely simple and most of the time you're interfacing with legacy C
interfaces so a lot of effort is spent bridging those interfaces.
OTOH, the device models interact very little with the external world
and the object model is complex is subtle ways. I think C++ is a much
better fit there.
In the above repo, I've converted the PIT, RTC, keyboard controller,
and have started working on the i440fx. The i440fx is a lot of work
but it's also one of the more interesting devices to try and model
correctly.
For all devices, there are very intensive unit tests that use
fuzzing. I hope to have something postable for serious consideration
by the end of the year.
BTW, given the ability to test programmatically, I ended up rewriting
a good bit of the PIT and RTC. The way that the unit conversion is
handled right now in QEMU is a train wreck. The new version is much
more accurate and as a consequence, the interrupt catch up logic is
much more precise. There are also three different catch up algorithms
that are selectable at run time.
This is all tested with a time simulation that can simulate random
amounts of drift over random periods of time.
Regards,
Anthony Liguori
Alex
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