Re: [PATCH 0/8] Nested SVM unit tests

Roedel, Joerg
2010-07-28T11:41:12Z

On Wed, Jul 28, 2010 at 06:18:19AM -0400, Avi Kivity wrote:
> The following patchset adds a framework for nested SVM unit testing. As
> you may guess, future fixes and enhancements to nested SVM will require
> matching tests.

Cool stuff. I guess the third test failed (vmrun intercept check),
should be easy to fix. This is generally a very useful thing.

> Currently, our nested SVM implementation has a 66.67% success rate using
> these tests.

Okay, thats the downside :-) Anyway, are KVM changes not realated to
nested-svm required to pass these tests too?
How about fixes for race conditions? We had bugs in the past with lost
interrupts in the L2 guest which only showed up under very special
conditions that may be hard to reproduce directly. They may depend on an
L1 interrupt becoming pending for example.
(And I think we still have one bug in this area left which is not yet
root-caused)

Joerg

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Joerg Roedel - AMD Operating System Research Center

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