Hi Andrew,

On Monday 03 Aug 2020 at 10:17:56 (+0200), Andrew Jones wrote:

On Thu, Jul 30, 2020 at 04:33:46PM +0100, Will Deacon wrote:

quoted

In terms of testing, I've done the usual Debian installer type things, but
Quentin has also written targetted guest code [1] which we used to
exercise dirty logging page-table collapse and coalescing.

...

quoted

[1] https://android-kvm.googlesource.com/misc/+/refs/heads/qperret/pgtable-test

Hi Quentin,

Any reason you didn't look into extending

 tools/testing/selftests/kvm/dirty_log_test

and, if necessary, the AArch64 KVM selftests framework?

I did run this particular test, but it didn't seem to exercise the code
paths I wanted at the time, so I went with a custom-made implementation
only to get this patch series out of the door as quickly as possible.

But I have no plan to maintain / push this further, and we should
definitely be looking at extending the selftest instead to cover this
use-case. I'll try to get to it at some point but there are a few things
I need to finish off first :)

I hope that helps!

Thanks,
Quentin

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