diff options
| author | Ben Gardon <[email protected]> | 2023-01-31 18:18:20 +0000 |
|---|---|---|
| committer | Sean Christopherson <[email protected]> | 2023-06-01 14:03:19 -0700 |
| commit | dfa78a20cc879205b2c6239300dac09907ad3da1 (patch) | |
| tree | 2f5a33805d75a385b9bc739a363ea166a9d05a3b /tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace | |
| parent | de10b798055db5df93474cdfa5dbffc57169f458 (diff) | |
KVM: selftests: Add dirty logging page splitting test
Add a test for page splitting during dirty logging and for hugepage
recovery after dirty logging.
Page splitting represents non-trivial behavior, which is complicated
by MANUAL_PROTECT mode, which causes pages to be split on the first
clear, instead of when dirty logging is enabled.
Add a test which makes assertions about page counts to help define the
expected behavior of page splitting and to provide needed coverage of the
behavior. This also helps ensure that a failure in eager page splitting
is not covered up by splitting in the vCPU path.
Tested by running the test on an Intel Haswell machine w/wo
MANUAL_PROTECT.
Reviewed-by: Vipin Sharma <[email protected]>
Signed-off-by: Ben Gardon <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
[sean: let the user run without hugetlb, as suggested by Paolo]
Signed-off-by: Sean Christopherson <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
0 files changed, 0 insertions, 0 deletions