On Mon, Feb 06, 2023, Oliver Upton wrote: > +cc x86, riscv as they're also affected. > > On Thu, Feb 02, 2023 at 09:01:36PM +0000, Mark Brown wrote: > > The page_fault_test KVM selftest requires userfaultfd but the config > > fragment for the KVM selftests does not enable it, meaning that those tests > > are skipped in CI systems that rely on appropriate settings in the config > > fragments except on S/390 which happens to have it in defconfig. Enable > > the option in the config fragment so that the tests get run. What do CI systems do for HugeTLB and THP? Those are the other config options I can think of where there are very interesting interactions from a KVM perspective, but where KVM doesn't have a strict dependency on the feature. E.g. x86_64_defconfig selects CONFIG_HUGETLBFS=y, but I don't see anything for THP, and AFAICT TRANSPARENT_HUGEPAGE is default=n. > Thanks for catching this. > > I believe we also need UFFD for demand_paging_test, which is used by all > the KVM selftests arches. I plan on picking this up, but if anyone has > objections please shout :) All yours. Reviewed-by: Sean Christopherson <seanjc@xxxxxxxxxx>
