On Mon, Feb 06, 2023 at 06:15:16PM +0000, Sean Christopherson wrote: > 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. Looks like arm64 defconfig enables THP and hugetlb. Regardless, I think it would be valuable if our Kconfig fragment expressed the options that buy us additional code coverage. -- Thanks, Oliver
