On Wed, Jul 25, 2018 at 12:50:45PM +0100, Dave Martin wrote: > > > + if (system_supports_sve() && guest_has_sve) > > As elsewhere, the system_supports_sve() check uses a static key and > should be very cheap (or free in a CONFIG_ARM64_SVE=n kernel). > Yup, I'm clear on that now. Thanks again for explaining. It might be nice for a small helper function in this case in order to avoid the 'system_supports_sve() &&' everywhere and the chance that the order of the checks gets swapped during some code refactoring someday. Thanks, drew _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm