On Mon, Nov 29, 2021 at 08:00:48PM +0000, Marc Zyngier wrote: > From: Christoffer Dall <christoffer.dall@xxxxxxx> > > Introduce the feature bit and a primitive that checks if the feature is > set behind a static key check based on the cpus_have_const_cap check. > > Checking nested_virt_in_use() on systems without nested virt enabled > should have neglgible overhead. > > We don't yet allow userspace to actually set this feature. > > Signed-off-by: Christoffer Dall <christoffer.dall@xxxxxxx> > Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx> Reviewed-by: Russell King (Oracle) <rmk+kernel@xxxxxxxxxxxxxxx> -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!
