On 1/1/2025 9:49 PM, Borislav Petkov wrote: > On Wed, Jan 01, 2025 at 03:14:12PM +0530, Nikunj A. Dadhania wrote: >> I can drop this patch, and if the admin wants to change the clock >> source to kvm-clock from Secure TSC, that will be permitted. > > Why would the admin want that and why would we even support that? I am not saying that admin will do that, I am saying that it is a possibility. Changing clocksource is supported via sysfs interface: echo "kvm-clock" > /sys/devices/system/clocksource/clocksource0/current_clocksource This is what we are trying to prevent in this patch. Regards, Nikunj