On Mon, Jul 28, 2025 at 10:20 PM Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote: > > Il lun 28 lug 2025, 18:21 Anup Patel <apatel@xxxxxxxxxxxxxxxx> ha scritto: > > > > Currently, userspace only has a way to enable/disable the entire > > SBI FWFT extension. We definitely need to extend ONE_REG > > interface to allow userspace save/restore SBI FWFT state. I am > > sure this will happen pretty soon (probably next merge window). > > > > At the moment, I am not sure whether userspace also needs a > > way to enable/disable individual features of SBI FWFT extension. > > What do you think ? > > Yes, you do. FWFT extensions are equivalent to CPU extensions. But all > this should have been done before including Clement's work. Without it > userspace has no way to support FWFT. > > Drew, I see you have Reviewed-by on the patches; please keep an eye on > this stuff. > > Can you respin with the fix to the SoB line and no FWFT support? Sure, I will send v2 PR. Regards, Anup