On Thu, 18 Mar 2021 14:11:44 +0000, Will Deacon <will@xxxxxxxxxx> wrote: > > On Thu, Mar 18, 2021 at 12:25:30PM +0000, Marc Zyngier wrote: > > ZCR_EL2 controls the upper bound for ZCR_EL1, and is set to > > a potentially lower limit when the guest uses SVE. In order > > to restore the SVE state on the EL1 host, we must first > > reset ZCR_EL2 to its original value. > > > > To make it as lazy as possible on the EL1 host side, set > > the SVE trapping in place when returning exiting from > > "returning exiting"? Meh. Kept the latter. Thanks, M. -- Without deviation from the norm, progress is not possible.
