On 10/26/20 9:51 AM, Marc Zyngier wrote: > Setting PSTATE.PAN when entering EL2 on nVHE doesn't make much > sense as this bit only means something for translation regimes > that include EL0. This obviously isn't the case in the nVHE case, > so let's drop this setting. > > Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx> > --- > arch/arm64/kvm/hyp/nvhe/host.S | 2 -- > 1 file changed, 2 deletions(-) > > diff --git a/arch/arm64/kvm/hyp/nvhe/host.S b/arch/arm64/kvm/hyp/nvhe/host.S > index ff9a0f547b9f..ed27f06a31ba 100644 > --- a/arch/arm64/kvm/hyp/nvhe/host.S > +++ b/arch/arm64/kvm/hyp/nvhe/host.S > @@ -17,8 +17,6 @@ SYM_FUNC_START(__host_exit) > > get_host_ctxt x0, x1 > > - ALTERNATIVE(nop, SET_PSTATE_PAN(1), ARM64_HAS_PAN, CONFIG_ARM64_PAN) > - > /* Store the host regs x2 and x3 */ > stp x2, x3, [x0, #CPU_XREG_OFFSET(2)] > > It was originally introduced in cb96408da4e1 (arm64: KVM: VHE: reset PSTATE.PAN on entry to EL2) and indeed only applies to VHE (I even remember some attempts to put in under CONFIG_ARM64_VHE). So, if it helps: Reviewed-by: Vladimir Murzin <vladimir.murzin@xxxxxxx> Cheers Vladimir _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm