On Mon, 22 Jan 2024 16:28:05 +0000, Mark Brown <broonie@xxxxxxxxxx> wrote: > > FEAT_FPMR provides a new generally accessible architectural register FPMR. > This is only accessible to EL0 and EL1 when HCRX_EL2.EnFPM is set to 1, > do this when the host is running. The guest part will be done along with > context switching the new register and exposing it via guest management. > > Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> > --- > arch/arm64/include/asm/kvm_arm.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h > index 3c6f8ba1e479..7f45ce9170bb 100644 > --- a/arch/arm64/include/asm/kvm_arm.h > +++ b/arch/arm64/include/asm/kvm_arm.h > @@ -105,7 +105,7 @@ > #define HCRX_GUEST_FLAGS \ > (HCRX_EL2_SMPME | HCRX_EL2_TCR2En | \ > (cpus_have_final_cap(ARM64_HAS_MOPS) ? (HCRX_EL2_MSCEn | HCRX_EL2_MCE2) : 0)) > -#define HCRX_HOST_FLAGS (HCRX_EL2_MSCEn | HCRX_EL2_TCR2En) > +#define HCRX_HOST_FLAGS (HCRX_EL2_MSCEn | HCRX_EL2_TCR2En | HCRX_EL2_EnFPM) > > /* TCR_EL2 Registers bits */ > #define TCR_EL2_DS (1UL << 32) > Acked-by: Marc Zyngier <maz@xxxxxxxxxx> M. -- Without deviation from the norm, progress is not possible.
