[PATCH 2/3] KVM: arm64: Rename access_amu() to undef_access()

[Will Deacon]

On Tue, Nov 03, 2020 at 05:14:44PM +0000, Marc Zyngier wrote:
> The only thing that access_amu() does is to inject an UNDEF exception,
> so let's rename it to the clearer undef_access(). We'll reuse that
> for some other system registers.
> 
> Signed-off-by: Marc Zyngier <maz at kernel.org>
> ---
>  arch/arm64/kvm/sys_regs.c | 28 ++++++++++++++--------------
>  1 file changed, 14 insertions(+), 14 deletions(-)
> 
> diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
> index 61789027b92b..fafaa81bf1f6 100644
> --- a/arch/arm64/kvm/sys_regs.c
> +++ b/arch/arm64/kvm/sys_regs.c
> @@ -1038,8 +1038,8 @@ static bool access_pmuserenr(struct kvm_vcpu *vcpu, struct sys_reg_params *p,
>  	{ SYS_DESC(SYS_PMEVTYPERn_EL0(n)),					\
>  	  access_pmu_evtyper, reset_unknown, (PMEVTYPER0_EL0 + n), }
>  
> -static bool access_amu(struct kvm_vcpu *vcpu, struct sys_reg_params *p,
> -			     const struct sys_reg_desc *r)
> +static bool undef_access(struct kvm_vcpu *vcpu, struct sys_reg_params *p,
> +			 const struct sys_reg_desc *r)
>  {
>  	kvm_inject_undefined(vcpu);

This seems to be identical to trap_ptrauth(). Shall we give it the same
treatment?

Will