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@xxxxxxxxxx>
> ---
> 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
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