[PATCH v2 1/6] KVM: selftests: arm64: Initialise default guest mode at test startup time

[Andrew Jones]

On Mon, Dec 27, 2021 at 12:48:04PM +0000, Marc Zyngier wrote:
> As we are going to add support for a variable default mode on arm64,
> let's make sure it is setup first by using a constructor that gets
> called before the actual test runs.
> 
> Suggested-by: Andrew Jones <drjones at redhat.com>
> Signed-off-by: Marc Zyngier <maz at kernel.org>
> ---
>  tools/testing/selftests/kvm/lib/aarch64/processor.c | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/tools/testing/selftests/kvm/lib/aarch64/processor.c b/tools/testing/selftests/kvm/lib/aarch64/processor.c
> index b4eeeafd2a70..b509341b8411 100644
> --- a/tools/testing/selftests/kvm/lib/aarch64/processor.c
> +++ b/tools/testing/selftests/kvm/lib/aarch64/processor.c
> @@ -432,3 +432,12 @@ uint32_t guest_get_vcpuid(void)
>  {
>  	return read_sysreg(tpidr_el1);
>  }
> +
> +/*
> + * arm64 doesn't have a true default mode, so start by computing the
> + * available IPA space and page sizes early.
> + */
> +void __attribute__((constructor)) init_guest_modes(void)
> +{
> +       guest_modes_append_default();
> +}
> -- 
> 2.30.2
>

Reviewed-by: Andrew Jones <drjones at redhat.com>