Re: [PATCH v4 2/4] kvmtool: ARM64: Add target type potenza for aarch64

[Andre Przywara <andre.przywara@arm.com>]

On 19/09/14 00:57, Anup Patel wrote:
> The VCPU target type KVM_ARM_TARGET_XGENE_POTENZA is available
> in latest Linux-3.16-rcX or higher hence register aarch64 target
> type for it.
>
> This patch enables us to run KVMTOOL on X-Gene Potenza host.

I still don't like the addition of another CPU, but for the sake of
running older kernels (which seems to have a use-case in your case) I am
OK with this.
Maybe it's worth adding a comment which states that this list is
"closed" and just provided to support older kernels?
So that other SoCs don't get funny ideas... ;-)

Cheers,
Andre.

>
> Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar@linaro.org>
> Signed-off-by: Anup Patel <anup.patel@linaro.org>
> ---
>  tools/kvm/arm/aarch64/arm-cpu.c |    9 ++++++++-
>  1 file changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/tools/kvm/arm/aarch64/arm-cpu.c b/tools/kvm/arm/aarch64/arm-cpu.c
> index 9ee3da3..51a1e2f 100644
> --- a/tools/kvm/arm/aarch64/arm-cpu.c
> +++ b/tools/kvm/arm/aarch64/arm-cpu.c
> @@ -46,11 +46,18 @@ static struct kvm_arm_target target_cortex_a57 = {
>       .init           = arm_cpu__vcpu_init,
>  };
>
> +static struct kvm_arm_target target_potenza = {
> +     .id             = KVM_ARM_TARGET_XGENE_POTENZA,
> +     .compatible     = "arm,arm-v8",
> +     .init           = arm_cpu__vcpu_init,
> +};
> +
>  static int arm_cpu__core_init(struct kvm *kvm)
>  {
>       return (kvm_cpu__register_kvm_arm_target(&target_generic_v8) ||
>               kvm_cpu__register_kvm_arm_target(&target_aem_v8) ||
>               kvm_cpu__register_kvm_arm_target(&target_foundation_v8) ||
> -             kvm_cpu__register_kvm_arm_target(&target_cortex_a57));
> +             kvm_cpu__register_kvm_arm_target(&target_cortex_a57) ||
> +             kvm_cpu__register_kvm_arm_target(&target_potenza));
>  }
>  core_init(arm_cpu__core_init);
>

-- IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium.  Thank you.

ARM Limited, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered in England & Wales, Company No:  2557590
ARM Holdings plc, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered in England & Wales, Company No:  2548782