Re: [RFC PATCH v4 3/5] psci: Add hvc call service for ptp_kvm.

[Sergei Shtylyov]

Hello!

On 26.09.2019 14:42, Jianyong Wu wrote:

> This patch is the base of ptp_kvm for arm64.
> ptp_kvm modules will call hvc to get this service.
> The service offers real time and counter cycle of host for guest.
>
> Signed-off-by: Jianyong Wu <jianyong.wu@xxxxxxx>
> ---
>   include/linux/arm-smccc.h | 12 ++++++++++++
>   virt/kvm/arm/psci.c       | 18 ++++++++++++++++++
>   2 files changed, 30 insertions(+)

[...]
> diff --git a/virt/kvm/arm/psci.c b/virt/kvm/arm/psci.c
> index 0debf49bf259..3f30fc42a5ca 100644
> --- a/virt/kvm/arm/psci.c
> +++ b/virt/kvm/arm/psci.c
[...]
> @@ -431,6 +433,22 @@ int kvm_hvc_call_handler(struct kvm_vcpu *vcpu)
>   	case ARM_SMCCC_VENDOR_HYP_KVM_FEATURES_FUNC_ID:
>   		val[0] = BIT(ARM_SMCCC_KVM_FUNC_FEATURES);
>   		break;
> +	/*
> +	 * This will used for virtual ptp kvm clock. three
                    ^ be?                            ^ T

[...]

MBR, Sergei