Re: [PATCH v19 6/7] KVM: arm64: Add support for the KVM PTP service

Marc Zyngier
2021-04-17T09:10:53Z

On Sat, 17 Apr 2021 09:59:39 +0100,
Zenghui Yu <yuzenghui@huawei.com> wrote:
>
> On 2021/3/30 22:54, Marc Zyngier wrote:
> > +PTP_KVM support for arm/arm64
> > +=============================
> > +
> > +PTP_KVM is used for high precision time sync between host and guests.
> > +It relies on transferring the wall clock and counter value from the
> > +host to the guest using a KVM-specific hypercall.
> > +
> > +* ARM_SMCCC_HYP_KVM_PTP_FUNC_ID: 0x86000001
>
> Per include/linux/arm-smccc.h, this should be
> ARM_SMCCC_VENDOR_HYP_KVM_PTP_FUNC_ID.

Well spotted. Care to send a patch on top of my kvm-arm64/ptp branch?

Thanks,

M.

--
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