Messages in this thread | | | Subject | Re: [PATCH v19 6/7] KVM: arm64: Add support for the KVM PTP service | From | Zenghui Yu <> | Date | Sat, 17 Apr 2021 18:24:49 +0800 |
| |
On 2021/4/17 17:10, Marc Zyngier wrote: > 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?
Okay. I'll have a patch for that.
Zenghui
| |