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From: Marc Zyngier <maz@kernel.org>
To: Zenghui Yu <yuzenghui@huawei.com>
Cc: <netdev@vger.kernel.org>, <yangbo.lu@nxp.com>,
	<john.stultz@linaro.org>, <tglx@linutronix.de>,
	<pbonzini@redhat.com>, <seanjc@google.com>,
	<richardcochran@gmail.com>, <Mark.Rutland@arm.com>,
	<will@kernel.org>, <suzuki.poulose@arm.com>,
	<Andre.Przywara@arm.com>, <steven.price@arm.com>,
	<lorenzo.pieralisi@arm.com>, <sudeep.holla@arm.com>,
	<justin.he@arm.com>, <kvm@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>, <kernel-team@android.com>,
	<kvmarm@lists.cs.columbia.edu>,
	<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v19 6/7] KVM: arm64: Add support for the KVM PTP service
Date: Sat, 17 Apr 2021 10:10:47 +0100	[thread overview]
Message-ID: <87v98ls2co.wl-maz@kernel.org> (raw)
In-Reply-To: <5aadf0b4-b9e5-8521-db60-52a0f319cf28@huawei.com>

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.

-- 
Without deviation from the norm, progress is not possible.

WARNING: multiple messages have this Message-ID (diff)
From: Marc Zyngier <maz@kernel.org>
To: Zenghui Yu <yuzenghui@huawei.com>
Cc: kernel-team@android.com, lorenzo.pieralisi@arm.com,
	justin.he@arm.com, kvm@vger.kernel.org, netdev@vger.kernel.org,
	richardcochran@gmail.com, yangbo.lu@nxp.com,
	sudeep.holla@arm.com, steven.price@arm.com,
	Andre.Przywara@arm.com, john.stultz@linaro.org,
	linux-arm-kernel@lists.infradead.org, seanjc@google.com,
	pbonzini@redhat.com, tglx@linutronix.de, will@kernel.org,
	kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v19 6/7] KVM: arm64: Add support for the KVM PTP service
Date: Sat, 17 Apr 2021 10:10:47 +0100	[thread overview]
Message-ID: <87v98ls2co.wl-maz@kernel.org> (raw)
In-Reply-To: <5aadf0b4-b9e5-8521-db60-52a0f319cf28@huawei.com>

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.

-- 
Without deviation from the norm, progress is not possible.
_______________________________________________
kvmarm mailing list
kvmarm@lists.cs.columbia.edu
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm

WARNING: multiple messages have this Message-ID (diff)
From: Marc Zyngier <maz@kernel.org>
To: Zenghui Yu <yuzenghui@huawei.com>
Cc: <netdev@vger.kernel.org>, <yangbo.lu@nxp.com>,
	<john.stultz@linaro.org>, <tglx@linutronix.de>,
	<pbonzini@redhat.com>, <seanjc@google.com>,
	<richardcochran@gmail.com>, <Mark.Rutland@arm.com>,
	<will@kernel.org>, <suzuki.poulose@arm.com>,
	<Andre.Przywara@arm.com>, <steven.price@arm.com>,
	<lorenzo.pieralisi@arm.com>, <sudeep.holla@arm.com>,
	<justin.he@arm.com>, <kvm@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>, <kernel-team@android.com>,
	<kvmarm@lists.cs.columbia.edu>,
	<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v19 6/7] KVM: arm64: Add support for the KVM PTP service
Date: Sat, 17 Apr 2021 10:10:47 +0100	[thread overview]
Message-ID: <87v98ls2co.wl-maz@kernel.org> (raw)
In-Reply-To: <5aadf0b4-b9e5-8521-db60-52a0f319cf28@huawei.com>

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.

-- 
Without deviation from the norm, progress is not possible.

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2021-04-17  9:10 UTC|newest]

Thread overview: 75+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-30 14:54 [PATCH v19 0/7] KVM: arm64: Add host/guest KVM-PTP support Marc Zyngier
2021-03-30 14:54 ` Marc Zyngier
2021-03-30 14:54 ` Marc Zyngier
2021-03-30 14:54 ` [PATCH v19 1/7] arm/arm64: Probe for the presence of KVM hypervisor Marc Zyngier
2021-03-30 14:54   ` Marc Zyngier
2021-03-30 14:54   ` Marc Zyngier
2021-04-17  9:49   ` Zenghui Yu
2021-04-17  9:49     ` Zenghui Yu
2021-04-17  9:49     ` Zenghui Yu
2021-03-30 14:54 ` [PATCH v19 2/7] KVM: arm64: Advertise KVM UID to guests via SMCCC Marc Zyngier
2021-03-30 14:54   ` Marc Zyngier
2021-03-30 14:54   ` Marc Zyngier
2021-03-30 14:54 ` [PATCH v19 3/7] ptp: Reorganize ptp_kvm.c to make it arch-independent Marc Zyngier
2021-03-30 14:54   ` Marc Zyngier
2021-03-30 14:54   ` Marc Zyngier
2021-04-07  9:28   ` Marc Zyngier
2021-04-07  9:28     ` Marc Zyngier
2021-04-07  9:28     ` Marc Zyngier
2021-04-07 15:13     ` Richard Cochran
2021-04-07 15:13       ` Richard Cochran
2021-04-07 15:13       ` Richard Cochran
2021-04-07 15:31       ` Marc Zyngier
2021-04-07 15:31         ` Marc Zyngier
2021-04-07 15:31         ` Marc Zyngier
2021-03-30 14:54 ` [PATCH v19 4/7] time: Add mechanism to recognize clocksource in time_get_snapshot Marc Zyngier
2021-03-30 14:54   ` Marc Zyngier
2021-03-30 14:54   ` Marc Zyngier
2021-04-17  9:27   ` Zenghui Yu
2021-04-17  9:27     ` Zenghui Yu
2021-04-17  9:27     ` Zenghui Yu
2021-03-30 14:54 ` [PATCH v19 5/7] clocksource: Add clocksource id for arm arch counter Marc Zyngier
2021-03-30 14:54   ` Marc Zyngier
2021-03-30 14:54   ` Marc Zyngier
2021-03-30 14:54 ` [PATCH v19 6/7] KVM: arm64: Add support for the KVM PTP service Marc Zyngier
2021-03-30 14:54   ` Marc Zyngier
2021-03-30 14:54   ` Marc Zyngier
2021-04-17  8:59   ` Zenghui Yu
2021-04-17  8:59     ` Zenghui Yu
2021-04-17  8:59     ` Zenghui Yu
2021-04-17  9:10     ` Marc Zyngier [this message]
2021-04-17  9:10       ` Marc Zyngier
2021-04-17  9:10       ` Marc Zyngier
2021-04-17 10:24       ` Zenghui Yu
2021-04-17 10:24         ` Zenghui Yu
2021-04-17 10:24         ` Zenghui Yu
2021-03-30 14:54 ` [PATCH v19 7/7] ptp: arm/arm64: Enable ptp_kvm for arm/arm64 Marc Zyngier
2021-03-30 14:54   ` Marc Zyngier
2021-03-30 14:54   ` Marc Zyngier
2021-04-17  8:42   ` Zenghui Yu
2021-04-17  8:42     ` Zenghui Yu
2021-04-17  8:42     ` Zenghui Yu
2021-04-17  9:05     ` Marc Zyngier
2021-04-17  9:05       ` Marc Zyngier
2021-04-17  9:05       ` Marc Zyngier
2021-05-11  9:07   ` Geert Uytterhoeven
2021-05-11  9:07     ` Geert Uytterhoeven
2021-05-11  9:07     ` Geert Uytterhoeven
2021-05-11  9:13     ` Marc Zyngier
2021-05-11  9:13       ` Marc Zyngier
2021-05-11  9:13       ` Marc Zyngier
2021-05-26  7:52       ` Geert Uytterhoeven
2021-05-26  7:52         ` Geert Uytterhoeven
2021-05-26  7:52         ` Geert Uytterhoeven
2021-05-26  8:01         ` Marc Zyngier
2021-05-26  8:01           ` Marc Zyngier
2021-05-26  8:01           ` Marc Zyngier
2021-05-26  8:18           ` Geert Uytterhoeven
2021-05-26  8:18             ` Geert Uytterhoeven
2021-05-26  8:18             ` Geert Uytterhoeven
2021-05-26  8:32             ` Marc Zyngier
2021-05-26  8:32               ` Marc Zyngier
2021-05-26  8:32               ` Marc Zyngier
2021-05-26  8:50               ` Geert Uytterhoeven
2021-05-26  8:50                 ` Geert Uytterhoeven
2021-05-26  8:50                 ` Geert Uytterhoeven

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