From: Marc Zyngier <maz@kernel.org>
To: "Jürgen Groß" <jgross@suse.com>
Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
Catalin Marinas <catalin.marinas@arm.com>,
linux-doc@vger.kernel.org, Russell King <linux@armlinux.org.uk>,
Steven Price <steven.price@arm.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Will Deacon <will@kernel.org>,
kvmarm@lists.cs.columbia.edu,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v6 10/10] arm64: Retrieve stolen time as paravirtualized guest
Date: Mon, 21 Oct 2019 08:55:50 +0100 [thread overview]
Message-ID: <e8fa44e1e6bcb58ea07b5064ed40e088@www.loen.fr> (raw)
In-Reply-To: <237a3457-bcb3-c9b7-11ef-241b7ccc370e@suse.com>
On 2019-10-21 06:01, Jürgen Groß wrote:
> On 19.10.19 22:28, Marc Zyngier wrote:
>> How about something like pv_time_init() instead? In the guest, this
>> is
>> no way KVM specific, and I still hope for this to work on things
>> like
>> Xen/HyperV/VMware (yeah, I'm foolishly optimistic). All the
>> references
>> to KVM should go, and be replaced by something more generic (after
>> all, you're only implementing the spec, so feel free to call it
>> den0057_* if you really want).
>
> Xen guests already have the needed functionality. On ARM this just
> needs
> to be hooked up.
Yes, Xen offers its own PV interface for that. But this code is about
implementing support for a cross hypervisor functionnality (which
AFAICT
is not implemented by Xen).
M.
--
Jazz is not dead. It just smells funny...
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next prev parent reply other threads:[~2019-10-21 7:55 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-11 12:59 [PATCH v6 00/10] arm64: Stolen time support Steven Price
2019-10-11 12:59 ` [PATCH v6 01/10] KVM: arm64: Document PV-time interface Steven Price
2019-10-11 12:59 ` [PATCH v6 02/10] KVM: arm/arm64: Factor out hypercall handling from PSCI code Steven Price
2019-10-11 12:59 ` [PATCH v6 03/10] KVM: arm64: Implement PV_TIME_FEATURES call Steven Price
2019-10-11 12:59 ` [PATCH v6 04/10] KVM: Implement kvm_put_guest() Steven Price
2019-10-11 12:59 ` [PATCH v6 05/10] KVM: arm64: Support stolen time reporting via shared structure Steven Price
2019-10-19 11:12 ` Marc Zyngier
2019-10-21 10:21 ` Steven Price
2019-10-21 10:40 ` Marc Zyngier
2019-10-21 11:24 ` Steven Price
2019-10-11 12:59 ` [PATCH v6 06/10] KVM: Allow kvm_device_ops to be const Steven Price
2019-10-11 12:59 ` [PATCH v6 07/10] KVM: arm64: Provide VCPU attributes for stolen time Steven Price
2019-10-19 11:28 ` Marc Zyngier
2019-10-21 11:00 ` Steven Price
2019-10-11 12:59 ` [PATCH v6 08/10] arm/arm64: Provide a wrapper for SMCCC 1.1 calls Steven Price
2019-10-21 11:42 ` Marc Zyngier
2019-10-21 13:43 ` Steven Price
2019-10-21 14:05 ` Marc Zyngier
2019-10-11 12:59 ` [PATCH v6 09/10] arm/arm64: Make use of the SMCCC 1.1 wrapper Steven Price
2019-10-11 12:59 ` [PATCH v6 10/10] arm64: Retrieve stolen time as paravirtualized guest Steven Price
2019-10-19 20:28 ` Marc Zyngier
2019-10-21 5:01 ` Jürgen Groß
2019-10-21 7:55 ` Marc Zyngier [this message]
2019-10-21 12:14 ` Steven Price
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