From: Sean Christopherson <seanjc@google.com>
To: David Woodhouse <dwmw2@infradead.org>
Cc: kvm@vger.kernel.org, Paolo Bonzini <pbonzini@redhat.com>,
Jonathan Corbet <corbet@lwn.net>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
Paul Durrant <paul@xen.org>,
Peter Zijlstra <peterz@infradead.org>,
Juri Lelli <juri.lelli@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Steven Rostedt <rostedt@goodmis.org>,
Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
Daniel Bristot de Oliveira <bristot@redhat.com>,
Valentin Schneider <vschneid@redhat.com>,
Shuah Khan <shuah@kernel.org>,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
jalliste@amazon.co.uk, sveith@amazon.de, zide.chen@intel.com,
Dongli Zhang <dongli.zhang@oracle.com>,
Chenyi Qiang <chenyi.qiang@intel.com>
Subject: Re: [RFC PATCH v3 08/21] KVM: x86: Avoid NTP frequency skew for KVM clock on 32-bit host
Date: Tue, 13 Aug 2024 18:57:57 -0700 [thread overview]
Message-ID: <ZrwPJWdRThqSvY0X@google.com> (raw)
In-Reply-To: <20240522001817.619072-9-dwmw2@infradead.org>
On Wed, May 22, 2024, David Woodhouse wrote:
> static inline void kvm_ops_update(struct kvm_x86_init_ops *ops)
> {
> @@ -9984,9 +9977,10 @@ int kvm_x86_vendor_init(struct kvm_x86_init_ops *ops)
>
> if (pi_inject_timer == -1)
> pi_inject_timer = housekeeping_enabled(HK_TYPE_TIMER);
> -#ifdef CONFIG_X86_64
> +
> pvclock_gtod_register_notifier(&pvclock_gtod_notifier);
The unregister path got missed.
#ifdef CONFIG_X86_64
pvclock_gtod_unregister_notifier(&pvclock_gtod_notifier);
>
> +#ifdef CONFIG_X86_64
> if (hypervisor_is_type(X86_HYPER_MS_HYPERV))
> set_hv_tscchange_cb(kvm_hyperv_tsc_notifier);
> #endif
> --
> 2.44.0
>
next prev parent reply other threads:[~2024-08-14 1:57 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-22 0:16 [RFC PATCH v3 00/21] Cleaning up the KVM clock mess David Woodhouse
2024-05-22 0:16 ` [RFC PATCH v3 01/21] KVM: x86/xen: Do not corrupt KVM clock in kvm_xen_shared_info_init() David Woodhouse
2024-05-22 0:16 ` [RFC PATCH v3 02/21] KVM: x86: Improve accuracy of KVM clock when TSC scaling is in force David Woodhouse
2024-08-13 17:50 ` Sean Christopherson
2024-05-22 0:16 ` [RFC PATCH v3 03/21] KVM: x86: Add KVM_[GS]ET_CLOCK_GUEST for accurate KVM clock migration David Woodhouse
2024-05-22 0:16 ` [RFC PATCH v3 04/21] UAPI: x86: Move pvclock-abi to UAPI for x86 platforms David Woodhouse
2024-05-24 13:14 ` Paul Durrant
2024-08-13 18:07 ` Sean Christopherson
2024-05-22 0:17 ` [RFC PATCH v3 05/21] KVM: selftests: Add KVM/PV clock selftest to prove timer correction David Woodhouse
2024-08-13 18:55 ` Sean Christopherson
2024-05-22 0:17 ` [RFC PATCH v3 06/21] KVM: x86: Explicitly disable TSC scaling without CONSTANT_TSC David Woodhouse
2024-05-22 0:17 ` [RFC PATCH v3 07/21] KVM: x86: Add KVM_VCPU_TSC_SCALE and fix the documentation on TSC migration David Woodhouse
2024-08-14 1:52 ` Sean Christopherson
2024-05-22 0:17 ` [RFC PATCH v3 08/21] KVM: x86: Avoid NTP frequency skew for KVM clock on 32-bit host David Woodhouse
2024-08-14 1:57 ` Sean Christopherson [this message]
2024-05-22 0:17 ` [RFC PATCH v3 09/21] KVM: x86: Fix KVM clock precision in __get_kvmclock() David Woodhouse
2024-05-24 13:20 ` Paul Durrant
2024-08-14 2:58 ` Sean Christopherson
2024-05-22 0:17 ` [RFC PATCH v3 10/21] KVM: x86: Fix software TSC upscaling in kvm_update_guest_time() David Woodhouse
2024-05-24 13:26 ` Paul Durrant
2024-08-14 4:57 ` Sean Christopherson
2024-05-22 0:17 ` [RFC PATCH v3 11/21] KVM: x86: Simplify and comment kvm_get_time_scale() David Woodhouse
2024-05-24 13:53 ` Paul Durrant
2024-08-15 15:46 ` Sean Christopherson
2024-05-22 0:17 ` [RFC PATCH v3 12/21] KVM: x86: Remove implicit rdtsc() from kvm_compute_l1_tsc_offset() David Woodhouse
2024-05-24 13:56 ` Paul Durrant
2024-08-15 15:52 ` Sean Christopherson
2024-05-22 0:17 ` [RFC PATCH v3 13/21] KVM: x86: Improve synchronization in kvm_synchronize_tsc() David Woodhouse
2024-05-24 14:03 ` Paul Durrant
2024-08-15 16:00 ` Sean Christopherson
2024-05-22 0:17 ` [RFC PATCH v3 14/21] KVM: x86: Kill cur_tsc_{nsec,offset,write} fields David Woodhouse
2024-05-24 14:05 ` Paul Durrant
2024-08-15 16:30 ` Sean Christopherson
2024-05-22 0:17 ` [RFC PATCH v3 15/21] KVM: x86: Allow KVM master clock mode when TSCs are offset from each other David Woodhouse
2024-05-24 14:10 ` Paul Durrant
2024-08-16 2:38 ` Sean Christopherson
2024-05-22 0:17 ` [RFC PATCH v3 16/21] KVM: x86: Factor out kvm_use_master_clock() David Woodhouse
2024-05-24 14:13 ` Paul Durrant
2024-08-15 17:12 ` Sean Christopherson
2024-05-22 0:17 ` [RFC PATCH v3 17/21] KVM: x86: Avoid global clock update on setting KVM clock MSR David Woodhouse
2024-05-24 14:14 ` Paul Durrant
2024-08-16 4:28 ` Sean Christopherson
2024-05-22 0:17 ` [RFC PATCH v3 18/21] KVM: x86: Avoid gratuitous global clock reload in kvm_arch_vcpu_load() David Woodhouse
2024-05-24 14:16 ` Paul Durrant
2024-08-15 17:31 ` Sean Christopherson
2024-05-22 0:17 ` [RFC PATCH v3 19/21] KVM: x86: Avoid periodic KVM clock updates in master clock mode David Woodhouse
2024-05-24 14:18 ` Paul Durrant
2024-08-16 4:33 ` Sean Christopherson
2024-05-22 0:17 ` [RFC PATCH v3 20/21] KVM: x86/xen: Prevent runstate times from becoming negative David Woodhouse
2024-05-24 14:21 ` Paul Durrant
2024-08-16 4:39 ` Sean Christopherson
2024-08-20 10:22 ` David Woodhouse
2024-08-20 15:08 ` Steven Rostedt
2024-08-20 15:42 ` David Woodhouse
2024-05-22 0:17 ` [RFC PATCH v3 21/21] sched/cputime: Cope with steal time going backwards or negative David Woodhouse
2024-05-24 14:25 ` Paul Durrant
2024-07-02 14:09 ` Shrikanth Hegde
2024-08-16 4:35 ` Sean Christopherson
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