From: Sean Christopherson <seanjc@google.com>
To: David Woodhouse <dwmw2@infradead.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
Jonathan Corbet <corbet@lwn.net>,
Shuah Khan <skhan@linuxfoundation.org>,
Thomas Gleixner <tglx@kernel.org>,
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>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Juergen Gross <jgross@suse.com>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Paul Durrant <paul@xen.org>, Jonathan Cameron <jic23@kernel.org>,
Sascha Bischoff <Sascha.Bischoff@arm.com>,
Marc Zyngier <maz@kernel.org>, Joey Gouly <joey.gouly@arm.com>,
Jack Allister <jalliste@amazon.com>,
Dongli Zhang <dongli.zhang@oracle.com>,
joe.jin@oracle.com, kvm@vger.kernel.org,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
xen-devel@lists.xenproject.org, linux-kselftest@vger.kernel.org
Subject: Re: [PATCH v4 27/30] KVM: x86: Add KVM_VCPU_TSC_EFFECTIVE_FREQ attribute
Date: Fri, 22 May 2026 14:47:19 -0700 [thread overview]
Message-ID: <ahDO58dKuPt-lj_J@google.com> (raw)
In-Reply-To: <99356a588677e9ff31c1747db1705d9250a2728d.camel@infradead.org>
On Fri, May 22, 2026, David Woodhouse wrote:
> On Fri, 2026-05-22 at 10:21 -0700, Sean Christopherson wrote:
> >
> > I'll send a standalone patch, along with a selftest tweak to verify the fix.
> > It's technically a fix and won't generate any conflicts, no reason to delay it.
>
> Are you suggesting the other 30 should be delayed? :P
LOL, just acknowledging that it'll take me a minute to page all of that code in.
next prev parent reply other threads:[~2026-05-22 21:47 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-09 22:46 [PATCH v4] 00/30] Cleaning up the KVM clock mess David Woodhouse
2026-05-09 22:46 ` [PATCH v4 01/30] KVM: x86/xen: Do not corrupt KVM clock in kvm_xen_shared_info_init() David Woodhouse
2026-05-09 22:46 ` [PATCH v4 02/30] KVM: x86: Improve accuracy of KVM clock when TSC scaling is in force David Woodhouse
2026-05-09 22:46 ` [PATCH v4 03/30] UAPI: x86: Move pvclock-abi to UAPI for x86 platforms David Woodhouse
2026-05-19 7:35 ` Dongli Zhang
2026-05-19 7:56 ` David Woodhouse
2026-05-09 22:46 ` [PATCH v4 04/30] KVM: x86: Add KVM_[GS]ET_CLOCK_GUEST for accurate KVM clock migration David Woodhouse
2026-05-18 7:52 ` Dongli Zhang
2026-05-18 8:48 ` David Woodhouse
2026-05-18 20:52 ` Sean Christopherson
2026-05-19 0:57 ` Dongli Zhang
2026-05-19 7:50 ` David Woodhouse
2026-05-19 21:23 ` Dongli Zhang
2026-05-19 22:43 ` David Woodhouse
2026-05-19 23:34 ` Dongli Zhang
2026-05-20 14:08 ` David Woodhouse
2026-05-09 22:46 ` [PATCH v4 05/30] KVM: selftests: Add KVM/PV clock selftest to prove timer correction David Woodhouse
2026-05-09 22:46 ` [PATCH v4 06/30] KVM: x86: Explicitly disable TSC scaling without CONSTANT_TSC David Woodhouse
2026-05-09 22:46 ` [PATCH v4 07/30] KVM: x86: Add KVM_VCPU_TSC_SCALE and fix the documentation on TSC migration David Woodhouse
2026-05-09 22:46 ` [PATCH v4 08/30] KVM: x86: Avoid NTP frequency skew for KVM clock on 32-bit host David Woodhouse
2026-05-09 22:46 ` [PATCH v4 09/30] KVM: x86: WARN if kvm_get_walltime_and_clockread() fails unexpectedly David Woodhouse
2026-05-09 22:46 ` [PATCH v4 10/30] KVM: x86: Fold __get_kvmclock() into get_kvmclock() David Woodhouse
2026-05-09 22:46 ` [PATCH v4 11/30] KVM: x86: Add WARN and restructure get_kvmclock() David Woodhouse
2026-05-09 22:46 ` [PATCH v4 12/30] KVM: x86: Use get_kvmclock_base_ns() as fallback in get_kvmclock() David Woodhouse
2026-05-09 22:46 ` [PATCH v4 13/30] KVM: x86: Fix KVM clock precision in get_kvmclock() with TSC scaling David Woodhouse
2026-05-09 22:46 ` [PATCH v4 14/30] KVM: x86: Use get_kvmclock() in kvm_get_wall_clock_epoch() David Woodhouse
2026-05-09 22:46 ` [PATCH v4 15/30] KVM: x86: Fix compute_guest_tsc() to handle negative time deltas David Woodhouse
2026-05-09 22:46 ` [PATCH v4 16/30] KVM: x86: Restructure kvm_guest_time_update() for TSC upscaling David Woodhouse
2026-05-19 7:38 ` Dongli Zhang
2026-05-19 7:54 ` David Woodhouse
2026-05-09 22:46 ` [PATCH v4 17/30] KVM: x86: Simplify and comment kvm_get_time_scale() David Woodhouse
2026-05-09 22:46 ` [PATCH v4 18/30] KVM: x86: Remove implicit rdtsc() from kvm_compute_l1_tsc_offset() David Woodhouse
2026-05-09 22:46 ` [PATCH v4 19/30] KVM: x86: Improve synchronization in kvm_synchronize_tsc() David Woodhouse
2026-05-09 22:46 ` [PATCH v4 20/30] KVM: x86: Kill last_tsc_{nsec,write,offset} fields David Woodhouse
2026-05-09 22:46 ` [PATCH v4 21/30] KVM: x86: Replace nr_vcpus_matched_tsc count with all_vcpus_matched_tsc bool David Woodhouse
2026-05-09 22:46 ` [PATCH v4 22/30] KVM: x86: Allow KVM master clock mode when TSCs are offset from each other David Woodhouse
2026-05-09 22:46 ` [PATCH v4 23/30] KVM: x86: Factor out kvm_use_master_clock() David Woodhouse
2026-05-09 22:46 ` [PATCH v4 24/30] KVM: x86: Avoid gratuitous global clock updates David Woodhouse
2026-05-09 22:46 ` [PATCH v4 25/30] KVM: x86/xen: Prevent runstate times from becoming negative David Woodhouse
2026-05-09 22:46 ` [PATCH v4 26/30] KVM: x86: Avoid redundant masterclock updates from multiple vCPUs David Woodhouse
2026-05-09 22:46 ` [PATCH v4 27/30] KVM: x86: Add KVM_VCPU_TSC_EFFECTIVE_FREQ attribute David Woodhouse
2026-05-21 21:52 ` David Woodhouse
2026-05-21 22:30 ` Sean Christopherson
2026-05-21 22:40 ` David Woodhouse
2026-05-22 12:49 ` Sean Christopherson
2026-05-22 13:07 ` David Woodhouse
2026-05-22 17:21 ` Sean Christopherson
2026-05-22 17:48 ` David Woodhouse
2026-05-22 21:47 ` Sean Christopherson [this message]
2026-05-22 23:30 ` David Woodhouse
2026-05-09 22:46 ` [PATCH v4 28/30] KVM: x86: Remove runtime Xen TSC frequency CPUID update David Woodhouse
2026-05-09 22:46 ` [PATCH v4 29/30] x86/kvm: Obtain TSC frequency from CPUID if present David Woodhouse
2026-05-09 22:46 ` [PATCH v4 30/30] x86/xen: " David Woodhouse
2026-05-10 20:56 ` [PATCH v4 33/30] KVM: selftests: Add Xen runstate migration test David Woodhouse
2026-05-10 20:58 ` [PATCH v4 31/30] KVM: selftests: Add Xen/generic CPUID timing leaf test David Woodhouse
2026-05-10 21:05 ` [PATCH v4 32/30] KVM: x86: Re-synchronize TSC after KVM_SET_TSC_KHZ David Woodhouse
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