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Re: [PATCH v6 05/36] KVM: x86: Add KVM_[GS]ET_CLOCK_GUEST for accurate KVM clock migration
- To: Sean Christopherson <seanjc@xxxxxxxxxx>
- From: David Woodhouse <dwmw2@xxxxxxxxxxxxx>
- Date: Tue, 28 Jul 2026 03:13:44 +0100
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- Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx>, Jonathan Corbet <corbet@xxxxxxx>, Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, x86@xxxxxxxxxx, "H. Peter Anvin" <hpa@xxxxxxxxx>, Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>, Paul Durrant <paul@xxxxxxx>, Jonathan Cameron <jic23@xxxxxxxxxx>, Sascha Bischoff <Sascha.Bischoff@xxxxxxx>, Marc Zyngier <maz@xxxxxxxxxx>, Joey Gouly <joey.gouly@xxxxxxx>, Jack Allister <jalliste@xxxxxxxxxx>, Dongli Zhang <dongli.zhang@xxxxxxxxxx>, joe.jin@xxxxxxxxxx, kvm@xxxxxxxxxxxxxxx, linux-doc@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-kselftest@xxxxxxxxxxxxxxx
- Delivery-date: Tue, 28 Jul 2026 02:14:20 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On Mon, 2026-07-27 at 18:15 -0700, Sean Christopherson wrote:
>
> Can the KVM_[GS]ET_CLOCK_GUEST changes be moved to the end of the series? The
> total size of the series doesn't scare me, I just don't want to end up with
> all
> the fixes and cleanups stuck behind a patch that isn't a hard dependency.
> E.g.
> AFAICT, none of the following changes, include selftests updates, actualy rely
> on KVM_[GS]ET_CLOCK_GUEST existing.
That only matters if we plan to backport them, surely? And I wasn't.
I suspect it won't be pretty, but I can have a go at moving
KVM_[GS]ET_CLOCK_GUEST to the end. I guess in a similar vein we'd want
to move KVM_VCPU_TSC_SCALE to the end too.
Some of the selftests will have to move too, as they do use those
features.
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