linux-kernel - Re: [RFC PATCH v3 04/21] UAPI: x86: Move pvclock-abi to UAPI for x86 platforms

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Message-ID: <fda6e53f-da08-4899-81e1-8e90d44a7ead@xen.org>
Date: Fri, 24 May 2024 14:14:41 +0100
From: Paul Durrant <xadimgnik@...il.com>
To: David Woodhouse <dwmw2@...radead.org>, kvm@...r.kernel.org
Cc: Paolo Bonzini <pbonzini@...hat.com>, Jonathan Corbet <corbet@....net>,
 Sean Christopherson <seanjc@...gle.com>, Thomas Gleixner
 <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>,
 Borislav Petkov <bp@...en8.de>, Dave Hansen <dave.hansen@...ux.intel.com>,
 x86@...nel.org, "H. Peter Anvin" <hpa@...or.com>,
 Peter Zijlstra <peterz@...radead.org>, Juri Lelli <juri.lelli@...hat.com>,
 Vincent Guittot <vincent.guittot@...aro.org>,
 Dietmar Eggemann <dietmar.eggemann@....com>,
 Steven Rostedt <rostedt@...dmis.org>, Ben Segall <bsegall@...gle.com>,
 Mel Gorman <mgorman@...e.de>, Daniel Bristot de Oliveira
 <bristot@...hat.com>, Valentin Schneider <vschneid@...hat.com>,
 Shuah Khan <shuah@...nel.org>, linux-doc@...r.kernel.org,
 linux-kernel@...r.kernel.org, jalliste@...zon.co.uk, sveith@...zon.de,
 zide.chen@...el.com, Dongli Zhang <dongli.zhang@...cle.com>,
 Chenyi Qiang <chenyi.qiang@...el.com>
Subject: Re: [RFC PATCH v3 04/21] UAPI: x86: Move pvclock-abi to UAPI for x86
 platforms

On 22/05/2024 01:16, David Woodhouse wrote:
> From: Jack Allister <jalliste@...zon.com>
> 
> KVM provides a new interface for performing a fixup/correction of the KVM
> clock against the reference TSC. The KVM_[GS]ET_CLOCK_GUEST API requires a
> pvclock_vcpu_time_info, as such the caller must know about this definition.
> 
> Move the definition to the UAPI folder so that it is exported to usermode
> and also change the type definitions to use the standard for UAPI exports.
> 
> Signed-off-by: Jack Allister <jalliste@...zon.com>
> Signed-off-by: David Woodhouse <dwmw@...zon.co.uk>
> ---
>   arch/x86/include/{ => uapi}/asm/pvclock-abi.h | 24 +++++++++----------
>   1 file changed, 12 insertions(+), 12 deletions(-)
>   rename arch/x86/include/{ => uapi}/asm/pvclock-abi.h (83%)
> 

Reviewed-by: Paul Durrant <paul@....org>