linux-kernel - Re: [RFC PATCH v3 54/59] KVM: X86: Introduce initial_tsc_khz in struct kvm

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Message-ID: <d2437c7c-1276-9c8a-8dbb-218ade7c91d1@redhat.com>
Date:   Thu, 25 Nov 2021 21:48:28 +0100
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     isaku.yamahata@...el.com, Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H . Peter Anvin" <hpa@...or.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>, erdemaktas@...gle.com,
        Connor Kuehl <ckuehl@...hat.com>,
        Sean Christopherson <seanjc@...gle.com>,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Cc:     isaku.yamahata@...il.com, Xiaoyao Li <xiaoyao.li@...el.com>
Subject: Re: [RFC PATCH v3 54/59] KVM: X86: Introduce initial_tsc_khz in
 struct kvm_arch

On 11/25/21 01:20, isaku.yamahata@...el.com wrote:
> From: Xiaoyao Li<xiaoyao.li@...el.com>
> 
> Introduce a per-vm variable initial_tsc_khz to hold the default tsc_khz
> for kvm_arch_vcpu_create().
> 
> This field is going to be used by TDX since TSC frequency for TD guest
> is configured at TD VM initialization phase.
> 
> Signed-off-by: Xiaoyao Li<xiaoyao.li@...el.com>
> Signed-off-by: Isaku Yamahata<isaku.yamahata@...el.com>

Probably some incorrect squashing happened here, since...

>  arch/x86/include/asm/kvm_host.h |    1 +
>  arch/x86/kvm/vmx/tdx.c          | 2233 +++++++++++++++++++++++++++++++
>  arch/x86/kvm/x86.c              |    3 +-
>  3 files changed, 2236 insertions(+), 1 deletion(-)
>  create mode 100644 arch/x86/kvm/vmx/tdx.c

This patch does a bit more than that. :)

Paolo