linux-kernel - Re: [RFC PATCH v2 02/69] KVM: X86: move kvm_cpu

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Message-ID: <YO3SHUzwCH+haEgZ@google.com>
Date:   Tue, 13 Jul 2021 17:49:17 +0000
From:   Sean Christopherson <seanjc@...gle.com>
To:     isaku.yamahata@...el.com
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H . Peter Anvin" <hpa@...or.com>,
        Paolo Bonzini <pbonzini@...hat.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>, x86@...nel.org,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        isaku.yamahata@...il.com
Subject: Re: [RFC PATCH v2 02/69] KVM: X86: move kvm_cpu_vmxon() from vmx.c
 to virtext.h

On Fri, Jul 02, 2021, isaku.yamahata@...el.com wrote:
> From: Isaku Yamahata <isaku.yamahata@...el.com>
> 
> This is preparatory clean up for TDX support.
> Move out kvm_cpu_vmxon() from vmx.c to virtext.h with rename to
> vcpu_vmxon(). Which will be used outside of kvm.
> SEAMLDER to load TDX module which occurs at kernel early boot phase.
  ^^^^^^^^
  SEAMLDR?

This patch can't be reviewed without seeing the TDX-Module load/init code, and
that code has been moved to a different (not yet posted?) series.  E.g. at the
end of this series, KVM is still the only user.

> As bonus, this also increases the symetry with cpu_vmxoff().
                                    ^^^^^^^
                                    symmetry