linux-kernel - Re: [PATCH 02/17] KVM: monolithic: x86: convert the kvm_x86

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Date:   Mon, 23 Sep 2019 15:21:31 -0400
From:   Andrea Arcangeli <aarcange@...hat.com>
To:     Paolo Bonzini <pbonzini@...hat.com>
Cc:     Vitaly Kuznetsov <vkuznets@...hat.com>,
        "Dr. David Alan Gilbert" <dgilbert@...hat.com>,
        Marcelo Tosatti <mtosatti@...hat.com>,
        Peter Xu <peterx@...hat.com>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 02/17] KVM: monolithic: x86: convert the kvm_x86_ops
 methods to external functions

On Mon, Sep 23, 2019 at 12:19:30PM +0200, Paolo Bonzini wrote:
> On 20/09/19 23:24, Andrea Arcangeli wrote:
> > diff --git a/arch/x86/kvm/svm_ops.c b/arch/x86/kvm/svm_ops.c
> > new file mode 100644
> > index 000000000000..2aaabda92179
> > --- /dev/null
> > +++ b/arch/x86/kvm/svm_ops.c
> > @@ -0,0 +1,672 @@
> > +// SPDX-License-Identifier: GPL-2.0-only
> > +/*
> > + *  arch/x86/kvm/svm_ops.c
> > + *
> > + *  Copyright 2019 Red Hat, Inc.
> > + */
> > +
> > +int kvm_x86_ops_cpu_has_kvm_support(void)
> > +{
> > +	return has_svm();
> > +}
> 
> Can you just rename all the functions in vmx/ and svm.c, instead of
> adding forwarders?

I can do that, I thought this was cleaner as it still retained the
abstraction separated from the mixup of the rest of the vmx/svm code,
but it'll work the same by dropping the abstraction in kvm_ops.h and
just maintaining a common name between the svm.c and vmx.c files, gcc
already built it that way after all.