linux-kernel - Re: [PATCH v8 5/8] KVM: Register/unregister the guest private memory regions

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Message-ID: <20220926140715.GB2658254@chaop.bj.intel.com>
Date:   Mon, 26 Sep 2022 22:07:15 +0800
From:   Chao Peng <chao.p.peng@...ux.intel.com>
To:     Fuad Tabba <tabba@...gle.com>
Cc:     kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, linux-fsdevel@...r.kernel.org,
        linux-api@...r.kernel.org, linux-doc@...r.kernel.org,
        qemu-devel@...gnu.org, Paolo Bonzini <pbonzini@...hat.com>,
        Jonathan Corbet <corbet@....net>,
        Sean Christopherson <seanjc@...gle.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        x86@...nel.org, "H . Peter Anvin" <hpa@...or.com>,
        Hugh Dickins <hughd@...gle.com>,
        Jeff Layton <jlayton@...nel.org>,
        "J . Bruce Fields" <bfields@...ldses.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Shuah Khan <shuah@...nel.org>, Mike Rapoport <rppt@...nel.org>,
        Steven Price <steven.price@....com>,
        "Maciej S . Szmigiero" <mail@...iej.szmigiero.name>,
        Vlastimil Babka <vbabka@...e.cz>,
        Vishal Annapurve <vannapurve@...gle.com>,
        Yu Zhang <yu.c.zhang@...ux.intel.com>,
        "Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com>,
        luto@...nel.org, jun.nakajima@...el.com, dave.hansen@...el.com,
        ak@...ux.intel.com, david@...hat.com, aarcange@...hat.com,
        ddutile@...hat.com, dhildenb@...hat.com,
        Quentin Perret <qperret@...gle.com>,
        Michael Roth <michael.roth@....com>, mhocko@...e.com,
        Muchun Song <songmuchun@...edance.com>, wei.w.wang@...el.com
Subject: Re: [PATCH v8 5/8] KVM: Register/unregister the guest private memory
 regions

On Mon, Sep 26, 2022 at 11:36:34AM +0100, Fuad Tabba wrote:
...

> > diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
> > index 2125b50f6345..d65690cae80b 100644
> > --- a/include/linux/kvm_host.h
> > +++ b/include/linux/kvm_host.h
> > @@ -260,6 +260,15 @@ bool kvm_test_age_gfn(struct kvm *kvm, struct kvm_gfn_range *range);
> >  bool kvm_set_spte_gfn(struct kvm *kvm, struct kvm_gfn_range *range);
> >  #endif
> >
> > +#ifdef __KVM_HAVE_ZAP_GFN_RANGE
> > +void kvm_zap_gfn_range(struct kvm *kvm, gfn_t gfn_start, gfn_t gfn_end);
> > +#else
> > +static inline void kvm_zap_gfn_range(struct kvm *kvm, gfn_t gfn_start
> > +                                                     gfn_t gfn_end)
> 
> Missing a comma after gfn_start.

Good catch, thanks!
Chao
> 
> Cheers,
> /fuad