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From:   Fuad Tabba <tabba@google.com>
Date:   Thu, 2 Nov 2023 14:35:36 +0000
Message-ID: <CA+EHjTzk0=24wGbxQUApAY4B-K3xO3+SOfLn1tPJk-hVJY0+GQ@mail.gmail.com>
Subject: Re: [PATCH v13 21/35] KVM: Drop superfluous __KVM_VCPU_MULTIPLE_ADDRESS_SPACE
 macro
To:     Sean Christopherson <seanjc@google.com>
Cc:     Paolo Bonzini <pbonzini@redhat.com>, Marc Zyngier <maz@kernel.org>,
        Oliver Upton <oliver.upton@linux.dev>,
        Huacai Chen <chenhuacai@kernel.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Anup Patel <anup@brainfault.org>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Alexander Viro <viro@zeniv.linux.org.uk>,
        Christian Brauner <brauner@kernel.org>,
        "Matthew Wilcox (Oracle)" <willy@infradead.org>,
        Andrew Morton <akpm@linux-foundation.org>, kvm@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev,
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On Fri, Oct 27, 2023 at 7:23=E2=80=AFPM Sean Christopherson <seanjc@google.=
com> wrote:
>
> Drop __KVM_VCPU_MULTIPLE_ADDRESS_SPACE and instead check the value of
> KVM_ADDRESS_SPACE_NUM.
>
> No functional change intended.
>
> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
> Signed-off-by: Sean Christopherson <seanjc@google.com>
> ---

Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>

Cheers,
/fuad

>  arch/x86/include/asm/kvm_host.h | 1 -
>  include/linux/kvm_host.h        | 2 +-
>  2 files changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_h=
ost.h
> index 8d60e4745e8b..6702f795c862 100644
> --- a/arch/x86/include/asm/kvm_host.h
> +++ b/arch/x86/include/asm/kvm_host.h
> @@ -2124,7 +2124,6 @@ enum {
>  #define HF_SMM_MASK            (1 << 1)
>  #define HF_SMM_INSIDE_NMI_MASK (1 << 2)
>
> -# define __KVM_VCPU_MULTIPLE_ADDRESS_SPACE
>  # define KVM_ADDRESS_SPACE_NUM 2
>  # define kvm_arch_vcpu_memslots_id(vcpu) ((vcpu)->arch.hflags & HF_SMM_M=
ASK ? 1 : 0)
>  # define kvm_memslots_for_spte_role(kvm, role) __kvm_memslots(kvm, (role=
).smm)
> diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
> index e3223cafd7db..c3cfe08b1300 100644
> --- a/include/linux/kvm_host.h
> +++ b/include/linux/kvm_host.h
> @@ -692,7 +692,7 @@ bool kvm_arch_irqchip_in_kernel(struct kvm *kvm);
>  #define KVM_MEM_SLOTS_NUM SHRT_MAX
>  #define KVM_USER_MEM_SLOTS (KVM_MEM_SLOTS_NUM - KVM_INTERNAL_MEM_SLOTS)
>
> -#ifndef __KVM_VCPU_MULTIPLE_ADDRESS_SPACE
> +#if KVM_ADDRESS_SPACE_NUM =3D=3D 1
>  static inline int kvm_arch_vcpu_memslots_id(struct kvm_vcpu *vcpu)
>  {
>         return 0;
> --
> 2.42.0.820.g83a721a137-goog
>