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[91.219.240.2]) by smtp.gmail.com with ESMTPSA id z8sm8283223wrh.54.2021.11.01.09.21.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 01 Nov 2021 09:21:43 -0700 (PDT) From: Vitaly Kuznetsov To: Maxim Levitsky , kvm@vger.kernel.org Cc: Shuah Khan , "open list:KERNEL SELFTEST FRAMEWORK" , Borislav Petkov , Paolo Bonzini , "open list:X86 ARCHITECTURE (32-BIT AND 64-BIT)" , Joerg Roedel , "H. Peter Anvin" , Maxim Levitsky , Thomas Gleixner , Bandan Das , Wanpeng Li , Jim Mattson , Sean Christopherson , Wei Huang , "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" , Ingo Molnar Subject: Re: [PATCH v2 1/6] KVM: x86: SVM: add module param to control LBR virtualization In-Reply-To: <20211101140324.197921-2-mlevitsk@redhat.com> References: <20211101140324.197921-1-mlevitsk@redhat.com> <20211101140324.197921-2-mlevitsk@redhat.com> Date: Mon, 01 Nov 2021 17:21:42 +0100 Message-ID: <87pmrjkfs9.fsf@vitty.brq.redhat.com> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Maxim Levitsky writes: > This is useful for debug and also makes it consistent with > the rest of the SVM optional features. > > Signed-off-by: Maxim Levitsky > --- > arch/x86/kvm/svm/svm.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c > index 21bb81710e0f6..2b5f8e10d686d 100644 > --- a/arch/x86/kvm/svm/svm.c > +++ b/arch/x86/kvm/svm/svm.c > @@ -186,12 +186,13 @@ module_param(vls, int, 0444); > static int vgif = true; > module_param(vgif, int, 0444); > > +static int tsc_scaling = true; > +module_param(tsc_scaling, int, 0444); > + > /* enable/disable LBR virtualization */ > static int lbrv = true; > module_param(lbrv, int, 0444); > > -static int tsc_scaling = true; > -module_param(tsc_scaling, int, 0444); Subject line says "KVM: x86: SVM: add module param to control LBR virtualization" but the patch just moves 'tsc_scaling' param a couple lines up. Was this intended or is this a rebase artifact and the patch just needs to be dropped? > > /* > * enable / disable AVIC. Because the defaults differ for APICv -- Vitaly