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[213.175.37.10]) by smtp.gmail.com with ESMTPSA id b7sm10175881wrj.28.2019.09.30.01.48.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 30 Sep 2019 01:48:28 -0700 (PDT) From: Vitaly Kuznetsov To: Sean Christopherson Cc: Wanpeng Li , Jim Mattson , Joerg Roedel , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Reto Buerki , Liran Alon , Paolo Bonzini , Radim =?utf-8?B?S3LEjW3DocWZ?= Subject: Re: [PATCH v2 3/8] KVM: VMX: Consolidate to_vmx() usage in RFLAGS accessors In-Reply-To: <20190927214523.3376-4-sean.j.christopherson@intel.com> References: <20190927214523.3376-1-sean.j.christopherson@intel.com> <20190927214523.3376-4-sean.j.christopherson@intel.com> Date: Mon, 30 Sep 2019 10:48:27 +0200 Message-ID: <87pnji41b8.fsf@vitty.brq.redhat.com> MIME-Version: 1.0 Content-Type: text/plain Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Sean Christopherson writes: > Capture struct vcpu_vmx in a local variable to improve the readability > of vmx_{g,s}et_rflags(). > > No functional change intended. > > Signed-off-by: Sean Christopherson > --- > arch/x86/kvm/vmx/vmx.c | 20 +++++++++++--------- > 1 file changed, 11 insertions(+), 9 deletions(-) > > diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c > index 0b8dd9c315f8..83fe8b02b732 100644 > --- a/arch/x86/kvm/vmx/vmx.c > +++ b/arch/x86/kvm/vmx/vmx.c > @@ -1407,35 +1407,37 @@ static void vmx_decache_cr0_guest_bits(struct kvm_vcpu *vcpu); > > unsigned long vmx_get_rflags(struct kvm_vcpu *vcpu) > { > + struct vcpu_vmx *vmx = to_vmx(vcpu); > unsigned long rflags, save_rflags; > > if (!test_bit(VCPU_EXREG_RFLAGS, (ulong *)&vcpu->arch.regs_avail)) { > __set_bit(VCPU_EXREG_RFLAGS, (ulong *)&vcpu->arch.regs_avail); > rflags = vmcs_readl(GUEST_RFLAGS); > - if (to_vmx(vcpu)->rmode.vm86_active) { > + if (vmx->rmode.vm86_active) { > rflags &= RMODE_GUEST_OWNED_EFLAGS_BITS; > - save_rflags = to_vmx(vcpu)->rmode.save_rflags; > + save_rflags = vmx->rmode.save_rflags; > rflags |= save_rflags & ~RMODE_GUEST_OWNED_EFLAGS_BITS; > } > - to_vmx(vcpu)->rflags = rflags; > + vmx->rflags = rflags; > } > - return to_vmx(vcpu)->rflags; > + return vmx->rflags; > } > > void vmx_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags) > { > + struct vcpu_vmx *vmx = to_vmx(vcpu); > unsigned long old_rflags = vmx_get_rflags(vcpu); > > __set_bit(VCPU_EXREG_RFLAGS, (ulong *)&vcpu->arch.regs_avail); > - to_vmx(vcpu)->rflags = rflags; > - if (to_vmx(vcpu)->rmode.vm86_active) { > - to_vmx(vcpu)->rmode.save_rflags = rflags; > + vmx->rflags = rflags; > + if (vmx->rmode.vm86_active) { > + vmx->rmode.save_rflags = rflags; > rflags |= X86_EFLAGS_IOPL | X86_EFLAGS_VM; > } > vmcs_writel(GUEST_RFLAGS, rflags); > > - if ((old_rflags ^ to_vmx(vcpu)->rflags) & X86_EFLAGS_VM) > - to_vmx(vcpu)->emulation_required = emulation_required(vcpu); > + if ((old_rflags ^ vmx->rflags) & X86_EFLAGS_VM) > + vmx->emulation_required = emulation_required(vcpu); > } > > u32 vmx_get_interrupt_shadow(struct kvm_vcpu *vcpu) Reviewed-by: Vitaly Kuznetsov -- Vitaly