KVM: VMX: RTIT_CTL_BRANCH_EN has no dependency on other CPUID bit

Per Intel SDM, RTIT_CTL_BRANCH_EN bit has no dependency on any CPUID
leaf 0x14.
Signed-off-by: NXiaoyao Li <xiaoyao.li@intel.com>
Message-Id: <20210827070249.924633-5-xiaoyao.li@intel.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

arch/x86/kvm/vmx/vmx.c

@@ -7136,7 +7136,8 @@ static void update_intel_pt_cfg(struct kvm_vcpu *vcpu)
 
 	/* Initialize and clear the no dependency bits */
 	vmx->pt_desc.ctl_bitmask = ~(RTIT_CTL_TRACEEN | RTIT_CTL_OS |
-			RTIT_CTL_USR | RTIT_CTL_TSC_EN | RTIT_CTL_DISRETC);
+			RTIT_CTL_USR | RTIT_CTL_TSC_EN | RTIT_CTL_DISRETC |
+			RTIT_CTL_BRANCH_EN);
 
 	/*
 	 * If CPUID.(EAX=14H,ECX=0):EBX[0]=1 CR3Filter can be set otherwise
@@ -7154,12 +7155,11 @@ static void update_intel_pt_cfg(struct kvm_vcpu *vcpu)
 				RTIT_CTL_CYC_THRESH | RTIT_CTL_PSB_FREQ);
 
 	/*
-	 * If CPUID.(EAX=14H,ECX=0):EBX[3]=1 MTCEn BranchEn and
-	 * MTCFreq can be set
+	 * If CPUID.(EAX=14H,ECX=0):EBX[3]=1 MTCEn and MTCFreq can be set
 	 */
 	if (intel_pt_validate_cap(vmx->pt_desc.caps, PT_CAP_mtc))
 		vmx->pt_desc.ctl_bitmask &= ~(RTIT_CTL_MTC_EN |
-				RTIT_CTL_BRANCH_EN | RTIT_CTL_MTC_RANGE);
+					      RTIT_CTL_MTC_RANGE);
 
 	/* If CPUID.(EAX=14H,ECX=0):EBX[4]=1 FUPonPTW and PTWEn can be set */
 	if (intel_pt_validate_cap(vmx->pt_desc.caps, PT_CAP_ptwrite))