KVM: VMX: Directly use VMX capabilities helper to detect RDTSCP support

Use cpu_has_vmx_rdtscp() directly when computing secondary exec controls
and drop the now defunct vmx_rdtscp_supported().

No functional change intended.

Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 80e8b84..e5aeb6f 100644 (file)
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -1687,11 +1687,6 @@ static void vmx_queue_exception(struct kvm_vcpu *vcpu)
        vmx_clear_hlt(vcpu);
 }
 
-static bool vmx_rdtscp_supported(void)
-{
-       return cpu_has_vmx_rdtscp();
-}
-
 /*
  * Swap MSR entry in host/guest MSR entry array.
  */
@@ -4073,7 +4068,7 @@ static void vmx_compute_secondary_exec_control(struct vcpu_vmx *vmx)
                }
        }
 
-       if (vmx_rdtscp_supported()) {
+       if (cpu_has_vmx_rdtscp()) {
                bool rdtscp_enabled = guest_cpuid_has(vcpu, X86_FEATURE_RDTSCP);
                if (!rdtscp_enabled)
                        exec_control &= ~SECONDARY_EXEC_RDTSCP;