KVM: VMX: Drop hv_timer_armed from 'struct loaded_vmcs'

... now that it is fully redundant with the pin controls shadow.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

arch/x86/kvm/vmx/nested.c

@@ -2015,7 +2015,6 @@ static void prepare_vmcs02_early(struct vcpu_vmx *vmx, struct vmcs12 *vmcs12)
 	exec_control |= vmcs12->pin_based_vm_exec_control;
 	/* Preemption timer setting is computed directly in vmx_vcpu_run.  */
 	exec_control &= ~PIN_BASED_VMX_PREEMPTION_TIMER;
-	vmx->loaded_vmcs->hv_timer_armed = false;
 
 	/* Posted interrupts setting is only taken from vmcs12.  */
 	if (nested_cpu_has_posted_intr(vmcs12)) {

arch/x86/kvm/vmx/vmcs.h

@@ -61,7 +61,6 @@ struct loaded_vmcs {
 	int cpu;
 	bool launched;
 	bool nmi_known_unmasked;
-	bool hv_timer_armed;
 	/* Support for vnmi-less CPUs */
 	int soft_vnmi_blocked;
 	ktime_t entry_time;

arch/x86/kvm/vmx/vmx.c

@@ -6359,9 +6359,7 @@ static void atomic_switch_perf_msrs(struct vcpu_vmx *vmx)
 static void vmx_arm_hv_timer(struct vcpu_vmx *vmx, u32 val)
 {
 	vmcs_write32(VMX_PREEMPTION_TIMER_VALUE, val);
-	if (!vmx->loaded_vmcs->hv_timer_armed)
-		pin_controls_setbit(vmx, PIN_BASED_VMX_PREEMPTION_TIMER);
-	vmx->loaded_vmcs->hv_timer_armed = true;
+	pin_controls_setbit(vmx, PIN_BASED_VMX_PREEMPTION_TIMER);
 }
 
 static void vmx_update_hv_timer(struct kvm_vcpu *vcpu)
@@ -6388,9 +6386,7 @@ static void vmx_update_hv_timer(struct kvm_vcpu *vcpu)
 		return;
 	}
 
-	if (vmx->loaded_vmcs->hv_timer_armed)
-		pin_controls_clearbit(vmx, PIN_BASED_VMX_PREEMPTION_TIMER);
-	vmx->loaded_vmcs->hv_timer_armed = false;
+	pin_controls_clearbit(vmx, PIN_BASED_VMX_PREEMPTION_TIMER);
 }
 
 void vmx_update_host_rsp(struct vcpu_vmx *vmx, unsigned long host_rsp)