KVM: x86: revert "add method to test PIR bitmap vector"

Revert 7c6a98df, given
that testing PIR is not necessary anymore.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

arch/x86/include/asm/kvm_host.h

@@ -767,7 +767,6 @@ struct kvm_x86_ops {
 	void (*set_virtual_x2apic_mode)(struct kvm_vcpu *vcpu, bool set);
 	void (*set_apic_access_page_addr)(struct kvm_vcpu *vcpu, hpa_t hpa);
 	void (*deliver_posted_interrupt)(struct kvm_vcpu *vcpu, int vector);
-	bool (*test_posted_interrupt)(struct kvm_vcpu *vcpu, int vector);
 	void (*sync_pir_to_irr)(struct kvm_vcpu *vcpu);
 	int (*set_tss_addr)(struct kvm *kvm, unsigned int addr);
 	int (*get_tdp_level)(void);

arch/x86/kvm/vmx.c

@@ -438,11 +438,6 @@ static int pi_test_and_set_pir(int vector, struct pi_desc *pi_desc)
 	return test_and_set_bit(vector, (unsigned long *)pi_desc->pir);
 }
 
-static int pi_test_pir(int vector, struct pi_desc *pi_desc)
-{
-	return test_bit(vector, (unsigned long *)pi_desc->pir);
-}
-
 struct vcpu_vmx {
 	struct kvm_vcpu       vcpu;
 	unsigned long         host_rsp;
@@ -5908,7 +5903,6 @@ static __init int hardware_setup(void)
 		kvm_x86_ops->hwapic_irr_update = NULL;
 		kvm_x86_ops->hwapic_isr_update = NULL;
 		kvm_x86_ops->deliver_posted_interrupt = NULL;
-		kvm_x86_ops->test_posted_interrupt = NULL;
 		kvm_x86_ops->sync_pir_to_irr = vmx_sync_pir_to_irr_dummy;
 	}
 
@@ -6994,13 +6988,6 @@ static int handle_invvpid(struct kvm_vcpu *vcpu)
 	return 1;
 }
 
-static bool vmx_test_pir(struct kvm_vcpu *vcpu, int vector)
-{
-	struct vcpu_vmx *vmx = to_vmx(vcpu);
-
-	return pi_test_pir(vector, &vmx->pi_desc);
-}
-
 static int handle_pml_full(struct kvm_vcpu *vcpu)
 {
 	unsigned long exit_qualification;
@@ -9753,7 +9740,6 @@ static struct kvm_x86_ops vmx_x86_ops = {
 	.hwapic_isr_update = vmx_hwapic_isr_update,
 	.sync_pir_to_irr = vmx_sync_pir_to_irr,
 	.deliver_posted_interrupt = vmx_deliver_posted_interrupt,
-	.test_posted_interrupt = vmx_test_pir,
 
 	.set_tss_addr = vmx_set_tss_addr,
 	.get_tdp_level = get_ept_level,