kvm_x86_ops->test_posted_interrupt() returns true/false depending
whether 'vector' is set.

Signed-off-by: Marcelo Tosatti <mtosa...@redhat.com>

Index: kvm/arch/x86/include/asm/kvm_host.h
===================================================================
--- kvm.orig/arch/x86/include/asm/kvm_host.h
+++ kvm/arch/x86/include/asm/kvm_host.h
@@ -743,6 +743,7 @@ 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);
Index: kvm/arch/x86/kvm/vmx.c
===================================================================
--- kvm.orig/arch/x86/kvm/vmx.c
+++ kvm/arch/x86/kvm/vmx.c
@@ -435,6 +435,11 @@ static int pi_test_and_set_pir(int vecto
        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;
@@ -5939,6 +5944,7 @@ static __init int hardware_setup(void)
        else {
                kvm_x86_ops->hwapic_irr_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;
        }
 
@@ -6960,6 +6966,13 @@ static int handle_invvpid(struct kvm_vcp
        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);
+}
+
 /*
  * The exit handlers return 1 if the exit was handled fully and guest execution
  * may resume.  Otherwise they set the kvm_run parameter to indicate what needs
@@ -9374,6 +9387,7 @@ 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,


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