commit 3d81bc7e96d6bca0b8f8b7d1bf6ea72caa3aac57
author Yang Zhang <yang.z.zhang@Intel.com> Thu Apr 11 19:25:13 2013 +0800
committer Marcelo Tosatti <mtosatti@redhat.com> Tue Apr 16 16:32:40 2013 -0300
tree 3e8d83b8d80c87c38cc0bb1d3caef6286ad9dd48
parent 01e439be7753c163932538276f04f95cb1b66697

KVM: Call common update function when ioapic entry changed.

Both TMR and EOI exit bitmap need to be updated when ioapic changed
or vcpu's id/ldr/dfr changed. So use common function instead eoi exit
bitmap specific function.

Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com>
Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

arch/x86/kvm/lapic.c

diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 6796218..34a8ca8 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -217,7 +217,7 @@
 	if (old)
 		kfree_rcu(old, rcu);
 
-	kvm_ioapic_make_eoibitmap_request(kvm);
+	kvm_vcpu_request_scan_ioapic(kvm);
 }
 
 static inline void kvm_apic_set_id(struct kvm_lapic *apic, u8 id)

arch/x86/kvm/vmx.c

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 7607c6c..8535519 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -6414,6 +6414,9 @@
 
 static void vmx_load_eoi_exitmap(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap)
 {
+	if (!vmx_vm_has_apicv(vcpu->kvm))
+		return;
+
 	vmcs_write64(EOI_EXIT_BITMAP0, eoi_exit_bitmap[0]);
 	vmcs_write64(EOI_EXIT_BITMAP1, eoi_exit_bitmap[1]);
 	vmcs_write64(EOI_EXIT_BITMAP2, eoi_exit_bitmap[2]);

arch/x86/kvm/x86.c

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 1562671..87a05df 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5661,13 +5661,16 @@
 #endif
 }
 
-static void update_eoi_exitmap(struct kvm_vcpu *vcpu)
+static void vcpu_scan_ioapic(struct kvm_vcpu *vcpu)
 {
 	u64 eoi_exit_bitmap[4];
 
+	if (!kvm_apic_hw_enabled(vcpu->arch.apic))
+		return;
+
 	memset(eoi_exit_bitmap, 0, 32);
 
-	kvm_ioapic_calculate_eoi_exitmap(vcpu, eoi_exit_bitmap);
+	kvm_ioapic_scan_entry(vcpu, eoi_exit_bitmap);
 	kvm_x86_ops->load_eoi_exitmap(vcpu, eoi_exit_bitmap);
 }
 
@@ -5724,8 +5727,8 @@
 			kvm_handle_pmu_event(vcpu);
 		if (kvm_check_request(KVM_REQ_PMI, vcpu))
 			kvm_deliver_pmi(vcpu);
-		if (kvm_check_request(KVM_REQ_EOIBITMAP, vcpu))
-			update_eoi_exitmap(vcpu);
+		if (kvm_check_request(KVM_REQ_SCAN_IOAPIC, vcpu))
+			vcpu_scan_ioapic(vcpu);
 	}
 
 	if (kvm_check_request(KVM_REQ_EVENT, vcpu) || req_int_win) {