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authorYang Zhang <yang.z.zhang@Intel.com>2013-04-11 19:25:13 +0800
committerMarcelo Tosatti <mtosatti@redhat.com>2013-04-16 16:32:40 -0300
commit3d81bc7e96d6bca0b8f8b7d1bf6ea72caa3aac57 (patch)
tree3e8d83b8d80c87c38cc0bb1d3caef6286ad9dd48 /virt/kvm/ioapic.c
parent01e439be7753c163932538276f04f95cb1b66697 (diff)
downloadlinux-linaro-stable-3d81bc7e96d6bca0b8f8b7d1bf6ea72caa3aac57.tar.gz
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>
Diffstat (limited to 'virt/kvm/ioapic.c')
-rw-r--r--virt/kvm/ioapic.c22
1 files changed, 13 insertions, 9 deletions
diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c
index 97c67a50f904..f2157a985a1f 100644
--- a/virt/kvm/ioapic.c
+++ b/virt/kvm/ioapic.c
@@ -193,15 +193,13 @@ static void update_handled_vectors(struct kvm_ioapic *ioapic)
smp_wmb();
}
-void kvm_ioapic_calculate_eoi_exitmap(struct kvm_vcpu *vcpu,
- u64 *eoi_exit_bitmap)
+void kvm_ioapic_scan_entry(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap)
{
struct kvm_ioapic *ioapic = vcpu->kvm->arch.vioapic;
union kvm_ioapic_redirect_entry *e;
int index;
spin_lock(&ioapic->lock);
- /* traverse ioapic entry to set eoi exit bitmap*/
for (index = 0; index < IOAPIC_NUM_PINS; index++) {
e = &ioapic->redirtbl[index];
if (!e->fields.mask &&
@@ -215,16 +213,22 @@ void kvm_ioapic_calculate_eoi_exitmap(struct kvm_vcpu *vcpu,
}
spin_unlock(&ioapic->lock);
}
-EXPORT_SYMBOL_GPL(kvm_ioapic_calculate_eoi_exitmap);
-void kvm_ioapic_make_eoibitmap_request(struct kvm *kvm)
+#ifdef CONFIG_X86
+void kvm_vcpu_request_scan_ioapic(struct kvm *kvm)
{
struct kvm_ioapic *ioapic = kvm->arch.vioapic;
- if (!kvm_apic_vid_enabled(kvm) || !ioapic)
+ if (!ioapic)
return;
- kvm_make_update_eoibitmap_request(kvm);
+ kvm_make_scan_ioapic_request(kvm);
}
+#else
+void kvm_vcpu_request_scan_ioapic(struct kvm *kvm)
+{
+ return;
+}
+#endif
static void ioapic_write_indirect(struct kvm_ioapic *ioapic, u32 val)
{
@@ -267,7 +271,7 @@ static void ioapic_write_indirect(struct kvm_ioapic *ioapic, u32 val)
if (e->fields.trig_mode == IOAPIC_LEVEL_TRIG
&& ioapic->irr & (1 << index))
ioapic_service(ioapic, index, false);
- kvm_ioapic_make_eoibitmap_request(ioapic->kvm);
+ kvm_vcpu_request_scan_ioapic(ioapic->kvm);
break;
}
}
@@ -586,7 +590,7 @@ int kvm_set_ioapic(struct kvm *kvm, struct kvm_ioapic_state *state)
spin_lock(&ioapic->lock);
memcpy(ioapic, state, sizeof(struct kvm_ioapic_state));
update_handled_vectors(ioapic);
- kvm_ioapic_make_eoibitmap_request(kvm);
+ kvm_vcpu_request_scan_ioapic(kvm);
kvm_rtc_eoi_tracking_restore_all(ioapic);
spin_unlock(&ioapic->lock);
return 0;