diff options
author | Yang Zhang <yang.z.zhang@Intel.com> | 2013-04-07 08:25:18 +0800 |
---|---|---|
committer | Gleb Natapov <gleb@redhat.com> | 2013-04-07 13:55:49 +0300 |
commit | 44944d4d28948c71b110b09a2e924e505cd39e8b (patch) | |
tree | 6d0b96165c11414c98edd14501f016627687d7dd /arch/x86/kvm/lapic.c | |
parent | 99437a2782730ec8c7e6cfebb6143d00b091e4a8 (diff) |
KVM: Call kvm_apic_match_dest() to check destination vcpu
For a given vcpu, kvm_apic_match_dest() will tell you whether
the vcpu in the destination list quickly. Drop kvm_calculate_eoi_exitmap()
and use kvm_apic_match_dest() instead.
Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Diffstat (limited to 'arch/x86/kvm/lapic.c')
-rw-r--r-- | arch/x86/kvm/lapic.c | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index a8e9369f41c..e2274745ab3 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -145,53 +145,6 @@ static inline int kvm_apic_id(struct kvm_lapic *apic) return (kvm_apic_get_reg(apic, APIC_ID) >> 24) & 0xff; } -void kvm_calculate_eoi_exitmap(struct kvm_vcpu *vcpu, - struct kvm_lapic_irq *irq, - u64 *eoi_exit_bitmap) -{ - struct kvm_lapic **dst; - struct kvm_apic_map *map; - unsigned long bitmap = 1; - int i; - - rcu_read_lock(); - map = rcu_dereference(vcpu->kvm->arch.apic_map); - - if (unlikely(!map)) { - __set_bit(irq->vector, (unsigned long *)eoi_exit_bitmap); - goto out; - } - - if (irq->dest_mode == 0) { /* physical mode */ - if (irq->delivery_mode == APIC_DM_LOWEST || - irq->dest_id == 0xff) { - __set_bit(irq->vector, - (unsigned long *)eoi_exit_bitmap); - goto out; - } - dst = &map->phys_map[irq->dest_id & 0xff]; - } else { - u32 mda = irq->dest_id << (32 - map->ldr_bits); - - dst = map->logical_map[apic_cluster_id(map, mda)]; - - bitmap = apic_logical_id(map, mda); - } - - for_each_set_bit(i, &bitmap, 16) { - if (!dst[i]) - continue; - if (dst[i]->vcpu == vcpu) { - __set_bit(irq->vector, - (unsigned long *)eoi_exit_bitmap); - break; - } - } - -out: - rcu_read_unlock(); -} - static void recalculate_apic_map(struct kvm *kvm) { struct kvm_apic_map *new, *old = NULL; |