diff options
| author | Gleb Natapov <gleb@redhat.com> | 2012-09-13 17:19:24 +0300 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2012-09-20 15:05:26 +0300 |
| commit | 1e08ec4a130e2745d96df169e67c58df98a07311 (patch) | |
| tree | 362647f5b0bac59e7fe93ce66775afac2cd7da79 /arch/x86/kvm/x86.c | |
| parent | 1d86b5cc4c6d9a1be1458be3701ac9c915a9706f (diff) | |
KVM: optimize apic interrupt delivery
Most interrupt are delivered to only one vcpu. Use pre-build tables to
find interrupt destination instead of looping through all vcpus. In case
of logical mode loop only through vcpus in a logical cluster irq is sent
to.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/x86.c')
| -rw-r--r-- | arch/x86/kvm/x86.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 497226e49d4b..fc2a0a132e4b 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -6270,6 +6270,7 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type) set_bit(KVM_USERSPACE_IRQ_SOURCE_ID, &kvm->arch.irq_sources_bitmap); raw_spin_lock_init(&kvm->arch.tsc_write_lock); + mutex_init(&kvm->arch.apic_map_lock); return 0; } @@ -6322,6 +6323,7 @@ void kvm_arch_destroy_vm(struct kvm *kvm) put_page(kvm->arch.apic_access_page); if (kvm->arch.ept_identity_pagetable) put_page(kvm->arch.ept_identity_pagetable); + kfree(rcu_dereference_check(kvm->arch.apic_map, 1)); } void kvm_arch_free_memslot(struct kvm_memory_slot *free, |