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| author |   Andrey Smetanin <asmetanin@virtuozzo.com> | 2015-11-10 15:36:32 +0300 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2015-11-25 17:24:21 +0100 |
| commit | 6308630bd3dbb6a8a883c4c571ce5e5a759a8a0e (patch) | |
| tree | 3f4e51bee7ece38a7784090634906639954227d7 /arch/x86/kvm/lapic.c | |
| parent | kvm/irqchip: kvm_arch_irq_routing_update renaming split (diff) | |
| download | linux-dev-6308630bd3dbb6a8a883c4c571ce5e5a759a8a0e.tar.xz linux-dev-6308630bd3dbb6a8a883c4c571ce5e5a759a8a0e.zip | |
kvm/x86: split ioapic-handled and EOI exit bitmaps
The function to determine if the vector is handled by ioapic used to
rely on the fact that only ioapic-handled vectors were set up to
cause vmexits when virtual apic was in use.
We're going to break this assumption when introducing Hyper-V
synthetic interrupts: they may need to cause vmexits too.
To achieve that, introduce a new bitmap dedicated specifically for
ioapic-handled vectors, and populate EOI exit bitmap from it for now.
Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com>
Reviewed-by: Roman Kagan <rkagan@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Gleb Natapov <gleb@kernel.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Roman Kagan <rkagan@virtuozzo.com>
CC: Denis V. Lunev <den@openvz.org>
CC: qemu-devel@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/lapic.c')
| -rw-r--r-- | arch/x86/kvm/lapic.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index 4d30b865be30..9469d453abc8 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -932,7 +932,7 @@ int kvm_apic_compare_prio(struct kvm_vcpu *vcpu1, struct kvm_vcpu *vcpu2) static bool kvm_ioapic_handles_vector(struct kvm_lapic *apic, int vector) { - return test_bit(vector, (ulong *)apic->vcpu->arch.eoi_exit_bitmap); + return test_bit(vector, apic->vcpu->arch.ioapic_handled_vectors); } static void kvm_ioapic_send_eoi(struct kvm_lapic *apic, int vector) |