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kvm/x86: split ioapic-handled and EOI exit bitmaps

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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>
This commit is contained in:
Andrey Smetanin
2015-11-10 15:36:32 +03:00
committed by Paolo Bonzini
parent abdb080f7a
commit 6308630bd3
8 changed files with 20 additions and 18 deletions
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2
arch/x86/kvm/svm.c
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@@ -3564,7 +3564,7 @@ static int svm_cpu_uses_apicv(struct kvm_vcpu *vcpu)
return 0;
}
static void svm_load_eoi_exitmap(struct kvm_vcpu *vcpu)
static void svm_load_eoi_exitmap(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap)
{
return;
}