• Paolo Bonzini's avatar
    KVM: x86: store IOAPIC-handled vectors in each VCPU · 3bb345f3
    Paolo Bonzini authored
    We can reuse the algorithm that computes the EOI exit bitmap to figure
    out which vectors are handled by the IOAPIC.  The only difference
    between the two is for edge-triggered interrupts other than IRQ8
    that have no notifiers active; however, the IOAPIC does not have to
    do anything special for these interrupts anyway.
    
    This again limits the interactions between the IOAPIC and the LAPIC,
    making it easier to move the former to userspace.
    
    Inspired by a patch from Steve Rutherford.
    Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
    3bb345f3
vmx.c 295 KB