• Alexander Graf's avatar
    KVM: PPC: BookE: Implement EPR exit · 1c810636
    Alexander Graf authored
    The External Proxy Facility in FSL BookE chips allows the interrupt
    controller to automatically acknowledge an interrupt as soon as a
    core gets its pending external interrupt delivered.
    
    Today, user space implements the interrupt controller, so we need to
    check on it during such a cycle.
    
    This patch implements logic for user space to enable EPR exiting,
    disable EPR exiting and EPR exiting itself, so that user space can
    acknowledge an interrupt when an external interrupt has successfully
    been delivered into the guest vcpu.
    Signed-off-by: default avatarAlexander Graf <agraf@suse.de>
    1c810636
kvm_host.h 13.2 KB