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    KVM: PPC: Book3S: Provide different CAPs based on HV or PR mode · 7a58777a
    Alexander Graf 提交于
    With Book3S KVM we can create both PR and HV VMs in parallel on the same
    machine. That gives us new challenges on the CAPs we return - both have
    different capabilities.
    
    When we get asked about CAPs on the kvm fd, there's nothing we can do. We
    can try to be smart and assume we're running HV if HV is available, PR
    otherwise. However with the newly added VM CHECK_EXTENSION we can now ask
    for capabilities directly on a VM which knows whether it's PR or HV.
    
    With this patch I can successfully expose KVM PVINFO data to user space
    in the PR case, fixing magic page mapping for PAPR guests.
    Signed-off-by: NAlexander Graf <agraf@suse.de>
    Acked-by: NPaolo Bonzini <pbonzini@redhat.com>
    7a58777a
powerpc.c 28.2 KB