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    SubjectRe: [PATCH] x86/Xen: streamline (and fix) PV CPU enumeration
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    On 3/27/19 11:12 AM, Jan Beulich wrote:
    > -
    > -static void __init xen_filter_cpu_maps(void)
    > +static void __init _get_smp_config(unsigned int early)
    > {
    > int i, rc;
    > unsigned int subtract = 0;
    >
    > - if (!xen_initial_domain())
    > + if (early)
    > return;
    >
    > num_processors = 0;


    Is there a reason to set_cpu_possible() here (not in the diff, but in
    this routine)? This will be called from setup_arch() before
    prefill_possible_map(), which will clear and then re-initialize
    __cpu_possible_mask.



    -boris


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