arm64: Support hard limit of cpu count by nr_cpus
Enable the hard limit of cpu count by set boot options nr_cpus=x on arm64, and make a minor change about message when total number of cpu exceeds the limit. Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Reported-by: Shiyuan Hu <hushiyuan@huawei.com> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
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@ -661,9 +661,9 @@ void __init smp_init_cpus(void)
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acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_INTERRUPT,
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acpi_parse_gic_cpu_interface, 0);
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if (cpu_count > NR_CPUS)
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pr_warn("no. of cores (%d) greater than configured maximum of %d - clipping\n",
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cpu_count, NR_CPUS);
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if (cpu_count > nr_cpu_ids)
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pr_warn("Number of cores (%d) exceeds configured maximum of %d - clipping\n",
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cpu_count, nr_cpu_ids);
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if (!bootcpu_valid) {
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pr_err("missing boot CPU MPIDR, not enabling secondaries\n");
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@ -677,7 +677,7 @@ void __init smp_init_cpus(void)
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* with entries in cpu_logical_map while initializing the cpus.
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* If the cpu set-up fails, invalidate the cpu_logical_map entry.
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*/
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for (i = 1; i < NR_CPUS; i++) {
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for (i = 1; i < nr_cpu_ids; i++) {
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if (cpu_logical_map(i) != INVALID_HWID) {
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if (smp_cpu_setup(i))
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cpu_logical_map(i) = INVALID_HWID;
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