> #ifdef CONFIG_X86_LOCAL_APIC
> static unsigned long xen_apic_read(unsigned long reg)
Can't you just make them all NULL? Crashing here should be correct.
> +#ifdef CONFIG_SMP
> +static const struct smp_ops xen_smp_ops __initdata = {
Why __initdata?
> +/* VCPUs are single-cored, and have no siblings */
> +static void set_cpu_sibling_map(int cpu)
Can you put this somewhere generic and use it everywhere? Don't want
duplication of this code.
> +{
> + struct cpuinfo_x86 *c = &cpu_data[cpu];
> +
> + cpu_set(cpu, cpu_sibling_map[cpu]);
> + cpu_set(cpu, c->llc_shared_map);
> + cpu_core_map[cpu] = cpu_sibling_map[cpu];
> + c->booted_cores = 1;
> +}
> +
> +static void remove_siblinginfo(int cpu)
Similar.
> +void __init xen_fill_possible_map(void)
> +{
> + int i, rc;
> +
> + for_each_possible_cpu(i)
> + if (i != smp_processor_id())
> + return;
Strange check?
> +
> + * We need to reload %cr3 since the page tables may be going
> + * away from under us..
> + */
> +static inline void leave_mm (unsigned long cpu)
> +{
> +#ifdef CONFIG_SMP
> + if (per_cpu(cpu_tlbstate, cpu).state == TLBSTATE_OK)
> + BUG();
> + cpu_clear(cpu, per_cpu(cpu_tlbstate, cpu).active_mm->cpu_vm_mask);
> +#endif
> + load_cr3(swapper_pg_dir);
> }
Should be out of line
-Andi
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