Re: [patch V2 16/58] x86/apic: Sanitize num_processors handling

[Thomas Gleixner]

On Mon, Jul 31 2023 at 14:50, Thomas Gleixner wrote:
> Why can't XENPV pretend that it has a smp configuration detected,
> i.e. setting smp_found_config as any other special get_smp_config()
> implementation does?

The below should do the trick, no?


--- a/arch/x86/xen/smp_pv.c
+++ b/arch/x86/xen/smp_pv.c
@@ -182,7 +182,8 @@ static void __init _get_smp_config(unsig
 	if (subtract)
 		set_nr_cpu_ids(nr_cpu_ids - subtract);
 #endif
-
+	/* Pretend to be a proper enumerated system */
+	smp_found_config = 1;
 }
 
 static void __init xen_pv_smp_prepare_boot_cpu(void)