From: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed, 19 Mar 2008 17:26:08 +0000 (-0300)
Subject: x86: add extra sanity check
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=0df1ba8cabc6c2d613921c75e525826e6eb3210b;p=linux-beck.git

x86: add extra sanity check

This test exists in x86_64 and also applies to i386. So we add it

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c
index 6be36d3eea4e..ae23b603978c 100644
--- a/arch/x86/kernel/smpboot_32.c
+++ b/arch/x86/kernel/smpboot_32.c
@@ -118,6 +118,12 @@ static void __init disable_smp(void)
 
 static int __init smp_sanity_check(unsigned max_cpus)
 {
+	if (!physid_isset(hard_smp_processor_id(), phys_cpu_present_map)) {
+		printk(KERN_WARNING "weird, boot CPU (#%d) not listed"
+				    "by the BIOS.\n", hard_smp_processor_id());
+		physid_set(hard_smp_processor_id(), phys_cpu_present_map);
+	}
+
 	/*
 	 * If we couldn't find an SMP configuration at boot time,
 	 * get out of here now!