[PATCH] x86, ioapic: Add debug printing when mapping for ioapic

From: Yinghai Lu
Date: Mon Oct 25 2010 - 12:59:12 EST



It is in mp_register_ioapic().

Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx>

---
arch/x86/kernel/apic/io_apic.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)

Index: linux-2.6/arch/x86/kernel/apic/io_apic.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/apic/io_apic.c
+++ linux-2.6/arch/x86/kernel/apic/io_apic.c
@@ -4068,6 +4068,9 @@ void __init mp_register_ioapic(int id, u
mp_ioapics[idx].apicaddr = address;

set_fixmap_nocache(FIX_IO_APIC_BASE_0 + idx, address);
+ apic_printk(APIC_VERBOSE, "mapped IOAPIC to %08lx (%08x)\n",
+ __fix_to_virt(FIX_IO_APIC_BASE_0 + idx) + (address & ~PAGE_MASK),
+ address);
mp_ioapics[idx].apicid = io_apic_unique_id(id);
mp_ioapics[idx].apicver = io_apic_get_version(idx);

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