[Xen-changelog] Add debug-key for printing IRQ/IOAPIC info.

[Xen patchbot -unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User kaf24@xxxxxxxxxxxxxxxxxxxx
# Node ID 43c21adcfc79417c8dd7e7e3092679d4f2372681
# Parent  1fb47826d767ef98e36ba646199310846ad930cf

Add debug-key for printing IRQ/IOAPIC info.
Signed-off-by: Keir Fraser <keir@xxxxxxxxxxxxx>

diff -r 1fb47826d767 -r 43c21adcfc79 xen/arch/x86/io_apic.c
--- a/xen/arch/x86/io_apic.c    Thu Jul 14 10:12:51 2005
+++ b/xen/arch/x86/io_apic.c    Thu Jul 14 10:16:45 2005
@@ -27,6 +27,7 @@
 #include <xen/delay.h>
 #include <xen/sched.h>
 #include <xen/acpi.h>
+#include <xen/keyhandler.h>
 #include <asm/io.h>
 #include <asm/mc146818rtc.h>
 #include <asm/smp.h>
@@ -744,7 +745,7 @@
 {
 }
 
-void __init print_IO_APIC(void)
+void __init __print_IO_APIC(void)
 {
     int apic, i;
     union IO_APIC_reg_00 reg_00;
@@ -752,9 +753,6 @@
     union IO_APIC_reg_02 reg_02;
     union IO_APIC_reg_03 reg_03;
     unsigned long flags;
-
-    if (apic_verbosity == APIC_QUIET)
-        return;
 
     printk(KERN_DEBUG "number of MP IRQ sources: %d.\n", mp_irq_entries);
     for (i = 0; i < nr_ioapics; i++)
@@ -887,6 +885,17 @@
     printk(KERN_INFO ".................................... done.\n");
 
     return;
+}
+
+void print_IO_APIC(void)
+{
+    if (apic_verbosity != APIC_QUIET)
+        __print_IO_APIC();
+}
+
+void print_IO_APIC_keyhandler(unsigned char key)
+{
+    __print_IO_APIC();
 }
 
 static void __init enable_IO_APIC(void)
@@ -1531,6 +1540,8 @@
     init_IO_APIC_traps();
     check_timer();
     print_IO_APIC();
+
+    register_keyhandler('z', print_IO_APIC_keyhandler, "print ioapic info");
 }
 
 /* --------------------------------------------------------------------------

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