x86: show handler for Xen-internal interrupts

... in 'i' debug key output.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Keir Fraser <keir@xen.org>

diff --git a/xen/arch/x86/irq.c b/xen/arch/x86/irq.c
index fff9f1d3539893802fe7083b97ecf5b59ff96b1e..dffb33a231ccdd0728a4ba02b784b4d8d0f3fbc9 100644 (file)
--- a/xen/arch/x86/irq.c
+++ b/xen/arch/x86/irq.c
@@ -17,6 +17,7 @@
 #include <xen/compat.h>
 #include <xen/iocap.h>
 #include <xen/iommu.h>
+#include <xen/symbols.h>
 #include <xen/trace.h>
 #include <xsm/xsm.h>
 #include <asm/msi.h>
@@ -2094,9 +2095,7 @@ static void dump_irqs(unsigned char key)
         if ( ssid )
             printk("Z=%-25s ", ssid);
 
-        if ( !(desc->status & IRQ_GUEST) )
-            printk("mapped, unbound\n");
-        else
+        if ( desc->status & IRQ_GUEST )
         {
             action = (irq_guest_action_t *)desc->action;
 
@@ -2124,6 +2123,10 @@ static void dump_irqs(unsigned char key)
 
             printk("\n");
         }
+        else if ( desc->action )
+            print_symbol("%s\n", (unsigned long)desc->action->handler);
+        else
+            printk("mapped, unbound\n");
 
         spin_unlock_irqrestore(&desc->lock, flags);