4 files changed, 15 insertions, 8 deletions

diff --git a/arch/i386/kernel/crash.c b/arch/i386/kernel/crash.c
index 21dc1bbb8067..0c88d3ec8c18 100644
--- a/arch/i386/kernel/crash.c
+++ b/arch/i386/kernel/crash.c
@@ -120,14 +120,9 @@ static int crash_nmi_callback(struct pt_regs *regs, int cpu)
         return 1;
 }
 
-/*
- * By using the NMI code instead of a vector we just sneak thru the
- * word generator coming out with just what we want.  AND it does
- * not matter if clustered_apic_mode is set or not.
- */
 static void smp_send_nmi_allbutself(void)
 {
-        send_IPI_allbutself(APIC_DM_NMI);
+        send_IPI_allbutself(NMI_VECTOR);
 }
 
 static void nmi_shootdown_cpus(void)
diff --git a/arch/i386/kernel/smp.c b/arch/i386/kernel/smp.c
index d134e9643a58..c10789d7a9d3 100644
--- a/arch/i386/kernel/smp.c
+++ b/arch/i386/kernel/smp.c
@@ -114,7 +114,17 @@ DEFINE_PER_CPU(struct tlb_state, cpu_tlbstate) ____cacheline_aligned = { &init_m
 
 static inline int __prepare_ICR (unsigned int shortcut, int vector)
 {
-        return APIC_DM_FIXED | shortcut | vector | APIC_DEST_LOGICAL;
+        unsigned int icr = shortcut | APIC_DEST_LOGICAL;
+
+        switch (vector) {
+        default:
+                icr |= APIC_DM_FIXED | vector;
+                break;
+        case NMI_VECTOR:
+                icr |= APIC_DM_NMI;
+                break;
+        }
+        return icr;
 }
 
 static inline int __prepare_ICR2 (unsigned int mask)
diff --git a/arch/x86_64/kernel/crash.c b/arch/x86_64/kernel/crash.c
index ec1c7431d5af..8ca04912b1cc 100644
--- a/arch/x86_64/kernel/crash.c
+++ b/arch/x86_64/kernel/crash.c
@@ -118,7 +118,7 @@ static int crash_nmi_callback(struct pt_regs *regs, int cpu)
 
 static void smp_send_nmi_allbutself(void)
 {
-        send_IPI_allbutself(APIC_DM_NMI);
+        send_IPI_allbutself(NMI_VECTOR);
 }
 
 /*
diff --git a/include/asm-i386/hw_irq.h b/include/asm-i386/hw_irq.h
index 95d3fd090298..a4c0a5a9ffd8 100644
--- a/include/asm-i386/hw_irq.h
+++ b/include/asm-i386/hw_irq.h
@@ -19,6 +19,8 @@
 
 struct hw_interrupt_type;
 
+#define NMI_VECTOR              0x02
+
 /*
  * Various low-level irq details needed by irq.c, process.c,
  * time.c, io_apic.c and smp.c