From: Jan Beulich <jbeulich@novell.com>
Date: Mon, 12 Sep 2005 16:49:24 +0000 (+0200)
Subject: [PATCH] x86-64: Declare NMI_VECTOR and handle it in the IPI sending code.
X-Git-Tag: v2.6.14-rc1~27
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1a426cb76443f5b0a021a9df57d3446d14763c21;p=linux-2.6

[PATCH] x86-64: Declare NMI_VECTOR and handle it in the IPI sending code.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/include/asm-x86_64/hw_irq.h b/include/asm-x86_64/hw_irq.h
index d9212eb4e8..dc97668ea0 100644
--- a/include/asm-x86_64/hw_irq.h
+++ b/include/asm-x86_64/hw_irq.h
@@ -26,6 +26,7 @@
 struct hw_interrupt_type;
 #endif
 
+#define NMI_VECTOR		0x02
 /*
  * IDT vectors usable for external interrupt sources start
  * at 0x20:
diff --git a/include/asm-x86_64/ipi.h b/include/asm-x86_64/ipi.h
index 7ba668f43c..022e9d340a 100644
--- a/include/asm-x86_64/ipi.h
+++ b/include/asm-x86_64/ipi.h
@@ -31,9 +31,20 @@
 
 static inline unsigned int __prepare_ICR (unsigned int shortcut, int vector, unsigned int dest)
 {
-	unsigned int icr =  APIC_DM_FIXED | shortcut | vector | dest;
-	if (vector == KDB_VECTOR)
-		icr = (icr & (~APIC_VECTOR_MASK)) | APIC_DM_NMI;
+	unsigned int icr = shortcut | dest;
+
+	switch (vector) {
+	default:
+		icr |= APIC_DM_FIXED | vector;
+		break;
+	case NMI_VECTOR:
+		/*
+		 * Setup KDB IPI to be delivered as an NMI
+		 */
+	case KDB_VECTOR:
+		icr |= APIC_DM_NMI;
+		break;
+	}
 	return icr;
 }