From: "Jan Beulich" <JBeulich@novell.com>
To: "Andreas Kleen" <ak@suse.de>
Cc: <linux-kernel@vger.kernel.org>, <discuss@x86-64.org>
Subject: [PATCH] add and handle NMI_VECTOR
Date: Thu, 08 Sep 2005 18:07:56 +0200 [thread overview]
Message-ID: <43207DFC0200007800024543@emea1-mh.id2.novell.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 1399 bytes --]
(Note: Patch also attached because the inline version is certain to get
line wrapped.)
Declare NMI_VECTOR and handle it in the IPI sending code.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
diff -Npru 2.6.13/include/asm-x86_64/hw_irq.h
2.6.13-x86_64-nmi-ipi/include/asm-x86_64/hw_irq.h
--- 2.6.13/include/asm-x86_64/hw_irq.h 2005-08-29 01:41:01.000000000
+0200
+++ 2.6.13-x86_64-nmi-ipi/include/asm-x86_64/hw_irq.h 2005-03-16
12:24:42.000000000 +0100
@@ -26,6 +26,7 @@
struct hw_interrupt_type;
#endif
+#define NMI_VECTOR 0x02
/*
* IDT vectors usable for external interrupt sources start
* at 0x20:
diff -Npru 2.6.13/include/asm-x86_64/ipi.h
2.6.13-x86_64-nmi-ipi/include/asm-x86_64/ipi.h
--- 2.6.13/include/asm-x86_64/ipi.h 2005-08-29 01:41:01.000000000
+0200
+++ 2.6.13-x86_64-nmi-ipi/include/asm-x86_64/ipi.h 2005-09-01
11:32:12.000000000 +0200
@@ -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;
}
[-- Attachment #2: linux-2.6.13-x86_64-nmi-ipi.patch --]
[-- Type: application/octet-stream, Size: 1398 bytes --]
(Note: Patch also attached because the inline version is certain to get
line wrapped.)
Declare NMI_VECTOR and handle it in the IPI sending code.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
diff -Npru 2.6.13/include/asm-x86_64/hw_irq.h 2.6.13-x86_64-nmi-ipi/include/asm-x86_64/hw_irq.h
--- 2.6.13/include/asm-x86_64/hw_irq.h 2005-08-29 01:41:01.000000000 +0200
+++ 2.6.13-x86_64-nmi-ipi/include/asm-x86_64/hw_irq.h 2005-03-16 12:24:42.000000000 +0100
@@ -26,6 +26,7 @@
struct hw_interrupt_type;
#endif
+#define NMI_VECTOR 0x02
/*
* IDT vectors usable for external interrupt sources start
* at 0x20:
diff -Npru 2.6.13/include/asm-x86_64/ipi.h 2.6.13-x86_64-nmi-ipi/include/asm-x86_64/ipi.h
--- 2.6.13/include/asm-x86_64/ipi.h 2005-08-29 01:41:01.000000000 +0200
+++ 2.6.13-x86_64-nmi-ipi/include/asm-x86_64/ipi.h 2005-09-01 11:32:12.000000000 +0200
@@ -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;
}
next reply other threads:[~2005-09-08 16:06 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-08 16:07 Jan Beulich [this message]
2005-09-09 0:20 ` [discuss] " Andi Kleen
2005-09-09 0:43 ` [discuss] [PATCH] add and handle NMI_VECTOR II Andi Kleen
2005-09-09 6:42 ` Jan Beulich
2005-09-09 6:55 ` Andi Kleen
2005-09-09 7:13 ` Jan Beulich
2005-09-09 7:14 ` Andi Kleen
2005-09-09 7:57 ` Jan Beulich
2005-09-09 7:58 ` Andi Kleen
2005-09-09 8:50 ` [discuss] [PATCH] add and handle NMI_VECTOR Andi Kleen
2005-09-09 9:14 ` Jan Beulich
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