This is the DUMP_VECTOR interrupt addition.
diff -urN -X /home/bharata/dontdiff linux-2.5.40/arch/i386/kernel/smp.c linux-2.5.40+lkcd/arch/i386/kernel/smp.c
--- linux-2.5.40/arch/i386/kernel/smp.c Tue Oct 1 12:36:17 2002
+++ linux-2.5.40+lkcd/arch/i386/kernel/smp.c Thu Oct 3 07:29:17 2002
@@ -19,6 +19,7 @@
#include <linux/mc146818rtc.h>
#include <linux/cache.h>
#include <linux/interrupt.h>
+#include <linux/dump.h>
#include <asm/mtrr.h>
#include <asm/pgalloc.h>
@@ -143,6 +144,13 @@
*/
cfg = __prepare_ICR(shortcut, vector);
+ if (vector == DUMP_VECTOR) {
+ /*
+ * Setup DUMP IPI to be delivered as an NMI
+ */
+ cfg = (cfg&~APIC_VECTOR_MASK)|APIC_DM_NMI;
+ }
+
/*
* Send the IPI. The write to APIC_ICR fires this off.
*/
@@ -504,6 +512,11 @@
do_flush_tlb_all_local();
}
+void dump_send_ipi(void)
+{
+ send_IPI_allbutself(DUMP_VECTOR);
+}
+
/*
* this function sends a 'reschedule' IPI to another CPU.
* it goes straight through and wastes no time serializing
diff -urN -X /home/bharata/dontdiff linux-2.5.40/arch/i386/mach-generic/irq_vectors.h linux-2.5.40+lkcd/arch/i386/mach-generic/irq_vectors.h
--- linux-2.5.40/arch/i386/mach-generic/irq_vectors.h Tue Oct 1 12:36:25 2002
+++ linux-2.5.40+lkcd/arch/i386/mach-generic/irq_vectors.h Thu Oct 3 07:18:35 2002
@@ -48,6 +48,7 @@
#define INVALIDATE_TLB_VECTOR 0xfd
#define RESCHEDULE_VECTOR 0xfc
#define CALL_FUNCTION_VECTOR 0xfb
+#define DUMP_VECTOR 0xfa
#define THERMAL_APIC_VECTOR 0xf0
/*