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authorEric W. Biederman <ebiederm@xmission.com>2005-06-25 14:57:56 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-25 16:24:49 -0700
commit5033cba087f6ac773002123aafbea1aad4267682 (patch)
treefa0301c28c004e81d3aad597f23ea2407db8396c /arch/i386/kernel/crash.c
parentdd2a13054ffc25783a74afb5e4a0f2115e45f9cd (diff)
downloadblackbird-op-linux-5033cba087f6ac773002123aafbea1aad4267682.tar.gz
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[PATCH] kexec: x86 kexec core
This is the i386 implementation of kexec. Signed-off-by: Eric Biederman <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/i386/kernel/crash.c')
-rw-r--r--arch/i386/kernel/crash.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/i386/kernel/crash.c b/arch/i386/kernel/crash.c
new file mode 100644
index 000000000000..fa27a6c2abb6
--- /dev/null
+++ b/arch/i386/kernel/crash.c
@@ -0,0 +1,42 @@
+/*
+ * Architecture specific (i386) functions for kexec based crash dumps.
+ *
+ * Created by: Hariprasad Nellitheertha (hari@in.ibm.com)
+ *
+ * Copyright (C) IBM Corporation, 2004. All rights reserved.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/smp.h>
+#include <linux/irq.h>
+#include <linux/reboot.h>
+#include <linux/kexec.h>
+#include <linux/irq.h>
+#include <linux/delay.h>
+#include <linux/elf.h>
+#include <linux/elfcore.h>
+
+#include <asm/processor.h>
+#include <asm/hardirq.h>
+#include <asm/nmi.h>
+#include <asm/hw_irq.h>
+
+#define MAX_NOTE_BYTES 1024
+typedef u32 note_buf_t[MAX_NOTE_BYTES/4];
+
+note_buf_t crash_notes[NR_CPUS];
+
+void machine_crash_shutdown(void)
+{
+ /* This function is only called after the system
+ * has paniced or is otherwise in a critical state.
+ * The minimum amount of code to allow a kexec'd kernel
+ * to run successfully needs to happen here.
+ *
+ * In practice this means shooting down the other cpus in
+ * an SMP system.
+ */
+}
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