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authorNicolas Schichan <nschichan@freebox.fr>2006-10-18 15:14:55 +0200
committerRalf Baechle <ralf@linux-mips.org>2006-11-30 01:14:44 +0000
commit583bb86fbb9e85287f020fe4eb5352a0ec3c66a3 (patch)
tree5aa886f3fd85387d26df30bc33ef24aeda1181f5 /include
parentc237923009da464881d89f4bc27c3b5b1a93d61b (diff)
[MIPS] Add support for kexec
A tiny userland application loading the kernel and invoking kexec_load for mips is available here: http://chac.le-poulpe.net/~nico/kexec/kexec-2006-10-18.tar.gz Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'include')
-rw-r--r--include/asm-mips/kexec.h32
-rw-r--r--include/linux/kexec.h2
2 files changed, 34 insertions, 0 deletions
diff --git a/include/asm-mips/kexec.h b/include/asm-mips/kexec.h
new file mode 100644
index 00000000000..b25267ebcb0
--- /dev/null
+++ b/include/asm-mips/kexec.h
@@ -0,0 +1,32 @@
+/*
+ * kexec.h for kexec
+ * Created by <nschichan@corp.free.fr> on Thu Oct 12 14:59:34 2006
+ *
+ * This source code is licensed under the GNU General Public License,
+ * Version 2. See the file COPYING for more details.
+ */
+
+#ifndef _MIPS_KEXEC
+# define _MIPS_KEXEC
+
+/* Maximum physical address we can use pages from */
+#define KEXEC_SOURCE_MEMORY_LIMIT (0x20000000)
+/* Maximum address we can reach in physical address mode */
+#define KEXEC_DESTINATION_MEMORY_LIMIT (0x20000000)
+ /* Maximum address we can use for the control code buffer */
+#define KEXEC_CONTROL_MEMORY_LIMIT (0x20000000)
+
+#define KEXEC_CONTROL_CODE_SIZE 4096
+
+/* The native architecture */
+#define KEXEC_ARCH KEXEC_ARCH_MIPS
+
+#define MAX_NOTE_BYTES 1024
+
+static inline void crash_setup_regs(struct pt_regs *newregs,
+ struct pt_regs *oldregs)
+{
+ /* Dummy implementation for now */
+}
+
+#endif /* !_MIPS_KEXEC */
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index 6427949ddf9..a4ede62b339 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -122,6 +122,8 @@ extern struct kimage *kexec_crash_image;
#define KEXEC_ARCH_IA_64 (50 << 16)
#define KEXEC_ARCH_S390 (22 << 16)
#define KEXEC_ARCH_SH (42 << 16)
+#define KEXEC_ARCH_MIPS_LE (10 << 16)
+#define KEXEC_ARCH_MIPS ( 8 << 16)
#define KEXEC_FLAGS (KEXEC_ON_CRASH) /* List of defined/legal kexec flags */