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authorIngo Molnar <mingo@kernel.org>2012-05-30 10:59:04 +0200
committerIngo Molnar <mingo@kernel.org>2012-05-30 10:59:04 +0200
commit063e04776172f93b16a5eefd5661a340c1126513 (patch)
tree19cb1623631c8cc5dcf0d91f4731feec7cbefa04 /arch/x86/include/asm/realmode.h
parent59cd358a7a5b2f6b61faa01dae6cfda3830ac62a (diff)
parent731a7378b81c2f5fa88ca1ae20b83d548d5613dc (diff)
downloadlinux-063e04776172f93b16a5eefd5661a340c1126513.tar.gz
Merge branch 'linus' into perf/urgent
Merge back Linus's latest branch so that we pick up the uprobes changes.

( I tested this branch locally and while it's one from the middle of the
  merge window it's a good one to base further work off. )

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/realmode.h')
-rw-r--r--arch/x86/include/asm/realmode.h62
1 files changed, 62 insertions, 0 deletions
diff --git a/arch/x86/include/asm/realmode.h b/arch/x86/include/asm/realmode.h
new file mode 100644
index 000000000000..fce3f4ae5bd6
--- /dev/null
+++ b/arch/x86/include/asm/realmode.h
@@ -0,0 +1,62 @@
+#ifndef _ARCH_X86_REALMODE_H
+#define _ARCH_X86_REALMODE_H
+
+#include <linux/types.h>
+#include <asm/io.h>
+
+/* This must match data at realmode.S */
+struct real_mode_header {
+	u32	text_start;
+	u32	ro_end;
+	/* SMP trampoline */
+	u32	trampoline_start;
+	u32	trampoline_status;
+	u32	trampoline_header;
+#ifdef CONFIG_X86_64
+	u32	trampoline_pgd;
+#endif
+	/* ACPI S3 wakeup */
+#ifdef CONFIG_ACPI_SLEEP
+	u32	wakeup_start;
+	u32	wakeup_header;
+#endif
+	/* APM/BIOS reboot */
+#ifdef CONFIG_X86_32
+	u32	machine_real_restart_asm;
+#endif
+};
+
+/* This must match data at trampoline_32/64.S */
+struct trampoline_header {
+#ifdef CONFIG_X86_32
+	u32 start;
+	u16 gdt_pad;
+	u16 gdt_limit;
+	u32 gdt_base;
+#else
+	u64 start;
+	u64 efer;
+	u32 cr4;
+#endif
+};
+
+extern struct real_mode_header *real_mode_header;
+extern unsigned char real_mode_blob_end[];
+
+extern unsigned long init_rsp;
+extern unsigned long initial_code;
+extern unsigned long initial_gs;
+
+extern unsigned char real_mode_blob[];
+extern unsigned char real_mode_relocs[];
+
+#ifdef CONFIG_X86_32
+extern unsigned char startup_32_smp[];
+extern unsigned char boot_gdt[];
+#else
+extern unsigned char secondary_startup_64[];
+#endif
+
+extern void __init setup_real_mode(void);
+
+#endif /* _ARCH_X86_REALMODE_H */