Initial import

1 files changed, 51 insertions, 0 deletions

diff --git a/arch/x86/kernel/head32.c b/arch/x86/kernel/head32.c
new file mode 100644
index 000000000..2911ef3a9
--- /dev/null
+++ b/arch/x86/kernel/head32.c
@@ -0,0 +1,51 @@
+/*
+ *  linux/arch/i386/kernel/head32.c -- prepare to run common code
+ *
+ *  Copyright (C) 2000 Andrea Arcangeli <andrea@suse.de> SuSE
+ *  Copyright (C) 2007 Eric Biederman <ebiederm@xmission.com>
+ */
+
+#include <linux/init.h>
+#include <linux/start_kernel.h>
+#include <linux/mm.h>
+#include <linux/memblock.h>
+
+#include <asm/setup.h>
+#include <asm/sections.h>
+#include <asm/e820.h>
+#include <asm/page.h>
+#include <asm/apic.h>
+#include <asm/io_apic.h>
+#include <asm/bios_ebda.h>
+#include <asm/tlbflush.h>
+#include <asm/bootparam_utils.h>
+
+static void __init i386_default_early_setup(void)
+{
+	/* Initialize 32bit specific setup functions */
+	x86_init.resources.reserve_resources = i386_reserve_resources;
+	x86_init.mpparse.setup_ioapic_ids = setup_ioapic_ids_from_mpc;
+
+	reserve_ebda_region();
+}
+
+asmlinkage __visible void __init i386_start_kernel(void)
+{
+	cr4_init_shadow();
+	sanitize_boot_params(&boot_params);
+
+	/* Call the subarch specific early setup function */
+	switch (boot_params.hdr.hardware_subarch) {
+	case X86_SUBARCH_INTEL_MID:
+		x86_intel_mid_early_setup();
+		break;
+	case X86_SUBARCH_CE4100:
+		x86_ce4100_early_setup();
+		break;
+	default:
+		i386_default_early_setup();
+		break;
+	}
+
+	start_kernel();
+}