1 files changed, 35 insertions, 0 deletions

diff --git a/arch/x86/mm/extable_32.c b/arch/x86/mm/extable_32.c
new file mode 100644
index 000000000000..0ce4f22a2635
--- /dev/null
+++ b/arch/x86/mm/extable_32.c
@@ -0,0 +1,35 @@
+/*
+ * linux/arch/i386/mm/extable.c
+ */
+
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <asm/uaccess.h>
+
+int fixup_exception(struct pt_regs *regs)
+{
+        const struct exception_table_entry *fixup;
+
+#ifdef CONFIG_PNPBIOS
+        if (unlikely(SEGMENT_IS_PNP_CODE(regs->xcs)))
+        {
+                extern u32 pnp_bios_fault_eip, pnp_bios_fault_esp;
+                extern u32 pnp_bios_is_utter_crap;
+                pnp_bios_is_utter_crap = 1;
+                printk(KERN_CRIT "PNPBIOS fault.. attempting recovery.\n");
+                __asm__ volatile(
+                        "movl %0, %%esp\n\t"
+                        "jmp *%1\n\t"
+                        : : "g" (pnp_bios_fault_esp), "g" (pnp_bios_fault_eip));
+                panic("do_trap: can't hit this");
+        }
+#endif
+
+        fixup = search_exception_tables(regs->eip);
+        if (fixup) {
+                regs->eip = fixup->fixup;
+                return 1;
+        }
+
+        return 0;
+}