mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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ad757b6aa5
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
36 lines
747 B
C
36 lines
747 B
C
/*
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* linux/arch/i386/mm/extable.c
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*/
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#include <linux/module.h>
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#include <linux/spinlock.h>
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#include <asm/uaccess.h>
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int fixup_exception(struct pt_regs *regs)
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{
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const struct exception_table_entry *fixup;
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#ifdef CONFIG_PNPBIOS
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if (unlikely(SEGMENT_IS_PNP_CODE(regs->xcs)))
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{
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extern u32 pnp_bios_fault_eip, pnp_bios_fault_esp;
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extern u32 pnp_bios_is_utter_crap;
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pnp_bios_is_utter_crap = 1;
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printk(KERN_CRIT "PNPBIOS fault.. attempting recovery.\n");
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__asm__ volatile(
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"movl %0, %%esp\n\t"
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"jmp *%1\n\t"
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: : "g" (pnp_bios_fault_esp), "g" (pnp_bios_fault_eip));
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panic("do_trap: can't hit this");
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}
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#endif
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fixup = search_exception_tables(regs->eip);
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if (fixup) {
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regs->eip = fixup->fixup;
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return 1;
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}
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return 0;
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}
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